source: trunk/FACT++/src/Fits.h@ 11705

#ifndef FACT_Fits
#define FACT_Fits

#include <CCfits/CCfits>
#include <vector>

#include "Description.h"

class Converter;
class MessageImp;

using namespace std;

class Fits
{
        private:
                ///The CCfits object to the FITS file
        CCfits::FITS* fFile;
                ///Flag indicating whether the FITS object should be managed internally or not.
                bool fOwner;
                ///The CCfits Table
                CCfits::Table* fTable;
                ///The current number of Rows in the table
                int fNumRows;
                ///Name of the "standard", i.e. data found in every fits file
                ///TODO make these variable static so that they are shared by every object.
                ///TODO add also a static boolean to initialize these only once
                vector<Description> fStandardColDesc;
                ///Format of the standard columns.
                vector<string> fStandardFormats;
                ///the pointers to the standard variables
                vector<void*> fStandardPointers;
                ///the number of bytes taken by each standard variable
                vector<int> fStandardNumBytes;
                ///the vector of data column names
                vector<Description> fDataColDesc;
                ///the data format of the data columns
                vector<string> fDataFormats;
                ///the pointer to the contiguous memory location where the data is stored (i.e. the dim data pointer)
                void* fDataPointer;
                ///the size of the data, in bytes.
                int fDataNumBytes;
                ///the copy buffer. Required to put the standard and data variable in contguous memory 
                unsigned char* fCopyBuffer;
                ///the total number of bytes per FITS row
                int fTotalNumBytes;
                ///to keep track of the time of the latest written entry (to update the header when closing the file)
                double fEndMjD;
                ///Write the FITS header keys
                bool WriteHeaderKeys();
public:
                ///Name of the openned file. For querying stats
                string fFileName;
private:
                ///Keep track of number of opened fits
                uint32_t* fNumOpenFitsFiles;
                ///were to log the errors
                MessageImp* fMess;              
public:
        ///current run number being logged
                uint32_t fRunNumber;
                
                Fits() :  fFile(NULL),
                                  fOwner(false),
                                  fTable(NULL), 
                                         fNumRows(0), 
                                         fDataPointer(NULL), 
                                         fDataNumBytes(0), 
                                         fCopyBuffer(NULL), 
                                         fTotalNumBytes(0),
                                         fEndMjD(0.0),
                                         fFileName(""),
                                         fNumOpenFitsFiles(NULL),
                                         fMess(NULL),
                                         fRunNumber(0)
                 {}
                
                virtual ~Fits() 
                {
                        if (IsOpen())
                                Close();
                }
                ///returns wether or not the file is currently open or not
                bool IsOpen() const {return fFile != NULL;}
                
                ///Adds a column that exists in all FITS files
                void AddStandardColumn(const Description& desc, const string &dataFormat, void* dataPointer, long unsigned int numDataBytes);
                
                ///Adds columns specific to the service being logged.
                void InitDataColumns(const vector<Description> &desc, vector<string>& dataFormat, void* dataPointer, int numDataBytes);

                ///Opens a FITS file
        bool Open(const string& fileName, const string& tableName, CCfits::FITS* file, uint32_t* fitsCounter, MessageImp* out, int runNumber);//ostream& out);

                ///Write one line of data. Use the given converter.
                bool Write(const Converter &conv);
                
                ///Close the currently opened file.
                void Close();
                
                ///Get the size currently written on the disk
                int GetWrittenSize() const;
private:
                template <typename T>
                bool WriteSingleHeaderKey(const string &name, const T &value, const string &comment);
                CCfits::Table* findSuitableTableInFitsFile(const string& tableName,const vector<string>& allNames, const vector<string>& allDataTypes, const vector<string>& allUnits);

};//Fits


#endif /*FITS_H_*/