org.apache.flink.runtime.rest.handler.cluster.ClusterOverviewHandler 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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package org.apache.flink.runtime.rest.handler.cluster;
import org.apache.flink.api.common.time.Time;
import org.apache.flink.runtime.messages.webmonitor.ClusterOverview;
import org.apache.flink.runtime.rest.handler.AbstractRestHandler;
import org.apache.flink.runtime.rest.handler.HandlerRequest;
import org.apache.flink.runtime.rest.handler.legacy.messages.ClusterOverviewWithVersion;
import org.apache.flink.runtime.rest.messages.EmptyMessageParameters;
import org.apache.flink.runtime.rest.messages.EmptyRequestBody;
import org.apache.flink.runtime.rest.messages.MessageHeaders;
import org.apache.flink.runtime.util.EnvironmentInformation;
import org.apache.flink.runtime.webmonitor.RestfulGateway;
import org.apache.flink.runtime.webmonitor.retriever.GatewayRetriever;
import javax.annotation.Nonnull;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
/**
* Handler which returns the cluster overview information with version.
*/
public class ClusterOverviewHandler extends AbstractRestHandler {
private static final String version = EnvironmentInformation.getVersion();
private static final String commitID = EnvironmentInformation.getRevisionInformation().commitId;
public ClusterOverviewHandler(
GatewayRetriever leaderRetriever,
Time timeout,
Map responseHeaders,
MessageHeaders messageHeaders) {
super(leaderRetriever, timeout, responseHeaders, messageHeaders);
}
@Override
public CompletableFuture handleRequest(@Nonnull HandlerRequest request, @Nonnull RestfulGateway gateway) {
CompletableFuture overviewFuture = gateway.requestClusterOverview(timeout);
return overviewFuture.thenApply(
statusOverview -> ClusterOverviewWithVersion.fromStatusOverview(statusOverview, version, commitID));
}
}