org.apache.flink.runtime.rest.handler.job.JobVertexAccumulatorsHandler 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
*
* 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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*/
package org.apache.flink.runtime.rest.handler.job;
import org.apache.flink.api.common.time.Time;
import org.apache.flink.runtime.accumulators.StringifiedAccumulatorResult;
import org.apache.flink.runtime.executiongraph.AccessExecutionJobVertex;
import org.apache.flink.runtime.rest.handler.HandlerRequest;
import org.apache.flink.runtime.rest.handler.RestHandlerException;
import org.apache.flink.runtime.rest.handler.legacy.ExecutionGraphCache;
import org.apache.flink.runtime.rest.messages.EmptyRequestBody;
import org.apache.flink.runtime.rest.messages.JobVertexAccumulatorsInfo;
import org.apache.flink.runtime.rest.messages.JobVertexMessageParameters;
import org.apache.flink.runtime.rest.messages.MessageHeaders;
import org.apache.flink.runtime.rest.messages.job.UserAccumulator;
import org.apache.flink.runtime.webmonitor.RestfulGateway;
import org.apache.flink.runtime.webmonitor.retriever.GatewayRetriever;
import java.util.ArrayList;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.Executor;
/**
* Request handler for the job vertex accumulators.
*/
public class JobVertexAccumulatorsHandler extends AbstractJobVertexHandler {
public JobVertexAccumulatorsHandler(
CompletableFuture localRestAddress,
GatewayRetriever leaderRetriever,
Time timeout,
Map responseHeaders,
MessageHeaders messageHeaders,
ExecutionGraphCache executionGraphCache,
Executor executor) {
super(
localRestAddress,
leaderRetriever,
timeout,
responseHeaders,
messageHeaders,
executionGraphCache,
executor);
}
@Override
protected JobVertexAccumulatorsInfo handleRequest(
HandlerRequest request,
AccessExecutionJobVertex jobVertex) throws RestHandlerException {
StringifiedAccumulatorResult[] accs = jobVertex.getAggregatedUserAccumulatorsStringified();
ArrayList userAccumulatorList = new ArrayList<>(accs.length);
for (StringifiedAccumulatorResult acc : accs) {
userAccumulatorList.add(
new UserAccumulator(
acc.getName(),
acc.getType(),
acc.getValue()));
}
return new JobVertexAccumulatorsInfo(jobVertex.getJobVertexId().toString(), userAccumulatorList);
}
}