IGNITE-12357 Migrate Twitter module to ignite-extensions - Fixes #12.
Signed-off-by: samaitra <saikat.maitra@gmail.com>
diff --git a/modules/twitter-ext/README.txt b/modules/twitter-ext/README.txt
new file mode 100644
index 0000000..5215786
--- /dev/null
+++ b/modules/twitter-ext/README.txt
@@ -0,0 +1,32 @@
+Apache Ignite Twitter Streamer Module
+------------------------
+
+Apache Ignite Twitter Streamer module provides streaming from Twitter to Ignite cache.
+
+To enable Twitter Streamer module when starting a standalone node, move 'optional/ignite-twitter' folder to
+'libs' folder before running 'ignite.{sh|bat}' script. The content of the module folder will
+be added to classpath in this case.
+
+Importing Ignite Twitter Streamer Module In Maven Project
+-------------------------------------
+
+If you are using Maven to manage dependencies of your project, you can add JCL module
+dependency like this (replace '${ignite.version}' with actual Ignite version you are
+interested in):
+
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+ xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
+ http://maven.apache.org/xsd/maven-4.0.0.xsd">
+ ...
+ <dependencies>
+ ...
+ <dependency>
+ <groupId>org.apache.ignite</groupId>
+ <artifactId>ignite-twitter-ext</artifactId>
+ <version>${ignite.version}</version>
+ </dependency>
+ ...
+ </dependencies>
+ ...
+</project>
diff --git a/modules/twitter-ext/licenses/apache-2.0.txt b/modules/twitter-ext/licenses/apache-2.0.txt
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/modules/twitter-ext/licenses/apache-2.0.txt
@@ -0,0 +1,202 @@
+
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+
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diff --git a/modules/twitter-ext/modules/core/src/test/config/log4j-test.xml b/modules/twitter-ext/modules/core/src/test/config/log4j-test.xml
new file mode 100755
index 0000000..370a50a
--- /dev/null
+++ b/modules/twitter-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/twitter-ext/modules/core/src/test/config/tests.properties b/modules/twitter-ext/modules/core/src/test/config/tests.properties
new file mode 100644
index 0000000..18b3606
--- /dev/null
+++ b/modules/twitter-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/twitter-ext/pom.xml b/modules/twitter-ext/pom.xml
new file mode 100644
index 0000000..b3dc46b
--- /dev/null
+++ b/modules/twitter-ext/pom.xml
@@ -0,0 +1,131 @@
+<?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-extensions-parent</artifactId>
+ <version>1</version>
+ <relativePath>../../parent</relativePath>
+ </parent>
+
+ <artifactId>ignite-twitter-ext</artifactId>
+ <version>1.0.0-SNAPSHOT</version>
+ <url>http://ignite.apache.org</url>
+
+ <dependencies>
+ <dependency>
+ <groupId>org.apache.ignite</groupId>
+ <artifactId>ignite-core</artifactId>
+ <version>${ignite.version}</version>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.ignite</groupId>
+ <artifactId>ignite-log4j</artifactId>
+ <version>${ignite.version}</version>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.ignite</groupId>
+ <artifactId>ignite-spring</artifactId>
+ <version>${ignite.version}</version>
+ <scope>test</scope>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.ignite</groupId>
+ <artifactId>ignite-core</artifactId>
+ <version>${ignite.version}</version>
+ <type>test-jar</type>
+ <scope>test</scope>
+ </dependency>
+
+ <dependency>
+ <groupId>com.twitter</groupId>
+ <artifactId>hbc-twitter4j</artifactId>
+ <version>${twitter.hbc.version}</version>
+ </dependency>
+
+ <dependency>
+ <groupId>com.github.tomakehurst</groupId>
+ <artifactId>wiremock</artifactId>
+ <version>1.58</version>
+ <classifier>standalone</classifier>
+ <exclusions>
+ <exclusion>
+ <groupId>org.mortbay.jetty</groupId>
+ <artifactId>jetty</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>com.google.guava</groupId>
+ <artifactId>guava</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>com.fasterxml.jackson.core</groupId>
+ <artifactId>jackson-core</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>com.fasterxml.jackson.core</groupId>
+ <artifactId>jackson-annotations</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>com.fasterxml.jackson.core</groupId>
+ <artifactId>jackson-databind</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.apache.httpcomponents</groupId>
+ <artifactId>httpclient</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.skyscreamer</groupId>
+ <artifactId>jsonassert</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>xmlunit</groupId>
+ <artifactId>xmlunit</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>com.jayway.jsonpath</groupId>
+ <artifactId>json-path</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>net.sf.jopt-simple</groupId>
+ <artifactId>jopt-simple</artifactId>
+ </exclusion>
+ </exclusions>
+ <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/twitter-ext/src/main/java/org/apache/ignite/stream/twitter/OAuthSettings.java b/modules/twitter-ext/src/main/java/org/apache/ignite/stream/twitter/OAuthSettings.java
new file mode 100644
index 0000000..c2e46a5
--- /dev/null
+++ b/modules/twitter-ext/src/main/java/org/apache/ignite/stream/twitter/OAuthSettings.java
@@ -0,0 +1,86 @@
+/*
+ * 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.twitter;
+
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * OAuth keys holder.
+ */
+public class OAuthSettings {
+ /** */
+ private final String consumerKey;
+
+ /** */
+ private final String consumerSecret;
+
+ /** */
+ private final String accessToken;
+
+ /** */
+ private final String accessTokenSecret;
+
+ /**
+ * @param consumerKey Consumer key.
+ * @param consumerSecret Consumer secret.
+ * @param accessToken Access token.
+ * @param accessTokenSecret Access secret token.
+ */
+ public OAuthSettings(
+ @NotNull String consumerKey,
+ @NotNull String consumerSecret,
+ @NotNull String accessToken,
+ @NotNull String accessTokenSecret) {
+ this.consumerKey = consumerKey;
+ this.consumerSecret = consumerSecret;
+ this.accessToken = accessToken;
+ this.accessTokenSecret = accessTokenSecret;
+ }
+
+ /**
+ * @return Consumer key.
+ */
+ @NotNull
+ public String getConsumerKey() {
+ return consumerKey;
+ }
+
+ /**
+ * @return Consumer secret.
+ */
+ @NotNull
+ public String getConsumerSecret() {
+ return consumerSecret;
+ }
+
+ /**
+ * @return Access token.
+ */
+ @NotNull
+ public String getAccessToken() {
+ return accessToken;
+ }
+
+ /**
+ * @return Access token secret.
+ */
+ @NotNull
+ public String getAccessTokenSecret() {
+ return accessTokenSecret;
+ }
+}
diff --git a/modules/twitter-ext/src/main/java/org/apache/ignite/stream/twitter/TwitterStreamer.java b/modules/twitter-ext/src/main/java/org/apache/ignite/stream/twitter/TwitterStreamer.java
new file mode 100644
index 0000000..77ce2ef
--- /dev/null
+++ b/modules/twitter-ext/src/main/java/org/apache/ignite/stream/twitter/TwitterStreamer.java
@@ -0,0 +1,294 @@
+/*
+ * 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.twitter;
+
+import com.google.common.base.Splitter;
+import com.google.common.collect.Lists;
+import com.twitter.hbc.ClientBuilder;
+import com.twitter.hbc.core.Client;
+import com.twitter.hbc.core.HttpConstants;
+import com.twitter.hbc.core.HttpHosts;
+import com.twitter.hbc.core.endpoint.DefaultStreamingEndpoint;
+import com.twitter.hbc.core.endpoint.SitestreamEndpoint;
+import com.twitter.hbc.core.endpoint.StatusesFilterEndpoint;
+import com.twitter.hbc.core.endpoint.StatusesFirehoseEndpoint;
+import com.twitter.hbc.core.endpoint.StatusesSampleEndpoint;
+import com.twitter.hbc.core.endpoint.StreamingEndpoint;
+import com.twitter.hbc.core.endpoint.UserstreamEndpoint;
+import com.twitter.hbc.core.processor.StringDelimitedProcessor;
+import com.twitter.hbc.httpclient.auth.Authentication;
+import com.twitter.hbc.httpclient.auth.OAuth1;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.atomic.AtomicInteger;
+import org.apache.ignite.IgniteDataStreamer;
+import org.apache.ignite.IgniteException;
+import org.apache.ignite.IgniteLogger;
+import org.apache.ignite.internal.util.typedef.internal.A;
+import org.apache.ignite.internal.util.typedef.internal.U;
+import org.apache.ignite.stream.StreamAdapter;
+
+/**
+ * Streamer that consumes from a Twitter Streaming API and feeds transformed key-value pairs,
+ * by default <tweetId, text>, into an {@link IgniteDataStreamer} instance.
+ * <p>
+ * This streamer uses https://dev.twitter.com/streaming API and supports Public API, User Streams,
+ * Site Streams and Firehose.
+ * <p>
+ * This Streamer features:
+ * <ul>
+ * <li>Supports OAuth1 authentication scheme.
+ * <br/> BasicAuth not supported by Streaming API https://dev.twitter.com/streaming/overview/connecting</li>
+ * <li>Provide all params in apiParams map. https://dev.twitter.com/streaming/overview/request-parameters</li>
+ * </ul>
+ */
+public class TwitterStreamer<K, V> extends StreamAdapter<String, K, V> {
+ /** Logger. */
+ protected IgniteLogger log;
+
+ /** Threads count used to transform tweets. */
+ private int threadsCount = 1;
+
+ /** Twitter Streaming API params. See https://dev.twitter.com/streaming/overview/request-parameters */
+ private Map<String, String> apiParams;
+
+ /** Twitter streaming API endpoint example, '/statuses/filter.json' or '/statuses/firehose.json' */
+ private String endpointUrl;
+
+ /** OAuth params holder */
+ private OAuthSettings oAuthSettings;
+
+ /** shared variable to communicate/signal that streamer is already running or can be started */
+ private final AtomicInteger running = new AtomicInteger();
+
+ /**
+ * Size of buffer for streaming, as for some tracking terms traffic can be low and for others high, this is
+ * configurable
+ */
+ private Integer bufferCapacity = 100000;
+
+ /** Twitter streaming client (Twitter HBC) to interact with stream */
+ private Client client;
+
+ /** Process stream asynchronously */
+ private ExecutorService tweetStreamProcessor;
+
+ /** Param key name constant for Site streaming */
+ private final String SITE_USER_ID_KEY = "follow";
+
+ /**
+ * @param oAuthSettings OAuth Settings
+ */
+ public TwitterStreamer(OAuthSettings oAuthSettings) {
+ this.oAuthSettings = oAuthSettings;
+ }
+
+ /**
+ * Starts streamer.
+ */
+ public void start() {
+ if (!running.compareAndSet(0, 1))
+ throw new IgniteException("Attempted to start an already started Twitter Streamer");
+
+ validateConfig();
+
+ log = getIgnite().log();
+
+ final BlockingQueue<String> tweetQueue = new LinkedBlockingQueue<>(bufferCapacity);
+
+ client = getClient(tweetQueue);
+
+ client.connect();
+
+ tweetStreamProcessor = Executors.newFixedThreadPool(threadsCount);
+
+ for (int i = 0; i < threadsCount; i++) {
+ Callable<Boolean> task = new Callable<Boolean>() {
+
+ @Override public Boolean call() {
+ while (true) {
+ try {
+ String tweet = tweetQueue.take();
+
+ addMessage(tweet);
+ }
+ catch (InterruptedException e) {
+ U.warn(log, "Tweets transformation was interrupted", e);
+
+ return true;
+ }
+ }
+ }
+ };
+
+ tweetStreamProcessor.submit(task);
+ }
+ }
+
+ /**
+ * Stops streamer.
+ */
+ public void stop() {
+ if (running.get() == 0)
+ throw new IgniteException("Attempted to stop an already stopped Twitter Streamer");
+
+ tweetStreamProcessor.shutdownNow();
+
+ client.stop();
+
+ running.compareAndSet(1, 0);
+ }
+
+ /**
+ * Validates config at start.
+ */
+ protected void validateConfig() {
+ A.notNull(getStreamer(), "Streamer");
+ A.notNull(getIgnite(), "Ignite");
+ A.notNull(endpointUrl, "Twitter Streaming API endpoint");
+
+ A.ensure(getSingleTupleExtractor() != null || getMultipleTupleExtractor() != null, "Twitter extractor");
+
+ String followParam = apiParams.get(SITE_USER_ID_KEY);
+
+ A.ensure(followParam != null && followParam.matches("^(\\d+,? ?)+$"),
+ "Site streaming endpoint must provide 'follow' param with value as comma separated numbers");
+ }
+
+ /**
+ * @param tweetQueue Tweet queue.
+ * @return Client.
+ */
+ protected Client getClient(BlockingQueue<String> tweetQueue) {
+ StreamingEndpoint endpoint;
+
+ HttpHosts hosts;
+
+ switch (endpointUrl.toLowerCase()) {
+ case StatusesFilterEndpoint.PATH:
+ endpoint = new StatusesFilterEndpoint();
+
+ hosts = HttpHosts.STREAM_HOST;
+
+ break;
+ case StatusesFirehoseEndpoint.PATH:
+ endpoint = new StatusesFirehoseEndpoint();
+
+ hosts = HttpHosts.STREAM_HOST;
+
+ break;
+ case StatusesSampleEndpoint.PATH:
+ endpoint = new StatusesSampleEndpoint();
+
+ hosts = HttpHosts.STREAM_HOST;
+
+ break;
+ case UserstreamEndpoint.PATH:
+ endpoint = new UserstreamEndpoint();
+
+ hosts = HttpHosts.USERSTREAM_HOST;
+
+ break;
+ case SitestreamEndpoint.PATH:
+ String follow = apiParams.remove(SITE_USER_ID_KEY);
+
+ List<Long> followers = Lists.newArrayList();
+
+ for (String follower : Splitter.on(',').trimResults().omitEmptyStrings().split(follow))
+ followers.add(Long.valueOf(follower));
+
+ endpoint = new SitestreamEndpoint(followers);
+
+ hosts = HttpHosts.SITESTREAM_HOST;
+
+ break;
+ default:
+ endpoint = new DefaultStreamingEndpoint(endpointUrl, HttpConstants.HTTP_GET, false);
+
+ hosts = HttpHosts.STREAM_HOST;
+
+ }
+
+ for (Map.Entry<String, String> entry : apiParams.entrySet()) {
+ endpoint.addPostParameter(entry.getKey(), entry.getValue());
+ }
+
+ return buildClient(tweetQueue, hosts, endpoint);
+ }
+
+ /**
+ * @param tweetQueue tweet Queue.
+ * @param hosts Hostes.
+ * @param endpoint Endpoint.
+ * @return Client.
+ */
+ protected Client buildClient(BlockingQueue<String> tweetQueue, HttpHosts hosts, StreamingEndpoint endpoint) {
+ Authentication authentication = new OAuth1(oAuthSettings.getConsumerKey(), oAuthSettings.getConsumerSecret(),
+ oAuthSettings.getAccessToken(), oAuthSettings.getAccessTokenSecret());
+
+ ClientBuilder builder = new ClientBuilder()
+ .name("Ignite-Twitter-Client")
+ .hosts(hosts)
+ .authentication(authentication)
+ .endpoint(endpoint)
+ .processor(new StringDelimitedProcessor(tweetQueue));
+
+ return builder.build();
+ }
+
+ /**
+ * Sets API Params.
+ *
+ * @param apiParams API Params.
+ */
+ public void setApiParams(Map<String, String> apiParams) {
+ this.apiParams = apiParams;
+ }
+
+ /**
+ * Sets Endpoint URL.
+ *
+ * @param endpointUrl Endpoint URL.
+ */
+ public void setEndpointUrl(String endpointUrl) {
+ this.endpointUrl = endpointUrl;
+ }
+
+ /**
+ * Sets Buffer capacity.
+ *
+ * @param bufferCapacity Buffer capacity.
+ */
+ public void setBufferCapacity(Integer bufferCapacity) {
+ this.bufferCapacity = bufferCapacity;
+ }
+
+ /**
+ * Sets Threads count.
+ *
+ * @param threadsCount Threads count.
+ */
+ public void setThreadsCount(int threadsCount) {
+ this.threadsCount = threadsCount;
+ }
+}
diff --git a/modules/twitter-ext/src/main/java/org/apache/ignite/stream/twitter/package-info.java b/modules/twitter-ext/src/main/java/org/apache/ignite/stream/twitter/package-info.java
new file mode 100644
index 0000000..d419c28
--- /dev/null
+++ b/modules/twitter-ext/src/main/java/org/apache/ignite/stream/twitter/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 Twitter Streamer.
+ */
+
+package org.apache.ignite.stream.twitter;
diff --git a/modules/twitter-ext/src/test/java/org/apache/ignite/stream/twitter/IgniteTwitterStreamerTest.java b/modules/twitter-ext/src/test/java/org/apache/ignite/stream/twitter/IgniteTwitterStreamerTest.java
new file mode 100644
index 0000000..3e61809
--- /dev/null
+++ b/modules/twitter-ext/src/test/java/org/apache/ignite/stream/twitter/IgniteTwitterStreamerTest.java
@@ -0,0 +1,252 @@
+/*
+ * 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.twitter;
+
+import com.github.tomakehurst.wiremock.WireMockServer;
+import com.github.tomakehurst.wiremock.core.WireMockConfiguration;
+import com.github.tomakehurst.wiremock.junit.WireMockClassRule;
+import com.twitter.hbc.core.HttpHosts;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.CountDownLatch;
+import org.apache.ignite.Ignite;
+import org.apache.ignite.IgniteCache;
+import org.apache.ignite.IgniteDataStreamer;
+import org.apache.ignite.IgniteException;
+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 org.junit.ClassRule;
+import org.junit.Rule;
+import org.junit.Test;
+import twitter4j.Status;
+import twitter4j.TwitterException;
+import twitter4j.TwitterObjectFactory;
+
+import static com.github.tomakehurst.wiremock.client.WireMock.aResponse;
+import static com.github.tomakehurst.wiremock.client.WireMock.get;
+import static com.github.tomakehurst.wiremock.client.WireMock.stubFor;
+import static com.github.tomakehurst.wiremock.client.WireMock.urlMatching;
+import static org.apache.ignite.events.EventType.EVT_CACHE_OBJECT_PUT;
+
+/**
+ * Test for {@link TwitterStreamer}. Tests Public Status streaming API https://dev.twitter.com/streaming/public.
+ */
+public class IgniteTwitterStreamerTest extends GridCommonAbstractTest {
+ /** Cache entries count. */
+ private static final int CACHE_ENTRY_COUNT = 100;
+
+ /** Mocked api in embedded server. */
+ private static final String MOCK_TWEET_PATH = "/tweet/mock";
+
+ /** Sample tweet. */
+ private static final String tweet = "{\"id\":647375831971590144,\"text\":\"sample tweet to test streamer\"}\n";
+
+ /** Constructor. */
+ public IgniteTwitterStreamerTest() {
+ super(true);
+ }
+
+ /**
+ * See <a href="http://wiremock.org/docs/junit-rule/">The JUnit 4.x Rule</a>.
+ */
+ @ClassRule
+ public static WireMockClassRule wireMockClsRule = new WireMockClassRule(WireMockConfiguration.DYNAMIC_PORT);
+
+ /** Embedded mock HTTP server's for Twitter API rule. */
+ @Rule
+ public WireMockClassRule wireMockRule = wireMockClsRule;
+
+ /** Embedded mock HTTP server for Twitter API. */
+ public final WireMockServer mockSrv = new WireMockServer(); //Starts server on 8080 port.
+
+ /** {@inheritDoc} */
+ @Override protected long getTestTimeout() {
+ return 10_000;
+ }
+
+ /** {@inheritDoc} */
+ @Override protected IgniteConfiguration getConfiguration(String igniteInstanceName) throws Exception {
+ return super.getConfiguration(igniteInstanceName).setIncludeEventTypes(EventType.EVTS_ALL);
+ }
+
+ /** */
+ private void init() {
+ grid().getOrCreateCache(defaultCacheConfiguration());
+
+ mockSrv.start();
+
+ stubFor(get(urlMatching("/1.1" + MOCK_TWEET_PATH + ".*")).willReturn(aResponse().
+ withHeader("Content-Type", "text/plain").withBody(tweet.length() + "\n" + tweet)));
+ }
+
+ /** */
+ private void cleanup() {
+ stopAllGrids();
+
+ mockSrv.stop();
+ }
+
+ /**
+ * @throws Exception Test exception.
+ */
+ @Test
+ public void testStatusesFilterEndpointOAuth1() throws Exception {
+ init();
+ try (IgniteDataStreamer<Long, String> dataStreamer = grid().dataStreamer(DEFAULT_CACHE_NAME)) {
+ TwitterStreamerImpl streamer = newStreamerInstance(dataStreamer);
+
+ Map<String, String> params = new HashMap<>();
+
+ params.put("track", "apache, twitter");
+ params.put("follow", "3004445758");// @ApacheIgnite id.
+
+ streamer.setApiParams(params);
+ streamer.setEndpointUrl(MOCK_TWEET_PATH);
+ streamer.setHosts(new HttpHosts("http://localhost:8080"));
+ streamer.setThreadsCount(8);
+
+ executeStreamer(streamer);
+ } finally {
+ cleanup();
+ }
+ }
+
+ /**
+ * @param streamer Twitter streamer.
+ * @throws InterruptedException Test exception.
+ * @throws TwitterException Test exception.
+ */
+ private void executeStreamer(TwitterStreamer streamer) throws InterruptedException, TwitterException {
+ // Checking streaming.
+
+ CacheListener lsnr = subscribeToPutEvents();
+
+ streamer.start();
+
+ try {
+ streamer.start();
+
+ fail("Successful start of already started Twitter Streamer");
+ }
+ catch (IgniteException ignored) {
+ // No-op.
+ }
+
+ CountDownLatch latch = lsnr.getLatch();
+
+ // Enough tweets was handled in 10 seconds. Limited by test's timeout.
+ latch.await();
+
+ unsubscribeToPutEvents(lsnr);
+
+ streamer.stop();
+
+ try {
+ streamer.stop();
+
+ fail("Successful stop of already stopped Twitter Streamer");
+ }
+ catch (IgniteException ignored) {
+ // No-op.
+ }
+
+ // Checking cache content after streaming finished.
+
+ Status status = TwitterObjectFactory.createStatus(tweet);
+
+ IgniteCache<Long, String> cache = grid().cache(DEFAULT_CACHE_NAME);
+
+ String cachedVal = cache.get(status.getId());
+
+ // Tweet successfully put to cache.
+ assertTrue(cachedVal != null && cachedVal.equals(status.getText()));
+
+ // Same tweets does not produce duplicate entries.
+ assertEquals(1, cache.size());
+ }
+
+ /**
+ * @return Cache listener.
+ */
+ private CacheListener subscribeToPutEvents() {
+ Ignite ignite = grid();
+
+ // Listen to cache PUT events and expect as many as messages as test data items.
+ CacheListener lsnr = new CacheListener();
+
+ ignite.events(ignite.cluster().forCacheNodes(DEFAULT_CACHE_NAME)).localListen(lsnr, EVT_CACHE_OBJECT_PUT);
+
+ return lsnr;
+ }
+
+ /**
+ * @param lsnr Cache listener.
+ */
+ private void unsubscribeToPutEvents(CacheListener lsnr) {
+ Ignite ignite = grid();
+
+ ignite.events(ignite.cluster().forCacheNodes(DEFAULT_CACHE_NAME)).stopLocalListen(lsnr, EVT_CACHE_OBJECT_PUT);
+ }
+
+ /**
+ * @param dataStreamer Ignite Data Streamer.
+ * @return Twitter Streamer.
+ */
+ private TwitterStreamerImpl newStreamerInstance(IgniteDataStreamer<Long, String> dataStreamer) {
+ OAuthSettings oAuthSettings = new OAuthSettings("<dummy>", "<dummy>", "<dummy>", "<dummy>");
+
+ TwitterStreamerImpl streamer = new TwitterStreamerImpl(oAuthSettings);
+
+ streamer.setIgnite(grid());
+ streamer.setStreamer(dataStreamer);
+
+ dataStreamer.allowOverwrite(true);
+ dataStreamer.autoFlushFrequency(10);
+
+ return streamer;
+ }
+
+ /**
+ * Listener.
+ */
+ private static 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;
+ }
+ }
+}
diff --git a/modules/twitter-ext/src/test/java/org/apache/ignite/stream/twitter/IgniteTwitterStreamerTestSuite.java b/modules/twitter-ext/src/test/java/org/apache/ignite/stream/twitter/IgniteTwitterStreamerTestSuite.java
new file mode 100644
index 0000000..5234af7
--- /dev/null
+++ b/modules/twitter-ext/src/test/java/org/apache/ignite/stream/twitter/IgniteTwitterStreamerTestSuite.java
@@ -0,0 +1,31 @@
+/*
+ * 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.twitter;
+
+import org.junit.runner.RunWith;
+import org.junit.runners.Suite;
+
+/**
+ * Twitter streamer tests.
+ */
+@RunWith(Suite.class)
+@Suite.SuiteClasses({
+ IgniteTwitterStreamerTest.class
+})
+public class IgniteTwitterStreamerTestSuite {
+}
diff --git a/modules/twitter-ext/src/test/java/org/apache/ignite/stream/twitter/TwitterStreamerImpl.java b/modules/twitter-ext/src/test/java/org/apache/ignite/stream/twitter/TwitterStreamerImpl.java
new file mode 100644
index 0000000..3c047e0
--- /dev/null
+++ b/modules/twitter-ext/src/test/java/org/apache/ignite/stream/twitter/TwitterStreamerImpl.java
@@ -0,0 +1,79 @@
+/*
+ * 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.twitter;
+
+import com.twitter.hbc.core.Client;
+import com.twitter.hbc.core.HttpHosts;
+import com.twitter.hbc.core.endpoint.StreamingEndpoint;
+import java.util.Map;
+import java.util.concurrent.BlockingQueue;
+import org.apache.ignite.internal.util.typedef.internal.U;
+import org.apache.ignite.lang.IgniteBiTuple;
+import org.apache.ignite.stream.StreamSingleTupleExtractor;
+import twitter4j.Status;
+import twitter4j.TwitterException;
+import twitter4j.TwitterObjectFactory;
+
+/**
+ * Long, String (With Mocked server support) implementation of TwitterStreamer.
+ */
+public class TwitterStreamerImpl extends TwitterStreamer<Long, String> {
+ /** Mocked server support. */
+ HttpHosts hosts;
+
+ /**
+ * @param oAuthSettings OAuth Settings
+ */
+ public TwitterStreamerImpl(OAuthSettings oAuthSettings) {
+ super(oAuthSettings);
+
+ setSingleTupleExtractor(new TwitterStreamSingleTupleExtractorImpl());
+ }
+
+ /**
+ * @param hosts hosts.
+ */
+ public void setHosts(HttpHosts hosts) {
+ this.hosts = hosts;
+ }
+
+ /** {@inheritDoc} */
+ @Override protected Client buildClient(BlockingQueue<String> tweetQueue, HttpHosts hosts,
+ StreamingEndpoint endpoint) {
+ return super.buildClient(tweetQueue, this.hosts, endpoint);
+ }
+
+ /**
+ * Long, String Tweet Single Tuple Extractor.
+ */
+ class TwitterStreamSingleTupleExtractorImpl implements StreamSingleTupleExtractor<String, Long, String> {
+ @Override public Map.Entry<Long, String> extract(String tweet) {
+ try {
+ Status status = TwitterObjectFactory.createStatus(tweet);
+
+ return new IgniteBiTuple<>(status.getId(), status.getText());
+ }
+ catch (TwitterException e) {
+ U.error(log, e);
+
+ return null;
+ }
+ }
+ }
+
+}
diff --git a/modules/twitter-ext/src/test/java/org/apache/ignite/stream/twitter/package-info.java b/modules/twitter-ext/src/test/java/org/apache/ignite/stream/twitter/package-info.java
new file mode 100644
index 0000000..d419c28
--- /dev/null
+++ b/modules/twitter-ext/src/test/java/org/apache/ignite/stream/twitter/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 Twitter Streamer.
+ */
+
+package org.apache.ignite.stream.twitter;
diff --git a/pom.xml b/pom.xml
index 8d0da31..1f212d0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -48,6 +48,7 @@
<module>modules/spring-boot-autoconfigure-ext</module>
<module>modules/spring-boot-thin-client-autoconfigure-ext</module>
<module>modules/zeromq-ext</module>
+ <module>modules/twitter-ext</module>
</modules>
<profiles>
