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         <a class='edit-link' href="/_docs/rocketmq/rocketmq-streamer.adoc" target="_blank">Edit</a>

             <h1>RocketMQ Streamer</h1>

         <div class="paragraph">
 <p>This streamer module provides streaming from <a href="https://github.com/apache/incubator-rocketmq" target="_blank" rel="noopener">Apache RocketMQ</a>
 to Ignite.</p>
 </div>
 <div class="paragraph">
 <p>To use Ignite RocketMQ Streamer module</p>
 </div>
 <div class="olist arabic">
 <ol class="arabic">
 <li>
 <p>Import it to your Maven project. If you are using Maven to manage dependencies of your project, you can add an Ignite
 RocketMQ module dependency like this (replace <code>${ignite-rocketmq-ext.version}</code> with actual Ignite RocketMQ Extension version you are interested in):</p>
 <code-tabs><code-tab data-tab='pom.xml'><div class="listingblock">
 <div class="content">
 <pre class="rouge highlight"><code data-lang="xml"><span class="nt">&lt;project</span> <span class="na">xmlns=</span><span class="s">"http://maven.apache.org/POM/4.0.0"</span>
     <span class="na">xmlns:xsi=</span><span class="s">"http://www.w3.org/2001/XMLSchema-instance"</span>
     <span class="na">xsi:schemaLocation=</span><span class="s">"http://maven.apache.org/POM/4.0.0
                         http://maven.apache.org/xsd/maven-4.0.0.xsd"</span><span class="nt">&gt;</span>
     ...
     <span class="nt">&lt;dependencies&gt;</span>
         ...
         <span class="nt">&lt;dependency&gt;</span>
             <span class="nt">&lt;groupId&gt;</span>org.apache.ignite<span class="nt">&lt;/groupId&gt;</span>
             <span class="nt">&lt;artifactId&gt;</span>ignite-rocketmq-ext<span class="nt">&lt;/artifactId&gt;</span>
             <span class="nt">&lt;version&gt;</span>${ignite-rocketmq-ext.version}<span class="nt">&lt;/version&gt;</span>
         <span class="nt">&lt;/dependency&gt;</span>
         ...
     <span class="nt">&lt;/dependencies&gt;</span>
     ...
 <span class="nt">&lt;/project&gt;</span></code></pre>
 </div>
 </div></code-tab></code-tabs>
 </li>
 <li>
 <p>Implement either <code>StreamSingleTupleExtractor</code> or <code>StreamMultipleTupleExtractor</code> for the streamer (shown
 as <code>MyTupleExtractor</code> in the code sample below). For a simple implementation, refer to <code>RocketMQStreamerTest.java</code>.</p>
 </li>
 <li>
 <p>Initialize and start the streamer</p>
 <code-tabs><code-tab data-tab='Java'><div class="listingblock">
 <div class="content">
 <pre class="rouge highlight"><code data-lang="java"><span class="nc">IgniteDataStreamer</span><span class="o">&lt;</span><span class="nc">String</span><span class="o">,</span> <span class="kt">byte</span><span class="o">[]&gt;</span> <span class="n">dataStreamer</span> <span class="o">=</span> <span class="n">ignite</span><span class="o">.</span><span class="na">dataStreamer</span><span class="o">(</span><span class="no">MY_CACHE</span><span class="o">));</span>

 <span class="n">dataStreamer</span><span class="o">.</span><span class="na">allowOverwrite</span><span class="o">(</span><span class="kc">true</span><span class="o">);</span>
 <span class="n">dataStreamer</span><span class="o">.</span><span class="na">autoFlushFrequency</span><span class="o">(</span><span class="mi">10</span><span class="o">);</span>

 <span class="n">streamer</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">RocketMQStreamer</span><span class="o">&lt;&gt;();</span>

 <span class="c1">//configure.</span>
 <span class="n">streamer</span><span class="o">.</span><span class="na">setIgnite</span><span class="o">(</span><span class="n">ignite</span><span class="o">);</span>
 <span class="n">streamer</span><span class="o">.</span><span class="na">setStreamer</span><span class="o">(</span><span class="n">dataStreamer</span><span class="o">);</span>
 <span class="n">streamer</span><span class="o">.</span><span class="na">setNameSrvAddr</span><span class="o">(</span><span class="no">NAMESERVER_IP_PORT</span><span class="o">);</span>
 <span class="n">streamer</span><span class="o">.</span><span class="na">setConsumerGrp</span><span class="o">(</span><span class="no">CONSUMER_GRP</span><span class="o">);</span>
 <span class="n">streamer</span><span class="o">.</span><span class="na">setTopic</span><span class="o">(</span><span class="no">TOPIC_NAME</span><span class="o">);</span>
 <span class="n">streamer</span><span class="o">.</span><span class="na">setMultipleTupleExtractor</span><span class="o">(</span><span class="k">new</span> <span class="nc">MyTupleExtractor</span><span class="o">());</span>

 <span class="n">streamer</span><span class="o">.</span><span class="na">start</span><span class="o">();</span>

 <span class="o">...</span>

 <span class="c1">// stop on shutdown</span>
 <span class="n">streamer</span><span class="o">.</span><span class="na">stop</span><span class="o">();</span>

 <span class="n">dataStreamer</span><span class="o">.</span><span class="na">close</span><span class="o">();</span></code></pre>
 </div>
 </div></code-tab></code-tabs>
 </li>
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 <div class="paragraph">
 <p>Refer to the Javadocs for more info on the available options.</p>
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	<article data-swiftype-index='true'>
	<a class='edit-link' href="/_docs/rocketmq/rocketmq-streamer.adoc" target="_blank">Edit</a>

	<h1>RocketMQ Streamer</h1>

	<div class="paragraph">
	<p>This streamer module provides streaming from <a href="https://github.com/apache/incubator-rocketmq" target="_blank" rel="noopener">Apache RocketMQ</a>
	to Ignite.</p>
	</div>
	<div class="paragraph">
	<p>To use Ignite RocketMQ Streamer module</p>
	</div>
	<div class="olist arabic">
	<ol class="arabic">
	<li>
	<p>Import it to your Maven project. If you are using Maven to manage dependencies of your project, you can add an Ignite
	RocketMQ module dependency like this (replace <code>${ignite-rocketmq-ext.version}</code> with actual Ignite RocketMQ Extension version you are interested in):</p>
	<code-tabs><code-tab data-tab='pom.xml'><div class="listingblock">
	<div class="content">
	<pre class="rouge highlight"><code data-lang="xml"><span class="nt"><project</span> <span class="na">xmlns=</span><span class="s">"http://maven.apache.org/POM/4.0.0"</span>
	<span class="na">xmlns:xsi=</span><span class="s">"http://www.w3.org/2001/XMLSchema-instance"</span>
	<span class="na">xsi:schemaLocation=</span><span class="s">"http://maven.apache.org/POM/4.0.0
	http://maven.apache.org/xsd/maven-4.0.0.xsd"</span><span class="nt">></span>
	...
	<span class="nt"><dependencies></span>
	...
	<span class="nt"><dependency></span>
	<span class="nt"><groupId></span>org.apache.ignite<span class="nt"></groupId></span>
	<span class="nt"><artifactId></span>ignite-rocketmq-ext<span class="nt"></artifactId></span>
	<span class="nt"><version></span>${ignite-rocketmq-ext.version}<span class="nt"></version></span>
	<span class="nt"></dependency></span>
	...
	<span class="nt"></dependencies></span>
	...
	<span class="nt"></project></span></code></pre>
	</div>
	</div></code-tab></code-tabs>
	</li>
	<li>
	<p>Implement either <code>StreamSingleTupleExtractor</code> or <code>StreamMultipleTupleExtractor</code> for the streamer (shown
	as <code>MyTupleExtractor</code> in the code sample below). For a simple implementation, refer to <code>RocketMQStreamerTest.java</code>.</p>
	</li>
	<li>
	<p>Initialize and start the streamer</p>
	<code-tabs><code-tab data-tab='Java'><div class="listingblock">
	<div class="content">
	<pre class="rouge highlight"><code data-lang="java"><span class="nc">IgniteDataStreamer</span><span class="o"><</span><span class="nc">String</span><span class="o">,</span> <span class="kt">byte</span><span class="o">[]></span> <span class="n">dataStreamer</span> <span class="o">=</span> <span class="n">ignite</span><span class="o">.</span><span class="na">dataStreamer</span><span class="o">(</span><span class="no">MY_CACHE</span><span class="o">));</span>

	<span class="n">dataStreamer</span><span class="o">.</span><span class="na">allowOverwrite</span><span class="o">(</span><span class="kc">true</span><span class="o">);</span>
	<span class="n">dataStreamer</span><span class="o">.</span><span class="na">autoFlushFrequency</span><span class="o">(</span><span class="mi">10</span><span class="o">);</span>

	<span class="n">streamer</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">RocketMQStreamer</span><span class="o"><>();</span>

	<span class="c1">//configure.</span>
	<span class="n">streamer</span><span class="o">.</span><span class="na">setIgnite</span><span class="o">(</span><span class="n">ignite</span><span class="o">);</span>
	<span class="n">streamer</span><span class="o">.</span><span class="na">setStreamer</span><span class="o">(</span><span class="n">dataStreamer</span><span class="o">);</span>
	<span class="n">streamer</span><span class="o">.</span><span class="na">setNameSrvAddr</span><span class="o">(</span><span class="no">NAMESERVER_IP_PORT</span><span class="o">);</span>
	<span class="n">streamer</span><span class="o">.</span><span class="na">setConsumerGrp</span><span class="o">(</span><span class="no">CONSUMER_GRP</span><span class="o">);</span>
	<span class="n">streamer</span><span class="o">.</span><span class="na">setTopic</span><span class="o">(</span><span class="no">TOPIC_NAME</span><span class="o">);</span>
	<span class="n">streamer</span><span class="o">.</span><span class="na">setMultipleTupleExtractor</span><span class="o">(</span><span class="k">new</span> <span class="nc">MyTupleExtractor</span><span class="o">());</span>

	<span class="n">streamer</span><span class="o">.</span><span class="na">start</span><span class="o">();</span>

	<span class="o">...</span>

	<span class="c1">// stop on shutdown</span>
	<span class="n">streamer</span><span class="o">.</span><span class="na">stop</span><span class="o">();</span>

	<span class="n">dataStreamer</span><span class="o">.</span><span class="na">close</span><span class="o">();</span></code></pre>
	</div>
	</div></code-tab></code-tabs>
	</li>
	</ol>
	</div>
	<div class="paragraph">
	<p>Refer to the Javadocs for more info on the available options.</p>
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