IGNITE-12361 Migrate Flume module to ignite-extensions - Fixes #4.
Signed-off-by: samaitra <saikat.maitra@gmail.com>
diff --git a/modules/flume-ext/README.txt b/modules/flume-ext/README.txt
new file mode 100644
index 0000000..adcd021
--- /dev/null
+++ b/modules/flume-ext/README.txt
@@ -0,0 +1,48 @@
+Apache Ignite Flume Sink Module
+-------------------------------
+
+IgniteSink is a Flume sink that extracts Events from an associated Flume channel and injects into an Ignite cache.
+Flume 1.7.0 is supported.
+
+IgniteSink, which can be found in 'optional/ignite-flume', and its dependencies have to be included in the agent's classpath,
+as described in the following subsection, before starting the Flume agent.
+
+## Setting up and running
+
+1. Create a transformer by implementing EventTransformer interface.
+2. Create 'ignite' directory inside plugins.d directory which is located in ${FLUME_HOME}. If the plugins.d directory is not there, create it.
+3. Build it and copy to ${FLUME_HOME}/plugins.d/ignite-sink/lib.
+4. Copy other Ignite-related jar files from Apache Ignite distribution to ${FLUME_HOME}/plugins.d/ignite-sink/libext to have them as shown below.
+
+```
+plugins.d/
+`-- ignite
+ |-- lib
+ | `-- ignite-flume-transformer-x.x.x.jar <-- your jar
+ `-- libext
+ |-- cache-api-1.0.0.jar
+ |-- ignite-core-x.x.x.jar
+ |-- ignite-flume-x.x.x.jar <-- IgniteSink
+ |-- ignite-spring-x.x.x.jar
+ |-- spring-aop-4.1.0.RELEASE.jar
+ |-- spring-beans-4.1.0.RELEASE.jar
+ |-- spring-context-4.1.0.RELEASE.jar
+ |-- spring-core-4.1.0.RELEASE.jar
+ `-- spring-expression-4.1.0.RELEASE.jar
+```
+
+4. In Flume configuration file, specify Ignite configuration XML file's location with cache properties
+(see [Apache Ignite](https://apacheignite.readme.io/) with cache name specified for cache creation,
+cache name (same as in Ignite configuration file), your EventTransformer's implementation class,
+and, optionally, batch size (default -- 100).
+
+```
+# Describe the sink
+a1.sinks.k1.type = org.apache.ignite.stream.flume.IgniteSink
+a1.sinks.k1.igniteCfg = /some-path/ignite.xml
+a1.sinks.k1.cacheName = testCache
+a1.sinks.k1.eventTransformer = my.company.MyEventTransformer
+a1.sinks.k1.batchSize = 100
+```
+
+After specifying your source and channel (see Flume's docs), you are ready to run a Flume agent.
diff --git a/modules/flume-ext/licenses/apache-2.0.txt b/modules/flume-ext/licenses/apache-2.0.txt
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/modules/flume-ext/licenses/apache-2.0.txt
@@ -0,0 +1,202 @@
+
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diff --git a/modules/flume-ext/modules/core/src/test/config/log4j-test.xml b/modules/flume-ext/modules/core/src/test/config/log4j-test.xml
new file mode 100755
index 0000000..370a50a
--- /dev/null
+++ b/modules/flume-ext/modules/core/src/test/config/log4j-test.xml
@@ -0,0 +1,145 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements. See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The ASF 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.
+-->
+
+<!DOCTYPE log4j:configuration PUBLIC "-//APACHE//DTD LOG4J 1.2//EN"
+ "http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/xml/doc-files/log4j.dtd">
+<!--
+ Log4j configuration.
+-->
+<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/" debug="false">
+ <!--
+ Logs System.out messages to console.
+ -->
+ <appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">
+ <!-- Log to STDOUT. -->
+ <param name="Target" value="System.out"/>
+
+ <!-- Log from DEBUG and higher. -->
+ <param name="Threshold" value="DEBUG"/>
+
+ <!-- The default pattern: Date Priority [Category] Message\n -->
+ <layout class="org.apache.log4j.PatternLayout">
+ <param name="ConversionPattern" value="[%d{ISO8601}][%-5p][%t][%c{1}] %m%n"/>
+ </layout>
+
+ <!-- Do not log beyond INFO level. -->
+ <filter class="org.apache.log4j.varia.LevelRangeFilter">
+ <param name="levelMin" value="DEBUG"/>
+ <param name="levelMax" value="INFO"/>
+ </filter>
+ </appender>
+
+ <!--
+ Logs all System.err messages to console.
+ -->
+ <appender name="CONSOLE_ERR" class="org.apache.log4j.ConsoleAppender">
+ <!-- Log to STDERR. -->
+ <param name="Target" value="System.err"/>
+
+ <!-- Log from WARN and higher. -->
+ <param name="Threshold" value="WARN"/>
+
+ <!-- The default pattern: Date Priority [Category] Message\n -->
+ <layout class="org.apache.log4j.PatternLayout">
+ <param name="ConversionPattern" value="[%d{ISO8601}][%-5p][%t][%c{1}] %m%n"/>
+ </layout>
+ </appender>
+
+ <!--
+ Logs all output to specified file.
+ -->
+ <appender name="FILE" class="org.apache.log4j.RollingFileAppender">
+ <param name="Threshold" value="DEBUG"/>
+ <param name="File" value="${IGNITE_HOME}/work/log/ignite.log"/>
+ <param name="Append" value="true"/>
+ <param name="MaxFileSize" value="10MB"/>
+ <param name="MaxBackupIndex" value="10"/>
+ <layout class="org.apache.log4j.PatternLayout">
+ <param name="ConversionPattern" value="[%d{ISO8601}][%-5p][%t][%c{1}] %m%n"/>
+ </layout>
+ </appender>
+
+ <!--
+ Uncomment to enable Ignite query execution debugging.
+ -->
+ <!--
+ <category name="org.apache.ignite.internal.processors.query">
+ <level value="DEBUG"/>
+ </category>
+ -->
+
+ <!--
+ Uncomment to enable Exchange, Rebalance and Partitions workflow debugging.
+ -->
+ <!--
+ <category name="org.apache.ignite.internal.processors.cache.distributed.dht.preloader">
+ <level value="DEBUG"/>
+ </category>
+
+ <category name="org.apache.ignite.internal.processors.cache.distributed.dht.topology">
+ <level value="DEBUG"/>
+ </category>
+ -->
+
+ <!--
+ Uncomment to enable debugging of partition counters.
+ -->
+ <!--
+ <category name="org.apache.ignite.internal.processors.cache.PartitionTxUpdateCounterDebugWrapper">
+ <level value="DEBUG"/>
+ </category>
+ -->
+
+ <!--
+ Uncomment to enable transactions debugging.
+ -->
+ <!--
+ <category name="org.apache.ignite.cache.msg.tx.prepare">
+ <level value="DEBUG"/>
+ </category>
+
+ <category name="org.apache.ignite.cache.msg.tx.finish">
+ <level value="DEBUG"/>
+ </category>
+
+ <category name="org.apache.ignite.cache.msg.tx.recovery">
+ <level value="DEBUG"/>
+ </category>
+ -->
+
+ <!-- Disable all open source debugging. -->
+ <category name="org">
+ <level value="INFO"/>
+ </category>
+
+ <category name="org.eclipse.jetty">
+ <level value="INFO"/>
+ </category>
+
+ <!-- Default settings. -->
+ <root>
+ <!-- Print at info by default. -->
+ <level value="INFO"/>
+
+ <!-- Append to file and console. -->
+ <appender-ref ref="FILE"/>
+ <appender-ref ref="CONSOLE"/>
+ <appender-ref ref="CONSOLE_ERR"/>
+ </root>
+</log4j:configuration>
diff --git a/modules/flume-ext/modules/core/src/test/config/tests.properties b/modules/flume-ext/modules/core/src/test/config/tests.properties
new file mode 100644
index 0000000..18b3606
--- /dev/null
+++ b/modules/flume-ext/modules/core/src/test/config/tests.properties
@@ -0,0 +1,153 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF 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.
+#
+
+# Local address to bind to.
+local.ip=127.0.0.1
+
+# TCP communication port
+comm.tcp.port=30010
+
+# JBoss JNDI
+# JBoss context factory for JNDI connection establishing.
+jboss.jndi.context.factory=org.jnp.interfaces.NamingContextFactory
+# JBoss specific parameter for JNDI connection establishing.
+jboss.jndi.pkg.prefixes=org.jboss.naming:org.jnp.interfaces
+# URL of JBoss server for the 1st node.
+jboss.jndi.node1.provider.url=jnp://localhost:1199
+# URL of JBoss server for the 2nd node.
+jboss.jndi.node2.provider.url=jnp://localhost:1299
+# JBoss Discovery test max wait time.
+jboss.disco.test.wait=180000
+
+# Deployment configuration paths.
+# You will either need to override deploy.uri.dir or supply CLASSES_URI as system property.
+#
+# Path to keystore with private and public keys.
+deploy.uri.secure.keystore=@{IGNITE_HOME}/modules/tests/config/securedeploy/keystore
+# Temporary dir where deployment unit stored before deploy.
+deploy.uri.tmpdir=${java.io.tmpdir}/gg
+# Deployment dir for file scanner test with different types of GAR's.
+deploy.uri.file2.path=${java.io.tmpdir}/gg/verification/
+# URI string.
+deploy.uri.file2=file://freq=200@localhost/${java.io.tmpdir}/gg/verification/
+# File scanner URI for local file deployment.
+deploy.uri.file=file://localhost/@{IGNITE_HOME}/modules/extdata/uri/target/file/
+# FTP scanner URI for FTP deployment.
+deploy.uri.ftp=ftp://ftptest:iddqd@94.72.60.102:21/test/deployment
+# Classes scanner URI for classes deployment. Must be overridden for every user.
+deploy.uri.cls=${CLASSES_URI}
+# Http scanner URI for HTTP deployment.
+deploy.uri.http=http://fake.uri
+# Http scanner URI for secure SSL HTTPs deployment.
+deploy.uri.https=https://fake.uri
+# Directory with descriptors to construct GAR files.
+deploy.gar.descriptor.dir=modules/urideploy/src/test/java/org/apache/ignite/spi/deployment/uri/META-INF
+
+# Directory with a number of descriptors for the Ant gar task.
+ant.gar.descriptor.dir=modules/extdata/p2p/META-INF
+# Temporary directory for the Ant task resulting GAR file.
+ant.gar.tmpdir=${java.io.tmpdir}/gg
+# The same as p2p.uri.cls but without protocol
+ant.gar.srcdir=@{IGNITE_HOME}/modules/extdata/uri/target/classes/
+
+# Paths to use in URI deployment SPI tests
+urideployment.jar.uri=modules/extdata/uri/target/deploy/uri.jar
+urideployment.path.tmp=modules/extdata/uri/target/deploy_tmp/
+
+# GAR paths to use in URI deployment SPI tests
+ant.urideployment.gar.uri=file://freq=5000@localhost/EXTDATA/uri/target/deploy
+ant.urideployment.gar.file=modules/extdata/uri/target/deploy/uri.gar
+ant.urideployment.gar.libs-file=modules/extdata/uri/target/deploy2/uri-libs.gar
+ant.urideployment.gar.classes-file=modules/extdata/uri/target/deploy2/uri-classes.gar
+ant.urideployment.gar.path=modules/extdata/uri/target/deploy/
+
+# Classpath directory for GridP2PUserVersionChangeSelfTest
+ant.userversion.class.dir=@{IGNITE_HOME}/modules/tests/java/
+
+# Multicast discovery self test.
+discovery.mbeanserver.selftest.baseport=50000
+
+# TCP communication self test.
+comm.mbeanserver.selftest.baseport=50100
+
+# Kernel tests.
+grid.comm.selftest.sender.timeout=1000
+grid.comm.selftest.timeout=10000
+
+#P2P tests
+#Overwrite this property. It should point to P2P module compilation directory.
+p2p.uri.cls=file://localhost/@{IGNITE_HOME}/modules/extdata/p2p/target/classes/
+p2p.uri.cls.second=file://localhost/@{IGNITE_HOME}/modules/extdata/uri/target/classes/
+
+# AOP tests.
+# Connector port for RMI.
+connector.rmi.port=7657
+# Connector port for XFire Web Service.
+connector.ws.port=9090
+
+# Load test duration in minutes.
+load.test.duration=500
+load.test.threadnum=50
+load.test.nodenum=5
+
+# Loaders tests
+loader.self.test.config=modules/core/src/test/config/loaders/grid-cfg.xml
+loader.self.multipletest.config=modules/core/src/test/config/loaders/grid-cfg-2-grids.xml
+loader.self.test.jboss.config=modules/core/src/test/config/loaders/grid-cfg.xml
+
+# WebSphere jmx properties
+websphere.jmx.connector.host=localhost
+websphere.jmx.connector.port=8880
+websphere.jmx.connector.security=false
+websphere.jmx.username=
+websphere.jmx.pwd=
+
+# GlassFish jmx properties for GlassFish Loader
+glassfish.jmx.rmi.connector.port=8686
+glassfish.jmx.username=admin
+glassfish.jmx.password=adminadmin
+
+# Tomcat jmx properties for Servlet Loader
+tomcat.jmx.rmi.connector.port=1097
+
+# Marshaller for tests
+#marshaller.class=org.apache.ignite.marshaller.jdk.GridJdkMarshaller
+
+# EC2 configuration for tests
+#amazon.access.key=
+#amazon.secret.key=
+
+# SSH config.
+ssh.username=uname
+ssh.password=passwd
+
+# SSL tests keystore.
+ssl.keystore.path=@{IGNITE_HOME}/modules/clients/src/test/keystore/server.jks
+ssl.keystore.password=123456
+
+# node01 signed with trust-one, node02 and node03 by trust-two, node02old is expired
+# trust-both contains both CAs
+ssl.keystore.node01.path=@{IGNITE_HOME}/modules/clients/src/test/keystore/ca/node01.jks
+ssl.keystore.node02.path=@{IGNITE_HOME}/modules/clients/src/test/keystore/ca/node02.jks
+ssl.keystore.node03.path=@{IGNITE_HOME}/modules/clients/src/test/keystore/ca/node03.jks
+ssl.keystore.trustone.path=@{IGNITE_HOME}/modules/clients/src/test/keystore/ca/trust-one.jks
+ssl.keystore.trusttwo.path=@{IGNITE_HOME}/modules/clients/src/test/keystore/ca/trust-two.jks
+ssl.keystore.trustboth.path=@{IGNITE_HOME}/modules/clients/src/test/keystore/ca/trust-both.jks
+ssl.keystore.node02old.path=@{IGNITE_HOME}/modules/clients/src/test/keystore/ca/node02old.jks
+
+# Hadoop home directory.
+hadoop.home=@{HADOOP_HOME}
diff --git a/modules/flume-ext/pom.xml b/modules/flume-ext/pom.xml
new file mode 100644
index 0000000..ffcc8b1
--- /dev/null
+++ b/modules/flume-ext/pom.xml
@@ -0,0 +1,94 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements. See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The ASF 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.
+-->
+
+<!--
+ POM file.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+ <modelVersion>4.0.0</modelVersion>
+
+ <parent>
+ <groupId>org.apache.ignite</groupId>
+ <artifactId>ignite-parent</artifactId>
+ <version>1</version>
+ <relativePath>../../parent</relativePath>
+ </parent>
+
+ <artifactId>ignite-flume-ext</artifactId>
+ <version>1.0.0-SNAPSHOT</version>
+ <url>http://ignite.apache.org</url>
+
+ <properties>
+ <ignite-core.version>2.9.0-SNAPSHOT</ignite-core.version>
+ <ignite-log4j.version>2.9.0-SNAPSHOT</ignite-log4j.version>
+ <ignite-spring.version>2.9.0-SNAPSHOT</ignite-spring.version>
+ </properties>
+
+ <dependencies>
+ <dependency>
+ <groupId>org.apache.ignite</groupId>
+ <artifactId>ignite-core</artifactId>
+ <version>${ignite-core.version}</version>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.flume</groupId>
+ <artifactId>flume-ng-core</artifactId>
+ <version>${flume.ng.version}</version>
+ <exclusions>
+ <exclusion>
+ <groupId>commons-codec</groupId>
+ <artifactId>commons-codec</artifactId>
+ </exclusion>
+ </exclusions>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.ignite</groupId>
+ <artifactId>ignite-spring</artifactId>
+ <version>${ignite-spring.version}</version>
+ <scope>test</scope>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.ignite</groupId>
+ <artifactId>ignite-log4j</artifactId>
+ <version>${ignite-log4j.version}</version>
+ <scope>test</scope>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.ignite</groupId>
+ <artifactId>ignite-core</artifactId>
+ <version>${ignite-core.version}</version>
+ <type>test-jar</type>
+ <scope>test</scope>
+ </dependency>
+ </dependencies>
+
+ <build>
+ <plugins>
+ <!-- Generate the OSGi MANIFEST.MF for this bundle. -->
+ <plugin>
+ <groupId>org.apache.felix</groupId>
+ <artifactId>maven-bundle-plugin</artifactId>
+ </plugin>
+ </plugins>
+ </build>
+</project>
diff --git a/modules/flume-ext/src/main/java/org/apache/ignite/stream/flume/EventTransformer.java b/modules/flume-ext/src/main/java/org/apache/ignite/stream/flume/EventTransformer.java
new file mode 100644
index 0000000..913ebb4
--- /dev/null
+++ b/modules/flume-ext/src/main/java/org/apache/ignite/stream/flume/EventTransformer.java
@@ -0,0 +1,36 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF 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.
+ */
+
+package org.apache.ignite.stream.flume;
+
+import java.util.List;
+import java.util.Map;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * Flume event transformer to convert a list of Flume Events to cache entries.
+ */
+public interface EventTransformer<Event, K, V> {
+
+ /**
+ * Transforms a list of Flume Events to cache entries.
+ *
+ * @param events List of Flume events to transform.
+ * @return Cache entries to be written into the grid.
+ */
+ @Nullable Map<K, V> transform(List<Event> events);
+}
diff --git a/modules/flume-ext/src/main/java/org/apache/ignite/stream/flume/IgniteSink.java b/modules/flume-ext/src/main/java/org/apache/ignite/stream/flume/IgniteSink.java
new file mode 100644
index 0000000..9a55f71
--- /dev/null
+++ b/modules/flume-ext/src/main/java/org/apache/ignite/stream/flume/IgniteSink.java
@@ -0,0 +1,197 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF 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.
+ */
+
+package org.apache.ignite.stream.flume;
+
+import java.util.ArrayList;
+import java.util.List;
+import org.apache.flume.Channel;
+import org.apache.flume.Context;
+import org.apache.flume.Event;
+import org.apache.flume.EventDeliveryException;
+import org.apache.flume.FlumeException;
+import org.apache.flume.Transaction;
+import org.apache.flume.conf.Configurable;
+import org.apache.flume.instrumentation.SinkCounter;
+import org.apache.flume.sink.AbstractSink;
+import org.apache.ignite.Ignite;
+import org.apache.ignite.IgniteIllegalStateException;
+import org.apache.ignite.Ignition;
+import org.apache.ignite.internal.util.typedef.internal.A;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Flume sink for Apache Ignite.
+ */
+public class IgniteSink extends AbstractSink implements Configurable {
+ /** Logger. */
+ private static final Logger log = LoggerFactory.getLogger(IgniteSink.class);
+
+ /** Default batch size. */
+ private static final int DFLT_BATCH_SIZE = 100;
+
+ /** Ignite configuration file. */
+ private String springCfgPath;
+
+ /** Cache name. */
+ private String cacheName;
+
+ /** Event transformer implementation class. */
+ private String eventTransformerCls;
+
+ /** Number of events to be written per Flume transaction. */
+ private int batchSize;
+
+ /** Monitoring counter. */
+ private SinkCounter sinkCounter;
+
+ /** Event transformer. */
+ private EventTransformer<Event, Object, Object> eventTransformer;
+
+ /** Ignite instance. */
+ private Ignite ignite;
+
+ /** Empty constructor. */
+ public IgniteSink() {
+ }
+
+ /**
+ * Sink configurations with Ignite-specific settings.
+ *
+ * @param context Context for sink.
+ */
+ @Override public void configure(Context context) {
+ springCfgPath = context.getString(IgniteSinkConstants.CFG_PATH);
+ cacheName = context.getString(IgniteSinkConstants.CFG_CACHE_NAME);
+ eventTransformerCls = context.getString(IgniteSinkConstants.CFG_EVENT_TRANSFORMER);
+ batchSize = context.getInteger(IgniteSinkConstants.CFG_BATCH_SIZE, DFLT_BATCH_SIZE);
+
+ if (sinkCounter == null)
+ sinkCounter = new SinkCounter(getName());
+ }
+
+ /**
+ * Starts a grid and initializes an event transformer.
+ */
+ @SuppressWarnings("unchecked")
+ @Override public synchronized void start() {
+ A.notNull(springCfgPath, "Ignite config file");
+ A.notNull(cacheName, "Cache name");
+ A.notNull(eventTransformerCls, "Event transformer class");
+
+ sinkCounter.start();
+
+ try {
+ if (ignite == null)
+ ignite = Ignition.start(springCfgPath);
+
+ if (eventTransformerCls != null && !eventTransformerCls.isEmpty()) {
+ Class<? extends EventTransformer> clazz =
+ (Class<? extends EventTransformer<Event, Object, Object>>)Class.forName(eventTransformerCls);
+
+ eventTransformer = clazz.newInstance();
+ }
+ }
+ catch (Exception e) {
+ log.error("Failed to start grid", e);
+
+ sinkCounter.incrementConnectionFailedCount();
+
+ throw new FlumeException("Failed to start grid", e);
+ }
+
+ sinkCounter.incrementConnectionCreatedCount();
+
+ super.start();
+ }
+
+ /**
+ * Stops the grid.
+ */
+ @Override public synchronized void stop() {
+ if (ignite != null)
+ ignite.close();
+
+ sinkCounter.incrementConnectionClosedCount();
+ sinkCounter.stop();
+
+ super.stop();
+ }
+
+ /**
+ * Processes Flume events.
+ */
+ @Override public Status process() throws EventDeliveryException {
+ Channel channel = getChannel();
+
+ Transaction transaction = channel.getTransaction();
+
+ int eventCount = 0;
+
+ try {
+ transaction.begin();
+
+ List<Event> batch = new ArrayList<>(batchSize);
+
+ for (; eventCount < batchSize; ++eventCount) {
+ Event event = channel.take();
+
+ if (event == null) {
+ break;
+ }
+
+ batch.add(event);
+ }
+
+ if (!batch.isEmpty()) {
+ ignite.cache(cacheName).putAll(eventTransformer.transform(batch));
+
+ if (batch.size() < batchSize)
+ sinkCounter.incrementBatchUnderflowCount();
+ else
+ sinkCounter.incrementBatchCompleteCount();
+ }
+ else {
+ sinkCounter.incrementBatchEmptyCount();
+ }
+
+ sinkCounter.addToEventDrainAttemptCount(batch.size());
+
+ transaction.commit();
+
+ sinkCounter.addToEventDrainSuccessCount(batch.size());
+ }
+ catch (Exception e) {
+ log.error("Failed to process events", e);
+
+ try {
+ transaction.rollback();
+ }
+ catch (Throwable e1) {
+ e.addSuppressed(e1);
+ }
+
+ throw new EventDeliveryException(e);
+ }
+ finally {
+ transaction.close();
+ }
+
+ return eventCount == 0 ? Status.BACKOFF : Status.READY;
+ }
+}
diff --git a/modules/flume-ext/src/main/java/org/apache/ignite/stream/flume/IgniteSinkConstants.java b/modules/flume-ext/src/main/java/org/apache/ignite/stream/flume/IgniteSinkConstants.java
new file mode 100644
index 0000000..ddefb24
--- /dev/null
+++ b/modules/flume-ext/src/main/java/org/apache/ignite/stream/flume/IgniteSinkConstants.java
@@ -0,0 +1,35 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF 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.
+ */
+
+package org.apache.ignite.stream.flume;
+
+/**
+ * Configuration strings for sending data to cache. Used in Flume agent configuration file.
+ */
+public class IgniteSinkConstants {
+ /** Ignite configuration file path. */
+ public static final String CFG_PATH = "igniteCfg";
+
+ /** Cache name. */
+ public static final String CFG_CACHE_NAME = "cacheName";
+
+ /** Event transformer implementation. */
+ public static final String CFG_EVENT_TRANSFORMER = "eventTransformer";
+
+ /** Batch size. */
+ public static final String CFG_BATCH_SIZE = "batchSize";
+}
diff --git a/modules/flume-ext/src/main/java/org/apache/ignite/stream/flume/package-info.java b/modules/flume-ext/src/main/java/org/apache/ignite/stream/flume/package-info.java
new file mode 100644
index 0000000..86833b2
--- /dev/null
+++ b/modules/flume-ext/src/main/java/org/apache/ignite/stream/flume/package-info.java
@@ -0,0 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF 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.
+ */
+
+/**
+ * Contains implementation of Flume Sink.
+ */
+
+package org.apache.ignite.stream.flume;
diff --git a/modules/flume-ext/src/test/java/org/apache/ignite/stream/flume/IgniteSinkTest.java b/modules/flume-ext/src/test/java/org/apache/ignite/stream/flume/IgniteSinkTest.java
new file mode 100644
index 0000000..fa8645d
--- /dev/null
+++ b/modules/flume-ext/src/test/java/org/apache/ignite/stream/flume/IgniteSinkTest.java
@@ -0,0 +1,135 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF 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.
+ */
+
+package org.apache.ignite.stream.flume;
+
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+import org.apache.flume.Channel;
+import org.apache.flume.Context;
+import org.apache.flume.Sink;
+import org.apache.flume.Transaction;
+import org.apache.flume.channel.MemoryChannel;
+import org.apache.flume.conf.Configurables;
+import org.apache.flume.event.EventBuilder;
+import org.apache.ignite.Ignite;
+import org.apache.ignite.IgniteCache;
+import org.apache.ignite.configuration.IgniteConfiguration;
+import org.apache.ignite.events.Event;
+import org.apache.ignite.lang.IgnitePredicate;
+import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest;
+import org.junit.Test;
+
+import static org.apache.ignite.events.EventType.EVT_CACHE_OBJECT_PUT;
+
+/**
+ * {@link IgniteSink} test.
+ */
+public class IgniteSinkTest extends GridCommonAbstractTest {
+ /** Number of events to be sent to memory channel. */
+ private static final int EVENT_CNT = 10000;
+
+ /** Cache name. */
+ private static final String CACHE_NAME = "testCache";
+
+ /**
+ * @throws Exception {@link Exception}.
+ */
+ @Test
+ public void testSink() throws Exception {
+ IgniteConfiguration cfg = loadConfiguration("example-ignite.xml");
+
+ cfg.setClientMode(false);
+
+ final Ignite grid = startGrid("igniteServerNode", cfg);
+
+ Context channelContext = new Context();
+
+ channelContext.put("capacity", String.valueOf(EVENT_CNT));
+ channelContext.put("transactionCapacity", String.valueOf(EVENT_CNT));
+
+ Channel memoryChannel = new MemoryChannel();
+
+ Configurables.configure(memoryChannel, channelContext);
+
+ final CountDownLatch latch = new CountDownLatch(EVENT_CNT);
+
+ final IgnitePredicate<Event> putLsnr = new IgnitePredicate<Event>() {
+ @Override public boolean apply(Event evt) {
+ assert evt != null;
+
+ latch.countDown();
+
+ return true;
+ }
+ };
+
+ IgniteSink sink = new IgniteSink() {
+ // Setting the listener on cache before sink processing starts.
+ @Override public synchronized void start() {
+ super.start();
+
+ grid.events(grid.cluster().forCacheNodes(CACHE_NAME)).localListen(putLsnr, EVT_CACHE_OBJECT_PUT);
+ }
+ };
+
+ sink.setName("IgniteSink");
+ sink.setChannel(memoryChannel);
+
+ Context ctx = new Context();
+
+ ctx.put(IgniteSinkConstants.CFG_CACHE_NAME, CACHE_NAME);
+ ctx.put(IgniteSinkConstants.CFG_PATH, "example-ignite.xml");
+ ctx.put(IgniteSinkConstants.CFG_EVENT_TRANSFORMER, "org.apache.ignite.stream.flume.TestEventTransformer");
+
+ Configurables.configure(sink, ctx);
+
+ sink.start();
+
+ try {
+ Transaction tx = memoryChannel.getTransaction();
+
+ tx.begin();
+
+ for (int i = 0; i < EVENT_CNT; i++)
+ memoryChannel.put(EventBuilder.withBody((String.valueOf(i) + ": " + i).getBytes()));
+
+ tx.commit();
+ tx.close();
+
+ Sink.Status status = Sink.Status.READY;
+
+ while (status != Sink.Status.BACKOFF) {
+ status = sink.process();
+ }
+ // Checks that 10000 events successfully processed in 10 seconds.
+ latch.await(10, TimeUnit.SECONDS);
+
+ IgniteCache<String, Integer> cache = grid.cache(CACHE_NAME);
+
+ // Checks that each event was processed properly.
+ for (int i = 0; i < EVENT_CNT; i++) {
+ assertEquals(i, (int)cache.get(String.valueOf(i)));
+ }
+ }
+ finally {
+ sink.stop();
+ }
+
+ grid.events(grid.cluster().forCacheNodes(CACHE_NAME)).stopLocalListen(putLsnr);
+ }
+}
diff --git a/modules/flume-ext/src/test/java/org/apache/ignite/stream/flume/IgniteSinkTestSuite.java b/modules/flume-ext/src/test/java/org/apache/ignite/stream/flume/IgniteSinkTestSuite.java
new file mode 100644
index 0000000..300777d
--- /dev/null
+++ b/modules/flume-ext/src/test/java/org/apache/ignite/stream/flume/IgniteSinkTestSuite.java
@@ -0,0 +1,29 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF 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.
+ */
+
+package org.apache.ignite.stream.flume;
+
+import org.junit.runner.RunWith;
+import org.junit.runners.Suite;
+
+/**
+ * Tests for a Flume sink for Ignite.
+ */
+@RunWith(Suite.class)
+@Suite.SuiteClasses({IgniteSinkTest.class})
+public class IgniteSinkTestSuite {
+}
diff --git a/modules/flume-ext/src/test/java/org/apache/ignite/stream/flume/TestEventTransformer.java b/modules/flume-ext/src/test/java/org/apache/ignite/stream/flume/TestEventTransformer.java
new file mode 100644
index 0000000..c15efbf
--- /dev/null
+++ b/modules/flume-ext/src/test/java/org/apache/ignite/stream/flume/TestEventTransformer.java
@@ -0,0 +1,66 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF 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.
+ */
+
+package org.apache.ignite.stream.flume;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import org.apache.flume.Event;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * A test transformer to convert {@link org.apache.flume.Event} to cacheable entries.
+ */
+public class TestEventTransformer implements EventTransformer<Event, String, Integer> {
+
+ /**
+ * Transforms a Flume event to cacheable entries.
+ *
+ * @param event Flume event to transform.
+ * @return Map of cacheable entries.
+ */
+ private Map<String, Integer> transform(Event event) {
+ final Map<String, Integer> map = new HashMap<>();
+
+ String eventStr = new String(event.getBody());
+
+ if (!eventStr.isEmpty()) {
+ String[] tokens = eventStr.split(":"); // Expects column-delimited one line.
+
+ map.put(tokens[0].trim(), Integer.valueOf(tokens[1].trim()));
+ }
+
+ return map;
+ }
+
+ /**
+ * Transforms a list of Flume event to cacheable entries.
+ *
+ * @param events Flume events to transform.
+ * @return Map of cacheable entries.
+ */
+ @Nullable @Override public Map<String, Integer> transform(List<Event> events) {
+ final Map<String, Integer> map = new HashMap<>();
+
+ for (Event event : events) {
+ map.putAll(transform(event));
+ }
+
+ return map;
+ }
+}
diff --git a/modules/flume-ext/src/test/java/org/apache/ignite/stream/flume/package-info.java b/modules/flume-ext/src/test/java/org/apache/ignite/stream/flume/package-info.java
new file mode 100644
index 0000000..86833b2
--- /dev/null
+++ b/modules/flume-ext/src/test/java/org/apache/ignite/stream/flume/package-info.java
@@ -0,0 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF 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.
+ */
+
+/**
+ * Contains implementation of Flume Sink.
+ */
+
+package org.apache.ignite.stream.flume;
diff --git a/modules/flume-ext/src/test/resources/example-ignite.xml b/modules/flume-ext/src/test/resources/example-ignite.xml
new file mode 100644
index 0000000..fbb05d3
--- /dev/null
+++ b/modules/flume-ext/src/test/resources/example-ignite.xml
@@ -0,0 +1,71 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements. See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The ASF 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.
+-->
+
+<!--
+ Ignite configuration with all defaults and enabled p2p deployment and enabled events.
+ Used for testing IgniteSink running Ignite in a client mode.
+-->
+<beans xmlns="http://www.springframework.org/schema/beans"
+ xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xmlns:util="http://www.springframework.org/schema/util"
+ xsi:schemaLocation="
+ http://www.springframework.org/schema/beans
+ http://www.springframework.org/schema/beans/spring-beans.xsd
+ http://www.springframework.org/schema/util
+ http://www.springframework.org/schema/util/spring-util.xsd">
+ <bean id="ignite.cfg" class="org.apache.ignite.configuration.IgniteConfiguration">
+ <!-- Enable client mode. -->
+ <property name="clientMode" value="true"/>
+
+ <!-- Cache accessed from IgniteSink. -->
+ <property name="cacheConfiguration">
+ <list>
+ <!-- Partitioned cache example configuration with configurations adjusted to server nodes'. -->
+ <bean class="org.apache.ignite.configuration.CacheConfiguration">
+ <property name="atomicityMode" value="ATOMIC"/>
+
+ <property name="name" value="testCache"/>
+ </bean>
+ </list>
+ </property>
+
+ <!-- Enable cache events. -->
+ <property name="includeEventTypes">
+ <list>
+ <!-- Cache events (only EVT_CACHE_OBJECT_PUT for tests). -->
+ <util:constant static-field="org.apache.ignite.events.EventType.EVT_CACHE_OBJECT_PUT"/>
+ </list>
+ </property>
+
+ <!-- Explicitly configure TCP discovery SPI to provide list of initial nodes. -->
+ <property name="discoverySpi">
+ <bean class="org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi">
+ <property name="ipFinder">
+ <bean class="org.apache.ignite.spi.discovery.tcp.ipfinder.vm.TcpDiscoveryVmIpFinder">
+ <property name="addresses">
+ <list>
+ <value>127.0.0.1:47500</value>
+ </list>
+ </property>
+ </bean>
+ </property>
+ </bean>
+ </property>
+ </bean>
+</beans>
diff --git a/pom.xml b/pom.xml
index c0a40cb..e45b43a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -43,6 +43,7 @@
<modules>
<module>modules/flink-ext</module>
+ <module>modules/flume-ext</module>
<module>modules/pub-sub</module>
<module>modules/spring-boot-autoconfigure</module>
<module>modules/spring-boot-client-autoconfigure</module>
