Update build to gradle

Update to use gradle to avoid jar-dependencies based weirdness
with old version of jruby, and for consistency with other
plugins using java dependencies.

Rakefile

@@ -1,23 +1,18 @@
-require "bundler/gem_tasks"
-require 'jars/version'
 
-begin
-  require 'rspec/core/rake_task'
-  RSpec::Core::RakeTask.new(:spec)
-rescue LoadError
-end
-
-task default: "spec"
+# encoding: utf-8
+require "jars/installer"
+require "fileutils"
 
-require 'jars/installer'
-desc 'Install the JAR dependencies to vendor/'
-task :install_jars do
-  # We actually want jar-dependencies will download the jars and place it in
-  # vendor/jar-dependencies/runtime-jars
-  Jars::Installer.new.vendor_jars!(false, 'vendor/jar-dependencies/runtime-jars')
+task :default do
+  system('rake -vT')
 end
 
-task build: :install_jars
-require "logstash/devutils/rake"
-task vendor: :install_jars
+task :vendor do
+  exit(1) unless system './gradlew vendor'
+end
 
+task :clean do
+  ["vendor/jar-dependencies", "Gemfile.lock"].each do |p|
+    FileUtils.rm_rf(p)
+  end
+end

build.gradle

@@ -0,0 +1,97 @@
+import java.nio.file.Files
+import static java.nio.file.StandardCopyOption.REPLACE_EXISTING
+/*
+ * Licensed to Elasticsearch under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+apply plugin: "java"
+apply plugin: 'maven'
+apply plugin: "distribution"
+apply plugin: "idea"
+
+group "org.logstash.inputs"
+
+sourceCompatibility = JavaVersion.VERSION_1_8
+
+buildscript {
+    repositories {
+        mavenCentral()
+        jcenter()
+    }
+
+}
+
+repositories {
+    mavenCentral()
+}
+
+task wrapper(type: Wrapper) {
+    gradleVersion = '4.0'
+}
+
+dependencies {
+  compile 'com.amazonaws:amazon-kinesis-client:1.7.0'
+  compile 'com.amazonaws:aws-java-sdk-core:1.11.16'
+  compile 'com.amazonaws:aws-java-sdk-dynamodb:1.11.14'
+  compile 'com.amazonaws:aws-java-sdk-s3:1.11.14'
+  compile 'com.amazonaws:aws-java-sdk-kms:1.11.14'
+  compile 'com.amazonaws:aws-java-sdk-core:1.11.16'
+  compile 'commons-logging:commons-logging:1.2'
+  compile 'org.apache.httpcomponents:httpclient:4.5.2'
+  compile 'org.apache.httpcomponents:httpcore:4.4.4'
+  compile 'commons-logging:commons-logging:1.2'
+  compile 'commons-codec:commons-codec:1.9'
+  compile 'com.fasterxml.jackson.core:jackson-databind:2.6.6'
+  compile 'com.fasterxml.jackson.core:jackson-annotations:2.6.0'
+  compile 'com.fasterxml.jackson.core:jackson-core:2.6.6'
+  compile 'com.fasterxml.jackson.dataformat:jackson-dataformat-cbor:2.6.6'
+  compile 'com.fasterxml.jackson.core:jackson-core:2.6.6'
+  compile 'joda-time:joda-time:2.8.1'
+  compile 'com.amazonaws:aws-java-sdk-kinesis:1.11.14'
+  compile 'com.amazonaws:aws-java-sdk-cloudwatch:1.11.14'
+  compile 'com.google.guava:guava:18.0'
+  compile 'com.google.protobuf:protobuf-java:2.6.1'
+  compile 'commons-lang:commons-lang:2.6'
+}
+
+task generateGemJarRequiresFile {
+    doLast {
+        File jars_file = file('lib/logstash-input-kinesis_jars.rb')
+        jars_file.newWriter().withWriter { w ->
+            w << "# AUTOGENERATED BY THE GRADLE SCRIPT. DO NOT EDIT.\n\n"
+            w << "require \'jar_dependencies\'\n"
+            configurations.runtime.allDependencies.each {
+                w << "require_jar(\'${it.group}\', \'${it.name}\', \'${it.version}\')\n"
+            }
+        }
+    }
+}
+
+task vendor {
+    doLast {
+        String vendorPathPrefix = "vendor/jar-dependencies"
+        configurations.runtime.allDependencies.each { dep ->
+            File f = configurations.runtime.filter { it.absolutePath.contains("${dep.group}/${dep.name}/${dep.version}") }.singleFile
+            String groupPath = dep.group.replaceAll('\\.', '/')
+            File newJarFile = file("${vendorPathPrefix}/${groupPath}/${dep.name}/${dep.version}/${dep.name}-${dep.version}.jar")
+            newJarFile.mkdirs()
+            Files.copy(f.toPath(), newJarFile.toPath(), REPLACE_EXISTING)
+        }
+    }
+}
+
+vendor.dependsOn(generateGemJarRequiresFile)

gradle.properties

@@ -0,0 +1 @@
+org.gradle.daemon=false

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Wed Jun 21 11:39:16 CEST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.0-all.zip

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" "$@"