code: @Override
  	protected AbstractChainedGlobalProcessor<GlobalPostProcessingContext> buildProcessorByKey(String key) {
  
  		AbstractChainedGlobalProcessor<GlobalPostProcessingContext> processor = null;
  
  		if (key.equals(JawrConstant.GLOBAL_GOOGLE_CLOSURE_POSTPROCESSOR_ID)) {
  			processor = new ClosureGlobalPostProcessor();
  		}
  
  		return processor;
  	}
docs: Build the global preprocessor from the ID given in parameter
  
  @param key
  the ID of the preprocessor
  @return a global preprocessor