JContainer.hh

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#ifndef __JEEP__JCONTAINER__
#define __JEEP__JCONTAINER__

#include <istream>
#include <ostream>
#include <fstream>
#include <iomanip>

#include "JSystem/JStat.hh"
#include "JLang/JObjectStreamIO.hh"
#include "JLang/JStringStream.hh"

#include "Jeep/JComment.hh"
#include "Jeep/JStreamToolkit.hh"


/**
 * \file
 *
 * Container I/O.
 * \author mdejong
 */
namespace JEEP {}
namespace JPP { using namespace JEEP; }

namespace JEEP {

  using JLANG::JObjectStreamIO;


  /**
   * Auxiliary wrapper for I/O of container with optional comment (see JComment).
   *
   * When used in conjunction with the command line parser JPARSER::JParser, \n
   * the value at the corresponding option can contain data or be the name of a file.\n
   * The I/O of the actual container is handled via the auxiliary methods that are part of JStreamToolkit.hh.
   */
  template<class JContainer_t>
  struct JContainer :
    public JContainer_t,
    public JObjectStreamIO< JContainer<JContainer_t> >
  {
    typedef JContainer_t  container_type;


    /**
     * Read container from input.
     *
     * \param  in           input stream
     * \param  container    container
     * \return              input stream
     */
    friend inline std::istream& operator>>(std::istream& in, JContainer& container)
    {
      using namespace JPP;

      JStringStream is(in);

      if (getFileStatus(is.str().c_str())) {
        is.load();
      }

      is >> container.comment;

      readObject(is, static_cast<container_type&>(container));

      return in;
    }


    /**
     * Write container to output.
     *
     * \param  out          output stream
     * \param  container    container
     * \return              output stream
     */
    friend inline std::ostream& operator<<(std::ostream& out, const JContainer& container)
    {
      using namespace std;
      using namespace JPP;

      out << container.comment;

      writeObject(out, "", static_cast<const container_type&>(container), '\n');
      
      return out;
    }

    JComment comment;
  };
}

#endif