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Posted to commits@storm.apache.org by ka...@apache.org on 2018/06/09 13:42:54 UTC
[46/51] [partial] storm-site git commit: Update latest 1.x-branch
version to 1.2.2
http://git-wip-us.apache.org/repos/asf/storm-site/blob/6e122a12/content/releases/1.2.1/Contributing-to-Storm.html
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-<p>Contributions to the Storm codebase should be sent as <a href="https://github.com/apache/storm">GitHub</a> pull requests. If there's any problems to the pull request we can iterate on it using GitHub's commenting features.</p>
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http://git-wip-us.apache.org/repos/asf/storm-site/blob/6e122a12/content/releases/1.2.1/Creating-a-new-Storm-project.html
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-<div class="documentation-content"><p>This page outlines how to set up a Storm project for development. The steps are:</p>
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-<li>Add Storm jars to classpath</li>
-<li>If using multilang, add multilang dir to classpath</li>
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-<p>Follow along to see how to set up the <a href="http://github.com/apache/storm/blob/v1.2.1/examples/storm-starter">storm-starter</a> project in Eclipse.</p>
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-<h3 id="add-storm-jars-to-classpath">Add Storm jars to classpath</h3>
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-<p>You'll need the Storm jars on your classpath to develop Storm topologies. Using <a href="Maven.html">Maven</a> is highly recommended. <a href="http://github.com/apache/storm/blob/v1.2.1/examples/storm-starter/pom.xml">Here's an example</a> of how to setup your pom.xml for a Storm project. If you don't want to use Maven, you can include the jars from the Storm release on your classpath.</p>
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-<p>To set up the classpath in Eclipse, create a new Java project, include <code>src/jvm/</code> as a source path, and make sure all the jars in <code>lib/</code> and <code>lib/dev/</code> are in the <code>Referenced Libraries</code> section of the project.</p>
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-<p>If you implement spouts or bolts in languages other than Java, then those implementations should be under the <code>multilang/resources/</code> directory of the project. For Storm to find these files in local mode, the <code>resources/</code> dir needs to be on the classpath. You can do this in Eclipse by adding <code>multilang/</code> as a source folder. You may also need to add multilang/resources as a source directory.</p>
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-<p>For more information on writing topologies in other languages, see <a href="Using-non-JVM-languages-with-Storm.html">Using non-JVM languages with Storm</a>.</p>
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-<p>To test that everything is working in Eclipse, you should now be able to <code>Run</code> the <code>WordCountTopology.java</code> file. You will see messages being emitted at the console for 10 seconds.</p>
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- <li><a href="http://www.meetup.com/Apache-Storm-Kafka-Users/">Apache Storm & Kafka Users</a> <span class="small">(Seattle, WA)</span></li>
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- <li><a href="http://www.meetup.com/New-York-City-Storm-User-Group/">NYC Storm User Group</a> <span class="small">(New York, NY)</span></li>
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- <li><a href="http://www.meetup.com/Bay-Area-Stream-Processing">Bay Area Stream Processing</a> <span class="small">(Emeryville, CA)</span></li>
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- <li><a href="http://www.meetup.com/Boston-Storm-Users/">Boston Realtime Data</a> <span class="small">(Boston, MA)</span></li>
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- <li><a href="http://www.meetup.com/storm-london">London Storm User Group</a> <span class="small">(London, UK)</span></li>
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- <!-- <li><a href="http://www.meetup.com/Apache-Storm-Kafka-Users/">Seatle, WA</a> <span class="small">(27 Jun 2015)</span></li> -->
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-<div class="documentation-content"><p>The right place to start to learn how to make a non-JVM DSL for Storm is <a href="http://github.com/apache/storm/blob/v1.2.1/storm-core/src/storm.thrift">storm-core/src/storm.thrift</a>. Since Storm topologies are just Thrift structures, and Nimbus is a Thrift daemon, you can create and submit topologies in any language.</p>
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-<p>When you create the Thrift structs for spouts and bolts, the code for the spout or bolt is specified in the ComponentObject struct:</p>
-<div class="highlight"><pre><code class="language-" data-lang="">union ComponentObject {
- 1: binary serialized_java;
- 2: ShellComponent shell;
- 3: JavaObject java_object;
-}
-</code></pre></div>
-<p>For a Python DSL, you would want to make use of "2" and "3". ShellComponent lets you specify a script to run that component (e.g., your python code). And JavaObject lets you specify native java spouts and bolts for the component (and Storm will use reflection to create that spout or bolt).</p>
-
-<p>There's a "storm shell" command that will help with submitting a topology. Its usage is like this:</p>
-<div class="highlight"><pre><code class="language-" data-lang="">storm shell resources/ python topology.py arg1 arg2
-</code></pre></div>
-<p>storm shell will then package resources/ into a jar, upload the jar to Nimbus, and call your topology.py script like this:</p>
-<div class="highlight"><pre><code class="language-" data-lang="">python topology.py arg1 arg2 {nimbus-host} {nimbus-port} {uploaded-jar-location}
-</code></pre></div>
-<p>Then you can connect to Nimbus using the Thrift API and submit the topology, passing {uploaded-jar-location} into the submitTopology method. For reference, here's the submitTopology definition:</p>
-<div class="highlight"><pre><code class="language-java" data-lang="java"><span class="kt">void</span> <span class="nf">submitTopology</span><span class="o">(</span><span class="mi">1</span><span class="o">:</span> <span class="n">string</span> <span class="n">name</span><span class="o">,</span> <span class="mi">2</span><span class="o">:</span> <span class="n">string</span> <span class="n">uploadedJarLocation</span><span class="o">,</span> <span class="mi">3</span><span class="o">:</span> <span class="n">string</span> <span class="n">jsonConf</span><span class="o">,</span> <span class="mi">4</span><span class="o">:</span> <span class="n">StormTopology</span> <span class="n">topology</span><span class="o">)</span> <span class="kd">throws</span> <span class="o">(</span><span class="mi">1</span><span class="o">:</span> <span class="n">AlreadyAliveException</span> <span class="n">e</span><span class="o">,</span> <span class="mi">2</span><span class="o">:</span> <span class="n">InvalidTop
ologyException</span> <span class="n">ite</span><span class="o">);</span>
-</code></pre></div>
-<p>Finally, one of the key things to do in a non-JVM DSL is make it easy to define the entire topology in one file (the bolts, spouts, and the definition of the topology).</p>
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