org.apache.flink.runtime.rest.handler.taskmanager.TaskManagerJMXHandler 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,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

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.HandlerRequest;
import org.apache.flink.runtime.rest.handler.RestHandlerException;
import org.apache.flink.runtime.rest.messages.EmptyRequestBody;
import org.apache.flink.runtime.rest.messages.MessageHeaders;
import org.apache.flink.runtime.rest.messages.taskmanager.JMXInfo;
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 javax.annotation.Nonnull;

import java.util.Map;
import java.util.concurrent.CompletableFuture;

/**
 * class for get jmx host and port for tm.
 */
public class TaskManagerJMXHandler extends AbstractTaskManagerHandler {

	public TaskManagerJMXHandler(
		CompletableFuture localRestAddress,
		GatewayRetriever leaderRetriever,
		Time timeout,
		Map responseHeaders,
		MessageHeaders messageHeaders,
		GatewayRetriever resourceManagerGatewayRetriever) {
		super(localRestAddress, leaderRetriever, timeout, responseHeaders, messageHeaders, resourceManagerGatewayRetriever);
	}

	@Override
	protected CompletableFuture handleRequest(
		@Nonnull HandlerRequest request,
		@Nonnull ResourceManagerGateway gateway) throws RestHandlerException {
		final ResourceID resourceID = request.getPathParameter(TaskManagerIdPathParameter
			.class);
		return getJmxPortFuture(resourceID, gateway).thenApply(jmxTuple -> new JMXInfo(jmxTuple.f0, jmxTuple.f1));
	}

	private CompletableFuture> getJmxPortFuture(ResourceID resourceID, ResourceManagerGateway gateway) {
		log.debug("get jmx information for resourceId:[{}].", resourceID.getResourceIdString());
		return gateway.requestJmx(resourceID, timeout);
	}

}