src/sql/schedulexmlparser.cpp

   1
   2 #include <QDomDocument>
   3 #include <QHash>
   4
   5 #include "schedulexmlparser.h"
   6 #include "sqlengine.h"
   7
   8 #include <QDebug>
   9
  10 ScheduleXmlParser::ScheduleXmlParser(QObject *aParent)
  11     : QObject(aParent)
  12 {
  13 }
  14
  15 int ScheduleXmlParser::parseData(const QByteArray &aData, SqlEngine *aDBEngine)
  16 {
  17     Q_ASSERT(NULL != aDBEngine);
  18
  19     QDomDocument document;
  20     document.setContent (aData, false);
  21
  22     QDomElement scheduleElement = document.firstChildElement("schedule");
  23
  24     int confId = 0;
  25     if (!scheduleElement.isNull())
  26     {
  27         QDomElement conferenceElement = scheduleElement.firstChildElement("conference");
  28         if (!conferenceElement.isNull())
  29         {
  30             QHash<QString,QString> conference;
  31             conference["id"] = QString::number(0); // conference ID is assigned automatically, or obtained from the DB
  32             conference["title"] = conferenceElement.firstChildElement("title").text();
  33             conference["subtitle"] = conferenceElement.firstChildElement("subtitle").text();
  34             conference["venue"] = conferenceElement.firstChildElement("venue").text();
  35             conference["city"] = conferenceElement.firstChildElement("city").text();
  36             conference["start"] = conferenceElement.firstChildElement("start").text(); // date
  37             conference["end"] = conferenceElement.firstChildElement("end").text(); // date
  38             conference["days"] = conferenceElement.firstChildElement("days").text(); // int
  39             conference["day_change"] = conferenceElement.firstChildElement("day_change").text(); // time
  40             conference["timeslot_duration"] = conferenceElement.firstChildElement("timeslot_duration").text(); // time
  41             aDBEngine->addConferenceToDB(conference);
  42             confId = conference["id"].toInt();
  43             emit(parsingSchedule(conference["title"]));
  44         }
  45
  46         // we need to get count of all events in order to emit 'progressStatus' signal
  47         int totalEventsCount = scheduleElement.elementsByTagName("event").count();
  48
  49         // parsing day elements
  50         int currentEvent = 0; // hold global idx of processed event
  51         QDomNodeList dayList = scheduleElement.elementsByTagName("day");
  52         for (int i=0; i<dayList.count(); i++)
  53         {
  54             QDomElement dayElement = dayList.at(i).toElement();
  55             //QDate dayDate = QDate::fromString(dayElement.attribute("date"),DATE_FORMAT);
  56             //int dayIndex = dayElement.attribute("index").toInt();
  57
  58             // parsing room elements
  59             QDomNodeList roomList = dayElement.elementsByTagName("room");
  60             for (int i=0; i<roomList.count(); i++)
  61             {
  62                 QDomElement roomElement = roomList.at(i).toElement();
  63                 // roomElement has to be 'Element' and it has to have 'name' attribute
  64                 // TODO: 'event' has also 'room' node, so it can be unstable if that node has also 'name' attribute
  65                 if(roomElement.hasAttribute("name"))
  66                 {
  67                     // parsing event elements
  68                     QDomNodeList eventList = roomElement.elementsByTagName("event");
  69                     for (int i=0; i<eventList.count(); i++)
  70                     {
  71                         currentEvent++;
  72                         QDomElement eventElement = eventList.at(i).toElement();
  73
  74                         // now we have all info to create ROOM/EVENT_ROOM record(s)
  75                         QHash<QString,QString> room;
  76                         room["name"] = roomElement.attribute("name");
  77                         room["event_id"] = eventElement.attribute("id");
  78                         room["conference_id"] = QString::number(confId,10);
  79                         room["picture"] = "NOT DEFINED YET"; // TODO: implement some mapping to assign correct picture to specified room_name
  80                         aDBEngine->addRoomToDB(room);
  81
  82                         // process event's nodes
  83                         QHash<QString,QString> event;
  84                         event["id"] = eventElement.attribute("id");;
  85                         event["conference_id"] = QString::number(confId, 10);
  86                         event["start"] = eventElement.firstChildElement("start").text(); // time eg. 10:00
  87                         event["date"] = dayElement.attribute("date"); // date eg. 2009-02-07
  88                         event["duration"] = eventElement.firstChildElement("duration").text(); // time eg. 00:30
  89                         event["room_name"] = eventElement.firstChildElement("room").text(); // string eg. "Janson"
  90                         event["tag"] = eventElement.firstChildElement("tag").text(); // string eg. "welcome"
  91                         event["title"] = eventElement.firstChildElement("title").text(); // string eg. "Welcome"
  92                         event["subtitle"] = eventElement.firstChildElement("subtitle").text(); // string
  93                         event["track"] = eventElement.firstChildElement("track").text(); // string eg. "Keynotes"
  94                         event["type"] = eventElement.firstChildElement("type").text(); // string eg. "Podium"
  95                         event["language"] = eventElement.firstChildElement("language").text(); // language eg. "English"
  96                         event["abstract"] = eventElement.firstChildElement("abstract").text(); // string
  97                         event["description"] = eventElement.firstChildElement("description").text(); // string
  98                         aDBEngine->addEventToDB(event);
  99                         // process persons' nodes
 100                         QList<QString> persons;
 101                         QDomElement personsElement = eventElement.firstChildElement("persons");
 102                         QDomNodeList personList = personsElement.elementsByTagName("person");
 103                         for(int i = 0;i < personList.count();i++){
 104                             QHash<QString,QString> person;
 105                             person["id"] = personList.at(i).toElement().attribute("id");
 106                             person["name"] = personList.at(i).toElement().text();
 107                             person["event_id"] = eventElement.attribute("id");
 108                             person["conference_id"] = QString::number(confId, 10);
 109                             //qDebug() << "adding Person: " << person["name"];
 110                             aDBEngine->addPersonToDB(person);
 111                         }
 112                         // process links' nodes
 113                         QDomElement linksElement = eventElement.firstChildElement("links");
 114                         QDomNodeList linkList = linksElement.elementsByTagName("link");
 115                         for(int i = 0;i < linkList.count();i++){
 116                             QHash<QString,QString> link;
 117                             link["name"] = linkList.at(i).toElement().text();
 118                             link["url"] = linkList.at(i).toElement().attribute("href");
 119                             link["event_id"] = eventElement.attribute("id");
 120                             link["conference_id"] = QString::number(confId, 10);
 121                             aDBEngine->addLinkToDB(link);
 122                         }
 123                         // emit signal to inform the user about the current status (how many events are parsed so far - expressed in %)
 124                         int status = currentEvent * 100 / totalEventsCount;
 125                         progressStatus(status);
 126                     } // parsing event elements
 127                 }
 128             } // parsing room elements
 129         } // parsing day elements
 130     } // schedule element
 131
 132     return confId;
 133 }
 134