/*
* The MIT License (MIT)
*
* Copyright (c) 2014 Christian Schudt
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package rocks.xmpp.extensions.geoloc;
import rocks.xmpp.core.XmppException;
import rocks.xmpp.core.session.ExtensionManager;
import rocks.xmpp.core.session.SessionStatusEvent;
import rocks.xmpp.core.session.SessionStatusListener;
import rocks.xmpp.core.session.XmppSession;
import rocks.xmpp.core.stanza.MessageEvent;
import rocks.xmpp.core.stanza.MessageListener;
import rocks.xmpp.core.stanza.model.client.Message;
import rocks.xmpp.extensions.geoloc.model.GeoLocation;
import rocks.xmpp.extensions.pubsub.PubSubManager;
import rocks.xmpp.extensions.pubsub.PubSubService;
import rocks.xmpp.extensions.pubsub.model.Item;
import rocks.xmpp.extensions.pubsub.model.event.Event;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArraySet;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Manages the publishing of user location and the notification of it.
*
* @author Christian Schudt
* @see <a href="http://xmpp.org/extensions/xep-0080.html">XEP-0080: User Location</a>
*/
public final class GeoLocationManager extends ExtensionManager {
private static final Logger logger = Logger.getLogger(GeoLocationManager.class.getName());
private final Set<GeoLocationListener> geoLocationListeners = new CopyOnWriteArraySet<>();
private GeoLocationManager(XmppSession xmppSession) {
super(xmppSession, GeoLocation.NAMESPACE, GeoLocation.NAMESPACE + "+notify");
xmppSession.addSessionStatusListener(new SessionStatusListener() {
@Override
public void sessionStatusChanged(SessionStatusEvent e) {
if (e.getStatus() == XmppSession.Status.CLOSED) {
geoLocationListeners.clear();
}
}
});
xmppSession.addMessageListener(new MessageListener() {
@Override
public void handle(MessageEvent e) {
if (e.isIncoming() && isEnabled()) {
Message message = e.getMessage();
Event event = message.getExtension(Event.class);
if (event != null) {
for (Item item : event.getItems()) {
Object payload = item.getPayload();
if (payload instanceof GeoLocation) {
// Notify the listeners about the reception.
for (GeoLocationListener geoLocationListener : geoLocationListeners) {
try {
geoLocationListener.geoLocationUpdated(new GeoLocationEvent(GeoLocationManager.this, (GeoLocation) payload, message.getFrom()));
} catch (Exception ex) {
logger.log(Level.WARNING, ex.getMessage(), ex);
}
}
}
}
}
}
}
});
}
/**
* Publishes a geo location to the personal eventing service.
*
* @param geoLocation The geo location.
* @throws rocks.xmpp.core.stanza.model.StanzaException If the entity returned a stanza error.
* @throws rocks.xmpp.core.session.NoResponseException If the entity did not respond.
*/
public void publish(GeoLocation geoLocation) throws XmppException {
PubSubService pepService = xmppSession.getExtensionManager(PubSubManager.class).createPersonalEventingService();
pepService.getNode(GeoLocation.NAMESPACE).publish(geoLocation);
}
/**
* Adds a listener, which allows to listen for geo location changes.
*
* @param geoLocationListener The listener.
* @see #removeGeoLocationListener(GeoLocationListener)
*/
public void addGeoLocationListener(GeoLocationListener geoLocationListener) {
geoLocationListeners.add(geoLocationListener);
}
/**
* Removes a previously added geo location listener.
*
* @param geoLocationListener The listener.
* @see #addGeoLocationListener(GeoLocationListener)
*/
public void removeGeoLocationListener(GeoLocationListener geoLocationListener) {
geoLocationListeners.remove(geoLocationListener);
}
}