org.apache.flink.runtime.executiongraph.StatusListenerMessenger Maven / Gradle / Ivy
/*
* 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.executiongraph;
import akka.actor.ActorRef;
import org.apache.flink.api.common.JobID;
import org.apache.flink.runtime.execution.ExecutionState;
import org.apache.flink.runtime.instance.AkkaActorGateway;
import org.apache.flink.runtime.jobgraph.JobStatus;
import org.apache.flink.runtime.jobgraph.JobVertexID;
import org.apache.flink.runtime.messages.ExecutionGraphMessages;
import org.apache.flink.util.SerializedThrowable;
import java.util.UUID;
import static org.apache.flink.util.Preconditions.checkNotNull;
/**
* A {@code JobStatusListener} and {@code ExecutionStatusListener} that sends an actor message
* for each status change.
*/
public class StatusListenerMessenger implements JobStatusListener, ExecutionStatusListener {
private final AkkaActorGateway target;
public StatusListenerMessenger(ActorRef target, UUID leaderSessionId) {
this.target = new AkkaActorGateway(checkNotNull(target), leaderSessionId);
}
@Override
public void jobStatusChanges(JobID jobId, JobStatus newJobStatus, long timestamp, Throwable error) {
ExecutionGraphMessages.JobStatusChanged message =
new ExecutionGraphMessages.JobStatusChanged(jobId, newJobStatus, timestamp,
error == null ? null : new SerializedThrowable(error));
target.tell(message);
}
@Override
public void executionStatusChanged(
JobID jobID, JobVertexID vertexID,
String taskName, int taskParallelism, int subtaskIndex,
ExecutionAttemptID executionID, ExecutionState newExecutionState,
long timestamp, String optionalMessage) {
ExecutionGraphMessages.ExecutionStateChanged message =
new ExecutionGraphMessages.ExecutionStateChanged(
jobID, vertexID, taskName, taskParallelism, subtaskIndex,
executionID, newExecutionState, timestamp, optionalMessage);
target.tell(message);
}
}