/*
* Created on 12-Mar-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 com.aelitis.azureus.core.dht;
import java.io.DataInputStream;
import java.io.IOException;
import org.gudy.azureus2.core3.util.HashWrapper;
import com.aelitis.azureus.core.dht.transport.DHTTransportContact;
import com.aelitis.azureus.core.dht.transport.DHTTransportValue;
/**
* @author parg
*
*/
public interface
DHTStorageAdapter
{
// local value operations
/**
* Create a new storage key for a given key
* @return null if the key shouldn't be allocated (e.g.out of space)
*/
public DHTStorageKey
keyCreated(
HashWrapper key,
boolean local );
public void
keyDeleted(
DHTStorageKey adapter_key );
public void
keyRead(
DHTStorageKey adapter_key,
DHTTransportContact contact );
public DHTStorageKeyStats
deserialiseStats(
DataInputStream is )
throws IOException;
public void
valueAdded(
DHTStorageKey key,
DHTTransportValue value );
public void
valueUpdated(
DHTStorageKey key,
DHTTransportValue old_value,
DHTTransportValue new_value );
public void
valueDeleted(
DHTStorageKey key,
DHTTransportValue value );
// local lookup/put operations
public boolean
isDiversified(
byte[] key );
public byte[][]
getExistingDiversification(
byte[] key,
boolean put_operation,
boolean exhaustive_get );
public byte[][]
createNewDiversification(
DHTTransportContact cause,
byte[] key,
boolean put_operation,
byte diversification_type,
boolean exhaustive_get );
public int
getNextValueVersions(
int num );
public DHTStorageBlock
keyBlockRequest(
DHTTransportContact direct_sender,
byte[] request,
byte[] signature );
public DHTStorageBlock
getKeyBlockDetails(
byte[] key );
public DHTStorageBlock[]
getDirectKeyBlocks();
public byte[]
getKeyForKeyBlock(
byte[] request );
public void
setStorageForKey(
String key,
byte[] data );
public byte[]
getStorageForKey(
String key );
}
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