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 org.jivesoftware.smack.provider.IQProvider;
021import org.jivesoftware.smack.util.ParserUtils;
022import org.jxmpp.jid.Jid;
023import org.xmlpull.v1.XmlPullParser;
024import org.xmlpull.v1.XmlPullParserException;
025
026import java.io.IOException;
027import java.text.ParseException;
028import java.text.SimpleDateFormat;
029import java.util.ArrayList;
030import java.util.Date;
031import java.util.List;
032import java.util.TimeZone;
033
034/**
035 * An IQProvider for transcripts summaries.
036 *
037 * @author Gaston Dombiak
038 */
039public class TranscriptsProvider extends IQProvider<Transcripts> {
040
041    private static final SimpleDateFormat UTC_FORMAT = new SimpleDateFormat("yyyyMMdd'T'HH:mm:ss");
042    static {
043        UTC_FORMAT.setTimeZone(TimeZone.getTimeZone("GMT+0"));
044    }
045
046    @Override
047    public Transcripts parse(XmlPullParser parser, int initialDepth) throws XmlPullParserException, IOException {
048        Jid userID = ParserUtils.getJidAttribute(parser, "userID");
049        List<Transcripts.TranscriptSummary> summaries = new ArrayList<Transcripts.TranscriptSummary>();
050
051        boolean done = false;
052        while (!done) {
053            int eventType = parser.next();
054            if (eventType == XmlPullParser.START_TAG) {
055                if (parser.getName().equals("transcript")) {
056                    summaries.add(parseSummary(parser));
057                }
058            }
059            else if (eventType == XmlPullParser.END_TAG) {
060                if (parser.getName().equals("transcripts")) {
061                    done = true;
062                }
063            }
064        }
065
066        return new Transcripts(userID, summaries);
067    }
068
069    private Transcripts.TranscriptSummary parseSummary(XmlPullParser parser) throws IOException,
070            XmlPullParserException {
071        String sessionID =  parser.getAttributeValue("", "sessionID");
072        Date joinTime = null;
073        Date leftTime = null;
074        List<Transcripts.AgentDetail> agents = new ArrayList<Transcripts.AgentDetail>();
075
076        boolean done = false;
077        while (!done) {
078            int eventType = parser.next();
079            if (eventType == XmlPullParser.START_TAG) {
080                if (parser.getName().equals("joinTime")) {
081                    try {
082                        joinTime = UTC_FORMAT.parse(parser.nextText());
083                    } catch (ParseException e) {}
084                }
085                else if (parser.getName().equals("leftTime")) {
086                    try {
087                        leftTime = UTC_FORMAT.parse(parser.nextText());
088                    } catch (ParseException e) {}
089                }
090                else if (parser.getName().equals("agents")) {
091                    agents = parseAgents(parser);
092                }
093            }
094            else if (eventType == XmlPullParser.END_TAG) {
095                if (parser.getName().equals("transcript")) {
096                    done = true;
097                }
098            }
099        }
100
101        return new Transcripts.TranscriptSummary(sessionID, joinTime, leftTime, agents);
102    }
103
104    private List<Transcripts.AgentDetail> parseAgents(XmlPullParser parser) throws IOException, XmlPullParserException {
105        List<Transcripts.AgentDetail> agents = new ArrayList<Transcripts.AgentDetail>();
106        String agentJID =  null;
107        Date joinTime = null;
108        Date leftTime = null;
109
110        boolean done = false;
111        while (!done) {
112            int eventType = parser.next();
113            if (eventType == XmlPullParser.START_TAG) {
114                if (parser.getName().equals("agentJID")) {
115                    agentJID = parser.nextText();
116                }
117                else if (parser.getName().equals("joinTime")) {
118                    try {
119                        joinTime = UTC_FORMAT.parse(parser.nextText());
120                    } catch (ParseException e) {}
121                }
122                else if (parser.getName().equals("leftTime")) {
123                    try {
124                        leftTime = UTC_FORMAT.parse(parser.nextText());
125                    } catch (ParseException e) {}
126                }
127                else if (parser.getName().equals("agent")) {
128                    agentJID =  null;
129                    joinTime = null;
130                    leftTime = null;
131                }
132            }
133            else if (eventType == XmlPullParser.END_TAG) {
134                if (parser.getName().equals("agents")) {
135                    done = true;
136                }
137                else if (parser.getName().equals("agent")) {
138                    agents.add(new Transcripts.AgentDetail(agentJID, joinTime, leftTime));
139                }
140            }
141        }
142        return agents;
143    }
144}