blob: 4a58e1b14ee248605ce11104d82b61539efdeda8 (
plain)
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
101
102
103
104
105
106
107
108
109
110
|
/*
* Copyright 2015 Open Networking Laboratory
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.onosproject.mfwd.impl;
import static com.google.common.base.Preconditions.checkNotNull;
import java.util.HashMap;
import org.onlab.packet.IpPrefix;
/**
* The McastRouteGroup extends the McastRouteBase class and serves two purposes:
* first it represents a (*, G) multicast route entry. Second it serves
* as a container for all (S, G) multicast route entries that belong
* to the same group address.
*/
public class McastRouteGroup extends McastRouteBase {
private HashMap<IpPrefix, McastRouteSource> sources;
/**
* Class constructor.
*
* @param gaddr - String representation of group address.
*/
public McastRouteGroup(String gaddr) {
super(checkNotNull(gaddr));
this.init();
}
/**
* Create a multicast group.
*
* @param gpfx - Group address
*/
public McastRouteGroup(IpPrefix gpfx) {
super(checkNotNull(gpfx));
this.init();
}
/**
* Common initialization used by constructors.
*/
private void init() {
this.sources = new HashMap();
super.isGroup = true;
}
/**
* Find a specific multicast source address for this group.
*
* @param saddr the source address
* @return the multicast source route or null if it does not exist
*/
public McastRouteSource findSource(IpPrefix saddr) {
return this.sources.get(checkNotNull(saddr));
}
/**
* Return the entire set of multicast sources for this group.
*
* @return the set of multicast sources
*/
public HashMap<IpPrefix, McastRouteSource> getSources() {
return this.sources;
}
/**
* Add a new McastRouteSource to this group.
*
* @param src the multicast source
*/
public void addSource(McastRouteSource src) {
checkNotNull(src);
this.sources.put(src.getSaddr(), src);
}
/**
* Remove the source with this specific IpPrefix from this group entry.
*
* @param spfx IP Prefix of the source to be removed
* @return the source route that was just removed
*/
public McastRouteSource removeSource(IpPrefix spfx) {
McastRouteSource src = this.sources.remove(spfx);
src.withdrawIntent();
return src;
}
/**
* Remove all sources from this.
*/
public void removeSources() {
for (McastRouteSource src : this.sources.values()) {
src.withdrawIntent();
this.sources.remove(src.getSaddr());
}
}
}
|
