ocratatoAn update on the SASSY project.
I have been attempting to use its rule engine to create a document from some RDF data. The data is the quality attribute descriptions. This has not been going well, and the log messages tend to indicate that something is seriously awry.
The rule engine has several components that support editing and running the rules. Two of these use generated code that converts an RDF schema into C++ structures. One then creates a text file for editing the rules; the other creates the execution model that runs the rules.
The original idea was to derive implementation classes from the generated classes. This seems to mostly work, but things get complicated if you try to access a parent class, since the derived classes no longer have a proper parent relationship.
Fortunately the code generator can also create code that is intended to use the visitor pattern. The plan is to re-implement these two parts of the rule engine using that design pattern.
Nidonemo
Andi Chorley