├── .gitignore ├── .travis.yml ├── LICENSE ├── README.md ├── build.gradle ├── examples └── basic │ ├── build.gradle │ └── src │ ├── main │ └── java │ │ └── com │ │ └── glung │ │ └── redux │ │ ├── Action.java │ │ ├── BasicApplication.java │ │ ├── MyReducer.java │ │ └── ReduxApplication.java │ └── test │ └── java │ └── com │ └── glung │ └── redux │ └── MyReducerTest.java ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── lib ├── build.gradle └── src │ ├── main │ └── java │ │ └── com │ │ └── glung │ │ └── redux │ │ ├── Middlewares.java │ │ └── Store.java │ └── test │ └── java │ └── com │ └── glung │ └── redux │ ├── MiddlewaresTest.java │ └── StoreTest.java └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | .idea 2 | .DS_Store 3 | *.iml 4 | target 5 | .gradle 6 | build 7 | local.properties -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | language: java 2 | jdk: 3 | - oraclejdk7 4 | 5 | # force upgrade Java8 as per https://github.com/travis-ci/travis-ci/issues/4042 (fixes compilation issue) 6 | #addons: 7 | # apt: 8 | # packages: 9 | # - oracle-java8-installer 10 | 11 | # prevent travis running gradle assemble; let the build script do it anyway 12 | install: true 13 | 14 | sudo: false 15 | # as per http://blog.travis-ci.com/2014-12-17-faster-builds-with-container-based-infrastructure/ 16 | 17 | # cache between builds 18 | cache: 19 | directories: 20 | - $HOME/.m2 21 | - $HOME/.gradle 22 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | The MIT License (MIT) 2 | 3 | Copyright (c) 2015 Guillaume Lung 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | 23 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | // This project is unmaintained // 2 | 3 | # ▲▲▲ Redux-java ▲▲▲ 4 | 5 | A java implementation of [jvm-redux-api](https://github.com/jvm-redux/jvm-redux-api) 6 | 7 | # Integration 8 | 9 | ## Gradle 10 | 11 | ``` 12 | allprojects { 13 | repositories { 14 | ... 15 | maven { url 'https://jitpack.io' } 16 | } 17 | } 18 | ``` 19 | 20 | ``` 21 | dependencies { 22 | compile 'com.github.glung:redux-java:1.0' 23 | } 24 | ``` 25 | 26 | ## Maven 27 | ``` 28 | 29 | 30 | jitpack.io 31 | https://jitpack.io 32 | 33 | 34 | ``` 35 | 36 | ``` 37 | 38 | com.github.glung 39 | redux-java 40 | 1.0 41 | 42 | ``` 43 | -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | group GROUP 2 | version VERSION_NAME 3 | 4 | ext { 5 | sourceCompatibilityVersion = JavaVersion.VERSION_1_7 6 | targetCompatibilityVersion = JavaVersion.VERSION_1_7 7 | } 8 | -------------------------------------------------------------------------------- /examples/basic/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'java' 2 | 3 | sourceCompatibility = rootProject.ext.sourceCompatibilityVersion 4 | targetCompatibility = rootProject.ext.targetCompatibilityVersion 5 | 6 | repositories { 7 | mavenCentral() 8 | maven { url "https://jitpack.io" } 9 | } 10 | 11 | dependencies { 12 | compile project(':lib') 13 | 14 | compile 'com.github.jvm-redux.jvm-redux-api:api:2.0.0' 15 | testCompile 'junit:junit:4.12' 16 | } 17 | -------------------------------------------------------------------------------- /examples/basic/src/main/java/com/glung/redux/Action.java: -------------------------------------------------------------------------------- 1 | package com.glung.redux; 2 | 3 | enum Action { 4 | INCREMENT, DECREMENT 5 | } 6 | -------------------------------------------------------------------------------- /examples/basic/src/main/java/com/glung/redux/BasicApplication.java: -------------------------------------------------------------------------------- 1 | package com.glung.redux; 2 | 3 | class BasicApplication { 4 | 5 | public static void main(String[] args) { 6 | final Store.Creator creator = new Store.Creator(); 7 | final ReduxApplication application = new ReduxApplication(creator, System.out); 8 | application.runDemo(); 9 | } 10 | } 11 | -------------------------------------------------------------------------------- /examples/basic/src/main/java/com/glung/redux/MyReducer.java: -------------------------------------------------------------------------------- 1 | package com.glung.redux; 2 | 3 | class MyReducer implements redux.api.Reducer { 4 | @Override 5 | public Integer reduce(Integer state, Object action) { 6 | return action instanceof Action ? reduce(state, (Action) action) : state; 7 | } 8 | 9 | private Integer reduce(Integer state, Action action) { 10 | switch (action) { 11 | case INCREMENT: 12 | return state + 1; 13 | case DECREMENT: 14 | return state - 1; 15 | default: 16 | return state; 17 | } 18 | } 19 | } 20 | -------------------------------------------------------------------------------- /examples/basic/src/main/java/com/glung/redux/ReduxApplication.java: -------------------------------------------------------------------------------- 1 | package com.glung.redux; 2 | 3 | import redux.api.Store; 4 | 5 | import java.io.PrintStream; 6 | 7 | class ReduxApplication { 8 | private final redux.api.Store store; 9 | private final PrintStream stream; 10 | 11 | ReduxApplication(redux.api.Store.Creator storeCreator, PrintStream stream) { 12 | store = storeCreator.create(new MyReducer(), 0); 13 | this.stream = stream; 14 | } 15 | 16 | void runDemo() { 17 | store.subscribe(new MySubscriber(store, stream)); 18 | store.dispatch(Action.INCREMENT); // print 1 19 | store.dispatch(Action.DECREMENT); // print 0 20 | store.dispatch("unknown action"); // print 0 21 | store.dispatch(Action.INCREMENT); // print 1 22 | } 23 | 24 | private static class MySubscriber implements redux.api.Store.Subscriber { 25 | private final redux.api.Store store; 26 | private final PrintStream stream; 27 | 28 | private MySubscriber(Store store, PrintStream stream) { 29 | this.store = store; 30 | this.stream = stream; 31 | } 32 | 33 | @Override 34 | public void onStateChanged() { 35 | stream.println(store.getState()); 36 | } 37 | } 38 | } 39 | -------------------------------------------------------------------------------- /examples/basic/src/test/java/com/glung/redux/MyReducerTest.java: -------------------------------------------------------------------------------- 1 | package com.glung.redux; 2 | 3 | import static org.hamcrest.CoreMatchers.is; 4 | import static org.hamcrest.MatcherAssert.assertThat; 5 | 6 | import org.junit.Test; 7 | 8 | public class MyReducerTest { 9 | 10 | private MyReducer reducer = new MyReducer(); 11 | 12 | @Test 13 | public void ignore_unknown_actions() { 14 | assertThat(reducer.reduce(0, "unknown action"), is(0)); 15 | } 16 | 17 | @Test 18 | public void increment() { 19 | assertThat(reducer.reduce(0, Action.INCREMENT), is(1)); 20 | } 21 | 22 | @Test 23 | public void decrement() { 24 | assertThat(reducer.reduce(0, Action.DECREMENT), is(-1)); 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | GROUP=com.glung.redux 2 | VERSION_NAME=1.0-SNAPSHOT 3 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/glung/redux-java/e21978fb6611ec7d27cd13eec59c8f86c4ca2a41/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Fri Dec 23 11:07:36 CET 2016 2 | distributionBase=GRADLE_USER_HOME 3 | distributionPath=wrapper/dists 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | distributionUrl=https\://services.gradle.org/distributions/gradle-2.13-all.zip 7 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Attempt to set APP_HOME 10 | # Resolve links: $0 may be a link 11 | PRG="$0" 12 | # Need this for relative symlinks. 13 | while [ -h "$PRG" ] ; do 14 | ls=`ls -ld "$PRG"` 15 | link=`expr "$ls" : '.*-> \(.*\)$'` 16 | if expr "$link" : '/.*' > /dev/null; then 17 | PRG="$link" 18 | else 19 | PRG=`dirname "$PRG"`"/$link" 20 | fi 21 | done 22 | SAVED="`pwd`" 23 | cd "`dirname \"$PRG\"`/" >/dev/null 24 | APP_HOME="`pwd -P`" 25 | cd "$SAVED" >/dev/null 26 | 27 | APP_NAME="Gradle" 28 | APP_BASE_NAME=`basename "$0"` 29 | 30 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 31 | DEFAULT_JVM_OPTS="" 32 | 33 | # Use the maximum available, or set MAX_FD != -1 to use that value. 34 | MAX_FD="maximum" 35 | 36 | warn ( ) { 37 | echo "$*" 38 | } 39 | 40 | die ( ) { 41 | echo 42 | echo "$*" 43 | echo 44 | exit 1 45 | } 46 | 47 | # OS specific support (must be 'true' or 'false'). 48 | cygwin=false 49 | msys=false 50 | darwin=false 51 | nonstop=false 52 | case "`uname`" in 53 | CYGWIN* ) 54 | cygwin=true 55 | ;; 56 | Darwin* ) 57 | darwin=true 58 | ;; 59 | MINGW* ) 60 | msys=true 61 | ;; 62 | NONSTOP* ) 63 | nonstop=true 64 | ;; 65 | esac 66 | 67 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 68 | 69 | # Determine the Java command to use to start the JVM. 70 | if [ -n "$JAVA_HOME" ] ; then 71 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 72 | # IBM's JDK on AIX uses strange locations for the executables 73 | JAVACMD="$JAVA_HOME/jre/sh/java" 74 | else 75 | JAVACMD="$JAVA_HOME/bin/java" 76 | fi 77 | if [ ! -x "$JAVACMD" ] ; then 78 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 79 | 80 | Please set the JAVA_HOME variable in your environment to match the 81 | location of your Java installation." 82 | fi 83 | else 84 | JAVACMD="java" 85 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 86 | 87 | Please set the JAVA_HOME variable in your environment to match the 88 | location of your Java installation." 89 | fi 90 | 91 | # Increase the maximum file descriptors if we can. 92 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then 93 | MAX_FD_LIMIT=`ulimit -H -n` 94 | if [ $? -eq 0 ] ; then 95 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 96 | MAX_FD="$MAX_FD_LIMIT" 97 | fi 98 | ulimit -n $MAX_FD 99 | if [ $? -ne 0 ] ; then 100 | warn "Could not set maximum file descriptor limit: $MAX_FD" 101 | fi 102 | else 103 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 104 | fi 105 | fi 106 | 107 | # For Darwin, add options to specify how the application appears in the dock 108 | if $darwin; then 109 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 110 | fi 111 | 112 | # For Cygwin, switch paths to Windows format before running java 113 | if $cygwin ; then 114 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 115 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 116 | JAVACMD=`cygpath --unix "$JAVACMD"` 117 | 118 | # We build the pattern for arguments to be converted via cygpath 119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 120 | SEP="" 121 | for dir in $ROOTDIRSRAW ; do 122 | ROOTDIRS="$ROOTDIRS$SEP$dir" 123 | SEP="|" 124 | done 125 | OURCYGPATTERN="(^($ROOTDIRS))" 126 | # Add a user-defined pattern to the cygpath arguments 127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 129 | fi 130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 131 | i=0 132 | for arg in "$@" ; do 133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 135 | 136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 138 | else 139 | eval `echo args$i`="\"$arg\"" 140 | fi 141 | i=$((i+1)) 142 | done 143 | case $i in 144 | (0) set -- ;; 145 | (1) set -- "$args0" ;; 146 | (2) set -- "$args0" "$args1" ;; 147 | (3) set -- "$args0" "$args1" "$args2" ;; 148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 154 | esac 155 | fi 156 | 157 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules 158 | function splitJvmOpts() { 159 | JVM_OPTS=("$@") 160 | } 161 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS 162 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME" 163 | 164 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@" 165 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | set DIRNAME=%~dp0 12 | if "%DIRNAME%" == "" set DIRNAME=. 13 | set APP_BASE_NAME=%~n0 14 | set APP_HOME=%DIRNAME% 15 | 16 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 17 | set DEFAULT_JVM_OPTS= 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windows variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | if "%@eval[2+2]" == "4" goto 4NT_args 53 | 54 | :win9xME_args 55 | @rem Slurp the command line arguments. 56 | set CMD_LINE_ARGS= 57 | set _SKIP=2 58 | 59 | :win9xME_args_slurp 60 | if "x%~1" == "x" goto execute 61 | 62 | set CMD_LINE_ARGS=%* 63 | goto execute 64 | 65 | :4NT_args 66 | @rem Get arguments from the 4NT Shell from JP Software 67 | set CMD_LINE_ARGS=%$ 68 | 69 | :execute 70 | @rem Setup the command line 71 | 72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 73 | 74 | @rem Execute Gradle 75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 76 | 77 | :end 78 | @rem End local scope for the variables with windows NT shell 79 | if "%ERRORLEVEL%"=="0" goto mainEnd 80 | 81 | :fail 82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 83 | rem the _cmd.exe /c_ return code! 84 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 85 | exit /b 1 86 | 87 | :mainEnd 88 | if "%OS%"=="Windows_NT" endlocal 89 | 90 | :omega 91 | -------------------------------------------------------------------------------- /lib/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'java' 2 | 3 | sourceCompatibility = rootProject.ext.sourceCompatibilityVersion 4 | targetCompatibility = rootProject.ext.targetCompatibilityVersion 5 | 6 | repositories { 7 | mavenCentral() 8 | maven { url "https://jitpack.io" } 9 | } 10 | 11 | dependencies { 12 | compile 'com.github.jvm-redux.jvm-redux-api:api:2.0.0' 13 | testCompile 'com.github.jvm-redux.jvm-redux-api:specs:2.0.0' 14 | } 15 | -------------------------------------------------------------------------------- /lib/src/main/java/com/glung/redux/Middlewares.java: -------------------------------------------------------------------------------- 1 | package com.glung.redux; 2 | 3 | import redux.api.Dispatcher; 4 | import redux.api.Reducer; 5 | import redux.api.Store; 6 | import redux.api.enhancer.Middleware; 7 | 8 | import java.util.Arrays; 9 | import java.util.List; 10 | 11 | public class Middlewares { 12 | 13 | private static class MiddlewareStore implements redux.api.Store { 14 | 15 | private final Dispatcher dispatcher; 16 | private final Store nextStore; 17 | 18 | private MiddlewareStore(Store nextStore, 19 | Dispatcher dispatcher) { 20 | this.nextStore = nextStore; 21 | this.dispatcher = dispatcher; 22 | } 23 | 24 | @Override 25 | public S getState() { 26 | return nextStore.getState(); 27 | } 28 | 29 | @Override 30 | public Subscription subscribe(Subscriber subscriber) { 31 | return nextStore.subscribe(subscriber); 32 | } 33 | 34 | @Override 35 | public void replaceReducer(Reducer reducer) { 36 | nextStore.replaceReducer(reducer); 37 | } 38 | 39 | @Override 40 | public Object dispatch(Object action) { 41 | return dispatcher.dispatch(action); 42 | } 43 | 44 | } 45 | 46 | public static Store.Enhancer applyMiddlewares(final Middleware... middlewares) { 47 | return new Store.Enhancer() { 48 | @Override 49 | public Store.Creator enhance(final Store.Creator next) { 50 | return new Store.Creator() { 51 | @Override 52 | public Store create(final Reducer reducer, final S initialState) { 53 | final Store store = next.create(reducer, initialState); 54 | // This is fqr from ideal but currently it is expected that the Middleware and the Reducer carry the same type. 55 | // This is checked at run time (cf down cast below) 56 | // 57 | // Revisit when needed 58 | return new MiddlewareStore<>(store, createMiddlewareDispatcher(Arrays.asList(middlewares), (Store) store)); 59 | } 60 | }; 61 | } 62 | }; 63 | } 64 | 65 | private static Dispatcher createMiddlewareDispatcher(final List> middlewares, final Store nextStore) { 66 | Dispatcher currentDispatcher = nextStore; 67 | for (int i = middlewares.size() - 1; i >= 0; i--) { 68 | final Middleware nextMiddleware = middlewares.get(i); 69 | currentDispatcher = createNextDispatcher(nextStore, currentDispatcher, nextMiddleware); 70 | } 71 | return currentDispatcher; 72 | } 73 | 74 | private static Dispatcher createNextDispatcher(final Store nextStore, final Dispatcher lastDispatcher, final Middleware nextMiddleware) { 75 | return new Dispatcher() { 76 | @Override 77 | public Object dispatch(Object action) { 78 | return nextMiddleware.dispatch(nextStore, lastDispatcher, action); 79 | } 80 | }; 81 | } 82 | } 83 | -------------------------------------------------------------------------------- /lib/src/main/java/com/glung/redux/Store.java: -------------------------------------------------------------------------------- 1 | package com.glung.redux; 2 | 3 | import redux.api.Reducer; 4 | 5 | import java.util.ArrayList; 6 | import java.util.List; 7 | import java.util.concurrent.atomic.AtomicBoolean; 8 | 9 | public class Store implements redux.api.Store { 10 | 11 | private final AtomicBoolean isReducing = new AtomicBoolean(false); 12 | private final List subscribers = new ArrayList<>(); 13 | 14 | private Reducer reducer; 15 | private S currentState; 16 | 17 | public static redux.api.Store createStore(Reducer reducer, S initialState, Enhancer enhancer) { 18 | final redux.api.Store.Creator creator = enhancer != null ? enhancer.enhance(new Creator()) : new Creator(); 19 | return creator.create(reducer, initialState); 20 | } 21 | 22 | Store(Reducer reducer, S initialState) { 23 | this.currentState = initialState; 24 | setReducer(reducer); 25 | } 26 | 27 | @Override 28 | public S getState() { 29 | return currentState; 30 | } 31 | 32 | @Override 33 | public Subscription subscribe(final Subscriber subscriber) { 34 | subscribers.add(subscriber); 35 | return new Subscription() { 36 | @Override 37 | public void unsubscribe() { 38 | subscribers.remove(subscriber); 39 | } 40 | }; 41 | } 42 | 43 | @Override 44 | public void replaceReducer(Reducer reducer) { 45 | setReducer(reducer); 46 | } 47 | 48 | private void setReducer(Reducer reducer) { 49 | this.reducer = reducer; 50 | this.currentState = this.reducer.reduce(currentState, redux.api.Store.INIT); 51 | } 52 | 53 | @Override 54 | public Object dispatch(Object action) { 55 | assertIsNotReducing(); 56 | 57 | currentState = reduce(action); 58 | notifySubscribers(); 59 | return action; 60 | } 61 | 62 | private void notifySubscribers() { 63 | for (Subscriber subscriber : new ArrayList<>(subscribers)) { 64 | subscriber.onStateChanged(); 65 | } 66 | } 67 | 68 | private void assertIsNotReducing() { 69 | if (isReducing.get()) { 70 | throw new IllegalStateException("Already reducing"); 71 | } 72 | } 73 | 74 | private S reduce(Object action) { 75 | startReducing(); 76 | final S reducedSate = reducer.reduce(currentState, action); 77 | stopReducing(); 78 | return reducedSate; 79 | } 80 | 81 | 82 | private void stopReducing() { 83 | isReducing.set(false); 84 | } 85 | 86 | private void startReducing() { 87 | isReducing.set(true); 88 | } 89 | 90 | public static class Creator implements redux.api.Store.Creator { 91 | 92 | @Override 93 | public redux.api.Store create(Reducer reducer, S initialState) { 94 | return new Store<>(reducer, initialState); 95 | } 96 | } 97 | } 98 | -------------------------------------------------------------------------------- /lib/src/test/java/com/glung/redux/MiddlewaresTest.java: -------------------------------------------------------------------------------- 1 | package com.glung.redux; 2 | 3 | import static com.glung.redux.Middlewares.applyMiddlewares; 4 | import static org.assertj.core.api.Assertions.assertThat; 5 | import static org.mockito.ArgumentMatchers.any; 6 | import static org.mockito.Mockito.mock; 7 | import static org.mockito.Mockito.verify; 8 | import static org.mockito.Mockito.verifyZeroInteractions; 9 | import static org.mockito.Mockito.when; 10 | import static redux.api.helpers.ActionsCreator.addTodo; 11 | 12 | import org.junit.Rule; 13 | import org.junit.Test; 14 | import org.mockito.Mock; 15 | import org.mockito.junit.MockitoJUnit; 16 | import org.mockito.junit.MockitoRule; 17 | import redux.api.Dispatcher; 18 | import redux.api.Reducer; 19 | import redux.api.Store; 20 | import redux.api.enhancer.Middleware; 21 | import redux.api.helpers.Reducers; 22 | import redux.api.helpers.State; 23 | 24 | import java.util.ArrayList; 25 | import java.util.List; 26 | 27 | public class MiddlewaresTest { 28 | 29 | @Rule public MockitoRule mockitoRule = MockitoJUnit.rule(); 30 | @Mock private redux.api.Store.Creator storeCreator; 31 | @Mock private Store storeMock; 32 | 33 | private final List callOrderResult = new ArrayList<>(); 34 | 35 | private Store.Creator enhancedStoreCreator() { 36 | when(storeCreator.create(any(Reducer.class), any(State.class))).thenReturn(storeMock); 37 | 38 | return applyMiddlewares(createMiddleware("ONE"), 39 | createMiddleware("TWO"), 40 | createMiddleware("THREE")) 41 | .enhance(storeCreator); 42 | } 43 | 44 | private Middleware createMiddleware(final String identifier) { 45 | return new Middleware() { 46 | @Override 47 | public Object dispatch(Store store, Dispatcher next, Object action) { 48 | callOrderResult.add(identifier); 49 | return next.dispatch(action); 50 | } 51 | }; 52 | } 53 | 54 | @Test 55 | public void dispatchInvokesMiddlewaresInCorrectOrder() { 56 | final Store store = enhancedStoreCreator().create(Reducers.TODOS, new State()); 57 | 58 | store.dispatch(addTodo("Test")); 59 | 60 | assertThat(callOrderResult).containsExactly("ONE", "TWO", "THREE"); 61 | } 62 | 63 | @Test 64 | public void dispatchForwardsToTheOriginalStore() { 65 | final Object action = addTodo("Test"); 66 | final Object expectedDispatchResult = new Object(); 67 | final Store store = enhancedStoreCreator().create(Reducers.TODOS, new State()); 68 | when(storeMock.dispatch(action)).thenReturn(expectedDispatchResult); 69 | 70 | verifyZeroInteractions(storeMock); 71 | 72 | Object dispatchResult = store.dispatch(action); 73 | 74 | assertThat(dispatchResult).isEqualTo(expectedDispatchResult); 75 | } 76 | 77 | @Test 78 | public void getStateForwardsToTheOriginalStore() { 79 | final Store store = enhancedStoreCreator().create(Reducers.TODOS, new State()); 80 | verifyZeroInteractions(storeMock); 81 | 82 | store.getState(); 83 | 84 | verify(storeMock).getState(); 85 | } 86 | 87 | @Test 88 | public void replaceReducerForwardsToTheOriginalStore() { 89 | final Store store = enhancedStoreCreator().create(Reducers.TODOS, new State()); 90 | verifyZeroInteractions(storeMock); 91 | 92 | store.replaceReducer(Reducers.TODOS_REVERSE); 93 | 94 | verify(storeMock).replaceReducer(Reducers.TODOS_REVERSE); 95 | } 96 | 97 | @Test 98 | public void subscribeForwardsToTheOriginalStore() { 99 | final Store.Subscriber subscriber = mock(Store.Subscriber.class); 100 | final Store.Subscription expectedSubscription = mock(Store.Subscription.class); 101 | final Store store = enhancedStoreCreator().create(Reducers.TODOS, new State()); 102 | when(storeMock.subscribe(subscriber)).thenReturn(expectedSubscription); 103 | 104 | verifyZeroInteractions(storeMock); 105 | 106 | Store.Subscription subscription = store.subscribe(subscriber); 107 | 108 | assertThat(subscription).isEqualTo(expectedSubscription); 109 | } 110 | } 111 | -------------------------------------------------------------------------------- /lib/src/test/java/com/glung/redux/StoreTest.java: -------------------------------------------------------------------------------- 1 | package com.glung.redux; 2 | 3 | import org.jetbrains.annotations.NotNull; 4 | import redux.api.Reducer; 5 | 6 | public class StoreTest extends redux.api.StoreTest { 7 | 8 | @NotNull 9 | @Override 10 | public redux.api.Store createStore(@NotNull Reducer reducer, @NotNull S state) { 11 | return new Store.Creator().create(reducer, state); 12 | } 13 | } 14 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | rootProject.name = 'redux-java' 2 | include 'lib' 3 | include 'examples:basic' 4 | 5 | --------------------------------------------------------------------------------