org.apache.flink.runtime.rest.handler.job.metrics.AggregatingJobsMetricsHandler Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
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* distributed with this work for additional information
* 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.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.job.metrics.AggregatedJobMetricsHeaders;
import org.apache.flink.runtime.rest.messages.job.metrics.AggregatedJobMetricsParameters;
import org.apache.flink.runtime.rest.messages.job.metrics.JobsFilterQueryParameter;
import org.apache.flink.runtime.webmonitor.RestfulGateway;
import org.apache.flink.runtime.webmonitor.retriever.GatewayRetriever;
import javax.annotation.Nonnull;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.Executor;
/**
* Request handler that returns, aggregated across jobs, a list of all available metrics or the values
* for a set of metrics.
*
* Specific jobs can be selected for aggregation by specifying a comma-separated list of job IDs.
* {@code /metrics?get=X,Y&jobs=A,B}
*/
public class AggregatingJobsMetricsHandler extends AbstractAggregatingMetricsHandler {
public AggregatingJobsMetricsHandler(
CompletableFuture localRestAddress,
GatewayRetriever leaderRetriever,
Time timeout, Map responseHeaders,
Executor executor,
MetricFetcher fetcher) {
super(localRestAddress, leaderRetriever, timeout, responseHeaders, AggregatedJobMetricsHeaders.getInstance(), executor, fetcher);
}
@Nonnull
@Override
Collection getStores(MetricStore store, HandlerRequest request) {
List jobs = request.getQueryParameter(JobsFilterQueryParameter.class);
if (jobs.isEmpty()) {
return store.getJobs().values();
} else {
Collection jobStores = new ArrayList<>(jobs.size());
for (JobID job : jobs) {
MetricStore.ComponentMetricStore jobMetricStore = store.getJobMetricStore(job.toString());
if (jobMetricStore != null) {
jobStores.add(jobMetricStore);
}
}
return jobStores;
}
}
}