xymsrunreader.cpp

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/////////////////////// StdLib includes
 
 
/////////////////////// Qt includes
#include <QDebug>
#include <QFileInfo>
 
 
/////////////////////// libpwiz includes
#include <pwiz/data/msdata/DefaultReaderList.hpp>
 
 
/////////////////////// Local includes
#include "xymsrunreader.h"
#include "../utils.h"
#include "../pappsoexception.h"
#include "../exception/exceptionnotfound.h"
#include "../exception/exceptionnotpossible.h"
 
 
namespace pappso
{
 
XyMsRunReader::XyMsRunReader(MsRunIdCstSPtr &msrun_id_csp)
  : pappso::MsRunReader(msrun_id_csp)
{
  // Run the initialization function that checks that the file exists!
 
  initialize();
}
 
 
void
XyMsRunReader::initialize()
{
  if(!QFileInfo(mcsp_msRunId->getFileName()).exists())
    throw ExceptionNotFound(QObject::tr("Xy MS file %1 not found\n")
                              .arg(mcsp_msRunId->getFileName()));
}
 
 
XyMsRunReader::~XyMsRunReader()
{
}
 
 
bool
XyMsRunReader::accept(const QString &file_name) const
{
 
  // Here we just test all the lines of the file to check that they comply with
  // the xy format.
 
  std::size_t line_count = 0;
 
  QFile file(file_name);
 
  if(!file.open(QFile::ReadOnly | QFile::Text))
    {
      qDebug() << __FILE__ << __LINE__ << "Failed to open file" << file_name;
 
      return false;
    }
 
  QRegularExpressionMatch regExpMatch;
 
  QString line;
  bool file_reading_failed = false;
 
  while(!file.atEnd())
    {
      line = file.readLine();
      ++line_count;
 
      if(line.startsWith('#') || line.isEmpty() ||
         Utils::endOfLineRegExp.match(line).hasMatch())
        continue;
 
      // qDebug() << __FILE__ << __LINE__ << "Current xy format line:" << line;
 
      if(Utils::xyMassDataFormatRegExp.match(line).hasMatch())
        continue;
      else
        {
          file_reading_failed = true;
          break;
        }
    }
 
  file.close();
 
  if(!file_reading_failed && line_count >= 1)
    return true;
 
  return false;
}
 
 
pappso::MassSpectrumSPtr
XyMsRunReader::massSpectrumSPtr(std::size_t spectrum_index)
{
  return qualifiedMassSpectrum(spectrum_index).getMassSpectrumSPtr();
}
 
 
pappso::MassSpectrumCstSPtr
XyMsRunReader::massSpectrumCstSPtr(std::size_t spectrum_index)
{
  return qualifiedMassSpectrum(spectrum_index).getMassSpectrumCstSPtr();
}
 
 
QualifiedMassSpectrum
XyMsRunReader::qualifiedMassSpectrumFromXyMSDataFile(
  MassSpectrumId mass_spectrum_id) const
{
  // qDebug();
 
  // This is a file that contains a single spectrum. Just iterate in the various
  // lines and convert them to DataPoint objects that are fed to the mass
  // spectrum.
 
  QualifiedMassSpectrum qualified_mass_spectrum(mass_spectrum_id);
 
  // Set manually data that are necessary for the correct use of this mass
  // spectrum in the MS data set tree node.
  qualified_mass_spectrum.setMsLevel(1);
  qualified_mass_spectrum.setRtInSeconds(0);
 
  MassSpectrum mass_spectrum;
 
  QFile file(mcsp_msRunId->getFileName());
 
  if(!file.open(QFile::ReadOnly | QFile::Text))
    {
      qDebug() << __FILE__ << __LINE__ << "Failed to open file"
               << mcsp_msRunId->getFileName();
 
      return qualified_mass_spectrum;
    }
 
  QRegularExpressionMatch regExpMatch;
 
  QString line;
 
  while(!file.atEnd())
    {
      line = file.readLine();
 
      if(line.startsWith('#') || line.isEmpty() ||
         Utils::endOfLineRegExp.match(line).hasMatch())
        continue;
 
      if(Utils::xyMassDataFormatRegExp.match(line).hasMatch())
        {
          pappso_double x = -1;
          pappso_double y = -1;
 
          QRegularExpressionMatch regExpMatch =
            Utils::xyMassDataFormatRegExp.match(line);
 
          if(!regExpMatch.hasMatch())
            throw ExceptionNotPossible(
              QObject::tr("Failed to create data point with line %1.\n")
                .arg(line));
 
          bool ok = false;
 
          x = regExpMatch.captured(1).toDouble(&ok);
 
          if(!ok)
            throw ExceptionNotPossible(
              QObject::tr("Failed to create data point with line %1.\n")
                .arg(line));
 
          // Note that group 2 is the separator group.
 
          y = regExpMatch.captured(3).toDouble(&ok);
 
          if(!ok)
            throw ExceptionNotPossible(
              QObject::tr("Failed to create data point with line %1.\n")
                .arg(line));
 
          DataPoint data_point(x, y);
 
          mass_spectrum.emplace_back(x, y);
        }
    }
 
  file.close();
 
  MassSpectrumSPtr spectrum_sp = mass_spectrum.makeMassSpectrumSPtr();
  qualified_mass_spectrum.setMassSpectrumSPtr(spectrum_sp);
 
  // qDebug() << "the qualified mass spectrum has size:"
  //<< qualified_mass_spectrum.getMassSpectrumSPtr()->size();
 
  return qualified_mass_spectrum;
}
 
 
QualifiedMassSpectrum
XyMsRunReader::qualifiedMassSpectrum(std::size_t spectrum_index,
                                     bool want_binary_data) const
{
  // qDebug();
 
  // In reality there is only one mass spectrum in the file, so we do not use
  // spectrum_index, but use 0 instead.
 
  MassSpectrumId massSpectrumId(mcsp_msRunId, 0);
 
  QualifiedMassSpectrum qualified_mass_spectrum =
    qualifiedMassSpectrumFromXyMSDataFile(massSpectrumId);
 
  // qDebug() << "qualified mass spectrum has size:"
  //<< qualified_mass_spectrum.getMassSpectrumSPtr()->size();
 
  // We also do not abide by the want_binary_data parameter because in this XY
  // mass spec data file loading process we actually want the data.
  if(!want_binary_data)
    {
      // qualified_mass_spectrum.setMassSpectrumSPtr(nullptr);
    }
 
  return qualified_mass_spectrum;
}
 
 
void
XyMsRunReader::readSpectrumCollection(
  SpectrumCollectionHandlerInterface &handler)
{
  // qDebug();
 
  // In reality there is only one mass spectrum in the file.
 
  MassSpectrumId massSpectrumId(mcsp_msRunId, 0 /* spectrum index*/);
 
  QualifiedMassSpectrum qualified_mass_spectrum =
    qualifiedMassSpectrumFromXyMSDataFile(massSpectrumId);
 
  // qDebug() << "qualified mass spectrum has size:"
  //<< qualified_mass_spectrum.getMassSpectrumSPtr()->size();
 
  // The handler will receive the index of the mass spectrum in the
  // current run via the mass spectrum id member datum.
  handler.setQualifiedMassSpectrum(qualified_mass_spectrum);
 
  // qDebug() << "Loading ended";
  handler.loadingEnded();
}
 
 
std::size_t
XyMsRunReader::spectrumListSize() const
{
  return 1;
}
 
 
} // namespace pappso