org.jivesoftware.smackx.packet.OfflineMessageInfo Maven / Gradle / Ivy

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Smack is an Open Source XMPP (Jabber) client library for instant messaging and presence. This library provides the client side functionality as specified in the core XMPP specifications as related to the client side of said specifications.
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/**
 * $RCSfile$
 * $Revision: 7071 $
 * $Date: 2007-02-11 18:59:05 -0600 (Sun, 11 Feb 2007) $
 *
 * Copyright 2003-2007 Jive Software.
 *
 * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.jivesoftware.smackx.packet;

import org.jivesoftware.smack.packet.PacketExtension;
import org.jivesoftware.smack.provider.PacketExtensionProvider;
import org.xmlpull.v1.XmlPullParser;

/**
 * OfflineMessageInfo is an extension included in the retrieved offline messages requested by
 * the {@link org.jivesoftware.smackx.OfflineMessageManager}. This extension includes a stamp
 * that uniquely identifies the offline message. This stamp may be used for deleting the offline
 * message. The stamp may be of the form UTC timestamps but it is not required to have that format.
 *
 * @author Gaston Dombiak
 */
public class OfflineMessageInfo implements PacketExtension {

    private String node = null;

    /**
    * Returns the XML element name of the extension sub-packet root element.
    * Always returns "offline"
    *
    * @return the XML element name of the packet extension.
    */
    public String getElementName() {
        return "offline";
    }

    /**
     * Returns the XML namespace of the extension sub-packet root element.
     * According the specification the namespace is always "http://jabber.org/protocol/offline"
     *
     * @return the XML namespace of the packet extension.
     */
    public String getNamespace() {
        return "http://jabber.org/protocol/offline";
    }

    /**
     * Returns the stamp that uniquely identifies the offline message. This stamp may
     * be used for deleting the offline message. The stamp may be of the form UTC timestamps
     * but it is not required to have that format.
     *
     * @return the stamp that uniquely identifies the offline message.
     */
    public String getNode() {
        return node;
    }

    /**
     * Sets the stamp that uniquely identifies the offline message. This stamp may
     * be used for deleting the offline message. The stamp may be of the form UTC timestamps
     * but it is not required to have that format.
     *
     * @param node the stamp that uniquely identifies the offline message.
     */
    public void setNode(String node) {
        this.node = node;
    }

    public String toXML() {
        StringBuilder buf = new StringBuilder();
        buf.append("<").append(getElementName()).append(" xmlns=\"").append(getNamespace()).append(
            "\">");
        if (getNode() != null)
            buf.append("");
        buf.append("");
        return buf.toString();
    }

    public static class Provider implements PacketExtensionProvider {

        /**
         * Creates a new Provider.
         * ProviderManager requires that every PacketExtensionProvider has a public,
         * no-argument constructor
         */
        public Provider() {
        }

        /**
         * Parses a OfflineMessageInfo packet (extension sub-packet).
         *
         * @param parser the XML parser, positioned at the starting element of the extension.
         * @return a PacketExtension.
         * @throws Exception if a parsing error occurs.
         */
        public PacketExtension parseExtension(XmlPullParser parser)
            throws Exception {
            OfflineMessageInfo info = new OfflineMessageInfo();
            boolean done = false;
            while (!done) {
                int eventType = parser.next();
                if (eventType == XmlPullParser.START_TAG) {
                    if (parser.getName().equals("item"))
                        info.setNode(parser.getAttributeValue("", "node"));
                } else if (eventType == XmlPullParser.END_TAG) {
                    if (parser.getName().equals("offline")) {
                        done = true;
                    }
                }
            }

            return info;
        }

    }
}