CachedMzML.h

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//                   OpenMS -- Open-Source Mass Spectrometry
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// Copyright The OpenMS Team -- Eberhard Karls University Tuebingen,
// ETH Zurich, and Freie Universitaet Berlin 2002-2020.
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// This software is released under a three-clause BSD license:
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// $Maintainer: Hannes Roest $
// $Authors: Hannes Roest $
// --------------------------------------------------------------------------
 
#pragma once
 
#include <OpenMS/KERNEL/MSExperiment.h>
 
#include <fstream>
 
namespace OpenMS
{
 
  class OPENMS_DLLAPI CachedmzML
  {
 
public:
 
    CachedmzML();
 
    CachedmzML(const String& filename);
 
    CachedmzML(const CachedmzML & rhs);
 
    ~CachedmzML();
 
    MSSpectrum getSpectrum(Size id);
 
    MSChromatogram getChromatogram(Size id);
 
    size_t getNrSpectra() const;
 
    size_t getNrChromatograms() const;
 
    const MSExperiment& getMetaData() const
    {
      return meta_ms_experiment_;
    }
 
    static void store(const String& filename, const PeakMap& map);
 
    static void load(const String& filename, CachedmzML& map);
 
protected:
 
    void load_(const String& filename);
 
    MSExperiment meta_ms_experiment_;
 
    std::ifstream ifs_;
 
    String filename_;
 
    String filename_cached_;
 
    std::vector<std::streampos> spectra_index_;
    std::vector<std::streampos> chrom_index_;
 
  };
}