Method sortByQueueMode

routing/MessageRouter.java:504–545

Sorts/shuffles the given list according to the current sending queue mode. The list can contain either Message or Tuple objects. Other objects cause error. @param list The list to sort or shuffle @return The sorted/shuffled list

(List list)

	 * @return The sorted/shuffled list
	 */
	@SuppressWarnings(value = "unchecked") /* ugly way to make this generic */
	protected List sortByQueueMode(List list) {
		switch (sendQueueMode) {
		case Q_MODE_RANDOM:
			Collections.shuffle(list, new Random(SimClock.getIntTime()));
			break;
		case Q_MODE_FIFO:
			Collections.sort(list, 
					new Comparator() {
				/** Compares two tuples by their messages' receiving time */
				public int compare(Object o1, Object o2) {
					double diff;
					Message m1, m2;
					
					if (o1 instanceof Tuple) {
						m1 = ((Tuple<Message, Connection>)o1).getKey();
						m2 = ((Tuple<Message, Connection>)o2).getKey();
					}
					else if (o1 instanceof Message) {
						m1 = (Message)o1;
						m2 = (Message)o2;
					}
					else {
						throw new SimError("Invalid type of objects in " + 
								"the list");
					}
					
					diff = m1.getReceiveTime() - m2.getReceiveTime();
					if (diff == 0) {
						return 0;
					}
					return (diff < 0 ? -1 : 1);
				}
			});
			break;
		/* add more queue modes here */
		default:
			throw new SimError("Unknown queue mode " + sendQueueMode);
		}
		
		return list;
	}

	/**
	 * Gives the order of the two given messages as defined by the current