AGRDFAxioms.java

package com.franz.agbase.examples;

import com.franz.agbase.*;

public class AGRDFAxioms {

    /**
     * Demonstrates loading the RDF Axioms.
     * 
     * @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("RDFAxioms", AGPaths.TRIPLE_STORES);

        // Load the RDF axioms.
        String rdf = AGPaths.dataSources("rdf-axioms.rdf");
        System.out.println("Loading RDF from " + rdf);
        Long n = ts.loadRDFXML(rdf);
        System.out.println("Loaded " + n + " triples.");

        // Index all triples for faster querying and wait until done.
        ts.indexAllTriples(true);
        
        // Get all triples and show them.
        TriplesIterator cc = ts.getStatements(null, null, null);
        AGUtils.showTriples(cc);
        
        // Close the triple store and disconnect from the server.
        ts.closeTripleStore();
        ags.disable();
    }
    
}

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