1 /*
2 * Copyright 2009 Red Hat, Inc.
3 *
4 * Red Hat licenses this file to you under the Apache License, version 2.0
5 * (the "License"); you may not use this file except in compliance with the
6 * License. You may obtain a copy of the License at:
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations
14 * under the License.
15 */
16 package org.jboss.netty.channel.local;
17
18 import java.util.concurrent.ConcurrentMap;
19
20 import org.jboss.netty.channel.Channel;
21 import org.jboss.netty.util.internal.ConcurrentHashMap;
22
23 /**
24 * @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
25 * @author <a href="http://gleamynode.net/">Trustin Lee</a>
26 * @version $Rev: 2080 $, $Date: 2010-01-26 18:04:19 +0900 (Tue, 26 Jan 2010) $
27 */
28 final class LocalChannelRegistry {
29
30 private static final ConcurrentMap<LocalAddress, Channel> map =
31 new ConcurrentHashMap<LocalAddress, Channel>();
32
33 static boolean isRegistered(LocalAddress address) {
34 return map.containsKey(address);
35 }
36
37 static Channel getChannel(LocalAddress address) {
38 return map.get(address);
39 }
40
41 static boolean register(LocalAddress address, Channel channel) {
42 return map.putIfAbsent(address, channel) == null;
43 }
44
45 static boolean unregister(LocalAddress address) {
46 return map.remove(address) != null;
47 }
48
49 private LocalChannelRegistry() {
50 // Unused
51 }
52 }