AGISWCASWC2007.java

package com.franz.agbase.examples;

import com.franz.agbase.*;

public class AGISWCASWC2007 {

    /**
     * Demonstrates loading and querying of the ISWC+ASWC 2007 RDF data set.
     * 
     * @param args unused
     * @throws AllegroGraphException
     */
    public static void main(String[] args) throws AllegroGraphException {
        // Connect to server, which must already be running.
        AllegroGraphConnection ags = new AllegroGraphConnection();
        try {
            ags.enable();
        } catch (Exception e) {
            throw new AllegroGraphException("Server connection problem", e);
        }

        // Create a fresh triple store
        AllegroGraph ts = ags.renew("iwscawsc2007", AGPaths.TRIPLE_STORES);

        // Load the data
        AGLoadRDF.loadRDFWithTiming(ts,AGPaths.dataSources("iswc-aswc-2007-complete.rdf"));
        
        // Index the triple store for faster querying
        AGIndexAllTriples.indexAllTriplesWithTiming(ts);

        // Query the data set for a summary of the business intelligence
        // tutorial being taught by Jans Aasman
        String query =
        "PREFIX tutorial: <http://data.semanticweb.org/conference/iswc-aswc/2007/tutorial/> " +
        "PREFIX ical: <http://www.w3.org/2002/12/cal/ical#> " +
        "SELECT ?summary " +
        "WHERE { tutorial:business-intelligence ical:summary ?summary }";

        // Query the store and show the results
        SPARQLQuery sq = new SPARQLQuery();
        sq.setTripleStore(ts);
        sq.setQuery(query);
        AGSparqlSelect.doSparqlSelect(sq);
        
        // Close the triple store and disconnect from the server.
        ts.closeTripleStore();
        ags.disable();
    }

}

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