/*
* 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.time;
import rocks.xmpp.core.Jid;
import rocks.xmpp.core.XmppException;
import rocks.xmpp.core.session.ExtensionManager;
import rocks.xmpp.core.session.XmppSession;
import rocks.xmpp.core.stanza.IQEvent;
import rocks.xmpp.core.stanza.IQListener;
import rocks.xmpp.core.stanza.model.client.IQ;
import rocks.xmpp.extensions.time.model.EntityTime;
import java.util.Date;
import java.util.TimeZone;
/**
* This manager implements <a href="http://xmpp.org/extensions/xep-0202.html">XEP-0202: Entity Time</a>.
* <p>
* It automatically responds to entity time requests, with the system's current date and timezone information and allows to retrieve another entity's time.
* </p>
*
* @author Christian Schudt
*/
public final class EntityTimeManager extends ExtensionManager {
private EntityTimeManager(final XmppSession xmppSession) {
super(xmppSession, EntityTime.NAMESPACE);
xmppSession.addIQListener(new IQListener() {
@Override
public void handle(IQEvent e) {
IQ iq = e.getIQ();
if (e.isIncoming() && isEnabled() && !e.isConsumed() && iq.getType() == IQ.Type.GET && iq.getExtension(EntityTime.class) != null) {
IQ result = iq.createResult();
result.setExtension(new EntityTime(TimeZone.getDefault(), new Date()));
xmppSession.send(result);
e.consume();
}
}
});
setEnabled(true);
}
/**
* Gets the time information (e.g. time zone) of another XMPP entity.
*
* @param jid The entity's JID.
* @return The entity time or null if this protocol is not supported by the entity.
* @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 EntityTime getEntityTime(Jid jid) throws XmppException {
IQ result = xmppSession.query(new IQ(jid, IQ.Type.GET, new EntityTime()));
return result.getExtension(EntityTime.class);
}
}