void parseCategoryFactory()

in src/main/java/org/apache/log4j/extras/DOMConfigurator.java [408:444]
34 lines of code
6 McCabe index (conditional complexity)

  void parseCategoryFactory(Element factoryElement) {
    String className = subst(factoryElement.getAttribute(CLASS_ATTR));

    if(EMPTY_STR.equals(className)) {
      LogLog.error("Category Factory tag " + CLASS_ATTR + " attribute not found.");
      LogLog.debug("No Category Factory configured.");
    }
    else {
      LogLog.debug("Desired category factory: ["+className+']');
      Object factory = OptionConverter.instantiateByClassName(className,
                                                                 LoggerFactory.class, 
                                                                 null);
      if (factory instanceof LoggerFactory) {
          catFactory = (LoggerFactory) factory;
      } else {
          LogLog.error("Category Factory class " + className + " does not implement org.apache.log4j.LoggerFactory");
      }
      PropertySetter propSetter = new PropertySetter(factory);

      Element  currentElement = null;
      Node     currentNode    = null;
      NodeList children       = factoryElement.getChildNodes();
      final int length        = children.getLength();

      for (int loop=0; loop < length; loop++) {
        currentNode = children.item(loop);
	if (currentNode.getNodeType() == Node.ELEMENT_NODE) {
	  currentElement = (Element)currentNode;
	  if (currentElement.getTagName().equals(PARAM_TAG)) {
	    setParameter(currentElement, propSetter);
	  } else {
           quietParseUnrecognizedElement(factory, currentElement, props);
      }
	}
      }
    }
  }