src/sql/schedulexmlparser.cpp

   1 /*
   2  * Copyright (C) 2010 Ixonos Plc.
   3  * Copyright (C) 2011-2012 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
  24 #include "schedulexmlparser.h"
  25 #include "sqlengine.h"
  26 #include "../gui/errormessage.h"
  27
  28 #include <QDebug>
  29
  30 ScheduleXmlParser::ScheduleXmlParser(SqlEngine* sqlEngine, QObject *aParent): QObject(aParent),sqlEngine(sqlEngine) {
  31 }
  32
  33
  34 void ScheduleXmlParser::parseData(const QByteArray &aData, const QString& url, int conferenceId)
  35 {
  36     QDomDocument document;
  37     QString xml_error;
  38     int xml_error_line;
  39     int xml_error_column;
  40     if (!document.setContent (aData, false, &xml_error, &xml_error_line, &xml_error_column)) {
  41         error_message("Could not parse schedule: " + xml_error + " at line " + QString("%1").arg(xml_error_line) + " column " + QString("%1").arg(xml_error_column));
  42         return;
  43     }
  44
  45     QDomElement scheduleElement = document.firstChildElement("schedule");
  46
  47     sqlEngine->beginTransaction();
  48
  49     QString conference_title;
  50     if (!scheduleElement.isNull())
  51     {
  52         QDomElement conferenceElement = scheduleElement.firstChildElement("conference");
  53         if (!conferenceElement.isNull())
  54         {
  55             emit(parsingScheduleBegin());
  56             QHash<QString,QString> conference;
  57             conference["id"] = conferenceId; // conference ID is assigned automatically if 0
  58             conference["title"] = conferenceElement.firstChildElement("title").text();
  59             conference["subtitle"] = conferenceElement.firstChildElement("subtitle").text();
  60             conference["venue"] = conferenceElement.firstChildElement("venue").text();
  61             conference["city"] = conferenceElement.firstChildElement("city").text();
  62             conference["start"] = conferenceElement.firstChildElement("start").text(); // date
  63             conference["end"] = conferenceElement.firstChildElement("end").text(); // date
  64             conference["days"] = conferenceElement.firstChildElement("days").text(); // int
  65             conference["day_change"] = conferenceElement.firstChildElement("day_change").text(); // time
  66             conference["timeslot_duration"] = conferenceElement.firstChildElement("timeslot_duration").text(); // time
  67             conference["url"] = url;
  68             sqlEngine->addConferenceToDB(conference, conferenceId);
  69             conferenceId = conference["id"].toInt();
  70             conference_title = conference["title"];
  71         }
  72
  73         // we need to get count of all events in order to emit 'progressStatus' signal
  74         int totalEventsCount = scheduleElement.elementsByTagName("event").count();
  75
  76         // parsing day elements
  77         int currentEvent = 0; // hold global idx of processed event
  78         QDomNodeList dayList = scheduleElement.elementsByTagName("day");
  79         for (int i=0; i<dayList.count(); i++)
  80         {
  81             QDomElement dayElement = dayList.at(i).toElement();
  82             //QDate dayDate = QDate::fromString(dayElement.attribute("date"),DATE_FORMAT);
  83             //int dayIndex = dayElement.attribute("index").toInt();
  84
  85             // parsing room elements
  86             QDomNodeList roomList = dayElement.elementsByTagName("room");
  87             for (int i=0; i<roomList.count(); i++)
  88             {
  89                 QDomElement roomElement = roomList.at(i).toElement();
  90                 // roomElement has to be 'Element' and it has to have 'name' attribute
  91                 // TODO: 'event' has also 'room' node, so it can be unstable if that node has also 'name' attribute
  92                 if(roomElement.hasAttribute("name"))
  93                 {
  94                     // parsing event elements
  95                     QDomNodeList eventList = roomElement.elementsByTagName("event");
  96                     for (int i=0; i<eventList.count(); i++)
  97                     {
  98                         currentEvent++;
  99                         QDomElement eventElement = eventList.at(i).toElement();
 100
 101                         // now we have all info to create ROOM/EVENT_ROOM record(s)
 102                         QHash<QString,QString> room;
 103                         room["name"] = roomElement.attribute("name");
 104                         room["event_id"] = eventElement.attribute("id");
 105                         room["conference_id"] = QString::number(conferenceId,10);
 106                         sqlEngine->addRoomToDB(room);
 107
 108                         // process event's nodes
 109                         QHash<QString,QString> event;
 110                         event["id"] = eventElement.attribute("id");;
 111                         event["conference_id"] = QString::number(conferenceId, 10);
 112                         event["start"] = eventElement.firstChildElement("start").text(); // time eg. 10:00
 113                         event["date"] = dayElement.attribute("date"); // date eg. 2009-02-07
 114                         event["duration"] = eventElement.firstChildElement("duration").text(); // time eg. 00:30
 115                         event["room_name"] = eventElement.firstChildElement("room").text(); // string eg. "Janson"
 116                         event["tag"] = eventElement.firstChildElement("tag").text(); // string eg. "welcome"
 117                         event["title"] = eventElement.firstChildElement("title").text(); // string eg. "Welcome"
 118                         event["subtitle"] = eventElement.firstChildElement("subtitle").text(); // string
 119                         event["track"] = eventElement.firstChildElement("track").text(); // string eg. "Keynotes"
 120                         event["type"] = eventElement.firstChildElement("type").text(); // string eg. "Podium"
 121                         event["language"] = eventElement.firstChildElement("language").text(); // language eg. "English"
 122                         event["abstract"] = eventElement.firstChildElement("abstract").text(); // string
 123                         event["description"] = eventElement.firstChildElement("description").text(); // string
 124                         sqlEngine->addEventToDB(event);
 125                         // process persons' nodes
 126                         QDomElement personsElement = eventElement.firstChildElement("persons");
 127                         QDomNodeList personList = personsElement.elementsByTagName("person");
 128                         for(int i = 0;i < personList.count();i++){
 129                             QHash<QString,QString> person;
 130                             person["id"] = personList.at(i).toElement().attribute("id");
 131                             person["name"] = personList.at(i).toElement().text();
 132                             person["event_id"] = eventElement.attribute("id");
 133                             person["conference_id"] = QString::number(conferenceId, 10);
 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(conferenceId, 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     if (!conference_title.isNull()) {
 157         emit parsingScheduleEnd(conference_title);
 158     } else {
 159         error_message("Could not parse schedule");
 160     }
 161 }
 162