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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">backtype.storm.task</a></div> |
| <h2 title="Class WorkerTopologyContext" class="title">Class WorkerTopologyContext</h2> |
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| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
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| <li><a href="GeneralTopologyContext.html" title="class in backtype.storm.task">backtype.storm.task.GeneralTopologyContext</a></li> |
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| <li>backtype.storm.task.WorkerTopologyContext</li> |
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| <dd><code><a href="TopologyContext.html" title="class in backtype.storm.task">TopologyContext</a></code></dd> |
| </dl> |
| <hr> |
| <pre>public class <span class="typeNameLabel">WorkerTopologyContext</span> |
| extends <a href="GeneralTopologyContext.html" title="class in backtype.storm.task">GeneralTopologyContext</a></pre> |
| </li> |
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| <tr> |
| <th class="colFirst" scope="col">Constructor</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(backtype.storm.generated.StormTopology,java.util.Map,java.util.Map,java.util.Map,java.util.Map,java.lang.String,java.lang.String,java.lang.String,java.lang.Integer,java.util.List,java.util.Map,java.util.Map)">WorkerTopologyContext</a></span>​(<a href="../generated/StormTopology.html" title="class in backtype.storm.generated">StormTopology</a> topology, |
| java.util.Map stormConf, |
| java.util.Map<java.lang.Integer,​java.lang.String> taskToComponent, |
| java.util.Map<java.lang.String,​java.util.List<java.lang.Integer>> componentToSortedTasks, |
| java.util.Map<java.lang.String,​java.util.Map<java.lang.String,​<a href="../tuple/Fields.html" title="class in backtype.storm.tuple">Fields</a>>> componentToStreamToFields, |
| java.lang.String stormId, |
| java.lang.String codeDir, |
| java.lang.String pidDir, |
| java.lang.Integer workerPort, |
| java.util.List<java.lang.Integer> workerTasks, |
| java.util.Map<java.lang.String,​java.lang.Object> defaultResources, |
| java.util.Map<java.lang.String,​java.lang.Object> userResources)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.heron.api.topology.TopologyContext)">WorkerTopologyContext</a></span>​(<a href="../../../org/apache/heron/api/topology/TopologyContext.html" title="interface in org.apache.heron.api.topology">TopologyContext</a> newDelegate)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </table> |
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| </ul> |
| </section> |
| <!-- ========== METHOD SUMMARY =========== --> |
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| <table class="memberSummary"> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Method</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getCodeDir()">getCodeDir</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Gets the location of the external resources for this worker on the |
| local filesystem.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getPIDDir()">getPIDDir</a></span>()</code></th> |
| <td class="colLast"> |
| <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> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>java.lang.Object</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getResource(java.lang.String)">getResource</a></span>​(java.lang.String name)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>java.util.concurrent.ExecutorService</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getSharedExecutor()">getSharedExecutor</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>java.lang.Integer</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getThisWorkerPort()">getThisWorkerPort</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Return the port that the worker is running on.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>java.util.List<java.lang.Integer></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getThisWorkerTasks()">getThisWorkerTasks</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Gets all the task ids that are running in this worker process |
| (including the task for this task).</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a id="methods.inherited.from.class.backtype.storm.task.GeneralTopologyContext"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class backtype.storm.task.<a href="GeneralTopologyContext.html" title="class in backtype.storm.task">GeneralTopologyContext</a></h3> |
| <code><a href="GeneralTopologyContext.html#getComponentId(int)">getComponentId</a>, <a href="GeneralTopologyContext.html#getComponentIds()">getComponentIds</a>, <a href="GeneralTopologyContext.html#getComponentOutputFields(java.lang.String,java.lang.String)">getComponentOutputFields</a>, <a href="GeneralTopologyContext.html#getComponentStreams(java.lang.String)">getComponentStreams</a>, <a href="GeneralTopologyContext.html#getComponentTasks(java.lang.String)">getComponentTasks</a>, <a href="GeneralTopologyContext.html#getStormId()">getStormId</a>, <a href="GeneralTopologyContext.html#getTaskToComponent()">getTaskToComponent</a>, <a href="GeneralTopologyContext.html#toJSONString()">toJSONString</a></code></li> |
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| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
| </ul> |
| </li> |
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| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
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| <li class="blockList"><a id="constructor.detail"> |
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| </a> |
| <h3>Constructor Detail</h3> |
| <a id="<init>(backtype.storm.generated.StormTopology,java.util.Map,java.util.Map,java.util.Map,java.util.Map,java.lang.String,java.lang.String,java.lang.String,java.lang.Integer,java.util.List,java.util.Map,java.util.Map)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>WorkerTopologyContext</h4> |
| <pre>public WorkerTopologyContext​(<a href="../generated/StormTopology.html" title="class in backtype.storm.generated">StormTopology</a> topology, |
| java.util.Map stormConf, |
| java.util.Map<java.lang.Integer,​java.lang.String> taskToComponent, |
| java.util.Map<java.lang.String,​java.util.List<java.lang.Integer>> componentToSortedTasks, |
| java.util.Map<java.lang.String,​java.util.Map<java.lang.String,​<a href="../tuple/Fields.html" title="class in backtype.storm.tuple">Fields</a>>> componentToStreamToFields, |
| java.lang.String stormId, |
| java.lang.String codeDir, |
| java.lang.String pidDir, |
| java.lang.Integer workerPort, |
| java.util.List<java.lang.Integer> workerTasks, |
| java.util.Map<java.lang.String,​java.lang.Object> defaultResources, |
| java.util.Map<java.lang.String,​java.lang.Object> userResources)</pre> |
| </li> |
| </ul> |
| <a id="<init>(org.apache.heron.api.topology.TopologyContext)"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>WorkerTopologyContext</h4> |
| <pre>public WorkerTopologyContext​(<a href="../../../org/apache/heron/api/topology/TopologyContext.html" title="interface in org.apache.heron.api.topology">TopologyContext</a> newDelegate)</pre> |
| </li> |
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| </section> |
| <!-- ============ METHOD DETAIL ========== --> |
| <section> |
| <ul class="blockList"> |
| <li class="blockList"><a id="method.detail"> |
| <!-- --> |
| </a> |
| <h3>Method Detail</h3> |
| <a id="getThisWorkerTasks()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getThisWorkerTasks</h4> |
| <pre class="methodSignature">public java.util.List<java.lang.Integer> getThisWorkerTasks()</pre> |
| <div class="block">Gets all the task ids that are running in this worker process |
| (including the task for this task). |
| In Heron parlance, since every instance is running as a seperate process |
| this will just return the current instance's taskId</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the worker task</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getThisWorkerPort()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getThisWorkerPort</h4> |
| <pre class="methodSignature">public java.lang.Integer getThisWorkerPort()</pre> |
| <div class="block">Return the port that the worker is running on. |
| This was typically done to differentiate workers running |
| on the same machine. |
| In Heron parlance, we just return the taskId since that |
| should be unique</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the worker port</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getCodeDir()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getCodeDir</h4> |
| <pre class="methodSignature">public java.lang.String getCodeDir()</pre> |
| <div class="block">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.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the location of the external resources</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getPIDDir()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getPIDDir</h4> |
| <pre class="methodSignature">public java.lang.String getPIDDir()</pre> |
| <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> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the PID directory</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getResource(java.lang.String)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getResource</h4> |
| <pre class="methodSignature">public java.lang.Object getResource​(java.lang.String name)</pre> |
| </li> |
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| <!-- --> |
| </a> |
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| <h4>getSharedExecutor</h4> |
| <pre class="methodSignature">public java.util.concurrent.ExecutorService getSharedExecutor()</pre> |
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