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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  import org.jboss.netty.util.internal.StackTraceSimplifier;
    21
    22  /**
    23   * The default {@link ExceptionEvent} implementation.
    24   */
    25  public class DefaultExceptionEvent implements ExceptionEvent {
    26
    27      private final Channel channel;
    28      private final Throwable cause;
    29
    30      /**
    31       * Creates a new instance.
    32       */
    33      public DefaultExceptionEvent(Channel channel, Throwable cause) {
    34          if (channel == null) {
    35              throw new NullPointerException("channel");
    36          }
    37          if (cause == null) {
    38              throw new NullPointerException("cause");
    39          }
    40          this.channel = channel;
    41          this.cause = cause;
    42          StackTraceSimplifier.simplify(cause);
    43      }
    44
    45      public Channel getChannel() {
    46          return channel;
    47      }
    48
    49      public ChannelFuture getFuture() {
    50          return succeededFuture(getChannel());
    51      }
    52
    53      public Throwable getCause() {
    54          return cause;
    55      }
    56
    57      @Override
    58      public String toString() {
    59          return getChannel().toString() + " EXCEPTION: " + cause;
    60      }
    61  }