├── build.gradle ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat └── src └── main ├── java └── org │ └── reactivestreams │ └── examples │ └── Interop101.java └── resources └── logback.xml /build.gradle: -------------------------------------------------------------------------------- 1 | ext { 2 | slf4jVersion = '1.7.10' 3 | logbackVersion = '1.1.2' 4 | 5 | 6 | akkaStreamVersion = '1.0-M5' 7 | reactorVersion = '2.0.1.BUILD-SNAPSHOT' 8 | rxJavaVersion = '1.0.+' 9 | rxJavaRSVersion = '1.0.0' 10 | ratpackVersion = '0.9.15' 11 | 12 | sourceCompatibility = 1.8 13 | targetCompatibility = 1.8 14 | } 15 | 16 | apply plugin: 'java' 17 | 18 | [compileJava, compileTestJava]*.options*.compilerArgs = ["-Xlint:none", "-g"] 19 | 20 | 21 | repositories { 22 | mavenLocal() 23 | mavenCentral() 24 | maven { url 'http://repo.spring.io/libs-snapshot' } 25 | jcenter() 26 | } 27 | 28 | dependencies { 29 | compile "io.projectreactor:reactor-stream:$reactorVersion" 30 | compile "io.projectreactor:reactor-net:$reactorVersion" 31 | 32 | compile "io.reactivex:rxjava:$rxJavaVersion" 33 | compile "io.reactivex:rxjava-reactive-streams:$rxJavaRSVersion" 34 | 35 | compile "com.typesafe.akka:akka-stream-tck-experimental_2.11:$akkaStreamVersion" 36 | 37 | compile "io.ratpack:ratpack-core:$ratpackVersion" 38 | 39 | //log 40 | compile "ch.qos.logback:logback-classic:$logbackVersion" 41 | compile "org.slf4j:jcl-over-slf4j:$slf4jVersion" 42 | } 43 | 44 | task wrapper(type: Wrapper) { 45 | gradleVersion = '2.3' 46 | } 47 | 48 | 49 | 50 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/smaldini/ReactiveStreamsExamples/fba710d3cb6d745ae2a8dd40d2eca1c0e58d0a1e/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Thu Apr 23 10:38:58 BST 2015 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-2.3-all.zip 7 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 10 | DEFAULT_JVM_OPTS="" 11 | 12 | APP_NAME="Gradle" 13 | APP_BASE_NAME=`basename "$0"` 14 | 15 | # Use the maximum available, or set MAX_FD != -1 to use that value. 16 | MAX_FD="maximum" 17 | 18 | warn ( ) { 19 | echo "$*" 20 | } 21 | 22 | die ( ) { 23 | echo 24 | echo "$*" 25 | echo 26 | exit 1 27 | } 28 | 29 | # OS specific support (must be 'true' or 'false'). 30 | cygwin=false 31 | msys=false 32 | darwin=false 33 | case "`uname`" in 34 | CYGWIN* ) 35 | cygwin=true 36 | ;; 37 | Darwin* ) 38 | darwin=true 39 | ;; 40 | MINGW* ) 41 | msys=true 42 | ;; 43 | esac 44 | 45 | # For Cygwin, ensure paths are in UNIX format before anything is touched. 46 | if $cygwin ; then 47 | [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"` 48 | fi 49 | 50 | # Attempt to set APP_HOME 51 | # Resolve links: $0 may be a link 52 | PRG="$0" 53 | # Need this for relative symlinks. 54 | while [ -h "$PRG" ] ; do 55 | ls=`ls -ld "$PRG"` 56 | link=`expr "$ls" : '.*-> \(.*\)$'` 57 | if expr "$link" : '/.*' > /dev/null; then 58 | PRG="$link" 59 | else 60 | PRG=`dirname "$PRG"`"/$link" 61 | fi 62 | done 63 | SAVED="`pwd`" 64 | cd "`dirname \"$PRG\"`/" >&- 65 | APP_HOME="`pwd -P`" 66 | cd "$SAVED" >&- 67 | 68 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 69 | 70 | # Determine the Java command to use to start the JVM. 71 | if [ -n "$JAVA_HOME" ] ; then 72 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 73 | # IBM's JDK on AIX uses strange locations for the executables 74 | JAVACMD="$JAVA_HOME/jre/sh/java" 75 | else 76 | JAVACMD="$JAVA_HOME/bin/java" 77 | fi 78 | if [ ! -x "$JAVACMD" ] ; then 79 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 80 | 81 | Please set the JAVA_HOME variable in your environment to match the 82 | location of your Java installation." 83 | fi 84 | else 85 | JAVACMD="java" 86 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 87 | 88 | Please set the JAVA_HOME variable in your environment to match the 89 | location of your Java installation." 90 | fi 91 | 92 | # Increase the maximum file descriptors if we can. 93 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then 94 | MAX_FD_LIMIT=`ulimit -H -n` 95 | if [ $? -eq 0 ] ; then 96 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 97 | MAX_FD="$MAX_FD_LIMIT" 98 | fi 99 | ulimit -n $MAX_FD 100 | if [ $? -ne 0 ] ; then 101 | warn "Could not set maximum file descriptor limit: $MAX_FD" 102 | fi 103 | else 104 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 105 | fi 106 | fi 107 | 108 | # For Darwin, add options to specify how the application appears in the dock 109 | if $darwin; then 110 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 111 | fi 112 | 113 | # For Cygwin, switch paths to Windows format before running java 114 | if $cygwin ; then 115 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 116 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 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 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 12 | set DEFAULT_JVM_OPTS= 13 | 14 | set DIRNAME=%~dp0 15 | if "%DIRNAME%" == "" set DIRNAME=. 16 | set APP_BASE_NAME=%~n0 17 | set APP_HOME=%DIRNAME% 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 Windowz 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 | -------------------------------------------------------------------------------- /src/main/java/org/reactivestreams/examples/Interop101.java: -------------------------------------------------------------------------------- 1 | package org.reactivestreams.examples; 2 | 3 | import akka.actor.ActorSystem; 4 | import akka.stream.ActorFlowMaterializer; 5 | import akka.stream.FlowMaterializer; 6 | import akka.stream.javadsl.Sink; 7 | import akka.stream.javadsl.Source; 8 | 9 | import org.reactivestreams.Publisher; 10 | 11 | import ratpack.http.ResponseChunks; 12 | import ratpack.server.RatpackServer; 13 | 14 | import reactor.Environment; 15 | import reactor.io.codec.StringCodec; 16 | import reactor.io.net.NetStreams; 17 | import reactor.io.net.http.HttpClient; 18 | import reactor.rx.Promise; 19 | import reactor.rx.Stream; 20 | import reactor.rx.Streams; 21 | 22 | import rx.Observable; 23 | import rx.RxReactiveStreams; 24 | import scala.runtime.BoxedUnit; 25 | 26 | import java.util.List; 27 | import java.util.concurrent.TimeUnit; 28 | 29 | /** 30 | * @author Stephane Maldini 31 | * Original credit and code Roland Kuhn: https://github.com/rkuhn/ReactiveStreamsInterop/blob/master/src/main/java/com/rolandkuhn/rsinterop/JavaMain.java 32 | */ 33 | public class Interop101 { 34 | 35 | static public void main(String... args) throws Exception { 36 | final ActorSystem system = ActorSystem.create("InteropTest"); 37 | final FlowMaterializer mat = ActorFlowMaterializer.create(system); 38 | Environment.initialize().assignErrorJournal(); 39 | 40 | final int chunks = 20; 41 | 42 | // RxJava Observable 43 | final Observable intObs = Observable.range(1, chunks); 44 | 45 | // Reactive Streams Publisher 46 | final Publisher intPub = RxReactiveStreams.toPublisher(intObs); 47 | 48 | // Akka Streams Source 49 | final Source stringSource = Source 50 | .from(intPub) 51 | .map(Object::toString) 52 | .scan("", (prev, next) -> prev+next); 53 | 54 | // Reactive Streams Publisher 55 | final Publisher stringPub = stringSource.runWith(Sink.fanoutPublisher(1, 1), mat); 56 | 57 | // Reactor Stream starting with START on the subscriber thread, then emits Akka Source with some log 58 | final Stream linesStream = Streams 59 | .wrap(stringPub) 60 | .log("reactor.map") 61 | .map(i -> i + "!"); 62 | 63 | 64 | //A Ratpack http server 65 | RatpackServer server = RatpackServer.of(spec -> spec 66 | .handlers(chain -> chain 67 | .get(":name", ctx -> 68 | // and now render the HTTP response 69 | ctx.render(ResponseChunks.stringChunks(ctx.stream(linesStream))) 70 | ) 71 | ) 72 | ); 73 | 74 | server.start(); 75 | 76 | 77 | //A Reactor http client 78 | HttpClient client = NetStreams.httpClient(conf -> 79 | conf.connect("localhost", 5050).codec(new StringCodec()) 80 | ); 81 | 82 | //Fire a get request that will only ping "anchorMan" 83 | Promise> result = client.get("/anchorMan") 84 | //flatten the chunked results amd aggregate into a single List "Promise" 85 | .flatMap(replies -> 86 | replies 87 | .log("reactor.replies") 88 | .toList() 89 | ); 90 | 91 | //Subscribe result with RxJava ReactiveStreams bridge 92 | RxReactiveStreams 93 | .toObservable(result) 94 | .flatMap(Observable::from) 95 | .toBlocking() 96 | .forEach(System.out::println); 97 | 98 | //shutdown server 99 | server.stop(); 100 | 101 | //shutdown actors 102 | system.shutdown(); 103 | } 104 | } 105 | -------------------------------------------------------------------------------- /src/main/resources/logback.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | %d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | --------------------------------------------------------------------------------