code: public boolean supportsCategory(String category) {
  		if (category == null) {
  			return false;
  		}
  
  		List<String> categories = this.getCategories();
  		for (String cat : categories) {
  			if (cat.compareToIgnoreCase(category) == 0) {
  				return true;
  			}
  		}
  
  		return false;
  	}
docs: Returns true if there is any service registered that supports the
  category parameter
  
  @param category
  @return