Gryphon is a lightweight framework for integrating ontologies and relational databases in really simple way.

Paper coming soon...

Supported ontology formats:

• OWL
• RDF

Supported databases:

• MySQL
• PostgreSQL

How to Use

1. Configure

// Where the alignments and mappings will be saved? Want to see logs?
GryphonConfig.setWorkingDirectory(new File("integrationExample"));
GryphonConfig.setLogEnabled(true);
GryphonConfig.setShowGryphonLogoOnConsole(true);

// Init Gryphon
Gryphon.init();

// Where are the sources?
Ontology globalOntBibtex = new Ontology("globalOntology", uriToGlobalOntology);
Ontology localOnt1 = new Ontology("localOntology1", uriToLocalOntology1);
Ontology localOnt2 = new Ontology("localOntology2", uriToLocalOntology2);
Database localDB1 = new Database("localhost", 3306, "username", "password", "localDatabase1", Database.DBMS.MySQL);
Database localDB1 = new Database("localhost", 3306, "username", "password", "localDatabase2", Database.DBMS.PostgreSQL);

Gryphon.setGlobalOntology(globalOntBibtex);
Gryphon.addLocalOntology(localOnt1);
Gryphon.addLocalOntology(localOnt2);
Gryphon.addLocalDatabase(localDB1);

2. Align (and Map) the Sources

// Simple like that (this may take a while)
Gryphon.align();

3. Query Using SPARQL

// Query must be based on *Global Ontology*
String strQuery = 
	 "PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> "
	+"SELECT ?x ?y "
	+"WHERE { ?x rdf:type ?y }";
Gryphon.query(strQuery);

4. Save Result

// TODO

Supported formats:

• TODO

Practical Example

Check out Example.java for a complete example.

You'll find ontologies and databases used on examples in examples folder.

Developed By

• Adriel Café | aac3@cin.ufpe.br
• Filipe Santana | fss3@cin.ufpe.br
• Fred Freitas | fred@cin.ufpe.br

Acknowledgements

This project was founded by FACEPE (IBPG-0342-1.03/13).

Special thanks to:

• Jena
• Sesame
• AgreementMakerLight
• D2RQ
• Mediation

License

The MIT License (MIT)

Copyright (c) 2015 Adriel Café, Filipe Santana, Fred Freitas

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
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copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
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