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.handler.execution;
17
18 import java.util.concurrent.Executor;
19
20 import org.jboss.netty.channel.ChannelEvent;
21 import org.jboss.netty.channel.ChannelHandlerContext;
22 import org.jboss.netty.util.EstimatableObjectWrapper;
23
24 /**
25 * a {@link Runnable} which sends the specified {@link ChannelEvent} upstream.
26 * Most users will not see this type at all because it is used by
27 * {@link Executor} implementors only
28 *
29 * @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
30 * @author <a href="http://gleamynode.net/">Trustin Lee</a>
31 *
32 * @version $Rev: 2187 $, $Date: 2010-02-19 17:43:13 +0900 (Fri, 19 Feb 2010) $
33 *
34 */
35 public class ChannelEventRunnable implements Runnable, EstimatableObjectWrapper {
36
37 private final ChannelHandlerContext ctx;
38 private final ChannelEvent e;
39 int estimatedSize;
40
41 /**
42 * Creates a {@link Runnable} which sends the specified {@link ChannelEvent}
43 * upstream via the specified {@link ChannelHandlerContext}.
44 */
45 public ChannelEventRunnable(ChannelHandlerContext ctx, ChannelEvent e) {
46 this.ctx = ctx;
47 this.e = e;
48 }
49
50 /**
51 * Returns the {@link ChannelHandlerContext} which will be used to
52 * send the {@link ChannelEvent} upstream.
53 */
54 public ChannelHandlerContext getContext() {
55 return ctx;
56 }
57
58 /**
59 * Returns the {@link ChannelEvent} which will be sent upstream.
60 */
61 public ChannelEvent getEvent() {
62 return e;
63 }
64
65 /**
66 * Sends the event upstream.
67 */
68 public void run() {
69 ctx.sendUpstream(e);
70 }
71
72 public Object unwrap() {
73 return e;
74 }
75 }