Add Gradle configuration and Java 9 support (#48)

.gitignore

@@ -1,4 +1,6 @@
+build
 target/
 .idea
+.gradle
 project/project/
 *.class

.travis.yml

@@ -1,16 +1,36 @@
 language: scala
 scala:
-- 2.11.8
-- 2.12.2
+# When updating Scala versions, also check the excludes
+# in build matrix below.
+- 2.11.12
+- 2.12.4
 jdk:
 - oraclejdk8
+- oraclejdk9
+env:
+  matrix:
+    - SCRIPT=scripts/test-sbt
+    - SCRIPT=scripts/test-gradle
+script:
+- $SCRIPT
 cache:
   directories:
   - "$HOME/.ivy2/cache"
+  - "$HOME/.gradle/caches"
 before_cache:
 - rm -rf $HOME/.ivy2/cache/com.typesafe.play/*
 - rm -rf $HOME/.ivy2/cache/scala_*/sbt_*/com.typesafe.play/*
 - find $HOME/.ivy2/cache -name "ivydata-*.properties" -print0 | xargs -n10 -0 rm
+
+# Exclude some combinations from build matrix. See:
+# https://docs.travis-ci.com/user/customizing-the-build/#Build-Matrix
+matrix:
+  exclude:
+    - scala: 2.11.12
+      jdk: oraclejdk9
+
+# See https://blog.travis-ci.com/2014-03-13-slack-notifications/
+# created with travis encrypt command line tool
 notifications:
   slack:
-    secure: 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
+    secure: 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

README.md

@@ -1,19 +1,19 @@
 # play-streaming-scala
 
+[![Build Status](https://travis-ci.org/playframework/play-scala-streaming-example.svg?branch=2.6.x)](https://travis-ci.org/playframework/play-scala-streaming-example)
+
 This is an example Play template that demonstrates Streaming with Server Sent Events or Comet, using Akka Streams.
 
 Please see the documentation at:
 
-* https://www.playframework.com/documentation/current/ScalaComet
+* <https://www.playframework.com/documentation/current/ScalaComet>
 
 ## Running
 
 Run the application:
- 
-```
+
+```bash
 sbt run
 ```
 
-Once the application has been compiled and the server started, your
-    application can be accessed at:
-    <a href="http://localhost:9000" target="_blank">http://localhost:9000</a>
+Once the application has been compiled and the server started, your application can be accessed at <http://localhost:9000>.

app/views/scalaeventsource.scala.html

@@ -1,13 +1,13 @@
 @main {
-    
+
     <h1>Server Sent Event clock</h1>
-    
+
     <h1 id="clock"></h1>
-    
+
     <p>
         Clock events are pushed from the Server using a Server Sent Event connection.
     </p>
-    
+
     <script type="text/javascript" charset="utf-8">
 
        if (!!window.EventSource) {
@@ -16,7 +16,7 @@ <h1 id="clock"></h1>
             $('#clock').html(e.data.replace(/(\d)/g, '<span>$1</span>'))
          });
        } else {
-         $("#clock").html("Sorry. This browser doesn't seem to support Server sent event. Check <a href='http://html5test.com/compare/feature/communication-eventSource.html'>html5test</a> for browser compatibility."); 
+         $("#clock").html("Sorry. This browser doesn't seem to support Server sent event. Check <a href='http://html5test.com/compare/feature/communication-eventSource.html'>html5test</a> for browser compatibility.");
        }
-    </script>    
+    </script>
 }

build.gradle

@@ -0,0 +1,43 @@
+plugins {
+    id 'play'
+    id 'idea'
+}
+
+def playVersion = '2.6.9'
+def scalaVersion = System.getProperty("scala.binary.version", /* default = */ "2.12")
+
+model {
+    components {
+        play {
+            platform play: playVersion, scala: scalaVersion, java: '1.8'
+            injectedRoutesGenerator = true
+
+            sources {
+                twirlTemplates {
+                    defaultImports = TwirlImports.SCALA
+                }
+            }
+        }
+    }
+}
+
+dependencies {
+    play "com.typesafe.play:play-guice_$scalaVersion:$playVersion"
+    play "com.typesafe.play:play-logback_$scalaVersion:$playVersion"
+
+    playTest "com.typesafe.play:play-ahc-ws_$scalaVersion:$playVersion"
+    playTest "org.scalatestplus.play:scalatestplus-play_$scalaVersion:3.1.2"
+}
+
+repositories {
+    jcenter()
+    maven {
+        name "lightbend-maven-releases"
+        url "https://repo.lightbend.com/lightbend/maven-release"
+    }
+    ivy {
+        name "lightbend-ivy-release"
+        url "https://repo.lightbend.com/lightbend/ivy-releases"
+        layout "ivy"
+    }
+}

build.sbt

@@ -2,11 +2,11 @@ name := "play-scala-streaming-example"
 
 version := "2.6.x"
 
-scalaVersion := "2.12.2"
+scalaVersion := "2.12.4"
 
 lazy val root = (project in file(".")).enablePlugins(PlayScala)
 
 libraryDependencies += guice
 
 libraryDependencies += ws % Test
-libraryDependencies += "org.scalatestplus.play" %% "scalatestplus-play" % "3.1.0" % Test
+libraryDependencies += "org.scalatestplus.play" %% "scalatestplus-play" % "3.1.2" % Test

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-bin.zip
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStorePath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME

gradlew

@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"