source: src/sql/schedulexmlparser.cpp @ 3329d39

qt5
Last change on this file since 3329d39 was 3329d39, checked in by kirilma <kirilma@…>, 12 years ago

use visible notifications of errors

also early detect parsing errors

  • Property mode set to 100644
File size: 8.4 KB
Line 
1/*
2 * Copyright (C) 2010 Ixonos Plc.
3 *
4 * This file is part of fosdem-schedule.
5 *
6 * fosdem-schedule is free software: you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the Free
8 * Software Foundation, either version 2 of the License, or (at your option)
9 * any later version.
10 *
11 * fosdem-schedule is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * fosdem-schedule.  If not, see <http://www.gnu.org/licenses/>.
18 */
19
20#include <QDomDocument>
21#include <QHash>
22
23#include "schedulexmlparser.h"
24#include "sqlengine.h"
25#include "../gui/errormessage.h"
26
27#include <QDebug>
28
29ScheduleXmlParser::ScheduleXmlParser(QObject *aParent)
30    : QObject(aParent)
31{
32}
33
34int ScheduleXmlParser::parseData(const QByteArray &aData, const QString& url)
35{
36    QDomDocument document;
37    QString xml_error;
38    if (!document.setContent (aData, false, &xml_error)) {
39        error_message("Could not parse schedule: " + xml_error);
40        return -1;
41    }
42
43    QDomElement scheduleElement = document.firstChildElement("schedule");
44
45    SqlEngine::beginTransaction();
46
47    int confId = 0;
48    if (!scheduleElement.isNull())
49    {
50        QDomElement conferenceElement = scheduleElement.firstChildElement("conference");
51        if (!conferenceElement.isNull())
52        {
53            QHash<QString,QString> conference;
54            conference["id"] = QString::number(0); // conference ID is assigned automatically, or obtained from the DB
55            conference["title"] = conferenceElement.firstChildElement("title").text();
56            conference["subtitle"] = conferenceElement.firstChildElement("subtitle").text();
57            conference["venue"] = conferenceElement.firstChildElement("venue").text();
58            conference["city"] = conferenceElement.firstChildElement("city").text();
59            conference["start"] = conferenceElement.firstChildElement("start").text(); // date
60            conference["end"] = conferenceElement.firstChildElement("end").text(); // date
61            conference["days"] = conferenceElement.firstChildElement("days").text(); // int
62            conference["day_change"] = conferenceElement.firstChildElement("day_change").text(); // time
63            conference["timeslot_duration"] = conferenceElement.firstChildElement("timeslot_duration").text(); // time
64            conference["url"] = url;
65            SqlEngine::addConferenceToDB(conference);
66            confId = conference["id"].toInt();
67            emit(parsingSchedule(conference["title"]));
68        }
69
70        // we need to get count of all events in order to emit 'progressStatus' signal
71        int totalEventsCount = scheduleElement.elementsByTagName("event").count();
72
73        // parsing day elements
74        int currentEvent = 0; // hold global idx of processed event
75        QDomNodeList dayList = scheduleElement.elementsByTagName("day");
76        for (int i=0; i<dayList.count(); i++)
77        {
78            QDomElement dayElement = dayList.at(i).toElement();
79            //QDate dayDate = QDate::fromString(dayElement.attribute("date"),DATE_FORMAT);
80            //int dayIndex = dayElement.attribute("index").toInt();
81
82            // parsing room elements
83            QDomNodeList roomList = dayElement.elementsByTagName("room");
84            for (int i=0; i<roomList.count(); i++)
85            {
86                QDomElement roomElement = roomList.at(i).toElement();
87                // roomElement has to be 'Element' and it has to have 'name' attribute
88                // TODO: 'event' has also 'room' node, so it can be unstable if that node has also 'name' attribute
89                if(roomElement.hasAttribute("name"))
90                {
91                    // parsing event elements
92                    QDomNodeList eventList = roomElement.elementsByTagName("event");
93                    for (int i=0; i<eventList.count(); i++)
94                    {
95                        currentEvent++;
96                        QDomElement eventElement = eventList.at(i).toElement();
97
98                        // now we have all info to create ROOM/EVENT_ROOM record(s)
99                        QHash<QString,QString> room;
100                        room["name"] = roomElement.attribute("name");
101                        room["event_id"] = eventElement.attribute("id");
102                        room["conference_id"] = QString::number(confId,10);
103                        room["picture"] = "NOT DEFINED YET"; // TODO: implement some mapping to assign correct picture to specified room_name
104                        SqlEngine::addRoomToDB(room);
105
106                        // process event's nodes
107                        QHash<QString,QString> event;
108                        event["id"] = eventElement.attribute("id");;
109                        event["conference_id"] = QString::number(confId, 10);
110                        event["start"] = eventElement.firstChildElement("start").text(); // time eg. 10:00
111                        event["date"] = dayElement.attribute("date"); // date eg. 2009-02-07
112                        event["duration"] = eventElement.firstChildElement("duration").text(); // time eg. 00:30
113                        event["room_name"] = eventElement.firstChildElement("room").text(); // string eg. "Janson"
114                        event["tag"] = eventElement.firstChildElement("tag").text(); // string eg. "welcome"
115                        event["title"] = eventElement.firstChildElement("title").text(); // string eg. "Welcome"
116                        event["subtitle"] = eventElement.firstChildElement("subtitle").text(); // string
117                        event["track"] = eventElement.firstChildElement("track").text(); // string eg. "Keynotes"
118                        event["type"] = eventElement.firstChildElement("type").text(); // string eg. "Podium"
119                        event["language"] = eventElement.firstChildElement("language").text(); // language eg. "English"
120                        event["abstract"] = eventElement.firstChildElement("abstract").text(); // string
121                        event["description"] = eventElement.firstChildElement("description").text(); // string
122                        SqlEngine::addEventToDB(event);
123                        // process persons' nodes
124                        QList<QString> persons;
125                        QDomElement personsElement = eventElement.firstChildElement("persons");
126                        QDomNodeList personList = personsElement.elementsByTagName("person");
127                        for(int i = 0;i < personList.count();i++){
128                            QHash<QString,QString> person;
129                            person["id"] = personList.at(i).toElement().attribute("id");
130                            person["name"] = personList.at(i).toElement().text();
131                            person["event_id"] = eventElement.attribute("id");
132                            person["conference_id"] = QString::number(confId, 10);
133                            //qDebug() << "adding Person: " << person["name"];
134                            SqlEngine::addPersonToDB(person);
135                        }
136                        // process links' nodes
137                        QDomElement linksElement = eventElement.firstChildElement("links");
138                        QDomNodeList linkList = linksElement.elementsByTagName("link");
139                        for(int i = 0;i < linkList.count();i++){
140                            QHash<QString,QString> link;
141                            link["name"] = linkList.at(i).toElement().text();
142                            link["url"] = linkList.at(i).toElement().attribute("href");
143                            link["event_id"] = eventElement.attribute("id");
144                            link["conference_id"] = QString::number(confId, 10);
145                            SqlEngine::addLinkToDB(link);
146                        }
147                        // emit signal to inform the user about the current status (how many events are parsed so far - expressed in %)
148                        int status = currentEvent * 100 / totalEventsCount;
149                        progressStatus(status);
150                    } // parsing event elements
151                }
152            } // parsing room elements
153        } // parsing day elements
154    } // schedule element
155    SqlEngine::commitTransaction();
156
157    return confId;
158}
159
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