Synthetic RDF graph generator based on SHACL constraints.

rdf_shacl_generator is a Python package that can be used to generate RDF graphs based on SHACL constraints.

The following function can be used to generate RDF data:

generate_rdf(file1, file2, number_of_entities)

• file1 is a turtle file that contains SHACL shapes.
• file2 is a turtle file that will store the generated RDF entities
• number_of_entities is the number of RDF entities to be generated.

Link on PyPi: https://pypi.org/project/rdf-shacl-generator/

Link on GitHub: https://github.com/mveco/RDF_generator

Installation:

pip install rdf-shacl-generator

After installation, this package can be used as a command line tool:

rdfgen file1 file2 number_of_entities

Examples

Examples of SHACL Shapes based on Schema.org types can be found in the generated_examples\shape_examples directory in the GitHub repo, along with generated RDF data samples for these Shapes (in the generated_examples\generated_rdf directory) .

Remarks:

• A SHACL shape has to have a 'a sh:NodeShape' property and object in order to be recognized as a Node Shape.
• sh:severity is ignored because it has no useful info.
• SHACL Property Paths are not supported
• sh:datatype can have many different values, not all are recognized.
• sh:nodeKind is ignored
• The triples generated based on properties with a sh:minCount constraint can sometimes have a smaller value than the defined minimum count. This is because sometimes the generator generates the same triple multiple times.