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   /*
    * Copyright 2014 The Netty Project
    *
    * The Netty Project licenses this file to you under the Apache License,
    * version 2.0 (the "License"); you may not use this file except in compliance
    * with the License. You may obtain a copy of the License at:
    *
    *   https://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
   * License for the specific language governing permissions and limitations
   * under the License.
   */
  
  package io.netty.channel.embedded;
  
  import io.netty.channel.ChannelId;
  
  /**
   * A dummy {@link ChannelId} implementation.
   */
  final class EmbeddedChannelId implements ChannelId {
  
      private static final long serialVersionUID = -251711922203466130L;
  
      static final ChannelId INSTANCE = new EmbeddedChannelId();
  
      private EmbeddedChannelId() { }
  
      @Override
      public String asShortText() {
          return toString();
      }
  
      @Override
      public String asLongText() {
          return toString();
      }
  
      @Override
      public int compareTo(final ChannelId o) {
          if (o instanceof EmbeddedChannelId) {
              return 0;
          }
  
          return asLongText().compareTo(o.asLongText());
      }
  
      @Override
      public int hashCode() {
          return 0;
      }
  
      @Override
      public boolean equals(Object obj) {
          return obj instanceof EmbeddedChannelId;
      }
  
      @Override
      public String toString() {
          return "embedded";
      }
  }