TypeCode creation from XML

Hi Micke,

If you have the XML definition in a file, you can use the following method:

DDS_TypeCode * DDS_TypeCodeFactory::create_tc_from_xml_file(
        const char * file_name,
        const char * type_name,
        struct DDS_StringSeq & include_paths,
        DDS_UnsignedLong unbounded_string_max_length,
        DDS_UnsignedLong unbounded_sequence_max_length,
        DDS_ExceptionCode_t & ex);

You will need to get an instance of the TypeCodeFactory via TypeCodeFactory::get_instance(), then you will need to construct a string of include paths in which you probably only need to include an element with the path to the file that contains the XML, get the filename and the typename and pass in the unbounded string and sequence maximum length. The exception code will let you know what is going on in case of an error.

Let me know if this solution works for you.

Fernando.

is there an equivalent function in C? as far as I've seen there is nothing similar in the C API documentation.

regards,
marko

Hi Marko,

There is a C equivalent function in C, but it does not seem to be publicly documented. Here is how to use it:

DDS_TypeCode * DDS_TypeCodeFactory_create_tc_from_xml_file(
        DDS_TypeCodeFactory * self,
        const char * file_name,
        const char * type_name,
        struct DDS_StringSeq * include_paths,
        DDS_UnsignedLong unbounded_string_max_length,
        DDS_UnsignedLong unbounded_sequence_max_length,
        DDS_ExceptionCode_t * ex);

You will need to provide in an instance of the DDS_TypeCodeFactory in the self argument. In C, you ca get a pointer to the factory using the following function:

DDS_TypeCodeFactory * DDS_TypeCodeFactory_get_instance();

Please, let me know if you need help using these functions.

Thanks,
Fernando.

Hi Fernando,

It's a bit late but can you provide a concrete example of how to use the create_tc_from_xml_file() function?

Thanks.