org.testifyproject.tukaani.xz.check.CRC32 Maven / Gradle / Ivy
/*
* CRC32
*
* Author: Lasse Collin
*
* This file has been put into the public domain.
* You can do whatever you want with this file.
*/
package org.testifyproject.tukaani.xz.check;
public class CRC32 extends Check {
private final java.util.zip.CRC32 state = new java.util.zip.CRC32();
public CRC32() {
size = 4;
name = "CRC32";
}
public void update(byte[] buf, int off, int len) {
state.update(buf, off, len);
}
public byte[] finish() {
long value = state.getValue();
byte[] buf = new byte[] { (byte)(value),
(byte)(value >>> 8),
(byte)(value >>> 16),
(byte)(value >>> 24) };
state.reset();
return buf;
}
}