source: confclerk_git/src/sql/schedulexmlparser.cpp @ f519c91

Last change on this file since f519c91 was f519c91, checked in by gregor herrmann <gregor@…>, 5 years ago

schedulexmlparser.cpp: add missing #include

Found when building with gcc 4.2.1 under Maemo5.

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File size: 10.5 KB
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1/*
2 * Copyright (C) 2010 Ixonos Plc.
3 * Copyright (C) 2011-2017 Philipp Spitzer, gregor herrmann, Stefan Stahl
4 *
5 * This file is part of ConfClerk.
6 *
7 * ConfClerk is free software: you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the Free
9 * Software Foundation, either version 2 of the License, or (at your option)
10 * any later version.
11 *
12 * ConfClerk is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
15 * more details.
16 *
17 * You should have received a copy of the GNU General Public License along with
18 * ConfClerk.  If not, see <http://www.gnu.org/licenses/>.
19 */
20
21#include <QDomDocument>
22#include <QHash>
23#include <QTime>
24
25#include "schedulexmlparser.h"
26#include "sqlengine.h"
27#include "../gui/errormessage.h"
28
29#include <QDebug>
30#include <stdexcept>
31
32ScheduleXmlParser::ScheduleXmlParser(SqlEngine* sqlEngine, QObject *aParent): QObject(aParent),sqlEngine(sqlEngine) {
33}
34
35
36class ParseException: public std::runtime_error {
37public:
38    ParseException(const QString& message): std::runtime_error(message.toStdString()) {}
39};
40
41
42void checkEvent(QHash<QString,QString>& event) {
43    QString event_id = event["id"];
44    if (event_id.trimmed().isEmpty()) throw ParseException(QObject::tr("The ID of event '%1' is missing.").arg(event["title"]));
45    bool ok;
46    event_id.toInt(&ok);
47    if (!ok) throw ParseException(QObject::tr("The ID '%2' of event '%1' is not numeric.").arg(event["title"]).arg(event_id));
48}
49
50
51void ScheduleXmlParser::parseDataImpl(const QByteArray &aData, const QString& url, int conferenceId) {
52    QDomDocument document;
53    QString xml_error;
54    int xml_error_line;
55    int xml_error_column;
56    if (!document.setContent(aData, false, &xml_error, &xml_error_line, &xml_error_column)) {
57        throw ParseException("Could not parse schedule: " + xml_error + " at line " + QString("%1").arg(xml_error_line) + " column " + QString("%1").arg(xml_error_column));
58    }
59
60    QDomElement scheduleElement = document.firstChildElement("schedule");
61
62    TransactionRaii transaction(*sqlEngine); // begins the transaction
63
64    QString conference_title;
65    if (!scheduleElement.isNull())
66    {
67        QDomElement conferenceElement = scheduleElement.firstChildElement("conference");
68        QTime conference_day_change;
69        if (!conferenceElement.isNull())
70        {
71            emit(parsingScheduleBegin());
72            QHash<QString,QString> conference;
73            conference["id"] = QString::number(conferenceId); // conference ID is assigned automatically if 0
74            conference["title"] = conferenceElement.firstChildElement("title").text();
75            conference["subtitle"] = conferenceElement.firstChildElement("subtitle").text();
76            conference["venue"] = conferenceElement.firstChildElement("venue").text();
77            conference["city"] = conferenceElement.firstChildElement("city").text();
78            conference["start"] = conferenceElement.firstChildElement("start").text(); // date
79            conference["end"] = conferenceElement.firstChildElement("end").text(); // date
80            QString conferenceDayChangeStr = conferenceElement.firstChildElement("day_change").text(); // time, e.g. "04:00:00"
81            if (conferenceDayChangeStr.isEmpty()) conferenceDayChangeStr = "04:00:00";
82            conference["day_change"] = conferenceDayChangeStr;
83            conference["timeslot_duration"] = conferenceElement.firstChildElement("timeslot_duration").text(); // time
84            conference["url"] = url;
85            sqlEngine->addConferenceToDB(conference, conferenceId);
86            conferenceId = conference["id"].toInt();
87            conference_title = conference["title"];
88            conference_day_change = QTime(0, 0).addSecs(conference["day_change"].toInt());
89        }
90
91        // we need to get count of all events in order to emit 'progressStatus' signal
92        int totalEventsCount = scheduleElement.elementsByTagName("event").count();
93
94        // parsing day elements
95        int currentEvent = 0; // hold global idx of processed event
96        QDomNodeList dayList = scheduleElement.elementsByTagName("day");
97        for (int i=0; i<dayList.count(); i++)
98        {
99            QDomElement dayElement = dayList.at(i).toElement();
100            //QDate dayDate = QDate::fromString(dayElement.attribute("date"),DATE_FORMAT);
101            //int dayIndex = dayElement.attribute("index").toInt();
102
103            // parsing room elements
104            QDomNodeList roomList = dayElement.elementsByTagName("room");
105            for (int i=0; i<roomList.count(); i++)
106            {
107                QDomElement roomElement = roomList.at(i).toElement();
108                // roomElement has to be 'Element' and it has to have 'name' attribute
109                // TODO: 'event' has also 'room' node, so it can be unstable if that node has also 'name' attribute
110                if(roomElement.hasAttribute("name"))
111                {
112                    // parsing event elements
113                    QDomNodeList eventList = roomElement.elementsByTagName("event");
114                    for (int i=0; i<eventList.count(); i++)
115                    {
116                        currentEvent++;
117                        QDomElement eventElement = eventList.at(i).toElement();
118
119                        // now we have all info to create ROOM/EVENT_ROOM record(s)
120                        QHash<QString,QString> room;
121                        room["name"] = roomElement.attribute("name");
122                        room["event_id"] = eventElement.attribute("id");
123                        room["conference_id"] = QString::number(conferenceId,10);
124                        sqlEngine->addRoomToDB(room);
125
126                        // process event's nodes
127                        QHash<QString,QString> event;
128                        event["id"] = eventElement.attribute("id");
129                        event["conference_id"] = QString::number(conferenceId, 10);
130                        QTime event_start = QTime::fromString(eventElement.firstChildElement("start").text(), sqlEngine->TIME_FORMAT);
131                        event["start"] = event_start.toString(sqlEngine->TIME_FORMAT); // time eg. 10:00
132                        QDate event_date;
133                        QDomElement eventDateElement = eventElement.firstChildElement("date");
134                        if (!eventDateElement.isNull()) {
135                            QString date_str = eventDateElement.text(); // date eg. 2009-02-07T10:00:00+00:00
136                            event_date = QDate::fromString(date_str.left(sqlEngine->DATE_FORMAT.size()), sqlEngine->DATE_FORMAT);
137                        } else {
138                            event_date = QDate::fromString(dayElement.attribute("date"),sqlEngine->DATE_FORMAT); // date eg. 2009-02-07
139                            if (event_start < conference_day_change) event_date = event_date.addDays(1);
140                        }
141                        event["date"] = event_date.toString(sqlEngine->DATE_FORMAT); // date eg. 2009-02-07
142                        event["duration"] = eventElement.firstChildElement("duration").text(); // time eg. 00:30
143                        event["room_name"] = eventElement.firstChildElement("room").text(); // string eg. "Janson"
144                        event["tag"] = eventElement.firstChildElement("tag").text(); // string eg. "welcome"
145                        event["title"] = eventElement.firstChildElement("title").text(); // string eg. "Welcome"
146                        event["subtitle"] = eventElement.firstChildElement("subtitle").text(); // string
147                        event["track"] = eventElement.firstChildElement("track").text(); // string eg. "Keynotes"
148                        event["type"] = eventElement.firstChildElement("type").text(); // string eg. "Podium"
149                        event["language"] = eventElement.firstChildElement("language").text(); // language eg. "English"
150                        event["abstract"] = eventElement.firstChildElement("abstract").text(); // string
151                        event["description"] = eventElement.firstChildElement("description").text(); // string
152                        checkEvent(event);
153                        sqlEngine->addEventToDB(event);
154                        // process persons' nodes
155                        QDomElement personsElement = eventElement.firstChildElement("persons");
156                        QDomNodeList personList = personsElement.elementsByTagName("person");
157                        for(int i = 0;i < personList.count();i++){
158                            QHash<QString,QString> person;
159                            person["id"] = personList.at(i).toElement().attribute("id");
160                            person["name"] = personList.at(i).toElement().text();
161                            person["event_id"] = eventElement.attribute("id");
162                            person["conference_id"] = QString::number(conferenceId, 10);
163                            sqlEngine->addPersonToDB(person);
164                        }
165                        // process links' nodes
166                        QDomElement linksElement = eventElement.firstChildElement("links");
167                        QDomNodeList linkList = linksElement.elementsByTagName("link");
168                        for(int i = 0;i < linkList.count();i++){
169                            QHash<QString,QString> link;
170                            link["name"] = linkList.at(i).toElement().text();
171                            link["url"] = linkList.at(i).toElement().attribute("href");
172                            link["event_id"] = eventElement.attribute("id");
173                            link["conference_id"] = QString::number(conferenceId, 10);
174                            sqlEngine->addLinkToDB(link);
175                        }
176                        // emit signal to inform the user about the current status (how many events are parsed so far - expressed in %)
177                        int status = currentEvent * 100 / totalEventsCount;
178                        progressStatus(status);
179                    } // parsing event elements
180                }
181            } // parsing room elements
182        } // parsing day elements
183    } // schedule element
184    if (conference_title.isNull()) throw ParseException("Could not parse schedule");
185
186    transaction.commit();
187    emit parsingScheduleEnd(conferenceId);
188}
189
190
191void ScheduleXmlParser::parseData(const QByteArray &aData, const QString& url, int conferenceId) {
192    try {
193        parseDataImpl(aData, url, conferenceId);
194    } catch (ParseException& e) {
195        error_message(e.what());
196    }
197}
198
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