/*
* Created on 18-Feb-2005
* Created by Paul Gardner
* Copyright (C) 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.pluginsimpl.local.ddb;
import org.gudy.azureus2.plugins.ddb.*;
import com.aelitis.azureus.plugins.dht.DHTPlugin;
/**
* @author parg
*
*/
public class
DDBaseValueImpl
implements DistributedDatabaseValue
{
private DDBaseContactImpl contact;
private Object value;
private byte[] value_bytes;
private long creation_time;
private long version;
// we reserve 3 bytes for overflow marker and length encoding for multi-value values
protected static int MAX_VALUE_SIZE = DHTPlugin.MAX_VALUE_SIZE -3;
protected
DDBaseValueImpl(
DDBaseContactImpl _contact,
Object _value,
long _creation_time,
long _version )
throws DistributedDatabaseException
{
contact = _contact;
value = _value;
creation_time = _creation_time;
version = _version;
value_bytes = DDBaseHelpers.encode( value );
// don't police value size limit here as temporary large objects can be
// created when handling transfers
}
protected
DDBaseValueImpl(
DDBaseContactImpl _contact,
byte[] _value_bytes,
long _creation_time,
long _version )
{
contact = _contact;
value_bytes = _value_bytes;
creation_time = _creation_time;
version = _version;
}
public Object
getValue(
Class c )
throws DistributedDatabaseException
{
if ( value == null ){
value = DDBaseHelpers.decode( c, value_bytes );
}
return( value );
}
protected byte[]
getBytes()
{
return( value_bytes );
}
public long
getCreationTime()
{
return( creation_time );
}
public long
getVersion()
{
return( version );
}
public DistributedDatabaseContact
getContact()
{
return( contact );
}
}