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AGWilburwine.java

package com.franz.agbase.examples;



import com.franz.agbase.*;



public class AGWilburwine {



    /**

     * Demonstrates loading and querying of the Wilburwine dataset.

     * 

     * @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("wilburwine", AGPaths.TRIPLE_STORES);



        // Load the wilburwine dataset

        AGLoadNtriples.loadNTriplesWithTiming(ts,AGPaths.dataSources("wilburwine.ntriples"));

        

        // Index the triple store for faster querying

        AGIndexAllTriples.indexAllTriplesWithTiming(ts);



        // Register a wine namespace

        ts.registerNamespace("wine", "http://www.w3.org/TR/2003/CR-owl-guide-20030818/wine#");

        

        // Get triples having subject CabernetSauvignonGrape and show them

        System.out.println("Triples with Subject: CabernetSauvignonGrape");

        TriplesIterator cc = ts.getStatements("!wine:CabernetSauvignonGrape",null, null);

        AGUtils.showTriples(cc);

        

        // Close the triple store and disconnect from the server.

        ts.closeTripleStore();

        ags.disable();

    }



}
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