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
90
91
92
93
94
95
96
97
98
99
100
|
/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 2000-2009. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
* compliance with the License. You should have received a copy of the
* Erlang Public License along with this software. If not, it can be
* retrieved online at http://www.erlang.org/.
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* %CopyrightEnd%
*/
package com.ericsson.otp.erlang;
/**
* <p>
* Provides a callback mechanism for receiving status change information about
* other nodes in the system. Register an instance of this class (or a subclass)
* with your {@link OtpNode OtpNode} when you wish to be notified about such
* status changes and other similar events.
* </p>
*
* <p>
* This class provides default handers that ignore all events. Applications are
* expected to extend this class in order to act on events that are deemed
* interesting.
* </p>
*
* <p>
* <b> Note that this class is likely to change in the near future </b>
* </p>
*/
public class OtpNodeStatus {
public OtpNodeStatus() {
}
/**
* Notify about remote node status changes.
*
* @param node
* the node whose status change is being indicated by this
* call.
*
* @param up
* true if the node has come up, false if it has gone down.
*
* @param info
* additional info that may be available, for example an
* exception that was raised causing the event in question
* (may be null).
*
*/
public void remoteStatus(final String node, final boolean up,
final Object info) {
}
/**
* Notify about local node exceptions.
*
* @param node
* the node whose status change is being indicated by this
* call.
*
* @param up
* true if the node has come up, false if it has gone down.
*
* @param info
* additional info that may be available, for example an
* exception that was raised causing the event in question
* (may be null).
*/
public void localStatus(final String node, final boolean up,
final Object info) {
}
/**
* Notify about failed connection attempts.
*
* @param node
* The name of the remote node
*
* @param incoming
* The direction of the connection attempt, i.e. true for
* incoming, false for outgoing.
*
* @param info
* additional info that may be available, for example an
* exception that was raised causing the event in question
* (may be null).
*/
public void connAttempt(final String node, final boolean incoming,
final Object info) {
}
}
|
