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<div class="subTitle">org.apache.storm.task</div>
<h2 title="Class WorkerTopologyContext" class="title">Class WorkerTopologyContext</h2>
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<li><a href="../../../../org/apache/storm/task/GeneralTopologyContext.html" title="class in org.apache.storm.task">org.apache.storm.task.GeneralTopologyContext</a></li>
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<li>org.apache.storm.task.WorkerTopologyContext</li>
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<pre>public class <span class="typeNameLabel">WorkerTopologyContext</span>
extends <a href="../../../../org/apache/storm/task/GeneralTopologyContext.html" title="class in org.apache.storm.task">GeneralTopologyContext</a></pre>
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<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/task/WorkerTopologyContext.html#SHARED_EXECUTOR">SHARED_EXECUTOR</a></span></code>&nbsp;</td>
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<h3>Fields inherited from class&nbsp;org.apache.storm.task.<a href="../../../../org/apache/storm/task/GeneralTopologyContext.html" title="class in org.apache.storm.task">GeneralTopologyContext</a></h3>
<code><a href="../../../../org/apache/storm/task/GeneralTopologyContext.html#doSanityCheck">doSanityCheck</a>, <a href="../../../../org/apache/storm/task/GeneralTopologyContext.html#topoConf">topoConf</a></code></li>
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<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<tr id="i0" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/task/WorkerTopologyContext.html#getAssignmentId--">getAssignmentId</a></span>()</code>&nbsp;</td>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
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<div class="block">Gets the location of the external resources for this worker on the local filesystem.</div>
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<tr id="i2" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicReference.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicReference</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&gt;</code></td>
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<div class="block">Get a map from nodeId to hostname.</div>
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<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/task/WorkerTopologyContext.html#getPIDDir--">getPIDDir</a></span>()</code>
<div class="block">If this task spawns any subprocesses, those subprocesses must immediately write their PID to this directory on the local filesystem to ensure that Storm properly destroys that process when the worker is shutdown.</div>
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<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td>
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<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ExecutorService.html?is-external=true" title="class or interface in java.util.concurrent">ExecutorService</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/task/WorkerTopologyContext.html#getSharedExecutor--">getSharedExecutor</a></span>()</code>&nbsp;</td>
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<tr id="i6" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicReference.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicReference</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,<a href="../../../../org/apache/storm/generated/NodeInfo.html" title="class in org.apache.storm.generated">NodeInfo</a>&gt;&gt;</code></td>
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<div class="block">Get a map from task Id to NodePort.</div>
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<tr id="i7" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a></code></td>
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<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../constant-values.html#org.apache.storm.task.WorkerTopologyContext.SHARED_EXECUTOR">Constant Field Values</a></dd>
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<h4>WorkerTopologyContext</h4>
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<h4>getThisWorkerTasks</h4>
<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;getThisWorkerTasks()</pre>
<div class="block"><p>Gets all the task ids that are running in this worker process (including the task for this task).</p></div>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&nbsp;getThisWorkerPort()</pre>
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<h4>getTaskToNodePort</h4>
<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicReference.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicReference</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,<a href="../../../../org/apache/storm/generated/NodeInfo.html" title="class in org.apache.storm.generated">NodeInfo</a>&gt;&gt;&nbsp;getTaskToNodePort()</pre>
<div class="block"><p>Get a map from task Id to NodePort.</p></div>
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<dt><span class="returnLabel">Returns:</span></dt>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicReference.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicReference</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&gt;&nbsp;getNodeToHost()</pre>
<div class="block"><p>Get a map from nodeId to hostname.</p></div>
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<dt><span class="returnLabel">Returns:</span></dt>
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<div class="block"><p>Gets the location of the external resources for this worker on the local filesystem. These external resources typically include bolts implemented in other languages, such as Ruby or Python.</p></div>
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<div class="block"><p>If this task spawns any subprocesses, those subprocesses must immediately write their PID to this directory on the local filesystem to ensure that Storm properly destroys that process when the worker is shutdown.</p></div>
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