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#ifndef NULLSOFT_AGAVE_METADATA_IFC_METADATAREADER_H
#define NULLSOFT_AGAVE_METADATA_IFC_METADATAREADER_H
#include <bfc/dispatch.h>
class ifc_metadataReader : public Dispatchable
{
protected:
ifc_metadataReader()
{}
~ifc_metadataReader()
{}
public:
/* If there are multiple values for the same field, these functions will concatenate the values in some
manner as defined by the language pack */
int GetField( const wchar_t *field, wchar_t *destination, size_t destinationCch );
int GetFieldByKey( uint32_t field_key, wchar_t *destination, size_t destinationCch );
int GetIndexedField( const wchar_t *field, uint32_t index, wchar_t *destination, size_t destinationCch );
int GetIndexedFieldByKey( uint32_t field_key, uint32_t index, wchar_t *destination, size_t destinationCch );
class ifc_fieldEnumerator : public Dispatchable
{
protected:
ifc_fieldEnumerator();
~ifc_fieldEnumerator();
public:
const wchar_t *GetField();
uint32_t GetKey();
int Next();
DISPATCH_CODES
{
DISP_GETFIELD = 0,
DISP_GETKEY = 1,
DISP_NEXT = 2,
};
};
enum
{
ENUMERATORFLAG_MULTIPLE_FIELDS = 0, // if multiple values of the same field are present, return each one
ENUMERATORFLAG_REMOVE_DUPLICATE_FIELDS = 1, // don't enumerate duplicate fields (with differing values)
};
ifc_fieldEnumerator *GetFieldEnumerator( int flags = ENUMERATORFLAG_MULTIPLE_FIELDS ); // Enumerate fields present in this file
DISPATCH_CODES
{
DISP_GETFIELD = 0,
DISP_GETFIELDKEY = 1,
DISP_GETINDEXEDFIELD = 2,
DISP_GETINDEXEDFIELDBYKEY = 3,
DISP_GETFIELDENUMERATOR = 4,
};
enum
{
NOT_IMPLEMENTED = -1,
SUCCESS = 0,
FAILURE = 1,
END_OF_ITERATOR = 2,
};
};
inline int ifc_metadataReader::GetField(const wchar_t *field, wchar_t *destination, size_t destinationCch)
{
return _call(DISP_GETFIELD, (int)ifc_metadataReader::NOT_IMPLEMENTED, field, destination, destinationCch);
}
inline int ifc_metadataReader::GetFieldByKey(uint32_t field_key, wchar_t *destination, size_t destinationCch)
{
return _call(DISP_GETFIELDKEY, (int)ifc_metadataReader::NOT_IMPLEMENTED, field_key, destination, destinationCch);
}
inline int ifc_metadataReader::GetIndexedField(const wchar_t *field, uint32_t index, wchar_t *destination, size_t destinationCch)
{
return _call(DISP_GETINDEXEDFIELD, (int)ifc_metadataReader::NOT_IMPLEMENTED, field, index, destination, destinationCch);
}
inline int ifc_metadataReader::GetIndexedFieldByKey(uint32_t field_key, uint32_t index, wchar_t *destination, size_t destinationCch)
{
return _call(DISP_GETINDEXEDFIELDBYKEY, (int)ifc_metadataReader::NOT_IMPLEMENTED, field_key, index, destination, destinationCch);
}
inline ifc_metadataReader::ifc_fieldEnumerator *ifc_metadataReader::GetFieldEnumerator(int flags)
{
return _call(DISP_GETFIELDENUMERATOR, (ifc_metadataReader::ifc_fieldEnumerator *)0, flags);
}
inline const wchar_t *ifc_metadataReader::ifc_fieldEnumerator::GetField()
{
return _call(DISP_NEXT, (const wchar_t *)0);
}
inline uint32_t ifc_metadataReader::ifc_fieldEnumerator::GetKey()
{
return _call(DISP_NEXT, (int)ifc_metadataReader::NOT_IMPLEMENTED);
}
inline int ifc_metadataReader::ifc_fieldEnumerator::Next()
{
return _call(DISP_NEXT, (int)END_OF_ITERATOR);
}
#endif
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