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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jena.examples.rdf ;
import org.apache.jena.rdf.model.*;
import org.apache.jena.util.FileManager;
import org.apache.jena.vocabulary.*;
import java.io.*;
/** Tutorial navigating a model
*/
public class Tutorial06 extends Object {
static final String inputFileName = "vc-db-1.rdf";
static final String johnSmithURI = "http://somewhere/JohnSmith/";
public static void main (String args[]) {
// create an empty model
Model model = ModelFactory.createDefaultModel();
// use the FileManager to find the input file
InputStream in = FileManager.get().open(inputFileName);
if (in == null) {
throw new IllegalArgumentException( "File: " + inputFileName + " not found");
}
// read the RDF/XML file
model.read(new InputStreamReader(in), "");
// retrieve the Adam Smith vcard resource from the model
Resource vcard = model.getResource(johnSmithURI);
// retrieve the value of the N property
Resource name = (Resource) vcard.getRequiredProperty(VCARD.N)
.getObject();
// retrieve the given name property
String fullName = vcard.getRequiredProperty(VCARD.FN)
.getString();
// add two nick name properties to vcard
vcard.addProperty(VCARD.NICKNAME, "Smithy")
.addProperty(VCARD.NICKNAME, "Adman");
// set up the output
System.out.println("The nicknames of \"" + fullName + "\" are:");
// list the nicknames
StmtIterator iter = vcard.listProperties(VCARD.NICKNAME);
while (iter.hasNext()) {
System.out.println(" " + iter.nextStatement().getObject()
.toString());
}
}
}