org.apache.flink.runtime.state.gemini.engine.snapshot.SnapshotMetaStage 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.state.gemini.engine.snapshot;
/**
* A snapshot stage to write meta data.
*/
public class SnapshotMetaStage implements SnapshotStage {
private SnapshotCompletableFuture completableFuture;
private SnapshotOperation snapshotOperation;
public SnapshotMetaStage(
SnapshotCompletableFuture completableFuture,
SnapshotOperation snapshotOperation) {
this.completableFuture = completableFuture;
this.snapshotOperation = snapshotOperation;
}
@Override
public boolean isAsync() {
return true;
}
@Override
public void run() {
completableFuture.incRunningTask();
try {
DBSnapshotResult dbSnapshotResult = snapshotOperation.getSnapshotResult();
completableFuture.getPendingSnapshot().setDbSnapshotResult(dbSnapshotResult);
} catch (Throwable throwable) {
completableFuture.completeExceptionally(throwable);
} finally {
completableFuture.decRunningTask();
}
}
@Override
public String toString() {
return "SnapshotMetaStage";
}
}