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;
17
18 import static org.jboss.netty.channel.Channels.*;
19
20 /**
21 * The default {@link WriteCompletionEvent} implementation.
22 *
23 * @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
24 * @author <a href="http://gleamynode.net/">Trustin Lee</a>
25 *
26 * @version $Rev: 2210 $, $Date: 2010-03-04 08:11:39 +0900 (Thu, 04 Mar 2010) $
27 */
28 public class DefaultWriteCompletionEvent implements WriteCompletionEvent {
29
30 private final Channel channel;
31 private final long writtenAmount;
32
33 /**
34 * Creates a new instance.
35 */
36 public DefaultWriteCompletionEvent(Channel channel, long writtenAmount) {
37 if (channel == null) {
38 throw new NullPointerException("channel");
39 }
40 if (writtenAmount <= 0) {
41 throw new IllegalArgumentException(
42 "writtenAmount must be a positive integer: " + writtenAmount);
43 }
44
45 this.channel = channel;
46 this.writtenAmount = writtenAmount;
47 }
48
49 public Channel getChannel() {
50 return channel;
51 }
52
53 public ChannelFuture getFuture() {
54 return succeededFuture(getChannel());
55 }
56
57 public long getWrittenAmount() {
58 return writtenAmount;
59 }
60
61 @Override
62 public String toString() {
63 String channelString = getChannel().toString();
64 StringBuilder buf = new StringBuilder(channelString.length() + 32);
65 buf.append(channelString);
66 buf.append(" WRITTEN_AMOUNT: ");
67 buf.append(getWrittenAmount());
68 return buf.toString();
69 }
70 }