/**
* 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 org.apache.nutch.ontology.jena;
import org.apache.nutch.ontology.*;
import org.apache.nutch.protocol.ProtocolException;
import org.apache.nutch.parse.ParseException;
import org.apache.hadoop.conf.Configuration;
import org.apache.nutch.util.NutchConfiguration;
import junit.framework.TestCase;
import java.util.Iterator;
import java.util.List;
import java.util.LinkedList;
import java.lang.Exception;
/**
* Unit tests for Ontology
*
* @author michael j pan
*/
public class TestOntology extends TestCase {
private String fileSeparator = System.getProperty("file.separator");
// This system property is defined in ./src/plugin/build-plugin.xml
private String sampleDir = System.getProperty("test.data",".");
// Make sure sample files are copied to "test.data" as specified in
// ./src/plugin/ontology/build.xml during plugin compilation.
// Check ./src/plugin/ontology/sample/README.txt for what they are.
private String[] sampleFiles = {"time.owl"};
private static Ontology ontology;
private Configuration conf;
public TestOntology(String name) {
super(name);
}
protected void setUp() {
this.conf = NutchConfiguration.create();
}
protected void tearDown() {}
public void testIt() throws ProtocolException, ParseException, Exception {
String className = "Season";
String[] subclassNames =
new String[] {"Spring", "Summer", "Fall", "Winter"};
if (ontology==null) {
try {
ontology = new OntologyFactory(this.conf).getOntology();
} catch (Exception e) {
throw new Exception("Failed to instantiate ontology");
}
}
//foreach sample file
for (int i=0; i<sampleFiles.length; i++) {
//construct the url
String urlString = "file:" + sampleDir + fileSeparator + sampleFiles[i];
ontology.load(new String[] {urlString});
List subclassList = new LinkedList();
Iterator iter = ontology.subclasses(className);
while (iter.hasNext()) {
String subclassLabel = (String) iter.next();
System.out.println(subclassLabel);
subclassList.add(subclassLabel);
}
for (int j=0; j<subclassNames.length; j++) {
assertTrue(subclassList.contains(subclassNames[j]));
}
}
}
}