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1   /*
2    * Copyright 2012 The Netty Project
3    *
4    * The Netty Project licenses this file to you under the Apache License,
5    * version 2.0 (the "License"); you may not use this file except in compliance
6    * with the 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 ExceptionEvent} implementation.
22   */
23  public class DefaultExceptionEvent implements ExceptionEvent {
24  
25      private final Channel channel;
26      private final Throwable cause;
27  
28      /**
29       * Creates a new instance.
30       */
31      public DefaultExceptionEvent(Channel channel, Throwable cause) {
32          if (channel == null) {
33              throw new NullPointerException("channel");
34          }
35          if (cause == null) {
36              throw new NullPointerException("cause");
37          }
38          this.channel = channel;
39          this.cause = cause;
40      }
41  
42      public Channel getChannel() {
43          return channel;
44      }
45  
46      public ChannelFuture getFuture() {
47          return succeededFuture(getChannel());
48      }
49  
50      public Throwable getCause() {
51          return cause;
52      }
53  
54      @Override
55      public String toString() {
56          return getChannel().toString() + " EXCEPTION: " + cause;
57      }
58  }