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
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.tuscany.sca.endpoint.tribes;
import java.io.Serializable;
import org.apache.catalina.tribes.Channel;
import org.apache.catalina.tribes.ChannelException;
import org.apache.catalina.tribes.ChannelListener;
import org.apache.catalina.tribes.Member;
import org.apache.catalina.tribes.MembershipListener;
import org.apache.catalina.tribes.group.RpcCallback;
/**
* This file is copied from:
* https://svn.apache.org/repos/asf/tomcat/tc6.0.x/tags/TOMCAT_6_0_20/java/org/apache/catalina/tribes/tipis/ReplicatedMap.java
*
*/
public class ReplicatedMap extends AbstractReplicatedMap implements RpcCallback, ChannelListener, MembershipListener {
private static final long serialVersionUID = -6318779627600581121L;
protected static org.apache.juli.logging.Log log = org.apache.juli.logging.LogFactory.getLog(ReplicatedMap.class);
//------------------------------------------------------------------------------
// CONSTRUCTORS / DESTRUCTORS
//------------------------------------------------------------------------------
/**
* Creates a new map
* @param channel The channel to use for communication
* @param timeout long - timeout for RPC messags
* @param mapContextName String - unique name for this map, to allow multiple maps per channel
* @param initialCapacity int - the size of this map, see HashMap
* @param loadFactor float - load factor, see HashMap
*/
public ReplicatedMap(MapOwner owner,
Channel channel,
long timeout,
String mapContextName,
int initialCapacity,
float loadFactor,
ClassLoader[] cls) {
super(owner, channel, timeout, mapContextName, initialCapacity, loadFactor, Channel.SEND_OPTIONS_DEFAULT, cls);
}
/**
* Creates a new map
* @param channel The channel to use for communication
* @param timeout long - timeout for RPC messags
* @param mapContextName String - unique name for this map, to allow multiple maps per channel
* @param initialCapacity int - the size of this map, see HashMap
*/
public ReplicatedMap(MapOwner owner,
Channel channel,
long timeout,
String mapContextName,
int initialCapacity,
ClassLoader[] cls) {
super(owner, channel, timeout, mapContextName, initialCapacity, AbstractReplicatedMap.DEFAULT_LOAD_FACTOR,
Channel.SEND_OPTIONS_DEFAULT, cls);
}
/**
* Creates a new map
* @param channel The channel to use for communication
* @param timeout long - timeout for RPC messags
* @param mapContextName String - unique name for this map, to allow multiple maps per channel
*/
public ReplicatedMap(MapOwner owner, Channel channel, long timeout, String mapContextName, ClassLoader[] cls) {
super(owner, channel, timeout, mapContextName, AbstractReplicatedMap.DEFAULT_INITIAL_CAPACITY,
AbstractReplicatedMap.DEFAULT_LOAD_FACTOR, Channel.SEND_OPTIONS_DEFAULT, cls);
}
//------------------------------------------------------------------------------
// METHODS TO OVERRIDE
//------------------------------------------------------------------------------
protected int getStateMessageType() {
return AbstractReplicatedMap.MapMessage.MSG_STATE_COPY;
}
/**
* publish info about a map pair (key/value) to other nodes in the cluster
* @param key Object
* @param value Object
* @return Member - the backup node
* @throws ChannelException
*/
protected Member[] publishEntryInfo(Object key, Object value, Member[] backupNodes) throws ChannelException {
if (!(key instanceof Serializable && value instanceof Serializable))
return new Member[0];
//select a backup node
Member[] backup = getMapMembers();
if (backup == null || backup.length == 0)
return null;
// Set the receivers to these members that are not in the backup nodes yet
Member[] members = backup;
if (backupNodes != null) {
members = getMapMembersExcl(backupNodes);
}
//publish the data out to all nodes
MapMessage msg =
new MapMessage(getMapContextName(), MapMessage.MSG_COPY, false, (Serializable)key, (Serializable)value,
null, channel.getLocalMember(false), backup);
getChannel().send(members, msg, getChannelSendOptions());
return backup;
}
}
|
