├── .idea
    ├── compiler.xml
    ├── encodings.xml
    ├── libraries
    │   ├── Maven__asm_asm_all_3_3_1.xml
    │   ├── Maven__cglib_cglib_3_2_12.xml
    │   ├── Maven__org_aspectj_aspectjweaver_1_9_4.xml
    │   ├── Maven__org_ow2_asm_asm_7_1.xml
    │   ├── Maven__org_springframework_spring_aop_5_1_6_RELEASE.xml
    │   ├── Maven__org_springframework_spring_beans_5_1_6_RELEASE.xml
    │   ├── Maven__org_springframework_spring_context_5_1_6_RELEASE.xml
    │   ├── Maven__org_springframework_spring_core_5_1_6_RELEASE.xml
    │   ├── Maven__org_springframework_spring_expression_5_1_6_RELEASE.xml
    │   └── Maven__org_springframework_spring_jcl_5_1_6_RELEASE.xml
    ├── misc.xml
    ├── modules.xml
    ├── vcs.xml
    └── workspace.xml
├── DesignPatterns.iml
├── pom.xml
└── src
    └── main
        ├── java
            └── com
            │   └── mashibing
            │       └── dp
            │           ├── ASM
            │               ├── ClassPrinter.java
            │               ├── ClassTransformerTest.java
            │               ├── ClassWriteTest.java
            │               ├── Main.java
            │               ├── MyClassLoader.java
            │               ├── T1.java
            │               ├── Tank.java
            │               └── TimeProxy.java
            │           ├── Iterator
            │               ├── v1
            │               │   └── Main.java
            │               ├── v2
            │               │   └── Main.java
            │               ├── v3
            │               │   ├── ArrayList_.java
            │               │   ├── Collection_.java
            │               │   ├── LinkedList_.java
            │               │   └── Main.java
            │               ├── v4
            │               │   ├── ArrayList_.java
            │               │   ├── Collection_.java
            │               │   ├── LinkedList_.java
            │               │   └── Main.java
            │               ├── v5
            │               │   ├── ArrayList_.java
            │               │   ├── Collection_.java
            │               │   ├── Iterator_.java
            │               │   ├── LinkedList_.java
            │               │   └── Main.java
            │               ├── v6
            │               │   └── Main.java
            │               └── v7
            │               │   ├── ArrayList_.java
            │               │   ├── Collection_.java
            │               │   ├── Iterator_.java
            │               │   ├── LinkedList_.java
            │               │   └── Main.java
            │           ├── TemplateMethod
            │               └── Main.java
            │           ├── Test.java
            │           ├── abstractfactory
            │               ├── AK47.java
            │               ├── AbastractFactory.java
            │               ├── Bread.java
            │               ├── Broom.java
            │               ├── Car.java
            │               ├── Food.java
            │               ├── MagicFactory.java
            │               ├── MagicStick.java
            │               ├── Main.java
            │               ├── ModernFactory.java
            │               ├── MushRoom.java
            │               ├── Vehicle.java
            │               └── Weapon.java
            │           ├── adapter
            │               └── Main.java
            │           ├── bridge
            │               ├── v1
            │               │   ├── Book.java
            │               │   ├── Flower.java
            │               │   ├── GG.java
            │               │   ├── Gift.java
            │               │   └── MM.java
            │               ├── v2
            │               │   ├── Book.java
            │               │   ├── Flower.java
            │               │   ├── GG.java
            │               │   ├── Gift.java
            │               │   ├── MM.java
            │               │   ├── WarmGift.java
            │               │   ├── WildGift.java
            │               │   └── readme
            │               ├── v3
            │               │   ├── Book.java
            │               │   ├── Flower.java
            │               │   ├── GG.java
            │               │   ├── Gift.java
            │               │   ├── MM.java
            │               │   ├── WarmFlower.java
            │               │   ├── WarmGift.java
            │               │   ├── WildGift.java
            │               │   └── readme
            │               └── v4
            │               │   ├── Book.java
            │               │   ├── Flower.java
            │               │   ├── GG.java
            │               │   ├── Gift.java
            │               │   ├── GiftImpl.java
            │               │   ├── MM.java
            │               │   ├── WarmGift.java
            │               │   ├── WildGift.java
            │               │   └── readme
            │           ├── builder
            │               ├── ComplexTerrainBuilder.java
            │               ├── Main.java
            │               ├── Person.java
            │               ├── Terrain.java
            │               └── TerrainBuilder.java
            │           ├── cglib
            │               └── Main.java
            │           ├── command
            │               ├── Command.java
            │               ├── Content.java
            │               ├── CopyCommand.java
            │               ├── DeleteCommand.java
            │               ├── InsertCommand.java
            │               └── Main.java
            │           ├── composite
            │               └── Main.java
            │           ├── cor
            │               ├── Main.java
            │               ├── Main.java.bak
            │               └── servlet
            │               │   ├── v1
            │               │       └── Servlet_Main.java
            │               │   ├── v2
            │               │       ├── Servlet_Main.java
            │               │       └── readme
            │               │   ├── v3
            │               │       ├── Servlet_Main.java
            │               │       └── readme
            │               │   └── v4
            │               │       ├── Servlet_Main.java
            │               │       └── readme
            │           ├── decorator
            │               ├── Main.java
            │               └── readme
            │           ├── factorymethod
            │               ├── Broom.java
            │               ├── Car.java
            │               ├── CarFactory.java
            │               ├── Main.java
            │               ├── Moveable.java
            │               ├── Plane.java
            │               └── SimpleVehicleFactory.java
            │           ├── flyweight
            │               ├── BulletPool.java
            │               └── TestString.java
            │           ├── intepreter
            │               └── readme
            │           ├── memento
            │               └── readme
            │           ├── observer
            │               ├── v1
            │               │   └── Main1.java
            │               ├── v10
            │               │   └── readme
            │               ├── v11
            │               │   └── readme
            │               ├── v2
            │               │   └── Main.java
            │               ├── v3
            │               │   └── Main.java
            │               ├── v4
            │               │   └── Main.java
            │               ├── v5
            │               │   └── Main.java
            │               ├── v6
            │               │   └── Main.java
            │               ├── v7
            │               │   └── Main.java
            │               ├── v8
            │               │   └── Main.java
            │               └── v9
            │               │   ├── Test.java
            │               │   └── TestFrame.java
            │           ├── prototype
            │               ├── v1
            │               │   └── Test.java
            │               ├── v2
            │               │   └── Test.java
            │               ├── v3
            │               │   └── Test.java
            │               └── v4
            │               │   └── Test.java
            │           ├── proxy
            │               ├── v01
            │               │   └── Tank.java
            │               ├── v02
            │               │   └── Tank.java
            │               ├── v03
            │               │   └── Tank.java
            │               ├── v04
            │               │   └── Tank.java
            │               ├── v05
            │               │   └── Tank.java
            │               ├── v06
            │               │   └── Tank.java
            │               ├── v07
            │               │   └── Tank.java
            │               ├── v08
            │               │   └── Tank.java
            │               ├── v09
            │               │   └── Tank.java
            │               ├── v10
            │               │   └── Tank.java
            │               └── v11
            │               │   ├── LogInterceptor.java
            │               │   ├── RealSubject.java
            │               │   ├── Subject.java
            │               │   └── Test.java
            │           ├── singleton
            │               ├── Main.java
            │               ├── Mgr01.java
            │               ├── Mgr02.java
            │               ├── Mgr03.java
            │               ├── Mgr04.java
            │               ├── Mgr05.java
            │               ├── Mgr06.java
            │               ├── Mgr07.java
            │               └── Mgr08.java
            │           ├── spring
            │               ├── v1
            │               │   ├── Main.java
            │               │   ├── Tank.java
            │               │   └── TimeProxy.java
            │               └── v2
            │               │   ├── Main.java
            │               │   ├── Tank.java
            │               │   └── TimeProxy.java
            │           ├── state
            │               ├── readme
            │               ├── thread
            │               │   ├── Action.java
            │               │   ├── NewState.java
            │               │   ├── RunningState.java
            │               │   ├── TerminatedState.java
            │               │   ├── ThreadState_.java
            │               │   └── Thread_.java
            │               ├── v1
            │               │   └── MM.java
            │               └── v2
            │               │   ├── MM.java
            │               │   ├── MMHappyState.java
            │               │   ├── MMNervousState.java
            │               │   ├── MMSadState.java
            │               │   └── MMState.java
            │           ├── strategy
            │               ├── Cat.java
            │               ├── CatHeightComparator.java
            │               ├── CatWeightComparator.java
            │               ├── Comparable.java
            │               ├── Comparator.java
            │               ├── Dog.java
            │               ├── DogComparator.java
            │               ├── Main.java
            │               └── Sorter.java
            │           └── visitor
            │               └── Computer.java
        └── resources
            ├── app.xml
            └── app_auto.xml


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 827 |             <element signature="e#317#318#0" expanded="true" />
 828 |             <element signature="e#353#354#0" expanded="true" />
 829 |           </folding>
 830 |         </state>
 831 |       </provider>
 832 |     </entry>
 833 |     <entry file="file://$PROJECT_DIR$/src/main/java/com/mashibing/dp/state/v1/MM.java">
 834 |       <provider selected="true" editor-type-id="text-editor">
 835 |         <state relative-caret-position="184">
 836 |           <caret line="8" column="36" selection-start-line="8" selection-start-column="36" selection-end-line="8" selection-end-column="36" />
 837 |         </state>
 838 |       </provider>
 839 |     </entry>
 840 |     <entry file="file://$PROJECT_DIR$/src/main/java/com/mashibing/dp/state/v2/MMSadState.java">
 841 |       <provider selected="true" editor-type-id="text-editor">
 842 |         <state relative-caret-position="46">
 843 |           <caret line="2" column="13" selection-start-line="2" selection-start-column="13" selection-end-line="2" selection-end-column="13" />
 844 |         </state>
 845 |       </provider>
 846 |     </entry>
 847 |     <entry file="file://$PROJECT_DIR$/src/main/java/com/mashibing/dp/state/v2/MM.java">
 848 |       <provider selected="true" editor-type-id="text-editor">
 849 |         <state relative-caret-position="220">
 850 |           <caret line="11" column="19" selection-start-line="11" selection-start-column="14" selection-end-line="11" selection-end-column="19" />
 851 |         </state>
 852 |       </provider>
 853 |     </entry>
 854 |     <entry file="file://$PROJECT_DIR$/src/main/java/com/mashibing/dp/state/v2/MMHappyState.java">
 855 |       <provider selected="true" editor-type-id="text-editor">
 856 |         <state relative-caret-position="286">
 857 |           <caret line="15" selection-start-line="15" selection-end-line="15" />
 858 |           <folding>
 859 |             <element signature="e#111#112#0" expanded="true" />
 860 |             <element signature="e#160#161#0" expanded="true" />
 861 |           </folding>
 862 |         </state>
 863 |       </provider>
 864 |     </entry>
 865 |     <entry file="file://$PROJECT_DIR$/src/main/java/com/mashibing/dp/state/v2/MMNervousState.java">
 866 |       <provider selected="true" editor-type-id="text-editor">
 867 |         <state relative-caret-position="308">
 868 |           <caret line="14" column="16" selection-start-line="14" selection-start-column="16" selection-end-line="14" selection-end-column="16" />
 869 |         </state>
 870 |       </provider>
 871 |     </entry>
 872 |     <entry file="file://$PROJECT_DIR$/src/main/java/com/mashibing/dp/state/v2/MMState.java">
 873 |       <provider selected="true" editor-type-id="text-editor">
 874 |         <state relative-caret-position="154">
 875 |           <caret line="7" selection-start-line="7" selection-end-line="7" />
 876 |         </state>
 877 |       </provider>
 878 |     </entry>
 879 |     <entry file="file://$PROJECT_DIR$/src/main/java/com/mashibing/dp/state/thread/ThreadState_.java">
 880 |       <provider selected="true" editor-type-id="text-editor">
 881 |         <state relative-caret-position="66">
 882 |           <caret line="3" column="17" selection-start-line="3" selection-start-column="17" selection-end-line="3" selection-end-column="17" />
 883 |         </state>
 884 |       </provider>
 885 |     </entry>
 886 |     <entry file="file://$PROJECT_DIR$/src/main/java/com/mashibing/dp/state/thread/Action.java">
 887 |       <provider selected="true" editor-type-id="text-editor">
 888 |         <state relative-caret-position="66">
 889 |           <caret line="3" column="15" selection-start-line="3" selection-start-column="15" selection-end-line="3" selection-end-column="15" />
 890 |         </state>
 891 |       </provider>
 892 |     </entry>
 893 |     <entry file="file://$PROJECT_DIR$/src/main/java/com/mashibing/dp/state/thread/RunningState.java">
 894 |       <provider selected="true" editor-type-id="text-editor">
 895 |         <state relative-caret-position="198">
 896 |           <caret line="11" selection-start-line="11" selection-end-line="11" />
 897 |         </state>
 898 |       </provider>
 899 |     </entry>
 900 |     <entry file="file://$PROJECT_DIR$/src/main/java/com/mashibing/dp/state/thread/TerminatedState.java">
 901 |       <provider selected="true" editor-type-id="text-editor">
 902 |         <state relative-caret-position="176">
 903 |           <caret line="10" column="20" selection-start-line="10" selection-start-column="14" selection-end-line="10" selection-end-column="20" />
 904 |         </state>
 905 |       </provider>
 906 |     </entry>
 907 |     <entry file="file://$PROJECT_DIR$/src/main/java/com/mashibing/dp/state/thread/NewState.java">
 908 |       <provider selected="true" editor-type-id="text-editor">
 909 |         <state relative-caret-position="242">
 910 |           <caret line="13" column="5" selection-start-line="13" selection-start-column="5" selection-end-line="13" selection-end-column="5" />
 911 |         </state>
 912 |       </provider>
 913 |     </entry>
 914 |     <entry file="file://$PROJECT_DIR$/src/main/java/com/mashibing/dp/state/thread/Thread_.java">
 915 |       <provider selected="true" editor-type-id="text-editor">
 916 |         <state relative-caret-position="110">
 917 |           <caret line="5" column="13" selection-start-line="5" selection-start-column="9" selection-end-line="5" selection-end-column="13" />
 918 |         </state>
 919 |       </provider>
 920 |     </entry>
 921 |     <entry file="file://$PROJECT_DIR$/pom.xml">
 922 |       <provider selected="true" editor-type-id="text-editor">
 923 |         <state relative-caret-position="766">
 924 |           <caret line="36" column="14" lean-forward="true" selection-start-line="36" selection-start-column="14" selection-end-line="36" selection-end-column="14" />
 925 |         </state>
 926 |       </provider>
 927 |     </entry>
 928 |     <entry file="file://$PROJECT_DIR$/src/main/java/com/mashibing/dp/observer/v8/Main.java">
 929 |       <provider selected="true" editor-type-id="text-editor">
 930 |         <state relative-caret-position="372">
 931 |           <caret line="37" column="9" lean-forward="true" selection-start-line="37" selection-start-column="9" selection-end-line="37" selection-end-column="9" />
 932 |         </state>
 933 |       </provider>
 934 |     </entry>
 935 |     <entry file="file://$PROJECT_DIR$/src/main/java/com/mashibing/dp/proxy/v04/Tank.java">
 936 |       <provider selected="true" editor-type-id="text-editor">
 937 |         <state relative-caret-position="504">
 938 |           <caret line="40" column="10" selection-start-line="40" selection-start-column="10" selection-end-line="40" selection-end-column="10" />
 939 |         </state>
 940 |       </provider>
 941 |     </entry>
 942 |     <entry file="file://$PROJECT_DIR$/src/main/java/com/mashibing/dp/spring/v1/TimeProxy.java">
 943 |       <provider selected="true" editor-type-id="text-editor">
 944 |         <state relative-caret-position="110">
 945 |           <caret line="5" column="28" selection-start-line="5" selection-start-column="28" selection-end-line="5" selection-end-column="28" />
 946 |           <folding>
 947 |             <element signature="e#88#89#0" expanded="true" />
 948 |             <element signature="e#169#170#0" expanded="true" />
 949 |           </folding>
 950 |         </state>
 951 |       </provider>
 952 |     </entry>
 953 |     <entry file="jar://C:/jdk1.8/jre/lib/rt.jar!/sun/reflect/NativeMethodAccessorImpl.class">
 954 |       <provider selected="true" editor-type-id="text-editor">
 955 |         <state relative-caret-position="86">
 956 |           <caret line="26" selection-start-line="26" selection-end-line="26" />
 957 |         </state>
 958 |       </provider>
 959 |     </entry>
 960 |     <entry file="file://$PROJECT_DIR$/src/main/java/com/mashibing/dp/proxy/v10/Tank.java">
 961 |       <provider selected="true" editor-type-id="text-editor">
 962 |         <state relative-caret-position="-21">
 963 |           <caret line="36" selection-start-line="36" selection-end-line="36" />
 964 |           <folding>
 965 |             <element signature="e#1424#1425#0" expanded="true" />
 966 |             <element signature="e#1450#1451#0" expanded="true" />
 967 |             <element signature="e#1478#1479#0" expanded="true" />
 968 |             <element signature="e#1530#1531#0" expanded="true" />
 969 |             <element signature="e#1557#1558#0" expanded="true" />
 970 |             <element signature="e#1608#1609#0" expanded="true" />
 971 |           </folding>
 972 |         </state>
 973 |       </provider>
 974 |     </entry>
 975 |     <entry file="jar://C:/jdk1.8/src.zip!/java/lang/reflect/Proxy.java">
 976 |       <provider selected="true" editor-type-id="text-editor">
 977 |         <state relative-caret-position="141">
 978 |           <caret line="702" column="25" selection-start-line="702" selection-start-column="25" selection-end-line="702" selection-end-column="25" />
 979 |         </state>
 980 |       </provider>
 981 |     </entry>
 982 |     <entry file="file://$PROJECT_DIR$/src/main/java/com/mashibing/dp/proxy/v11/Subject.java">
 983 |       <provider selected="true" editor-type-id="text-editor">
 984 |         <state relative-caret-position="132">
 985 |           <caret line="6" column="16" selection-start-line="6" selection-start-column="16" selection-end-line="6" selection-end-column="16" />
 986 |         </state>
 987 |       </provider>
 988 |     </entry>
 989 |     <entry file="file://$PROJECT_DIR$/src/main/java/com/mashibing/dp/proxy/v11/RealSubject.java">
 990 |       <provider selected="true" editor-type-id="text-editor">
 991 |         <state relative-caret-position="154">
 992 |           <caret line="7" selection-start-line="7" selection-end-line="7" />
 993 |           <folding>
 994 |             <element signature="e#217#218#0" expanded="true" />
 995 |             <element signature="e#273#274#0" expanded="true" />
 996 |           </folding>
 997 |         </state>
 998 |       </provider>
 999 |     </entry>
1000 |     <entry file="file://$PROJECT_DIR$/src/main/java/com/mashibing/dp/proxy/v11/Test.java">
1001 |       <provider selected="true" editor-type-id="text-editor">
1002 |         <state relative-caret-position="290">
1003 |           <caret line="24" selection-start-line="24" selection-end-line="24" />
1004 |           <folding>
1005 |             <element signature="imports" expanded="true" />
1006 |           </folding>
1007 |         </state>
1008 |       </provider>
1009 |     </entry>
1010 |     <entry file="file://$PROJECT_DIR$/src/main/java/com/mashibing/dp/proxy/v11/LogInterceptor.java">
1011 |       <provider selected="true" editor-type-id="text-editor">
1012 |         <state relative-caret-position="254">
1013 |           <caret line="39" column="38" selection-start-line="39" selection-start-column="28" selection-end-line="39" selection-end-column="38" />
1014 |           <folding>
1015 |             <element signature="imports" expanded="true" />
1016 |             <element signature="e#322#323#0" expanded="true" />
1017 |             <element signature="e#358#359#0" expanded="true" />
1018 |           </folding>
1019 |         </state>
1020 |       </provider>
1021 |     </entry>
1022 |   </component>
1023 |   <component name="masterDetails">
1024 |     <states>
1025 |       <state key="ArtifactsStructureConfigurable.UI">
1026 |         <settings>
1027 |           <artifact-editor />
1028 |           <splitter-proportions>
1029 |             <option name="proportions">
1030 |               <list>
1031 |                 <option value="0.2" />
1032 |               </list>
1033 |             </option>
1034 |           </splitter-proportions>
1035 |         </settings>
1036 |       </state>
1037 |       <state key="FacetStructureConfigurable.UI">
1038 |         <settings>
1039 |           <last-edited>Spring</last-edited>
1040 |           <splitter-proportions>
1041 |             <option name="proportions">
1042 |               <list>
1043 |                 <option value="0.2" />
1044 |               </list>
1045 |             </option>
1046 |           </splitter-proportions>
1047 |         </settings>
1048 |       </state>
1049 |       <state key="GlobalLibrariesConfigurable.UI">
1050 |         <settings>
1051 |           <splitter-proportions>
1052 |             <option name="proportions">
1053 |               <list>
1054 |                 <option value="0.2" />
1055 |               </list>
1056 |             </option>
1057 |           </splitter-proportions>
1058 |         </settings>
1059 |       </state>
1060 |       <state key="JdkListConfigurable.UI">
1061 |         <settings>
1062 |           <last-edited>1.8</last-edited>
1063 |           <splitter-proportions>
1064 |             <option name="proportions">
1065 |               <list>
1066 |                 <option value="0.2" />
1067 |               </list>
1068 |             </option>
1069 |           </splitter-proportions>
1070 |         </settings>
1071 |       </state>
1072 |       <state key="ModuleStructureConfigurable.UI">
1073 |         <settings>
1074 |           <last-edited>DesignPatterns</last-edited>
1075 |           <splitter-proportions>
1076 |             <option name="proportions">
1077 |               <list>
1078 |                 <option value="0.2" />
1079 |                 <option value="0.6" />
1080 |               </list>
1081 |             </option>
1082 |           </splitter-proportions>
1083 |         </settings>
1084 |       </state>
1085 |       <state key="ProjectLibrariesConfigurable.UI">
1086 |         <settings>
1087 |           <last-edited>Maven: cglib:cglib:3.2.12</last-edited>
1088 |           <splitter-proportions>
1089 |             <option name="proportions">
1090 |               <list>
1091 |                 <option value="0.2" />
1092 |               </list>
1093 |             </option>
1094 |           </splitter-proportions>
1095 |         </settings>
1096 |       </state>
1097 |     </states>
1098 |   </component>
1099 | </project>


--------------------------------------------------------------------------------
/DesignPatterns.iml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
 3 |   <component name="FacetManager">
 4 |     <facet type="Spring" name="Spring">
 5 |       <configuration />
 6 |     </facet>
 7 |   </component>
 8 |   <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_8">
 9 |     <output url="file://$MODULE_DIR$/target/classes" />
10 |     <output-test url="file://$MODULE_DIR$/target/test-classes" />
11 |     <content url="file://$MODULE_DIR$">
12 |       <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
13 |       <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
14 |       <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
15 |       <excludeFolder url="file://$MODULE_DIR$/target" />
16 |     </content>
17 |     <orderEntry type="inheritedJdk" />
18 |     <orderEntry type="sourceFolder" forTests="false" />
19 |     <orderEntry type="library" name="Maven: org.springframework:spring-context:5.1.6.RELEASE" level="project" />
20 |     <orderEntry type="library" name="Maven: org.springframework:spring-aop:5.1.6.RELEASE" level="project" />
21 |     <orderEntry type="library" name="Maven: org.springframework:spring-beans:5.1.6.RELEASE" level="project" />
22 |     <orderEntry type="library" name="Maven: org.springframework:spring-core:5.1.6.RELEASE" level="project" />
23 |     <orderEntry type="library" name="Maven: org.springframework:spring-jcl:5.1.6.RELEASE" level="project" />
24 |     <orderEntry type="library" name="Maven: org.springframework:spring-expression:5.1.6.RELEASE" level="project" />
25 |     <orderEntry type="library" name="Maven: org.aspectj:aspectjweaver:1.9.4" level="project" />
26 |     <orderEntry type="library" name="Maven: cglib:cglib:3.2.12" level="project" />
27 |     <orderEntry type="library" name="Maven: org.ow2.asm:asm:7.1" level="project" />
28 |     <orderEntry type="library" name="Maven: asm:asm-all:3.3.1" level="project" />
29 |   </component>
30 | </module>


--------------------------------------------------------------------------------
/pom.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <project xmlns="http://maven.apache.org/POM/4.0.0"
 3 |          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4 |          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 5 |     <modelVersion>4.0.0</modelVersion>
 6 | 
 7 |     <groupId>mashibing.com</groupId>
 8 |     <artifactId>DesignPatterns</artifactId>
 9 |     <version>1.0-SNAPSHOT</version>
10 | 
11 |     <dependencies>
12 |         <!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
13 |         <dependency>
14 |             <groupId>org.springframework</groupId>
15 |             <artifactId>spring-context</artifactId>
16 |             <version>5.1.6.RELEASE</version>
17 |         </dependency>
18 | 
19 |         <!-- https://mvnrepository.com/artifact/org.aspectj/aspectjweaver -->
20 |         <dependency>
21 |             <groupId>org.aspectj</groupId>
22 |             <artifactId>aspectjweaver</artifactId>
23 |             <version>1.9.4</version>
24 |         </dependency>
25 | 
26 | 
27 |         <!-- https://mvnrepository.com/artifact/cglib/cglib -->
28 |         <dependency>
29 |             <groupId>cglib</groupId>
30 |             <artifactId>cglib</artifactId>
31 |             <version>3.2.12</version>
32 |         </dependency>
33 | 
34 |         <!-- https://mvnrepository.com/artifact/asm/asm-all -->
35 |         <dependency>
36 |             <groupId>asm</groupId>
37 |             <artifactId>asm-all</artifactId>
38 |             <version>3.3.1</version>
39 |         </dependency>
40 | 
41 | 
42 |     </dependencies>
43 |     <build>
44 |         <plugins>
45 |             <plugin>
46 |                 <groupId>org.apache.maven.plugins</groupId>
47 |                 <artifactId>maven-compiler-plugin</artifactId>
48 |                 <version>3.2</version>
49 |                 <configuration>
50 |                     <source>1.8</source>
51 |                     <target>1.8</target>
52 |                 </configuration>
53 |             </plugin>
54 |         </plugins>
55 |     </build>
56 | </project>


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/ASM/ClassPrinter.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.ASM;
 2 | 
 3 | import org.objectweb.asm.ClassReader;
 4 | import org.objectweb.asm.ClassVisitor;
 5 | import org.objectweb.asm.FieldVisitor;
 6 | import org.objectweb.asm.MethodVisitor;
 7 | 
 8 | import java.io.IOException;
 9 | 
10 | import static org.objectweb.asm.Opcodes.ASM4;
11 | 
12 | public class ClassPrinter extends ClassVisitor {
13 |     public ClassPrinter() {
14 |         super(ASM4);
15 |     }
16 | 
17 |     @Override
18 |     public void visit(int version, int access, String name, String signature, String superName, String[] interfaces) {
19 |         System.out.println(name + " extends " + superName + "{" );
20 |     }
21 | 
22 |     @Override
23 |     public FieldVisitor visitField(int access, String name, String descriptor, String signature, Object value) {
24 |         System.out.println("    " + name);
25 |         return null;
26 |     }
27 | 
28 |     @Override
29 |     public MethodVisitor visitMethod(int access, String name, String descriptor, String signature, String[] exceptions) {
30 |         System.out.println("    " + name + "()");
31 |         return null;
32 |     }
33 | 
34 |     @Override
35 |     public void visitEnd() {
36 | 
37 |         System.out.println("}");
38 |     }
39 | 
40 |     public static void main(String[] args) throws IOException {
41 |         ClassPrinter cp = new ClassPrinter();
42 |         //ClassReader cr = new ClassReader("java.lang.Runnable");
43 |         ClassReader cr = new ClassReader(
44 |                 ClassPrinter.class.getClassLoader().getResourceAsStream("com/mashibing/dp/ASM/T1.class"));
45 | 
46 | 
47 |         cr.accept(cp, 0);
48 |     }
49 | }
50 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/ASM/ClassTransformerTest.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.ASM;
 2 | 
 3 | import org.objectweb.asm.*;
 4 | 
 5 | import java.io.File;
 6 | import java.io.FileOutputStream;
 7 | import java.io.OutputStream;
 8 | 
 9 | import static org.objectweb.asm.Opcodes.*;
10 | 
11 | public class ClassTransformerTest {
12 |     public static void main(String[] args) throws Exception {
13 |         ClassReader cr = new ClassReader(
14 |                 ClassPrinter.class.getClassLoader().getResourceAsStream("com/mashibing/dp/ASM/Tank.class"));
15 | 
16 |         ClassWriter cw = new ClassWriter(0);
17 |         ClassVisitor cv = new ClassVisitor(ASM4, cw) {
18 |             @Override
19 |             public MethodVisitor visitMethod(int access, String name, String descriptor, String signature, String[] exceptions) {
20 |                 MethodVisitor mv = super.visitMethod(access, name, descriptor, signature, exceptions);
21 |                 //return mv;
22 |                 return new MethodVisitor(ASM4, mv) {
23 |                     @Override
24 |                     public void visitCode() {
25 |                         visitMethodInsn(INVOKESTATIC, "com/mashibing/dp/ASM/TimeProxy","before", "()V", false);
26 |                         super.visitCode();
27 |                     }
28 |                 };
29 |             }
30 |         };
31 | 
32 |         cr.accept(cv, 0);
33 |         byte[] b2 = cw.toByteArray();
34 | 
35 |         MyClassLoader cl = new MyClassLoader();
36 |         //Class c = cl.loadClass("com.mashibing.dp.ASM.Tank");
37 |         cl.loadClass("com.mashibing.dp.ASM.TimeProxy");
38 |         Class c2 = cl.defineClass("com.mashibing.dp.ASM.Tank", b2);
39 |         c2.getConstructor().newInstance();
40 | 
41 | 
42 |         String path = (String)System.getProperties().get("user.dir");
43 |         File f = new File(path + "/com/mashibing/dp/ASM/");
44 |         f.mkdirs();
45 | 
46 |         FileOutputStream fos = new FileOutputStream(new File(path + "/com/mashibing/dp/ASM/Tank_0.class"));
47 |         fos.write(b2);
48 |         fos.flush();
49 |         fos.close();
50 | 
51 |     }
52 | }
53 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/ASM/ClassWriteTest.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.ASM;
 2 | 
 3 | import org.objectweb.asm.ClassWriter;
 4 | 
 5 | import static org.objectweb.asm.Opcodes.*;
 6 | 
 7 | public class ClassWriteTest {
 8 |     public static void main(String[] args) {
 9 |         ClassWriter cw = new ClassWriter(0);
10 |         cw.visit(V1_5, ACC_PUBLIC + ACC_ABSTRACT + ACC_INTERFACE,
11 |                 "pkg/Comparable", null, "java/lang/Object",
12 |                 null);
13 |         cw.visitField(ACC_PUBLIC + ACC_FINAL + ACC_STATIC, "LESS", "I",
14 |                 null, -1).visitEnd();
15 |         cw.visitField(ACC_PUBLIC + ACC_FINAL + ACC_STATIC, "EQUAL", "I",
16 |                 null, 0).visitEnd();
17 |         cw.visitField(ACC_PUBLIC + ACC_FINAL + ACC_STATIC, "GREATER", "I",
18 |                 null, 1).visitEnd();
19 |         cw.visitMethod(ACC_PUBLIC + ACC_ABSTRACT, "compareTo",
20 |                 "(Ljava/lang/Object;)I", null, null).visitEnd();
21 |         cw.visitEnd();
22 |         byte[] b = cw.toByteArray();
23 | 
24 |         MyClassLoader myClassLoader = new MyClassLoader();
25 |         Class c = myClassLoader.defineClass("pkg.Comparable", b);
26 |         System.out.println(c.getMethods()[0].getName());
27 |     }
28 | }
29 | 
30 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/ASM/Main.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.ASM;
2 | 
3 | public class Main {
4 |     public static void main(String[] args) {
5 |         new T1();
6 |     }
7 | }
8 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/ASM/MyClassLoader.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.ASM;
 2 | 
 3 | class MyClassLoader extends ClassLoader {
 4 |     public Class defineClass(String name, byte[] b) {
 5 |         return defineClass(name, b, 0, b.length);
 6 |     }
 7 | 
 8 | 
 9 | }
10 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/ASM/T1.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.ASM;
 2 | 
 3 | /**
 4 |  * 光标必须位于类体内，View-Show ByteCode
 5 |  */
 6 | 
 7 | public class T1 {
 8 |     int i = 0;
 9 |     public void m() {
10 |         int j=1;
11 |     }
12 | 
13 | }
14 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/ASM/Tank.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.ASM;
2 | 
3 | public class Tank {
4 |     public void move(){
5 |         System.out.println("Tank Moving ClaClaCla ...");
6 |     }
7 | }
8 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/ASM/TimeProxy.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.ASM;
2 | 
3 | public class TimeProxy {
4 | 
5 |     public static void before() {
6 |         System.out.println("before ...");
7 |     }
8 | }
9 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/Iterator/v1/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.Iterator.v1;
 2 | 
 3 | /**
 4 |  * 构建一个容器，可以添加对象
 5 |  */
 6 | 
 7 | public class Main {
 8 |     public static void main(String[] args) {
 9 |         ArrayList_ list = new ArrayList_();
10 |         for(int i=0; i<15; i++) {
11 |             list.add(new String("s" + i));
12 |         }
13 |         System.out.println(list.size());
14 |     }
15 | }
16 | 
17 | 
18 | /**
19 |  * 相比数组，这个容器不用考虑边界问题，可以动态扩展
20 |  */
21 | class ArrayList_ {
22 |     Object[] objects = new Object[10];
23 |     //objects中下一个空的位置在哪儿,或者说，目前容器中有多少个元素
24 |     private int index = 0;
25 |     public void add(Object o) {
26 |         if(index == objects.length) {
27 |             Object[] newObjects = new Object[objects.length*2];
28 |             System.arraycopy(objects, 0, newObjects, 0, objects.length);
29 |             objects = newObjects;
30 |         }
31 | 
32 |         objects[index] = o;
33 |         index ++;
34 |     }
35 | 
36 |     public int size() {
37 |         return index;
38 |     }
39 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/Iterator/v2/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.Iterator.v2;
 2 | 
 3 | /**
 4 |  * v1:构建一个容器，可以添加对象
 5 |  * v2:用链表来实现一个容器
 6 |  */
 7 | 
 8 | public class Main {
 9 |     public static void main(String[] args) {
10 |         LinkedList_ list = new LinkedList_();
11 |         for(int i=0; i<15; i++) {
12 |             list.add(new String("s" + i));
13 |         }
14 |         System.out.println(list.size());
15 |     }
16 | }
17 | 
18 | 
19 | /**
20 |  * 相比数组，这个容器不用考虑边界问题，可以动态扩展
21 |  */
22 | class LinkedList_ {
23 |     Node head = null;
24 |     Node tail = null;
25 |     //目前容器中有多少个元素
26 |     private int size = 0;
27 | 
28 |     public void add(Object o) {
29 |         Node n = new Node(o);
30 |         n.next = null;
31 | 
32 |         if(head == null) {
33 |             head = n;
34 |             tail = n;
35 |         }
36 | 
37 |         tail.next = n;
38 |         tail = n;
39 |         size++;
40 |     }
41 | 
42 |     private class Node {
43 |         private Object o;
44 |         Node next;
45 | 
46 |         public Node(Object o) {
47 |             this.o = o;
48 |         }
49 |     }
50 | 
51 |     public int size() {
52 |         return size;
53 |     }
54 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/Iterator/v3/ArrayList_.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.Iterator.v3;
 2 | 
 3 | 
 4 | /**
 5 |  * 相比数组，这个容器不用考虑边界问题，可以动态扩展
 6 |  */
 7 | class ArrayList_ implements Collection_ {
 8 |     Object[] objects = new Object[10];
 9 |     //objects中下一个空的位置在哪儿,或者说，目前容器中有多少个元素
10 |     private int index = 0;
11 |     public void add(Object o) {
12 |         if(index == objects.length) {
13 |             Object[] newObjects = new Object[objects.length*2];
14 |             System.arraycopy(objects, 0, newObjects, 0, objects.length);
15 |             objects = newObjects;
16 |         }
17 | 
18 |         objects[index] = o;
19 |         index ++;
20 |     }
21 | 
22 |     public int size() {
23 |         return index;
24 |     }
25 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/Iterator/v3/Collection_.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.Iterator.v3;
2 | 
3 | public interface Collection_ {
4 |     void add(Object o);
5 |     int size();
6 | }
7 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/Iterator/v3/LinkedList_.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.Iterator.v3;
 2 | 
 3 | /**
 4 |  * 相比数组，这个容器不用考虑边界问题，可以动态扩展
 5 |  */
 6 | class LinkedList_ implements Collection_ {
 7 |     Node head = null;
 8 |     Node tail = null;
 9 |     //目前容器中有多少个元素
10 |     private int size = 0;
11 | 
12 |     public void add(Object o) {
13 |         Node n = new Node(o);
14 |         n.next = null;
15 | 
16 |         if(head == null) {
17 |             head = n;
18 |             tail = n;
19 |         }
20 | 
21 |         tail.next = n;
22 |         tail = n;
23 |         size++;
24 |     }
25 | 
26 |     private class Node {
27 |         private Object o;
28 |         Node next;
29 | 
30 |         public Node(Object o) {
31 |             this.o = o;
32 |         }
33 |     }
34 | 
35 |     public int size() {
36 |         return size;
37 |     }
38 | }
39 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/Iterator/v3/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.Iterator.v3;
 2 | 
 3 | /**
 4 |  * v1:构建一个容器，可以添加对象
 5 |  * v2:用链表来实现一个容器
 6 |  * v3:添加容器的共同接口，实现容器的替换
 7 |  */
 8 | 
 9 | public class Main {
10 |     public static void main(String[] args) {
11 |         Collection_ list = new ArrayList_();
12 |         for(int i=0; i<15; i++) {
13 |             list.add(new String("s" + i));
14 |         }
15 |         System.out.println(list.size());
16 |     }
17 | }
18 | 
19 | 
20 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/Iterator/v4/ArrayList_.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.Iterator.v4;
 2 | 
 3 | 
 4 | /**
 5 |  * 相比数组，这个容器不用考虑边界问题，可以动态扩展
 6 |  */
 7 | class ArrayList_ implements Collection_ {
 8 |     Object[] objects = new Object[10];
 9 |     //objects中下一个空的位置在哪儿,或者说，目前容器中有多少个元素
10 |     private int index = 0;
11 |     public void add(Object o) {
12 |         if(index == objects.length) {
13 |             Object[] newObjects = new Object[objects.length*2];
14 |             System.arraycopy(objects, 0, newObjects, 0, objects.length);
15 |             objects = newObjects;
16 |         }
17 | 
18 |         objects[index] = o;
19 |         index ++;
20 |     }
21 | 
22 |     public int size() {
23 |         return index;
24 |     }
25 | 
26 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/Iterator/v4/Collection_.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.Iterator.v4;
2 | 
3 | public interface Collection_ {
4 |     void add(Object o);
5 |     int size();
6 | }
7 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/Iterator/v4/LinkedList_.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.Iterator.v4;
 2 | 
 3 | /**
 4 |  * 相比数组，这个容器不用考虑边界问题，可以动态扩展
 5 |  */
 6 | class LinkedList_ implements Collection_ {
 7 |     Node head = null;
 8 |     Node tail = null;
 9 |     //目前容器中有多少个元素
10 |     private int size = 0;
11 | 
12 |     public void add(Object o) {
13 |         Node n = new Node(o);
14 |         n.next = null;
15 | 
16 |         if(head == null) {
17 |             head = n;
18 |             tail = n;
19 |         }
20 | 
21 |         tail.next = n;
22 |         tail = n;
23 |         size++;
24 |     }
25 | 
26 |     private class Node {
27 |         private Object o;
28 |         Node next;
29 | 
30 |         public Node(Object o) {
31 |             this.o = o;
32 |         }
33 |     }
34 | 
35 |     public int size() {
36 |         return size;
37 |     }
38 | }
39 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/Iterator/v4/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.Iterator.v4;
 2 | 
 3 | /**
 4 |  * v1:构建一个容器，可以添加对象
 5 |  * v2:用链表来实现一个容器
 6 |  * v3:添加容器的共同接口，实现容器的替换
 7 |  * v4:如何对容器遍历呢？
 8 |  */
 9 | 
10 | public class Main {
11 |     public static void main(String[] args) {
12 |         Collection_ list = new ArrayList_();
13 |         for(int i=0; i<15; i++) {
14 |             list.add(new String("s" + i));
15 |         }
16 |         System.out.println(list.size());
17 | 
18 | 
19 |         ArrayList_ al = (ArrayList_)list;
20 |         for(int i=0; i<al.size(); i++) {
21 |             //如果用这种遍历方式，就不能实现通用了
22 |         }
23 |     }
24 | }
25 | 
26 | 
27 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/Iterator/v5/ArrayList_.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.Iterator.v5;
 2 | 
 3 | 
 4 | /**
 5 |  * 相比数组，这个容器不用考虑边界问题，可以动态扩展
 6 |  */
 7 | class ArrayList_ implements Collection_ {
 8 |     Object[] objects = new Object[10];
 9 |     //objects中下一个空的位置在哪儿,或者说，目前容器中有多少个元素
10 |     private int index = 0;
11 |     public void add(Object o) {
12 |         if(index == objects.length) {
13 |             Object[] newObjects = new Object[objects.length*2];
14 |             System.arraycopy(objects, 0, newObjects, 0, objects.length);
15 |             objects = newObjects;
16 |         }
17 | 
18 |         objects[index] = o;
19 |         index ++;
20 |     }
21 | 
22 |     public int size() {
23 |         return index;
24 |     }
25 | 
26 |     @Override
27 |     public Iterator_ iterator() {
28 |         return new ArrayListIterator();
29 |     }
30 | 
31 |     private class ArrayListIterator implements Iterator_{
32 | 
33 |         private int currentIndex = 0;
34 | 
35 |         @Override
36 |         public boolean hasNext() {
37 |             if(currentIndex >= index) return false;
38 |             return true;
39 |         }
40 | 
41 |         @Override
42 |         public Object next() {
43 |             Object o = objects[currentIndex];
44 |             currentIndex ++;
45 |             return o;
46 |         }
47 |     }
48 | 
49 | 
50 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/Iterator/v5/Collection_.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.Iterator.v5;
2 | 
3 | public interface Collection_ {
4 |     void add(Object o);
5 |     int size();
6 | 
7 |     Iterator_ iterator();
8 | }
9 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/Iterator/v5/Iterator_.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.Iterator.v5;
2 | 
3 | public interface Iterator_ {
4 |     boolean hasNext();
5 | 
6 |     Object next();
7 | }
8 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/Iterator/v5/LinkedList_.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.Iterator.v5;
 2 | 
 3 | /**
 4 |  * 相比数组，这个容器不用考虑边界问题，可以动态扩展
 5 |  */
 6 | class LinkedList_ implements Collection_ {
 7 |     Node head = null;
 8 |     Node tail = null;
 9 |     //目前容器中有多少个元素
10 |     private int size = 0;
11 | 
12 |     public void add(Object o) {
13 |         Node n = new Node(o);
14 |         n.next = null;
15 | 
16 |         if(head == null) {
17 |             head = n;
18 |             tail = n;
19 |         }
20 | 
21 |         tail.next = n;
22 |         tail = n;
23 |         size++;
24 |     }
25 | 
26 |     private class Node {
27 |         private Object o;
28 |         Node next;
29 | 
30 |         public Node(Object o) {
31 |             this.o = o;
32 |         }
33 |     }
34 | 
35 |     public int size() {
36 |         return size;
37 |     }
38 | 
39 |     @Override
40 |     public Iterator_ iterator() {
41 |         return null;
42 |     }
43 | }
44 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/Iterator/v5/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.Iterator.v5;
 2 | 
 3 | import java.util.Iterator;
 4 | 
 5 | /**
 6 |  * v1:构建一个容器，可以添加对象
 7 |  * v2:用链表来实现一个容器
 8 |  * v3:添加容器的共同接口，实现容器的替换
 9 |  * v4:如何对容器遍历呢？
10 |  * v4:用一种统一的遍历方式，要求每一个容器都要提供Iterator的实现类
11 |  *    作业：实现LinkedList的Iterator
12 |  */
13 | 
14 | public class Main {
15 |     public static void main(String[] args) {
16 |         Collection_ list = new ArrayList_();
17 |         for(int i=0; i<15; i++) {
18 |             list.add(new String("s" + i));
19 |         }
20 |         System.out.println(list.size());
21 | 
22 |         //这个接口的调用方式：
23 |         Iterator_ it = list.iterator();
24 |         while(it.hasNext()) {
25 |             Object o = it.next();
26 |             System.out.println(o);
27 |         }
28 |     }
29 | }
30 | 
31 | 
32 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/Iterator/v6/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.Iterator.v6;
 2 | 
 3 | import java.util.ArrayList;
 4 | import java.util.Collection;
 5 | import java.util.Iterator;
 6 | 
 7 | /**
 8 |  * v1:构建一个容器，可以添加对象
 9 |  * v2:用链表来实现一个容器
10 |  * v3:添加容器的共同接口，实现容器的替换
11 |  * v4:如何对容器遍历呢？
12 |  * v4:用一种统一的遍历方式，要求每一个容器都要提供Iterator的实现类
13 |  *    作业：实现LinkedList的Iterator
14 |  * v6:JDK的容器的Iterator
15 |  */
16 | 
17 | public class Main {
18 |     public static void main(String[] args) {
19 |         Collection c = new ArrayList();
20 |         for(int i=0; i<15; i++) {
21 |             c.add(new String("s" + i));
22 |         }
23 | 
24 |         Iterator it = c.iterator();
25 |         while(it.hasNext()) {
26 |             System.out.println(it.next());
27 |         }
28 |     }
29 | }
30 | 
31 | 
32 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/Iterator/v7/ArrayList_.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.Iterator.v7;
 2 | 
 3 | 
 4 | /**
 5 |  * 相比数组，这个容器不用考虑边界问题，可以动态扩展
 6 |  */
 7 | class ArrayList_<E> implements Collection_<E> {
 8 |     E[] objects = (E[])new Object[10];
 9 |     //objects中下一个空的位置在哪儿,或者说，目前容器中有多少个元素
10 |     private int index = 0;
11 |     public void add(E o) {
12 |         if(index == objects.length) {
13 |             E[] newObjects = (E[])new Object[objects.length*2];
14 |             System.arraycopy(objects, 0, newObjects, 0, objects.length);
15 |             objects = newObjects;
16 |         }
17 | 
18 |         objects[index] = o;
19 |         index ++;
20 |     }
21 | 
22 |     public int size() {
23 |         return index;
24 |     }
25 | 
26 |     @Override
27 |     public Iterator_<E> iterator() {
28 |         return new ArrayListIterator();
29 |     }
30 | 
31 |     private class ArrayListIterator<E> implements Iterator_<E> {
32 | 
33 |         private int currentIndex = 0;
34 | 
35 |         @Override
36 |         public boolean hasNext() {
37 |             if(currentIndex >= index) return false;
38 |             return true;
39 |         }
40 | 
41 |         @Override
42 |         public E next() {
43 |             E o = (E)objects[currentIndex];
44 |             currentIndex ++;
45 |             return o;
46 |         }
47 |     }
48 | 
49 | 
50 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/Iterator/v7/Collection_.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.Iterator.v7;
2 | 
3 | public interface Collection_<E> {
4 |     void add(E o);
5 |     int size();
6 | 
7 |     Iterator_ iterator();
8 | }
9 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/Iterator/v7/Iterator_.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.Iterator.v7;
2 | 
3 | public interface Iterator_<E> { //Element //Type //K //Value V Tank
4 |     boolean hasNext();
5 | 
6 |     E next(); //Tank next() Iterator_<Tank> it = ... Tank t = it.next();
7 | }
8 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/Iterator/v7/LinkedList_.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.Iterator.v7;
 2 | 
 3 | /**
 4 |  * 相比数组，这个容器不用考虑边界问题，可以动态扩展
 5 |  */
 6 | class LinkedList_ implements Collection_ {
 7 |     Node head = null;
 8 |     Node tail = null;
 9 |     //目前容器中有多少个元素
10 |     private int size = 0;
11 | 
12 |     public void add(Object o) {
13 |         Node n = new Node(o);
14 |         n.next = null;
15 | 
16 |         if(head == null) {
17 |             head = n;
18 |             tail = n;
19 |         }
20 | 
21 |         tail.next = n;
22 |         tail = n;
23 |         size++;
24 |     }
25 | 
26 |     private class Node {
27 |         private Object o;
28 |         Node next;
29 | 
30 |         public Node(Object o) {
31 |             this.o = o;
32 |         }
33 |     }
34 | 
35 |     public int size() {
36 |         return size;
37 |     }
38 | 
39 |     @Override
40 |     public Iterator_ iterator() {
41 |         return null;
42 |     }
43 | }
44 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/Iterator/v7/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.Iterator.v7;
 2 | 
 3 | /**
 4 |  * v1:构建一个容器，可以添加对象
 5 |  * v2:用链表来实现一个容器
 6 |  * v3:添加容器的共同接口，实现容器的替换
 7 |  * v4:如何对容器遍历呢？
 8 |  * v4:用一种统一的遍历方式，要求每一个容器都要提供Iterator的实现类
 9 |  *    作业：实现LinkedList的Iterator
10 |  * v6:JDK的容器实现
11 |  * v7:实现泛型版本
12 |  */
13 | 
14 | public class Main {
15 |     public static void main(String[] args) {
16 |         Collection_<String> list = new ArrayList_<>();
17 |         for(int i=0; i<15; i++) {
18 |             list.add(new String("s" + i));
19 |         }
20 |         System.out.println(list.size());
21 | 
22 |         //这个接口的调用方式：
23 |         Iterator_<String> it = list.iterator();
24 |         while(it.hasNext()) {
25 |             String o = it.next();
26 |             System.out.println(o);
27 |         }
28 |     }
29 | }
30 | 
31 | 
32 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/TemplateMethod/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.TemplateMethod;
 2 | 
 3 | public class Main {
 4 |     public static void main(String[] args) {
 5 |         F f = new C1();
 6 |         f.m();
 7 |     }
 8 | 
 9 | }
10 | 
11 | abstract class F {
12 |     public void m() {
13 |         op1();
14 |         op2();
15 |     }
16 | 
17 |     abstract void op1();
18 |     abstract void op2();
19 | }
20 | 
21 | class C1 extends F {
22 | 
23 |     @Override
24 |     void op1() {
25 |         System.out.println("op1");
26 |     }
27 | 
28 |     @Override
29 |     void op2() {
30 |         System.out.println("op2");
31 |     }
32 | }
33 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/Test.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp;
 2 | 
 3 | import java.awt.*;
 4 | import java.awt.event.WindowAdapter;
 5 | import java.awt.event.WindowEvent;
 6 | import java.awt.event.WindowListener;
 7 | import java.util.concurrent.locks.LockSupport;
 8 | 
 9 | public class Test {
10 |     public static void main(String[] args) throws Exception {
11 |         Thread t = new Thread(()->{
12 |             System.out.println("start");
13 |             LockSupport.park(); //一直wait
14 |             System.out.println("continue");
15 |         });
16 |         t.start();
17 | 
18 |         Thread.sleep(1000);
19 |         LockSupport.unpark(t); //t线程解除wait态
20 |     }
21 | }
22 | 
23 | //javap
24 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/abstractfactory/AK47.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.abstractfactory;
2 | 
3 | public class AK47 extends Weapon{
4 |     public void shoot() {
5 |         System.out.println("tututututu....");
6 |     }
7 | }
8 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/abstractfactory/AbastractFactory.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.abstractfactory;
2 | 
3 | public abstract class AbastractFactory {
4 |     abstract Food createFood();
5 |     abstract Vehicle createVehicle();
6 |     abstract Weapon createWeapon();
7 | }
8 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/abstractfactory/Bread.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.abstractfactory;
2 | 
3 | public class Bread extends Food{
4 |     public void printName() {
5 |         System.out.println("wdm");
6 |     }
7 | }
8 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/abstractfactory/Broom.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.abstractfactory;
2 | 
3 | public class Broom extends Vehicle{
4 |     public void go() {
5 |         System.out.println("Car go wuwuwuwuw....");
6 |     }
7 | }
8 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/abstractfactory/Car.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.abstractfactory;
2 | 
3 | public class Car extends Vehicle{
4 | 
5 |     public void go() {
6 |         System.out.println("Car go wuwuwuwuw....");
7 |     }
8 | }
9 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/abstractfactory/Food.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.abstractfactory;
2 | 
3 | public abstract class Food {
4 |    abstract void printName();
5 | }
6 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/abstractfactory/MagicFactory.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.abstractfactory;
 2 | 
 3 | public class MagicFactory extends AbastractFactory {
 4 |     @Override
 5 |     Food createFood() {
 6 |         return new MushRoom();
 7 |     }
 8 | 
 9 |     @Override
10 |     Vehicle createVehicle() {
11 |         return new Broom();
12 |     }
13 | 
14 |     @Override
15 |     Weapon createWeapon() {
16 |         return new MagicStick();
17 |     }
18 | }
19 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/abstractfactory/MagicStick.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.abstractfactory;
2 | 
3 | public class MagicStick extends Weapon{
4 |     public void shoot() {
5 |         System.out.println("diandian....");
6 |     }
7 | }
8 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/abstractfactory/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.abstractfactory;
 2 | 
 3 | public class Main {
 4 |     public static void main(String[] args) {
 5 |         AbastractFactory f = new ModernFactory();
 6 | 
 7 |         Vehicle c = f.createVehicle();
 8 |         c.go();
 9 |         Weapon w = f.createWeapon();
10 |         w.shoot();
11 |         Food b = f.createFood();
12 |         b.printName();
13 |     }
14 | }
15 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/abstractfactory/ModernFactory.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.abstractfactory;
 2 | 
 3 | 
 4 | public class ModernFactory extends AbastractFactory {
 5 |     @Override
 6 |     Food createFood() {
 7 |         return new Bread();
 8 |     }
 9 | 
10 |     @Override
11 |     Vehicle createVehicle() {
12 |         return new Car();
13 |     }
14 | 
15 |     @Override
16 |     Weapon createWeapon() {
17 |         return new AK47();
18 |     }
19 | }
20 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/abstractfactory/MushRoom.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.abstractfactory;
2 | 
3 | public class MushRoom extends Food{
4 |     public void printName() {
5 |         System.out.println("dmg");
6 |     }
7 | }
8 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/abstractfactory/Vehicle.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.abstractfactory;
2 | 
3 | public abstract class Vehicle { //interface
4 |     abstract void go();
5 | }
6 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/abstractfactory/Weapon.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.abstractfactory;
2 | 
3 | public abstract class Weapon {
4 |     abstract void shoot();
5 | }
6 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/adapter/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.adapter;
 2 | 
 3 | import java.io.BufferedReader;
 4 | import java.io.FileInputStream;
 5 | import java.io.InputStreamReader;
 6 | 
 7 | 
 8 | public class Main {
 9 |     public static void main(String[] args) throws Exception {
10 |         FileInputStream fis = new FileInputStream("c:/test.text");
11 |         InputStreamReader isr = new InputStreamReader(fis);
12 |         BufferedReader br = new BufferedReader(isr);
13 |         String line = br.readLine();
14 |         while (line != null && !line.equals("")) {
15 |             System.out.println(line);
16 |         }
17 |         br.close();
18 | 
19 | 
20 |     }
21 | }
22 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v1/Book.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v1;
2 | 
3 | public class Book extends Gift {
4 | }
5 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v1/Flower.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v1;
2 | 
3 | public class Flower extends Gift {
4 | }
5 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v1/GG.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.bridge.v1;
 2 | 
 3 | public class GG {
 4 |     public void chase(MM mm) {
 5 |         Gift g = new Book();
 6 |         give(mm, g);
 7 |     }
 8 | 
 9 |     public void give(MM mm, Gift g) {
10 | 
11 |     }
12 | 
13 | 
14 | }
15 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v1/Gift.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v1;
2 | 
3 | public abstract class Gift {}
4 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v1/MM.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v1;
2 | 
3 | public class MM {
4 |     String name;
5 | }
6 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v2/Book.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v2;
2 | 
3 | public class Book extends Gift {
4 | }
5 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v2/Flower.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v2;
2 | 
3 | public class Flower extends Gift {
4 | }
5 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v2/GG.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.bridge.v2;
 2 | 
 3 | public class GG {
 4 |     public void chase(MM mm) {
 5 |         Gift g = new Book();
 6 |         give(mm, g);
 7 |     }
 8 | 
 9 |     public void give(MM mm, Gift g) {
10 | 
11 |     }
12 | 
13 | 
14 | }
15 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v2/Gift.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v2;
2 | 
3 | public abstract class Gift {}
4 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v2/MM.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v2;
2 | 
3 | public class MM {
4 |     String name;
5 | }
6 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v2/WarmGift.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v2;
2 | 
3 | public class WarmGift extends Gift {
4 | }
5 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v2/WildGift.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v2;
2 | 
3 | public class WildGift extends Gift {
4 | }
5 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v2/readme:
--------------------------------------------------------------------------------
1 | 如果礼物分为温柔的礼物和狂野的礼物
2 | WarmGift WildGift


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v3/Book.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v3;
2 | 
3 | public class Book extends Gift {
4 | }
5 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v3/Flower.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v3;
2 | 
3 | public class Flower extends Gift {
4 | }
5 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v3/GG.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.bridge.v3;
 2 | 
 3 | public class GG {
 4 |     public void chase(MM mm) {
 5 |         Gift g = new Book();
 6 |         give(mm, g);
 7 |     }
 8 | 
 9 |     public void give(MM mm, Gift g) {
10 | 
11 |     }
12 | 
13 | 
14 | }
15 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v3/Gift.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v3;
2 | 
3 | public abstract class Gift {}
4 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v3/MM.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v3;
2 | 
3 | public class MM {
4 |     String name;
5 | }
6 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v3/WarmFlower.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v3;
2 | 
3 | /**
4 |  * 或者从WarmGift继承
5 |  * 或者从Flower继承
6 |  */
7 | public class WarmFlower extends Flower {
8 | }
9 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v3/WarmGift.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v3;
2 | 
3 | public class WarmGift extends Gift {
4 | }
5 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v3/WildGift.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v3;
2 | 
3 | public class WildGift extends Gift {
4 | }
5 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v3/readme:
--------------------------------------------------------------------------------
 1 | 如果礼物分为温柔的礼物和狂野的礼物
 2 | WarmGift WildGift
 3 | 这时Flower应该分为
 4 | WarmFlower WildFlower
 5 | WarmBook WildBook
 6 | 
 7 | 如果再有别的礼物，比如抽象类型：ToughGift ColdGift
 8 | 或者具体的某种实现：Ring Car
 9 | 
10 | 就会产生类的爆炸
11 | WarmCar ColdRing WildCar WildFlower ...


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v4/Book.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v4;
2 | 
3 | public class Book extends GiftImpl {
4 | }
5 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v4/Flower.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v4;
2 | 
3 | public class Flower extends GiftImpl {
4 | }
5 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v4/GG.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.bridge.v4;
 2 | 
 3 | public class GG {
 4 |     public void chase(MM mm) {
 5 |         Gift g = new WarmGift(new Flower());
 6 |         give(mm, g);
 7 |     }
 8 | 
 9 |     public void give(MM mm, Gift g) {
10 |         System.out.println(g + "gived!");
11 |     }
12 | 
13 | }
14 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v4/Gift.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v4;
2 | 
3 | public abstract class Gift {
4 |     GiftImpl impl;
5 | }
6 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v4/GiftImpl.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v4;
2 | 
3 | public class GiftImpl {
4 | }
5 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v4/MM.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v4;
2 | 
3 | public class MM {
4 |     String name;
5 | }
6 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v4/WarmGift.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v4;
2 | 
3 | public class WarmGift extends Gift {
4 |     public WarmGift(GiftImpl impl) {
5 |         this.impl = impl;
6 |     }
7 | }
8 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v4/WildGift.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.bridge.v4;
2 | 
3 | public class WildGift extends Gift {
4 |     public WildGift(GiftImpl impl) {
5 |         this.impl = impl;
6 |     }
7 | }
8 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/bridge/v4/readme:
--------------------------------------------------------------------------------
1 | 使用桥接模式：
2 | 分离抽象与具体实现，让他们可以独自发展
3 | Gift -> WarmGift ColdGift WildGift
4 | GiftImpl -> Flower Ring Car


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/builder/ComplexTerrainBuilder.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.builder;
 2 | 
 3 | public class ComplexTerrainBuilder implements TerrainBuilder {
 4 |     Terrain terrain = new Terrain();
 5 | 
 6 |     @Override
 7 |     public TerrainBuilder buildWall() {
 8 |         terrain.w = new Wall(10, 10, 50, 50);
 9 |         return this;
10 |     }
11 | 
12 |     @Override
13 |     public TerrainBuilder buildFort() {
14 |         terrain.f = new Fort(10, 10, 50, 50);
15 |         return this;
16 |     }
17 | 
18 |     @Override
19 |     public TerrainBuilder buildMine() {
20 |         terrain.m = new Mine(10, 10, 50, 50);
21 |         return this;
22 |     }
23 | 
24 |     @Override
25 |     public Terrain build() {
26 |         return terrain;
27 |     }
28 | }
29 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/builder/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.builder;
 2 | 
 3 | public class Main {
 4 |     public static void main(String[] args) {
 5 |         TerrainBuilder builder = new ComplexTerrainBuilder();
 6 |         Terrain t = builder.buildFort().buildMine().buildWall().build();
 7 |         //new Terrain(Wall w, Fort f, Mine m)
 8 |         //Effective Java
 9 | 
10 |         Person p = new Person.PersonBuilder()
11 |                 .basicInfo(1, "zhangsan", 18)
12 |                 //.score(20)
13 |                 .weight(200)
14 |                 //.loc("bj", "23")
15 |                 .build();
16 |     }
17 | }
18 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/builder/Person.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.builder;
 2 | 
 3 | public class Person {
 4 |     int id;
 5 |     String name;
 6 |     int age;
 7 |     double weight;
 8 |     int score;
 9 |     Location loc;
10 | 
11 |     private Person() {}
12 | 
13 |     public static class PersonBuilder {
14 |         Person p = new Person();
15 | 
16 |         public PersonBuilder basicInfo(int id, String name, int age) {
17 |             p.id = id;
18 |             p.name = name;
19 |             p.age = age;
20 |             return this;
21 |         }
22 | 
23 |         public PersonBuilder weight(double weight) {
24 |             p.weight = weight;
25 |             return this;
26 |         }
27 | 
28 |         public PersonBuilder score(int score) {
29 |             p.score = score;
30 |             return this;
31 |         }
32 | 
33 |         public PersonBuilder loc(String street, String roomNo) {
34 |             p.loc = new Location(street, roomNo);
35 |             return this;
36 |         }
37 | 
38 |         public Person build() {
39 |             return p;
40 |         }
41 |     }
42 | }
43 | 
44 | class Location {
45 |     String street;
46 |     String roomNo;
47 | 
48 |     public Location(String street, String roomNo) {
49 |         this.street = street;
50 |         this.roomNo = roomNo;
51 |     }
52 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/builder/Terrain.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.builder;
 2 | 
 3 | public class Terrain {
 4 |     Wall w;
 5 |     Fort f;
 6 |     Mine m;
 7 | }
 8 | 
 9 | class Wall {
10 |     int x, y, w, h;
11 | 
12 |     public Wall(int x, int y, int w, int h) {
13 |         this.x = x;
14 |         this.y = y;
15 |         this.w = w;
16 |         this.h = h;
17 |     }
18 | }
19 | 
20 | class Fort {
21 |     int x, y, w, h;
22 | 
23 |     public Fort(int x, int y, int w, int h) {
24 |         this.x = x;
25 |         this.y = y;
26 |         this.w = w;
27 |         this.h = h;
28 |     }
29 | 
30 | }
31 | 
32 | class Mine {
33 |     int x, y, w, h;
34 | 
35 |     public Mine(int x, int y, int w, int h) {
36 |         this.x = x;
37 |         this.y = y;
38 |         this.w = w;
39 |         this.h = h;
40 |     }
41 | }
42 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/builder/TerrainBuilder.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.builder;
2 | 
3 | public interface TerrainBuilder {
4 |     TerrainBuilder buildWall();
5 |     TerrainBuilder buildFort();
6 |     TerrainBuilder buildMine();
7 |     Terrain build();
8 | }
9 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/cglib/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.cglib;
 2 | 
 3 | import net.sf.cglib.proxy.Enhancer;
 4 | import net.sf.cglib.proxy.MethodInterceptor;
 5 | import net.sf.cglib.proxy.MethodProxy;
 6 | 
 7 | import java.lang.reflect.Method;
 8 | import java.util.Random;
 9 | 
10 | /**
11 |  * CGLIB实现动态代理不需要接口
12 |  */
13 | public class Main {
14 |     public static void main(String[] args) {
15 |         Enhancer enhancer = new Enhancer();
16 |         enhancer.setSuperclass(Tank.class);
17 |         enhancer.setCallback(new TimeMethodInterceptor());
18 |         Tank tank = (Tank)enhancer.create();
19 |         tank.move();
20 |     }
21 | }
22 | 
23 | class TimeMethodInterceptor implements MethodInterceptor {
24 | 
25 |     @Override
26 |     public Object intercept(Object o, Method method, Object[] objects, MethodProxy methodProxy) throws Throwable {
27 | 
28 |         System.out.println(o.getClass().getSuperclass().getName());
29 |         System.out.println("before");
30 |         Object result = null;
31 |         result = methodProxy.invokeSuper(o, objects);
32 |         System.out.println("after");
33 |         return result;
34 |     }
35 | }
36 | 
37 | class Tank {
38 |     public void move() {
39 |         System.out.println("Tank moving claclacla...");
40 |         try {
41 |             Thread.sleep(new Random().nextInt(10000));
42 |         } catch (InterruptedException e) {
43 |             e.printStackTrace();
44 |         }
45 |     }
46 | }
47 | 
48 | 
49 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/command/Command.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.command;
2 | 
3 | public abstract class Command {
4 |     public abstract void doit(); //exec run
5 |     public abstract void undo();
6 | }
7 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/command/Content.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.command;
2 | 
3 | public class Content {
4 |     String msg = "hello everybody ";
5 | 
6 | }
7 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/command/CopyCommand.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.command;
 2 | 
 3 | public class CopyCommand extends Command {
 4 |     Content c;
 5 |     public CopyCommand(Content c) {
 6 |         this.c = c;
 7 |     }
 8 | 
 9 |     @Override
10 |     public void doit() {
11 |         c.msg = c.msg + c.msg;
12 |     }
13 | 
14 |     @Override
15 |     public void undo() {
16 |         c.msg = c.msg.substring(0, c.msg.length()/2);
17 |     }
18 | }
19 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/command/DeleteCommand.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.command;
 2 | 
 3 | public class DeleteCommand extends Command {
 4 |     Content c;
 5 |     String deleted;
 6 |     public DeleteCommand(Content c) {
 7 |         this.c = c;
 8 |     }
 9 | 
10 |     @Override
11 |     public void doit() {
12 |         deleted = c.msg.substring(0, 5);
13 |         c.msg = c.msg.substring(5, c.msg.length());
14 |     }
15 | 
16 |     @Override
17 |     public void undo() {
18 |         c.msg = deleted + c.msg;
19 |     }
20 | }
21 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/command/InsertCommand.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.command;
 2 | 
 3 | public class InsertCommand extends Command {
 4 |     Content c;
 5 |     String strToInsert = "http://www.mashibing.com";
 6 |     public InsertCommand(Content c) {
 7 |         this.c = c;
 8 |     }
 9 | 
10 |     @Override
11 |     public void doit() {
12 |         c.msg = c.msg + strToInsert;
13 |     }
14 | 
15 |     @Override
16 |     public void undo() {
17 |         c.msg = c.msg.substring(0, c.msg.length()-strToInsert.length());
18 |     }
19 | }
20 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/command/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.command;
 2 | 
 3 | import java.util.ArrayList;
 4 | import java.util.List;
 5 | 
 6 | public class Main {
 7 |     public static void main(String[] args) {
 8 |         Content c = new Content();
 9 | 
10 |         Command insertCommand = new InsertCommand(c);
11 |         insertCommand.doit();
12 |         insertCommand.undo();
13 | 
14 |         Command copyCommand = new CopyCommand(c);
15 |         insertCommand.doit();
16 |         insertCommand.undo();
17 | 
18 |         Command deleteCommand = new DeleteCommand(c);
19 |         deleteCommand.doit();
20 |         deleteCommand.undo();
21 | 
22 |         List<Command> commands = new ArrayList<>();
23 |         commands.add(new InsertCommand(c));
24 |         commands.add(new CopyCommand(c));
25 |         commands.add(new DeleteCommand(c));
26 | 
27 |         for(Command comm : commands) {
28 |             comm.doit();
29 |         }
30 | 
31 | 
32 |         System.out.println(c.msg);
33 | 
34 |         for(int i= commands.size()-1; i>=0; i--) {
35 |             commands.get(i).undo();
36 |         }
37 | 
38 | 
39 |         System.out.println(c.msg);
40 |     }
41 | }
42 | 
43 | 
44 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/composite/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.composite;
 2 | 
 3 | import java.util.ArrayList;
 4 | import java.util.List;
 5 | 
 6 | abstract class Node {
 7 |     abstract public void p();
 8 | }
 9 | 
10 | class LeafNode extends Node {
11 |     String content;
12 |     public LeafNode(String content) {this.content = content;}
13 | 
14 |     @Override
15 |     public void p() {
16 |         System.out.println(content);
17 |     }
18 | }
19 | 
20 | class BranchNode extends Node {
21 |     List<Node> nodes = new ArrayList<>();
22 | 
23 |     String name;
24 |     public BranchNode(String name) {this.name = name;}
25 | 
26 |     @Override
27 |     public void p() {
28 |         System.out.println(name);
29 |     }
30 | 
31 |     public void add(Node n) {
32 |         nodes.add(n);
33 |     }
34 | }
35 | 
36 | 
37 | public class Main {
38 |     public static void main(String[] args) {
39 | 
40 |         BranchNode root = new BranchNode("root");
41 |         BranchNode chapter1 = new BranchNode("chapter1");
42 |         BranchNode chapter2 = new BranchNode("chapter2");
43 |         Node r1 = new LeafNode("r1");
44 |         Node c11 = new LeafNode("c11");
45 |         Node c12 = new LeafNode("c12");
46 |         BranchNode b21 = new BranchNode("section21");
47 |         Node c211 = new LeafNode("c211");
48 |         Node c212 = new LeafNode("c212");
49 | 
50 |         root.add(chapter1);
51 |         root.add(chapter2);
52 |         root.add(r1);
53 |         chapter1.add(c11);
54 |         chapter1.add(c12);
55 |         chapter2.add(b21);
56 |         b21.add(c211);
57 |         b21.add(c212);
58 | 
59 |         tree(root, 0);
60 | 
61 |     }
62 | 
63 |     static void tree(Node b, int depth) {
64 |         for(int i=0; i<depth; i++) System.out.print("--");
65 |         b.p();
66 | 
67 |         if(b instanceof BranchNode) {
68 |             for (Node n : ((BranchNode)b).nodes) {
69 |                 tree(n, depth + 1);
70 |             }
71 |         }
72 |     }
73 | }
74 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/cor/Main.java:
--------------------------------------------------------------------------------
  1 | package com.mashibing.dp.cor;
  2 | 
  3 | import java.util.ArrayList;
  4 | import java.util.List;
  5 | 
  6 | public class Main {
  7 |     public static void main(String[] args) {
  8 |         Msg msg = new Msg();
  9 |         msg.setMsg("大家好:)，<script>，欢迎访问 mashibing.com ，大家都是996 ");
 10 | 
 11 |         FilterChain fc = new FilterChain();
 12 |         fc.add(new HTMLFilter())
 13 |                 .add(new SensitiveFilter());
 14 | 
 15 |         FilterChain fc2 = new FilterChain();
 16 |         fc2.add(new FaceFilter()).add(new URLFilter());
 17 | 
 18 |         fc.add(fc2);
 19 | 
 20 |         fc.doFilter(msg);
 21 |         System.out.println(msg);
 22 | 
 23 |     }
 24 | }
 25 | 
 26 | class Msg {
 27 |     String name;
 28 |     String msg;
 29 | 
 30 |     public String getMsg() {
 31 |         return msg;
 32 |     }
 33 | 
 34 |     public void setMsg(String msg) {
 35 |         this.msg = msg;
 36 |     }
 37 | 
 38 |     @Override
 39 |     public String toString() {
 40 |         return "Msg{" +
 41 |                 "msg='" + msg + '\'' +
 42 |                 '}';
 43 |     }
 44 | }
 45 | 
 46 | interface Filter {
 47 |     boolean doFilter(Msg m);
 48 | }
 49 | 
 50 | class HTMLFilter implements Filter {
 51 |     @Override
 52 |     public boolean doFilter(Msg m) {
 53 |         String r = m.getMsg();
 54 |         r = r.replace('<', '[');
 55 |         r = r.replace('>', ']');
 56 |         m.setMsg(r);
 57 |         return true;
 58 |     }
 59 | }
 60 | 
 61 | class SensitiveFilter implements Filter {
 62 |     @Override
 63 |     public boolean doFilter(Msg m) {
 64 |         String r = m.getMsg();
 65 |         r = r.replaceAll("996", "955");
 66 |         m.setMsg(r);
 67 |         return false;
 68 |     }
 69 | }
 70 | 
 71 | class FaceFilter implements Filter {
 72 |     @Override
 73 |     public boolean doFilter(Msg m) {
 74 |         String r = m.getMsg();
 75 |         r = r.replace(":)", "^V^");
 76 |         m.setMsg(r);
 77 |         return true;
 78 |     }
 79 | }
 80 | 
 81 | class URLFilter implements Filter {
 82 |     @Override
 83 |     public boolean doFilter(Msg m) {
 84 |         String r = m.getMsg();
 85 |         r = r.replace("mashibing.com", "http://www.mashibing.com");
 86 |         m.setMsg(r);
 87 |         return true;
 88 |     }
 89 | }
 90 | 
 91 | class FilterChain implements Filter {
 92 |     private List<Filter> filters = new ArrayList<>();
 93 | 
 94 |     public FilterChain add(Filter f) {
 95 |         filters.add(f);
 96 |         return this;
 97 |     }
 98 | 
 99 |     public boolean doFilter(Msg m) {
100 |         for(Filter f : filters) {
101 |             if(!f.doFilter(m)) return false;
102 |         }
103 | 
104 |         return true;
105 |     }
106 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/cor/Main.java.bak:
--------------------------------------------------------------------------------
  1 | package com.mashibing.dp.cor;
  2 | 
  3 | import java.util.ArrayList;
  4 | import java.util.List;
  5 | 
  6 | public class Main {
  7 |     public static void main(String[] args) {
  8 | 
  9 | 
 10 |         Msg m = new Msg();
 11 |         m.setMessage("大家好:)，欢迎大家访问 mashibing.com ，大家伙儿基本996哦， <script>");
 12 | 
 13 |         //Filter[] filters = {new HTMLFilter(), new SensitiveFilter()};
 14 |         FilterChain fc = new FilterChain();
 15 |         fc.add(new HTMLFilter())
 16 |                 .add(new SensitiveFilter());
 17 |         FilterChain fc2 = new FilterChain();
 18 |         fc2.add(new FaceFilter()).add(new URLFilter());
 19 |         fc.add(fc2);
 20 | 
 21 |         fc.doFilter(m);
 22 | 
 23 |         System.out.println(m);
 24 |     }
 25 | }
 26 | 
 27 | class Msg {
 28 |     String username;
 29 |     String message;
 30 | 
 31 |     public String getMessage() {
 32 |         return message;
 33 |     }
 34 | 
 35 |     public void setMessage(String message) {
 36 |         this.message = message;
 37 |     }
 38 | 
 39 |     @Override
 40 |     public String toString() {
 41 |         return "Msg{" +
 42 |                 "message='" + message + '\'' +
 43 |                 '}';
 44 |     }
 45 | }
 46 | 
 47 | interface Filter { boolean doFilter(Msg m);}
 48 | 
 49 | class HTMLFilter implements Filter {
 50 |     @Override
 51 |     public boolean doFilter(Msg m) {
 52 |         String r = m.getMessage();
 53 |         r = r.replaceAll("<", "[").replaceAll(">", "]");
 54 |         m.setMessage(r);
 55 |         return true;
 56 |     }
 57 | }
 58 | 
 59 | class SensitiveFilter implements Filter {
 60 |     @Override
 61 |     public boolean doFilter(Msg m) {
 62 |         String r = m.getMessage();
 63 |         r = m.getMessage().replaceAll("996", "955");
 64 |         m.setMessage(r);
 65 |         return false;
 66 |     }
 67 | }
 68 | 
 69 | class FaceFilter implements Filter {
 70 |     @Override
 71 |     public boolean doFilter(Msg m) {
 72 |         String r = m.getMessage();
 73 |         r = m.getMessage().replaceAll(":\\)", "^V^");
 74 |         m.setMessage(r);
 75 |         return true;
 76 |     }
 77 | }
 78 | 
 79 | class URLFilter implements Filter {
 80 |     @Override
 81 |     public boolean doFilter(Msg m) {
 82 |         String r = m.getMessage();
 83 |         r = m.getMessage().replaceAll("mashibing.com", "http://www.mashibing.com");
 84 |         m.setMessage(r);
 85 |         return true;
 86 |     }
 87 | }
 88 | 
 89 | class FilterChain implements  Filter{
 90 |     private List<Filter> filters = new ArrayList<>();
 91 |     public FilterChain add(Filter filter) {
 92 |         this.filters.add(filter);
 93 |         return this;
 94 |     }
 95 | 
 96 |     public boolean doFilter(Msg m) {
 97 | 
 98 |         for(Filter f : filters) {
 99 |             if(!f.doFilter(m)) return false;
100 |         }
101 | 
102 |         return true;
103 |     }
104 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/cor/servlet/v1/Servlet_Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.cor.servlet.v1;
 2 | 
 3 | import java.util.ArrayList;
 4 | import java.util.List;
 5 | 
 6 | public class Servlet_Main {
 7 |     public static void main(String[] args) {
 8 |         Request request = new Request();
 9 |         request.str = "大家好:)，<script>，欢迎访问 mashibing.com ，大家都是996 ";
10 |         Response response = new Response();
11 |         response.str = "";
12 | 
13 |         FilterChain chain = new FilterChain();
14 |         chain.add(new HTMLFilter()).add(new SensitiveFilter());
15 |         chain.doFilter(request, response);
16 |         System.out.println(request.str);
17 | 
18 |     }
19 | }
20 | 
21 | interface Filter {
22 |     boolean doFilter(Request request,Response response);
23 | }
24 | 
25 | class HTMLFilter implements Filter {
26 |     @Override
27 |     public boolean doFilter(Request request,Response response) {
28 |         request.str = request.str.replaceAll("<", "[").replaceAll(">", "]");
29 |         return true;
30 |     }
31 | }
32 | 
33 | class Request {
34 |     String str;
35 | }
36 | 
37 | class Response {
38 |     String str;
39 | }
40 | 
41 | class SensitiveFilter implements Filter {
42 |     @Override
43 |     public boolean doFilter(Request request,Response response) {
44 |         request.str = request.str.replaceAll("996", "955");
45 |         return true;
46 |     }
47 | }
48 | 
49 | 
50 | 
51 | class FilterChain implements Filter {
52 |     List<Filter> filters = new ArrayList<>();
53 | 
54 |     public FilterChain add(Filter f) {
55 |         filters.add(f);
56 |         return this;
57 |     }
58 | 
59 |     public boolean doFilter(Request request,Response response) {
60 | 
61 |         for(Filter f : filters ){
62 |             f.doFilter(request, response);
63 |         }
64 |         return true;
65 |     }
66 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/cor/servlet/v2/Servlet_Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.cor.servlet.v2;
 2 | 
 3 | import java.util.ArrayList;
 4 | import java.util.List;
 5 | 
 6 | public class Servlet_Main {
 7 |     public static void main(String[] args) {
 8 |         Request request = new Request();
 9 |         request.str = "大家好:)，<script>，欢迎访问 mashibing.com ，大家都是996 ";
10 |         Response response = new Response();
11 |         response.str = "response";
12 | 
13 |         FilterChain chain = new FilterChain();
14 |         chain.add(new HTMLFilter()).add(new SensitiveFilter());
15 |         chain.doFilter(request, response);
16 |         System.out.println(request.str);
17 |         System.out.println(response.str);
18 | 
19 |     }
20 | }
21 | 
22 | interface Filter {
23 |     boolean doFilter(Request request, Response response);
24 | }
25 | 
26 | class HTMLFilter implements Filter {
27 |     @Override
28 |     public boolean doFilter(Request request, Response response) {
29 |         request.str = request.str.replaceAll("<", "[").replaceAll(">", "]");
30 |         response.str += "--HTMLFilter()";
31 |         return true;
32 |     }
33 | }
34 | 
35 | class Request {
36 |     String str;
37 | }
38 | 
39 | class Response {
40 |     String str;
41 | }
42 | 
43 | class SensitiveFilter implements Filter {
44 |     @Override
45 |     public boolean doFilter(Request request, Response response) {
46 |         request.str = request.str.replaceAll("996", "955");
47 |         response.str += "--SensitiveFilter()";
48 |         return true;
49 |     }
50 | }
51 | 
52 | 
53 | class FilterChain implements Filter {
54 |     List<Filter> filters = new ArrayList<>();
55 | 
56 |     public FilterChain add(Filter f) {
57 |         filters.add(f);
58 |         return this;
59 |     }
60 | 
61 |     public boolean doFilter(Request request, Response response) {
62 | 
63 |         for(Filter f : filters ){
64 |             f.doFilter(request, response);
65 |         }
66 |         return true;
67 |     }
68 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/cor/servlet/v2/readme:
--------------------------------------------------------------------------------
1 | 用最直观的方式处理response
2 | 直接将response的处理放在request的下面


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/cor/servlet/v3/Servlet_Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.cor.servlet.v3;
 2 | 
 3 | import java.util.ArrayList;
 4 | import java.util.List;
 5 | 
 6 | public class Servlet_Main {
 7 |     public static void main(String[] args) {
 8 |         Request request = new Request();
 9 |         request.str = "大家好:)，<script>，欢迎访问 mashibing.com ，大家都是996 ";
10 |         Response response = new Response();
11 |         response.str = "response";
12 | 
13 |         FilterChain chain = new FilterChain();
14 |         chain.add(new HTMLFilter()).add(new SensitiveFilter());
15 |         chain.doFilter(request, response, chain);
16 |         System.out.println(request.str);
17 |         System.out.println(response.str);
18 | 
19 |     }
20 | }
21 | 
22 | interface Filter {
23 |     boolean doFilter(Request request, Response response, FilterChain chain);
24 | }
25 | 
26 | class HTMLFilter implements Filter {
27 |     @Override
28 |     public boolean doFilter(Request request, Response response, FilterChain chain) {
29 |         request.str = request.str.replaceAll("<", "[").replaceAll(">", "]") + "HTMLFilter()";
30 |         chain.doFilter(request, response, chain);
31 |         response.str += "--HTMLFilter()";
32 |         return true;
33 |     }
34 | }
35 | 
36 | class Request {
37 |     String str;
38 | }
39 | 
40 | class Response {
41 |     String str;
42 | }
43 | 
44 | class SensitiveFilter implements Filter {
45 |     @Override
46 |     public boolean doFilter(Request request, Response response, FilterChain chain) {
47 |         request.str = request.str.replaceAll("996", "955") + " SensitiveFilter()";
48 |         chain.doFilter(request, response, chain);
49 |         response.str += "--SensitiveFilter()";
50 |         return true;
51 |     }
52 | }
53 | 
54 | 
55 | class FilterChain implements Filter {
56 |     List<Filter> filters = new ArrayList<>();
57 |     int index = 0;
58 | 
59 |     public FilterChain add(Filter f) {
60 |         filters.add(f);
61 |         return this;
62 |     }
63 | 
64 |     public boolean doFilter(Request request, Response response, FilterChain chain) {
65 |         if(index == filters.size()) return false;
66 |         Filter f = filters.get(index);
67 |         index ++;
68 | 
69 |         return f.doFilter(request, response, chain);
70 |     }
71 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/cor/servlet/v3/readme:
--------------------------------------------------------------------------------
1 | 在filterChain中处理加入位置的记录
2 | 同时在filter中加入第三个参数


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/cor/servlet/v4/Servlet_Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.cor.servlet.v4;
 2 | 
 3 | import java.util.ArrayList;
 4 | import java.util.List;
 5 | 
 6 | public class Servlet_Main {
 7 |     public static void main(String[] args) {
 8 |         Request request = new Request();
 9 |         request.str = "大家好:)，<script>，欢迎访问 mashibing.com ，大家都是996 ";
10 |         Response response = new Response();
11 |         response.str = "response";
12 | 
13 |         FilterChain chain = new FilterChain();
14 |         chain.add(new HTMLFilter()).add(new SensitiveFilter());
15 |         chain.doFilter(request, response);
16 |         System.out.println(request.str);
17 |         System.out.println(response.str);
18 | 
19 |     }
20 | }
21 | 
22 | interface Filter {
23 |     void doFilter(Request request, Response response, FilterChain chain);
24 | }
25 | 
26 | class HTMLFilter implements Filter {
27 |     @Override
28 |     public void doFilter(Request request, Response response, FilterChain chain) {
29 |         request.str = request.str.replaceAll("<", "[").replaceAll(">", "]") + "HTMLFilter()";
30 |         chain.doFilter(request, response);
31 |         response.str += "--HTMLFilter()";
32 | 
33 |     }
34 | }
35 | 
36 | class Request {
37 |     String str;
38 | }
39 | 
40 | class Response {
41 |     String str;
42 | }
43 | 
44 | class SensitiveFilter implements Filter {
45 |     @Override
46 |     public void doFilter(Request request, Response response, FilterChain chain) {
47 |         request.str = request.str.replaceAll("996", "955") + " SensitiveFilter()";
48 |         chain.doFilter(request, response);
49 |         response.str += "--SensitiveFilter()";
50 | 
51 |     }
52 | }
53 | 
54 | 
55 | class FilterChain {
56 |     List<Filter> filters = new ArrayList<>();
57 |     int index = 0;
58 | 
59 |     public FilterChain add(Filter f) {
60 |         filters.add(f);
61 |         return this;
62 |     }
63 | 
64 |     public void doFilter(Request request, Response response) {
65 |         if(index == filters.size()) return;
66 |         Filter f = filters.get(index);
67 |         index ++;
68 | 
69 |         f.doFilter(request, response, this);
70 |     }
71 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/cor/servlet/v4/readme:
--------------------------------------------------------------------------------
1 | 完全模式Serverlet中的FilterChain
2 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/decorator/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.decorator;
 2 | 
 3 | import java.io.*;
 4 | 
 5 | public class Main {
 6 |     public static void main(String[] args) throws Exception {
 7 |         File f = new File("c:/work/test.data");
 8 |         FileOutputStream fos = new FileOutputStream(f);
 9 |         OutputStreamWriter osw = new OutputStreamWriter(fos);
10 |         BufferedWriter bw = new BufferedWriter(osw);
11 |         bw.write("http://www.mashibing.com");
12 |         bw.flush();
13 |         bw.close();
14 |     }
15 | }
16 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/decorator/readme:
--------------------------------------------------------------------------------
1 | OutputStream
2 | OutputStreamWriter
3 | BufferedWriter


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/factorymethod/Broom.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.factorymethod;
 2 | 
 3 | public class Broom implements Moveable{
 4 | 
 5 |     @Override
 6 |     public void go() {
 7 |         System.out.println("broom flying chuachuachua .....");
 8 |     }
 9 | }
10 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/factorymethod/Car.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.factorymethod;
2 | 
3 | public class Car implements  Moveable {
4 | 
5 |     public void go() {
6 |         System.out.println("Car go wuwuwuwuw....");
7 |     }
8 | }
9 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/factorymethod/CarFactory.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.factorymethod;
2 | 
3 | public class CarFactory {
4 |     public Moveable create() {
5 |         System.out.println("a car created!");
6 |         return new Car();
7 |     }
8 | }
9 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/factorymethod/Main.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.factorymethod;
2 | 
3 | public class Main {
4 |     public static void main(String[] args) {
5 |         Moveable m = new CarFactory().create();
6 |         m.go();
7 |     }
8 | }
9 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/factorymethod/Moveable.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.factorymethod;
2 | 
3 | public interface Moveable {
4 |     void go();
5 | }
6 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/factorymethod/Plane.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.factorymethod;
2 | 
3 | public class Plane implements Moveable {
4 |     public void go() {
5 |         System.out.println("plane flying shushua....");
6 |     }
7 | }
8 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/factorymethod/SimpleVehicleFactory.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.factorymethod;
 2 | 
 3 | /**
 4 |  * 简单工厂的可扩展性不好
 5 |  */
 6 | public class SimpleVehicleFactory {
 7 |     public Car createCar() {
 8 |         //before processing
 9 |         return new Car();
10 |     }
11 | 
12 |     public Broom createBroom() {
13 |         return new Broom();
14 |     }
15 | }
16 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/flyweight/BulletPool.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.flyweight;
 2 | 
 3 | import java.util.ArrayList;
 4 | import java.util.List;
 5 | import java.util.UUID;
 6 | 
 7 | class Bullet{
 8 |     public UUID id = UUID.randomUUID();
 9 |     boolean living = true;
10 | 
11 |     @Override
12 |     public String toString() {
13 |         return "Bullet{" +
14 |                 "id=" + id +
15 |                 '}';
16 |     }
17 | }
18 | 
19 | public class BulletPool {
20 |     List<Bullet> bullets = new ArrayList<>();
21 |     {
22 |         for(int i=0; i<5; i++) bullets.add(new Bullet());
23 |     }
24 | 
25 |     public Bullet getBullet() {
26 |         for(int i=0; i<bullets.size(); i++) {
27 |             Bullet b = bullets.get(i);
28 |             if(!b.living) return b;
29 |         }
30 | 
31 |         return new Bullet();
32 |     }
33 | 
34 |     public static void main(String[] args) {
35 |         BulletPool bp = new BulletPool();
36 | 
37 |         for(int i=0; i<10; i++) {
38 |             Bullet b = bp.getBullet();
39 |             System.out.println(b);
40 |         }
41 |     }
42 | 
43 | }
44 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/flyweight/TestString.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.flyweight;
 2 | 
 3 | public class TestString {
 4 |     public static void main(String[] args) {
 5 |         String s1 = "abc";
 6 |         String s2 = "abc";
 7 |         String s3 = new String("abc");
 8 |         String s4 = new String("abc");
 9 | 
10 |         System.out.println(s1 == s2); //true
11 |         System.out.println(s1 == s3); //false
12 |         System.out.println(s3 == s4);
13 |         System.out.println(s3.intern() == s1);
14 |         System.out.println(s3.intern() == s4.intern());
15 |     }
16 | }
17 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/intepreter/readme:
--------------------------------------------------------------------------------
1 | 脚本语言解释器


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/memento/readme:
--------------------------------------------------------------------------------
1 | 记录对象的某个瞬间
2 | 类似照片


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/observer/v1/Main1.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.observer.v1;
 2 | 
 3 | /**
 4 |  * 披着面向对象外衣的面向过程
 5 |  */
 6 | 
 7 | public class Main1 {
 8 |     public static void main(String[] args) {
 9 |         boolean cry = false;
10 | 
11 |         while(!cry) {
12 |             //进行处理
13 |         }
14 |     }
15 | }
16 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/observer/v10/readme:
--------------------------------------------------------------------------------
1 | 认识javascript event对象
2 | 
3 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/observer/v11/readme:
--------------------------------------------------------------------------------
1 | 认识javascript event对象
2 | 
3 | 在很多系统中，Observer模式往往和责任链共同负责对于事件的处理，
4 | 其中的某一个observer负责是否将事件进一步传递
5 | 


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/src/main/java/com/mashibing/dp/observer/v2/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.observer.v2;
 2 | 
 3 | /**
 4 |  * 面向对象的傻等
 5 |  */
 6 | 
 7 | class Child {
 8 |     private boolean cry = false;
 9 | 
10 |     public boolean isCry() {
11 |         return cry;
12 |     }
13 | 
14 |     public void wakeUp() {
15 |         System.out.println("Waked Up! Crying wuwuwuwu...");
16 |         cry = true;
17 |     }
18 | }
19 | 
20 | public class Main {
21 |     public static void main(String[] args) {
22 |         Child child = new Child();
23 |         while(!child.isCry()) {
24 |             try {
25 |                 Thread.sleep(1000);
26 |             } catch (InterruptedException e) {
27 |                 e.printStackTrace();
28 |             }
29 |             System.out.println("observing...");
30 |         }
31 | 
32 |     }
33 | }
34 | 


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/src/main/java/com/mashibing/dp/observer/v3/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.observer.v3;
 2 | 
 3 | /**
 4 |  * 加入观察者
 5 |  */
 6 | 
 7 | class Child {
 8 |     private boolean cry = false;
 9 |     private Dad d = new Dad();
10 | 
11 |     public boolean isCry() {
12 |         return cry;
13 |     }
14 | 
15 |     public void wakeUp() {
16 |         cry = true;
17 |         d.feed();
18 |     }
19 | }
20 | 
21 | class Dad {
22 |     public void feed() {
23 |         System.out.println("dad feeding...");
24 |     }
25 | }
26 | 
27 | public class Main {
28 |     public static void main(String[] args) {
29 |         Child c = new Child();
30 |         //do sth
31 |         c.wakeUp();
32 |     }
33 | }
34 | 


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/src/main/java/com/mashibing/dp/observer/v4/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.observer.v4;
 2 | 
 3 | /**
 4 |  * 加入多个观察者
 5 |  */
 6 | 
 7 | class Child {
 8 |     private boolean cry = false;
 9 |     private Dad dad = new Dad();
10 |     private Mum mum = new Mum();
11 |     private Dog dog = new Dog();
12 | 
13 | 
14 |     public boolean isCry() {
15 |         return cry;
16 |     }
17 | 
18 |     public void wakeUp() {
19 |         cry = true;
20 |         dad.feed();
21 |         dog.wang();
22 |         mum.hug();
23 |     }
24 | }
25 | 
26 | class Dad {
27 |     public void feed() {
28 |         System.out.println("dad feeding...");
29 |     }
30 | }
31 | 
32 | class Mum {
33 |     public void hug() {
34 |         System.out.println("mum hugging...");
35 |     }
36 | }
37 | 
38 | class Dog {
39 |     public void wang() {
40 |         System.out.println("dog wang...");
41 |     }
42 | }
43 | 
44 | public class Main {
45 |     public static void main(String[] args) {
46 |         Child c = new Child();
47 |         //do sth
48 |         c.wakeUp();
49 |     }
50 | }
51 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/observer/v5/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.observer.v5;
 2 | 
 3 | import java.util.ArrayList;
 4 | import java.util.List;
 5 | 
 6 | /**
 7 |  * 分离观察者与被观察者
 8 |  */
 9 | 
10 | class Child {
11 |     private boolean cry = false;
12 |     private List<Observer> observers = new ArrayList<>();
13 | 
14 |     {
15 |         observers.add(new Dad());
16 |         observers.add(new Mum());
17 |         observers.add(new Dog());
18 |     }
19 | 
20 | 
21 |     public boolean isCry() {
22 |         return cry;
23 |     }
24 | 
25 |     public void wakeUp() {
26 |         cry = true;
27 |         for(Observer o : observers) {
28 |             o.actionOnWakeUp();
29 |         }
30 |     }
31 | }
32 | 
33 | interface Observer {
34 |     void actionOnWakeUp();
35 | }
36 | 
37 | class Dad implements Observer {
38 |     public void feed() {
39 |         System.out.println("dad feeding...");
40 |     }
41 | 
42 |     @Override
43 |     public void actionOnWakeUp() {
44 |         feed();
45 |     }
46 | }
47 | 
48 | class Mum implements Observer {
49 |     public void hug() {
50 |         System.out.println("mum hugging...");
51 |     }
52 | 
53 |     @Override
54 |     public void actionOnWakeUp() {
55 |         hug();
56 |     }
57 | }
58 | 
59 | class Dog implements Observer {
60 |     public void wang() {
61 |         System.out.println("dog wang...");
62 |     }
63 | 
64 |     @Override
65 |     public void actionOnWakeUp() {
66 |         wang();
67 |     }
68 | }
69 | 
70 | public class Main {
71 |     public static void main(String[] args) {
72 |         Child c = new Child();
73 |         //do sth
74 |         c.wakeUp();
75 |     }
76 | }
77 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/observer/v6/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.observer.v6;
 2 | 
 3 | import java.util.ArrayList;
 4 | import java.util.List;
 5 | 
 6 | /**
 7 |  * 有很多时候，观察者需要根据事件的具体情况来进行处理
 8 |  */
 9 | 
10 | class Child {
11 |     private boolean cry = false;
12 |     private List<Observer> observers = new ArrayList<>();
13 | 
14 |     {
15 |         observers.add(new Dad());
16 |         observers.add(new Mum());
17 |         observers.add(new Dog());
18 |     }
19 | 
20 | 
21 |     public boolean isCry() {
22 |         return cry;
23 |     }
24 | 
25 |     public void wakeUp() {
26 |         cry = true;
27 | 
28 |         wakeUpEvent event = new wakeUpEvent(System.currentTimeMillis(), "bed");
29 | 
30 |         for(Observer o : observers) {
31 |             o.actionOnWakeUp(event);
32 |         }
33 |     }
34 | }
35 | 
36 | //事件类 fire Event
37 | class wakeUpEvent{
38 |     long timestamp;
39 |     String loc;
40 | 
41 |     public wakeUpEvent(long timestamp, String loc) {
42 |         this.timestamp = timestamp;
43 |         this.loc = loc;
44 |     }
45 | }
46 | 
47 | interface Observer {
48 |     void actionOnWakeUp(wakeUpEvent event);
49 | }
50 | 
51 | class Dad implements Observer {
52 |     public void feed() {
53 |         System.out.println("dad feeding...");
54 |     }
55 | 
56 |     @Override
57 |     public void actionOnWakeUp(wakeUpEvent event) {
58 |         feed();
59 |     }
60 | }
61 | 
62 | class Mum implements Observer {
63 |     public void hug() {
64 |         System.out.println("mum hugging...");
65 |     }
66 | 
67 |     @Override
68 |     public void actionOnWakeUp(wakeUpEvent event) {
69 |         hug();
70 |     }
71 | }
72 | 
73 | class Dog implements Observer {
74 |     public void wang() {
75 |         System.out.println("dog wang...");
76 |     }
77 | 
78 |     @Override
79 |     public void actionOnWakeUp(wakeUpEvent event) {
80 |         wang();
81 |     }
82 | }
83 | 
84 | public class Main {
85 |     public static void main(String[] args) {
86 |         Child c = new Child();
87 |         //do sth
88 |         c.wakeUp();
89 |     }
90 | }
91 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/observer/v7/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.observer.v7;
 2 | 
 3 | import java.util.ArrayList;
 4 | import java.util.List;
 5 | 
 6 | /**
 7 |  * 有很多时候，观察者需要根据事件的具体情况来进行处理
 8 |  * 大多数时候，我们处理事件的时候，需要事件源对象
 9 |  */
10 | 
11 | class Child {
12 |     private boolean cry = false;
13 |     private List<Observer> observers = new ArrayList<>();
14 | 
15 |     {
16 |         observers.add(new Dad());
17 |         observers.add(new Mum());
18 |         observers.add(new Dog());
19 |     }
20 | 
21 | 
22 |     public boolean isCry() {
23 |         return cry;
24 |     }
25 | 
26 |     public void wakeUp() {
27 |         cry = true;
28 | 
29 |         wakeUpEvent event = new wakeUpEvent(System.currentTimeMillis(), "bed", this);
30 | 
31 |         for(Observer o : observers) {
32 |             o.actionOnWakeUp(event);
33 |         }
34 |     }
35 | }
36 | 
37 | class wakeUpEvent{
38 |     long timestamp;
39 |     String loc;
40 |     Child source;
41 | 
42 |     public wakeUpEvent(long timestamp, String loc, Child source) {
43 |         this.timestamp = timestamp;
44 |         this.loc = loc;
45 |         this.source = source;
46 |     }
47 | }
48 | 
49 | interface Observer {
50 |     void actionOnWakeUp(wakeUpEvent event);
51 | }
52 | 
53 | class Dad implements Observer {
54 |     public void feed() {
55 |         System.out.println("dad feeding...");
56 |     }
57 | 
58 |     @Override
59 |     public void actionOnWakeUp(wakeUpEvent event) {
60 |         feed();
61 |     }
62 | }
63 | 
64 | class Mum implements Observer {
65 |     public void hug() {
66 |         System.out.println("mum hugging...");
67 |     }
68 | 
69 |     @Override
70 |     public void actionOnWakeUp(wakeUpEvent event) {
71 |         hug();
72 |     }
73 | }
74 | 
75 | class Dog implements Observer {
76 |     public void wang() {
77 |         System.out.println("dog wang...");
78 |     }
79 | 
80 |     @Override
81 |     public void actionOnWakeUp(wakeUpEvent event) {
82 |         wang();
83 |     }
84 | }
85 | 
86 | public class Main {
87 |     public static void main(String[] args) {
88 |         Child c = new Child();
89 |         //do sth
90 |         c.wakeUp();
91 |     }
92 | }
93 | 


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/src/main/java/com/mashibing/dp/observer/v8/Main.java:
--------------------------------------------------------------------------------
  1 | package com.mashibing.dp.observer.v8;
  2 | 
  3 | import java.util.ArrayList;
  4 | import java.util.List;
  5 | 
  6 | /**
  7 |  * 有很多时候，观察者需要根据事件的具体情况来进行处理
  8 |  * 大多数时候，我们处理事件的时候，需要事件源对象
  9 |  * 事件也可以形成继承体系
 10 |  */
 11 | 
 12 | class Child {
 13 |     private boolean cry = false;
 14 |     private List<Observer> observers = new ArrayList<>();
 15 | 
 16 |     {
 17 |         observers.add(new Dad());
 18 |         observers.add(new Mum());
 19 |         observers.add(new Dog());
 20 |         observers.add((e)->{
 21 |             System.out.println("ppp");
 22 |         });
 23 |         //hook callback function
 24 |     }
 25 | 
 26 | 
 27 |     public boolean isCry() {
 28 |         return cry;
 29 |     }
 30 | 
 31 |     public void wakeUp() {
 32 |         cry = true;
 33 | 
 34 |         wakeUpEvent event = new wakeUpEvent(System.currentTimeMillis(), "bed", this);
 35 | 
 36 |         for(Observer o : observers) {
 37 |             o.actionOnWakeUp(event);
 38 |         }
 39 |     }
 40 | }
 41 | 
 42 | abstract class Event<T> {
 43 |     abstract T getSource();
 44 | }
 45 | 
 46 | class wakeUpEvent extends Event<Child>{
 47 |     long timestamp;
 48 |     String loc;
 49 |     Child source;
 50 | 
 51 |     public wakeUpEvent(long timestamp, String loc, Child source) {
 52 |         this.timestamp = timestamp;
 53 |         this.loc = loc;
 54 |         this.source = source;
 55 |     }
 56 | 
 57 |     @Override
 58 |     Child getSource() {
 59 |         return source;
 60 |     }
 61 | }
 62 | 
 63 | interface Observer {
 64 |     void actionOnWakeUp(wakeUpEvent event);
 65 | }
 66 | 
 67 | class Dad implements Observer {
 68 |     public void feed() {
 69 |         System.out.println("dad feeding...");
 70 |     }
 71 | 
 72 |     @Override
 73 |     public void actionOnWakeUp(wakeUpEvent event) {
 74 |         feed();
 75 |     }
 76 | }
 77 | 
 78 | class Mum implements Observer {
 79 |     public void hug() {
 80 |         System.out.println("mum hugging...");
 81 |     }
 82 | 
 83 |     @Override
 84 |     public void actionOnWakeUp(wakeUpEvent event) {
 85 |         hug();
 86 |     }
 87 | }
 88 | 
 89 | class Dog implements Observer {
 90 |     public void wang() {
 91 |         System.out.println("dog wang...");
 92 |     }
 93 | 
 94 |     @Override
 95 |     public void actionOnWakeUp(wakeUpEvent event) {
 96 |         wang();
 97 |     }
 98 | }
 99 | 
100 | public class Main {
101 |     public static void main(String[] args) {
102 |         Child c = new Child();
103 |         //do sth
104 |         c.wakeUp();
105 |     }
106 | }
107 | 


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/src/main/java/com/mashibing/dp/observer/v9/Test.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.observer.v9;
 2 | 
 3 | import java.util.ArrayList;
 4 | import java.util.List;
 5 | 
 6 | 
 7 | public class Test {
 8 | 	public static void main(String[] args) {
 9 | 		Button b = new Button();
10 | 		b.addActionListener(new MyActionListener());
11 | 		b.addActionListener(new MyActionListener2());
12 | 		b.buttonPressed();
13 | 	}
14 | }
15 | 
16 | class Button {
17 | 	
18 | 	private List<ActionListener> actionListeners = new ArrayList<ActionListener>();
19 | 	
20 | 	public void buttonPressed() {
21 | 		ActionEvent e = new ActionEvent(System.currentTimeMillis(),this);
22 | 		for(int i=0; i<actionListeners.size(); i++) {
23 | 			ActionListener l = actionListeners.get(i);
24 | 			l.actionPerformed(e);
25 | 		}
26 | 	}
27 | 	
28 | 	public void addActionListener(ActionListener l) {
29 | 		actionListeners.add(l);
30 | 	}
31 | }
32 | 
33 | interface ActionListener {
34 | 	public void actionPerformed(ActionEvent e);
35 | }
36 | 
37 | class MyActionListener implements ActionListener {
38 | 
39 | 	public void actionPerformed(ActionEvent e) {
40 | 		System.out.println("button pressed!");
41 | 	}
42 | 	
43 | }
44 | 
45 | class MyActionListener2 implements ActionListener {
46 | 
47 | 	public void actionPerformed(ActionEvent e) {
48 | 		System.out.println("button pressed 2!");
49 | 	}
50 | 	
51 | }
52 | 
53 | class ActionEvent {
54 | 	
55 | 	long when;
56 | 	Object source;
57 | 	
58 | 	public ActionEvent(long when, Object source) {
59 | 		super();
60 | 		this.when = when;
61 | 		this.source = source;
62 | 	}
63 | 	
64 | 	
65 | 	public long getWhen() {
66 | 		return when;
67 | 	}
68 | 
69 | 	public Object getSource() {
70 | 		return source;
71 | 	}
72 | 	
73 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/observer/v9/TestFrame.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.observer.v9;
 2 | 
 3 | import java.awt.Button;
 4 | import java.awt.Frame;
 5 | import java.awt.event.ActionEvent;
 6 | import java.awt.event.ActionListener;
 7 | import java.awt.event.WindowAdapter;
 8 | import java.awt.event.WindowEvent;
 9 | 
10 | public class TestFrame extends Frame {
11 | 	public void launch() {
12 | 		Button b = new Button("press me");
13 | 		b.addActionListener(new MyActionListener());
14 | 		b.addActionListener(new MyActionListener2());
15 | 		this.add(b);
16 | 		this.pack();
17 | 		
18 | 		this.addWindowListener(new WindowAdapter(){
19 | 
20 | 			@Override
21 | 			public void windowClosing(WindowEvent e) {
22 | 				System.exit(0);
23 | 			}
24 | 			
25 | 		});
26 | 		this.setLocation(400, 400);
27 | 		this.setVisible(true);
28 | 	}
29 | 	
30 | 	public static void main(String[] args) {
31 | 		new TestFrame().launch();
32 | 	}
33 | 	
34 | 	private class MyActionListener implements ActionListener { //Observer
35 | 
36 | 		public void actionPerformed(ActionEvent e) {
37 | 			((Button)e.getSource()).setLabel("press me again!");
38 | 			System.out.println("button pressed!");
39 | 		}
40 | 		
41 | 	}
42 | 	
43 | 	private class MyActionListener2 implements ActionListener {
44 | 
45 | 		public void actionPerformed(ActionEvent e) {
46 | 			System.out.println("button pressed 2!");
47 | 		}
48 | 		
49 | 	}
50 | }
51 | 


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/src/main/java/com/mashibing/dp/prototype/v1/Test.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.prototype.v1;
 2 | 
 3 | /**
 4 |  * 浅克隆
 5 |  */
 6 | 
 7 | public class Test {
 8 |     public static void main(String[] args) throws Exception {
 9 |         Person p1 = new Person();
10 |         Person p2 = (Person)p1.clone();
11 |         System.out.println(p2.age + " " + p2.score);
12 |         System.out.println(p2.loc);
13 | 
14 |         System.out.println(p1.loc == p2.loc);
15 |         p1.loc.street = "sh";
16 |         System.out.println(p2.loc);
17 | 
18 |     }
19 | }
20 | 
21 | class Person implements Cloneable {
22 |     int age = 8;
23 |     int score = 100;
24 | 
25 |     Location loc = new Location("bj", 22);
26 |     @Override
27 |     public Object clone() throws CloneNotSupportedException {
28 |         return super.clone();
29 |     }
30 | }
31 | 
32 | class Location {
33 |     String street;
34 |     int roomNo;
35 | 
36 |     @Override
37 |     public String toString() {
38 |         return "Location{" +
39 |                 "street='" + street + '\'' +
40 |                 ", roomNo=" + roomNo +
41 |                 '}';
42 |     }
43 | 
44 |     public Location(String street, int roomNo) {
45 |         this.street = street;
46 |         this.roomNo = roomNo;
47 |     }
48 | }
49 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/prototype/v2/Test.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.prototype.v2;
 2 | 
 3 | /**
 4 |  * 深克隆的处理
 5 |  */
 6 | public class Test {
 7 |     public static void main(String[] args) throws Exception {
 8 |         Person p1 = new Person();
 9 |         Person p2 = (Person)p1.clone();
10 |         System.out.println(p2.age + " " + p2.score);
11 |         System.out.println(p2.loc);
12 | 
13 |         System.out.println(p1.loc == p2.loc);
14 |         p1.loc.street = "sh";
15 |         System.out.println(p2.loc);
16 | 
17 | 
18 | 
19 |     }
20 | }
21 | 
22 | class Person implements Cloneable {
23 |     int age = 8;
24 |     int score = 100;
25 | 
26 |     Location loc = new Location("bj", 22);
27 |     @Override
28 |     public Object clone() throws CloneNotSupportedException {
29 |         Person p = (Person)super.clone();
30 |         p.loc = (Location)loc.clone();
31 |         return p;
32 |     }
33 | }
34 | 
35 | class Location implements Cloneable {
36 |     String street;
37 |     int roomNo;
38 | 
39 |     @Override
40 |     public String toString() {
41 |         return "Location{" +
42 |                 "street='" + street + '\'' +
43 |                 ", roomNo=" + roomNo +
44 |                 '}';
45 |     }
46 | 
47 |     public Location(String street, int roomNo) {
48 |         this.street = street;
49 |         this.roomNo = roomNo;
50 |     }
51 | 
52 |     @Override
53 |     public Object clone() throws CloneNotSupportedException {
54 |         return super.clone();
55 |     }
56 | }
57 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/prototype/v3/Test.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.prototype.v3;
 2 | 
 3 | /**
 4 |  * String需要进一步深克隆吗？
 5 |  */
 6 | public class Test {
 7 |     public static void main(String[] args) throws Exception {
 8 |         Person p1 = new Person();
 9 |         Person p2 = (Person)p1.clone();
10 |         System.out.println(p2.age + " " + p2.score);
11 |         System.out.println(p2.loc);
12 | 
13 |         System.out.println(p1.loc == p2.loc);
14 |         p1.loc.street = "sh";
15 |         System.out.println(p2.loc);
16 | 
17 |         p1.loc.street.replace("sh", "sz");
18 |         System.out.println(p2.loc.street);
19 |     }
20 | }
21 | 
22 | class Person implements Cloneable {
23 |     int age = 8;
24 |     int score = 100;
25 | 
26 |     Location loc = new Location("bj", 22);
27 |     @Override
28 |     public Object clone() throws CloneNotSupportedException {
29 |         Person p = (Person)super.clone();
30 |         p.loc = (Location)loc.clone();
31 |         return p;
32 |     }
33 | }
34 | 
35 | class Location implements Cloneable {
36 |     String street;
37 |     int roomNo;
38 | 
39 |     @Override
40 |     public String toString() {
41 |         return "Location{" +
42 |                 "street='" + street + '\'' +
43 |                 ", roomNo=" + roomNo +
44 |                 '}';
45 |     }
46 | 
47 |     public Location(String street, int roomNo) {
48 |         this.street = street;
49 |         this.roomNo = roomNo;
50 |     }
51 | 
52 |     @Override
53 |     public Object clone() throws CloneNotSupportedException {
54 |         return super.clone();
55 |     }
56 | }
57 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/prototype/v4/Test.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.prototype.v4;
 2 | 
 3 | /**
 4 |  * String需要进一步深克隆吗？
 5 |  */
 6 | public class Test {
 7 |     public static void main(String[] args) throws Exception {
 8 |         Person p1 = new Person();
 9 |         Person p2 = (Person)p1.clone();
10 |         System.out.println("p1.loc == p2.loc? " + (p1.loc == p2.loc));
11 | 
12 |         p1.loc.street.reverse();
13 |         System.out.println(p2.loc.street);
14 |     }
15 | }
16 | 
17 | class Person implements Cloneable {
18 |     int age = 8;
19 |     int score = 100;
20 | 
21 |     Location loc = new Location(new StringBuilder("bj"), 22);
22 |     @Override
23 |     public Object clone() throws CloneNotSupportedException {
24 |         Person p = (Person)super.clone();
25 |         p.loc = (Location)loc.clone();
26 |         return p;
27 |     }
28 | }
29 | 
30 | class Location implements Cloneable {
31 |     StringBuilder street;
32 |     int roomNo;
33 | 
34 |     @Override
35 |     public String toString() {
36 |         return "Location{" +
37 |                 "street='" + street + '\'' +
38 |                 ", roomNo=" + roomNo +
39 |                 '}';
40 |     }
41 | 
42 |     public Location(StringBuilder street, int roomNo) {
43 |         this.street = street;
44 |         this.roomNo = roomNo;
45 |     }
46 | 
47 |     @Override
48 |     public Object clone() throws CloneNotSupportedException {
49 |         return super.clone();
50 |     }
51 | }
52 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/proxy/v01/Tank.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.proxy.v01;
 2 | 
 3 | import java.util.Random;
 4 | 
 5 | /**
 6 |  * 问题：我想记录坦克的移动时间
 7 |  */
 8 | public class Tank implements Movable {
 9 | 
10 |     /**
11 |      * 模拟坦克移动了一段儿时间
12 |      */
13 |     @Override
14 |     public void move() {
15 |         System.out.println("Tank moving claclacla...");
16 |         try {
17 |             Thread.sleep(new Random().nextInt(10000));
18 |         } catch (InterruptedException e) {
19 |             e.printStackTrace();
20 |         }
21 |     }
22 | }
23 | 
24 | interface Movable {
25 |     void move();
26 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/proxy/v02/Tank.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.proxy.v02;
 2 | 
 3 | import java.util.Random;
 4 | 
 5 | /**
 6 |  * 问题：我想记录坦克的移动时间
 7 |  * 最简单的办法：修改代码，记录时间
 8 |  * 问题2：如果无法改变方法源码呢？ benchmark
 9 |  */
10 | public class Tank implements Movable {
11 | 
12 |     /**
13 |      * 模拟坦克移动了一段儿时间
14 |      */
15 |     @Override
16 |     public void move() {
17 |         long start = System.currentTimeMillis();
18 | 
19 |         System.out.println("Tank moving claclacla...");
20 |         try {
21 |             Thread.sleep(new Random().nextInt(10000));
22 |         } catch (InterruptedException e) {
23 |             e.printStackTrace();
24 |         }
25 | 
26 |         long end = System.currentTimeMillis();
27 |         System.out.println(end - start);
28 |     }
29 | 
30 |     public static void main(String[] args) {
31 |         new Tank().move();
32 |     }
33 | }
34 | 
35 | interface Movable {
36 |     void move();
37 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/proxy/v03/Tank.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.proxy.v03;
 2 | 
 3 | import java.util.Random;
 4 | 
 5 | /**
 6 |  * 问题：我想记录坦克的移动时间
 7 |  * 最简单的办法：修改代码，记录时间
 8 |  * 问题2：如果无法改变方法源码呢？
 9 |  */
10 | public class Tank implements Movable {
11 | 
12 |     /**
13 |      * 模拟坦克移动了一段儿时间
14 |      */
15 |     @Override
16 |     public void move() {
17 |         long start = System.currentTimeMillis();
18 | 
19 |         System.out.println("Tank moving claclacla...");
20 |         try {
21 |             Thread.sleep(new Random().nextInt(10000));
22 |         } catch (InterruptedException e) {
23 |             e.printStackTrace();
24 |         }
25 | 
26 |         long end = System.currentTimeMillis();
27 |         System.out.println(end - start);
28 |     }
29 | 
30 |     public static void main(String[] args) {
31 |         new Tank().move();
32 |     }
33 | }
34 | 
35 | interface Movable {
36 |     void move();
37 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/proxy/v04/Tank.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.proxy.v04;
 2 | 
 3 | import java.util.Random;
 4 | 
 5 | /**
 6 |  * 问题：我想记录坦克的移动时间
 7 |  * 最简单的办法：修改代码，记录时间
 8 |  * 问题2：如果无法改变方法源码呢？
 9 |  * 用继承？
10 |  */
11 | public class Tank implements Movable {
12 | 
13 |     /**
14 |      * 模拟坦克移动了一段儿时间
15 |      */
16 |     @Override
17 |     public void move() {
18 |         System.out.println("Tank moving claclacla...");
19 |         try {
20 |             Thread.sleep(new Random().nextInt(10000));
21 |         } catch (InterruptedException e) {
22 |             e.printStackTrace();
23 |         }
24 |     }
25 | 
26 |     public static void main(String[] args) {
27 |         new Tank2().move();
28 |     }
29 | }
30 | 
31 | class Tank2 extends Tank {
32 |     @Override
33 |     public void move() {
34 |         long start = System.currentTimeMillis();
35 |         super.move();
36 |         long end = System.currentTimeMillis();
37 |         System.out.println(end - start);
38 |     }
39 | }
40 | 
41 | interface Movable {
42 |     void move();
43 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/proxy/v05/Tank.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.proxy.v05;
 2 | 
 3 | import java.util.Random;
 4 | 
 5 | /**
 6 |  * 问题：我想记录坦克的移动时间
 7 |  * 最简单的办法：修改代码，记录时间
 8 |  * 问题2：如果无法改变方法源码呢？
 9 |  * 用继承？
10 |  * v05:使用代理
11 |  */
12 | public class Tank implements Movable {
13 | 
14 |     /**
15 |      * 模拟坦克移动了一段儿时间
16 |      */
17 |     @Override
18 |     public void move() {
19 |         System.out.println("Tank moving claclacla...");
20 |         try {
21 |             Thread.sleep(new Random().nextInt(10000));
22 |         } catch (InterruptedException e) {
23 |             e.printStackTrace();
24 |         }
25 |     }
26 | 
27 |     public static void main(String[] args) {
28 |         new TankTimeProxy(new Tank()).move();
29 |     }
30 | }
31 | 
32 | class TankTimeProxy implements Movable {
33 | 
34 |     Tank tank;
35 | 
36 |     public TankTimeProxy(Tank tank) {
37 |         this.tank = tank;
38 |     }
39 | 
40 |     @Override
41 |     public void move() {
42 |         long start = System.currentTimeMillis();
43 |         tank.move();
44 |         long end = System.currentTimeMillis();
45 |         System.out.println(end - start);
46 |     }
47 | }
48 | 
49 | interface Movable {
50 |     void move();
51 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/proxy/v06/Tank.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.proxy.v06;
 2 | 
 3 | import java.util.Random;
 4 | 
 5 | /**
 6 |  * 问题：我想记录坦克的移动时间
 7 |  * 最简单的办法：修改代码，记录时间
 8 |  * 问题2：如果无法改变方法源码呢？
 9 |  * 用继承？
10 |  * v05:使用代理
11 |  * v06:代理有各种类型
12 |  * 问题：如何实现代理的各种组合？继承？Decorator?
13 |  */
14 | public class Tank implements Movable {
15 | 
16 |     /**
17 |      * 模拟坦克移动了一段儿时间
18 |      */
19 |     @Override
20 |     public void move() {
21 |         System.out.println("Tank moving claclacla...");
22 |         try {
23 |             Thread.sleep(new Random().nextInt(10000));
24 |         } catch (InterruptedException e) {
25 |             e.printStackTrace();
26 |         }
27 |     }
28 | 
29 |     public static void main(String[] args) {
30 |         new TankTimeProxy().move();
31 |     }
32 | }
33 | 
34 | class TankTimeProxy implements Movable {
35 |     Tank tank;
36 |     @Override
37 |     public void move() {
38 |         long start = System.currentTimeMillis();
39 |         tank.move();
40 |         long end = System.currentTimeMillis();
41 |         System.out.println(end - start);
42 |     }
43 | }
44 | 
45 | class TankLogProxy implements Movable {
46 |     Tank tank;
47 |     @Override
48 |     public void move() {
49 |         System.out.println("start moving...");
50 |         tank.move();
51 |         System.out.println("stopped!");
52 |     }
53 | }
54 | 
55 | interface Movable {
56 |     void move();
57 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/proxy/v07/Tank.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.proxy.v07;
 2 | 
 3 | 
 4 | import java.util.Random;
 5 | 
 6 | /**
 7 |  * 问题：我想记录坦克的移动时间
 8 |  * 最简单的办法：修改代码，记录时间
 9 |  * 问题2：如果无法改变方法源码呢？
10 |  * 用继承？
11 |  * v05:使用代理
12 |  * v06:代理有各种类型
13 |  * 问题：如何实现代理的各种组合？继承？Decorator?
14 |  * v07:代理的对象改成Movable类型-越来越像decorator了
15 |  *
16 |  */
17 | public class Tank implements Movable {
18 | 
19 |     /**
20 |      * 模拟坦克移动了一段儿时间
21 |      */
22 |     @Override
23 |     public void move() {
24 |         System.out.println("Tank moving claclacla...");
25 |         try {
26 |             Thread.sleep(new Random().nextInt(10000));
27 |         } catch (InterruptedException e) {
28 |             e.printStackTrace();
29 |         }
30 |     }
31 | 
32 |     public static void main(String[] args) {
33 | 
34 |         Tank t = new Tank();
35 |         TankTimeProxy ttp = new TankTimeProxy(t);
36 |         TankLogProxy tlp = new TankLogProxy(ttp);
37 |         tlp.move();
38 | 
39 | //        new TankLogProxy(
40 | //                new TankTimeProxy(
41 | //                        new Tank()
42 | //                )
43 | //        ).move();
44 |     }
45 | }
46 | 
47 | class TankTimeProxy implements Movable {
48 |     Movable m;
49 | 
50 |     public TankTimeProxy(Movable m) {
51 |         this.m = m;
52 |     }
53 | 
54 |     @Override
55 |     public void move() {
56 |         long start = System.currentTimeMillis();
57 |         m.move();
58 |         long end = System.currentTimeMillis();
59 |         System.out.println(end - start);
60 |     }
61 | }
62 | 
63 | class TankLogProxy implements Movable {
64 |     Movable m;
65 | 
66 |     public TankLogProxy(Movable m) {
67 |         this.m = m;
68 |     }
69 | 
70 |     @Override
71 |     public void move() {
72 |         System.out.println("start moving...");
73 |         m.move();
74 |         long end = System.currentTimeMillis();
75 |         System.out.println("stopped!");
76 |     }
77 | }
78 | 
79 | interface Movable {
80 |     void move();
81 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/proxy/v08/Tank.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.proxy.v08;
 2 | 
 3 | 
 4 | import java.lang.reflect.InvocationHandler;
 5 | import java.lang.reflect.Method;
 6 | import java.lang.reflect.Proxy;
 7 | import java.util.Random;
 8 | 
 9 | /**
10 |  * 问题：我想记录坦克的移动时间
11 |  * 最简单的办法：修改代码，记录时间
12 |  * 问题2：如果无法改变方法源码呢？
13 |  * 用继承？
14 |  * v05:使用代理
15 |  * v06:代理有各种类型
16 |  * 问题：如何实现代理的各种组合？继承？Decorator?
17 |  * v07:代理的对象改成Movable类型-越来越像decorator了
18 |  * v08:如果有stop方法需要代理...
19 |  * 如果想让LogProxy可以重用，不仅可以代理Tank，还可以代理任何其他可以代理的类型 Object
20 |  * （毕竟日志记录，时间计算是很多方法都需要的东西），这时该怎么做呢？
21 |  * 分离代理行为与被代理对象
22 |  * 使用jdk的动态代理
23 |  */
24 | public class Tank implements Movable {
25 | 
26 |     /**
27 |      * 模拟坦克移动了一段儿时间
28 |      */
29 |     @Override
30 |     public void move() {
31 |         System.out.println("Tank moving claclacla...");
32 |         try {
33 |             Thread.sleep(new Random().nextInt(10000));
34 |         } catch (InterruptedException e) {
35 |             e.printStackTrace();
36 |         }
37 |     }
38 | 
39 |     public static void main(String[] args) {
40 |         Tank tank = new Tank();
41 | 
42 |         //reflection 通过二进制字节码分析类的属性和方法
43 | 
44 |         Movable m = (Movable)Proxy.newProxyInstance(Tank.class.getClassLoader(),
45 |                 new Class[]{Movable.class}, //tank.class.getInterfaces()
46 |                 new LogHander(tank)
47 |         );
48 | 
49 |         m.move();
50 |     }
51 | }
52 | 
53 | class LogHander implements InvocationHandler {
54 | 
55 |     Tank tank;
56 | 
57 |     public LogHander(Tank tank) {
58 |         this.tank = tank;
59 |     }
60 |     //getClass.getMethods[]
61 |     @Override
62 |     public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
63 |         System.out.println("method " + method.getName() + " start..");
64 |         Object o = method.invoke(tank, args);
65 |         System.out.println("method " + method.getName() + " end!");
66 |         return o;
67 |     }
68 | }
69 | 
70 | 
71 | 
72 | interface Movable {
73 |     void move();
74 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/proxy/v09/Tank.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.proxy.v09;
 2 | 
 3 | 
 4 | 
 5 | import java.lang.reflect.InvocationHandler;
 6 | import java.lang.reflect.Method;
 7 | import java.lang.reflect.Proxy;
 8 | import java.util.Random;
 9 | 
10 | /**
11 |  * 问题：我想记录坦克的移动时间
12 |  * 最简单的办法：修改代码，记录时间
13 |  * 问题2：如果无法改变方法源码呢？
14 |  * 用继承？
15 |  * v05:使用代理
16 |  * v06:代理有各种类型
17 |  * 问题：如何实现代理的各种组合？继承？Decorator?
18 |  * v07:代理的对象改成Movable类型-越来越像decorator了
19 |  * v08:如果有stop方法需要代理...
20 |  * 如果想让LogProxy可以重用，不仅可以代理Tank，还可以代理任何其他可以代理的类型
21 |  * （毕竟日志记录，时间计算是很多方法都需要的东西），这时该怎么做呢？
22 |  * 分离代理行为与被代理对象
23 |  * 使用jdk的动态代理
24 |  *
25 |  * v09: 横切代码与业务逻辑代码分离 AOP
26 |  */
27 | public class Tank implements Movable {
28 | 
29 |     /**
30 |      * 模拟坦克移动了一段儿时间
31 |      */
32 |     @Override
33 |     public void move() {
34 |         System.out.println("Tank moving claclacla...");
35 |         try {
36 |             Thread.sleep(new Random().nextInt(10000));
37 |         } catch (InterruptedException e) {
38 |             e.printStackTrace();
39 |         }
40 |     }
41 | 
42 |     public static void main(String[] args) {
43 |         Tank tank = new Tank();
44 | 
45 |         Movable m = (Movable)Proxy.newProxyInstance(Tank.class.getClassLoader(),
46 |                 new Class[]{Movable.class}, //tank.class.getInterfaces()
47 |                 new TimeProxy(tank)
48 |         );
49 | 
50 |         m.move();
51 | 
52 |     }
53 | }
54 | 
55 | class TimeProxy implements InvocationHandler {
56 |     Movable m;
57 | 
58 |     public TimeProxy(Movable m) {
59 |         this.m = m;
60 |     }
61 | 
62 |     public void before() {
63 |         System.out.println("method start..");
64 |     }
65 | 
66 |     public void after() {
67 |         System.out.println("method stop..");
68 |     }
69 | 
70 |     @Override
71 |     public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
72 |         before();
73 |         Object o = method.invoke(m, args);
74 |         after();
75 |         return o;
76 |     }
77 | 
78 | }
79 | 
80 | interface Movable {
81 |     void move();
82 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/proxy/v10/Tank.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.proxy.v10;
 2 | 
 3 | 
 4 | 
 5 | import java.lang.reflect.InvocationHandler;
 6 | import java.lang.reflect.Method;
 7 | import java.lang.reflect.Proxy;
 8 | import java.util.Arrays;
 9 | import java.util.Random;
10 | 
11 | /**
12 |  * 问题：我想记录坦克的移动时间
13 |  * 最简单的办法：修改代码，记录时间
14 |  * 问题2：如果无法改变方法源码呢？
15 |  * 用继承？
16 |  * v05:使用代理
17 |  * v06:代理有各种类型
18 |  * 问题：如何实现代理的各种组合？继承？Decorator?
19 |  * v07:代理的对象改成Movable类型-越来越像decorator了
20 |  * v08:如果有stop方法需要代理...
21 |  * 如果想让LogProxy可以重用，不仅可以代理Tank，还可以代理任何其他可以代理的类型
22 |  * （毕竟日志记录，时间计算是很多方法都需要的东西），这时该怎么做呢？
23 |  * 分离代理行为与被代理对象
24 |  * 使用jdk的动态代理
25 |  *
26 |  * v09: 横切代码与业务逻辑代码分离 AOP
27 |  * v10: 通过反射观察生成的代理对象
28 |  * jdk反射生成代理必须面向接口，这是由Proxy的内部实现决定的
29 |  */
30 | public class Tank implements Movable {
31 | 
32 |     /**
33 |      * 模拟坦克移动了一段儿时间
34 |      */
35 |     @Override
36 |     public void move() {
37 |         System.out.println("Tank moving claclacla...");
38 |         try {
39 |             Thread.sleep(new Random().nextInt(10000));
40 |         } catch (InterruptedException e) {
41 |             e.printStackTrace();
42 |         }
43 |     }
44 | 
45 |     public static void main(String[] args) {
46 |         Tank tank = new Tank();
47 | 
48 |         System.getProperties().put("jdk.proxy.ProxyGenerator.saveGeneratedFiles","true");
49 | 
50 |         Movable m = (Movable)Proxy.newProxyInstance(Tank.class.getClassLoader(),
51 |                 new Class[]{Movable.class}, //tank.class.getInterfaces()
52 |                 new TimeProxy(tank)
53 |         );
54 | 
55 |         m.move();
56 | 
57 |     }
58 | }
59 | 
60 | class TimeProxy implements InvocationHandler {
61 |     Movable m;
62 | 
63 |     public TimeProxy(Movable m) {
64 |         this.m = m;
65 |     }
66 | 
67 |     public void before() {
68 |         System.out.println("method start..");
69 |     }
70 | 
71 |     public void after() {
72 |         System.out.println("method stop..");
73 |     }
74 | 
75 |     @Override
76 |     public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
77 |         //Arrays.stream(proxy.getClass().getMethods()).map(Method::getName).forEach(System.out::println);
78 | 
79 |         before();
80 |         Object o = method.invoke(m, args);
81 |         after();
82 |         return o;
83 |     }
84 | 
85 | }
86 | 
87 | interface Movable {
88 |     void move();
89 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/proxy/v11/LogInterceptor.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.proxy.v11;
 2 | 
 3 | import java.lang.reflect.InvocationHandler;
 4 | import java.lang.reflect.Method;
 5 | 
 6 | /**
 7 |  * 调用处理器实现类
 8 |  * 每次生成动态代理类对象时都需要指定一个实现了该接口的调用处理器对象
 9 |  */
10 | public class LogInterceptor implements InvocationHandler {
11 |     /**
12 |      * 这个就是我们要代理的真实对象
13 |      */
14 |     private Object target;
15 |     /**
16 |      * 构造方法，给我们要代理的真实对象赋初值
17 |      * @param subject
18 |      */
19 |     public LogInterceptor(Object target){
20 |         this.target = target;
21 |     }
22 | 
23 |     /**
24 |      * 该方法负责集中处理动态代理类上的所有方法调用。
25 |      * 调用处理器根据这三个参数进行预处理或分派到委托类实例上反射执行
26 |      * @param proxy  代理类实例
27 |      * @param method 被调用的方法对象
28 |      * @param args   调用参数
29 |      * @throws Throwable
30 |      */
31 |     @Override
32 |     public Object invoke(Object proxy, Method method, Object[] args) throws Throwable{
33 |         //在代理真实对象前我们可以添加一些自己的操作
34 |         System.out.println("trancation start");
35 | 
36 |         //当代理对象调用真实对象的方法时，其会自动的跳转到代理对象关联的handler对象的invoke方法来进行调用
37 |         Object returnValue = method.invoke(target, args);
38 | 
39 |         //在代理真实对象后我们也可以添加一些自己的操作
40 |         System.out.println("trancation commit");
41 |         return returnValue;
42 |     }
43 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/proxy/v11/RealSubject.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.proxy.v11;
 2 | 
 3 | /**
 4 |  * 实际对象
 5 |  */
 6 | public class RealSubject implements Subject{
 7 |     public void save(){
 8 |         System.out.println("insert into ......");
 9 |         save2();
10 |     }
11 | 
12 |     @Override
13 |     public void save2() {
14 |         System.out.println("22222222222222 into ......");
15 |     }
16 | 
17 | }
18 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/proxy/v11/Subject.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.proxy.v11;
 2 | 
 3 | /**
 4 |  * 需要动态代理的接口
 5 |  */
 6 | public interface Subject{
 7 |     public void save();
 8 | 
 9 |     public void save2();
10 | }


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/proxy/v11/Test.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.proxy.v11;
 2 | 
 3 | import java.lang.reflect.InvocationHandler;
 4 | import java.lang.reflect.Proxy;
 5 | 
 6 | /**
 7 |  *  动态代理演示
 8 |  *  通过分析代码可以看出Java 动态代理，具体有如下四步骤：
 9 |  通过实现 InvocationHandler 接口创建自己的调用处理器；
10 |  通过为 Proxy 类指定 ClassLoader 对象和一组 interface 来创建动态代理类；
11 |  通过反射机制获得动态代理类的构造函数，其唯一参数类型是调用处理器接口类型；
12 |  通过构造函数创建动态代理类实例，构造时调用处理器对象作为参数被传入。
13 |  */
14 | public class Test{
15 |     public static void main(String[] args) {
16 |         //代理的真实对象
17 |         Subject realSubject = new RealSubject();
18 |         InvocationHandler handler = new LogInterceptor(realSubject);
19 |         ClassLoader loader = realSubject.getClass().getClassLoader();
20 |         Class<?>[] interfaces = realSubject.getClass().getInterfaces();
21 |         /**
22 |          * 该方法用于为指定类装载器、一组接口及调用处理器生成动态代理类实例
23 |          */
24 |         Subject subjectProxy = (Subject) Proxy.newProxyInstance(loader, interfaces, handler);
25 |         subjectProxy.save();
26 |     }
27 | }


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/src/main/java/com/mashibing/dp/singleton/Main.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.singleton;
2 | 
3 | public class Main {
4 | 
5 |     public static void main(String[] args) {
6 |         //Mgr01 mgr = Mgr01.getInstance();
7 |     }
8 | }
9 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/singleton/Mgr01.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.singleton;
 2 | 
 3 | /**
 4 |  * 饿汉式
 5 |  * 类加载到内存后，就实例化一个单例，JVM保证线程安全
 6 |  * 简单实用，推荐使用！
 7 |  * 唯一缺点：不管用到与否，类装载时就完成实例化
 8 |  * Class.forName("")
 9 |  * （话说你不用的，你装载它干啥）
10 |  */
11 | public class Mgr01 {
12 |     private static final Mgr01 INSTANCE = new Mgr01();
13 | 
14 |     private Mgr01() {};
15 | 
16 |     public static Mgr01 getInstance() {
17 |         return INSTANCE;
18 |     }
19 | 
20 |     public void m() {
21 |         System.out.println("m");
22 |     }
23 | 
24 |     public static void main(String[] args) {
25 |         Mgr01 m1 = Mgr01.getInstance();
26 |         Mgr01 m2 = Mgr01.getInstance();
27 |         System.out.println(m1 == m2);
28 |     }
29 | }
30 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/singleton/Mgr02.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.singleton;
 2 | 
 3 | /**
 4 |  * 跟01是一个意思
 5 |  */
 6 | public class Mgr02 {
 7 |     private static final Mgr02 INSTANCE;
 8 |     static {
 9 |         INSTANCE = new Mgr02();
10 |     }
11 | 
12 |     private Mgr02() {};
13 | 
14 |     public static Mgr02 getInstance() {
15 |         return INSTANCE;
16 |     }
17 | 
18 |     public void m() {
19 |         System.out.println("m");
20 |     }
21 | 
22 |     public static void main(String[] args) {
23 |         Mgr02 m1 = Mgr02.getInstance();
24 |         Mgr02 m2 = Mgr02.getInstance();
25 |         System.out.println(m1 == m2);
26 |     }
27 | }
28 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/singleton/Mgr03.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.singleton;
 2 | 
 3 | /**
 4 |  * lazy loading
 5 |  * 也称懒汉式
 6 |  * 虽然达到了按需初始化的目的，但却带来线程不安全的问题
 7 |  */
 8 | public class Mgr03 {
 9 |     private static Mgr03 INSTANCE;
10 | 
11 |     private Mgr03() {
12 |     }
13 | 
14 |     public static Mgr03 getInstance() {
15 |         if (INSTANCE == null) {
16 |             try {
17 |                 Thread.sleep(1);
18 |             } catch (InterruptedException e) {
19 |                 e.printStackTrace();
20 |             }
21 |             INSTANCE = new Mgr03();
22 |         }
23 |         return INSTANCE;
24 |     }
25 | 
26 |     public void m() {
27 |         System.out.println("m");
28 |     }
29 | 
30 |     public static void main(String[] args) {
31 |         for(int i=0; i<100; i++) {
32 |             new Thread(()->
33 |                 System.out.println(Mgr03.getInstance().hashCode())
34 |             ).start();
35 |         }
36 |     }
37 | }
38 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/singleton/Mgr04.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.singleton;
 2 | 
 3 | /**
 4 |  * lazy loading
 5 |  * 也称懒汉式
 6 |  * 虽然达到了按需初始化的目的，但却带来线程不安全的问题
 7 |  * 可以通过synchronized解决，但也带来效率下降
 8 |  */
 9 | public class Mgr04 {
10 |     private static Mgr04 INSTANCE;
11 | 
12 |     private Mgr04() {
13 |     }
14 | 
15 |     public static synchronized Mgr04 getInstance() {
16 |         if (INSTANCE == null) {
17 |             try {
18 |                 Thread.sleep(1);
19 |             } catch (InterruptedException e) {
20 |                 e.printStackTrace();
21 |             }
22 |             INSTANCE = new Mgr04();
23 |         }
24 |         return INSTANCE;
25 |     }
26 | 
27 |     public void m() {
28 |         System.out.println("m");
29 |     }
30 | 
31 |     public static void main(String[] args) {
32 |         for(int i=0; i<100; i++) {
33 |             new Thread(()->{
34 |                 System.out.println(Mgr04.getInstance().hashCode());
35 |             }).start();
36 |         }
37 |     }
38 | }
39 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/singleton/Mgr05.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.singleton;
 2 | 
 3 | /**
 4 |  * lazy loading
 5 |  * 也称懒汉式
 6 |  * 虽然达到了按需初始化的目的，但却带来线程不安全的问题
 7 |  * 可以通过synchronized解决，但也带来效率下降
 8 |  */
 9 | public class Mgr05 {
10 |     private static Mgr05 INSTANCE;
11 | 
12 |     private Mgr05() {
13 |     }
14 | 
15 |     public static Mgr05 getInstance() {
16 |         if (INSTANCE == null) {
17 |             //妄图通过减小同步代码块的方式提高效率，然后不可行
18 |             synchronized (Mgr05.class) {
19 |                 try {
20 |                     Thread.sleep(1);
21 |                 } catch (InterruptedException e) {
22 |                     e.printStackTrace();
23 |                 }
24 |                 INSTANCE = new Mgr05();
25 |             }
26 |         }
27 |         return INSTANCE;
28 |     }
29 | 
30 |     public void m() {
31 |         System.out.println("m");
32 |     }
33 | 
34 |     public static void main(String[] args) {
35 |         for(int i=0; i<100; i++) {
36 |             new Thread(()->{
37 |                 System.out.println(Mgr05.getInstance().hashCode());
38 |             }).start();
39 |         }
40 |     }
41 | }
42 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/singleton/Mgr06.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.singleton;
 2 | 
 3 | /**
 4 |  * lazy loading
 5 |  * 也称懒汉式
 6 |  * 虽然达到了按需初始化的目的，但却带来线程不安全的问题
 7 |  * 可以通过synchronized解决，但也带来效率下降
 8 |  */
 9 | public class Mgr06 {
10 |     private static volatile Mgr06 INSTANCE; //JIT
11 | 
12 |     private Mgr06() {
13 |     }
14 | 
15 |     public static Mgr06 getInstance() {
16 |         if (INSTANCE == null) {
17 |             //双重检查
18 |             synchronized (Mgr06.class) {
19 |                 if(INSTANCE == null) {
20 |                     try {
21 |                         Thread.sleep(1);
22 |                     } catch (InterruptedException e) {
23 |                         e.printStackTrace();
24 |                     }
25 |                     INSTANCE = new Mgr06();
26 |                 }
27 |             }
28 |         }
29 |         return INSTANCE;
30 |     }
31 | 
32 |     public void m() {
33 |         System.out.println("m");
34 |     }
35 | 
36 |     public static void main(String[] args) {
37 |         for(int i=0; i<100; i++) {
38 |             new Thread(()->{
39 |                 System.out.println(Mgr06.getInstance().hashCode());
40 |             }).start();
41 |         }
42 |     }
43 | }
44 | 


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/src/main/java/com/mashibing/dp/singleton/Mgr07.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.singleton;
 2 | 
 3 | /**
 4 |  * 静态内部类方式
 5 |  * JVM保证单例
 6 |  * 加载外部类时不会加载内部类，这样可以实现懒加载
 7 |  */
 8 | public class Mgr07 {
 9 | 
10 |     private Mgr07() {
11 |     }
12 | 
13 |     private static class Mgr07Holder {
14 |         private final static Mgr07 INSTANCE = new Mgr07();
15 |     }
16 | 
17 |     public static Mgr07 getInstance() {
18 |         return Mgr07Holder.INSTANCE;
19 |     }
20 | 
21 |     public void m() {
22 |         System.out.println("m");
23 |     }
24 | 
25 |     public static void main(String[] args) {
26 |         for(int i=0; i<100; i++) {
27 |             new Thread(()->{
28 |                 System.out.println(Mgr07.getInstance().hashCode());
29 |             }).start();
30 |         }
31 |     }
32 | 
33 | 
34 | }
35 | 


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/src/main/java/com/mashibing/dp/singleton/Mgr08.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.singleton;
 2 | 
 3 | /**
 4 |  * 不仅可以解决线程同步，还可以防止反序列化。
 5 |  */
 6 | public enum Mgr08 {
 7 | 
 8 |     INSTANCE;
 9 | 
10 |     public void m() {}
11 | 
12 |     public static void main(String[] args) {
13 |         for(int i=0; i<100; i++) {
14 |             new Thread(()->{
15 |                 System.out.println(Mgr08.INSTANCE.hashCode());
16 |             }).start();
17 |         }
18 |     }
19 | 
20 | }
21 | 


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/src/main/java/com/mashibing/dp/spring/v1/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.spring.v1;
 2 | 
 3 | import org.springframework.context.ApplicationContext;
 4 | import org.springframework.context.support.ClassPathXmlApplicationContext;
 5 | 
 6 | /**
 7 |  * spring aop test
 8 |  */
 9 | 
10 | public class Main {
11 |     public static void main(String[] args) {
12 |         ApplicationContext context = new ClassPathXmlApplicationContext("app.xml");
13 |         Tank t = (Tank)context.getBean("tank");
14 |         t.move();
15 |     }
16 | }
17 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/spring/v1/Tank.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.spring.v1;
 2 | 
 3 | 
 4 | 
 5 | import java.lang.reflect.InvocationHandler;
 6 | import java.lang.reflect.Method;
 7 | import java.lang.reflect.Proxy;
 8 | import java.util.Random;
 9 | 
10 | /**
11 |  *
12 |  */
13 | public class Tank {
14 | 
15 |     /**
16 |      * 模拟坦克移动了一段儿时间
17 |      */
18 |     public void move() {
19 |         System.out.println("Tank moving claclacla...");
20 |         try {
21 |             Thread.sleep(new Random().nextInt(10000));
22 |         } catch (InterruptedException e) {
23 |             e.printStackTrace();
24 |         }
25 |     }
26 | }
27 | 
28 | 


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/src/main/java/com/mashibing/dp/spring/v1/TimeProxy.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.spring.v1;
 2 | 
 3 | public class TimeProxy {
 4 | 
 5 |     public void before() {
 6 |         System.out.println("method start.." + System.currentTimeMillis());
 7 |     }
 8 | 
 9 |     public void after() {
10 |         System.out.println("method stop.." + System.currentTimeMillis());
11 |     }
12 | 
13 | }
14 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/spring/v2/Main.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.spring.v2;
 2 | 
 3 | import org.springframework.context.ApplicationContext;
 4 | import org.springframework.context.support.ClassPathXmlApplicationContext;
 5 | 
 6 | /**
 7 |  * spring aop test
 8 |  */
 9 | 
10 | public class Main {
11 |     public static void main(String[] args) {
12 |         ApplicationContext context = new ClassPathXmlApplicationContext("app_auto.xml");
13 |         Tank t = (Tank)context.getBean("tank");
14 |         t.move();
15 |     }
16 | }
17 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/spring/v2/Tank.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.spring.v2;
 2 | 
 3 | 
 4 | 
 5 | import java.util.Random;
 6 | 
 7 | /**
 8 |  *
 9 |  */
10 | public class Tank {
11 | 
12 |     /**
13 |      * 模拟坦克移动了一段儿时间
14 |      */
15 |     public void move() {
16 |         System.out.println("Tank moving claclacla...");
17 |         try {
18 |             Thread.sleep(new Random().nextInt(10000));
19 |         } catch (InterruptedException e) {
20 |             e.printStackTrace();
21 |         }
22 |     }
23 | }
24 | 
25 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/spring/v2/TimeProxy.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.spring.v2;
 2 | 
 3 | import org.aspectj.lang.annotation.After;
 4 | import org.aspectj.lang.annotation.Aspect;
 5 | import org.aspectj.lang.annotation.Before;
 6 | 
 7 | @Aspect
 8 | public class TimeProxy {
 9 | 
10 |     @Before("execution (void com.mashibing.dp.spring.v2.Tank.move())")
11 |     public void before() {
12 |         System.out.println("method start.." + System.currentTimeMillis());
13 |     }
14 | 
15 |     @After("execution (void com.mashibing.dp.spring.v2.Tank.move())")
16 |     public void after() {
17 |         System.out.println("method stop.." + System.currentTimeMillis());
18 |     }
19 | 
20 | }
21 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/state/readme:
--------------------------------------------------------------------------------
1 | 根据状态决定动作
2 | 
3 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/state/thread/Action.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.state.thread;
2 | 
3 | public class Action {
4 |     String msg;
5 | }
6 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/state/thread/NewState.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.state.thread;
 2 | 
 3 | public class NewState extends ThreadState_ {
 4 |     private Thread_ t;
 5 | 
 6 |     public NewState(Thread_ t) {
 7 |         this.t = t;
 8 |     }
 9 | 
10 |     @Override
11 |     void move(Action input) {
12 |         if(input.msg == "start")
13 |         t.state = new RunningState(t);
14 |     }
15 | 
16 |     @Override
17 |     void run() {
18 | 
19 |     }
20 | }
21 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/state/thread/RunningState.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.state.thread;
 2 | 
 3 | public class RunningState extends ThreadState_ {
 4 |     private Thread_ t;
 5 | 
 6 |     public RunningState(Thread_ t) {
 7 |         this.t = t;
 8 |     }
 9 | 
10 |     @Override
11 |     void move(Action input) {
12 | 
13 |     }
14 | 
15 |     @Override
16 |     void run() {
17 | 
18 |     }
19 | }
20 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/state/thread/TerminatedState.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.state.thread;
 2 | 
 3 | public class TerminatedState extends ThreadState_ {
 4 |     private Thread_ t;
 5 | 
 6 |     public TerminatedState(Thread_ t) {
 7 |         this.t = t;
 8 |     }
 9 | 
10 |     @Override
11 |     void move(Action input) {
12 | 
13 |     }
14 | 
15 |     @Override
16 |     void run() {
17 | 
18 |     }
19 | }
20 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/state/thread/ThreadState_.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.state.thread;
2 | 
3 | public abstract class ThreadState_ {
4 |     abstract void move(Action input);
5 |     abstract void run();
6 | }
7 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/state/thread/Thread_.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.state.thread;
 2 | 
 3 | public class Thread_ {
 4 |     ThreadState_ state;
 5 | 
 6 |     void move(Action input) {
 7 |         state.move(input);
 8 |     }
 9 | 
10 |     void run() {
11 |         state.run();
12 |     }
13 | 
14 | 
15 | }
16 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/state/v1/MM.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.state.v1;
 2 | 
 3 | /**
 4 |  * 当增加新的状态时非常不方便
 5 |  */
 6 | 
 7 | public class MM {
 8 |     String name;
 9 |     private enum MMState {HAPPY, SAD}
10 |     MMState state;
11 | 
12 |     public void smile() {
13 |         //switch case
14 | 
15 |     }
16 | 
17 |     public void cry() {
18 |         //switch case
19 |     }
20 | 
21 |     public void say() {
22 |         //switch case
23 |     }
24 | }
25 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/state/v2/MM.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.state.v2;
 2 | 
 3 | /**
 4 |  * 当增加新的状态时非常不方便
 5 |  */
 6 | 
 7 | public class MM {
 8 |     String name;
 9 |     MMState state = new MMHappyState();
10 | 
11 |     public void smile() {
12 |         state.smile();
13 |     }
14 | 
15 |     public void cry() {
16 |         state.cry();
17 |     }
18 | 
19 |     public void say() {
20 |         state.say();
21 |     }
22 | 
23 | }
24 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/state/v2/MMHappyState.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.state.v2;
 2 | 
 3 | public class MMHappyState extends MMState {
 4 |     @Override
 5 |     void smile() {
 6 |         System.out.println("happy smile");
 7 |     }
 8 | 
 9 |     @Override
10 |     void cry() {
11 | 
12 |     }
13 | 
14 |     @Override
15 |     void say() {
16 | 
17 |     }
18 | }
19 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/state/v2/MMNervousState.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.state.v2;
 2 | 
 3 | public class MMNervousState extends MMState {
 4 |     @Override
 5 |     void smile() {
 6 | 
 7 |     }
 8 | 
 9 |     @Override
10 |     void cry() {
11 | 
12 |     }
13 | 
14 |     @Override
15 |     void say() {
16 | 
17 |     }
18 | }
19 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/state/v2/MMSadState.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.state.v2;
 2 | 
 3 | public class MMSadState extends MMState {
 4 |     @Override
 5 |     void smile() {
 6 | 
 7 |     }
 8 | 
 9 |     @Override
10 |     void cry() {
11 | 
12 |     }
13 | 
14 |     @Override
15 |     void say() {
16 | 
17 |     }
18 | }
19 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/state/v2/MMState.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.state.v2;
2 | 
3 | public abstract class MMState {
4 |     abstract void smile();
5 |     abstract void cry();
6 |     abstract void say();
7 | }
8 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/strategy/Cat.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.strategy;
 2 | 
 3 | public class Cat implements Comparable<Cat> {
 4 |     int weight, height;
 5 | 
 6 |     public Cat(int weight, int height) {
 7 |         this.weight = weight;
 8 |         this.height = height;
 9 |     }
10 | 
11 |     public int compareTo(Cat c) {
12 | 
13 |         if(this.weight < c.weight) return -1;
14 |         else if(this.weight > c.weight) return 1;
15 |         else return 0;
16 |     }
17 | 
18 |     @Override
19 |     public String toString() {
20 |         return "Cat{" +
21 |                 "weight=" + weight +
22 |                 ", height=" + height +
23 |                 '}';
24 |     }
25 | }
26 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/strategy/CatHeightComparator.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.strategy;
 2 | 
 3 | public class CatHeightComparator implements Comparator<Cat> {
 4 |     @Override
 5 |     public int compare(Cat o1, Cat o2) {
 6 |         if(o1.height > o2.height) return -1;
 7 |         else if (o1.height < o2.height) return 1;
 8 |         else return 0;
 9 |     }
10 | }
11 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/strategy/CatWeightComparator.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.strategy;
 2 | 
 3 | public class CatWeightComparator implements Comparator<Cat> {
 4 |     @Override
 5 |     public int compare(Cat o1, Cat o2) {
 6 |         if(o1.weight < o2.weight) return -1;
 7 |         else if (o1.weight > o2.weight) return 1;
 8 |         else return 0;
 9 |     }
10 | }
11 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/strategy/Comparable.java:
--------------------------------------------------------------------------------
1 | package com.mashibing.dp.strategy;
2 | 
3 | public interface Comparable<T> {
4 |     int compareTo(T o);
5 | }
6 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/strategy/Comparator.java:
--------------------------------------------------------------------------------
 1 | package com.mashibing.dp.strategy;
 2 | 
 3 | @FunctionalInterface
 4 | public interface Comparator<T> {
 5 |     int compare(T o1, T o2);
 6 | 
 7 |     default void m() {
 8 |         System.out.println("m");
 9 |     }
10 | }
11 | 


--------------------------------------------------------------------------------
/src/main/java/com/mashibing/dp/strategy/Dog.java:
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 1 | package com.mashibing.dp.strategy;
 2 | 
 3 | public class Dog implements Comparable<Dog> {
 4 | 
 5 |     int food;
 6 | 
 7 |     public Dog(int food) {
 8 |         this.food = food;
 9 |     }
10 | 
11 |     @Override
12 |     public int compareTo(Dog d) {
13 |         if(this.food < d.food) return -1;
14 |         else if(this.food > d.food) return 1;
15 |         else return 0;
16 |     }
17 | 
18 |     @Override
19 |     public String toString() {
20 |         return "Dog{" +
21 |                 "food=" + food +
22 |                 '}';
23 |     }
24 | }
25 | 


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/src/main/java/com/mashibing/dp/strategy/DogComparator.java:
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 1 | package com.mashibing.dp.strategy;
 2 | 
 3 | public class DogComparator implements Comparator<Dog> {
 4 |     @Override
 5 |     public int compare(Dog o1, Dog o2) {
 6 |         if(o1.food < o2.food) return -1;
 7 |         else if (o1.food > o2.food) return 1;
 8 |         else return 0;
 9 |     }
10 | }
11 | 


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/src/main/java/com/mashibing/dp/strategy/Main.java:
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 1 | package com.mashibing.dp.strategy;
 2 | 
 3 | import java.util.Arrays;
 4 | 
 5 | /**
 6 |  * writing tests first!
 7 |  * extreme programming
 8 |  */
 9 | public class Main {
10 |     public static void main(String[] args) {
11 |         //int[] a = {9, 2, 3, 5, 7, 1, 4};
12 |         Cat[] a = {new Cat(3, 3), new Cat(5, 5), new Cat(1, 1)};
13 |         //Dog[] a = {new Dog(3), new Dog(5), new Dog(1)};
14 |         Sorter<Cat> sorter = new Sorter<>();
15 |         sorter.sort(a, (o1, o2)->{
16 |             if(o1.weight < o2.weight) return -1;
17 |             else if (o1.weight>o2.weight) return 1;
18 |             else return 0;
19 |         });
20 |         System.out.println(Arrays.toString(a));
21 |     }
22 | }
23 | 


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/src/main/java/com/mashibing/dp/strategy/Sorter.java:
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 1 | package com.mashibing.dp.strategy;
 2 | 
 3 | public class Sorter<T> {
 4 | 
 5 |     public void sort(T[] arr, Comparator<T> comparator) {
 6 |         for(int i=0; i<arr.length - 1; i++) {
 7 |             int minPos = i;
 8 | 
 9 |             for(int j=i+1; j<arr.length; j++) {
10 |                 minPos = comparator.compare(arr[j],arr[minPos])==-1 ? j : minPos;
11 |             }
12 |             swap(arr, i, minPos);
13 |         }
14 |     }
15 | 
16 |     //sort(int)
17 | 
18 |     void swap(T[] arr, int i, int j) {
19 |         T temp = arr[i];
20 |         arr[i] = arr[j];
21 |         arr[j] = temp;
22 |     }
23 | }
24 | 


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/src/main/java/com/mashibing/dp/visitor/Computer.java:
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  1 | package com.mashibing.dp.visitor;
  2 | 
  3 | public class Computer {
  4 |     ComputerPart cpu = new CPU();
  5 |     ComputerPart memory = new Memory();
  6 |     ComputerPart board = new Board();
  7 | 
  8 |     public void acccept(Visitor v) {
  9 |         this.cpu.accept(v);
 10 |         this.memory.accept(v);
 11 |         this.board.accept(v);
 12 |     }
 13 | 
 14 |     public static void main(String[] args) {
 15 |         PersonelVisitor p = new PersonelVisitor();
 16 |         new Computer().acccept(p);
 17 |         System.out.println(p.totalPrice);
 18 |     }
 19 | }
 20 | 
 21 | abstract class ComputerPart {
 22 |     abstract void accept(Visitor v);
 23 |     //some other operations eg:getName getBrand
 24 |     abstract double getPrice();
 25 | }
 26 | 
 27 | class CPU extends ComputerPart {
 28 | 
 29 |     @Override
 30 |     void accept(Visitor v) {
 31 |         v.visitCpu(this);
 32 |     }
 33 | 
 34 |     @Override
 35 |     double getPrice() {
 36 |         return 500;
 37 |     }
 38 | }
 39 | 
 40 | class Memory extends ComputerPart {
 41 | 
 42 |     @Override
 43 |     void accept(Visitor v) {
 44 |         v.visitMemory(this);
 45 |     }
 46 | 
 47 |     @Override
 48 |     double getPrice() {
 49 |         return 300;
 50 |     }
 51 | }
 52 | 
 53 | class Board extends ComputerPart {
 54 | 
 55 |     @Override
 56 |     void accept(Visitor v) {
 57 |         v.visitBoard(this);
 58 |     }
 59 | 
 60 |     @Override
 61 |     double getPrice() {
 62 |         return 200;
 63 |     }
 64 | }
 65 | 
 66 | interface Visitor {
 67 |     void visitCpu(CPU cpu);
 68 |     void visitMemory(Memory memory);
 69 |     void visitBoard(Board board);
 70 | }
 71 | 
 72 | class PersonelVisitor implements Visitor {
 73 |     double totalPrice = 0.0;
 74 | 
 75 |     @Override
 76 |     public void visitCpu(CPU cpu) {
 77 |         totalPrice += cpu.getPrice()*0.9;
 78 |     }
 79 | 
 80 |     @Override
 81 |     public void visitMemory(Memory memory) {
 82 |         totalPrice += memory.getPrice()*0.85;
 83 |     }
 84 | 
 85 |     @Override
 86 |     public void visitBoard(Board board) {
 87 |         totalPrice += board.getPrice()*0.95;
 88 |     }
 89 | }
 90 | 
 91 | class CorpVisitor implements Visitor {
 92 |     double totalPrice = 0.0;
 93 | 
 94 |     @Override
 95 |     public void visitCpu(CPU cpu) {
 96 |         totalPrice += cpu.getPrice()*0.6;
 97 |     }
 98 | 
 99 |     @Override
100 |     public void visitMemory(Memory memory) {
101 |         totalPrice += memory.getPrice()*0.75;
102 |     }
103 | 
104 |     @Override
105 |     public void visitBoard(Board board) {
106 |         totalPrice += board.getPrice()*0.75;
107 |     }
108 | }
109 | 


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/src/main/resources/app.xml:
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 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <beans xmlns="http://www.springframework.org/schema/beans"
 3 |        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4 |        xmlns:aop="http://www.springframework.org/schema/aop"
 5 |        xsi:schemaLocation="http://www.springframework.org/schema/beans
 6 |         http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
 7 |         http://www.springframework.org/schema/aop
 8 |         http://www.springframework.org/schema/aop/spring-aop-4.2.xsd">
 9 | 
10 |     <!--
11 | 
12 |     <bean id="d" class="com.mashibing.Driver"></bean>
13 |     <bean id="tank" class="com.mashibing.Tank">
14 |         <property name="driver" ref="d"></property>
15 |     </bean>
16 | 
17 |     -->
18 | 
19 |     <bean id="tank" class="com.mashibing.dp.spring.v1.Tank"/>
20 |     <bean id="timeProxy" class="com.mashibing.dp.spring.v1.TimeProxy"/>
21 | 
22 |     <aop:config>
23 |         <aop:aspect id="time" ref="timeProxy">
24 |             <aop:pointcut id="onmove" expression="execution(void com.mashibing.dp.spring.v1.Tank.move())"/>
25 |             <aop:before method="before" pointcut-ref="onmove"/>
26 |             <aop:after method="after" pointcut-ref="onmove"/>
27 |         </aop:aspect>
28 |     </aop:config>
29 | 
30 | </beans>


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/src/main/resources/app_auto.xml:
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 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <beans xmlns="http://www.springframework.org/schema/beans"
 3 |        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4 |        xmlns:aop="http://www.springframework.org/schema/aop"
 5 |        xsi:schemaLocation="http://www.springframework.org/schema/beans
 6 |         http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
 7 |         http://www.springframework.org/schema/aop
 8 |         http://www.springframework.org/schema/aop/spring-aop-4.2.xsd">
 9 | 
10 |     <!--
11 | 
12 |     <bean id="d" class="com.mashibing.Driver"></bean>
13 |     <bean id="tank" class="com.mashibing.Tank">
14 |         <property name="driver" ref="d"></property>
15 |     </bean>
16 | 
17 |     -->
18 | 
19 |     <aop:aspectj-autoproxy/>
20 | 
21 |     <bean id="tank" class="com.mashibing.dp.spring.v2.Tank"/>
22 |     <bean id="timeProxy" class="com.mashibing.dp.spring.v2.TimeProxy"/>
23 | 
24 | <!--    <aop:config>-->
25 | <!--        <aop:aspect id="time" ref="timeProxy">-->
26 | <!--            <aop:pointcut id="onmove" expression="execution(void com.mashibing.dp.spring.v1.Tank.move())"/>-->
27 | <!--            <aop:before method="before" pointcut-ref="onmove"/>-->
28 | <!--            <aop:after method="after" pointcut-ref="onmove"/>-->
29 | <!--        </aop:aspect>-->
30 | <!--    </aop:config>-->
31 | 
32 | </beans>


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