/*
* Copyright 2008-2009 LinkedIn, Inc
*
* Licensed 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 voldemort.store.readonly.checksum;
import java.util.zip.Adler32;
import voldemort.utils.ByteUtils;
public class Adler32CheckSum extends CheckSum {
private Adler32 checkSumGenerator = null;
public Adler32CheckSum() {
checkSumGenerator = new Adler32();
}
@Override
public byte[] getCheckSum() {
byte[] returnedCheckSum = new byte[ByteUtils.SIZE_OF_LONG];
ByteUtils.writeLong(returnedCheckSum, checkSumGenerator.getValue(), 0);
checkSumGenerator.reset();
return returnedCheckSum;
}
@Override
public void update(byte[] input, int startIndex, int length) {
checkSumGenerator.update(input, startIndex, length);
}
@Override
public void reset() {
checkSumGenerator.reset();
}
}