/*
* ((e)) emite: A pure Google Web Toolkit XMPP library
* Copyright (c) 2008-2011 The Emite development team
*
* This file is part of Emite.
*
* Emite is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3
* of the License, or (at your option) any later version.
*
* Emite 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Emite. If not, see <http://www.gnu.org/licenses/>.
*/
package com.calclab.emite.xep.delay;
import java.util.Date;
import javax.annotation.Nullable;
import com.calclab.emite.base.util.XmppDateTime;
import com.calclab.emite.base.xml.XMLPacket;
import com.calclab.emite.core.XmppNamespaces;
import com.calclab.emite.core.stanzas.Stanza;
/**
* Helper methods for obtaining delay information from stanzas.
*/
public final class DelayHelper {
/**
* Get delay stamp from stanza.
*
* @param stanza
* the stanza to get the delay from
* @return the date stamp if present, {@code null} otherwise
*/
@Nullable
public static final Date getDelayStamp(final Stanza stanza) {
XMLPacket x = stanza.getExtension("delay", XmppNamespaces.DELAY);
if (x != null)
return XmppDateTime.parseXMPPDateTime(x.getAttribute("stamp"));
x = stanza.getExtension("x", XmppNamespaces.DELAY_LEGACY);
if (x != null)
return XmppDateTime.parseLegacyFormatXMPPDateTime(x.getAttribute("stamp"));
return null;
}
private DelayHelper() {
}
}