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.XmlEnvironment;
029import org.jivesoftware.smack.provider.IQProvider;
030import org.jivesoftware.smack.util.ParserUtils;
031import org.jivesoftware.smack.xml.XmlPullParser;
032import org.jivesoftware.smack.xml.XmlPullParserException;
033
034import org.jxmpp.jid.Jid;
035
036/**
037 * An IQProvider for transcripts summaries.
038 *
039 * @author Gaston Dombiak
040 */
041public class TranscriptsProvider extends IQProvider<Transcripts> {
042
043    @SuppressWarnings("DateFormatConstant")
044    private static final SimpleDateFormat UTC_FORMAT = new SimpleDateFormat("yyyyMMdd'T'HH:mm:ss");
045    static {
046        UTC_FORMAT.setTimeZone(TimeZone.getTimeZone("GMT+0"));
047    }
048
049    @Override
050    public Transcripts parse(XmlPullParser parser, int initialDepth, XmlEnvironment xmlEnvironment)
051                    throws XmlPullParserException, IOException, TextParseException, ParseException {
052        Jid userID = ParserUtils.getJidAttribute(parser, "userID");
053        List<Transcripts.TranscriptSummary> summaries = new ArrayList<>();
054
055        boolean done = false;
056        while (!done) {
057            XmlPullParser.Event eventType = parser.next();
058            if (eventType == XmlPullParser.Event.START_ELEMENT) {
059                if (parser.getName().equals("transcript")) {
060                    Transcripts.TranscriptSummary summary = parseSummary(parser);
061                    summaries.add(summary);
062                }
063            }
064            else if (eventType == XmlPullParser.Event.END_ELEMENT) {
065                if (parser.getName().equals("transcripts")) {
066                    done = true;
067                }
068            }
069        }
070
071        return new Transcripts(userID, summaries);
072    }
073
074    private static Transcripts.TranscriptSummary parseSummary(XmlPullParser parser)
075                    throws IOException, XmlPullParserException, ParseException {
076        String sessionID =  parser.getAttributeValue("", "sessionID");
077        Date joinTime = null;
078        Date leftTime = null;
079        List<Transcripts.AgentDetail> agents = new ArrayList<>();
080
081        boolean done = false;
082        while (!done) {
083            XmlPullParser.Event eventType = parser.next();
084            if (eventType == XmlPullParser.Event.START_ELEMENT) {
085                if (parser.getName().equals("joinTime")) {
086                    synchronized (UTC_FORMAT) {
087                        joinTime = UTC_FORMAT.parse(parser.nextText());
088                     }
089                }
090                else if (parser.getName().equals("leftTime")) {
091                    synchronized (UTC_FORMAT) {
092                        leftTime = UTC_FORMAT.parse(parser.nextText());
093                    }
094                }
095                else if (parser.getName().equals("agents")) {
096                    agents = parseAgents(parser);
097                }
098            }
099            else if (eventType == XmlPullParser.Event.END_ELEMENT) {
100                if (parser.getName().equals("transcript")) {
101                    done = true;
102                }
103            }
104        }
105
106        return new Transcripts.TranscriptSummary(sessionID, joinTime, leftTime, agents);
107    }
108
109    private static List<Transcripts.AgentDetail> parseAgents(XmlPullParser parser)
110                    throws IOException, XmlPullParserException, ParseException {
111        List<Transcripts.AgentDetail> agents = new ArrayList<>();
112        String agentJID =  null;
113        Date joinTime = null;
114        Date leftTime = null;
115
116        boolean done = false;
117        while (!done) {
118            XmlPullParser.Event eventType = parser.next();
119            if (eventType == XmlPullParser.Event.START_ELEMENT) {
120                if (parser.getName().equals("agentJID")) {
121                    agentJID = parser.nextText();
122                }
123                else if (parser.getName().equals("joinTime")) {
124                    synchronized (UTC_FORMAT) {
125                        joinTime = UTC_FORMAT.parse(parser.nextText());
126                    }
127                }
128                else if (parser.getName().equals("leftTime")) {
129                    synchronized (UTC_FORMAT) {
130                        leftTime = UTC_FORMAT.parse(parser.nextText());
131                    }
132                }
133                else if (parser.getName().equals("agent")) {
134                    agentJID =  null;
135                    joinTime = null;
136                    leftTime = null;
137                }
138            }
139            else if (eventType == XmlPullParser.Event.END_ELEMENT) {
140                if (parser.getName().equals("agents")) {
141                    done = true;
142                }
143                else if (parser.getName().equals("agent")) {
144                    agents.add(new Transcripts.AgentDetail(agentJID, joinTime, leftTime));
145                }
146            }
147        }
148        return agents;
149    }
150}