1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.ws.extensions.wsrm;
/**
* Represents message delivery quality
*
* @author richard.opalka@jboss.com
*/
public enum RMDeliveryQuality
{
/**
* Each message is to be delivered at most once. The RM Source MAY retry transmission of
* unacknowledged messages, but is NOT REQUIRED to do so. The requirement on the RM
* Destination is that it MUST filter out duplicate messages, i.e. that it MUST NOT
* deliver a duplicate of a message that has already been delivered.
*/
AT_MOST_ONCE("AtMostOnce"),
/**
* Each message is to be delivered exactly once; if a message cannot be delivered then an error
* MUST be raised by the RM Source and/or RM Destination. The requirement on an RM Source is
* that it SHOULD retry transmission of every message sent by the Application Source until it
* receives an acknowledgement from the RM Destination. The requirement on the RM Destination
* is that it SHOULD retry the transfer to the Application Destination of any message that it
* accepts from the RM Source until that message has been successfully delivered, and that it
* MUST NOT deliver a duplicate of a message that has already been delivered.
*/
AT_LEAST_ONCE("AtLeastOnce"),
/**
* Each message is to be delivered at least once, or else an error MUST be raised by the RM
* Source and/or RM Destination. The requirement on an RM Source is that it SHOULD retry
* transmission of every message sent by the Application Source until it receives an
* acknowledgement from the RM Destination. The requirement on the RM Destination is that it
* SHOULD retry the transfer to the Application Destination of any message that it accepts
* from the RM Source, until that message has been successfully delivered. There is no
* requirement for the RM Destination to apply duplicate message filtering.
*/
EXACTLY_ONCE("ExactlyOnce");
// associated string representation
private final String quality;
RMDeliveryQuality(String quality)
{
this.quality = quality;
}
/**
* Returns associated constant with passed <b>quality</b> string. Note this method is case sensitive.
* Allowed values are: <b>AtMostOnce</b>, <b>AtLeastOnce</b>, <b>ExactlyOnce</b>.
* @param quality to be parsed
* @return associated constant
* @throws IllegalArgumentException if <b>quality</b> string has no associated enumeration value
*/
public static RMDeliveryQuality parseDeliveryQuality(String quality)
{
if (AT_MOST_ONCE.quality.equals(quality))
return AT_MOST_ONCE;
if (AT_LEAST_ONCE.quality.equals(quality))
return AT_LEAST_ONCE;
if (EXACTLY_ONCE.quality.equals(quality))
return EXACTLY_ONCE;
throw new IllegalArgumentException("Unrecognized string: " + quality);
}
}
|
