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cpp/include/cafeConvert.h
Jan Chrin 7ba4128448 cafe-1.12.5 release
2021-03-16 09:30:56 +01:00

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///
/// \file cafeConvert.h
/// \author Jan Chrin, PSI
/// \date Release: February 2015
/// \version CAFE 1.0.0
///
#ifndef CAFECONVERT_H
#define CAFECONVERT_H
#include <cafeDataType.h>
#include <cstdlib> // g++ 4.4.4
#include <cstdio>
#include <boost/math/special_functions/fpclassify.hpp>
/**
* CAFEConvert Template \n
* CTYPE is the input data type \n
* PVDataHolder methods use CAFEConvert as follows: \n
* method getAsDouble() converts CTYPE to double \n
* method getAsFloat () converts CTYPE to float \n
* method getAsShort () converts CTYPE to short \n
* method getAsEnum () converts CTYPE to enum \n
* method getAsChar () converts CTYPE to char \n
* method getAsLong () converts CTYPE to int \n
* method getAsString() converts CTYPE to string \n
*
*/
template <class CTYPE> class CAFEConvert
{
private:
CTYPE returnVal[1];
public:
CAFEConvert (unsigned int nelem) {};
CAFEConvert () {};
~CAFEConvert () {};
CTYPE * get(unsigned int index, CAFE_DATATYPE dt, CAFE_DATATYPE_UNION_SEQ val);
CTYPE * getString(unsigned int index, CAFE_DATATYPE dt, CAFE_DATATYPE_UNION_SEQ val);
CTYPE * getStringFromEnum(unsigned int index, unsigned int noStr, CAFE_DATATYPE_UNION_SEQ val, char stig[MAX_ENUM_STATES][MAX_ENUM_STRING_SIZE]);
CTYPE * get(CAFE_DATATYPE dt, CAFE_DATATYPE_UNION val);
CTYPE * getString(CAFE_DATATYPE dt, CAFE_DATATYPE_UNION val);
};
/**
* Converts from native type to CTYPE
* \param dt input: CAFE_DATATYPE
* \param val input: CAFE_DATATYPE_UNION
* \return CTYPE
*/
template <class CTYPE> CTYPE * CAFEConvert<CTYPE>::get (CAFE_DATATYPE dt, CAFE_DATATYPE_UNION val)
{
#define __METHOD__ "CAFEConvert<CTYPE>::get(dt, val)"
// (boost::math::isnan) calls the Boost version of the isnan macro
// Valid for all types that have numeric_limits support
// (brackets required) to avoid compiler error should isnan also be a native macro
switch (dt)
{
case CAFE_DOUBLE:
if ( (boost::math::isnan)((CTYPE) val.d) )
{
returnVal[0]= (CTYPE) val.d;
}
else
{
returnVal[0]= (CTYPE) 0;
}
break;
case CAFE_FLOAT:
if ( (boost::math::isnan)((CTYPE) val.f) )
{
returnVal[0]= (CTYPE) val.f;
}
else
{
returnVal[0]= 0;
}
break;
case CAFE_LONG:
returnVal[0]= (CTYPE) val.l;
break;
case CAFE_SHORT:
returnVal[0]= (CTYPE) val.s;
break;
case CAFE_ENUM:
returnVal[0]= (CTYPE) val.us;
break;
case CAFE_CHAR:
returnVal[0]= (CTYPE) val.ch;
break;
case CAFE_STRING:
returnVal[0]= (CTYPE) strtod( val.str, NULL);
break;
case CAFE_TYPENOTCONN:
//std::cout << __FILE__ << "/" << __LINE__ << "/" << __METHOD__
// << " CAFE_TYPENOTCONN: dataType: " << dt << " " << std::endl;
returnVal[0]=0;
break;
case CAFE_NO_ACCESS:
//std::cout << __FILE__ << "/" << __LINE__ << "/" << __METHOD__
// << " CAFE_NO_ACCESS: dataType: " << dt << " " << std::endl;
returnVal[0]=0;
break;
case CAFE_INVALID_DATATYPE:
//std::cout << __FILE__ << "/" << __LINE__ << "/" << __METHOD__
// << " CAFE_INVALID_DATATYPE: dataType: " << dt << " " << std::endl;
returnVal[0]=0;
break;
case CAFE_NOT_REQUESTED:
//std::cout << __FILE__ << "/" << __LINE__ << "/" << __METHOD__
// << " CAFE_NOT_REQUESTED: dataType: " << dt << " " << std::endl;
returnVal[0]=0;
break;
case CAFE_NOT_SHOWN:
//std::cout << __FILE__ << "/" << __LINE__ << "/" << __METHOD__
// << " CAFE_INVALID_DATATYPE: dataType: " << dt << " " << std::endl;
returnVal[0]=0;
break;
default:
std::cout << __FILE__ << "/" << __LINE__ << "/" << __METHOD__
<< " CAFE INTERNAL ERROR: Unknown dataType: " << dt << " " << std::endl;
returnVal[0]=0;
break;
}
return (CTYPE *) returnVal;
#undef __METHOD__
}
/**
* Converts from native type to CTYPE
* \param index input: index to val array
* \param dt input: CAFE_DATATYPE
* \param val input: CAFE_DATATYPE_UNION_SEQ
* \return CTYPE
*/
template <class CTYPE> CTYPE * CAFEConvert<CTYPE>::get (unsigned int index, CAFE_DATATYPE dt, CAFE_DATATYPE_UNION_SEQ val)
{
#define __METHOD__ "CAFEConvert<CTYPE>::get(index, dt, val[])"
switch (dt)
{
case CAFE_DOUBLE:
returnVal[0]= (CTYPE) val[index].d;
break;
case CAFE_FLOAT:
returnVal[0]= (CTYPE) val[index].f;
break;
case CAFE_LONG:
returnVal[0]= (CTYPE) val[index].l;
break;
case CAFE_SHORT:
returnVal[0]= (CTYPE) val[index].s;
break;
case CAFE_ENUM:
returnVal[0]= (CTYPE) val[index].us;
break;
case CAFE_CHAR:
returnVal[0]= (CTYPE) val[index].ch;
break;
case CAFE_STRING:
returnVal[0]= (CTYPE) strtod( val[index].str, NULL);
break;
case CAFE_TYPENOTCONN:
//std::cout << __FILE__ << "/" << __LINE__ << "/" << __METHOD__
// << " CAFE_TYPENOTCONN: dataType: " << dt << " " << std::endl;
returnVal[0]=0;
break;
case CAFE_NO_ACCESS:
//std::cout << __FILE__ << "/" << __LINE__ << "/" << __METHOD__
// << " CAFE_NO_ACCESS: dataType: " << dt << " " << std::endl;
returnVal[0]=0;
break;
case CAFE_INVALID_DATATYPE:
//std::cout << __FILE__ << "/" << __LINE__ << "/" << __METHOD__
// << " CAFE_INVALID_DATATYPE: dataType: " << dt << " " << std::endl;
returnVal[0]=0;
break;
case CAFE_NOT_REQUESTED:
//std::cout << __FILE__ << "/" << __LINE__ << "/" << __METHOD__
// << " CAFE_NOT_REQUESTED: dataType: " << dt << " " << std::endl;
returnVal[0]=0;
break;
case CAFE_NOT_SHOWN:
//std::cout << __FILE__ << "/" << __LINE__ << "/" << __METHOD__
// << " CAFE_INVALID_DATATYPE: dataType: " << dt << " " << std::endl;
returnVal[0]=0;
break;
default:
std::cout << __FILE__ << "/" << __LINE__ << "/" << __METHOD__
<< " CAFE INTERNAL ERROR: Unknown dataType: " << dt << " " << std::endl;
returnVal[0]=0;
break;
}
return (CTYPE *) returnVal;
#undef __METHOD__
};
/**
* Converts from DBR_ENUM type to CTYPE=STRING
* \param index input: index to val array
* \param noStr input: number of enumerations
* \param val input: CAFE_DATATYPE_UNION_SEQ
* \param stig input: stig[MAX_ENUM_STATES][MAX_ENUM_STRING_SIZE] an array of enum choices
* \return CTYPE
*/
template <class CTYPE> CTYPE * CAFEConvert<CTYPE>::getStringFromEnum (unsigned int index, unsigned int noStr, CAFE_DATATYPE_UNION_SEQ val,
char stig[MAX_ENUM_STATES][MAX_ENUM_STRING_SIZE])
{
#define __METHOD__ "CAFEConvert<CTYPE>::getStringFromEnum(indx, noStr, val, stig)"
unsigned int noEmptyStrings=0;
//Check for empty strings:
for (unsigned int j=0; j<noStr; ++j)
{
if (strcmp(stig[j],"")==0)
{
++noEmptyStrings;
}
}
// Some developers do not populate enum string values
//if (noStr==noEmptyStrings)
//{
// std::cout << "*** WARNING FROM " << __METHOD__ << " *** " << std::endl;
// std::cout << "ENUM STRING OPTIONS ARE ALL EMPTY! " << std::endl;
// std::cout << "BADLY CONFIGURED EPICS RECORD. " << std::endl;
//}
if (index < noStr && noStr!=noEmptyStrings)
{
sprintf(returnVal[0], "%s", stig[val[index].us] );
}
else
{
sprintf(returnVal[0], "%d", val[index].us );
if ( val[index].us>= noStr)
{
std::cout << "*** WARNING FROM " << __METHOD__ << " *** " << std::endl;
std::cout << "ENUM UNSIGNED SHORT VALUE IS GREATER THAN THE NO OF ENUMERATED TYPES" << std::endl;
std::cout << "VALUE (unsigned short) = " << val[index].us << std::endl;
std::cout << "NO OF ENUMERATED STRINGS = " << noStr << " WITH VALUES: " << std::endl;
for (unsigned int j=0; j<noStr; ++j)
{
std::cout << stig[j] << " [" <<j << "] ";
}
std::cout << std::endl;
}
}
return (CTYPE *) returnVal;
#undef __METHOD__
};
/**
* Converts from native type to CTYPE=STRING
* \param index input: index to val array
* \param dt input: CAFE_DATATYPE
* \param val input: CAFE_DATATYPE_UNION_SEQ
* \return CTYPE
*/
template <class CTYPE> CTYPE * CAFEConvert<CTYPE>::getString (unsigned int index, CAFE_DATATYPE dt, CAFE_DATATYPE_UNION_SEQ val)
{
#define __METHOD__ "CAFEConvert<CTYPE>::getString(nelem, dt, val[])"
switch (dt)
{
case CAFE_STRING:
sprintf(returnVal[0], "%s", val[index].str);
break;
case CAFE_CHAR:
sprintf(returnVal[0], "%u", val[index].ch);
break;
case CAFE_FLOAT:
sprintf(returnVal[0], "%f", val[index].f); //floats offer a precision of 6
break;
case CAFE_DOUBLE:
sprintf(returnVal[0], "%.15f", val[index].d); //double offer a precicion of 15
break;
case CAFE_SHORT:
sprintf(returnVal[0], "%d", val[index].s);
break;
case CAFE_LONG:
sprintf(returnVal[0], "%d", val[index].l);
break;
case CAFE_ENUM:
sprintf(returnVal[0], "%u", val[index].us);
break;
case CAFE_TYPENOTCONN:
//std::cout << __FILE__ << "//" << __LINE__ << "//" << __METHOD__ << std::endl;
//std::cout << " ERROR CAFE_TYPENOTCONN: dataType: " << dt << " " << std::endl;
sprintf(returnVal[0], "%s", "0"); //CAFE_TYPENOTCONN");
break;
case CAFE_NO_ACCESS:
//std::cout << __FILE__ << "//" << __LINE__ << "//" << __METHOD__ << std::endl;
//std::cout << " CAFE_NO_ACCESS: dataType: " << dt << " " << std::endl;
sprintf(returnVal[0], "%s", "0"); //"CAFE_NO_ACCESS");
break;
case CAFE_INVALID_DATATYPE:
//std::cout << __FILE__ << "//" << __LINE__ << "//" << __METHOD__ << std::endl;
//std::cout<< " CAFE_INVALID_DATATYPE: dataType: " << dt << " " << std::endl;
sprintf(returnVal[0], "%s", "0"); //"CAFE_INVALID_DATATYPE");
break;
case CAFE_NOT_REQUESTED:
//std::cout << __FILE__ << "//" << __LINE__ << "//" << __METHOD__ << std::endl;
//std::cout<< " CAFE_NOT_REQUESTED: dataType: " << dt << " " << std::endl;
sprintf(returnVal[0], "%s", "0"); //"");
break;
case CAFE_NOT_SHOWN:
//std::cout << __FILE__ << "//" << __LINE__ << "//" << __METHOD__ << std::endl;
//std::cout<< " CAFE_NOT_SHOWN: dataType: " << dt << " " << std::endl;
sprintf(returnVal[0], "%s", "0"); // "CAFE_NOT_SHOWN");
break;
default:
//std::cout << __FILE__ << "//" << __LINE__ << "//" << __METHOD__ << std::endl;
//std::cout<< " CAFE INTERNAL ERROR: Unknown dataType: "<< dt << " " << std::endl;
sprintf(returnVal[0], "%s", "0");// "Unknown dataType");
break;
}
return (CTYPE *) returnVal;
#undef __METHOD__
};
/**
* Converts from native type to CTYPE=STRING
* \param dt input: CAFE_DATATYPE
* \param val CAFE_DATATYPE_UNION input
* \return CTYPE
*/
template <class CTYPE> CTYPE * CAFEConvert<CTYPE>::getString (CAFE_DATATYPE dt, CAFE_DATATYPE_UNION val)
{
#define __METHOD__ "CAFEConvert<CTYPE>::getString(dt, val[])"
switch (dt)
{
case CAFE_STRING:
sprintf(returnVal[0], "%s", val.str);
break;
case CAFE_CHAR:
sprintf(returnVal[0], "%u", val.ch);
break;
case CAFE_FLOAT:
sprintf(returnVal[0], "%f", val.f); //floats offer a precision of 6
break;
case CAFE_DOUBLE:
sprintf(returnVal[0], "%.15f", val.d); //double offer a precicion of 15
break;
case CAFE_SHORT:
sprintf(returnVal[0], "%d", val.s);
break;
case CAFE_LONG:
sprintf(returnVal[0], "%d", val.l);
break;
case CAFE_ENUM:
sprintf(returnVal[0], "%u", val.us);
break;
case CAFE_TYPENOTCONN:
//std::cout << __FILE__ << "//" << __LINE__ << "//" << __METHOD__ << std::endl;
//std::cout << " ERROR CAFE_TYPENOTCONN: dataType: " << dt << " " << std::endl;
sprintf(returnVal[0], "%s", "0"); //CAFE_TYPENOTCONN");
break;
case CAFE_NO_ACCESS:
//std::cout << __FILE__ << "//" << __LINE__ << "//" << __METHOD__ << std::endl;
//std::cout << " CAFE_NO_ACCESS: dataType: " << dt << " " << std::endl;
sprintf(returnVal[0], "%s", "0"); //"CAFE_NO_ACCESS");
break;
case CAFE_INVALID_DATATYPE:
//std::cout << __FILE__ << "//" << __LINE__ << "//" << __METHOD__ << std::endl;
//std::cout<< " CAFE_INVALID_DATATYPE: dataType: " << dt << " " << std::endl;
sprintf(returnVal[0], "%s", "0"); //"CAFE_INVALID_DATATYPE");
break;
case CAFE_NOT_REQUESTED:
//std::cout << __FILE__ << "//" << __LINE__ << "//" << __METHOD__ << std::endl;
//std::cout<< " CAFE_NOT_REQUESTED: dataType: " << dt << " " << std::endl;
sprintf(returnVal[0], "%s", "0"); //"");
break;
case CAFE_NOT_SHOWN:
//std::cout << __FILE__ << "//" << __LINE__ << "//" << __METHOD__ << std::endl;
//std::cout<< " CAFE_NOT_SHOWN: dataType: " << dt << " " << std::endl;
sprintf(returnVal[0], "%s", "0"); // "CAFE_NOT_SHOWN");
break;
default:
//std::cout << __FILE__ << "//" << __LINE__ << "//" << __METHOD__ << std::endl;
//std::cout<< " CAFE INTERNAL ERROR: Unknown dataType: "<< dt << " " << std::endl;
sprintf(returnVal[0], "%s", "0");// "Unknown dataType");
break;
}
return (CTYPE *) returnVal;
#undef __METHOD__
};
#endif
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