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HDT Core Library Implementation in Java
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/*
* File: $HeadURL: https://hdt-java.googlecode.com/svn/trunk/hdt-java/examples/org/rdfhdt/hdt/examples/ExampleGenerate.java $
* Revision: $Rev: 191 $
* Last modified: $Date: 2013-03-03 11:41:43 +0000 (dom, 03 mar 2013) $
* Last modified by: $Author: mario.arias $
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Contacting the authors:
* Mario Arias: [email protected]
* Javier D. Fernandez: [email protected]
* Miguel A. Martinez-Prieto: [email protected]
* Alejandro Andres: [email protected]
*/
package org.rdfhdt.hdt.example;
import org.rdfhdt.hdt.enums.RDFNotation;
import org.rdfhdt.hdt.hdt.HDT;
import org.rdfhdt.hdt.hdt.HDTManager;
import org.rdfhdt.hdt.options.HDTSpecification;
/**
* @author mario.arias
*
*/
public class ExampleGenerate {
public static void main(String[] args) throws Exception {
// Configuration variables
String baseURI = "http://example.com/3.5";
//String rdfInput = "/nfsmnt/proto_space/dbpedia/3.5/dbpedia";
String rdfInput = "/nfsmnt/proto_space/dbpedia/3.5/dbpedia";
String inputType = "ntriples";
String hdtOutput = "/home/ludab/hdt-java/hdt-java-core/3_5_0.hdt";
String configFile = "/home/ludab/hdt-java/hdt-java-core/hdt.cfg";
// Create HDT from RDF file
HDT hdt = HDTManager.generateHDT(rdfInput, baseURI, RDFNotation.parse(inputType), new HDTSpecification(configFile), null);
// Add additional domain-specific properties to the header:
//Header header = hdt.getHeader();
//header.insert("myResource1", "property" , "value");
//System.out.println("now try to save to file");
// Save generated HDT to a file
hdt.saveToHDT(hdtOutput, null);
//HDT mhdt = HDTManager.loadHDT("/home/ludab/hdt-java/hdt-java-core/3_8_0.hdt", null);
//HDT hdt = HDTManager.mapHDT(args[0], null);
hdt = HDTManager.indexedHDT(hdt,null);
if (hdt!=null) {
hdt.close();
}
}
}