Given a set of RML mappings which maps RDF data (source) to RDF data (target), and given a SPARQL query formulated in terms of the target RDF data, rewrite the SPARQL query to a SPARQL query formulated in terms of the source RDF data.
Create a Docker image and run it based on the provided Dockerfile.
Build with Maven:
mvn clean package.
The result is a CLI program. Run the program to get the help information:
java -Djava.library.path=<path-to-jpl7-library> -jar <srr-filename>
Where <path-to-jpl7-library> is the folder containing libjpl.dylib libswipl.dylib.
This is to be found in the swipl installation directory.
This software uses four libraries:
- Apache Jena ARQ for SPARQL manipulation
- JPL7 to interface with SWI-Prolog
- JGraphT for some graph analysis used in the rewriting
- PicoCLI for the Command Line Interface (embedded source code)
RML mappings may only use specific templates for termmaps. The templates must:
- contain only one variable
- the variable must occur at the end of the template
- Add support for general templates
- Replace prolog unification with Clojure.core.logic unification
Thomas Delva for the original RML package