org.apache.flink.runtime.messages.checkpoint.AcknowledgeCheckpoint 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.messages.checkpoint;
import org.apache.flink.annotation.VisibleForTesting;
import org.apache.flink.api.common.JobID;
import org.apache.flink.runtime.checkpoint.CheckpointMetrics;
import org.apache.flink.runtime.checkpoint.TaskStateSnapshot;
import org.apache.flink.runtime.executiongraph.ExecutionAttemptID;
/**
* This message is sent from the {@link org.apache.flink.runtime.taskexecutor.TaskExecutor} to the
* {@link org.apache.flink.runtime.jobmaster.JobMaster} to signal that the checkpoint of an
* individual task is completed.
*
* This message may carry the handle to the task's chained operator state and the key group
* state.
*/
public class AcknowledgeCheckpoint extends AbstractCheckpointMessage {
private static final long serialVersionUID = -7606214777192401493L;
private final TaskStateSnapshot subtaskState;
private final CheckpointMetrics checkpointMetrics;
// ------------------------------------------------------------------------
public AcknowledgeCheckpoint(
JobID job,
ExecutionAttemptID taskExecutionId,
long checkpointId,
CheckpointMetrics checkpointMetrics,
TaskStateSnapshot subtaskState) {
super(job, taskExecutionId, checkpointId);
this.subtaskState = subtaskState;
this.checkpointMetrics = checkpointMetrics;
}
@VisibleForTesting
public AcknowledgeCheckpoint(JobID jobId, ExecutionAttemptID taskExecutionId, long checkpointId) {
this(jobId, taskExecutionId, checkpointId, new CheckpointMetrics(), null);
}
// ------------------------------------------------------------------------
// properties
// ------------------------------------------------------------------------
public TaskStateSnapshot getSubtaskState() {
return subtaskState;
}
public CheckpointMetrics getCheckpointMetrics() {
return checkpointMetrics;
}
// --------------------------------------------------------------------------------------------
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (!(o instanceof AcknowledgeCheckpoint)) {
return false;
}
if (!super.equals(o)) {
return false;
}
AcknowledgeCheckpoint that = (AcknowledgeCheckpoint) o;
return subtaskState != null ?
subtaskState.equals(that.subtaskState) : that.subtaskState == null;
}
@Override
public int hashCode() {
int result = super.hashCode();
result = 31 * result + (subtaskState != null ? subtaskState.hashCode() : 0);
return result;
}
@Override
public String toString() {
return String.format("Confirm Task Checkpoint %d for (%s/%s) - state=%s",
getCheckpointId(), getJob(), getTaskExecutionId(), subtaskState);
}
}