Qt XML validtion Error handling

[S.D.]

Hi :)

I'm trying to find a solution that in case that a validation is not successful because there is more then one error in the XML file the QT MessageHandler(line, column, description etc. ) is able to show every error in the XML data not just the first one that occurs in the XML file.

Example: I have an error in line: 65 (see pic)

ask.png

but there are also errors in line :78,83,95 but it dose not show it only shows the first one.

Is there a solution for this case? And if yes how?

My Code looks like this:

MessageHandler messageHandler;
  QFile xsdfile("....xsd");
  xsdfile.open(QIODevice::ReadOnly);
  QXmlSchema schema;
  schema.setMessageHandler(&messageHandler);
  bool errorOccurred = false;
  if (schema.load(&xsdfile, QUrl::fromLocalFile(xsdfile.fileName())) == false)
     errorOccurred = true;
  else
  {
    QXmlSchemaValidator xmlvalidator(schema);
 
    QFile xmlfile("......xml");
    xmlfile.open(QIODevice::ReadOnly);
 
    if (!xmlvalidator.validate(&xmlfile, QUrl::fromLocalFile(xmlfile.fileName())))
      errorOccurred = true;
 
    xmlfile.close();
  }
  xsdfile.close();
  if (errorOccurred) {
    QString qs = messageHandler.statusMessage();
    cout << "Line: " << messageHandler.line() << "\n" << "Row: " << messageHandler.column() << "\n" << "ErrorMessage: ";
    std::cout << qs.toUtf8().constData() << std::endl;
    return -1;
  }
  else {
 
    return 0;
  }

MessageHandler messageHandler;
  QFile xsdfile("....xsd");
  xsdfile.open(QIODevice::ReadOnly);
  QXmlSchema schema;
  schema.setMessageHandler(&messageHandler);
  bool errorOccurred = false;
  if (schema.load(&xsdfile, QUrl::fromLocalFile(xsdfile.fileName())) == false)
     errorOccurred = true;
  else
  {
    QXmlSchemaValidator xmlvalidator(schema);

    QFile xmlfile("......xml");
    xmlfile.open(QIODevice::ReadOnly);

    if (!xmlvalidator.validate(&xmlfile, QUrl::fromLocalFile(xmlfile.fileName())))
      errorOccurred = true;

    xmlfile.close();
  }
  xsdfile.close();
  if (errorOccurred) {
    QString qs = messageHandler.statusMessage();
    cout << "Line: " << messageHandler.line() << "\n" << "Row: " << messageHandler.column() << "\n" << "ErrorMessage: ";
    std::cout << qs.toUtf8().constData() << std::endl;
    return -1;
  }
  else {

    return 0;
  }

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And my MessageHandler class looks like this:

class MessageHandler : public QAbstractMessageHandler
{
public:
  MessageHandler()
    : QAbstractMessageHandler(0)
  {
  }
 
  QString statusMessage() const
  {
    return m_description;
  }
 
  int line() const
  {
    return m_sourceLocation.line();
  }
 
  int column() const
  {
    return m_sourceLocation.column();
  }
 
protected:
  virtual void handleMessage(QtMsgType type, const QString &description,
    const QUrl &identifier, const QSourceLocation &sourceLocation)
  {
    Q_UNUSED(type);
    Q_UNUSED(identifier);
 
    m_description = description;
    m_sourceLocation = sourceLocation;
  }
 
private:
  QString m_description;
  QSourceLocation m_sourceLocation;
};

class MessageHandler : public QAbstractMessageHandler
{
public:
  MessageHandler()
    : QAbstractMessageHandler(0)
  {
  }

  QString statusMessage() const
  {
    return m_description;
  }

  int line() const
  {
    return m_sourceLocation.line();
  }

  int column() const
  {
    return m_sourceLocation.column();
  }

protected:
  virtual void handleMessage(QtMsgType type, const QString &description,
    const QUrl &identifier, const QSourceLocation &sourceLocation)
  {
    Q_UNUSED(type);
    Q_UNUSED(identifier);

    m_description = description;
    m_sourceLocation = sourceLocation;
  }

private:
  QString m_description;
  QSourceLocation m_sourceLocation;
};

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thanks ;)

[Lesiok]

Further analysis does not make sense because the successive errors can be the consequence of the first.