FesaStream.h

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// Copyright CERN 2012 - Developed in collaboration with GSI

#ifndef _FESA_STREAM_H_
#define _FESA_STREAM_H_

#include <fstream>
#include <sstream>
#include <string>
#include <map>

namespace fesa
{

class FesaStream: public std::ostringstream
{
  public:

    FesaStream(const std::string streamName);

    //instantiate or just retrieve a config stream object (one FesaStream per independent Fesa project).
    static FesaStream* getConfigStream(const std::string streamName);

    static FesaStream* getStateStream(const std::string streamName);

    std::string getFileName() const
    {
        return fileName_;
    }

    //Create and generate configFile from current ostream buffer
    bool update();
    //Read file and return contain in a string format
    bool read(std::string& streamName);

    //Header/Footer of the file
    static std::string configHeader_, configFooter_;
    static std::string stateHeader_, stateFooter_;

  private:

    static FesaStream* getFileStream(const std::string streamName);

    std::string* fileHeader_;
    std::string* fileFooter_;
    std::string fileName_; //Config file name
    std::fstream fileStream_; //Config file stream

    // Map to register FesaStream objects
    static std::map<std::string, FesaStream*> fileFactoryMap_;
};

} // fesa

#endif // _FESA_STREAM_H_