-- 作者：tianshiwgq
-- 发布时间：12/5/2008 12:05:00 PM
-- 求助:owl-s api 中的matchmaker 例子出错,高人请指教
修改后的原代码:
public class Matchmaker {
OWLKnowledgeBase kb;
public static class Match {
public static String[] MATCHES = {"EXACT", "SUBSUME", "RELAXED", "FAIL"};
public static int EXACT = 0;
public static int SUBSUME = 1;
public static int RELAXED = 2;
public static int FAIL = 3;
int matchType;
boolean listMatch;
Service outputService;
Output output;
Service inputService;
Input input;
public Match(int matchType, Output output, Input input) {
this.matchType = matchType;
this.outputService = output.getService();
this.output = output;
this.inputService = input.getService();
this.input = input;
}
public String toString() {
String str = "";
str += MATCHES[matchType] + " ";
if(listMatch)
str += ".LIST";
str += outputService.getLocalName() + "." + output.getLocalName();
str += " -> ";
str += inputService.getLocalName() + "." + input.getLocalName();
return str;
}
}
public Matchmaker() {
kb = OWLFactory.createKB();
kb.setReasoner("Pellet");
} public void addOntology( String ont ) throws FileNotFoundException, URISyntaxException {
System.out.println( "Reading " + ont );
kb.read( new URI( ont ) );
}
public void addOntology( URI ont ) throws FileNotFoundException {
System.out.println( "Reading " + ont );
kb.read( ont );
}
public List findServices(boolean getProducers) {
String hasParameter = getProducers ? "process:hasOutput" : "process:hasInput";
String queryString =
"SELECT * " +
"WHERE " +
" (?process rdf:type process:Process)" +
" (?process " + hasParameter + " ?param)" +
"USING " +
" process FOR <http://www.daml.org/services/owl-s/1.1/Process.owl#>";
return kb.query( queryString );
} public List findOutputs() {
return findServices(true);
}
public List findInputs() {
return findServices(false);
}
public int getMatchType(OWLType outputType, OWLType inputType) {
if(outputType.isEquivalent(inputType))
return Match.EXACT;
else if(outputType.isSubTypeOf(inputType))
return Match.SUBSUME;
else if(inputType.isSubTypeOf(outputType))
return Match.RELAXED;
else
return Match.FAIL;
} public List displayAllMatches() {
List matches = new ArrayList();
System.out.println( "Computing matches..." );
List producers = findOutputs();
List consumers = findInputs();
Iterator i = producers.iterator();
while( i.hasNext() ) {
ValueMap binding = (ValueMap) i.next();
Output output = (Output) ((OWLIndividual) binding.getValue("param")).castTo(Output.class);
OWLType outputType = output.getParamType();
Iterator j = consumers.iterator();
while( j.hasNext() ) {
binding = (ValueMap) j.next() ;
Input input = (Input) ((OWLIndividual) binding.getValue("param")).castTo(Input.class);
OWLType inputType = input.getParamType();
// System.out.println("Trying " +
// URIUtils.getLocalName(outputType.getURI()) + " " +
// URIUtils.getLocalName(inputType.getURI()) + " " +
// producer.getLocalName() + " " +
// output.getLocalName() + " " +
// consumer.getLocalName() + " " +
// input.getLocalName()
// );
int matchType = getMatchType(outputType, inputType);
if(matchType != Match.FAIL)
matches.add(new Match(matchType, output, input));
}
}
return matches;
} public static void printIterator(Iterator i) {
if(i.hasNext()) {
while (i.hasNext())
System.out.println( i.next() );
}
else
System.out.println("<EMPTY>");
System.out.println();
}
public static void main(String[] args) throws FileNotFoundException, URISyntaxException {
Matchmaker matchmaker = new Matchmaker();
matchmaker.addOntology("http://localhost:8080/BNPrice.owl");
matchmaker.addOntology("http://www.mindswap.org/2004/owl-s/1.1/BookFinder.owl");
matchmaker.addOntology("http://www.mindswap.org/2004/owl-s/1.1/CurrencyConverter.owl");
matchmaker.addOntology("http://www.mindswap.org/2004/owl-s/1.1/Dictionary.owl");
matchmaker.addOntology("http://www.mindswap.org/2004/owl-s/1.1/ZipCodeFinder.owl");
matchmaker.addOntology("http://www.mindswap.org/2004/owl-s/1.1/FindLatLong.owl");
matchmaker.addOntology("http://www.mindswap.org/2004/owl-s/1.1/BabelFishTranslator.owl#");
List matches = matchmaker.displayAllMatches();
System.out.println();
System.out.println("Matches:");
printIterator(matches.iterator());
}
}
运行错误,如下,不知道为什么,总是读不到顶极本体
Reading http://localhost:8080/BNPrice.owl
WARNING: Cannot read file http://www.daml.org/services/owl-s/1.1/Service.owl
WARNING: The import file http://www.daml.org/services/owl-s/1.1/Service.owl cannot be parsed
WARNING: Cannot read file http://www.daml.org/services/owl-s/1.1/Process.owl
WARNING: The import file http://www.daml.org/services/owl-s/1.1/Process.owl cannot be parsed
WARNING: Cannot read file http://www.daml.org/services/owl-s/1.1/generic/ObjectList.owl
WARNING: The import file http://www.daml.org/services/owl-s/1.1/generic/ObjectList.owl cannot be parsed
WARNING: Cannot read file http://www.daml.org/services/owl-s/1.1/generic/Expression.owl
WARNING: The import file http://www.daml.org/services/owl-s/1.1/generic/Expression.owl cannot be parsed
WARNING: Cannot read file http://www.daml.org/services/owl-s/1.1/Service.owl
WARNING: The import file http://www.daml.org/services/owl-s/1.1/Service.owl cannot be parsed
WARNING: Cannot read file http://www.mindswap.org/ontologies/bibtex.owl
WARNING: The import file http://www.mindswap.org/ontologies/bibtex.owl cannot be parsed
WARNING: Cannot read file http://www.mindswap.org/2004/owl-s/concepts.owl
WARNING: The import file http://www.mindswap.org/2004/owl-s/concepts.owl cannot be parsed
WARNING: Cannot read file http://localhost:8080/Grounding.owl
WARNING: The import file http://localhost:8080/Grounding.owl cannot be parsed
Reading http://www.mindswap.org/2004/owl-s/1.1/BookFinder.owl
WARNING: Cannot read file http://www.mindswap.org/2004/owl-s/1.1/BookFinder.owl
Exception in thread "main" java.io.FileNotFoundException: The file http://www.mindswap.org/2004/owl-s/1.1/BookFinder.owl cannot be parsed
at impl.jena.OWLReaderImpl.createInputSource(OWLReaderImpl.java:125)
at impl.jena.OWLReaderImpl.createInputSource(OWLReaderImpl.java:109)
at impl.jena.OWLReaderImpl.read(OWLReaderImpl.java:169)
at impl.jena.OWLKnowledgeBaseImpl.read(OWLKnowledgeBaseImpl.java:245)
at examples.Matchmaker.addOntology(Matchmaker.java:76)
at examples.Matchmaker.main(Matchmaker.java:170)
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