通过OWL API访问本体

Question

我想通过使用Eclipse的OWL API访问我的本体和SWRL规则。有没有人能帮我做一个确切的程序来告诉我该怎么做？

我尝试了以下代码，但似乎没有得到任何响应。请记住，我的Java技能很差。

我需要一个确切的程序来解决这个问题。

我已经有的代码是：

public static void main(String[] args) {
  File file = new File("file:c:/Users/DTN/Desktop/Final SubmissionFilteringMechanism_Ontology.owl");
  OWLOntologyManager m = OWLManager.createOWLOntologyManager();
  OWLDataFactory f = OWLManager.getOWLDataFactory();
  OWLOntology o = null;

  public void testAddAxioms() {
    try {
        o = m.loadOntologyFromOntologyDocument(Ont_Base_IRI);
        OWLClass clsA = f.getOWLClass(IRI.create(Ont_Base_IRI + "ClassA"));
        OWLClass clsB = f.getOWLClass(IRI.create(Ont_Base_IRI + "ClassB"));
        OWLAxiom ax1 = f.getOWLSubClassOfAxiom(clsA, clsB);
        AddAxiom addAxiom1 = new AddAxiom(o, ax1);
        m.applyChange(addAxiom1);

        for (OWLClass cls : o.getClassesInSignature()) {
            EditText edit = (EditText) findViewById(R.id.editText1);
            edit.setText((CharSequence) cls);
        }

        m.removeOntology(o);
    } catch (Exception e) {
        EditText edit = (EditText) findViewById(R.id.editText1);
        edit.setText("Not successfull");
    }
  }
}

Answer 1

这里提供了装载和修改本体的OWLAPI示例，您将看到一个一般性的介绍和一组特定的示例。如果您需要某些特定代码段的帮助，您可以发布到OWLAPI邮件列表。

编译以下内容的代码的版本：

import java.io.File;

import org.semanticweb.owlapi.apibinding.OWLManager;
import org.semanticweb.owlapi.model.AddAxiom;
import org.semanticweb.owlapi.model.IRI;
import org.semanticweb.owlapi.model.OWLAxiom;
import org.semanticweb.owlapi.model.OWLClass;
import org.semanticweb.owlapi.model.OWLDataFactory;
import org.semanticweb.owlapi.model.OWLOntology;
import org.semanticweb.owlapi.model.OWLOntologyCreationException;
import org.semanticweb.owlapi.model.OWLOntologyManager;

public class Snippet {

    public static void main(String[] args) throws OWLOntologyCreationException {
        File file = new File(
                "file:///c/Users/DTN/Desktop/Final SubmissionFilteringMechanism_Ontology.owl");
        OWLOntologyManager m = OWLManager.createOWLOntologyManager();
        OWLDataFactory f = OWLManager.getOWLDataFactory();
        OWLOntology o;
        o = m.loadOntologyFromOntologyDocument(file);
        OWLClass clsA = f.getOWLClass(IRI.create("urn:test#ClassA"));
        OWLClass clsB = f.getOWLClass(IRI.create("urn:test#ClassB"));
        OWLAxiom ax1 = f.getOWLSubClassOfAxiom(clsA, clsB);
        AddAxiom addAxiom1 = new AddAxiom(o, ax1);
        m.applyChange(addAxiom1);
        for (OWLClass cls : o.getClassesInSignature()) {
            System.out.println(cls.getIRI());
        }
        m.removeOntology(o);
    }
}