org.apache.flink.runtime.state.filesystem.FsCompletedCheckpointStorageLocation 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.filesystem;
import org.apache.flink.core.fs.FileSystem;
import org.apache.flink.core.fs.Path;
import org.apache.flink.runtime.state.CompletedCheckpointStorageLocation;
import java.io.IOException;
/**
* A {@link CompletedCheckpointStorageLocation} that resides on a file system.
* This locattion is internally represented through the checkpoint directory plus the metadata file.
*/
public class FsCompletedCheckpointStorageLocation implements CompletedCheckpointStorageLocation {
private static final long serialVersionUID = 1L;
private final Path exclusiveCheckpointDir;
private final FileStateHandle metadataFileHandle;
private final String externalPointer;
private transient FileSystem fs;
public FsCompletedCheckpointStorageLocation(
FileSystem fs,
Path exclusiveCheckpointDir,
FileStateHandle metadataFileHandle,
String externalPointer) {
this.fs = fs;
this.exclusiveCheckpointDir = exclusiveCheckpointDir;
this.metadataFileHandle = metadataFileHandle;
this.externalPointer = externalPointer;
}
@Override
public String getExternalPointer() {
return externalPointer;
}
@Override
public FileStateHandle getMetadataHandle() {
return metadataFileHandle;
}
@Override
public void disposeStorageLocation() throws IOException {
if (fs == null) {
fs = exclusiveCheckpointDir.getFileSystem();
}
fs.delete(exclusiveCheckpointDir, false);
}
}