org.apache.flink.runtime.checkpoint.CompletedCheckpoint 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.checkpoint;
import org.apache.flink.api.common.JobID;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
/**
* A successful checkpoint describes a checkpoint after all required tasks acknowledged it (with their state)
* and that is considered completed.
*/
public class CompletedCheckpoint implements Serializable {
private static final long serialVersionUID = -8360248179615702014L;
private final JobID job;
private final long checkpointID;
/** The timestamp when the checkpoint was triggered. */
private final long timestamp;
/** The duration of the checkpoint (completion timestamp - trigger timestamp). */
private final long duration;
private final ArrayList states;
public CompletedCheckpoint(
JobID job,
long checkpointID,
long timestamp,
long completionTimestamp,
ArrayList states) {
this.job = job;
this.checkpointID = checkpointID;
this.timestamp = timestamp;
this.duration = completionTimestamp - timestamp;
this.states = states;
}
public JobID getJobId() {
return job;
}
public long getCheckpointID() {
return checkpointID;
}
public long getTimestamp() {
return timestamp;
}
public long getDuration() {
return duration;
}
public List getStates() {
return states;
}
// --------------------------------------------------------------------------------------------
public void discard(ClassLoader userClassLoader) {
for(StateForTask state: states){
state.discard(userClassLoader);
}
states.clear();
}
// --------------------------------------------------------------------------------------------
@Override
public String toString() {
return String.format("Checkpoint %d @ %d for %s", checkpointID, timestamp, job);
}
}