org.apache.flink.runtime.rest.handler.taskmanager.TaskManagerLogListHandler Maven / Gradle / Ivy
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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.taskmanager;
import org.apache.flink.api.common.time.Time;
import org.apache.flink.runtime.clusterframework.types.ResourceID;
import org.apache.flink.runtime.resourcemanager.ResourceManagerGateway;
import org.apache.flink.runtime.resourcemanager.exceptions.UnknownTaskExecutorException;
import org.apache.flink.runtime.rest.handler.HandlerRequest;
import org.apache.flink.runtime.rest.handler.RestHandlerException;
import org.apache.flink.runtime.rest.handler.resourcemanager.AbstractResourceManagerHandler;
import org.apache.flink.runtime.rest.messages.EmptyRequestBody;
import org.apache.flink.runtime.rest.messages.LogInfo;
import org.apache.flink.runtime.rest.messages.LogListInfo;
import org.apache.flink.runtime.rest.messages.MessageHeaders;
import org.apache.flink.runtime.rest.messages.taskmanager.TaskManagerIdPathParameter;
import org.apache.flink.runtime.rest.messages.taskmanager.TaskManagerMessageParameters;
import org.apache.flink.runtime.webmonitor.RestfulGateway;
import org.apache.flink.runtime.webmonitor.retriever.GatewayRetriever;
import org.apache.flink.util.ExceptionUtils;
import org.apache.flink.util.Preconditions;
import org.apache.flink.shaded.netty4.io.netty.handler.codec.http.HttpResponseStatus;
import javax.annotation.Nonnull;
import java.util.Collection;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionException;
/** Handler which serves detailed TaskManager log list information. */
public class TaskManagerLogListHandler
extends AbstractResourceManagerHandler<
RestfulGateway, EmptyRequestBody, LogListInfo, TaskManagerMessageParameters> {
private final GatewayRetriever resourceManagerGatewayRetriever;
public TaskManagerLogListHandler(
GatewayRetriever leaderRetriever,
Time timeout,
Map responseHeaders,
MessageHeaders
messageHeaders,
GatewayRetriever resourceManagerGatewayRetriever) {
super(
leaderRetriever,
timeout,
responseHeaders,
messageHeaders,
resourceManagerGatewayRetriever);
this.resourceManagerGatewayRetriever =
Preconditions.checkNotNull(resourceManagerGatewayRetriever);
}
@Override
protected CompletableFuture handleRequest(
@Nonnull HandlerRequest request,
@Nonnull ResourceManagerGateway gateway)
throws RestHandlerException {
final ResourceID taskManagerId = request.getPathParameter(TaskManagerIdPathParameter.class);
final ResourceManagerGateway resourceManagerGateway =
getResourceManagerGateway(resourceManagerGatewayRetriever);
final CompletableFuture> logsWithLengthFuture =
resourceManagerGateway.requestTaskManagerLogList(taskManagerId, timeout);
return logsWithLengthFuture
.thenApply(LogListInfo::new)
.exceptionally(
(throwable) -> {
final Throwable strippedThrowable =
ExceptionUtils.stripCompletionException(throwable);
if (strippedThrowable instanceof UnknownTaskExecutorException) {
throw new CompletionException(
new RestHandlerException(
"Could not find TaskExecutor " + taskManagerId,
HttpResponseStatus.NOT_FOUND,
strippedThrowable));
} else {
throw new CompletionException(throwable);
}
});
}
}