public PHPSourceElementRequestor(ISourceElementRequestor requestor, IModuleSource sourceModule) {
    super(requestor);

    // Load PHP source element requester extensions
    final IConfigurationElement[] elements =
        Platform.getExtensionRegistry()
            .getConfigurationElementsFor(PHPCorePlugin.ID, "phpSourceElementRequestors");
    final List<PHPSourceElementRequestorExtension> requestors =
        new ArrayList<PHPSourceElementRequestorExtension>(elements.length);
    for (final IConfigurationElement element : elements) {
      try {
        final PHPSourceElementRequestorExtension extension =
            (PHPSourceElementRequestorExtension) element.createExecutableExtension("class");
        extension.setRequestor(fRequestor);
        extension.setSourceModule(sourceModule);
        requestors.add(extension);
      } catch (final CoreException e) {
        GeneratorBeautifierPlugin.log(e);
        // Logger.logException(e);
      }
    }
    extensions = requestors.toArray(new PHPSourceElementRequestorExtension[requestors.size()]);
  }