/**
* 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.hadoop.hdfs;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.hadoop.io.Writable;
public class AvatarFailoverSnapshot implements Writable {
private final OpenFilesInfo openFilesInfo;
private final List<FileStatusExtended> sampledFiles;
public AvatarFailoverSnapshot(OpenFilesInfo openFilesInfo,
List<FileStatusExtended> sampledFiles) {
this.openFilesInfo = openFilesInfo;
this.sampledFiles = (sampledFiles != null) ? sampledFiles
: new ArrayList<FileStatusExtended>();
}
public AvatarFailoverSnapshot() {
openFilesInfo = new OpenFilesInfo();
sampledFiles = new ArrayList<FileStatusExtended>();
}
public OpenFilesInfo getOpenFilesInfo() {
return openFilesInfo;
}
public List<FileStatusExtended> getSampledFiles() {
return sampledFiles;
}
@Override
public void write(DataOutput out) throws IOException {
openFilesInfo.write(out);
out.writeInt(sampledFiles.size());
for (FileStatusExtended stat : sampledFiles) {
stat.write(out);
}
}
@Override
public void readFields(DataInput in) throws IOException {
openFilesInfo.readFields(in);
int nFiles = in.readInt();
for (int i = 0; i < nFiles; i++) {
FileStatusExtended stat = new FileStatusExtended();
stat.readFields(in);
sampledFiles.add(stat);
}
}
}