src/sql/schedulexmlparser.cpp

   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
  31 ScheduleXmlParser::ScheduleXmlParser(SqlEngine* sqlEngine, QObject *aParent): QObject(aParent),sqlEngine(sqlEngine) {
  32 }
  33
  34
  35 void ScheduleXmlParser::parseData(const QByteArray &aData, const QString& url, int conferenceId)
  36 {
  37     QDomDocument document;
  38     QString xml_error;
  39     int xml_error_line;
  40     int xml_error_column;
  41     if (!document.setContent (aData, false, &xml_error, &xml_error_line, &xml_error_column)) {
  42         error_message("Could not parse schedule: " + xml_error + " at line " + QString("%1").arg(xml_error_line) + " column " + QString("%1").arg(xml_error_column));
  43         return;
  44     }
  45
  46     QDomElement scheduleElement = document.firstChildElement("schedule");
  47
  48     sqlEngine->beginTransaction();
  49
  50     QString conference_title;
  51     if (!scheduleElement.isNull())
  52     {
  53         QDomElement conferenceElement = scheduleElement.firstChildElement("conference");
  54         QTime conference_day_change;
  55         if (!conferenceElement.isNull())
  56         {
  57             emit(parsingScheduleBegin());
  58             QHash<QString,QString> conference;
  59             conference["id"] = QString::number(conferenceId); // conference ID is assigned automatically if 0
  60             conference["title"] = conferenceElement.firstChildElement("title").text();
  61             conference["subtitle"] = conferenceElement.firstChildElement("subtitle").text();
  62             conference["venue"] = conferenceElement.firstChildElement("venue").text();
  63             conference["city"] = conferenceElement.firstChildElement("city").text();
  64             conference["start"] = conferenceElement.firstChildElement("start").text(); // date
  65             conference["end"] = conferenceElement.firstChildElement("end").text(); // date
  66             QString conferenceDayChangeStr = conferenceElement.firstChildElement("day_change").text(); // time, e.g. "04:00:00"
  67             if (conferenceDayChangeStr.isEmpty()) conferenceDayChangeStr = "04:00:00";
  68             conference["day_change"] = conferenceDayChangeStr;
  69             conference["timeslot_duration"] = conferenceElement.firstChildElement("timeslot_duration").text(); // time
  70             conference["url"] = url;
  71             sqlEngine->addConferenceToDB(conference, conferenceId);
  72             conferenceId = conference["id"].toInt();
  73             conference_title = conference["title"];
  74             conference_day_change = QTime(0, 0).addSecs(conference["day_change"].toInt());
  75         }
  76
  77         // we need to get count of all events in order to emit 'progressStatus' signal
  78         int totalEventsCount = scheduleElement.elementsByTagName("event").count();
  79
  80         // parsing day elements
  81         int currentEvent = 0; // hold global idx of processed event
  82         QDomNodeList dayList = scheduleElement.elementsByTagName("day");
  83         for (int i=0; i<dayList.count(); i++)
  84         {
  85             QDomElement dayElement = dayList.at(i).toElement();
  86             //QDate dayDate = QDate::fromString(dayElement.attribute("date"),DATE_FORMAT);
  87             //int dayIndex = dayElement.attribute("index").toInt();
  88
  89             // parsing room elements
  90             QDomNodeList roomList = dayElement.elementsByTagName("room");
  91             for (int i=0; i<roomList.count(); i++)
  92             {
  93                 QDomElement roomElement = roomList.at(i).toElement();
  94                 // roomElement has to be 'Element' and it has to have 'name' attribute
  95                 // TODO: 'event' has also 'room' node, so it can be unstable if that node has also 'name' attribute
  96                 if(roomElement.hasAttribute("name"))
  97                 {
  98                     // parsing event elements
  99                     QDomNodeList eventList = roomElement.elementsByTagName("event");
 100                     for (int i=0; i<eventList.count(); i++)
 101                     {
 102                         currentEvent++;
 103                         QDomElement eventElement = eventList.at(i).toElement();
 104
 105                         // now we have all info to create ROOM/EVENT_ROOM record(s)
 106                         QHash<QString,QString> room;
 107                         room["name"] = roomElement.attribute("name");
 108                         room["event_id"] = eventElement.attribute("id");
 109                         room["conference_id"] = QString::number(conferenceId,10);
 110                         sqlEngine->addRoomToDB(room);
 111
 112                         // process event's nodes
 113                         QHash<QString,QString> event;
 114                         event["id"] = eventElement.attribute("id");;
 115                         event["conference_id"] = QString::number(conferenceId, 10);
 116                         QTime event_start = QTime::fromString(eventElement.firstChildElement("start").text(), sqlEngine->TIME_FORMAT);
 117                         event["start"] = event_start.toString(sqlEngine->TIME_FORMAT); // time eg. 10:00
 118                         QDate event_date;
 119                         QDomElement eventDateElement = eventElement.firstChildElement("date");
 120                         if (!eventDateElement.isNull()) {
 121                             QString date_str = eventDateElement.text(); // date eg. 2009-02-07T10:00:00+00:00
 122                             event_date = QDate::fromString(date_str.left(sqlEngine->DATE_FORMAT.size()), sqlEngine->DATE_FORMAT);
 123                         } else {
 124                             event_date = QDate::fromString(dayElement.attribute("date"),sqlEngine->DATE_FORMAT); // date eg. 2009-02-07
 125                             if (event_start < conference_day_change) event_date = event_date.addDays(1);
 126                         }
 127                         event["date"] = event_date.toString(sqlEngine->DATE_FORMAT); // date eg. 2009-02-07
 128                         event["duration"] = eventElement.firstChildElement("duration").text(); // time eg. 00:30
 129                         event["room_name"] = eventElement.firstChildElement("room").text(); // string eg. "Janson"
 130                         event["tag"] = eventElement.firstChildElement("tag").text(); // string eg. "welcome"
 131                         event["title"] = eventElement.firstChildElement("title").text(); // string eg. "Welcome"
 132                         event["subtitle"] = eventElement.firstChildElement("subtitle").text(); // string
 133                         event["track"] = eventElement.firstChildElement("track").text(); // string eg. "Keynotes"
 134                         event["type"] = eventElement.firstChildElement("type").text(); // string eg. "Podium"
 135                         event["language"] = eventElement.firstChildElement("language").text(); // language eg. "English"
 136                         event["abstract"] = eventElement.firstChildElement("abstract").text(); // string
 137                         event["description"] = eventElement.firstChildElement("description").text(); // string
 138                         sqlEngine->addEventToDB(event);
 139                         // process persons' nodes
 140                         QDomElement personsElement = eventElement.firstChildElement("persons");
 141                         QDomNodeList personList = personsElement.elementsByTagName("person");
 142                         for(int i = 0;i < personList.count();i++){
 143                             QHash<QString,QString> person;
 144                             person["id"] = personList.at(i).toElement().attribute("id");
 145                             person["name"] = personList.at(i).toElement().text();
 146                             person["event_id"] = eventElement.attribute("id");
 147                             person["conference_id"] = QString::number(conferenceId, 10);
 148                             sqlEngine->addPersonToDB(person);
 149                         }
 150                         // process links' nodes
 151                         QDomElement linksElement = eventElement.firstChildElement("links");
 152                         QDomNodeList linkList = linksElement.elementsByTagName("link");
 153                         for(int i = 0;i < linkList.count();i++){
 154                             QHash<QString,QString> link;
 155                             link["name"] = linkList.at(i).toElement().text();
 156                             link["url"] = linkList.at(i).toElement().attribute("href");
 157                             link["event_id"] = eventElement.attribute("id");
 158                             link["conference_id"] = QString::number(conferenceId, 10);
 159                             sqlEngine->addLinkToDB(link);
 160                         }
 161                         // emit signal to inform the user about the current status (how many events are parsed so far - expressed in %)
 162                         int status = currentEvent * 100 / totalEventsCount;
 163                         progressStatus(status);
 164                     } // parsing event elements
 165                 }
 166             } // parsing room elements
 167         } // parsing day elements
 168     } // schedule element
 169     sqlEngine->commitTransaction();
 170     if (!conference_title.isNull()) {
 171         emit parsingScheduleEnd(conferenceId);
 172     } else {
 173         error_message("Could not parse schedule");
 174     }
 175 }
 176