package org.lsst.ccs.command;
   
   /**
    *
    * @author tonyj
    */
   public class RoutingCommandSet implements CommandSet {
   
       RoutingDictionary dict = new RoutingDictionary();
      
      public void add(String route, CommandSet cs) {
          Dictionary subDict = cs.getCommandDictionary();
          dict.add(route, subDict);
      }
      
      public void remove(String route) {
          dict.remove(route);
      }
      
      @Override
      public Dictionary getCommandDictionary() {
          return dict;
      }
  
      @Override
      public Object invoke(BasicCommand command) throws CommandInvocationException {
          DictionaryCommand dc = dict.findCommand(command);
          if (dc == null) {
             throw new CommandInvocationException("Error: No handler found for command %s with %d arguments",command.getCommand(),command.getArgumentCount());
          }
          return null;
      }
      
  }