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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  import java.net.SocketAddress;
21  
22  import org.jboss.netty.util.internal.StringUtil;
23  
24  /**
25   * The default upstream {@link MessageEvent} implementation.
26   *
27   * @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
28   * @author <a href="http://gleamynode.net/">Trustin Lee</a>
29   *
30   * @version $Rev: 2080 $, $Date: 2010-01-26 18:04:19 +0900 (Tue, 26 Jan 2010) $
31   *
32   */
33  public class UpstreamMessageEvent implements MessageEvent {
34  
35      private final Channel channel;
36      private final Object message;
37      private final SocketAddress remoteAddress;
38  
39      /**
40       * Creates a new instance.
41       */
42      public UpstreamMessageEvent(
43              Channel channel, Object message, SocketAddress remoteAddress) {
44  
45          if (channel == null) {
46              throw new NullPointerException("channel");
47          }
48          if (message == null) {
49              throw new NullPointerException("message");
50          }
51          this.channel = channel;
52          this.message = message;
53          if (remoteAddress != null) {
54              this.remoteAddress = remoteAddress;
55          } else {
56              this.remoteAddress = channel.getRemoteAddress();
57          }
58      }
59  
60      public Channel getChannel() {
61          return channel;
62      }
63  
64      public ChannelFuture getFuture() {
65          return succeededFuture(getChannel());
66      }
67  
68      public Object getMessage() {
69          return message;
70      }
71  
72      public SocketAddress getRemoteAddress() {
73          return remoteAddress;
74      }
75  
76      @Override
77      public String toString() {
78          if (getRemoteAddress() == getChannel().getRemoteAddress()) {
79              return getChannel().toString() + " RECEIVED: " +
80                     StringUtil.stripControlCharacters(getMessage());
81          } else {
82              return getChannel().toString() + " RECEIVED: " +
83                     StringUtil.stripControlCharacters(getMessage()) + " from " +
84                     getRemoteAddress();
85          }
86      }
87  }