code: 	public BeanDefinitionHolder decorate(Node node, BeanDefinitionHolder holder,
  			ParserContext parserContext) {
  		BeanDefinition filterChainProxy = holder.getBeanDefinition();
  
  		ManagedList<BeanMetadataElement> securityFilterChains = new ManagedList<BeanMetadataElement>();
  		Element elt = (Element) node;
  
  		MatcherType matcherType = MatcherType.fromElement(elt);
  
  		List<Element> filterChainElts = DomUtils.getChildElementsByTagName(elt,
  				Elements.FILTER_CHAIN);
  
  		for (Element chain : filterChainElts) {
  			String path = chain
  					.getAttribute(HttpSecurityBeanDefinitionParser.ATT_PATH_PATTERN);
  			String filters = chain
  					.getAttribute(HttpSecurityBeanDefinitionParser.ATT_FILTERS);
  
  			if (!StringUtils.hasText(path)) {
  				parserContext.getReaderContext().error(
  						"The attribute '"
  								+ HttpSecurityBeanDefinitionParser.ATT_PATH_PATTERN
  								+ "' must not be empty", elt);
  			}
  
  			if (!StringUtils.hasText(filters)) {
  				parserContext.getReaderContext().error(
  						"The attribute '" + HttpSecurityBeanDefinitionParser.ATT_FILTERS
  								+ "'must not be empty", elt);
  			}
  
  			BeanDefinition matcher = matcherType.createMatcher(path, null);
  
  			if (filters.equals(HttpSecurityBeanDefinitionParser.OPT_FILTERS_NONE)) {
  				securityFilterChains.add(createSecurityFilterChain(matcher,
  						new ManagedList(0)));
  			}
  			else {
  				String[] filterBeanNames = StringUtils
  						.tokenizeToStringArray(filters, ",");
  				ManagedList filterChain = new ManagedList(filterBeanNames.length);
  
  				for (String name : filterBeanNames) {
  					filterChain.add(new RuntimeBeanReference(name));
  				}
  
  				securityFilterChains.add(createSecurityFilterChain(matcher, filterChain));
  			}
  		}
  
  		filterChainProxy.getConstructorArgumentValues().addGenericArgumentValue(
  				securityFilterChains);
  
  		return holder;
  	}
  
  