org.streampipes.wrapper.flink.FlinkJobController Maven / Gradle / Ivy

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/*
 * Copyright 2018 FZI Forschungszentrum Informatik
 *
 * Licensed 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.streampipes.wrapper.flink;

import akka.actor.ActorSystem;
import org.apache.flink.api.common.JobID;
import org.apache.flink.configuration.ConfigConstants;
import org.apache.flink.configuration.Configuration;
import org.apache.flink.runtime.akka.AkkaUtils;
import org.apache.flink.runtime.client.JobStatusMessage;
import org.apache.flink.runtime.concurrent.Executors;
import org.apache.flink.runtime.highavailability.HighAvailabilityServices;
import org.apache.flink.runtime.highavailability.HighAvailabilityServicesUtils;
import org.apache.flink.runtime.instance.ActorGateway;
import org.apache.flink.runtime.jobgraph.JobStatus;
import org.apache.flink.runtime.leaderretrieval.LeaderRetrievalService;
import org.apache.flink.runtime.messages.JobManagerMessages;
import org.apache.flink.runtime.messages.JobManagerMessages.RunningJobsStatus;
import org.apache.flink.runtime.util.LeaderRetrievalUtils;
import scala.Some;
import scala.concurrent.Await;
import scala.concurrent.Future;
import scala.concurrent.duration.FiniteDuration;

import java.io.IOException;
import java.util.List;
import java.util.concurrent.TimeUnit;

public class FlinkJobController {

	private final static FiniteDuration askTimeout = new FiniteDuration(120000, TimeUnit.MILLISECONDS);
	private final static FiniteDuration lookupTimeout = new FiniteDuration(120000, TimeUnit.MILLISECONDS);
	
	private final Configuration config;
	
	public FlinkJobController(String hostname, int port) {
		this.config = getConfig(hostname, port);
	}
	
	public ActorGateway getJobManagerGateway() throws Exception {
		
		ActorSystem actorSystem;
		scala.Tuple2 systemEndpoint = new scala.Tuple2<>("", 0);
		
		try {
			actorSystem = AkkaUtils.createActorSystem(
					config,
              new Some<>(systemEndpoint));
		}
		catch (Exception e) {
			throw new IOException("Could not start actor system to communicate with JobManager", e);
		}

		//LeaderRetrievalService lrs = LeaderRetrievalUtils.createLeaderRetrievalService(config);
		LeaderRetrievalService lrs = HighAvailabilityServicesUtils.createHighAvailabilityServices(
						config,
						Executors.directExecutor(),
						HighAvailabilityServicesUtils.AddressResolution.TRY_ADDRESS_RESOLUTION).getJobManagerLeaderRetriever
						(HighAvailabilityServices.DEFAULT_JOB_ID);

		return LeaderRetrievalUtils.retrieveLeaderGateway(lrs, actorSystem, lookupTimeout);
	}
	
	public JobID findJobId(ActorGateway jobManagerGateway, String jobName) throws Exception {
		
		Future