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    1   /*
    2    *  Licensed to the Apache Software Foundation (ASF) under one
    3    *  or more contributor license agreements.  See the NOTICE file
    4    *  distributed with this work for additional information
    5    *  regarding copyright ownership.  The ASF licenses this file
    6    *  to you under the Apache License, Version 2.0 (the
    7    *  "License"); you may not use this file except in compliance
    8    *  with the License.  You may obtain a copy of the License at
    9    *
    10   *    http://www.apache.org/licenses/LICENSE-2.0
    11   *
    12   *  Unless required by applicable law or agreed to in writing,
    13   *  software distributed under the License is distributed on an
    14   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    15   *  KIND, either express or implied.  See the License for the
    16   *  specific language governing permissions and limitations
    17   *  under the License.
    18   *
    19   */
    20  package org.apache.mina.transport.vmpipe;
    21
    22  import java.net.SocketAddress;
    23
    24  /**
    25   * A {@link SocketAddress} which represents in-VM pipe port number.
    26   *
    27   * @author <a href="http://mina.apache.org">Apache MINA Project</a>
    28   */
    29  public class VmPipeAddress extends SocketAddress implements Comparable<VmPipeAddress> {
    30      private static final long serialVersionUID = 3257844376976830515L;
    31
    32      private final int port;
    33
    34      /**
    35       * Creates a new instance with the specifid port number.
    36       */
    37      public VmPipeAddress(int port) {
    38          this.port = port;
    39      }
    40
    41      /**
    42       * Returns the port number.
    43       */
    44      public int getPort() {
    45          return port;
    46      }
    47
    48      @Override
    49      public int hashCode() {
    50          return port;
    51      }
    52
    53      @Override
    54      public boolean equals(Object o) {
    55          if (o == null) {
    56              return false;
    57          }
    58          if (this == o) {
    59              return true;
    60          }
    61          if (o instanceof VmPipeAddress) {
    62              VmPipeAddress that = (VmPipeAddress) o;
    63              return this.port == that.port;
    64          }
    65
    66          return false;
    67      }
    68
    69      public int compareTo(VmPipeAddress o) {
    70          return this.port - o.port;
    71      }
    72
    73      @Override
    74      public String toString() {
    75          if (port >= 0) {
    76              return "vm:server:" + port;
    77          }
    78
    79          return "vm:client:" + -port;
    80      }
    81  }