soapservices.java

这是外国一个开源推理机

			String[] theStatementAsStringArray = new String[3];
			theStatementAsStringArray[0] = _valueToString(st.getSubject());
			theStatementAsStringArray[1] = _valueToString(st.getPredicate());
			theStatementAsStringArray[2] = _valueToString(st.getObject());

			result.add(theStatementAsStringArray);
		}

		return result;
	}

	protected String _valueToString(Value value) {
		if (value instanceof Literal) {
			return ((Literal)value).toString();
		}
		else if (value instanceof URI) {
			return ((URI)value).getURI();
		}
		else if (value instanceof BNode) {
			return ((BNode)value).getID();
		}
		else {
			throw new IllegalArgumentException("value should be a Literal, URI or BNode");
		}
	}


	public boolean hasStatement(String subj, String pred, String obj, boolean objIsLiteral)
	{
		boolean result = false;
		SessionContext sc = getContext();

		try {
			LocalService service = SesameServer.getLocalService();
			service.login(sc.user, sc.pass);
			LocalRepository rep = (LocalRepository)service.getRepository(sc.repository);
			Sail sail = rep.getSail();

			if (sail instanceof RdfSchemaSource) {
				RdfSchemaSource rdfSchema = (RdfSchemaSource)sail;

				Resource subjR = null;
				if (subj != null) {
					subjR = new URIImpl(subj);
				}

				URI predR = null;
				if (pred != null) {
					predR = new URIImpl(pred);
				}

				Value objV = null;
				if (obj != null) {
					if (objIsLiteral) {
						objV = new LiteralImpl(obj);
					}
					else {
						objV = new URIImpl(obj);
					}
				}

				result = rdfSchema.hasStatement(subjR, predR, objV);
			}
		}
		catch (Exception ex) {
			throw new RuntimeException(ex.getMessage());
		}

		return result;
	} // hasStatement()

	public boolean hasExplicitStatement(String subj, String pred, String obj, boolean objIsLiteral)
	{
		boolean result = false;
		SessionContext sc = getContext();

		try {

			LocalService service = SesameServer.getLocalService();
			service.login(sc.user, sc.pass);
			LocalRepository rep = (LocalRepository)service.getRepository(sc.repository);
			Sail sail = rep.getSail();
			if (sail instanceof RdfSchemaSource) {
				RdfSchemaSource rdfSchema = (RdfSchemaSource)sail;

				Resource subjR = null;
				if (subj != null) {
					subjR = new URIImpl(subj);
				}

				URI predR = null;
				if (pred != null) {
					predR = new URIImpl(pred);
				}

				Value objV = null;
				if (obj != null) {
					if (objIsLiteral) {
						objV = new LiteralImpl(obj);
					}
					else {
						objV = new URIImpl(obj);
					}
				}

				result = rdfSchema.hasExplicitStatement(subjR, predR, objV);
			}
		}
		catch (Exception ex) {
			throw new RuntimeException(ex.getMessage());
		}

		return result;
	} // hasExplicitStatement()

	public Vector getClasses()
	{
		Vector result = null;
		SessionContext sc = getContext();

		try {

			LocalService service = SesameServer.getLocalService();
			service.login(sc.user, sc.pass);
			LocalRepository rep = (LocalRepository)service.getRepository(sc.repository);

			Sail sail = rep.getSail();
			if (sail instanceof RdfSchemaSource) {
				RdfSchemaSource rdfSchema = (RdfSchemaSource)sail;

				StatementIterator iter = rdfSchema.getClasses();
				result = _statementIteratorToVector(iter);
				iter.close();
			}
		}
		catch (Exception ex) {
			throw new RuntimeException(ex.getMessage());
		}

		return result;
	} // getClasses()

	public boolean isClass(String resource)
	{
		boolean result = false;
		SessionContext sc = getContext();

		try {
			LocalService service = SesameServer.getLocalService();
			service.login(sc.user, sc.pass);
			LocalRepository rep = (LocalRepository)service.getRepository(sc.repository);
			Sail sail = rep.getSail();

			if (sail instanceof RdfSchemaSource) {
				RdfSchemaSource rdfSchema = (RdfSchemaSource)sail;
				result = rdfSchema.isClass(new URIImpl(resource));
			}
		}
		catch (Exception ex) {
			throw new RuntimeException(ex.getMessage());
		}

		return result;
	} // isClass()

	public Vector getProperties()
	{
		Vector result = null;
		SessionContext sc = getContext();

		try {
			LocalService service = SesameServer.getLocalService();
			service.login(sc.user, sc.pass);
			LocalRepository rep = (LocalRepository)service.getRepository(sc.repository);
			Sail sail = rep.getSail();

			if (sail instanceof RdfSchemaSource) {
				RdfSchemaSource rdfSchema = (RdfSchemaSource)sail;

				StatementIterator iter = rdfSchema.getProperties();
				result = _statementIteratorToVector(iter);
				iter.close();
			}
		}
		catch (Exception ex) {
			throw new RuntimeException(ex.getMessage());
		}

		return result;
	} // getProperties()

	public boolean isProperty(String resource)
	{
		boolean result = false;
		SessionContext sc = getContext();

		try {
			LocalService service = SesameServer.getLocalService();
			service.login(sc.user, sc.pass);
			LocalRepository rep = (LocalRepository)service.getRepository(sc.repository);
			Sail sail = rep.getSail();

			if (sail instanceof RdfSchemaSource) {
				RdfSchemaSource rdfSchema = (RdfSchemaSource)sail;
				result = rdfSchema.isProperty(new URIImpl(resource));
			}
		}
		catch (Exception ex) {
			throw new RuntimeException(ex.getMessage());
		}

		return result;
	} // isProperty()

	public Vector getSubClassOf(String subClass, String superClass)
	{
		Vector result = null;
		SessionContext sc = getContext();

		try {
			LocalService service = SesameServer.getLocalService();
			service.login(sc.user, sc.pass);
			LocalRepository rep = (LocalRepository)service.getRepository(sc.repository);
			Sail sail = rep.getSail();

			if (sail instanceof RdfSchemaSource) {
				RdfSchemaSource rdfSchema = (RdfSchemaSource)sail;

				URI rSubClass = null, rSuperClass = null;
				if (subClass != null) {
					rSubClass = new URIImpl(subClass);
				}
				if (superClass != null) {
					rSuperClass = new URIImpl(superClass);
				}

				StatementIterator iter = rdfSchema.getSubClassOf(rSubClass, rSuperClass);
				result = _statementIteratorToVector(iter);
				iter.close();
			}
		}
		catch (Exception ex) {
			throw new RuntimeException(ex.getMessage());
		}

		return result;
	} // getSubClassesOf()

	public Vector getDirectSubClassOf(String subClass, String superClass)
	{
		Vector result = null;
		SessionContext sc = getContext();

		try {
			LocalService service = SesameServer.getLocalService();
			service.login(sc.user, sc.pass);
			LocalRepository rep = (LocalRepository)service.getRepository(sc.repository);
			Sail sail = rep.getSail();

			if (sail instanceof RdfSchemaSource) {
				RdfSchemaSource rdfSchema = (RdfSchemaSource)sail;

				URI rSubClass = null, rSuperClass = null;
				if (subClass != null) {
					rSubClass = new URIImpl(subClass);
				}
				if (superClass != null) {
					rSuperClass = new URIImpl(superClass);
				}

				StatementIterator iter = rdfSchema.getDirectSubClassOf(rSubClass, rSuperClass);
				result = _statementIteratorToVector(iter);
				iter.close();
			}
		}
		catch (Exception ex) {
			throw new RuntimeException(ex.getMessage());
		}

		return result;
	} // getDirectSubClassesOf()

	public boolean isSubClassOf(String subClass, String superClass)
	{
		boolean result = false;
		SessionContext sc = getContext();

		try {
			LocalService service = SesameServer.getLocalService();
			service.login(sc.user, sc.pass);
			LocalRepository rep = (LocalRepository)service.getRepository(sc.repository);
			Sail sail = rep.getSail();

			if (sail instanceof RdfSchemaSource) {
				RdfSchemaSource rdfSchema = (RdfSchemaSource)sail;
				result = rdfSchema.isSubClassOf(new URIImpl(subClass), new URIImpl(superClass));
			}
		}
		catch (Exception ex) {
			throw new RuntimeException(ex.getMessage());
		}

		return result;
	} // isSubClassOf()

	public boolean isDirectSubClassOf(String subClass, String superClass)
	{
		boolean result = false;
		SessionContext sc = getContext();

		try {
			LocalService service = SesameServer.getLocalService();
			service.login(sc.user, sc.pass);
			LocalRepository rep = (LocalRepository)service.getRepository(sc.repository);
			Sail sail = rep.getSail();

			if (sail instanceof RdfSchemaSource) {
				RdfSchemaSource rdfSchema = (RdfSchemaSource)sail;
				result = rdfSchema.isDirectSubClassOf(new URIImpl(subClass), new URIImpl(superClass));
			}
		}
		catch (Exception ex) {
			throw new RuntimeException(ex.getMessage());
		}

		return result;
	} // isDirectSubClassOf()

	public Vector getSubPropertyOf(String subProperty, String superProperty)
	{
		Vector result = null;
		SessionContext sc = getContext();

		try {
			LocalService service = SesameServer.getLocalService();
			service.login(sc.user, sc.pass);
			LocalRepository rep = (LocalRepository)service.getRepository(sc.repository);
			Sail sail = rep.getSail();

			if (sail instanceof RdfSchemaSource) {
				RdfSchemaSource rdfSchema = (RdfSchemaSource)sail;

				URI rSubProperty = null, rSuperProperty = null;
				if (subProperty != null) {
					rSubProperty = new URIImpl(subProperty);
				}
				if (superProperty != null) {
					rSuperProperty = new URIImpl(superProperty);
				}

				StatementIterator iter = rdfSchema.getSubPropertyOf(rSubProperty, rSuperProperty);
				result = _statementIteratorToVector(iter);
				iter.close();
			}
		}
		catch (Exception ex) {
			throw new RuntimeException(ex.getMessage());
		}

		return result;
	} // getSubPropertyesOf()

	public Vector getDirectSubPropertyOf(String subProperty, String superProperty)
	{
		Vector result = null;
		SessionContext sc = getContext();

		try {
			LocalService service = SesameServer.getLocalService();
			service.login(sc.user, sc.pass);
			LocalRepository rep = (LocalRepository)service.getRepository(sc.repository);
			Sail sail = rep.getSail();

			if (sail instanceof RdfSchemaSource) {
				RdfSchemaSource rdfSchema = (RdfSchemaSource)sail;

				URI rSubProperty = null, rSuperProperty = null;
				if (subProperty != null) {
					rSubProperty = new URIImpl(subProperty);
				}
				if (superProperty != null) {
					rSuperProperty = new URIImpl(superProperty);
				}

				StatementIterator iter = rdfSchema.getDirectSubPropertyOf(rSubProperty, rSuperProperty);
				result = _statementIteratorToVector(iter);
				iter.close();
			}
		}
		catch (Exception ex) {
			throw new RuntimeException(ex.getMessage());
		}

		return result;
	} // getDirectSubPropertyesOf()

	public boolean isSubPropertyOf(String subProperty, String superProperty)
	{
		boolean result = false;
		SessionContext sc = getContext();

		try {
			LocalService service = SesameServer.getLocalService();
			service.login(sc.user, sc.pass);
			LocalRepository rep = (LocalRepository)service.getRepository(sc.repository);
			Sail sail = rep.getSail();

			if (sail instanceof RdfSchemaSource) {
				RdfSchemaSource rdfSchema = (RdfSchemaSource)sail;
				result = rdfSchema.isSubPropertyOf(new URIImpl(subProperty), new URIImpl(superProperty));
			}
		}
		catch (Exception ex) {
			throw new RuntimeException(ex.getMessage());
		}

		return result;
	} // isSubPropertyOf()

	public boolean isDirectSubPropertyOf(String subProperty, String superProperty)
	{
		boolean result = false;
		SessionContext sc = getContext();

		try {
			LocalService service = SesameServer.getLocalService();
			service.login(sc.user, sc.pass);