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   /*
    * Copyright 2012 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:
    *
    *   http://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 org.jboss.netty.channel.socket.nio;
  
  import org.jboss.netty.util.HashedWheelTimer;
  import org.jboss.netty.util.ThreadNameDeterminer;
  import org.jboss.netty.util.Timer;
  
  import java.util.concurrent.Executor;
  
  /**
   * Holds {@link NioClientBoss} instances to use
   */
  public class NioClientBossPool extends AbstractNioBossPool<NioClientBoss> {
      private final ThreadNameDeterminer determiner;
      private final Timer timer;
      private boolean stopTimer;
  
      /**
       * Create a new instance
       *
       * @param bossExecutor  the Executor to use for server the {@link NioClientBoss}
       * @param bossCount     the number of {@link NioClientBoss} instances this {@link NioClientBossPool} will hold
       * @param timer         the Timer to use for handle connect timeouts
       * @param determiner    the {@link ThreadNameDeterminer} to use for name the threads. Use {@code null}
       *                      if you not want to set one explicit.
       */
      public NioClientBossPool(Executor bossExecutor, int bossCount, Timer timer, ThreadNameDeterminer determiner) {
          super(bossExecutor, bossCount, false);
          this.determiner = determiner;
          this.timer = timer;
          init();
      }
  
      /**
       * Create a new instance using a new {@link HashedWheelTimer} and no {@link ThreadNameDeterminer}
       *
       * @param bossExecutor  the Executor to use for server the {@link NioClientBoss}
       * @param bossCount     the number of {@link NioClientBoss} instances this {@link NioClientBoss} will hold
       */
      public NioClientBossPool(Executor bossExecutor, int bossCount) {
          this(bossExecutor, bossCount, new HashedWheelTimer(), null);
          stopTimer = true;
      }
  
      @Override
      protected NioClientBoss newBoss(Executor executor) {
          return new NioClientBoss(executor, timer, determiner);
      }
  
      @Override
      public void shutdown() {
          super.shutdown();
          if (stopTimer) {
              timer.stop();
          }
      }
  
      @Override
      public void releaseExternalResources() {
          super.releaseExternalResources();
          timer.stop();
      }
  }