src/site/resources/apidocs-0.14.0/org/apache/twill/internal/BasicTwillContext.html - twill - Git at Google

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 <h2 title="Class BasicTwillContext" class="title">Class BasicTwillContext</h2>
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 <dt>All Implemented Interfaces:</dt>
 <dd><a href="../../../../org/apache/twill/api/ServiceAnnouncer.html" title="interface in org.apache.twill.api">ServiceAnnouncer</a>, <a href="../../../../org/apache/twill/api/TwillContext.html" title="interface in org.apache.twill.api">TwillContext</a>, <a href="../../../../org/apache/twill/discovery/DiscoveryServiceClient.html" title="interface in org.apache.twill.discovery">DiscoveryServiceClient</a></dd>
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 <pre>public final class <span class="typeNameLabel">BasicTwillContext</span>
 extends <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>
 implements <a href="../../../../org/apache/twill/api/TwillContext.html" title="interface in org.apache.twill.api">TwillContext</a></pre>
 <div class="block">Implementation of <a href="../../../../org/apache/twill/api/TwillContext.html" title="interface in org.apache.twill.api"><code>TwillContext</code></a> that provides the basic runtime information of a <a href="../../../../org/apache/twill/api/TwillRunnable.html" title="interface in org.apache.twill.api"><code>TwillRunnable</code></a>.</div>
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 <th class="colOne" scope="col">Constructor and Description</th>
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 <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/twill/internal/BasicTwillContext.html#BasicTwillContext-org.apache.twill.api.RunId-org.apache.twill.api.RunId-java.net.InetAddress-java.lang.String:A-java.lang.String:A-org.apache.twill.api.TwillRunnableSpecification-int-org.apache.twill.discovery.DiscoveryService-org.apache.twill.discovery.DiscoveryServiceClient-org.apache.twill.zookeeper.ZKClient-int-int-int-">BasicTwillContext</a></span>(<a href="../../../../org/apache/twill/api/RunId.html" title="interface in org.apache.twill.api">RunId</a>&nbsp;runId,
                  <a href="../../../../org/apache/twill/api/RunId.html" title="interface in org.apache.twill.api">RunId</a>&nbsp;appRunId,
                  <a href="https://docs.oracle.com/javase/8/docs/api/java/net/InetAddress.html?is-external=true" title="class or interface in java.net">InetAddress</a>&nbsp;host,
                  <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>[]&nbsp;args,
                  <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>[]&nbsp;appArgs,
                  <a href="../../../../org/apache/twill/api/TwillRunnableSpecification.html" title="interface in org.apache.twill.api">TwillRunnableSpecification</a>&nbsp;spec,
                  int&nbsp;instanceId,
                  <a href="../../../../org/apache/twill/discovery/DiscoveryService.html" title="interface in org.apache.twill.discovery">DiscoveryService</a>&nbsp;discoveryService,
                  <a href="../../../../org/apache/twill/discovery/DiscoveryServiceClient.html" title="interface in org.apache.twill.discovery">DiscoveryServiceClient</a>&nbsp;discoveryServiceClient,
                  <a href="../../../../org/apache/twill/zookeeper/ZKClient.html" title="interface in org.apache.twill.zookeeper">ZKClient</a>&nbsp;zkClient,
                  int&nbsp;instanceCount,
                  int&nbsp;allowedMemoryMB,
                  int&nbsp;virtualCores)</code>&nbsp;</td>
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 <td class="colFirst"><code><a href="../../../../org/apache/twill/common/Cancellable.html" title="interface in org.apache.twill.common">Cancellable</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/twill/internal/BasicTwillContext.html#announce-java.lang.String-int-">announce</a></span>(<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>&nbsp;serviceName,
         int&nbsp;port)</code>
 <div class="block">Registers an endpoint that could be discovered by external party.</div>
 </td>
 </tr>
 <tr id="i1" class="rowColor">
 <td class="colFirst"><code><a href="../../../../org/apache/twill/common/Cancellable.html" title="interface in org.apache.twill.common">Cancellable</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/twill/internal/BasicTwillContext.html#announce-java.lang.String-int-byte:A-">announce</a></span>(<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>&nbsp;serviceName,
         int&nbsp;port,
         byte[]&nbsp;payload)</code>
 <div class="block">Registers an endpoint that could be discovered by external party with a payload.</div>
 </td>
 </tr>
 <tr id="i2" class="altColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/locks/Lock.html?is-external=true" title="class or interface in java.util.concurrent.locks">Lock</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/twill/internal/BasicTwillContext.html#createLock-java.lang.String-">createLock</a></span>(<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>&nbsp;name)</code>
 <div class="block">Creates a <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/locks/Lock.html?is-external=true" title="class or interface in java.util.concurrent.locks"><code>Lock</code></a> for performing locking mechanism within the same <a href="../../../../org/apache/twill/api/TwillApplication.html" title="interface in org.apache.twill.api"><code>TwillApplication</code></a>.</div>
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 <td class="colFirst"><code><a href="../../../../org/apache/twill/discovery/ServiceDiscovered.html" title="interface in org.apache.twill.discovery">ServiceDiscovered</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/twill/internal/BasicTwillContext.html#discover-java.lang.String-">discover</a></span>(<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>&nbsp;name)</code>
 <div class="block">Discover service with the given name that is announced within the same <a href="../../../../org/apache/twill/api/TwillApplication.html" title="interface in org.apache.twill.api"><code>TwillApplication</code></a>.</div>
 </td>
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 <tr id="i4" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/twill/common/Cancellable.html" title="interface in org.apache.twill.common">Cancellable</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/twill/internal/BasicTwillContext.html#electLeader-java.lang.String-org.apache.twill.api.ElectionHandler-">electLeader</a></span>(<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>&nbsp;name,
            <a href="../../../../org/apache/twill/api/ElectionHandler.html" title="interface in org.apache.twill.api">ElectionHandler</a>&nbsp;participantHandler)</code>
 <div class="block">Register to participate in a leader election by instances within the same <a href="../../../../org/apache/twill/api/TwillApplication.html" title="interface in org.apache.twill.api"><code>TwillApplication</code></a>.</div>
 </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/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/twill/internal/BasicTwillContext.html#getApplicationArguments--">getApplicationArguments</a></span>()</code>
 <div class="block">Returns the runtime arguments that are passed to the <a href="../../../../org/apache/twill/api/TwillApplication.html" title="interface in org.apache.twill.api"><code>TwillApplication</code></a>.</div>
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 <tr id="i6" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/twill/api/RunId.html" title="interface in org.apache.twill.api">RunId</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/twill/internal/BasicTwillContext.html#getApplicationRunId--">getApplicationRunId</a></span>()</code>
 <div class="block">Returns the <a href="../../../../org/apache/twill/api/RunId.html" title="interface in org.apache.twill.api"><code>RunId</code></a> of this running application.</div>
 </td>
 </tr>
 <tr id="i7" 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/twill/internal/BasicTwillContext.html#getArguments--">getArguments</a></span>()</code>
 <div class="block">Returns the runtime arguments that are passed to the <a href="../../../../org/apache/twill/api/TwillRunnable.html" title="interface in org.apache.twill.api"><code>TwillRunnable</code></a>.</div>
 </td>
 </tr>
 <tr id="i8" class="altColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/net/InetAddress.html?is-external=true" title="class or interface in java.net">InetAddress</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/twill/internal/BasicTwillContext.html#getHost--">getHost</a></span>()</code>
 <div class="block">Returns the hostname that the runnable is running on.</div>
 </td>
 </tr>
 <tr id="i9" class="rowColor">
 <td class="colFirst"><code>int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/twill/internal/BasicTwillContext.html#getInstanceCount--">getInstanceCount</a></span>()</code>
 <div class="block">Returns the number of running instances assigned for this <a href="../../../../org/apache/twill/api/TwillRunnable.html" title="interface in org.apache.twill.api"><code>TwillRunnable</code></a>.</div>
 </td>
 </tr>
 <tr id="i10" class="altColor">
 <td class="colFirst"><code>int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/twill/internal/BasicTwillContext.html#getInstanceId--">getInstanceId</a></span>()</code>
 <div class="block">Returns an integer id from 0 to (instanceCount - 1).</div>
 </td>
 </tr>
 <tr id="i11" class="rowColor">
 <td class="colFirst"><code>int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/twill/internal/BasicTwillContext.html#getMaxMemoryMB--">getMaxMemoryMB</a></span>()</code>
 <div class="block">Returns the amount of memory in MB the runnable is allowed to use.</div>
 </td>
 </tr>
 <tr id="i12" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/twill/api/RunId.html" title="interface in org.apache.twill.api">RunId</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/twill/internal/BasicTwillContext.html#getRunId--">getRunId</a></span>()</code>
 <div class="block">Returns the <a href="../../../../org/apache/twill/api/RunId.html" title="interface in org.apache.twill.api"><code>RunId</code></a> of this running instance of <a href="../../../../org/apache/twill/api/TwillRunnable.html" title="interface in org.apache.twill.api"><code>TwillRunnable</code></a>.</div>
 </td>
 </tr>
 <tr id="i13" class="rowColor">
 <td class="colFirst"><code><a href="../../../../org/apache/twill/api/TwillRunnableSpecification.html" title="interface in org.apache.twill.api">TwillRunnableSpecification</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/twill/internal/BasicTwillContext.html#getSpecification--">getSpecification</a></span>()</code>
 <div class="block">Returns the <a href="../../../../org/apache/twill/api/TwillRunnableSpecification.html" title="interface in org.apache.twill.api"><code>TwillRunnableSpecification</code></a> that was created by <a href="../../../../org/apache/twill/api/TwillRunnable.html#configure--"><code>TwillRunnable.configure()</code></a>.</div>
 </td>
 </tr>
 <tr id="i14" class="altColor">
 <td class="colFirst"><code>int</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/twill/internal/BasicTwillContext.html#getVirtualCores--">getVirtualCores</a></span>()</code>
 <div class="block">Returns the number of virtual cores the runnable is allowed to use.</div>
 </td>
 </tr>
 <tr id="i15" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/twill/internal/BasicTwillContext.html#setInstanceCount-int-">setInstanceCount</a></span>(int&nbsp;count)</code>&nbsp;</td>
 </tr>
 <tr id="i16" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/twill/internal/BasicTwillContext.html#stop--">stop</a></span>()</code>
 <div class="block">Stops and frees any currently allocated resources.</div>
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 <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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 <h3>Constructor Detail</h3>
 <a name="BasicTwillContext-org.apache.twill.api.RunId-org.apache.twill.api.RunId-java.net.InetAddress-java.lang.String:A-java.lang.String:A-org.apache.twill.api.TwillRunnableSpecification-int-org.apache.twill.discovery.DiscoveryService-org.apache.twill.discovery.DiscoveryServiceClient-org.apache.twill.zookeeper.ZKClient-int-int-int-">
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 <h4>BasicTwillContext</h4>
 <pre>public&nbsp;BasicTwillContext(<a href="../../../../org/apache/twill/api/RunId.html" title="interface in org.apache.twill.api">RunId</a>&nbsp;runId,
                          <a href="../../../../org/apache/twill/api/RunId.html" title="interface in org.apache.twill.api">RunId</a>&nbsp;appRunId,
                          <a href="https://docs.oracle.com/javase/8/docs/api/java/net/InetAddress.html?is-external=true" title="class or interface in java.net">InetAddress</a>&nbsp;host,
                          <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>[]&nbsp;args,
                          <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>[]&nbsp;appArgs,
                          <a href="../../../../org/apache/twill/api/TwillRunnableSpecification.html" title="interface in org.apache.twill.api">TwillRunnableSpecification</a>&nbsp;spec,
                          int&nbsp;instanceId,
                          <a href="../../../../org/apache/twill/discovery/DiscoveryService.html" title="interface in org.apache.twill.discovery">DiscoveryService</a>&nbsp;discoveryService,
                          <a href="../../../../org/apache/twill/discovery/DiscoveryServiceClient.html" title="interface in org.apache.twill.discovery">DiscoveryServiceClient</a>&nbsp;discoveryServiceClient,
                          <a href="../../../../org/apache/twill/zookeeper/ZKClient.html" title="interface in org.apache.twill.zookeeper">ZKClient</a>&nbsp;zkClient,
                          int&nbsp;instanceCount,
                          int&nbsp;allowedMemoryMB,
                          int&nbsp;virtualCores)</pre>
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 <h4>getRunId</h4>
 <pre>public&nbsp;<a href="../../../../org/apache/twill/api/RunId.html" title="interface in org.apache.twill.api">RunId</a>&nbsp;getRunId()</pre>
 <div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../org/apache/twill/api/TwillContext.html#getRunId--">TwillContext</a></code></span></div>
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 <div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../org/apache/twill/api/TwillContext.html#getApplicationRunId--">TwillContext</a></code></span></div>
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 <div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../org/apache/twill/api/TwillContext.html#getHost--">TwillContext</a></code></span></div>
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 <dd><code><a href="../../../../org/apache/twill/api/TwillContext.html#createLock-java.lang.String-">createLock</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../org/apache/twill/api/TwillContext.html" title="interface in org.apache.twill.api">TwillContext</a></code></dd>
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