OriginalXmlLabel.cpp

 
/* SPDX-License-Identifier: CC0-1.0 */
#include <fstream>
#include <sstream>
#include <string>
 
#include <QByteArray>
#include <QFile>
 
#include "OriginalXmlLabel.h"
#include "Application.h"
#include "PvlObject.h"
 
using namespace std;
namespace Isis {
  OriginalXmlLabel::OriginalXmlLabel() {
  }
 
 
  OriginalXmlLabel::OriginalXmlLabel(const QString &file) {
    Blob blob = Blob("IsisCube", "OriginalXmlLabel");
    blob.Read(file);
    fromBlob(blob);
  }
 
  OriginalXmlLabel::OriginalXmlLabel(Isis::Blob &blob) {
    fromBlob(blob);
  }
 
 
  OriginalXmlLabel::~OriginalXmlLabel() {
  }
 
 
  /*
   * Load blob data into m_originalLabel
   */
  void OriginalXmlLabel::fromBlob(Isis::Blob blob) {
    QString errorMessage;
    int errorLine = 0;
    int errorColumn = 0;
 
    if ( !m_originalLabel.setContent( QByteArray(blob.getBuffer(), blob.Size()) ) ) {
      QString msg = "XML read/parse error when parsing original label. "
                    "Error at line [" + toString(errorLine) +
                    "], column [" + toString(errorColumn) +
                    "]. Error message: " + errorMessage;
      throw IException(IException::Unknown, msg, _FILEINFO_);
    }
  }
 
 
  Blob OriginalXmlLabel::toBlob() const {
    std::stringstream sstream;
    sstream << m_originalLabel.toString();
    string orglblStr = sstream.str();
    Isis::Blob blob("IsisCube", "OriginalXmlLabel");
    blob.setData((char*)orglblStr.data(), orglblStr.length());
    blob.Label() += Isis::PvlKeyword("ByteOrder", "NULL");
    if (Isis::IsLsb()) {
      blob.Label()["ByteOrder"] = Isis::ByteOrderName(Isis::Lsb);
    }
    else {
      blob.Label()["ByteOrder"] = Isis::ByteOrderName(Isis::Msb);
    }
    return blob;
  }
 
 
  void OriginalXmlLabel::readFromXmlFile(const FileName &xmlFileName) {
    QFile xmlFile(xmlFileName.expanded());
     if ( !xmlFile.open(QIODevice::ReadOnly) ) {
       QString msg = "Could not open label file [" + xmlFileName.expanded() +
                     "].";
       throw IException(IException::Io, msg, _FILEINFO_);
     }
 
     QString errmsg;
     int errline, errcol;
     if ( !m_originalLabel.setContent(&xmlFile, false, &errmsg, &errline, &errcol) ) {
       xmlFile.close();
       QString msg = "XML read/parse error in file [" + xmlFileName.expanded()
            + "] at line [" + toString(errline) + "], column [" + toString(errcol)
            + "], message: " + errmsg;
       throw IException(IException::Unknown, msg, _FILEINFO_);
     }
 
     xmlFile.close();
  }
 
 
  const QDomDocument &OriginalXmlLabel::ReturnLabels() const{
    return m_originalLabel;
  }
}