102 lines
3.3 KiB
Java
102 lines
3.3 KiB
Java
/**
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*
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* Copyright © 2014 Florian Schmaus
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smackx.delay;
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import java.util.Date;
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import org.jivesoftware.smack.packet.Stanza;
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import org.jivesoftware.smack.packet.ExtensionElement;
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import org.jivesoftware.smackx.delay.packet.DelayInformation;
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/**
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* Delayed Delivery (XEP-203).
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*
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* @author Florian Schmaus
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* @see <a href="http://xmpp.org/extensions/xep-0203.html">Delayed Delivery (XEP-203)</a>
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*
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*/
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public class DelayInformationManager {
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public static final String LEGACY_DELAYED_DELIVERY_NAMESPACE = "jabber:x:delay";
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public static final String LEGACY_DELAYED_DELIVERY_ELEMENT = "x";
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/**
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* Get Delayed Delivery information as defined in XEP-203
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* <p>
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* Prefer {@link #getDelayInformation(Stanza)} over this method for backwards compatibility.
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* </p>
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* @param packet
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* @return the Delayed Delivery information or <code>null</code>
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*/
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public static DelayInformation getXep203DelayInformation(Stanza packet) {
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return DelayInformation.from(packet);
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}
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/**
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* Get Delayed Delivery information as defined in XEP-91
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* <p>
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* Prefer {@link #getDelayInformation(Stanza)} over this method for backwards compatibility.
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* </p>
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* @param packet
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* @return the Delayed Delivery information or <code>null</code>
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*/
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public static DelayInformation getLegacyDelayInformation(Stanza packet) {
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return packet.getExtension(LEGACY_DELAYED_DELIVERY_ELEMENT, LEGACY_DELAYED_DELIVERY_NAMESPACE);
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}
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/**
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* Get Delayed Delivery information. This method first looks for a PacketExtension with the
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* XEP-203 namespace and falls back to the XEP-91 namespace.
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*
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* @param packet
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* @return the Delayed Delivery information or <code>null</code>
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*/
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public static DelayInformation getDelayInformation(Stanza packet) {
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DelayInformation delayInformation = getXep203DelayInformation(packet);
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if (delayInformation != null) {
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return delayInformation;
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}
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return getLegacyDelayInformation(packet);
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}
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/**
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* Get the Delayed Delivery timestamp or <code>null</code>.
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*
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* @param packet
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* @return the Delayed Delivery timestamp or <code>null</code>
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*/
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public static Date getDelayTimestamp(Stanza packet) {
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DelayInformation delayInformation = getDelayInformation(packet);
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if (delayInformation == null) {
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return null;
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}
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return delayInformation.getStamp();
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}
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/**
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* Check if the given stanza is a delayed stanza as of XEP-203.
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*
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* @param packet
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* @return true if the stanza got delayed.
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*/
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public static boolean isDelayedStanza(Stanza packet) {
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ExtensionElement packetExtension = getDelayInformation(packet);
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return packetExtension != null;
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}
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}
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