org.jivesoftware.smackx.workgroup.packet.QueueDetails 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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/**
 * $Revision$
 * $Date$
 *
 * 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.workgroup.packet;

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

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;

/**
 * Queue details packet extension, which contains details about the users
 * currently in a queue.
 */
public class QueueDetails implements PacketExtension {

    /**
     * Element name of the packet extension.
     */
    public static final String ELEMENT_NAME = "notify-queue-details";

    /**
     * Namespace of the packet extension.
     */
    public static final String NAMESPACE = "http://jabber.org/protocol/workgroup";

    private static final String DATE_FORMAT = "yyyyMMdd'T'HH:mm:ss";

    private SimpleDateFormat dateFormat = new SimpleDateFormat(DATE_FORMAT);
    /**
     * The list of users in the queue.
     */
    private Set users;

    /**
     * Creates a new QueueDetails packet
     */
    private QueueDetails() {
        users = new HashSet();
    }

    /**
     * Returns the number of users currently in the queue that are waiting to
     * be routed to an agent.
     *
     * @return the number of users in the queue.
     */
    public int getUserCount() {
        return users.size();
    }

    /**
     * Returns the set of users in the queue that are waiting to
     * be routed to an agent (as QueueUser objects).
     *
     * @return a Set for the users waiting in a queue.
     */
    public Set getUsers() {
        synchronized (users) {
            return users;
        }
    }

    /**
     * Adds a user to the packet.
     *
     * @param user the user.
     */
    private void addUser(QueueUser user) {
        synchronized (users) {
            users.add(user);
        }
    }

    public String getElementName() {
        return ELEMENT_NAME;
    }

    public String getNamespace() {
        return NAMESPACE;
    }

    public String toXML() {
        StringBuilder buf = new StringBuilder();
        buf.append("<").append(ELEMENT_NAME).append(" xmlns=\"").append(NAMESPACE).append("\">");

        synchronized (users) {
            for (Iterator i=users.iterator(); i.hasNext(); ) {
                QueueUser user = (QueueUser)i.next();
                int position = user.getQueuePosition();
                int timeRemaining = user.getEstimatedRemainingTime();
                Date timestamp = user.getQueueJoinTimestamp();

                buf.append("");

                if (position != -1) {
                    buf.append("").append(position).append("");
                }

                if (timeRemaining != -1) {
                    buf.append("").append(timeRemaining).append("");
                }

                if (timestamp != null) {
                    buf.append("");
                    buf.append(dateFormat.format(timestamp));
                    buf.append("");
                }

                buf.append("");
            }
        }
        buf.append("");
        return buf.toString();
    }

    /**
     * Provider class for QueueDetails packet extensions.
     */
    public static class Provider implements PacketExtensionProvider {
        
        public PacketExtension parseExtension(XmlPullParser parser) throws Exception {
            
            SimpleDateFormat dateFormat = new SimpleDateFormat(DATE_FORMAT);
            QueueDetails queueDetails = new QueueDetails();

            int eventType = parser.getEventType();
            while (eventType != XmlPullParser.END_TAG &&
                    "notify-queue-details".equals(parser.getName()))
            {
                eventType = parser.next();
                while ((eventType == XmlPullParser.START_TAG) && "user".equals(parser.getName())) {
                    String uid = null;
                    int position = -1;
                    int time = -1;
                    Date joinTime = null;

                    uid = parser.getAttributeValue("", "jid");
               
                    if (uid == null) {
                        // throw exception
                    }

                    eventType = parser.next();
                    while ((eventType != XmlPullParser.END_TAG)
                                || (! "user".equals(parser.getName())))
                    {                        
                        if ("position".equals(parser.getName())) {
                            position = Integer.parseInt(parser.nextText());
                        }
                        else if ("time".equals(parser.getName())) {
                            time = Integer.parseInt(parser.nextText());
                        }
                        else if ("join-time".equals(parser.getName())) {
                            joinTime = dateFormat.parse(parser.nextText());                            
                        }
                        else if( parser.getName().equals( "waitTime" ) ) {
                            Date wait = dateFormat.parse(parser.nextText());
                            System.out.println( wait );
                        }

                        eventType = parser.next();

                        if (eventType != XmlPullParser.END_TAG) {
                            // throw exception
                        }
                    }

                    queueDetails.addUser(new QueueUser(uid, position, time, joinTime));

                    eventType = parser.next();
                }
            }
            return queueDetails;
        }
    }
}