FileHandler.h

/**************************************************************************
 * basf2 (Belle II Analysis Software Framework)                           *
 * Author: The Belle II Collaboration                                     *
 *                                                                        *
 * See git log for contributors and copyright holders.                    *
 * This file is licensed under LGPL-3.0, see LICENSE.md.                  *
 **************************************************************************/
 
#pragma once
 
#include <framework/gearbox/InputHandler.h>
#include <boost/iostreams/filtering_stream.hpp>
#include <boost/format.hpp>
 
namespace Belle2 {
  namespace gearbox {

    class FileContext: public InputContext {
    public:
      FileContext(const std::string& filename, bool compressed);
      virtual int readXmlData(char* buffer, int buffsize) override
      {
        m_stream.read(buffer, buffsize);
        return m_stream.gcount();
      }

      virtual ~FileContext() {}
    protected:
      boost::iostreams::filtering_istream m_stream;
    };

    class FileHandler: public InputHandler {
    public:
      explicit FileHandler(const std::string& uri);
      virtual ~FileHandler() {}
      virtual InputContext* open(const std::string& path) override;
    protected:
      std::string m_path;
      boost::format m_pathformat;
      bool m_rundependence {false};
    };
  } //namespace gearbox
} //namespace Belle2