1 /***
2 *
3 * Copyright 2004 Protique Ltd
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 **/
18 package org.codehaus.activecluster.impl;
19
20 import org.codehaus.activecluster.Node;
21
22 import javax.jms.Destination;
23 import java.util.HashMap;
24 import java.util.Map;
25
26
27 /***
28 * Default implementation of a remote Node
29 *
30 * @version $Revision: 1.6 $
31 */
32 public class NodeImpl implements Node {
33
34 private Destination destination;
35 protected Map state;
36 protected boolean coordinator;
37
38 /***
39 * Allow a node to be copied for sending it as a message
40 *
41 * @param node
42 */
43 public NodeImpl(Node node) {
44 this(node.getDestination(), node.getState());
45 }
46
47 public NodeImpl(Destination destination) {
48 this(destination, new HashMap());
49 }
50
51 public NodeImpl(Destination destination, Map state) {
52 this.destination = destination;
53 this.state = state;
54 }
55
56 /***
57 * @return the name of the node
58 */
59 public String getName() {
60 return destination.toString();
61 }
62
63 public String toString() {
64 return "Node[destination: " + destination + " state: " + state + "]";
65 }
66
67 public Destination getDestination() {
68 return destination;
69 }
70
71 public synchronized Map getState() {
72 return new HashMap(state);
73 }
74
75
76 protected synchronized void setState(Map state) {
77 this.state = state;
78 }
79
80
81 /***
82 * @return true if this node has been elected as coordinator
83 */
84 public boolean isCoordinator() {
85 return coordinator;
86 }
87
88 protected void setCoordinator(boolean value) {
89 coordinator = value;
90 }
91 }