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| <pre>@DefaultImplementation(value=<a href="../../../../../edu/snu/coral/runtime/master/MetricManagerMaster.html" title="class in edu.snu.coral.runtime.master">MetricManagerMaster.class</a>) |
| public interface <span class="typeNameLabel">MetricMessageHandler</span></pre> |
| <div class="block">Metric message handler.</div> |
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| <td class="colFirst"><code><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><<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="../../../../../edu/snu/coral/runtime/master/MetricMessageHandler.html#getMetricByKey-java.lang.String-">getMetricByKey</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> metricKey)</code> |
| <div class="block">Retrieves the string form of metric given the metric key.</div> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../edu/snu/coral/runtime/master/MetricMessageHandler.html#onMetricMessageReceived-java.lang.String-java.lang.String-">onMetricMessageReceived</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> metricKey, |
| <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> metricValue)</code> |
| <div class="block">Handle the received metric message.</div> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../edu/snu/coral/runtime/master/MetricMessageHandler.html#terminate--">terminate</a></span>()</code> |
| <div class="block">Cleans up and terminates this handler.</div> |
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| <h4>onMetricMessageReceived</h4> |
| <pre>void onMetricMessageReceived(<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> metricKey, |
| <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> metricValue)</pre> |
| <div class="block">Handle the received metric message.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>metricKey</code> - a given key for the metric (ex. TaskGroup ID)</dd> |
| <dd><code>metricValue</code> - the metric formatted as a string (ex. JSON).</dd> |
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| <h4>getMetricByKey</h4> |
| <pre><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><<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>> getMetricByKey(<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> metricKey)</pre> |
| <div class="block">Retrieves the string form of metric given the metric key.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>metricKey</code> - to retrieve the metric for</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the list of accumulated metric in string (ex. JSON)</dd> |
| </dl> |
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| <h4>terminate</h4> |
| <pre>void terminate()</pre> |
| <div class="block">Cleans up and terminates this handler.</div> |
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