org.apache.flink.runtime.rest.handler.taskmanager.TaskManagerExceptionsHandler 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
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*/
package org.apache.flink.runtime.rest.handler.taskmanager;
import org.apache.flink.api.common.time.Time;
import org.apache.flink.api.java.tuple.Tuple2;
import org.apache.flink.runtime.clusterframework.types.ResourceID;
import org.apache.flink.runtime.resourcemanager.ResourceManagerGateway;
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.MessageHeaders;
import org.apache.flink.runtime.rest.messages.taskmanager.TaskManagerExceptionsInfos;
import org.apache.flink.runtime.webmonitor.RestfulGateway;
import org.apache.flink.runtime.webmonitor.retriever.GatewayRetriever;
import javax.annotation.Nonnull;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
/**
* Handler which get exception from TaskManager.
*/
public class TaskManagerExceptionsHandler extends AbstractRestHandler {
private final GatewayRetriever resourceManagerGatewayRetriever;
public TaskManagerExceptionsHandler(
CompletableFuture localRestAddress,
GatewayRetriever leaderRetriever,
Time timeout,
Map responseHeaders,
MessageHeaders messageHeaders,
GatewayRetriever resourceManagerGatewayRetriever) {
super(localRestAddress, leaderRetriever, timeout, responseHeaders, messageHeaders);
this.resourceManagerGatewayRetriever = resourceManagerGatewayRetriever;
}
@Override
protected CompletableFuture handleRequest(@Nonnull HandlerRequest request, @Nonnull RestfulGateway gateway) throws RestHandlerException {
ResourceManagerGateway resourceManagerGateway = getResourceManagerGateway(resourceManagerGatewayRetriever);
return resourceManagerGateway.requestTaskManagerExceptions(timeout).thenApply(time2Exceptions -> {
Map taskmanagerExceptionsTmp = new HashMap<>();
if (null != time2Exceptions) {
for (Map.Entry> time2Exception : time2Exceptions.entrySet()) {
TaskManagerExceptionsInfos.TaskManagerException te = new TaskManagerExceptionsInfos.TaskManagerException(time2Exception.getValue().f0, time2Exception.getValue().f1);
taskmanagerExceptionsTmp.put(time2Exception.getKey(), te);
}
}
return new TaskManagerExceptionsInfos(taskmanagerExceptionsTmp);
});
}
}