How to use

mapDynamicURI

method

in

org.apache.jena.sparql.util.MappedLoader

public static Class<?> loadClass(String uri, Class<?> expectedClass) {
  String mappedUri = mapDynamicURI(uri);
  if (mappedUri == null)
    return null;
  return ClsLoader.loadClass(mappedUri, expectedClass);
}

public static boolean isPossibleDynamicURI(String uri, Class<?> expectedClass) {
  String mappedUri = mapDynamicURI(uri);
  if (mappedUri == null)
    return false;
  // Need to force the load to check everything.
  // Callers (who are expectedClass sensitive) should have
  // an "alreadyLoaded" cache
  return loadClass(uri, expectedClass) != null;
}

/** Lookup by URI */
public PropertyFunctionFactory get(String uri)
{
  String mappedUri = MappedLoader.mapDynamicURI(uri) ;
  if ( mappedUri != null )
    uri = mappedUri ; 
  
  PropertyFunctionFactory ext = registry.get(uri) ;
  if ( ext != null )
    return ext ;
  
  if ( attemptedLoads.contains(uri) )
    return null ;
  Class<?> extClass = MappedLoader.loadClass(uri, PropertyFunction.class) ;
  if ( extClass == null )
    return null ;
  // Register it
  put(mappedUri, extClass) ;
  attemptedLoads.add(uri) ;
  // Call again to get it.
  return registry.get(uri) ;
}