org.apache.flink.runtime.rest.handler.legacy.metrics.AggregatingJobsMetricsHandler Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* 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
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
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* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.flink.runtime.rest.handler.legacy.metrics;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Map;
import java.util.concurrent.Executor;
/**
* Request handler that returns, aggregated across all 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(Executor executor, MetricFetcher fetcher) {
super(executor, fetcher);
}
@Override
protected Collection getStores(MetricStore store, Map pathParameters, Map queryParameters) {
String jobsList = queryParameters.get("jobs");
if (jobsList == null || jobsList.isEmpty()) {
return store.getJobs().values();
} else {
String[] jobs = jobsList.split(",");
Collection jobStores = new ArrayList<>();
for (String job : jobs) {
jobStores.add(store.getJobMetricStore(job));
}
return jobStores;
}
}
@Override
public String[] getPaths() {
return new String[]{"/jobs/metrics"};
}
}