/*
* 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.KADEMLIA2_HELLO_RES;
import java.util.LinkedList;
import java.util.List;
import org.jmule.core.JMException;
import org.jmule.core.edonkey.packet.tag.TagList;
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 8, 2009
* @author binary256
* @version $Revision: 1.13 $
* Last changed by $Author: binary255 $ on $Date: 2010/01/13 18:42:15 $
*/
public class KeywordSearchTask extends SearchTask {
private LookupTask lookup_task = null;
private String searchKeyword = "";
private List<KadContact> used_contacts = new LinkedList<KadContact>();
public KeywordSearchTask(Int128 searchID) {
super(searchID);
}
public String getKeyword() {
return searchKeyword;
}
public void setSearchKeyword(String searchKeyword) {
this.searchKeyword = searchKeyword;
}
public void startSearch() {
isStarted = true;
lookup_task = new LookupTask(RequestType.FIND_VALUE, searchID, JKadConstants.toleranceZone) {
public void lookupTimeout() {}
public void processToleranceContacts(ContactAddress sender,
List<KadContact> results) {
for(KadContact contact : results) {
used_contacts.add(contact);
KadPacket hello;
try {
hello = PacketFactory.getHello2ReqPacket(TagList.EMPTY_TAG_LIST);
_network_manager.sendKadPacket(hello, contact.getIPAddress(), contact.getUDPPort());
} catch (JMException e) {
e.printStackTrace();
}
PacketListener listener = new PacketListener(KADEMLIA2_HELLO_RES, contact.getContactAddress().getAsInetSocketAddress()) {
public void packetReceived(KadPacket packet) {
KadPacket responsePacket = PacketFactory.getSearchReqPacket(searchID,false);
_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_KEYWORD_TIMEOUT);
Lookup.getSingleton().addLookupTask(lookup_task);
if (listener!=null)
listener.searchStarted();
}
public void stopSearch() {
if (!isStarted) return;
isStarted = false;
Lookup.getSingleton().removeLookupTask(searchID);
if (listener!=null)
listener.searchFinished();
Search.getSingleton().removeSearchID(searchID);
}
}