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| <p>A library for reading social data from <a href="http://twitter.com/">twitter</a> using Spark Streaming.</p> |
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| <h2 id="linking">Linking</h2> |
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| <p>Using SBT:</p> |
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| <div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>libraryDependencies += "org.apache.bahir" %% "spark-streaming-twitter" % "2.3.1" |
| </code></pre></div></div> |
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| <p>Using Maven:</p> |
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| <div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code><dependency> |
| <groupId>org.apache.bahir</groupId> |
| <artifactId>spark-streaming-twitter_2.11</artifactId> |
| <version>2.3.1</version> |
| </dependency> |
| </code></pre></div></div> |
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| <p>This library can also be added to Spark jobs launched through <code class="language-plaintext highlighter-rouge">spark-shell</code> or <code class="language-plaintext highlighter-rouge">spark-submit</code> by using the <code class="language-plaintext highlighter-rouge">--packages</code> command line option. |
| For example, to include it when starting the spark shell:</p> |
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| <div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>$ bin/spark-shell --packages org.apache.bahir:spark-streaming-twitter_2.11:2.3.1 |
| </code></pre></div></div> |
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| <p>Unlike using <code class="language-plaintext highlighter-rouge">--jars</code>, using <code class="language-plaintext highlighter-rouge">--packages</code> ensures that this library and its dependencies will be added to the classpath. |
| The <code class="language-plaintext highlighter-rouge">--packages</code> argument can also be used with <code class="language-plaintext highlighter-rouge">bin/spark-submit</code>.</p> |
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| <p>This library is cross-published for Scala 2.10 and Scala 2.11, so users should replace the proper Scala version (2.10 or 2.11) in the commands listed above.</p> |
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| <h2 id="examples">Examples</h2> |
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| <p><code class="language-plaintext highlighter-rouge">TwitterUtils</code> uses Twitter4j to get the public stream of tweets using <a href="https://dev.twitter.com/docs/streaming-apis">Twitter’s Streaming API</a>. Authentication information |
| can be provided by any of the <a href="http://twitter4j.org/en/configuration.html">methods</a> supported by Twitter4J library. You can import the <code class="language-plaintext highlighter-rouge">TwitterUtils</code> class and create a DStream with <code class="language-plaintext highlighter-rouge">TwitterUtils.createStream</code> as shown below.</p> |
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| <h3 id="scala-api">Scala API</h3> |
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| <div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>import org.apache.spark.streaming.twitter._ |
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| TwitterUtils.createStream(ssc, None) |
| </code></pre></div></div> |
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| <h3 id="java-api">Java API</h3> |
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| <div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>import org.apache.spark.streaming.twitter.*; |
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| TwitterUtils.createStream(jssc); |
| </code></pre></div></div> |
| |
| <p>You can also either get the public stream, or get the filtered stream based on keywords. |
| See end-to-end examples at <a href="https://github.com/apache/bahir/tree/master/streaming-twitter/examples">Twitter Examples</a></p> |
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