Issue ReactiveX#41: Added a method to the CircuitBreakerRegistry whic…

…h returns an immutable sequence of all managed CircuitBreaker instances

RELEASENOTES.adoc

@@ -79,4 +79,7 @@
 * Issue #38: A CircuitBreaker records not permitted calls when the state is OPEN and emits a event for each attempt. The metric "numberOfNotPermittedCalls" can be access via CircuitBreaker.Metrics
 * Issue #39: A CircuitBreaker should copy the previous RingBitSet values during state transition from HALF_OPEN to CLOSED
 * Updated javaslang from 2.0.4 to 2.0.5
-* Updated rxjava from 2.0.1 to 2.0.3
+* Updated rxjava from 2.0.1 to 2.0.3
+
+== Version 0.8.1
+* Issue #41: Added a method to the CircuitBreakerRegistry which returns a list of all managed CircuitBreaker instances

build.gradle

@@ -11,6 +11,7 @@ buildscript {
         classpath 'org.kt3k.gradle.plugin:coveralls-gradle-plugin:2.7.1'
         classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.2'
         classpath 'me.champeau.gradle:jmh-gradle-plugin:0.3.1'
+        classpath 'com.github.jengelman.gradle.plugins:shadow:1.2.0'
         classpath "org.asciidoctor:asciidoctor-gradle-plugin:1.5.3"
         classpath "org.ajoberstar:gradle-git:1.3.2"
         classpath "org.jfrog.buildinfo:build-info-extractor-gradle:4.0.0"
@@ -26,6 +27,7 @@ apply plugin: 'com.jfrog.bintray'
 apply plugin: "com.jfrog.artifactory"
 apply from: 'gradle/publishing.gradle'
 apply plugin: 'me.champeau.gradle.jmh'
+apply plugin: 'com.github.johnrengelman.shadow'
 apply plugin: 'org.asciidoctor.convert'
 apply plugin: 'org.ajoberstar.github-pages'
 
@@ -111,7 +113,7 @@ tasks.coveralls {
 }
 
 task wrapper(type: Wrapper) {
-    gradleVersion = '3.3'
+    gradleVersion = '3.2'
 }
 
 asciidoctor {

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Fri Jan 06 14:15:03 CET 2017
+#Mon Jan 09 12:41:44 CET 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-3.2-all.zip

gradlew

@@ -1,17 +1,35 @@
-#!/usr/bin/env bash
+#!/usr/bin/env sh
 
 ##############################################################################
 ##
 ##  Gradle start up script for UN*X
 ##
 ##############################################################################
 
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS=""
+# 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"
 
@@ -30,6 +48,7 @@ die ( ) {
 cygwin=false
 msys=false
 darwin=false
+nonstop=false
 case "`uname`" in
   CYGWIN* )
     cygwin=true
@@ -40,26 +59,11 @@ case "`uname`" in
   MINGW* )
     msys=true
     ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
 esac
 
-# 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 "$SAVED" >/dev/null
-
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 
 # Determine the Java command to use to start the JVM.
@@ -85,7 +89,7 @@ location of your Java installation."
 fi
 
 # Increase the maximum file descriptors if we can.
-if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+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
@@ -150,11 +154,19 @@ if $cygwin ; then
     esac
 fi
 
-# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
-function splitJvmOpts() {
-    JVM_OPTS=("$@")
+# Escape application args
+save ( ) {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
 }
-eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
-JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+APP_ARGS=$(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 "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -8,14 +8,14 @@
 @rem Set local scope for the variables with windows NT shell
 if "%OS%"=="Windows_NT" setlocal
 
-@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS=
-
 set DIRNAME=%~dp0
 if "%DIRNAME%" == "" set DIRNAME=.
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
 @rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome
 
@@ -46,10 +46,9 @@ echo location of your Java installation.
 goto fail
 
 :init
-@rem Get command-line arguments, handling Windowz variants
+@rem Get command-line arguments, handling Windows variants
 
 if not "%OS%" == "Windows_NT" goto win9xME_args
-if "%@eval[2+2]" == "4" goto 4NT_args
 
 :win9xME_args
 @rem Slurp the command line arguments.
@@ -60,11 +59,6 @@ set _SKIP=2
 if "x%~1" == "x" goto execute
 
 set CMD_LINE_ARGS=%*
-goto execute
-
-:4NT_args
-@rem Get arguments from the 4NT Shell from JP Software
-set CMD_LINE_ARGS=%$
 
 :execute
 @rem Setup the command line

src/main/java/io/github/robwin/circuitbreaker/CircuitBreakerRegistry.java

@@ -20,6 +20,7 @@
 
 
 import io.github.robwin.circuitbreaker.internal.InMemoryCircuitBreakerRegistry;
+import javaslang.collection.Seq;
 
 import java.util.function.Supplier;
 
@@ -28,6 +29,13 @@
  */
 public interface CircuitBreakerRegistry {
 
+    /**
+     * Returns all managed {@link CircuitBreaker} instances.
+     *
+     * @return all managed {@link CircuitBreaker} instances.
+     */
+    Seq<CircuitBreaker> getAllCircuitBreakers();
+
     /**
      * Returns a managed {@link CircuitBreaker} or creates a new one with the default CircuitBreaker configuration.
      *

src/main/java/io/github/robwin/circuitbreaker/internal/InMemoryCircuitBreakerRegistry.java

@@ -18,9 +18,11 @@
  */
 package io.github.robwin.circuitbreaker.internal;
 
-import io.github.robwin.circuitbreaker.CircuitBreakerConfig;
 import io.github.robwin.circuitbreaker.CircuitBreaker;
+import io.github.robwin.circuitbreaker.CircuitBreakerConfig;
 import io.github.robwin.circuitbreaker.CircuitBreakerRegistry;
+import javaslang.collection.Array;
+import javaslang.collection.Seq;
 
 import java.util.Objects;
 import java.util.concurrent.ConcurrentHashMap;
@@ -58,6 +60,11 @@ public InMemoryCircuitBreakerRegistry(CircuitBreakerConfig defaultCircuitBreaker
         this.circuitBreakers = new ConcurrentHashMap<>();
     }
 
+    @Override
+    public Seq<CircuitBreaker> getAllCircuitBreakers() {
+        return Array.ofAll(circuitBreakers.values());
+    }
+
     /**
      * {@inheritDoc}
      */

src/test/java/io/github/robwin/circuitbreaker/CircuitBreakerRegistryTest.java

@@ -18,8 +18,6 @@
  */
 package io.github.robwin.circuitbreaker;
 
-import io.github.robwin.circuitbreaker.CircuitBreaker;
-import io.github.robwin.circuitbreaker.CircuitBreakerRegistry;
 import org.junit.Before;
 import org.junit.Test;
 
@@ -47,12 +45,15 @@ public void shouldBeTheSameCircuitBreaker() {
         CircuitBreaker circuitBreaker = circuitBreakerRegistry.circuitBreaker("testName");
         CircuitBreaker circuitBreaker2 = circuitBreakerRegistry.circuitBreaker("testName");
         assertThat(circuitBreaker).isSameAs(circuitBreaker2);
+        assertThat(circuitBreakerRegistry.getAllCircuitBreakers()).hasSize(1);
     }
 
     @Test
     public void shouldBeNotTheSameCircuitBreaker() {
         CircuitBreaker circuitBreaker = circuitBreakerRegistry.circuitBreaker("testName");
         CircuitBreaker circuitBreaker2 = circuitBreakerRegistry.circuitBreaker("otherTestName");
         assertThat(circuitBreaker).isNotSameAs(circuitBreaker2);
+
+        assertThat(circuitBreakerRegistry.getAllCircuitBreakers()).hasSize(2);
     }
 }