Erreur lors de la compilation du code avec l'API Protege

Question

Je suis novice dans l'API Protege et je viens de créer sur Eclipse une petite application qui utilise un fichier OWL externe. J'ai aussi importé toutes les bibliothèques nécessaires.

import java.util.Collection; 
import java.util.Iterator; 

import edu.stanford.smi.protege.exception.OntologyLoadException; 
import edu.stanford.smi.protegex.owl.ProtegeOWL; 
import edu.stanford.smi.protegex.owl.model.*; 

public class Trial { 
    public static void main(String[] args) throws OntologyLoadException { 
     String uri = "C:/Documents and Settings/Anto/Desktop/travel.owl"; 
     OWLModel owlModel = ProtegeOWL.createJenaOWLModelFromURI(uri); 
     Collection classes = owlModel.getUserDefinedOWLNamedClasses(); 

     for (Iterator it = classes.iterator(); it.hasNext();) { 
      OWLNamedClass cls = (OWLNamedClass) it.next(); 
      Collection instances = cls.getInstances(false); 
      System.out.println("Class " + cls.getBrowserText() + " (" 
        + instances.size() + ")"); 

      for (Iterator jt = instances.iterator(); jt.hasNext();) { 
       OWLIndividual individual = (OWLIndividual) jt.next(); 
       System.out.println(" - " + individual.getBrowserText()); 

      } 
     } 
    } 
} 

Quand je ne compilent cependant j'obtenir les erreurs suivantes:

WARNING: [Local Folder Repository] The specified file must be a directory.  
(C:\Documents and Settings\Anto\My Documents\Eclipse 
Workspace\ProtegeTrial\plugins\edu.stanford.smi.protegex.owl) 
LocalFolderRepository.update() 
SEVERE: Exception caught -- java.net.URISyntaxException: Illegal character in path at 
index 12: C:/Documents and Settings/CiuffreA/Desktop/travel.owl 
at java.net.URI$Parser.fail(URI.java:2809) 
at java.net.URI$Parser.checkChars(URI.java:2982) 
at java.net.URI$Parser.parseHierarchical(URI.java:3066) 
at java.net.URI$Parser.parse(URI.java:3014) 
at java.net.URI.<init>(URI.java:578) 
at edu.stanford.smi.protegex.owl.jena.JenaKnowledgeBaseFactory.getFileURI(Unknown Source) 
at edu.stanford.smi.protegex.owl.jena.JenaKnowledgeBaseFactory.loadKnowledgeBase(Unknown Source) 
at edu.stanford.smi.protege.model.Project.loadDomainKB(Unknown Source) 
at edu.stanford.smi.protege.model.Project.createDomainKnowledgeBase(Unknown Source) 
at edu.stanford.smi.protegex.owl.jena.creator.OwlProjectFromUriCreator.create(Unknown Source) 
at edu.stanford.smi.protegex.owl.ProtegeOWL.createJenaOWLModelFromURI(Unknown Source) 
at Trial.main(Trial.java:14) 


Exception in thread "main" java.lang.NullPointerException 
at edu.stanford.smi.protegex.owl.jena.JenaKnowledgeBaseFactory.loadKnowledgeBase(Unknown Source) 
at edu.stanford.smi.protege.model.Project.loadDomainKB(Unknown Source) 
at edu.stanford.smi.protege.model.Project.createDomainKnowledgeBase(Unknown Source) 
at edu.stanford.smi.protegex.owl.jena.creator.OwlProjectFromUriCreator.create(Unknown Source) 
at edu.stanford.smi.protegex.owl.ProtegeOWL.createJenaOWLModelFromURI(Unknown Source) 
at Trial.main(Trial.java:14) 

Est-ce que quelqu'un a une idée sur l'endroit où devrait être le problème?

Answer 1

Remplacer

String uri = "C:/Documents and Settings/Anto/Desktop/travel.owl"; 

avec

String uri = "file:///C:/Documents and Settings/Anto/Desktop/travel.owl";