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