خطأ عند ترجمة التعليمات البرمجية مع API المحمي

Question

وأنا جديدة على المحمي API ولقد خلقت فقط على الكسوف تطبيق صغير الذي يستخدم ملف OWL الخارجي. كما فعلت استيراد كافة المكتبات اللازمة.

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());

            }
        }
    }
}

وعندما لا تجمع إلا أحصل على الأخطاء التالية:

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)

هل لديها فكرة عن المكان الذي يجب أن تكون المشكلة؟

Answer 1

واستبدال

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

مع

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