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From ntikho...@apache.org
Subject [22/37] ignite git commit: IGNITE-813: Apache Flink Integration (sink connector) - Fixes #550.
Date Mon, 04 Apr 2016 18:38:28 GMT
IGNITE-813: Apache Flink Integration (sink connector) - Fixes #550.

Signed-off-by: shtykh_roman <rshtykh@yahoo.com>


Project: http://git-wip-us.apache.org/repos/asf/ignite/repo
Commit: http://git-wip-us.apache.org/repos/asf/ignite/commit/b09ecd72
Tree: http://git-wip-us.apache.org/repos/asf/ignite/tree/b09ecd72
Diff: http://git-wip-us.apache.org/repos/asf/ignite/diff/b09ecd72

Branch: refs/heads/ignite-2004
Commit: b09ecd72f62c9e98dd40958cfee0bcd128b777e9
Parents: 04eb6c9
Author: samaitra <saikat.maitra@gmail.com>
Authored: Fri Apr 1 10:26:35 2016 +0900
Committer: shtykh_roman <rshtykh@yahoo.com>
Committed: Fri Apr 1 10:26:35 2016 +0900

----------------------------------------------------------------------
 modules/flink/README.txt                        |  33 +++
 modules/flink/licenses/apache-2.0.txt           | 202 ++++++++++++++++++
 modules/flink/pom.xml                           | 167 +++++++++++++++
 .../apache/ignite/sink/flink/IgniteSink.java    | 204 +++++++++++++++++++
 .../apache/ignite/sink/flink/package-info.java  |  22 ++
 .../sink/flink/FlinkIgniteSinkSelfTest.java     | 188 +++++++++++++++++
 .../flink/FlinkIgniteSinkSelfTestSuite.java     |  38 ++++
 .../flink/src/test/resources/example-ignite.xml |  70 +++++++
 pom.xml                                         |   1 +
 9 files changed, 925 insertions(+)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/ignite/blob/b09ecd72/modules/flink/README.txt
----------------------------------------------------------------------
diff --git a/modules/flink/README.txt b/modules/flink/README.txt
new file mode 100644
index 0000000..a198b1b
--- /dev/null
+++ b/modules/flink/README.txt
@@ -0,0 +1,33 @@
+Apache Ignite Flink Sink Module
+-----------------------------------
+
+Apache Ignite Flink Sink module is a streaming connector to inject Flink data into Ignite
cache.
+
+Starting data transfer to Ignite can be done with the following steps.
+
+1. Import Ignite Flink Sink Module in Maven Project
+
+If you are using Maven to manage dependencies of your project, you can add Flink module
+dependency like this (replace '${ignite.version}' with actual Ignite version you are
+interested in):
+
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
+                        http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    ...
+    <dependencies>
+        ...
+        <dependency>
+            <groupId>org.apache.ignite</groupId>
+            <artifactId>ignite-flink</artifactId>
+            <version>${ignite.version}</version>
+        </dependency>
+        ...
+    </dependencies>
+    ...
+</project>
+
+2. Create an Ignite configuration file (see example-ignite.xml) and make sure it is accessible
from the sink.
+
+3. Make sure your data input to the sink is specified. For example `input.addSink(igniteSinkObject)`

http://git-wip-us.apache.org/repos/asf/ignite/blob/b09ecd72/modules/flink/licenses/apache-2.0.txt
----------------------------------------------------------------------
diff --git a/modules/flink/licenses/apache-2.0.txt b/modules/flink/licenses/apache-2.0.txt
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/modules/flink/licenses/apache-2.0.txt
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
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+
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http://git-wip-us.apache.org/repos/asf/ignite/blob/b09ecd72/modules/flink/pom.xml
----------------------------------------------------------------------
diff --git a/modules/flink/pom.xml b/modules/flink/pom.xml
new file mode 100644
index 0000000..5d9ac24
--- /dev/null
+++ b/modules/flink/pom.xml
@@ -0,0 +1,167 @@
+<?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-flink</artifactId>
+    <version>1.6.0-SNAPSHOT</version>
+    <url>http://ignite.apache.org</url>
+
+    <properties>
+        <flink.version>1.0.0</flink.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.ignite</groupId>
+            <artifactId>ignite-core</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.flink</groupId>
+            <artifactId>flink-java</artifactId>
+            <version>${flink.version}</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>log4j</groupId>
+                    <artifactId>log4j</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>slf4j-log4j12</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>commons-logging</groupId>
+                    <artifactId>commons-logging</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>slf4j-simple</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>log4j-over-slf4j</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.zookeeper</groupId>
+                    <artifactId>zookeeper</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.flink</groupId>
+            <artifactId>flink-streaming-java_2.10</artifactId>
+            <version>${flink.version}</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>log4j</groupId>
+                    <artifactId>log4j</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>slf4j-log4j12</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>commons-logging</groupId>
+                    <artifactId>commons-logging</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>slf4j-simple</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>log4j-over-slf4j</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.zookeeper</groupId>
+                    <artifactId>zookeeper</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.flink</groupId>
+            <artifactId>flink-clients_2.10</artifactId>
+            <version>${flink.version}</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>log4j</groupId>
+                    <artifactId>log4j</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>slf4j-log4j12</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>commons-logging</groupId>
+                    <artifactId>commons-logging</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>slf4j-simple</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>log4j-over-slf4j</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.zookeeper</groupId>
+                    <artifactId>zookeeper</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.ignite</groupId>
+            <artifactId>ignite-core</artifactId>
+            <version>${project.version}</version>
+            <type>test-jar</type>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.ignite</groupId>
+            <artifactId>ignite-log4j</artifactId>
+            <version>${project.version}</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.ignite</groupId>
+            <artifactId>ignite-spring</artifactId>
+            <version>${project.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+</project>

http://git-wip-us.apache.org/repos/asf/ignite/blob/b09ecd72/modules/flink/src/main/java/org/apache/ignite/sink/flink/IgniteSink.java
----------------------------------------------------------------------
diff --git a/modules/flink/src/main/java/org/apache/ignite/sink/flink/IgniteSink.java b/modules/flink/src/main/java/org/apache/ignite/sink/flink/IgniteSink.java
new file mode 100644
index 0000000..e0ae783
--- /dev/null
+++ b/modules/flink/src/main/java/org/apache/ignite/sink/flink/IgniteSink.java
@@ -0,0 +1,204 @@
+/*
+ * 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.sink.flink;
+
+import java.util.Map;
+import org.apache.flink.streaming.api.functions.sink.RichSinkFunction;
+import org.apache.ignite.Ignite;
+import org.apache.ignite.IgniteDataStreamer;
+import org.apache.ignite.IgniteException;
+import org.apache.ignite.IgniteLogger;
+import org.apache.ignite.Ignition;
+import org.apache.ignite.internal.util.typedef.internal.A;
+
+/**
+ * Apache Flink Ignite sink implemented as a RichSinkFunction.
+ */
+public class IgniteSink<IN> extends RichSinkFunction<IN> {
+    /** Default flush frequency. */
+    private static final long DFLT_FLUSH_FREQ = 10000L;
+
+    /** Logger. */
+    private final IgniteLogger log;
+
+    /** Automatic flush frequency. */
+    private long autoFlushFrequency = DFLT_FLUSH_FREQ;
+
+    /** Enables overwriting existing values in cache. */
+    private boolean allowOverwrite = false;
+
+    /** Flag for stopped state. */
+    private static volatile boolean stopped = true;
+
+    /** Ignite grid configuration file. */
+    private static String igniteCfgFile;
+
+    /** Cache name. */
+    private static String cacheName;
+
+    /**
+     * Gets the cache name.
+     *
+     * @return Cache name.
+     */
+    public String getCacheName() {
+        return cacheName;
+    }
+
+    /**
+     * Gets Ignite configuration file.
+     *
+     * @return Configuration file.
+     */
+    public String getIgniteConfigFile() {
+        return igniteCfgFile;
+    }
+
+    /**
+     * Obtains data flush frequency.
+     *
+     * @return Flush frequency.
+     */
+    public long getAutoFlushFrequency() {
+        return autoFlushFrequency;
+    }
+
+    /**
+     * Specifies data flush frequency into the grid.
+     *
+     * @param autoFlushFrequency Flush frequency.
+     */
+    public void setAutoFlushFrequency(long autoFlushFrequency) {
+        this.autoFlushFrequency = autoFlushFrequency;
+    }
+
+    /**
+     * Obtains flag for enabling overwriting existing values in cache.
+     *
+     * @return True if overwriting is allowed, false otherwise.
+     */
+    public boolean getAllowOverwrite() {
+        return allowOverwrite;
+    }
+
+    /**
+     * Enables overwriting existing values in cache.
+     *
+     * @param allowOverwrite Flag value.
+     */
+    public void setAllowOverwrite(boolean allowOverwrite) {
+        this.allowOverwrite = allowOverwrite;
+    }
+
+    /**
+     * Default IgniteSink constructor.
+     *
+     * @param cacheName Cache name.
+     * @param igniteCfgFile Ignite configuration file.
+     */
+    public IgniteSink(String cacheName, String igniteCfgFile) {
+        this.cacheName = cacheName;
+        this.igniteCfgFile = igniteCfgFile;
+        this.log = SinkContext.getIgnite().log();
+    }
+
+    /**
+     * Starts streamer.
+     *
+     * @throws IgniteException If failed.
+     */
+    @SuppressWarnings("unchecked")
+    public void start() throws IgniteException {
+        A.notNull(igniteCfgFile, "Ignite config file");
+        A.notNull(cacheName, "Cache name");
+
+        SinkContext.getStreamer().autoFlushFrequency(autoFlushFrequency);
+        SinkContext.getStreamer().allowOverwrite(allowOverwrite);
+
+        stopped = false;
+    }
+
+    /**
+     * Stops streamer.
+     *
+     * @throws IgniteException If failed.
+     */
+    public void stop() throws IgniteException {
+        if (stopped)
+            return;
+
+        stopped = true;
+
+        SinkContext.getStreamer().close();
+        SinkContext.getIgnite().cache(cacheName).close();
+        SinkContext.getIgnite().close();
+    }
+
+    /**
+     * Transfers data into grid. It is called when new data
+     * arrives to the sink, and forwards it to {@link IgniteDataStreamer}.
+     *
+     * @param in IN.
+     */
+    @SuppressWarnings("unchecked")
+    @Override
+    public void invoke(IN in) {
+        try {
+            if (!(in instanceof Map))
+                throw new IgniteException("Map as a streamer input is expected!");
+
+            SinkContext.getStreamer().addData((Map)in);
+        }
+        catch (Exception e) {
+            log.error("Error while processing IN of " + cacheName, e);
+        }
+    }
+
+    /**
+     * Streamer context initializing grid and data streamer instances on demand.
+     */
+    private static class SinkContext {
+        /** Constructor. */
+        private SinkContext() {
+        }
+
+        /** Instance holder. */
+        private static class Holder {
+            private static final Ignite IGNITE = Ignition.start(igniteCfgFile);
+            private static final IgniteDataStreamer STREAMER = IGNITE.dataStreamer(cacheName);
+        }
+
+        /**
+         * Obtains grid instance.
+         *
+         * @return Grid instance.
+         */
+        private static Ignite getIgnite() {
+            return Holder.IGNITE;
+        }
+
+        /**
+         * Obtains data streamer instance.
+         *
+         * @return Data streamer instance.
+         */
+        private static IgniteDataStreamer getStreamer() {
+            return Holder.STREAMER;
+        }
+    }
+}

http://git-wip-us.apache.org/repos/asf/ignite/blob/b09ecd72/modules/flink/src/main/java/org/apache/ignite/sink/flink/package-info.java
----------------------------------------------------------------------
diff --git a/modules/flink/src/main/java/org/apache/ignite/sink/flink/package-info.java b/modules/flink/src/main/java/org/apache/ignite/sink/flink/package-info.java
new file mode 100644
index 0000000..7b1437c
--- /dev/null
+++ b/modules/flink/src/main/java/org/apache/ignite/sink/flink/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.
+ */
+
+/**
+ * <!-- Package description. -->
+ * IgniteSink -- streaming connector integration with Apache Flink.
+ */
+package org.apache.ignite.sink.flink;

http://git-wip-us.apache.org/repos/asf/ignite/blob/b09ecd72/modules/flink/src/test/java/org/apache/ignite/sink/flink/FlinkIgniteSinkSelfTest.java
----------------------------------------------------------------------
diff --git a/modules/flink/src/test/java/org/apache/ignite/sink/flink/FlinkIgniteSinkSelfTest.java
b/modules/flink/src/test/java/org/apache/ignite/sink/flink/FlinkIgniteSinkSelfTest.java
new file mode 100644
index 0000000..596dea7
--- /dev/null
+++ b/modules/flink/src/test/java/org/apache/ignite/sink/flink/FlinkIgniteSinkSelfTest.java
@@ -0,0 +1,188 @@
+/*
+ * 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.sink.flink;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.CountDownLatch;
+import org.apache.flink.streaming.api.datastream.DataStream;
+import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
+import org.apache.flink.streaming.api.functions.source.SourceFunction;
+import org.apache.ignite.Ignite;
+import org.apache.ignite.configuration.IgniteConfiguration;
+import org.apache.ignite.events.CacheEvent;
+import org.apache.ignite.events.EventType;
+import org.apache.ignite.lang.IgnitePredicate;
+import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest;
+
+import static org.apache.ignite.events.EventType.EVT_CACHE_OBJECT_PUT;
+
+/**
+ * Tests for {@link IgniteSink}.
+ */
+public class FlinkIgniteSinkSelfTest extends GridCommonAbstractTest {
+    /** Cache name. */
+    private static final String TEST_CACHE = "testCache";
+
+    /** Cache entries count. */
+    private static final int CACHE_ENTRY_COUNT = 10000;
+
+    /** Streaming events for testing. */
+    private static final long DFLT_STREAMING_EVENT = 10000;
+
+    /** Ignite instance. */
+    private Ignite ignite;
+
+    /** Ignite test configuration file. */
+    private static final String GRID_CONF_FILE = "modules/flink/src/test/resources/example-ignite.xml";
+
+    /** {@inheritDoc} */
+    @Override protected long getTestTimeout() {
+        return 10_000;
+    }
+
+    /** {@inheritDoc} */
+    @SuppressWarnings("unchecked")
+    @Override protected void beforeTest() throws Exception {
+        IgniteConfiguration cfg = loadConfiguration(GRID_CONF_FILE);
+
+        cfg.setClientMode(false);
+
+        ignite = startGrid("igniteServerNode", cfg);
+    }
+
+    /** {@inheritDoc} */
+    @Override protected void afterTest() throws Exception {
+        stopAllGrids();
+    }
+
+    /**
+     * Tests for the Flink sink.
+     * Ignite started in sink based on what is specified in the configuration file.
+     *
+     * @throws Exception
+     */
+    @SuppressWarnings("unchecked")
+    public void testFlinkIgniteSink() throws Exception {
+        StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
+
+        env.getConfig().disableSysoutLogging();
+
+        IgniteSink igniteSink = new IgniteSink(TEST_CACHE, GRID_CONF_FILE);
+
+        igniteSink.setAllowOverwrite(true);
+
+        igniteSink.setAutoFlushFrequency(10);
+
+        igniteSink.start();
+
+        CacheListener listener = subscribeToPutEvents();
+
+        DataStream<Map> stream = env.addSource(new SourceFunction<Map>() {
+
+            private boolean running = true;
+
+            @Override
+            public void run(SourceContext<Map> ctx) throws Exception {
+                Map testDataMap = new HashMap<>();
+                long cnt = 0;
+
+                while (running && (cnt < DFLT_STREAMING_EVENT))  {
+                    testDataMap.put(cnt, "ignite-" + cnt);
+                    cnt++;
+                }
+
+                ctx.collect(testDataMap);
+            }
+
+            @Override
+            public void cancel() {
+                running = false;
+            }
+        }).setParallelism(1);
+
+        assertEquals(0, ignite.cache(TEST_CACHE).size());
+
+        // sink data into the grid.
+        stream.addSink(igniteSink);
+
+        try {
+            env.execute();
+
+            CountDownLatch latch = listener.getLatch();
+
+            // Enough events was handled in 10 seconds. Limited by test's timeout.
+            latch.await();
+
+            unsubscribeToPutEvents(listener);
+
+            assertEquals(DFLT_STREAMING_EVENT, ignite.getOrCreateCache(TEST_CACHE).size());
+
+            for (long i = 0; i < DFLT_STREAMING_EVENT; i++)
+                assertEquals("ignite-" + i, ignite.getOrCreateCache(TEST_CACHE).get(i));
+
+        }
+        finally {
+            igniteSink.stop();
+        }
+    }
+
+    /**
+     * Sets a listener for {@link EventType#EVT_CACHE_OBJECT_PUT}.
+     *
+     * @return Cache listener.
+     */
+    private CacheListener subscribeToPutEvents() {
+        // Listen to cache PUT events and expect as many as messages as test data items.
+        CacheListener listener = new CacheListener();
+
+        ignite.events(ignite.cluster().forCacheNodes(null)).localListen(listener, EVT_CACHE_OBJECT_PUT);
+
+        return listener;
+    }
+
+    /**
+     * Removes the listener for {@link EventType#EVT_CACHE_OBJECT_PUT}.
+     *
+     * @param listener Cache listener.
+     */
+    private void unsubscribeToPutEvents(CacheListener listener) {
+        ignite.events(ignite.cluster().forCacheNodes(null)).stopLocalListen(listener, EVT_CACHE_OBJECT_PUT);
+    }
+
+    /** Listener. */
+    private class CacheListener implements IgnitePredicate<CacheEvent> {
+        private final CountDownLatch latch = new CountDownLatch(CACHE_ENTRY_COUNT);
+
+        /** @return Latch. */
+        public CountDownLatch getLatch() {
+            return latch;
+        }
+
+        /**
+         * @param evt Cache Event.
+         * @return {@code true}.
+         */
+        @Override
+        public boolean apply(CacheEvent evt) {
+            latch.countDown();
+
+            return true;
+        }
+    }
+}

http://git-wip-us.apache.org/repos/asf/ignite/blob/b09ecd72/modules/flink/src/test/java/org/apache/ignite/sink/flink/FlinkIgniteSinkSelfTestSuite.java
----------------------------------------------------------------------
diff --git a/modules/flink/src/test/java/org/apache/ignite/sink/flink/FlinkIgniteSinkSelfTestSuite.java
b/modules/flink/src/test/java/org/apache/ignite/sink/flink/FlinkIgniteSinkSelfTestSuite.java
new file mode 100644
index 0000000..b6934e2
--- /dev/null
+++ b/modules/flink/src/test/java/org/apache/ignite/sink/flink/FlinkIgniteSinkSelfTestSuite.java
@@ -0,0 +1,38 @@
+/*
+ * 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.sink.flink;
+
+import junit.framework.TestSuite;
+
+/**
+ * Apache Flink sink tests.
+ */
+public class FlinkIgniteSinkSelfTestSuite extends TestSuite {
+
+    /**
+     * @return Test suite.
+     * @throws Exception Thrown in case of the failure.
+     */
+    public static TestSuite suite() throws Exception {
+        TestSuite suite = new TestSuite("Apache Flink sink Test Suite");
+
+        suite.addTest(new TestSuite(FlinkIgniteSinkSelfTest.class));
+
+        return suite;
+    }
+}

http://git-wip-us.apache.org/repos/asf/ignite/blob/b09ecd72/modules/flink/src/test/resources/example-ignite.xml
----------------------------------------------------------------------
diff --git a/modules/flink/src/test/resources/example-ignite.xml b/modules/flink/src/test/resources/example-ignite.xml
new file mode 100644
index 0000000..b8ddc8f
--- /dev/null
+++ b/modules/flink/src/test/resources/example-ignite.xml
@@ -0,0 +1,70 @@
+<?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 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>

http://git-wip-us.apache.org/repos/asf/ignite/blob/b09ecd72/pom.xml
----------------------------------------------------------------------
diff --git a/pom.xml b/pom.xml
index bde8a2c..3a4a268 100644
--- a/pom.xml
+++ b/pom.xml
@@ -85,6 +85,7 @@
         <module>modules/osgi-karaf</module>
         <module>modules/osgi</module>
         <module>modules/web/ignite-weblogic-test</module>
+        <module>modules/flink</module>
     </modules>
 
     <profiles>


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