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<div class="subTitle">gobblin.instrumented.writer</div>
<h2 title="Class InstrumentedDataWriter" class="title">Class InstrumentedDataWriter&lt;D&gt;</h2>
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<li>gobblin.instrumented.writer.InstrumentedDataWriter&lt;D&gt;</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../gobblin/instrumented/Instrumentable.html" title="interface in gobblin.instrumented">Instrumentable</a>, <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/util/FinalState.html?is-external=true" title="class or interface in gobblin.util">FinalState</a>, <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/writer/DataWriter.html?is-external=true" title="class or interface in gobblin.writer">DataWriter</a>&lt;D&gt;, <a href="https://docs.oracle.com/javase/7/docs/api/java/io/Closeable.html?is-external=true" title="class or interface in java.io">Closeable</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/AutoCloseable.html?is-external=true" title="class or interface in java.lang">AutoCloseable</a></dd>
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<pre>public abstract class <span class="typeNameLabel">InstrumentedDataWriter&lt;D&gt;</span>
extends <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
<div class="block">Instrumented version of <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/writer/DataWriter.html?is-external=true" title="class or interface in gobblin.writer"><code>DataWriter</code></a> automatically capturing certain metrics.
Subclasses should implement writeImpl instead of write.</div>
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<h3>Field Summary</h3>
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<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
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<tr class="altColor">
<td class="colFirst"><code>protected <a href="http://google.github.io/guava/releases/15.0/api/docs/com/google/common/io/Closer.html?is-external=true" title="class or interface in com.google.common.io">Closer</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html#closer">closer</a></span></code>&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><code>static long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html#DEFAULT_WRITER_METRICS_UPDATER_INTERVAL">DEFAULT_WRITER_METRICS_UPDATER_INTERVAL</a></span></code>&nbsp;</td>
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<tr class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/7/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="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html#WRITER_METRICS_UPDATER_INTERVAL">WRITER_METRICS_UPDATER_INTERVAL</a></span></code>&nbsp;</td>
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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="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html#InstrumentedDataWriter-gobblin.configuration.State-">InstrumentedDataWriter</a></span>(<a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/configuration/State.html?is-external=true" title="class or interface in gobblin.configuration">State</a>&nbsp;state)</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="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract 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>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html#beforeWrite-D-">beforeWrite</a></span>(<a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/instrumented.writer.InstrumentedDataWriterBase.html?is-external=true" title="class or interface in gobblin">D</a>&nbsp;record)</code>
<div class="block">Called beforeWriting a record.</div>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html#close--">close</a></span>()</code>&nbsp;</td>
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<tr id="i2" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html#commit--">commit</a></span>()</code>
<div class="block">Update the <a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html#recordsWrittenMeter"><code>recordsWrittenMeter</code></a> and <a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html#bytesWrittenMeter"><code>bytesWrittenMeter</code></a>.</div>
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<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/7/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/Tag.html?is-external=true" title="class or interface in gobblin.metrics">Tag</a>&lt;?&gt;&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html#generateTags-gobblin.configuration.State-">generateTags</a></span>(<a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/configuration/State.html?is-external=true" title="class or interface in gobblin.configuration">State</a>&nbsp;state)</code>
<div class="block">Default with no additional tags</div>
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<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/configuration/State.html?is-external=true" title="class or interface in gobblin.configuration">State</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html#getFinalState--">getFinalState</a></span>()</code>
<div class="block">Get final state for this object.</div>
</td>
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<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/MetricContext.html?is-external=true" title="class or interface in gobblin.metrics">MetricContext</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html#getMetricContext--">getMetricContext</a></span>()</code>
<div class="block">Get <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/MetricContext.html?is-external=true" title="class or interface in gobblin.metrics"><code>MetricContext</code></a> containing metrics related to this Instrumentable.</div>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html#isInstrumentationEnabled--">isInstrumentationEnabled</a></span>()</code>
<div class="block">Returns true if instrumentation is activated.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html#onException-java.lang.Exception-">onException</a></span>(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a>&nbsp;exception)</code>
<div class="block">Called after a failed writing of a record.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html#onSuccessfulWrite-long-">onSuccessfulWrite</a></span>(long&nbsp;startTimeNanos)</code>
<div class="block">Called after a successful write of a record.</div>
</td>
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<tr id="i9" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html#regenerateMetrics--">regenerateMetrics</a></span>()</code>
<div class="block">Generates metrics for the instrumentation of this class.</div>
</td>
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<tr id="i10" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html#switchMetricContext-java.util.List-">switchMetricContext</a></span>(<a href="https://docs.oracle.com/javase/7/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/Tag.html?is-external=true" title="class or interface in gobblin.metrics">Tag</a>&lt;?&gt;&gt;&nbsp;tags)</code>
<div class="block">Generate a new <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/MetricContext.html?is-external=true" title="class or interface in gobblin.metrics"><code>MetricContext</code></a> replacing old <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/Tag.html?is-external=true" title="class or interface in gobblin.metrics"><code>Tag</code></a> with input
<a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/Tag.html?is-external=true" title="class or interface in gobblin.metrics"><code>Tag</code></a> (only tags with the same keys will be replaced),
and recreate all metrics in this new context.</div>
</td>
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<tr id="i11" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html#switchMetricContext-gobblin.metrics.MetricContext-">switchMetricContext</a></span>(<a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/MetricContext.html?is-external=true" title="class or interface in gobblin.metrics">MetricContext</a>&nbsp;context)</code>
<div class="block">Switches the existing <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/MetricContext.html?is-external=true" title="class or interface in gobblin.metrics"><code>MetricContext</code></a> with the supplied metric context and regenerates
<a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/Metric.html?is-external=true" title="class or interface in gobblin.metrics"><code>Metric</code></a>.</div>
</td>
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<tr id="i12" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html#write-D-">write</a></span>(<a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html" title="type parameter in InstrumentedDataWriter">D</a>&nbsp;record)</code>&nbsp;</td>
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<tr id="i13" class="rowColor">
<td class="colFirst"><code>abstract void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html#writeImpl-D-">writeImpl</a></span>(<a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/instrumented.writer.InstrumentedDataWriterBase.html?is-external=true" title="class or interface in gobblin">D</a>&nbsp;record)</code>
<div class="block">Subclasses should implement this instead of <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/writer/DataWriter.html?is-external=true#write-D-" title="class or interface in gobblin.writer"><code>DataWriter.write(D)</code></a></div>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/7/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/7/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/7/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/7/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/7/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/7/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/7/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/7/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/7/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/7/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/7/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>Methods inherited from interface&nbsp;gobblin.writer.<a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/writer/DataWriter.html?is-external=true" title="class or interface in gobblin.writer">DataWriter</a></h3>
<code><a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/writer/DataWriter.html?is-external=true#bytesWritten--" title="class or interface in gobblin.writer">bytesWritten</a>, <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/writer/DataWriter.html?is-external=true#cleanup--" title="class or interface in gobblin.writer">cleanup</a>, <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/writer/DataWriter.html?is-external=true#getMessageHandler--" title="class or interface in gobblin.writer">getMessageHandler</a>, <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/writer/DataWriter.html?is-external=true#recordsWritten--" title="class or interface in gobblin.writer">recordsWritten</a>, <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/writer/DataWriter.html?is-external=true#writeEnvelope-gobblin.stream.RecordEnvelope-" title="class or interface in gobblin.writer">writeEnvelope</a></code></li>
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<h3>Field Detail</h3>
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<h4>closer</h4>
<pre>protected final&nbsp;<a href="http://google.github.io/guava/releases/15.0/api/docs/com/google/common/io/Closer.html?is-external=true" title="class or interface in com.google.common.io">Closer</a> closer</pre>
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<h4>WRITER_METRICS_UPDATER_INTERVAL</h4>
<pre>public static final&nbsp;<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> WRITER_METRICS_UPDATER_INTERVAL</pre>
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<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../constant-values.html#gobblin.instrumented.writer.InstrumentedDataWriter.WRITER_METRICS_UPDATER_INTERVAL">Constant Field Values</a></dd>
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<h4>DEFAULT_WRITER_METRICS_UPDATER_INTERVAL</h4>
<pre>public static final&nbsp;long DEFAULT_WRITER_METRICS_UPDATER_INTERVAL</pre>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../constant-values.html#gobblin.instrumented.writer.InstrumentedDataWriter.DEFAULT_WRITER_METRICS_UPDATER_INTERVAL">Constant Field Values</a></dd>
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<pre>public&nbsp;InstrumentedDataWriter(<a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/configuration/State.html?is-external=true" title="class or interface in gobblin.configuration">State</a>&nbsp;state)</pre>
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<pre>public final&nbsp;void&nbsp;write(<a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html" title="type parameter in InstrumentedDataWriter">D</a>&nbsp;record)
throws <a href="https://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/writer/DataWriter.html?is-external=true#write-D-" title="class or interface in gobblin.writer">write</a></code>&nbsp;in interface&nbsp;<code><a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/writer/DataWriter.html?is-external=true" title="class or interface in gobblin.writer">DataWriter</a>&lt;<a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html" title="type parameter in InstrumentedDataWriter">D</a>&gt;</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<h4>switchMetricContext</h4>
<pre>public&nbsp;void&nbsp;switchMetricContext(<a href="https://docs.oracle.com/javase/7/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/Tag.html?is-external=true" title="class or interface in gobblin.metrics">Tag</a>&lt;?&gt;&gt;&nbsp;tags)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../gobblin/instrumented/Instrumentable.html#switchMetricContext-java.util.List-">Instrumentable</a></code></span></div>
<div class="block">Generate a new <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/MetricContext.html?is-external=true" title="class or interface in gobblin.metrics"><code>MetricContext</code></a> replacing old <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/Tag.html?is-external=true" title="class or interface in gobblin.metrics"><code>Tag</code></a> with input
<a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/Tag.html?is-external=true" title="class or interface in gobblin.metrics"><code>Tag</code></a> (only tags with the same keys will be replaced),
and recreate all metrics in this new context.
<p>
This method is useful when the state of the <a href="../../../gobblin/instrumented/Instrumentable.html" title="interface in gobblin.instrumented"><code>Instrumentable</code></a> changes and the user
wants that state change to be reflected in the tags of the instrumentation.
</p>
<p>
Notice that this method creates a brand new <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/MetricContext.html?is-external=true" title="class or interface in gobblin.metrics"><code>MetricContext</code></a> and <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/Metric.html?is-external=true" title="class or interface in gobblin.metrics"><code>Metric</code></a>
every time it is called,
with the associated processing and memory overhead. Use sparingly only for state changes that must be visible in
emitted metrics.
</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../gobblin/instrumented/Instrumentable.html#switchMetricContext-java.util.List-">switchMetricContext</a></code>&nbsp;in interface&nbsp;<code><a href="../../../gobblin/instrumented/Instrumentable.html" title="interface in gobblin.instrumented">Instrumentable</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>tags</code> - additional <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/Tag.html?is-external=true" title="class or interface in gobblin.metrics"><code>Tag</code></a>.</dd>
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<pre>public&nbsp;void&nbsp;switchMetricContext(<a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/MetricContext.html?is-external=true" title="class or interface in gobblin.metrics">MetricContext</a>&nbsp;context)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../gobblin/instrumented/Instrumentable.html#switchMetricContext-gobblin.metrics.MetricContext-">Instrumentable</a></code></span></div>
<div class="block">Switches the existing <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/MetricContext.html?is-external=true" title="class or interface in gobblin.metrics"><code>MetricContext</code></a> with the supplied metric context and regenerates
<a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/Metric.html?is-external=true" title="class or interface in gobblin.metrics"><code>Metric</code></a>.
<p>
This method is useful when the state of the <a href="../../../gobblin/instrumented/Instrumentable.html" title="interface in gobblin.instrumented"><code>Instrumentable</code></a> changes and the user
wants that state change to be reflected in the set of <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/Tag.html?is-external=true" title="class or interface in gobblin.metrics"><code>Tag</code></a> of the instrumentation.
</p>
<p>
This method is an alternative to <a href="../../../gobblin/instrumented/Instrumentable.html#switchMetricContext-java.util.List-"><code>Instrumentable.switchMetricContext(List)</code></a> when metric context switching is done
often between a small set of contexts. The subclass should keep a list of previously generated contexts as a cache,
and call this method to simply switch between the different contexts,
avoiding the overhead of generating a brand new context every time a metric context switch is required.
</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../gobblin/instrumented/Instrumentable.html#switchMetricContext-gobblin.metrics.MetricContext-">switchMetricContext</a></code>&nbsp;in interface&nbsp;<code><a href="../../../gobblin/instrumented/Instrumentable.html" title="interface in gobblin.instrumented">Instrumentable</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>context</code> - new <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/MetricContext.html?is-external=true" title="class or interface in gobblin.metrics"><code>MetricContext</code></a>.</dd>
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<pre>protected&nbsp;void&nbsp;regenerateMetrics()</pre>
<div class="block">Generates metrics for the instrumentation of this class.</div>
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<h4>generateTags</h4>
<pre>public&nbsp;<a href="https://docs.oracle.com/javase/7/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/Tag.html?is-external=true" title="class or interface in gobblin.metrics">Tag</a>&lt;?&gt;&gt;&nbsp;generateTags(<a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/configuration/State.html?is-external=true" title="class or interface in gobblin.configuration">State</a>&nbsp;state)</pre>
<div class="block">Default with no additional tags</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../gobblin/instrumented/Instrumentable.html#generateTags-gobblin.configuration.State-">generateTags</a></code>&nbsp;in interface&nbsp;<code><a href="../../../gobblin/instrumented/Instrumentable.html" title="interface in gobblin.instrumented">Instrumentable</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>List of tags to add to <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/MetricContext.html?is-external=true" title="class or interface in gobblin.metrics"><code>MetricContext</code></a>.</dd>
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<pre>public&nbsp;boolean&nbsp;isInstrumentationEnabled()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../gobblin/instrumented/Instrumentable.html#isInstrumentationEnabled--">Instrumentable</a></code></span></div>
<div class="block">Returns true if instrumentation is activated.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../gobblin/instrumented/Instrumentable.html#isInstrumentationEnabled--">isInstrumentationEnabled</a></code>&nbsp;in interface&nbsp;<code><a href="../../../gobblin/instrumented/Instrumentable.html" title="interface in gobblin.instrumented">Instrumentable</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if instrumentation is enabled, false otherwise.</dd>
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<pre>public&nbsp;void&nbsp;beforeWrite(<a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/instrumented.writer.InstrumentedDataWriterBase.html?is-external=true" title="class or interface in gobblin">D</a>&nbsp;record)</pre>
<div class="block">Called beforeWriting a record.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>record</code> - record to write.</dd>
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<pre>public&nbsp;void&nbsp;onSuccessfulWrite(long&nbsp;startTimeNanos)</pre>
<div class="block">Called after a successful write of a record.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>startTimeNanos</code> - time at which writing started.</dd>
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<pre>public&nbsp;void&nbsp;onException(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a>&nbsp;exception)</pre>
<div class="block">Called after a failed writing of a record.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>exception</code> - exception thrown.</dd>
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<pre>public abstract&nbsp;void&nbsp;writeImpl(<a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/instrumented.writer.InstrumentedDataWriterBase.html?is-external=true" title="class or interface in gobblin">D</a>&nbsp;record)
throws <a href="https://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block">Subclasses should implement this instead of <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/writer/DataWriter.html?is-external=true#write-D-" title="class or interface in gobblin.writer"><code>DataWriter.write(D)</code></a></div>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<pre>public&nbsp;<a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/configuration/State.html?is-external=true" title="class or interface in gobblin.configuration">State</a>&nbsp;getFinalState()</pre>
<div class="block">Get final state for this object. By default this returns an empty <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/configuration/State.html?is-external=true" title="class or interface in gobblin.configuration"><code>State</code></a>, but
concrete subclasses can add information that will be added to the task state.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/util/FinalState.html?is-external=true#getFinalState--" title="class or interface in gobblin.util">getFinalState</a></code>&nbsp;in interface&nbsp;<code><a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/util/FinalState.html?is-external=true" title="class or interface in gobblin.util">FinalState</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Empty <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/configuration/State.html?is-external=true" title="class or interface in gobblin.configuration"><code>State</code></a>.</dd>
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<h4>close</h4>
<pre>public&nbsp;void&nbsp;close()
throws <a href="https://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/io/Closeable.html?is-external=true#close--" title="class or interface in java.io">close</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/javase/7/docs/api/java/io/Closeable.html?is-external=true" title="class or interface in java.io">Closeable</a></code></dd>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/AutoCloseable.html?is-external=true#close--" title="class or interface in java.lang">close</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/AutoCloseable.html?is-external=true" title="class or interface in java.lang">AutoCloseable</a></code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<h4>getMetricContext</h4>
<pre>public&nbsp;<a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/MetricContext.html?is-external=true" title="class or interface in gobblin.metrics">MetricContext</a>&nbsp;getMetricContext()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../gobblin/instrumented/Instrumentable.html#getMetricContext--">Instrumentable</a></code></span></div>
<div class="block">Get <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/MetricContext.html?is-external=true" title="class or interface in gobblin.metrics"><code>MetricContext</code></a> containing metrics related to this Instrumentable.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../gobblin/instrumented/Instrumentable.html#getMetricContext--">getMetricContext</a></code>&nbsp;in interface&nbsp;<code><a href="../../../gobblin/instrumented/Instrumentable.html" title="interface in gobblin.instrumented">Instrumentable</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>an instance of <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-metrics/gobblin/metrics/MetricContext.html?is-external=true" title="class or interface in gobblin.metrics"><code>MetricContext</code></a>.</dd>
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<h4>commit</h4>
<pre>public&nbsp;void&nbsp;commit()
throws <a href="https://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block">Update the <a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html#recordsWrittenMeter"><code>recordsWrittenMeter</code></a> and <a href="../../../gobblin/instrumented/writer/InstrumentedDataWriter.html#bytesWrittenMeter"><code>bytesWrittenMeter</code></a>. This method should be invoked after the
wrapped <a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/writer/DataWriter.html?is-external=true#commit--" title="class or interface in gobblin.writer"><code>DataWriter.commit()</code></a> is invoked. This ensures that the record-level and byte-level meters are
updated at least once.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/writer/DataWriter.html?is-external=true#commit--" title="class or interface in gobblin.writer">commit</a></code>&nbsp;in interface&nbsp;<code><a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/writer/DataWriter.html?is-external=true" title="class or interface in gobblin.writer">DataWriter</a>&lt;<a href="http://linkedin.github.io/gobblin/javadoc/0.11.0/gobblin-api/gobblin/instrumented.writer.InstrumentedDataWriterBase.html?is-external=true" title="class or interface in gobblin">D</a>&gt;</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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