/*
* Created on 22 juil. 2003
*
* Copyright (C) 2003, 2004, 2005, 2006 Aelitis, All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* AELITIS, SAS au capital de 46,603.30 euros
* 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
*/
package org.gudy.azureus2.core3.util;
import java.util.Arrays;
import org.gudy.azureus2.plugins.utils.ByteArrayWrapper;
/**
* @author Olivier
*
*/
public class
HashWrapper
implements ByteArrayWrapper
{
private byte[] hash;
private int hash_code;
public HashWrapper(byte[] _hash)
{
this(_hash,0,_hash.length);
}
public HashWrapper(byte[] _hash, int offset,int length)
{
hash = new byte[length];
System.arraycopy(_hash,offset,hash,0,length);
for (int i = 0; i < length; i++) {
hash_code = 31*hash_code + hash[i];
}
}
public boolean equals(Object o) {
if(! (o instanceof HashWrapper))
return false;
byte[] otherHash = ((HashWrapper)o).getHash();
return Arrays.equals(hash, otherHash);
}
public byte[]
getHash()
{
return( hash );
}
public byte[]
getBytes()
{
return( hash );
}
/* (non-Javadoc)
* @see java.lang.Object#hashCode()
*/
public int hashCode()
{
return( hash_code );
}
public String toBase32String() {
return Base32.encode(hash);
}
}
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