├── .gitignore ├── .mvn └── wrapper │ ├── MavenWrapperDownloader.java │ ├── maven-wrapper.jar │ └── maven-wrapper.properties ├── mvnw ├── mvnw.cmd ├── pom.xml ├── src ├── main │ ├── java │ │ └── com │ │ │ └── blibli │ │ │ └── belajar │ │ │ └── design │ │ │ └── patterns │ │ │ ├── BelajarDesignPatternsApplication.java │ │ │ ├── adapter │ │ │ └── AdapterPattern.java │ │ │ ├── builder │ │ │ └── BuilderApplication.java │ │ │ ├── chain │ │ │ └── ChainApplication.java │ │ │ ├── di │ │ │ └── DependencyInjectionApplication.java │ │ │ ├── dynamicmodule │ │ │ └── DynamicModuleApplication.java │ │ │ ├── facade │ │ │ └── FacadeApplication.java │ │ │ ├── factory │ │ │ └── FactoryApplication.java │ │ │ ├── iterator │ │ │ └── IteratorApplication.java │ │ │ ├── module │ │ │ └── MyModuleConfiguration.java │ │ │ ├── observer │ │ │ └── ObserverApplication.java │ │ │ ├── prototype │ │ │ └── PrototypeApplication.java │ │ │ ├── proxy │ │ │ └── ProxyApplication.java │ │ │ ├── resolver │ │ │ └── ResolverApplication.java │ │ │ └── singleton │ │ │ └── SingletonApplication.java │ └── resources │ │ ├── META-INF │ │ └── spring.factories │ │ └── application.properties └── test │ └── java │ └── com │ └── blibli │ └── belajar │ └── design │ └── patterns │ └── BelajarDesignPatternsApplicationTests.java └── test.http /.gitignore: -------------------------------------------------------------------------------- 1 | HELP.md 2 | .idea 3 | target/ 4 | !.mvn/wrapper/maven-wrapper.jar 5 | !**/src/main/**/target/ 6 | !**/src/test/**/target/ 7 | 8 | ### STS ### 9 | .apt_generated 10 | .classpath 11 | .factorypath 12 | .project 13 | .settings 14 | .springBeans 15 | .sts4-cache 16 | 17 | ### IntelliJ IDEA ### 18 | .idea 19 | *.iws 20 | *.iml 21 | *.ipr 22 | 23 | ### NetBeans ### 24 | /nbproject/private/ 25 | /nbbuild/ 26 | /dist/ 27 | /nbdist/ 28 | /.nb-gradle/ 29 | build/ 30 | !**/src/main/**/build/ 31 | !**/src/test/**/build/ 32 | 33 | ### VS Code ### 34 | .vscode/ 35 | -------------------------------------------------------------------------------- /.mvn/wrapper/MavenWrapperDownloader.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2007-present the original author or authors. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * https://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | import java.net.*; 17 | import java.io.*; 18 | import java.nio.channels.*; 19 | import java.util.Properties; 20 | 21 | public class MavenWrapperDownloader { 22 | 23 | private static final String WRAPPER_VERSION = "0.5.6"; 24 | /** 25 | * Default URL to download the maven-wrapper.jar from, if no 'downloadUrl' is provided. 26 | */ 27 | private static final String DEFAULT_DOWNLOAD_URL = "https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/" 28 | + WRAPPER_VERSION + "/maven-wrapper-" + WRAPPER_VERSION + ".jar"; 29 | 30 | /** 31 | * Path to the maven-wrapper.properties file, which might contain a downloadUrl property to 32 | * use instead of the default one. 33 | */ 34 | private static final String MAVEN_WRAPPER_PROPERTIES_PATH = 35 | ".mvn/wrapper/maven-wrapper.properties"; 36 | 37 | /** 38 | * Path where the maven-wrapper.jar will be saved to. 39 | */ 40 | private static final String MAVEN_WRAPPER_JAR_PATH = 41 | ".mvn/wrapper/maven-wrapper.jar"; 42 | 43 | /** 44 | * Name of the property which should be used to override the default download url for the wrapper. 45 | */ 46 | private static final String PROPERTY_NAME_WRAPPER_URL = "wrapperUrl"; 47 | 48 | public static void main(String args[]) { 49 | System.out.println("- Downloader started"); 50 | File baseDirectory = new File(args[0]); 51 | System.out.println("- Using base directory: " + baseDirectory.getAbsolutePath()); 52 | 53 | // If the maven-wrapper.properties exists, read it and check if it contains a custom 54 | // wrapperUrl parameter. 55 | File mavenWrapperPropertyFile = new File(baseDirectory, MAVEN_WRAPPER_PROPERTIES_PATH); 56 | String url = DEFAULT_DOWNLOAD_URL; 57 | if(mavenWrapperPropertyFile.exists()) { 58 | FileInputStream mavenWrapperPropertyFileInputStream = null; 59 | try { 60 | mavenWrapperPropertyFileInputStream = new FileInputStream(mavenWrapperPropertyFile); 61 | Properties mavenWrapperProperties = new Properties(); 62 | mavenWrapperProperties.load(mavenWrapperPropertyFileInputStream); 63 | url = mavenWrapperProperties.getProperty(PROPERTY_NAME_WRAPPER_URL, url); 64 | } catch (IOException e) { 65 | System.out.println("- ERROR loading '" + MAVEN_WRAPPER_PROPERTIES_PATH + "'"); 66 | } finally { 67 | try { 68 | if(mavenWrapperPropertyFileInputStream != null) { 69 | mavenWrapperPropertyFileInputStream.close(); 70 | } 71 | } catch (IOException e) { 72 | // Ignore ... 73 | } 74 | } 75 | } 76 | System.out.println("- Downloading from: " + url); 77 | 78 | File outputFile = new File(baseDirectory.getAbsolutePath(), MAVEN_WRAPPER_JAR_PATH); 79 | if(!outputFile.getParentFile().exists()) { 80 | if(!outputFile.getParentFile().mkdirs()) { 81 | System.out.println( 82 | "- ERROR creating output directory '" + outputFile.getParentFile().getAbsolutePath() + "'"); 83 | } 84 | } 85 | System.out.println("- Downloading to: " + outputFile.getAbsolutePath()); 86 | try { 87 | downloadFileFromURL(url, outputFile); 88 | System.out.println("Done"); 89 | System.exit(0); 90 | } catch (Throwable e) { 91 | System.out.println("- Error downloading"); 92 | e.printStackTrace(); 93 | System.exit(1); 94 | } 95 | } 96 | 97 | private static void downloadFileFromURL(String urlString, File destination) throws Exception { 98 | if (System.getenv("MVNW_USERNAME") != null && System.getenv("MVNW_PASSWORD") != null) { 99 | String username = System.getenv("MVNW_USERNAME"); 100 | char[] password = System.getenv("MVNW_PASSWORD").toCharArray(); 101 | Authenticator.setDefault(new Authenticator() { 102 | @Override 103 | protected PasswordAuthentication getPasswordAuthentication() { 104 | return new PasswordAuthentication(username, password); 105 | } 106 | }); 107 | } 108 | URL website = new URL(urlString); 109 | ReadableByteChannel rbc; 110 | rbc = Channels.newChannel(website.openStream()); 111 | FileOutputStream fos = new FileOutputStream(destination); 112 | fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE); 113 | fos.close(); 114 | rbc.close(); 115 | } 116 | 117 | } 118 | -------------------------------------------------------------------------------- /.mvn/wrapper/maven-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/bliblidotcom/spring-design-patterns/8c8aa002be0d0f199244614d7b4e5fe70c301671/.mvn/wrapper/maven-wrapper.jar -------------------------------------------------------------------------------- /.mvn/wrapper/maven-wrapper.properties: -------------------------------------------------------------------------------- 1 | distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.6.3/apache-maven-3.6.3-bin.zip 2 | wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar 3 | -------------------------------------------------------------------------------- /mvnw: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | # ---------------------------------------------------------------------------- 3 | # Licensed to the Apache Software Foundation (ASF) under one 4 | # or more contributor license agreements. See the NOTICE file 5 | # distributed with this work for additional information 6 | # regarding copyright ownership. The ASF licenses this file 7 | # to you under the Apache License, Version 2.0 (the 8 | # "License"); you may not use this file except in compliance 9 | # with the License. You may obtain a copy of the License at 10 | # 11 | # https://www.apache.org/licenses/LICENSE-2.0 12 | # 13 | # Unless required by applicable law or agreed to in writing, 14 | # software distributed under the License is distributed on an 15 | # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 | # KIND, either express or implied. See the License for the 17 | # specific language governing permissions and limitations 18 | # under the License. 19 | # ---------------------------------------------------------------------------- 20 | 21 | # ---------------------------------------------------------------------------- 22 | # Maven Start Up Batch script 23 | # 24 | # Required ENV vars: 25 | # ------------------ 26 | # JAVA_HOME - location of a JDK home dir 27 | # 28 | # Optional ENV vars 29 | # ----------------- 30 | # M2_HOME - location of maven2's installed home dir 31 | # MAVEN_OPTS - parameters passed to the Java VM when running Maven 32 | # e.g. to debug Maven itself, use 33 | # set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 34 | # MAVEN_SKIP_RC - flag to disable loading of mavenrc files 35 | # ---------------------------------------------------------------------------- 36 | 37 | if [ -z "$MAVEN_SKIP_RC" ] ; then 38 | 39 | if [ -f /etc/mavenrc ] ; then 40 | . /etc/mavenrc 41 | fi 42 | 43 | if [ -f "$HOME/.mavenrc" ] ; then 44 | . "$HOME/.mavenrc" 45 | fi 46 | 47 | fi 48 | 49 | # OS specific support. $var _must_ be set to either true or false. 50 | cygwin=false; 51 | darwin=false; 52 | mingw=false 53 | case "`uname`" in 54 | CYGWIN*) cygwin=true ;; 55 | MINGW*) mingw=true;; 56 | Darwin*) darwin=true 57 | # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home 58 | # See https://developer.apple.com/library/mac/qa/qa1170/_index.html 59 | if [ -z "$JAVA_HOME" ]; then 60 | if [ -x "/usr/libexec/java_home" ]; then 61 | export JAVA_HOME="`/usr/libexec/java_home`" 62 | else 63 | export JAVA_HOME="/Library/Java/Home" 64 | fi 65 | fi 66 | ;; 67 | esac 68 | 69 | if [ -z "$JAVA_HOME" ] ; then 70 | if [ -r /etc/gentoo-release ] ; then 71 | JAVA_HOME=`java-config --jre-home` 72 | fi 73 | fi 74 | 75 | if [ -z "$M2_HOME" ] ; then 76 | ## resolve links - $0 may be a link to maven's home 77 | PRG="$0" 78 | 79 | # need this for relative symlinks 80 | while [ -h "$PRG" ] ; do 81 | ls=`ls -ld "$PRG"` 82 | link=`expr "$ls" : '.*-> \(.*\)$'` 83 | if expr "$link" : '/.*' > /dev/null; then 84 | PRG="$link" 85 | else 86 | PRG="`dirname "$PRG"`/$link" 87 | fi 88 | done 89 | 90 | saveddir=`pwd` 91 | 92 | M2_HOME=`dirname "$PRG"`/.. 93 | 94 | # make it fully qualified 95 | M2_HOME=`cd "$M2_HOME" && pwd` 96 | 97 | cd "$saveddir" 98 | # echo Using m2 at $M2_HOME 99 | fi 100 | 101 | # For Cygwin, ensure paths are in UNIX format before anything is touched 102 | if $cygwin ; then 103 | [ -n "$M2_HOME" ] && 104 | M2_HOME=`cygpath --unix "$M2_HOME"` 105 | [ -n "$JAVA_HOME" ] && 106 | JAVA_HOME=`cygpath --unix "$JAVA_HOME"` 107 | [ -n "$CLASSPATH" ] && 108 | CLASSPATH=`cygpath --path --unix "$CLASSPATH"` 109 | fi 110 | 111 | # For Mingw, ensure paths are in UNIX format before anything is touched 112 | if $mingw ; then 113 | [ -n "$M2_HOME" ] && 114 | M2_HOME="`(cd "$M2_HOME"; pwd)`" 115 | [ -n "$JAVA_HOME" ] && 116 | JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`" 117 | fi 118 | 119 | if [ -z "$JAVA_HOME" ]; then 120 | javaExecutable="`which javac`" 121 | if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then 122 | # readlink(1) is not available as standard on Solaris 10. 123 | readLink=`which readlink` 124 | if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then 125 | if $darwin ; then 126 | javaHome="`dirname \"$javaExecutable\"`" 127 | javaExecutable="`cd \"$javaHome\" && pwd -P`/javac" 128 | else 129 | javaExecutable="`readlink -f \"$javaExecutable\"`" 130 | fi 131 | javaHome="`dirname \"$javaExecutable\"`" 132 | javaHome=`expr "$javaHome" : '\(.*\)/bin'` 133 | JAVA_HOME="$javaHome" 134 | export JAVA_HOME 135 | fi 136 | fi 137 | fi 138 | 139 | if [ -z "$JAVACMD" ] ; then 140 | if [ -n "$JAVA_HOME" ] ; then 141 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 142 | # IBM's JDK on AIX uses strange locations for the executables 143 | JAVACMD="$JAVA_HOME/jre/sh/java" 144 | else 145 | JAVACMD="$JAVA_HOME/bin/java" 146 | fi 147 | else 148 | JAVACMD="`which java`" 149 | fi 150 | fi 151 | 152 | if [ ! -x "$JAVACMD" ] ; then 153 | echo "Error: JAVA_HOME is not defined correctly." >&2 154 | echo " We cannot execute $JAVACMD" >&2 155 | exit 1 156 | fi 157 | 158 | if [ -z "$JAVA_HOME" ] ; then 159 | echo "Warning: JAVA_HOME environment variable is not set." 160 | fi 161 | 162 | CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher 163 | 164 | # traverses directory structure from process work directory to filesystem root 165 | # first directory with .mvn subdirectory is considered project base directory 166 | find_maven_basedir() { 167 | 168 | if [ -z "$1" ] 169 | then 170 | echo "Path not specified to find_maven_basedir" 171 | return 1 172 | fi 173 | 174 | basedir="$1" 175 | wdir="$1" 176 | while [ "$wdir" != '/' ] ; do 177 | if [ -d "$wdir"/.mvn ] ; then 178 | basedir=$wdir 179 | break 180 | fi 181 | # workaround for JBEAP-8937 (on Solaris 10/Sparc) 182 | if [ -d "${wdir}" ]; then 183 | wdir=`cd "$wdir/.."; pwd` 184 | fi 185 | # end of workaround 186 | done 187 | echo "${basedir}" 188 | } 189 | 190 | # concatenates all lines of a file 191 | concat_lines() { 192 | if [ -f "$1" ]; then 193 | echo "$(tr -s '\n' ' ' < "$1")" 194 | fi 195 | } 196 | 197 | BASE_DIR=`find_maven_basedir "$(pwd)"` 198 | if [ -z "$BASE_DIR" ]; then 199 | exit 1; 200 | fi 201 | 202 | ########################################################################################## 203 | # Extension to allow automatically downloading the maven-wrapper.jar from Maven-central 204 | # This allows using the maven wrapper in projects that prohibit checking in binary data. 205 | ########################################################################################## 206 | if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then 207 | if [ "$MVNW_VERBOSE" = true ]; then 208 | echo "Found .mvn/wrapper/maven-wrapper.jar" 209 | fi 210 | else 211 | if [ "$MVNW_VERBOSE" = true ]; then 212 | echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..." 213 | fi 214 | if [ -n "$MVNW_REPOURL" ]; then 215 | jarUrl="$MVNW_REPOURL/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar" 216 | else 217 | jarUrl="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar" 218 | fi 219 | while IFS="=" read key value; do 220 | case "$key" in (wrapperUrl) jarUrl="$value"; break ;; 221 | esac 222 | done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties" 223 | if [ "$MVNW_VERBOSE" = true ]; then 224 | echo "Downloading from: $jarUrl" 225 | fi 226 | wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" 227 | if $cygwin; then 228 | wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"` 229 | fi 230 | 231 | if command -v wget > /dev/null; then 232 | if [ "$MVNW_VERBOSE" = true ]; then 233 | echo "Found wget ... using wget" 234 | fi 235 | if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then 236 | wget "$jarUrl" -O "$wrapperJarPath" 237 | else 238 | wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath" 239 | fi 240 | elif command -v curl > /dev/null; then 241 | if [ "$MVNW_VERBOSE" = true ]; then 242 | echo "Found curl ... using curl" 243 | fi 244 | if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then 245 | curl -o "$wrapperJarPath" "$jarUrl" -f 246 | else 247 | curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f 248 | fi 249 | 250 | else 251 | if [ "$MVNW_VERBOSE" = true ]; then 252 | echo "Falling back to using Java to download" 253 | fi 254 | javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java" 255 | # For Cygwin, switch paths to Windows format before running javac 256 | if $cygwin; then 257 | javaClass=`cygpath --path --windows "$javaClass"` 258 | fi 259 | if [ -e "$javaClass" ]; then 260 | if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then 261 | if [ "$MVNW_VERBOSE" = true ]; then 262 | echo " - Compiling MavenWrapperDownloader.java ..." 263 | fi 264 | # Compiling the Java class 265 | ("$JAVA_HOME/bin/javac" "$javaClass") 266 | fi 267 | if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then 268 | # Running the downloader 269 | if [ "$MVNW_VERBOSE" = true ]; then 270 | echo " - Running MavenWrapperDownloader.java ..." 271 | fi 272 | ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR") 273 | fi 274 | fi 275 | fi 276 | fi 277 | ########################################################################################## 278 | # End of extension 279 | ########################################################################################## 280 | 281 | export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"} 282 | if [ "$MVNW_VERBOSE" = true ]; then 283 | echo $MAVEN_PROJECTBASEDIR 284 | fi 285 | MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS" 286 | 287 | # For Cygwin, switch paths to Windows format before running java 288 | if $cygwin; then 289 | [ -n "$M2_HOME" ] && 290 | M2_HOME=`cygpath --path --windows "$M2_HOME"` 291 | [ -n "$JAVA_HOME" ] && 292 | JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"` 293 | [ -n "$CLASSPATH" ] && 294 | CLASSPATH=`cygpath --path --windows "$CLASSPATH"` 295 | [ -n "$MAVEN_PROJECTBASEDIR" ] && 296 | MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"` 297 | fi 298 | 299 | # Provide a "standardized" way to retrieve the CLI args that will 300 | # work with both Windows and non-Windows executions. 301 | MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@" 302 | export MAVEN_CMD_LINE_ARGS 303 | 304 | WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain 305 | 306 | exec "$JAVACMD" \ 307 | $MAVEN_OPTS \ 308 | -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \ 309 | "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \ 310 | ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@" 311 | -------------------------------------------------------------------------------- /mvnw.cmd: -------------------------------------------------------------------------------- 1 | @REM ---------------------------------------------------------------------------- 2 | @REM Licensed to the Apache Software Foundation (ASF) under one 3 | @REM or more contributor license agreements. See the NOTICE file 4 | @REM distributed with this work for additional information 5 | @REM regarding copyright ownership. The ASF licenses this file 6 | @REM to you under the Apache License, Version 2.0 (the 7 | @REM "License"); you may not use this file except in compliance 8 | @REM with the License. You may obtain a copy of the License at 9 | @REM 10 | @REM https://www.apache.org/licenses/LICENSE-2.0 11 | @REM 12 | @REM Unless required by applicable law or agreed to in writing, 13 | @REM software distributed under the License is distributed on an 14 | @REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 | @REM KIND, either express or implied. See the License for the 16 | @REM specific language governing permissions and limitations 17 | @REM under the License. 18 | @REM ---------------------------------------------------------------------------- 19 | 20 | @REM ---------------------------------------------------------------------------- 21 | @REM Maven Start Up Batch script 22 | @REM 23 | @REM Required ENV vars: 24 | @REM JAVA_HOME - location of a JDK home dir 25 | @REM 26 | @REM Optional ENV vars 27 | @REM M2_HOME - location of maven2's installed home dir 28 | @REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands 29 | @REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending 30 | @REM MAVEN_OPTS - parameters passed to the Java VM when running Maven 31 | @REM e.g. to debug Maven itself, use 32 | @REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 33 | @REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files 34 | @REM ---------------------------------------------------------------------------- 35 | 36 | @REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on' 37 | @echo off 38 | @REM set title of command window 39 | title %0 40 | @REM enable echoing by setting MAVEN_BATCH_ECHO to 'on' 41 | @if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO% 42 | 43 | @REM set %HOME% to equivalent of $HOME 44 | if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%") 45 | 46 | @REM Execute a user defined script before this one 47 | if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre 48 | @REM check for pre script, once with legacy .bat ending and once with .cmd ending 49 | if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat" 50 | if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd" 51 | :skipRcPre 52 | 53 | @setlocal 54 | 55 | set ERROR_CODE=0 56 | 57 | @REM To isolate internal variables from possible post scripts, we use another setlocal 58 | @setlocal 59 | 60 | @REM ==== START VALIDATION ==== 61 | if not "%JAVA_HOME%" == "" goto OkJHome 62 | 63 | echo. 64 | echo Error: JAVA_HOME not found in your environment. >&2 65 | echo Please set the JAVA_HOME variable in your environment to match the >&2 66 | echo location of your Java installation. >&2 67 | echo. 68 | goto error 69 | 70 | :OkJHome 71 | if exist "%JAVA_HOME%\bin\java.exe" goto init 72 | 73 | echo. 74 | echo Error: JAVA_HOME is set to an invalid directory. >&2 75 | echo JAVA_HOME = "%JAVA_HOME%" >&2 76 | echo Please set the JAVA_HOME variable in your environment to match the >&2 77 | echo location of your Java installation. >&2 78 | echo. 79 | goto error 80 | 81 | @REM ==== END VALIDATION ==== 82 | 83 | :init 84 | 85 | @REM Find the project base dir, i.e. the directory that contains the folder ".mvn". 86 | @REM Fallback to current working directory if not found. 87 | 88 | set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR% 89 | IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir 90 | 91 | set EXEC_DIR=%CD% 92 | set WDIR=%EXEC_DIR% 93 | :findBaseDir 94 | IF EXIST "%WDIR%"\.mvn goto baseDirFound 95 | cd .. 96 | IF "%WDIR%"=="%CD%" goto baseDirNotFound 97 | set WDIR=%CD% 98 | goto findBaseDir 99 | 100 | :baseDirFound 101 | set MAVEN_PROJECTBASEDIR=%WDIR% 102 | cd "%EXEC_DIR%" 103 | goto endDetectBaseDir 104 | 105 | :baseDirNotFound 106 | set MAVEN_PROJECTBASEDIR=%EXEC_DIR% 107 | cd "%EXEC_DIR%" 108 | 109 | :endDetectBaseDir 110 | 111 | IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig 112 | 113 | @setlocal EnableExtensions EnableDelayedExpansion 114 | for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a 115 | @endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS% 116 | 117 | :endReadAdditionalConfig 118 | 119 | SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe" 120 | set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar" 121 | set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain 122 | 123 | set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar" 124 | 125 | FOR /F "tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO ( 126 | IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B 127 | ) 128 | 129 | @REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central 130 | @REM This allows using the maven wrapper in projects that prohibit checking in binary data. 131 | if exist %WRAPPER_JAR% ( 132 | if "%MVNW_VERBOSE%" == "true" ( 133 | echo Found %WRAPPER_JAR% 134 | ) 135 | ) else ( 136 | if not "%MVNW_REPOURL%" == "" ( 137 | SET DOWNLOAD_URL="%MVNW_REPOURL%/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar" 138 | ) 139 | if "%MVNW_VERBOSE%" == "true" ( 140 | echo Couldn't find %WRAPPER_JAR%, downloading it ... 141 | echo Downloading from: %DOWNLOAD_URL% 142 | ) 143 | 144 | powershell -Command "&{"^ 145 | "$webclient = new-object System.Net.WebClient;"^ 146 | "if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^ 147 | "$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^ 148 | "}"^ 149 | "[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^ 150 | "}" 151 | if "%MVNW_VERBOSE%" == "true" ( 152 | echo Finished downloading %WRAPPER_JAR% 153 | ) 154 | ) 155 | @REM End of extension 156 | 157 | @REM Provide a "standardized" way to retrieve the CLI args that will 158 | @REM work with both Windows and non-Windows executions. 159 | set MAVEN_CMD_LINE_ARGS=%* 160 | 161 | %MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %* 162 | if ERRORLEVEL 1 goto error 163 | goto end 164 | 165 | :error 166 | set ERROR_CODE=1 167 | 168 | :end 169 | @endlocal & set ERROR_CODE=%ERROR_CODE% 170 | 171 | if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost 172 | @REM check for post script, once with legacy .bat ending and once with .cmd ending 173 | if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat" 174 | if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd" 175 | :skipRcPost 176 | 177 | @REM pause the script if MAVEN_BATCH_PAUSE is set to 'on' 178 | if "%MAVEN_BATCH_PAUSE%" == "on" pause 179 | 180 | if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE% 181 | 182 | exit /B %ERROR_CODE% 183 | -------------------------------------------------------------------------------- /pom.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 4.0.0 5 | 6 | org.springframework.boot 7 | spring-boot-starter-parent 8 | 2.4.2 9 | 10 | 11 | com.blibli 12 | belajar-design-patterns 13 | 0.0.1-SNAPSHOT 14 | belajar-design-patterns 15 | Demo project for Spring Boot 16 | 17 | 15 18 | 19 | 20 | 21 | org.springframework.boot 22 | spring-boot-starter-actuator 23 | 24 | 25 | org.springframework.boot 26 | spring-boot-starter-validation 27 | 28 | 29 | org.springframework.boot 30 | spring-boot-starter-web 31 | 32 | 33 | 34 | org.springframework.boot 35 | spring-boot-configuration-processor 36 | true 37 | 38 | 39 | org.projectlombok 40 | lombok 41 | true 42 | 43 | 44 | org.springframework.boot 45 | spring-boot-starter-test 46 | test 47 | 48 | 49 | 50 | 51 | 52 | 53 | org.springframework.boot 54 | spring-boot-maven-plugin 55 | 56 | 57 | 58 | org.projectlombok 59 | lombok 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | -------------------------------------------------------------------------------- /src/main/java/com/blibli/belajar/design/patterns/BelajarDesignPatternsApplication.java: -------------------------------------------------------------------------------- 1 | package com.blibli.belajar.design.patterns; 2 | 3 | import org.springframework.boot.SpringApplication; 4 | import org.springframework.boot.autoconfigure.SpringBootApplication; 5 | 6 | @SpringBootApplication 7 | public class BelajarDesignPatternsApplication { 8 | 9 | public static void main(String[] args) { 10 | SpringApplication.run(BelajarDesignPatternsApplication.class, args); 11 | } 12 | 13 | } 14 | -------------------------------------------------------------------------------- /src/main/java/com/blibli/belajar/design/patterns/adapter/AdapterPattern.java: -------------------------------------------------------------------------------- 1 | package com.blibli.belajar.design.patterns.adapter; 2 | 3 | import org.springframework.boot.SpringApplication; 4 | import org.springframework.boot.actuate.health.Health; 5 | import org.springframework.boot.actuate.health.HealthIndicator; 6 | import org.springframework.boot.autoconfigure.SpringBootApplication; 7 | import org.springframework.context.annotation.Bean; 8 | 9 | public class AdapterPattern { 10 | 11 | public static class MyHealthIndicator implements HealthIndicator { 12 | 13 | @Override 14 | public Health health() { 15 | // logic 16 | return Health.up().build(); 17 | } 18 | } 19 | 20 | public static class MyDownHealthIndicator implements HealthIndicator { 21 | 22 | @Override 23 | public Health health() { 24 | // logic 25 | return Health.down().build(); 26 | } 27 | } 28 | 29 | @SpringBootApplication 30 | public static class Application { 31 | 32 | @Bean 33 | public MyHealthIndicator myHealthIndicator(){ 34 | return new MyHealthIndicator(); 35 | } 36 | 37 | @Bean 38 | public MyDownHealthIndicator myDownHealthIndicator(){ 39 | return new MyDownHealthIndicator(); 40 | } 41 | 42 | } 43 | 44 | public static void main(String[] args) { 45 | SpringApplication.run(Application.class); 46 | } 47 | 48 | } 49 | -------------------------------------------------------------------------------- /src/main/java/com/blibli/belajar/design/patterns/builder/BuilderApplication.java: -------------------------------------------------------------------------------- 1 | package com.blibli.belajar.design.patterns.builder; 2 | 3 | import lombok.*; 4 | 5 | import java.util.Arrays; 6 | import java.util.Date; 7 | import java.util.List; 8 | 9 | public class BuilderApplication { 10 | 11 | @Builder 12 | @Data 13 | @AllArgsConstructor 14 | @NoArgsConstructor 15 | public static class Mahasiswa { 16 | 17 | private String nim; 18 | private String nama; 19 | private String alamat; 20 | private Date tanggalLahir; 21 | @Singular("hobi") 22 | private List hobi; 23 | 24 | } 25 | 26 | public static void main(String[] args) { 27 | 28 | Mahasiswa mahasiswa1 = new Mahasiswa(); 29 | mahasiswa1.setNim("121212"); 30 | mahasiswa1.setNama("Eko"); 31 | mahasiswa1.setAlamat("Indonesia"); 32 | mahasiswa1.setTanggalLahir(new Date()); 33 | mahasiswa1.setHobi(Arrays.asList("Game", "Coding")); 34 | 35 | Mahasiswa mahasiswa2 = Mahasiswa.builder() 36 | .nim("12134") 37 | .nama("EKo") 38 | .alamat("Indonesia") 39 | .tanggalLahir(new Date()) 40 | .hobi("Game") 41 | .hobi("Coding") 42 | .hobi("Reading") 43 | .build(); 44 | 45 | System.out.println(mahasiswa1); 46 | System.out.println(mahasiswa2); 47 | 48 | } 49 | 50 | } 51 | -------------------------------------------------------------------------------- /src/main/java/com/blibli/belajar/design/patterns/chain/ChainApplication.java: -------------------------------------------------------------------------------- 1 | package com.blibli.belajar.design.patterns.chain; 2 | 3 | import lombok.AllArgsConstructor; 4 | import lombok.Builder; 5 | import lombok.Data; 6 | import lombok.NoArgsConstructor; 7 | import org.springframework.boot.SpringApplication; 8 | import org.springframework.boot.autoconfigure.SpringBootApplication; 9 | import org.springframework.http.MediaType; 10 | import org.springframework.stereotype.Component; 11 | import org.springframework.util.StringUtils; 12 | import org.springframework.web.bind.annotation.GetMapping; 13 | import org.springframework.web.bind.annotation.RestController; 14 | import org.springframework.web.servlet.HandlerInterceptor; 15 | import org.springframework.web.servlet.ModelAndView; 16 | import org.springframework.web.servlet.config.annotation.InterceptorRegistry; 17 | import org.springframework.web.servlet.config.annotation.WebMvcConfigurer; 18 | 19 | import javax.servlet.http.HttpServletRequest; 20 | import javax.servlet.http.HttpServletResponse; 21 | 22 | public class ChainApplication { 23 | 24 | @Data 25 | @AllArgsConstructor 26 | @NoArgsConstructor 27 | @Builder 28 | public static class Contoh { 29 | private String name; 30 | } 31 | 32 | @SpringBootApplication 33 | public static class Application { 34 | 35 | @RestController 36 | public static class HelloController { 37 | 38 | @GetMapping(value = "/", produces = MediaType.APPLICATION_JSON_VALUE) 39 | public Contoh helloWorld() { 40 | // pasti udah LOGIN 41 | return Contoh.builder().name("Hello World").build(); 42 | } 43 | 44 | } 45 | 46 | public static class AuthInterceptor implements HandlerInterceptor { 47 | 48 | @Override 49 | public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { 50 | String xApi = request.getHeader("X-API"); 51 | if (StringUtils.hasText(xApi)) { 52 | return true; 53 | } else { 54 | response.setStatus(HttpServletResponse.SC_UNAUTHORIZED); 55 | return false; 56 | } 57 | } 58 | } 59 | 60 | @Component 61 | public static class WebConfiguration implements WebMvcConfigurer { 62 | 63 | @Override 64 | public void addInterceptors(InterceptorRegistry registry) { 65 | registry.addInterceptor(new AuthInterceptor()); 66 | } 67 | } 68 | 69 | } 70 | 71 | 72 | public static void main(String[] args) { 73 | SpringApplication.run(Application.class); 74 | } 75 | 76 | } 77 | -------------------------------------------------------------------------------- /src/main/java/com/blibli/belajar/design/patterns/di/DependencyInjectionApplication.java: -------------------------------------------------------------------------------- 1 | package com.blibli.belajar.design.patterns.di; 2 | 3 | import lombok.Data; 4 | import org.springframework.beans.factory.annotation.Autowired; 5 | import org.springframework.boot.SpringApplication; 6 | import org.springframework.boot.autoconfigure.SpringBootApplication; 7 | import org.springframework.context.ApplicationContext; 8 | import org.springframework.context.annotation.Bean; 9 | import org.springframework.context.annotation.Scope; 10 | import org.springframework.stereotype.Component; 11 | 12 | public class DependencyInjectionApplication { 13 | 14 | @SpringBootApplication 15 | public static class Application { 16 | 17 | // @Bean 18 | // public Foo foo(){ 19 | // return new Foo(); 20 | // } 21 | 22 | @Component 23 | public static class Foo { 24 | 25 | private Bar bar; 26 | 27 | public Foo(Bar bar) { 28 | this.bar = bar; 29 | } 30 | } 31 | 32 | @Component 33 | @Data 34 | public static class Bar { 35 | 36 | private Foo foo; 37 | 38 | public Bar(Foo foo) { 39 | this.foo = foo; 40 | } 41 | } 42 | 43 | } 44 | 45 | public static void main(String[] args) { 46 | ApplicationContext context = SpringApplication.run(Application.class); 47 | 48 | Application.Foo foo = context.getBean(Application.Foo.class); 49 | Application.Bar bar = context.getBean(Application.Bar.class); 50 | 51 | System.out.println(foo == bar.getFoo()); 52 | } 53 | 54 | } 55 | -------------------------------------------------------------------------------- /src/main/java/com/blibli/belajar/design/patterns/dynamicmodule/DynamicModuleApplication.java: -------------------------------------------------------------------------------- 1 | package com.blibli.belajar.design.patterns.dynamicmodule; 2 | 3 | import org.springframework.boot.SpringApplication; 4 | import org.springframework.boot.autoconfigure.SpringBootApplication; 5 | 6 | public class DynamicModuleApplication { 7 | 8 | @SpringBootApplication 9 | public static class Application { 10 | 11 | } 12 | 13 | public static void main(String[] args) { 14 | SpringApplication.run(Application.class); 15 | } 16 | 17 | } 18 | -------------------------------------------------------------------------------- /src/main/java/com/blibli/belajar/design/patterns/facade/FacadeApplication.java: -------------------------------------------------------------------------------- 1 | package com.blibli.belajar.design.patterns.facade; 2 | 3 | import lombok.Setter; 4 | import org.springframework.beans.factory.annotation.Autowired; 5 | import org.springframework.beans.factory.annotation.Qualifier; 6 | import org.springframework.boot.SpringApplication; 7 | import org.springframework.boot.autoconfigure.SpringBootApplication; 8 | import org.springframework.context.ApplicationContext; 9 | import org.springframework.context.annotation.Bean; 10 | import org.springframework.context.annotation.Primary; 11 | import org.springframework.stereotype.Component; 12 | 13 | public class FacadeApplication { 14 | 15 | public static interface AddressService { 16 | 17 | void save(String customerId, String address, String city); 18 | 19 | void remove(String customerId, String address, String city); 20 | 21 | void update(String customerId, String address, String city); 22 | 23 | } 24 | 25 | public static class AddressController { 26 | 27 | @Setter 28 | private AddressService addressService; 29 | 30 | public void saveAddress(String customerId, String address, String city) { 31 | System.out.println("Controller"); 32 | addressService.save(customerId, address, city); 33 | } 34 | 35 | } 36 | 37 | public static class AddressServiceImplPostgre implements AddressService { 38 | 39 | @Override 40 | public void save(String customerId, String address, String city) { 41 | System.out.println("Complicated Implementation Postgre"); 42 | } 43 | 44 | @Override 45 | public void remove(String customerId, String address, String city) { 46 | System.out.println("Complicated Implementation Postgre"); 47 | } 48 | 49 | @Override 50 | public void update(String customerId, String address, String city) { 51 | System.out.println("Complicated Implementation Postgre"); 52 | } 53 | } 54 | 55 | public static class AddressServiceImplMongo implements AddressService { 56 | 57 | @Override 58 | public void save(String customerId, String address, String city) { 59 | System.out.println("Complicated Implementation mongo"); 60 | } 61 | 62 | @Override 63 | public void remove(String customerId, String address, String city) { 64 | System.out.println("Complicated Implementation mongo"); 65 | } 66 | 67 | @Override 68 | public void update(String customerId, String address, String city) { 69 | System.out.println("Complicated Implementation mongo"); 70 | } 71 | } 72 | 73 | @SpringBootApplication 74 | public static class Application { 75 | 76 | public AddressService addressServicePostgre() { 77 | return new AddressServiceImplPostgre(); 78 | } 79 | 80 | @Bean 81 | public AddressService addressServiceMongo() { 82 | return new AddressServiceImplMongo(); 83 | } 84 | 85 | public AddressController addressController(AddressService addressService) { 86 | AddressController controller = new AddressController(); 87 | controller.setAddressService(addressService); 88 | return controller; 89 | } 90 | 91 | } 92 | 93 | public static void main(String[] args) { 94 | ApplicationContext context = SpringApplication.run(Application.class); 95 | AddressController controller = context.getBean(AddressController.class); 96 | 97 | controller.saveAddress("", "", ""); 98 | } 99 | 100 | } 101 | -------------------------------------------------------------------------------- /src/main/java/com/blibli/belajar/design/patterns/factory/FactoryApplication.java: -------------------------------------------------------------------------------- 1 | package com.blibli.belajar.design.patterns.factory; 2 | 3 | import lombok.AllArgsConstructor; 4 | import lombok.Data; 5 | import org.springframework.beans.factory.FactoryBean; 6 | import org.springframework.boot.SpringApplication; 7 | import org.springframework.boot.autoconfigure.SpringBootApplication; 8 | import org.springframework.context.ApplicationContext; 9 | import org.springframework.context.annotation.Bean; 10 | 11 | public class FactoryApplication { 12 | 13 | @Data 14 | @AllArgsConstructor 15 | public static class Database { 16 | 17 | private String host; 18 | private Integer port; 19 | private String username; 20 | private String password; 21 | 22 | } 23 | 24 | public static class DatabaseFactory implements FactoryBean { 25 | 26 | @Override 27 | public Database getObject() throws Exception { 28 | Database database = new Database("localhost", 1000, "admin", "admin"); 29 | return database; 30 | } 31 | 32 | @Override 33 | public Class getObjectType() { 34 | return Database.class; 35 | } 36 | } 37 | 38 | @SpringBootApplication 39 | public static class Configuration { 40 | 41 | @Bean 42 | public FactoryBean database(){ 43 | return new DatabaseFactory(); 44 | } 45 | 46 | } 47 | 48 | public static void main(String[] args) { 49 | ApplicationContext context = SpringApplication.run(Configuration.class); 50 | 51 | Database database = context.getBean(Database.class); 52 | System.out.println(database); 53 | } 54 | 55 | } 56 | -------------------------------------------------------------------------------- /src/main/java/com/blibli/belajar/design/patterns/iterator/IteratorApplication.java: -------------------------------------------------------------------------------- 1 | package com.blibli.belajar.design.patterns.iterator; 2 | 3 | import lombok.AllArgsConstructor; 4 | import lombok.Builder; 5 | import lombok.Data; 6 | import lombok.NoArgsConstructor; 7 | import org.springframework.boot.SpringApplication; 8 | import org.springframework.boot.autoconfigure.SpringBootApplication; 9 | import org.springframework.context.ApplicationContext; 10 | import org.springframework.context.annotation.Bean; 11 | 12 | import java.util.Collection; 13 | import java.util.Map; 14 | 15 | public class IteratorApplication { 16 | 17 | public enum PaymentType { 18 | CREDIT_CARD, BCA, MANDIRI, BRI 19 | } 20 | 21 | @Data 22 | @Builder 23 | @AllArgsConstructor 24 | @NoArgsConstructor 25 | public static class Payment { 26 | private PaymentType paymentType; 27 | private Long amount; 28 | } 29 | 30 | public static interface PaymentService { 31 | 32 | boolean isSupport(PaymentType paymentType); 33 | 34 | void pay(Payment payment); 35 | 36 | } 37 | 38 | public static class CreditCardPaymentService implements PaymentService { 39 | 40 | @Override 41 | public boolean isSupport(PaymentType paymentType) { 42 | return paymentType.equals(PaymentType.CREDIT_CARD); 43 | } 44 | 45 | @Override 46 | public void pay(Payment payment) { 47 | System.out.println("Bayar Credit Card"); 48 | } 49 | } 50 | 51 | public static class MandiriPaymentService implements PaymentService { 52 | 53 | @Override 54 | public boolean isSupport(PaymentType paymentType) { 55 | return paymentType.equals(PaymentType.MANDIRI); 56 | } 57 | 58 | @Override 59 | public void pay(Payment payment) { 60 | System.out.println("Bayar Mandiri"); 61 | } 62 | } 63 | 64 | public static class BCAPaymentService implements PaymentService { 65 | 66 | @Override 67 | public boolean isSupport(PaymentType paymentType) { 68 | return paymentType.equals(PaymentType.BCA); 69 | } 70 | 71 | @Override 72 | public void pay(Payment payment) { 73 | System.out.println("Bayar BCA"); 74 | } 75 | } 76 | 77 | public static class BRIPaymentService implements PaymentService { 78 | 79 | @Override 80 | public boolean isSupport(PaymentType paymentType) { 81 | return paymentType.equals(PaymentType.BRI); 82 | } 83 | 84 | @Override 85 | public void pay(Payment payment) { 86 | System.out.println("Bayar BRI"); 87 | } 88 | } 89 | 90 | @SpringBootApplication 91 | public static class Application { 92 | 93 | @Bean 94 | public CreditCardPaymentService creditCardPaymentService(){ 95 | return new CreditCardPaymentService(); 96 | } 97 | 98 | @Bean 99 | public MandiriPaymentService mandiriPaymentService(){ 100 | return new MandiriPaymentService(); 101 | } 102 | 103 | @Bean 104 | public BCAPaymentService bcaPaymentService(){ 105 | return new BCAPaymentService(); 106 | } 107 | 108 | @Bean 109 | public BRIPaymentService briPaymentService(){ 110 | return new BRIPaymentService(); 111 | } 112 | 113 | } 114 | 115 | public static void main(String[] args) { 116 | ApplicationContext context = SpringApplication.run(Application.class); 117 | 118 | Payment payment = Payment.builder().paymentType(PaymentType.BRI).amount(1000000L).build(); 119 | 120 | context.getBeansOfType(PaymentService.class).values() 121 | .stream() 122 | .filter(paymentService -> paymentService.isSupport(payment.getPaymentType())) 123 | .findFirst() 124 | .ifPresent(paymentService -> paymentService.pay(payment)); 125 | 126 | // if(payment.getPaymentType() == PaymentType.CREDIT_CARD){ 127 | // PaymentService paymentService = context.getBean("creditCardPaymentService", PaymentService.class); 128 | // paymentService.pay(payment); 129 | // }else if(payment.getPaymentType() == PaymentType.MANDIRI){ 130 | // PaymentService paymentService = context.getBean("mandiriPaymentService", PaymentService.class); 131 | // paymentService.pay(payment); 132 | // }else if(payment.getPaymentType() == PaymentType.BCA){ 133 | // PaymentService paymentService = context.getBean("bcaPaymentService", PaymentService.class); 134 | // paymentService.pay(payment); 135 | // } 136 | 137 | } 138 | 139 | } 140 | -------------------------------------------------------------------------------- /src/main/java/com/blibli/belajar/design/patterns/module/MyModuleConfiguration.java: -------------------------------------------------------------------------------- 1 | package com.blibli.belajar.design.patterns.module; 2 | 3 | 4 | import org.springframework.context.annotation.ComponentScan; 5 | import org.springframework.context.annotation.Configuration; 6 | import org.springframework.web.bind.annotation.GetMapping; 7 | import org.springframework.web.bind.annotation.RestController; 8 | 9 | @Configuration 10 | @ComponentScan 11 | public class MyModuleConfiguration { 12 | 13 | @RestController 14 | public static class MyModuleController { 15 | 16 | @GetMapping("/my-module") 17 | public String index() { 18 | return "MY MODULE CONTROLLER"; 19 | } 20 | 21 | } 22 | 23 | } 24 | -------------------------------------------------------------------------------- /src/main/java/com/blibli/belajar/design/patterns/observer/ObserverApplication.java: -------------------------------------------------------------------------------- 1 | package com.blibli.belajar.design.patterns.observer; 2 | 3 | import lombok.*; 4 | import org.springframework.boot.SpringApplication; 5 | import org.springframework.boot.autoconfigure.SpringBootApplication; 6 | import org.springframework.context.*; 7 | import org.springframework.context.annotation.Bean; 8 | 9 | public class ObserverApplication { 10 | 11 | @Data 12 | @Builder 13 | @AllArgsConstructor 14 | @NoArgsConstructor 15 | public static class Product { 16 | 17 | private String id; 18 | private String name; 19 | 20 | } 21 | 22 | public static class Customer { 23 | 24 | } 25 | 26 | public static class ProductEvent extends ApplicationEvent { 27 | 28 | public ProductEvent(Product source) { 29 | super(source); 30 | } 31 | } 32 | 33 | public static class CustomerEvent extends ApplicationEvent { 34 | 35 | public CustomerEvent(Customer source) { 36 | super(source); 37 | } 38 | } 39 | 40 | public static class ProductRepository implements ApplicationEventPublisherAware { 41 | 42 | @Setter 43 | private ApplicationEventPublisher applicationEventPublisher; 44 | 45 | public void save(Product product) { 46 | System.out.println("Done save to database"); 47 | applicationEventPublisher.publishEvent(new ProductEvent(product)); 48 | applicationEventPublisher.publishEvent(new CustomerEvent(new Customer())); 49 | } 50 | 51 | } 52 | 53 | public static class MessageBrokerObserver implements ApplicationListener { 54 | 55 | @Override 56 | public void onApplicationEvent(ProductEvent event) { 57 | System.out.println("Kirim ke message broker"); 58 | } 59 | } 60 | 61 | public static class RedisObserver implements ApplicationListener { 62 | 63 | @Override 64 | public void onApplicationEvent(ApplicationEvent event) { 65 | if (event instanceof ProductEvent) { 66 | System.out.println("Kirim product ke redis server"); 67 | } else if (event instanceof CustomerEvent) { 68 | System.out.println("Kirim customer ke redis server"); 69 | } 70 | } 71 | } 72 | 73 | public static class LogObserver implements ApplicationListener { 74 | 75 | @Override 76 | public void onApplicationEvent(ProductEvent event) { 77 | System.out.println("Kirim ke log server"); 78 | } 79 | } 80 | 81 | @SpringBootApplication 82 | public static class Application { 83 | 84 | @Bean 85 | public ProductRepository productRepository() { 86 | return new ProductRepository(); 87 | } 88 | 89 | @Bean 90 | public MessageBrokerObserver messageBrokerObserver() { 91 | return new MessageBrokerObserver(); 92 | } 93 | 94 | public RedisObserver redisObserver() { 95 | return new RedisObserver(); 96 | } 97 | 98 | @Bean 99 | public LogObserver logObserver() { 100 | return new LogObserver(); 101 | } 102 | 103 | } 104 | 105 | public static void main(String[] args) { 106 | ApplicationContext context = SpringApplication.run(Application.class); 107 | ProductRepository productRepository = context.getBean(ProductRepository.class); 108 | 109 | productRepository.save(new Product("1", "ipon")); 110 | } 111 | 112 | } 113 | -------------------------------------------------------------------------------- /src/main/java/com/blibli/belajar/design/patterns/prototype/PrototypeApplication.java: -------------------------------------------------------------------------------- 1 | package com.blibli.belajar.design.patterns.prototype; 2 | 3 | import lombok.*; 4 | import org.springframework.beans.BeanUtils; 5 | import org.springframework.boot.SpringApplication; 6 | import org.springframework.boot.autoconfigure.SpringBootApplication; 7 | import org.springframework.context.ApplicationContext; 8 | import org.springframework.context.annotation.Bean; 9 | import org.springframework.context.annotation.Scope; 10 | 11 | public class PrototypeApplication { 12 | 13 | @Data 14 | @Builder 15 | @AllArgsConstructor 16 | @NoArgsConstructor 17 | public static class Customer { 18 | 19 | private String id; 20 | private String name; 21 | private String category; 22 | private Integer discount; 23 | 24 | } 25 | 26 | @SpringBootApplication 27 | public static class Configuration { 28 | 29 | @Bean("standardCustomer") 30 | @Scope("prototype") 31 | public Customer standardCustomer(){ 32 | return Customer.builder() 33 | .category("STANDARD") 34 | .discount(10) 35 | .build(); 36 | } 37 | 38 | @Bean("premiumCustomer") 39 | @Scope("prototype") 40 | public Customer premiumCustomer(){ 41 | return Customer.builder() 42 | .category("PREMIUM") 43 | .discount(50) 44 | .build(); 45 | } 46 | 47 | } 48 | 49 | public static void main(String[] args) { 50 | 51 | ApplicationContext context = SpringApplication.run(Configuration.class); 52 | Customer customerStandard1 = context.getBean("standardCustomer", Customer.class); 53 | Customer customerStandard2 = context.getBean("standardCustomer", Customer.class); 54 | Customer customerStandard3 = context.getBean("standardCustomer", Customer.class); 55 | 56 | Customer premiumCustomer1 = context.getBean("premiumCustomer", Customer.class); 57 | Customer premiumCustomer2 = context.getBean("premiumCustomer", Customer.class); 58 | Customer premiumCustomer3 = context.getBean("premiumCustomer", Customer.class); 59 | 60 | System.out.println(customerStandard1 == customerStandard2); 61 | System.out.println(customerStandard2 == customerStandard3); 62 | 63 | System.out.println(customerStandard1); 64 | System.out.println(customerStandard2); 65 | System.out.println(customerStandard3); 66 | 67 | System.out.println(premiumCustomer1); 68 | System.out.println(premiumCustomer2); 69 | System.out.println(premiumCustomer3); 70 | 71 | // Customer customerStandard1 = Customer.builder().id("1").name("Eko"). 72 | // category("STANDARD").discount(10).build(); 73 | // 74 | // Customer customerStandard2 = new Customer(); 75 | // BeanUtils.copyProperties(customerStandard1, customerStandard2); 76 | // 77 | // Customer customerStandard3 = Customer.builder().id("1").name("Eko"). 78 | // category(customerStandard1.getCategory()).discount(customerStandard1.getDiscount()).build(); 79 | // 80 | // Customer customerStandard4 = Customer.builder().id("1").name("Eko"). 81 | // category(customerStandard1.getCategory()).discount(customerStandard1.getDiscount()).build(); 82 | 83 | } 84 | 85 | } 86 | -------------------------------------------------------------------------------- /src/main/java/com/blibli/belajar/design/patterns/proxy/ProxyApplication.java: -------------------------------------------------------------------------------- 1 | package com.blibli.belajar.design.patterns.proxy; 2 | 3 | import org.aopalliance.intercept.MethodInterceptor; 4 | import org.aopalliance.intercept.MethodInvocation; 5 | import org.springframework.aop.framework.ProxyFactoryBean; 6 | import org.springframework.boot.SpringApplication; 7 | import org.springframework.boot.autoconfigure.SpringBootApplication; 8 | import org.springframework.context.ApplicationContext; 9 | import org.springframework.context.annotation.Bean; 10 | 11 | public class ProxyApplication { 12 | 13 | public static interface CustomerService { 14 | 15 | void save(String id, String name); 16 | 17 | void update(String id, String name); 18 | 19 | } 20 | 21 | public static class CustomerServiceImpl implements CustomerService { 22 | 23 | @Override 24 | public void save(String id, String name) { 25 | System.out.println("Save ke database"); 26 | } 27 | 28 | @Override 29 | public void update(String id, String name) { 30 | System.out.println("Update ke database"); 31 | } 32 | } 33 | 34 | public static class LogInterceptor implements MethodInterceptor { 35 | 36 | @Override 37 | public Object invoke(MethodInvocation invocation) throws Throwable { 38 | try { 39 | System.out.println("Manggil method " + invocation.getMethod()); 40 | return invocation.proceed(); 41 | } finally { 42 | System.out.println("Selesai method " + invocation.getMethod()); 43 | } 44 | } 45 | } 46 | 47 | public static class ValidationInterceptor implements MethodInterceptor { 48 | 49 | @Override 50 | public Object invoke(MethodInvocation invocation) throws Throwable { 51 | 52 | Object[] arguments = invocation.getArguments(); 53 | for (Object argument : arguments) { 54 | if(argument instanceof String){ 55 | String value = (String) argument; 56 | if(value.equals("")){ 57 | throw new RuntimeException("argument tidak boleh string kosong"); 58 | } 59 | } 60 | } 61 | 62 | return invocation.proceed(); 63 | } 64 | } 65 | 66 | @SpringBootApplication 67 | public static class Application { 68 | 69 | @Bean 70 | public ProxyFactoryBean customerService() { 71 | //return new CustomerServiceImpl(); 72 | ProxyFactoryBean factoryBean = new ProxyFactoryBean(); 73 | factoryBean.setInterfaces(CustomerService.class); 74 | factoryBean.setTarget(new CustomerServiceImpl()); 75 | factoryBean.setInterceptorNames("logInterceptor", "validationInterceptor"); 76 | return factoryBean; 77 | } 78 | 79 | @Bean("logInterceptor") 80 | public LogInterceptor logInterceptor() { 81 | return new LogInterceptor(); 82 | } 83 | 84 | @Bean("validationInterceptor") 85 | public ValidationInterceptor validationInterceptor(){ 86 | return new ValidationInterceptor(); 87 | } 88 | 89 | } 90 | 91 | public static void main(String[] args) { 92 | ApplicationContext context = SpringApplication.run(Application.class); 93 | CustomerService customerService = context.getBean(CustomerService.class); 94 | customerService.save("1", "Eko"); 95 | customerService.update("1", "Eko"); 96 | customerService.save("", ""); 97 | 98 | } 99 | 100 | } 101 | -------------------------------------------------------------------------------- /src/main/java/com/blibli/belajar/design/patterns/resolver/ResolverApplication.java: -------------------------------------------------------------------------------- 1 | package com.blibli.belajar.design.patterns.resolver; 2 | 3 | import lombok.AllArgsConstructor; 4 | import lombok.Builder; 5 | import lombok.Data; 6 | import lombok.NoArgsConstructor; 7 | import org.springframework.boot.SpringApplication; 8 | import org.springframework.boot.autoconfigure.SpringBootApplication; 9 | import org.springframework.core.MethodParameter; 10 | import org.springframework.http.MediaType; 11 | import org.springframework.stereotype.Component; 12 | import org.springframework.web.bind.annotation.GetMapping; 13 | import org.springframework.web.bind.annotation.PathVariable; 14 | import org.springframework.web.bind.annotation.RequestHeader; 15 | import org.springframework.web.bind.annotation.RestController; 16 | import org.springframework.web.bind.support.WebDataBinderFactory; 17 | import org.springframework.web.context.request.NativeWebRequest; 18 | import org.springframework.web.method.support.HandlerMethodArgumentResolver; 19 | import org.springframework.web.method.support.ModelAndViewContainer; 20 | import org.springframework.web.servlet.config.annotation.InterceptorRegistry; 21 | import org.springframework.web.servlet.config.annotation.WebMvcConfigurer; 22 | 23 | import java.util.List; 24 | 25 | public class ResolverApplication { 26 | 27 | @Data 28 | @AllArgsConstructor 29 | @NoArgsConstructor 30 | @Builder 31 | public static class Member { 32 | private String id; 33 | private String name; 34 | } 35 | 36 | @Data 37 | @Builder 38 | @AllArgsConstructor 39 | @NoArgsConstructor 40 | public static class MandatoryParameter { 41 | private String requestId; 42 | private String userId; 43 | private String serviceId; 44 | private Long timestamp; 45 | } 46 | 47 | @SpringBootApplication 48 | public static class Application { 49 | 50 | @Component 51 | public static class WebConfiguration implements WebMvcConfigurer { 52 | 53 | @Override 54 | public void addArgumentResolvers(List resolvers) { 55 | resolvers.add(new MandatoryParameterArgumentResolver()); 56 | } 57 | } 58 | 59 | public static class MandatoryParameterArgumentResolver implements HandlerMethodArgumentResolver { 60 | 61 | @Override 62 | public boolean supportsParameter(MethodParameter parameter) { 63 | return MandatoryParameter.class.equals(parameter.getParameterType()); 64 | } 65 | 66 | @Override 67 | public Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer, NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception { 68 | System.out.println("Manggil Mandatory Parameter Resolver"); 69 | return MandatoryParameter.builder() 70 | .userId(webRequest.getHeader("X-User-Id")) 71 | .serviceId(webRequest.getHeader("X-Service-Id")) 72 | .requestId(webRequest.getHeader("X-Request-Id")) 73 | .timestamp(Long.valueOf(webRequest.getHeader("X-Timestamp"))) 74 | .build(); 75 | } 76 | } 77 | 78 | @RestController 79 | public static class SampleController { 80 | 81 | @GetMapping(value = "/api/members/{id}", produces = MediaType.APPLICATION_JSON_VALUE) 82 | public Member getMember(@PathVariable("id") String memberId, 83 | MandatoryParameter mandatoryParameter){ 84 | 85 | System.out.println(mandatoryParameter); 86 | 87 | return Member.builder().id(memberId).name("Eko").build(); 88 | } 89 | 90 | @GetMapping(value = "/api/members2/{id}", produces = MediaType.APPLICATION_JSON_VALUE) 91 | public Member getMember2(@PathVariable("id") String memberId){ 92 | 93 | return Member.builder().id(memberId).name("Eko").build(); 94 | } 95 | 96 | } 97 | 98 | } 99 | 100 | public static void main(String[] args) { 101 | SpringApplication.run(Application.class); 102 | } 103 | 104 | } 105 | -------------------------------------------------------------------------------- /src/main/java/com/blibli/belajar/design/patterns/singleton/SingletonApplication.java: -------------------------------------------------------------------------------- 1 | package com.blibli.belajar.design.patterns.singleton; 2 | 3 | import org.springframework.boot.SpringApplication; 4 | import org.springframework.boot.autoconfigure.SpringBootApplication; 5 | import org.springframework.context.ApplicationContext; 6 | import org.springframework.context.annotation.Bean; 7 | 8 | public class SingletonApplication { 9 | 10 | @SpringBootApplication 11 | public static class Configuration { 12 | 13 | @Bean 14 | public Contoh contoh(){ 15 | return new Contoh(); 16 | } 17 | 18 | } 19 | 20 | public static class Contoh { 21 | } 22 | 23 | public static void main(String[] args) { 24 | ApplicationContext context = SpringApplication.run(Configuration.class); 25 | 26 | Contoh contoh1 = context.getBean(Contoh.class); 27 | Contoh contoh2 = context.getBean(Contoh.class); 28 | 29 | System.out.println(contoh1 == contoh2); // true 30 | } 31 | 32 | } 33 | -------------------------------------------------------------------------------- /src/main/resources/META-INF/spring.factories: -------------------------------------------------------------------------------- 1 | org.springframework.boot.autoconfigure.EnableAutoConfiguration=\ 2 | com.blibli.belajar.design.patterns.module.MyModuleConfiguration -------------------------------------------------------------------------------- /src/main/resources/application.properties: -------------------------------------------------------------------------------- 1 | management.endpoint.health.show-details=always 2 | -------------------------------------------------------------------------------- /src/test/java/com/blibli/belajar/design/patterns/BelajarDesignPatternsApplicationTests.java: -------------------------------------------------------------------------------- 1 | package com.blibli.belajar.design.patterns; 2 | 3 | import org.junit.jupiter.api.Test; 4 | import org.springframework.boot.test.context.SpringBootTest; 5 | 6 | @SpringBootTest 7 | class BelajarDesignPatternsApplicationTests { 8 | 9 | @Test 10 | void contextLoads() { 11 | } 12 | 13 | } 14 | -------------------------------------------------------------------------------- /test.http: -------------------------------------------------------------------------------- 1 | GET http://localhost:8080/ 2 | X-API: secret 3 | Accept: application/json 4 | 5 | ### 6 | 7 | GET http://localhost:8080/actuator/health 8 | X-API: secret 9 | Accept: application/json 10 | 11 | ### 12 | 13 | GET http://localhost:8080/api/members/12345 14 | Accept: application/json 15 | X-Request-Id: requestId 16 | X-User-Id: eko 17 | X-Timestamp: 1221324312 18 | X-Service-Id: frontend 19 | 20 | ### 21 | 22 | GET http://localhost:8080/api/members2/12345 23 | Accept: application/json 24 | X-Request-Id: requestId 25 | X-User-Id: eko 26 | X-Timestamp: 1221324312 27 | X-Service-Id: frontend --------------------------------------------------------------------------------