code: public static ConfigurableEmitter loadEmitter(String ref)
  			throws IOException {
  		return loadEmitter(ResourceLoader.getResourceAsStream(ref), null);
  	}
docs: Load a single emitter from an XML file
  
  @param ref
  The reference to the emitter XML file to load (classpath or
  file)
  @return The configured emitter
  @throws IOException
  Indicates a failure to find, read or parse the XML file