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<div class="subTitle">org.apache.drill.exec.work.batch</div>
<h2 title="Class ControlMessageHandler" class="title">Class ControlMessageHandler</h2>
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<li>org.apache.drill.exec.work.batch.ControlMessageHandler</li>
</ul>
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<dl>
<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../../../org/apache/drill/exec/rpc/RequestHandler.html" title="interface in org.apache.drill.exec.rpc">RequestHandler</a>&lt;<a href="../../../../../../org/apache/drill/exec/rpc/control/ControlConnection.html" title="class in org.apache.drill.exec.rpc.control">ControlConnection</a>&gt;</dd>
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<pre>public class <span class="typeNameLabel">ControlMessageHandler</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/drill/exec/rpc/RequestHandler.html" title="interface in org.apache.drill.exec.rpc">RequestHandler</a>&lt;<a href="../../../../../../org/apache/drill/exec/rpc/control/ControlConnection.html" title="class in org.apache.drill.exec.rpc.control">ControlConnection</a>&gt;</pre>
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/work/batch/ControlMessageHandler.html#ControlMessageHandler-org.apache.drill.exec.work.WorkManager.WorkerBee-">ControlMessageHandler</a></span>(<a href="../../../../../../org/apache/drill/exec/work/WorkManager.WorkerBee.html" title="class in org.apache.drill.exec.work">WorkManager.WorkerBee</a>&nbsp;bee)</code>&nbsp;</td>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/drill/exec/proto/GeneralRPCProtos.Ack.html" title="class in org.apache.drill.exec.proto">GeneralRPCProtos.Ack</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/work/batch/ControlMessageHandler.html#cancelFragment-org.apache.drill.exec.proto.ExecProtos.FragmentHandle-">cancelFragment</a></span>(<a href="../../../../../../org/apache/drill/exec/proto/ExecProtos.FragmentHandle.html" title="class in org.apache.drill.exec.proto">ExecProtos.FragmentHandle</a>&nbsp;handle)</code>&nbsp;</td>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/drill/exec/rpc/control/CustomHandlerRegistry.html" title="class in org.apache.drill.exec.rpc.control">CustomHandlerRegistry</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/work/batch/ControlMessageHandler.html#getHandlerRegistry--">getHandlerRegistry</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/work/batch/ControlMessageHandler.html#handle-org.apache.drill.exec.rpc.control.ControlConnection-int-io.netty.buffer.ByteBuf-io.netty.buffer.ByteBuf-org.apache.drill.exec.rpc.ResponseSender-">handle</a></span>(<a href="../../../../../../org/apache/drill/exec/rpc/control/ControlConnection.html" title="class in org.apache.drill.exec.rpc.control">ControlConnection</a>&nbsp;connection,
int&nbsp;rpcType,
io.netty.buffer.ByteBuf&nbsp;pBody,
io.netty.buffer.ByteBuf&nbsp;dBody,
<a href="../../../../../../org/apache/drill/exec/rpc/ResponseSender.html" title="interface in org.apache.drill.exec.rpc">ResponseSender</a>&nbsp;sender)</code>
<div class="block">Handle request of given type (rpcType) with message (pBody) and optional data (dBody)
on the connection, and return the appropriate response.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/drill/exec/proto/GeneralRPCProtos.Ack.html" title="class in org.apache.drill.exec.proto">GeneralRPCProtos.Ack</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/work/batch/ControlMessageHandler.html#initializeFragment-org.apache.drill.exec.proto.BitControl.InitializeFragments-">initializeFragment</a></span>(<a href="../../../../../../org/apache/drill/exec/proto/BitControl.InitializeFragments.html" title="class in org.apache.drill.exec.proto">BitControl.InitializeFragments</a>&nbsp;fragments)</code>&nbsp;</td>
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<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/drill/exec/proto/GeneralRPCProtos.Ack.html" title="class in org.apache.drill.exec.proto">GeneralRPCProtos.Ack</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/work/batch/ControlMessageHandler.html#receivingFragmentFinished-org.apache.drill.exec.proto.BitControl.FinishedReceiver-">receivingFragmentFinished</a></span>(<a href="../../../../../../org/apache/drill/exec/proto/BitControl.FinishedReceiver.html" title="class in org.apache.drill.exec.proto">BitControl.FinishedReceiver</a>&nbsp;finishedReceiver)</code>&nbsp;</td>
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<td class="colFirst"><code><a href="../../../../../../org/apache/drill/exec/proto/GeneralRPCProtos.Ack.html" title="class in org.apache.drill.exec.proto">GeneralRPCProtos.Ack</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/work/batch/ControlMessageHandler.html#requestFragmentStatus-org.apache.drill.exec.proto.BitControl.FragmentStatus-">requestFragmentStatus</a></span>(<a href="../../../../../../org/apache/drill/exec/proto/BitControl.FragmentStatus.html" title="class in org.apache.drill.exec.proto">BitControl.FragmentStatus</a>&nbsp;status)</code>&nbsp;</td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/work/batch/ControlMessageHandler.html#requestQueryCancel-org.apache.drill.exec.proto.UserBitShared.QueryId-">requestQueryCancel</a></span>(<a href="../../../../../../org/apache/drill/exec/proto/UserBitShared.QueryId.html" title="class in org.apache.drill.exec.proto">UserBitShared.QueryId</a>&nbsp;queryId)</code>&nbsp;</td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/work/batch/ControlMessageHandler.html#requestQueryStatus-org.apache.drill.exec.proto.UserBitShared.QueryId-">requestQueryStatus</a></span>(<a href="../../../../../../org/apache/drill/exec/proto/UserBitShared.QueryId.html" title="class in org.apache.drill.exec.proto">UserBitShared.QueryId</a>&nbsp;queryId)</code>&nbsp;</td>
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<tr id="i8" class="altColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/drill/exec/proto/GeneralRPCProtos.Ack.html" title="class in org.apache.drill.exec.proto">GeneralRPCProtos.Ack</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/work/batch/ControlMessageHandler.html#resumeFragment-org.apache.drill.exec.proto.ExecProtos.FragmentHandle-">resumeFragment</a></span>(<a href="../../../../../../org/apache/drill/exec/proto/ExecProtos.FragmentHandle.html" title="class in org.apache.drill.exec.proto">ExecProtos.FragmentHandle</a>&nbsp;handle)</code>&nbsp;</td>
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<tr id="i9" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/work/batch/ControlMessageHandler.html#startNewFragment-org.apache.drill.exec.proto.BitControl.PlanFragment-org.apache.drill.exec.server.DrillbitContext-">startNewFragment</a></span>(<a href="../../../../../../org/apache/drill/exec/proto/BitControl.PlanFragment.html" title="class in org.apache.drill.exec.proto">BitControl.PlanFragment</a>&nbsp;fragment,
<a href="../../../../../../org/apache/drill/exec/server/DrillbitContext.html" title="class in org.apache.drill.exec.server">DrillbitContext</a>&nbsp;drillbitContext)</code>
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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>
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<h4>ControlMessageHandler</h4>
<pre>public&nbsp;ControlMessageHandler(<a href="../../../../../../org/apache/drill/exec/work/WorkManager.WorkerBee.html" title="class in org.apache.drill.exec.work">WorkManager.WorkerBee</a>&nbsp;bee)</pre>
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<a name="handle-org.apache.drill.exec.rpc.control.ControlConnection-int-io.netty.buffer.ByteBuf-io.netty.buffer.ByteBuf-org.apache.drill.exec.rpc.ResponseSender-">
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<h4>handle</h4>
<pre>public&nbsp;void&nbsp;handle(<a href="../../../../../../org/apache/drill/exec/rpc/control/ControlConnection.html" title="class in org.apache.drill.exec.rpc.control">ControlConnection</a>&nbsp;connection,
int&nbsp;rpcType,
io.netty.buffer.ByteBuf&nbsp;pBody,
io.netty.buffer.ByteBuf&nbsp;dBody,
<a href="../../../../../../org/apache/drill/exec/rpc/ResponseSender.html" title="interface in org.apache.drill.exec.rpc">ResponseSender</a>&nbsp;sender)
throws <a href="../../../../../../org/apache/drill/exec/rpc/RpcException.html" title="class in org.apache.drill.exec.rpc">RpcException</a></pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../org/apache/drill/exec/rpc/RequestHandler.html#handle-S-int-io.netty.buffer.ByteBuf-io.netty.buffer.ByteBuf-org.apache.drill.exec.rpc.ResponseSender-">RequestHandler</a></code></span></div>
<div class="block">Handle request of given type (rpcType) with message (pBody) and optional data (dBody)
on the connection, and return the appropriate response.
The method must do one of three things:
+ use <a href="../../../../../../org/apache/drill/exec/rpc/ResponseSender.html#send-org.apache.drill.exec.rpc.Response-"><code>send</code></a> the response
+ throw UserRpcException, in which case a response will be sent using <a href="../../../../../../org/apache/drill/exec/rpc/ResponseSender.html#send-org.apache.drill.exec.rpc.Response-"><code>send</code></a>
+ throw an Exception, in which case, the connection will be dropped</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/drill/exec/rpc/RequestHandler.html#handle-S-int-io.netty.buffer.ByteBuf-io.netty.buffer.ByteBuf-org.apache.drill.exec.rpc.ResponseSender-">handle</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/drill/exec/rpc/RequestHandler.html" title="interface in org.apache.drill.exec.rpc">RequestHandler</a>&lt;<a href="../../../../../../org/apache/drill/exec/rpc/control/ControlConnection.html" title="class in org.apache.drill.exec.rpc.control">ControlConnection</a>&gt;</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>connection</code> - remote connection</dd>
<dd><code>rpcType</code> - rpc type</dd>
<dd><code>pBody</code> - message</dd>
<dd><code>dBody</code> - data, maybe null</dd>
<dd><code>sender</code> - used to <a href="../../../../../../org/apache/drill/exec/rpc/ResponseSender.html#send-org.apache.drill.exec.rpc.Response-"><code>send</code></a> the response</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../org/apache/drill/exec/rpc/RpcException.html" title="class in org.apache.drill.exec.rpc">RpcException</a></code></dd>
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<h4>startNewFragment</h4>
<pre>public&nbsp;void&nbsp;startNewFragment(<a href="../../../../../../org/apache/drill/exec/proto/BitControl.PlanFragment.html" title="class in org.apache.drill.exec.proto">BitControl.PlanFragment</a>&nbsp;fragment,
<a href="../../../../../../org/apache/drill/exec/server/DrillbitContext.html" title="class in org.apache.drill.exec.server">DrillbitContext</a>&nbsp;drillbitContext)
throws <a href="../../../../../../org/apache/drill/exec/rpc/UserRpcException.html" title="class in org.apache.drill.exec.rpc">UserRpcException</a></pre>
<div class="block">Start a new fragment on this node. These fragments can be leaf or intermediate fragments
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>fragment</code> - </dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../org/apache/drill/exec/rpc/UserRpcException.html" title="class in org.apache.drill.exec.rpc">UserRpcException</a></code></dd>
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<h4>cancelFragment</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/drill/exec/proto/GeneralRPCProtos.Ack.html" title="class in org.apache.drill.exec.proto">GeneralRPCProtos.Ack</a>&nbsp;cancelFragment(<a href="../../../../../../org/apache/drill/exec/proto/ExecProtos.FragmentHandle.html" title="class in org.apache.drill.exec.proto">ExecProtos.FragmentHandle</a>&nbsp;handle)</pre>
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<h4>resumeFragment</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/drill/exec/proto/GeneralRPCProtos.Ack.html" title="class in org.apache.drill.exec.proto">GeneralRPCProtos.Ack</a>&nbsp;resumeFragment(<a href="../../../../../../org/apache/drill/exec/proto/ExecProtos.FragmentHandle.html" title="class in org.apache.drill.exec.proto">ExecProtos.FragmentHandle</a>&nbsp;handle)</pre>
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<pre>public&nbsp;<a href="../../../../../../org/apache/drill/exec/proto/GeneralRPCProtos.Ack.html" title="class in org.apache.drill.exec.proto">GeneralRPCProtos.Ack</a>&nbsp;receivingFragmentFinished(<a href="../../../../../../org/apache/drill/exec/proto/BitControl.FinishedReceiver.html" title="class in org.apache.drill.exec.proto">BitControl.FinishedReceiver</a>&nbsp;finishedReceiver)</pre>
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<pre>public&nbsp;<a href="../../../../../../org/apache/drill/exec/proto/GeneralRPCProtos.Ack.html" title="class in org.apache.drill.exec.proto">GeneralRPCProtos.Ack</a>&nbsp;requestFragmentStatus(<a href="../../../../../../org/apache/drill/exec/proto/BitControl.FragmentStatus.html" title="class in org.apache.drill.exec.proto">BitControl.FragmentStatus</a>&nbsp;status)</pre>
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<h4>requestQueryCancel</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/drill/exec/proto/GeneralRPCProtos.Ack.html" title="class in org.apache.drill.exec.proto">GeneralRPCProtos.Ack</a>&nbsp;requestQueryCancel(<a href="../../../../../../org/apache/drill/exec/proto/UserBitShared.QueryId.html" title="class in org.apache.drill.exec.proto">UserBitShared.QueryId</a>&nbsp;queryId)</pre>
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<h4>initializeFragment</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/drill/exec/proto/GeneralRPCProtos.Ack.html" title="class in org.apache.drill.exec.proto">GeneralRPCProtos.Ack</a>&nbsp;initializeFragment(<a href="../../../../../../org/apache/drill/exec/proto/BitControl.InitializeFragments.html" title="class in org.apache.drill.exec.proto">BitControl.InitializeFragments</a>&nbsp;fragments)
throws <a href="../../../../../../org/apache/drill/exec/rpc/RpcException.html" title="class in org.apache.drill.exec.rpc">RpcException</a></pre>
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../org/apache/drill/exec/rpc/RpcException.html" title="class in org.apache.drill.exec.rpc">RpcException</a></code></dd>
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<h4>requestQueryStatus</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/drill/exec/proto/UserBitShared.QueryProfile.html" title="class in org.apache.drill.exec.proto">UserBitShared.QueryProfile</a>&nbsp;requestQueryStatus(<a href="../../../../../../org/apache/drill/exec/proto/UserBitShared.QueryId.html" title="class in org.apache.drill.exec.proto">UserBitShared.QueryId</a>&nbsp;queryId)
throws <a href="../../../../../../org/apache/drill/exec/rpc/RpcException.html" title="class in org.apache.drill.exec.rpc">RpcException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../org/apache/drill/exec/rpc/RpcException.html" title="class in org.apache.drill.exec.rpc">RpcException</a></code></dd>
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<h4>getHandlerRegistry</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/drill/exec/rpc/control/CustomHandlerRegistry.html" title="class in org.apache.drill.exec.rpc.control">CustomHandlerRegistry</a>&nbsp;getHandlerRegistry()</pre>
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