/**
* 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.server.common;
/**
* Common class for storage information.
*
* TODO namespaceID should be long and computed as hash(address + port)
*/
public class StorageInfo {
public int layoutVersion; // Version read from the stored file.
public int namespaceID; // namespace id of the storage
public long cTime; // creation timestamp
public StorageInfo () {
this(0, 0, 0L);
}
public StorageInfo(int layoutV, int nsID, long cT) {
layoutVersion = layoutV;
namespaceID = nsID;
cTime = cT;
}
public StorageInfo(StorageInfo from) {
setStorageInfo(from);
}
public int getLayoutVersion(){ return layoutVersion; }
public int getNamespaceID() { return namespaceID; }
public long getCTime() { return cTime; }
public void setStorageInfo(StorageInfo from) {
layoutVersion = from.layoutVersion;
namespaceID = from.namespaceID;
cTime = from.cTime;
}
}