001/**
002 *
003 * Copyright 2003-2007 Jive Software.
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 *     http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017
018package org.jivesoftware.smackx.workgroup.packet;
019
020import java.io.IOException;
021import java.text.ParseException;
022import java.text.SimpleDateFormat;
023import java.util.ArrayList;
024import java.util.Date;
025import java.util.List;
026import java.util.TimeZone;
027
028import org.jivesoftware.smack.packet.IqData;
029import org.jivesoftware.smack.packet.XmlEnvironment;
030import org.jivesoftware.smack.provider.IqProvider;
031import org.jivesoftware.smack.util.ParserUtils;
032import org.jivesoftware.smack.xml.XmlPullParser;
033import org.jivesoftware.smack.xml.XmlPullParserException;
034
035import org.jxmpp.jid.Jid;
036
037/**
038 * An IQProvider for transcripts summaries.
039 *
040 * @author Gaston Dombiak
041 */
042public class TranscriptsProvider extends IqProvider<Transcripts> {
043
044    @SuppressWarnings("DateFormatConstant")
045    private static final SimpleDateFormat UTC_FORMAT = new SimpleDateFormat("yyyyMMdd'T'HH:mm:ss");
046    static {
047        UTC_FORMAT.setTimeZone(TimeZone.getTimeZone("GMT+0"));
048    }
049
050    @Override
051    public Transcripts parse(XmlPullParser parser, int initialDepth, IqData iqData, XmlEnvironment xmlEnvironment)
052                    throws XmlPullParserException, IOException, TextParseException, ParseException {
053        Jid userID = ParserUtils.getJidAttribute(parser, "userID");
054        List<Transcripts.TranscriptSummary> summaries = new ArrayList<>();
055
056        boolean done = false;
057        while (!done) {
058            XmlPullParser.Event eventType = parser.next();
059            if (eventType == XmlPullParser.Event.START_ELEMENT) {
060                if (parser.getName().equals("transcript")) {
061                    Transcripts.TranscriptSummary summary = parseSummary(parser);
062                    summaries.add(summary);
063                }
064            }
065            else if (eventType == XmlPullParser.Event.END_ELEMENT) {
066                if (parser.getName().equals("transcripts")) {
067                    done = true;
068                }
069            }
070        }
071
072        return new Transcripts(userID, summaries);
073    }
074
075    private static Transcripts.TranscriptSummary parseSummary(XmlPullParser parser)
076                    throws IOException, XmlPullParserException, ParseException {
077        String sessionID =  parser.getAttributeValue("", "sessionID");
078        Date joinTime = null;
079        Date leftTime = null;
080        List<Transcripts.AgentDetail> agents = new ArrayList<>();
081
082        boolean done = false;
083        while (!done) {
084            XmlPullParser.Event eventType = parser.next();
085            if (eventType == XmlPullParser.Event.START_ELEMENT) {
086                if (parser.getName().equals("joinTime")) {
087                    synchronized (UTC_FORMAT) {
088                        joinTime = UTC_FORMAT.parse(parser.nextText());
089                     }
090                }
091                else if (parser.getName().equals("leftTime")) {
092                    synchronized (UTC_FORMAT) {
093                        leftTime = UTC_FORMAT.parse(parser.nextText());
094                    }
095                }
096                else if (parser.getName().equals("agents")) {
097                    agents = parseAgents(parser);
098                }
099            }
100            else if (eventType == XmlPullParser.Event.END_ELEMENT) {
101                if (parser.getName().equals("transcript")) {
102                    done = true;
103                }
104            }
105        }
106
107        return new Transcripts.TranscriptSummary(sessionID, joinTime, leftTime, agents);
108    }
109
110    private static List<Transcripts.AgentDetail> parseAgents(XmlPullParser parser)
111                    throws IOException, XmlPullParserException, ParseException {
112        List<Transcripts.AgentDetail> agents = new ArrayList<>();
113        String agentJID =  null;
114        Date joinTime = null;
115        Date leftTime = null;
116
117        boolean done = false;
118        while (!done) {
119            XmlPullParser.Event eventType = parser.next();
120            if (eventType == XmlPullParser.Event.START_ELEMENT) {
121                if (parser.getName().equals("agentJID")) {
122                    agentJID = parser.nextText();
123                }
124                else if (parser.getName().equals("joinTime")) {
125                    synchronized (UTC_FORMAT) {
126                        joinTime = UTC_FORMAT.parse(parser.nextText());
127                    }
128                }
129                else if (parser.getName().equals("leftTime")) {
130                    synchronized (UTC_FORMAT) {
131                        leftTime = UTC_FORMAT.parse(parser.nextText());
132                    }
133                }
134                else if (parser.getName().equals("agent")) {
135                    agentJID =  null;
136                    joinTime = null;
137                    leftTime = null;
138                }
139            }
140            else if (eventType == XmlPullParser.Event.END_ELEMENT) {
141                if (parser.getName().equals("agents")) {
142                    done = true;
143                }
144                else if (parser.getName().equals("agent")) {
145                    agents.add(new Transcripts.AgentDetail(agentJID, joinTime, leftTime));
146                }
147            }
148        }
149        return agents;
150    }
151}