MatchResource.java

/*
* Tigase Jabber/XMPP Server
* Copyright (C) 2004-2012 "Artur Hefczyc" <artur.hefczyc@tigase.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, version 3 of the License.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. Look for COPYING file in the top folder.
* If not, see http://www.gnu.org/licenses/.
*
* $Rev$
* Last modified by $Author$
* $Date$
 */
package tigase.server.amp.cond;

//~--- non-JDK imports --------------------------------------------------------

import tigase.server.Packet;
import tigase.server.amp.ConditionIfc;

import tigase.xml.Element;

//~--- JDK imports ------------------------------------------------------------

import java.util.Map;
import java.util.logging.Logger;

//~--- classes ----------------------------------------------------------------

/**
 * Created: Apr 27, 2010 5:36:54 PM
 *
 * @author <a href="mailto:artur.hefczyc@tigase.org">Artur Hefczyc</a>
 * @version $Rev$
 */
public class MatchResource implements ConditionIfc {

	/**
	 * Private logger for class instances.
	 */
	private static Logger log = Logger.getLogger(MatchResource.class.getName());
	private static final String name = "match-resource";

	//~--- constant enums -------------------------------------------------------

	private enum MatchValue { any, exact, other; }

	//~--- get methods ----------------------------------------------------------

	/**
	 * Method description
	 *
	 *
	 * @return
	 */
	@Override
	public String getName() {
		return name;
	}

	//~--- methods --------------------------------------------------------------

	/**
	 * Method description
	 *
	 *
	 *
	 * @param packet
	 * @param rule
	 *
	 * @return
	 */
	@Override
	public boolean match(Packet packet, Element rule) {
		String value = rule.getAttribute("value");
		boolean result = false;

		if (value != null) {
			try {
				MatchValue m_val = MatchValue.valueOf(value);
				String jid_resource = (packet.getStanzaTo() != null)
					? packet.getStanzaTo().getResource() : null;
				String target_resource = packet.getAttribute(TO_RES);

				switch (m_val) {
					case any :
						result = true;

						break;

					case other :
						result = (jid_resource != null) && (target_resource != null)
								&&!jid_resource.equals(target_resource);

						break;

					case exact :
						result = (jid_resource != null) && jid_resource.equals(target_resource);

						break;
				}
			} catch (Exception e) {
				log.info("Incorrect " + name + " condition value for rule: " + rule);
			}
		} else {
			log.info("No value set for rule: " + rule);
		}

		return result;
	}
}


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