org.apache.flink.runtime.rest.handler.job.metrics.SubtaskMetricsHandler Maven / Gradle / Ivy
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* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
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package org.apache.flink.runtime.rest.handler.job.metrics;
import org.apache.flink.api.common.JobID;
import org.apache.flink.api.common.time.Time;
import org.apache.flink.runtime.jobgraph.JobVertexID;
import org.apache.flink.runtime.rest.handler.HandlerRequest;
import org.apache.flink.runtime.rest.handler.legacy.metrics.MetricFetcher;
import org.apache.flink.runtime.rest.handler.legacy.metrics.MetricStore;
import org.apache.flink.runtime.rest.messages.EmptyRequestBody;
import org.apache.flink.runtime.rest.messages.JobIDPathParameter;
import org.apache.flink.runtime.rest.messages.JobVertexIdPathParameter;
import org.apache.flink.runtime.rest.messages.SubtaskIndexPathParameter;
import org.apache.flink.runtime.rest.messages.job.metrics.SubtaskMetricsHeaders;
import org.apache.flink.runtime.rest.messages.job.metrics.SubtaskMetricsMessageParameters;
import org.apache.flink.runtime.webmonitor.RestfulGateway;
import org.apache.flink.runtime.webmonitor.retriever.GatewayRetriever;
import javax.annotation.Nullable;
import java.util.Map;
/**
* Handler that returns subtask metrics.
*
* @see MetricStore#getSubtaskMetricStore(String, String, int)
*/
public class SubtaskMetricsHandler extends AbstractMetricsHandler {
public SubtaskMetricsHandler(
GatewayRetriever leaderRetriever,
Time timeout,
Map headers,
MetricFetcher metricFetcher) {
super(leaderRetriever, timeout, headers, SubtaskMetricsHeaders.getInstance(),
metricFetcher);
}
@Nullable
@Override
protected MetricStore.ComponentMetricStore getComponentMetricStore(
HandlerRequest request,
MetricStore metricStore) {
final JobID jobId = request.getPathParameter(JobIDPathParameter.class);
final JobVertexID vertexId = request.getPathParameter(JobVertexIdPathParameter.class);
final int subtaskIndex = request.getPathParameter(SubtaskIndexPathParameter.class);
return metricStore.getSubtaskMetricStore(jobId.toString(), vertexId.toString(), subtaskIndex);
}
}