MultiFileBlob.h

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#ifndef CondFormats_MultiFileBlob_h
#define CondFormats_MultiFileBlob_h
 
#include "CondFormats/Serialization/interface/Serializable.h"
 
#include <vector>
#include <string>
#include <map>
#include <iosfwd>
 
class MultiFileBlob {
public:
  typedef std::pair<unsigned char const*, unsigned char const*> Range;
 
  MultiFileBlob();
 
  ~MultiFileBlob();
 
  void finalized(bool compress);
 
  // void read(const std::string& name, const std::string& fname);
  // void write(const std::string& name, const std::string& fname) const;
 
  void read(const std::string& name, std::istream& is);
  void write(const std::string& name, std::ostream& os) const;
 
  // return blob
  Range rawBlob(const std::string& name) const;
 
  bool isCompressed() const { return compressed; }
 
  unsigned long long fullSize() const { return isize; }
 
  unsigned long long size(const std::string& name) const;
 
private:
  // expand locally;
  void expand();
 
  // static unsigned int computeFileSize(const std::string & ifile);
  // static unsigned int computeStreamSize(std::istream & is);
 
  std::vector<unsigned char> blob;
  typedef std::map<std::string, unsigned long long> Positions;
  Positions positions;
  bool compressed;  // persistent status
  unsigned long long isize;
  bool expanded COND_TRANSIENT;  // transient status
 
  COND_SERIALIZABLE;
};
 
#endif