How to use

getFactory

method

in

org.apache.jena.reasoner.ReasonerRegistry

/**
 * Create and return a new instance of the reasoner identified by
 * the given uri.
 * @param uri the uri of the reasoner to be created, expressed as a simple string
 * @param configuration an optional set of configuration information encoded in RDF this
 * parameter can be null if no configuration information is required.
 * @return a reaoner instance
 * @throws ReasonerException if there is not such reasoner or if there is
 * some problem during instantiation
 */
public Reasoner create(String uri, Resource configuration) throws ReasonerException {
  ReasonerFactory factory = getFactory(uri);
  if (factory != null) {
    return factory.create(configuration);
  } else {
    throw new ReasonerException("Attempted to instantiate an unknown reasoner: " + uri);
  }
}

/**
 * Create and return a new instance of the reasoner identified by
 * the given uri.
 * @param uri the uri of the reasoner to be created, expressed as a simple string
 * @param configuration an optional set of configuration information encoded in RDF this
 * parameter can be null if no configuration information is required.
 * @return a reaoner instance
 * @throws ReasonerException if there is not such reasoner or if there is
 * some problem during instantiation
 */
public Reasoner create(String uri, Resource configuration) throws ReasonerException {
  ReasonerFactory factory = getFactory(uri);
  if (factory != null) {
    return factory.create(configuration);
  } else {
    throw new ReasonerException("Attempted to instantiate an unknown reasoner: " + uri);
  }
}

/**
  Answer a ReasonerFactory which delivers reasoners with the given
  URL <code>reasonerURL</code>. If there is no such reasoner, throw
  an <code>UnknownreasonerException</code>.
*/
public static ReasonerFactory getReasonerFactoryByURL( Resource root, Resource reasonerURL )
  {
  String url = reasonerURL.getURI();
  ReasonerFactory factory = ReasonerRegistry.theRegistry().getFactory( url );
  if (factory == null) throw new UnknownReasonerException( root, reasonerURL );
  return factory;
  }
}

/**
  Answer a ReasonerFactory which delivers reasoners with the given
  URL <code>reasonerURL</code>. If there is no such reasoner, throw
  an <code>UnknownreasonerException</code>.
*/
public static ReasonerFactory getReasonerFactoryByURL( Resource root, Resource reasonerURL )
  {
  String url = reasonerURL.getURI();
  ReasonerFactory factory = ReasonerRegistry.theRegistry().getFactory( url );
  if (factory == null) throw new UnknownReasonerException( root, reasonerURL );
  return factory;
  }
}