org.apache.flink.runtime.rest.handler.cluster.ShutdownHandler Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
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* 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.rest.handler.AbstractRestHandler;
import org.apache.flink.runtime.rest.handler.HandlerRequest;
import org.apache.flink.runtime.rest.handler.RestHandlerException;
import org.apache.flink.runtime.rest.messages.EmptyMessageParameters;
import org.apache.flink.runtime.rest.messages.EmptyRequestBody;
import org.apache.flink.runtime.rest.messages.EmptyResponseBody;
import org.apache.flink.runtime.rest.messages.MessageHeaders;
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;
/**
* REST handler which allows to shut down the cluster.
*/
public class ShutdownHandler extends
AbstractRestHandler {
public ShutdownHandler(
final CompletableFuture localRestAddress,
final GatewayRetriever leaderRetriever,
final Time timeout,
final Map responseHeaders,
final MessageHeaders messageHeaders) {
super(localRestAddress, leaderRetriever, timeout, responseHeaders, messageHeaders);
}
@Override
protected CompletableFuture handleRequest(
@Nonnull final HandlerRequest request,
@Nonnull final RestfulGateway gateway) throws RestHandlerException {
return gateway.shutDownCluster().thenApply(ignored -> EmptyResponseBody.getInstance());
}
}