FileRepository.h

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//_Title FileRepository.h Singleton file repository for ISIS DLM
//
//_Hist Sept 09 2004 Kris Becker, USGS
//_Version: $Id: FileRepository.h,v 1.3 2004/11/02 15:38:53 kbecker Exp $
//_End
#if !defined(FileRepository_h)
#define FileRepository_h
#include <string>
#include <list>
#include "iFile.h"

class Isis::Cube;
class Isis::Pvl;

namespace ISISDLM {


class FileRepository {
  public:
    static const char* const ID;          

    static FileRepository *Instance();

    int size() const { return (_files.size()); }

    iFile::Iid addCube(const std::string &filename, Isis::Cube *cube,
                       bool readonly = true);
    iFile::Iid addPvl(const std::string &filename, Isis::Pvl *pvl,
                      bool readonly = true);

    iFile *getFile(iFile::Iid id);
    iFile *getNthFile(int nth = 0);

    bool removeFile(iFile::Iid id);
    void Purge();

  protected:
    FileRepository() { }

  private: 
    ~FileRepository();
    FileRepository(const FileRepository &k);
    FileRepository operator=(const FileRepository &k);

    static FileRepository *_instance;  
    std::list<iFile *> _files;         

};


}
#endif