Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
SingleCorrelatorCallback |
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| 1.3333333333333333;1.333 |
1 | /* | |
2 | * $Id: SingleCorrelatorCallback.java 11567 2008-04-11 13:08:05Z dirk.olmes $ | |
3 | * -------------------------------------------------------------------------------------- | |
4 | * Copyright (c) MuleSource, Inc. All rights reserved. http://www.mulesource.com | |
5 | * | |
6 | * The software in this package is published under the terms of the CPAL v1.0 | |
7 | * license, a copy of which has been included with this distribution in the | |
8 | * LICENSE.txt file. | |
9 | */ | |
10 | package org.mule.routing; | |
11 | ||
12 | import org.mule.api.MuleEvent; | |
13 | import org.mule.api.MuleMessage; | |
14 | import org.mule.api.routing.RoutingException; | |
15 | import org.mule.routing.inbound.EventGroup; | |
16 | ||
17 | import org.apache.commons.logging.Log; | |
18 | import org.apache.commons.logging.LogFactory; | |
19 | ||
20 | /** | |
21 | * A Correlator that correlates one message at a time | |
22 | */ | |
23 | 0 | public class SingleCorrelatorCallback implements EventCorrelatorCallback |
24 | { | |
25 | /** | |
26 | * logger used by this class | |
27 | */ | |
28 | 0 | protected transient final Log logger = LogFactory.getLog(CollectionCorrelatorCallback.class); |
29 | ||
30 | /** | |
31 | * The <code>SingleResponseRouter</code> will return true if the event group | |
32 | * size is 1. If the group size is greater than 1, a warning will be logged. | |
33 | * | |
34 | * @param events | |
35 | * @return true if the event group size is 1 or greater | |
36 | * @see {@link org.mule.routing.response.AbstractResponseAggregator#shouldAggregateEvents(EventGroup)} | |
37 | */ | |
38 | public boolean shouldAggregateEvents(EventGroup events) | |
39 | { | |
40 | 0 | if (events.expectedSize() > 1) |
41 | { | |
42 | 0 | logger.warn("CorrelationGroup's expected size is not 1." |
43 | + " The SingleResponseAggregator will only handle single replyTo events;" | |
44 | + " if there will be multiple events for a single request, " | |
45 | + " use the 'ResponseCorrelationAggregator'"); | |
46 | } | |
47 | ||
48 | 0 | return (events.size() != 0); |
49 | } | |
50 | ||
51 | /** | |
52 | * The <code>SingleResponseRouter</code> will always return the first event of | |
53 | * an event group. | |
54 | * | |
55 | * @param events the event group for this request | |
56 | * @return an aggregated message | |
57 | * @throws org.mule.api.routing.RoutingException | |
58 | * if the aggregation fails. in | |
59 | * this scenario the whole event group is removed and passed to the | |
60 | * exception handler for this componenet | |
61 | * @see {@link org.mule.routing.response.AbstractResponseAggregator#aggregateEvents(EventGroup)} | |
62 | */ | |
63 | public MuleMessage aggregateEvents(EventGroup events) throws RoutingException | |
64 | { | |
65 | 0 | return ((MuleEvent) events.iterator().next()).getMessage(); |
66 | } | |
67 | ||
68 | public EventGroup createEventGroup(MuleEvent event, Object id) | |
69 | { | |
70 | 0 | return new EventGroup(id); |
71 | } | |
72 | } |