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::parseDataImpl(const QByteArray &aData, const QString& url, int conferenceId) {
  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     TransactionRaii transaction(*sqlEngine); // begins the transaction
  48
  49     QString conference_title;
  50     if (!scheduleElement.isNull())
  51     {
  52         QDomElement conferenceElement = scheduleElement.firstChildElement("conference");
  53         QTime conference_day_change;
  54         if (!conferenceElement.isNull())
  55         {
  56             emit(parsingScheduleBegin());
  57             QHash<QString,QString> conference;
  58             conference["id"] = QString::number(conferenceId); // conference ID is assigned automatically if 0
  59             conference["title"] = conferenceElement.firstChildElement("title").text();
  60             conference["subtitle"] = conferenceElement.firstChildElement("subtitle").text();
  61             conference["venue"] = conferenceElement.firstChildElement("venue").text();
  62             conference["city"] = conferenceElement.firstChildElement("city").text();
  63             conference["start"] = conferenceElement.firstChildElement("start").text(); // date
  64             conference["end"] = conferenceElement.firstChildElement("end").text(); // date
  65             QString conferenceDayChangeStr = conferenceElement.firstChildElement("day_change").text(); // time, e.g. "04:00:00"
  66             if (conferenceDayChangeStr.isEmpty()) conferenceDayChangeStr = "04:00:00";
  67             conference["day_change"] = conferenceDayChangeStr;
  68             conference["timeslot_duration"] = conferenceElement.firstChildElement("timeslot_duration").text(); // time
  69             conference["url"] = url;
  70             sqlEngine->addConferenceToDB(conference, conferenceId);
  71             conferenceId = conference["id"].toInt();
  72             conference_title = conference["title"];
  73             conference_day_change = QTime(0, 0).addSecs(conference["day_change"].toInt());
  74         }
  75
  76         // we need to get count of all events in order to emit 'progressStatus' signal
  77         int totalEventsCount = scheduleElement.elementsByTagName("event").count();
  78
  79         // parsing day elements
  80         int currentEvent = 0; // hold global idx of processed event
  81         QDomNodeList dayList = scheduleElement.elementsByTagName("day");
  82         for (int i=0; i<dayList.count(); i++)
  83         {
  84             QDomElement dayElement = dayList.at(i).toElement();
  85             //QDate dayDate = QDate::fromString(dayElement.attribute("date"),DATE_FORMAT);
  86             //int dayIndex = dayElement.attribute("index").toInt();
  87
  88             // parsing room elements
  89             QDomNodeList roomList = dayElement.elementsByTagName("room");
  90             for (int i=0; i<roomList.count(); i++)
  91             {
  92                 QDomElement roomElement = roomList.at(i).toElement();
  93                 // roomElement has to be 'Element' and it has to have 'name' attribute
  94                 // TODO: 'event' has also 'room' node, so it can be unstable if that node has also 'name' attribute
  95                 if(roomElement.hasAttribute("name"))
  96                 {
  97                     // parsing event elements
  98                     QDomNodeList eventList = roomElement.elementsByTagName("event");
  99                     for (int i=0; i<eventList.count(); i++)
 100                     {
 101                         currentEvent++;
 102                         QDomElement eventElement = eventList.at(i).toElement();
 103
 104                         // now we have all info to create ROOM/EVENT_ROOM record(s)
 105                         QHash<QString,QString> room;
 106                         room["name"] = roomElement.attribute("name");
 107                         room["event_id"] = eventElement.attribute("id");
 108                         room["conference_id"] = QString::number(conferenceId,10);
 109                         sqlEngine->addRoomToDB(room);
 110
 111                         // process event's nodes
 112                         QHash<QString,QString> event;
 113                         event["id"] = eventElement.attribute("id");;
 114                         event["conference_id"] = QString::number(conferenceId, 10);
 115                         QTime event_start = QTime::fromString(eventElement.firstChildElement("start").text(), sqlEngine->TIME_FORMAT);
 116                         event["start"] = event_start.toString(sqlEngine->TIME_FORMAT); // time eg. 10:00
 117                         QDate event_date;
 118                         QDomElement eventDateElement = eventElement.firstChildElement("date");
 119                         if (!eventDateElement.isNull()) {
 120                             QString date_str = eventDateElement.text(); // date eg. 2009-02-07T10:00:00+00:00
 121                             event_date = QDate::fromString(date_str.left(sqlEngine->DATE_FORMAT.size()), sqlEngine->DATE_FORMAT);
 122                         } else {
 123                             event_date = QDate::fromString(dayElement.attribute("date"),sqlEngine->DATE_FORMAT); // date eg. 2009-02-07
 124                             if (event_start < conference_day_change) event_date = event_date.addDays(1);
 125                         }
 126                         event["date"] = event_date.toString(sqlEngine->DATE_FORMAT); // date eg. 2009-02-07
 127                         event["duration"] = eventElement.firstChildElement("duration").text(); // time eg. 00:30
 128                         event["room_name"] = eventElement.firstChildElement("room").text(); // string eg. "Janson"
 129                         event["tag"] = eventElement.firstChildElement("tag").text(); // string eg. "welcome"
 130                         event["title"] = eventElement.firstChildElement("title").text(); // string eg. "Welcome"
 131                         event["subtitle"] = eventElement.firstChildElement("subtitle").text(); // string
 132                         event["track"] = eventElement.firstChildElement("track").text(); // string eg. "Keynotes"
 133                         event["type"] = eventElement.firstChildElement("type").text(); // string eg. "Podium"
 134                         event["language"] = eventElement.firstChildElement("language").text(); // language eg. "English"
 135                         event["abstract"] = eventElement.firstChildElement("abstract").text(); // string
 136                         event["description"] = eventElement.firstChildElement("description").text(); // string
 137                         sqlEngine->addEventToDB(event);
 138                         // process persons' nodes
 139                         QDomElement personsElement = eventElement.firstChildElement("persons");
 140                         QDomNodeList personList = personsElement.elementsByTagName("person");
 141                         for(int i = 0;i < personList.count();i++){
 142                             QHash<QString,QString> person;
 143                             person["id"] = personList.at(i).toElement().attribute("id");
 144                             person["name"] = personList.at(i).toElement().text();
 145                             person["event_id"] = eventElement.attribute("id");
 146                             person["conference_id"] = QString::number(conferenceId, 10);
 147                             sqlEngine->addPersonToDB(person);
 148                         }
 149                         // process links' nodes
 150                         QDomElement linksElement = eventElement.firstChildElement("links");
 151                         QDomNodeList linkList = linksElement.elementsByTagName("link");
 152                         for(int i = 0;i < linkList.count();i++){
 153                             QHash<QString,QString> link;
 154                             link["name"] = linkList.at(i).toElement().text();
 155                             link["url"] = linkList.at(i).toElement().attribute("href");
 156                             link["event_id"] = eventElement.attribute("id");
 157                             link["conference_id"] = QString::number(conferenceId, 10);
 158                             sqlEngine->addLinkToDB(link);
 159                         }
 160                         // emit signal to inform the user about the current status (how many events are parsed so far - expressed in %)
 161                         int status = currentEvent * 100 / totalEventsCount;
 162                         progressStatus(status);
 163                     } // parsing event elements
 164                 }
 165             } // parsing room elements
 166         } // parsing day elements
 167     } // schedule element
 168     if (!conference_title.isNull()) {
 169         transaction.commit();
 170         emit parsingScheduleEnd(conferenceId);
 171     } else {
 172         error_message("Could not parse schedule");
 173     }
 174 }
 175
 176
 177 void ScheduleXmlParser::parseData(const QByteArray &aData, const QString& url, int conferenceId) {
 178     parseDataImpl(aData, url, conferenceId);
 179 }
 180