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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.io.IOException;
    23  import java.net.SocketAddress;
    24  import java.util.ArrayList;
    25  import java.util.HashMap;
    26  import java.util.Map;
    27
    28  import org.apache.mina.common.IoHandler;
    29  import org.apache.mina.common.IoServiceConfig;
    30  import org.apache.mina.common.IoSessionConfig;
    31  import org.apache.mina.common.support.BaseIoAcceptor;
    32  import org.apache.mina.common.support.BaseIoAcceptorConfig;
    33  import org.apache.mina.common.support.BaseIoSessionConfig;
    34  import org.apache.mina.transport.vmpipe.support.VmPipe;
    35
    36  /**
    37   * Binds the specified {@link IoHandler} to the specified
    38   * {@link VmPipeAddress}.
    39   *
    40   * @author The Apache Directory Project (mina-dev@directory.apache.org)
    41   * @version $Rev: 587373 $, $Date: 2007-10-23 04:54:05 +0200 (Tue, 23 Oct 2007) $
    42   */
    43  public class VmPipeAcceptor extends BaseIoAcceptor {
    44      static final Map<SocketAddress, VmPipe> boundHandlers = new HashMap<SocketAddress, VmPipe>();
    45
    46      private static final IoSessionConfig CONFIG = new BaseIoSessionConfig() {
    47      };
    48
    49      private final IoServiceConfig defaultConfig = new BaseIoAcceptorConfig() {
    50          public IoSessionConfig getSessionConfig() {
    51              return CONFIG;
    52          }
    53      };
    54
    55      public void bind(SocketAddress address, IoHandler handler,
    56              IoServiceConfig config) throws IOException {
    57          if (handler == null)
    58              throw new NullPointerException("handler");
    59          if (address != null && !(address instanceof VmPipeAddress))
    60              throw new IllegalArgumentException("address must be VmPipeAddress.");
    61
    62          if (config == null) {
    63              config = getDefaultConfig();
    64          }
    65
    66          synchronized (boundHandlers) {
    67              if (address == null || ((VmPipeAddress) address).getPort() == 0) {
    68                  for (int i = 1; i < Integer.MAX_VALUE; i++) {
    69                      address = new VmPipeAddress(i);
    70                      if (!boundHandlers.containsKey(address)) {
    71                          break;
    72                      }
    73                  }
    74              } else if (boundHandlers.containsKey(address)) {
    75                  throw new IOException("Address already bound: " + address);
    76              }
    77
    78              boundHandlers.put(address, new VmPipe(this,
    79                      (VmPipeAddress) address, handler, config, getListeners()));
    80          }
    81
    82          getListeners().fireServiceActivated(this, address, handler, config);
    83      }
    84
    85      public void unbind(SocketAddress address) {
    86          if (address == null)
    87              throw new NullPointerException("address");
    88
    89          VmPipe pipe;
    90          synchronized (boundHandlers) {
    91              if (!boundHandlers.containsKey(address)) {
    92                  throw new IllegalArgumentException("Address not bound: "
    93                          + address);
    94              }
    95
    96              pipe = boundHandlers.remove(address);
    97          }
    98
    99          getListeners().fireServiceDeactivated(this, pipe.getAddress(),
    100                 pipe.getHandler(), pipe.getConfig());
    101     }
    102
    103     public void unbindAll() {
    104         synchronized (boundHandlers) {
    105             for (SocketAddress address : new ArrayList<SocketAddress>(
    106                     boundHandlers.keySet())) {
    107                 unbind(address);
    108             }
    109         }
    110     }
    111
    112     public IoServiceConfig getDefaultConfig() {
    113         return defaultConfig;
    114     }
    115 }