IMSAlphabetParser.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 2002-2012.
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// $Maintainer: Stephan Aiche $
// $Authors: Anton Pervukhin <Anton.Pervukhin@CeBiTec.Uni-Bielefeld.DE> $
// --------------------------------------------------------------------------
//

#ifndef OPENMS_CHEMISTRY_MASSDECOMPOSITION_IMS_IMSALPHABETPARSER_H
#define OPENMS_CHEMISTRY_MASSDECOMPOSITION_IMS_IMSALPHABETPARSER_H

#include <fstream>
#include <istream>
#include <map>
#include <string>

#include <OpenMS/CONCEPT/Exception.h>

namespace OpenMS
{

  namespace ims
  {

    template <typename AlphabetElementType = double,
              typename Container = std::map<std::string, AlphabetElementType>,
              typename InputSource = std::istream>
    class IMSAlphabetParser
    {
public:
      typedef Container ContainerType;

      void load(const std::string & fname);

      virtual ContainerType & getElements() = 0;

      virtual void parse(InputSource & is) = 0;

      virtual ~IMSAlphabetParser() {}
    };

    template <typename AlphabetElementType, typename Container, typename InputSource>
    void IMSAlphabetParser<AlphabetElementType, Container, InputSource>::load(const std::string & fname)
    {
      std::ifstream ifs(fname.c_str());
      if (!ifs)
      {
        throw Exception::IOException(__FILE__, __LINE__, __PRETTY_FUNCTION__, fname);
      }
      this->parse(ifs);
    }

  } // namespace ims
} // namespace OpenMS

#endif // OPENMS_CHEMISTRY_MASSDECOMPOSITION_IMS_ALPHABETPARSER_H