AGWordNet.java
package com.franz.agbase.examples;
import com.franz.agbase.*;
import java.io.File;
public class AGWordNet {
/**
* Demonstrates loading and indexing a triple store with WordNet data
*
* The WordNet data for this example is available at
* http://www.w3.org/2006/03/wn/wn20/download/wn20full.zip
*
* This example assumes that the data will be unpacked into the
* wordnet/ subdir of the AGPaths.DATA_SOURCES directory.
*
* @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 fresh triple-store for this example.
AllegroGraph ts = ags.renew("WordNet", AGPaths.TRIPLE_STORES);
// Get the list of rdf files to load -- assumes the WordNet
// directory contains only files that are to be loaded
String wordnetroot = AGPaths.dataSources("wordnet/");
File wordnetdir = new File(wordnetroot);
File[] nt = wordnetdir.listFiles();
// Load all of the necessary files into a store
long start = System.currentTimeMillis();
for (int i = 0; i < nt.length; i++) {
String rdfFile = wordnetroot + nt[i].getName();
System.out.println(i + " of " + nt.length + ": " + rdfFile);
AGLoadRDF.loadRDFWithTiming(ts, rdfFile);
}
System.out.println("Total: loaded " + ts.numberOfTriples()
+ " triples in " + AGUtils.elapsedTime(start));
// Index the store
AGIndexAllTriples.indexAllTriplesWithTiming(ts);
// Close the store and disconnect from the server
ts.closeTripleStore();
ags.disable();
}
}
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