Package org.jmule.core.jkad.search

Source Code of org.jmule.core.jkad.search.NoteSearchTask

/*
*  JMule - Java file sharing client
*  Copyright (C) 2007-2009 JMule Team ( jmule@jmule.org / http://jmule.org )
*
*  Any parts of this program derived from other projects, or contributed
*  by third-party developers are copyrighted by their respective authors.
*
*  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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*
*/
package org.jmule.core.jkad.search;

import static org.jmule.core.jkad.JKadConstants.KADEMLIA_HELLO_RES;

import java.util.List;

import org.jmule.core.JMException;
import org.jmule.core.jkad.ContactAddress;
import org.jmule.core.jkad.IPAddress;
import org.jmule.core.jkad.Int128;
import org.jmule.core.jkad.JKadConstants;
import org.jmule.core.jkad.PacketListener;
import org.jmule.core.jkad.JKadConstants.RequestType;
import org.jmule.core.jkad.lookup.Lookup;
import org.jmule.core.jkad.lookup.LookupTask;
import org.jmule.core.jkad.packet.KadPacket;
import org.jmule.core.jkad.packet.PacketFactory;
import org.jmule.core.jkad.routingtable.KadContact;


/**
* Created on Jan 16, 2009
* @author binary256
* @version $Revision: 1.9 $
* Last changed by $Author: binary255 $ on $Date: 2010/01/13 18:42:15 $
*/
public class NoteSearchTask extends SearchTask {

  private LookupTask lookup_task = null;
 
  public NoteSearchTask(Int128 searchID) {
    super(searchID);
   
  }

  public void startSearch() {
    isStarted = true;
     
    lookup_task = new LookupTask(RequestType.FIND_VALUE, searchID, JKadConstants.toleranceZone) {
      public void lookupTimeout() {
        isStarted = false;
      }

      public void processToleranceContacts(ContactAddress sender,
          List<KadContact> results) {
       
        for(KadContact contact : results) {
          KadPacket packet;
          try {
            packet = PacketFactory.getHello1ReqPacket();
            _network_manager.sendKadPacket(packet, contact.getIPAddress(), contact.getUDPPort());
          } catch (JMException e) {
            e.printStackTrace();
          }
         
         
          PacketListener listener = new PacketListener(KADEMLIA_HELLO_RES, contact.getContactAddress().getAsInetSocketAddress()) {
            public void packetReceived(KadPacket packet) {
              KadPacket responsePacket = PacketFactory.getNotesReq(searchID);
              _network_manager.sendKadPacket(responsePacket, new IPAddress(packet.getAddress()), packet.getAddress().getPort());
              _jkad_manager.removePacketListener(this);
            }
          };
          _jkad_manager.addPacketListener(listener);
        }
      }
     
      public void stopLookupEvent() {
        stopSearch();
      }
     
    };
    lookup_task.setTimeOut(JKadConstants.SEARCH_NOTES_TIMEOUT);
    Lookup.getSingleton().addLookupTask(lookup_task);
    if (listener!=null)
      listener.searchStarted();
  }

  public void stopSearch() {
    if (!isStarted) return;
    isStarted = false;
    if (listener!=null)
      listener.searchFinished();
    Lookup.getSingleton().removeLookupTask(searchID);
    Search.getSingleton().removeSearchID(searchID);
  }

}
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