content: /**
   * This file is part of Aion-Lightning <aion-lightning.org>.
   *
   *  Aion-Lightning is free software: you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation, either version 3 of the License, or
   *  (at your option) any later version.
   *
   *  Aion-Lightning is distributed in the hope that it will be useful,
   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *  GNU General Public License for more details. *
   *  You should have received a copy of the GNU General Public License
   *  along with Aion-Lightning.
   *  If not, see <http://www.gnu.org/licenses/>.
   */
  
  package com.aionemu.commons.network;
  
  import java.io.IOException;
  import java.nio.channels.SelectionKey;
  import java.util.Iterator;
  
  /**
   * This is implementation of <code>Dispatcher</code> that may only accept
   * connections.
   * 
   * @author -Nemesiss-
   * @see com.aionemu.commons.network.Dispatcher
   * @see java.nio.channels.Selector
   */
  public class AcceptDispatcherImpl extends Dispatcher {
  
  	/**
  	 * Constructor that accept <code>String</code> name as parameter.
  	 * 
  	 * @param name
  	 * @throws IOException
  	 */
  	public AcceptDispatcherImpl(String name) throws IOException {
  		super(name, null);
  	}
  
  	/**
  	 * Dispatch <code>Selector</code> selected-key set.
  	 * 
  	 * @see com.aionemu.commons.network.Dispatcher#dispatch()
  	 */
  	@Override
  	void dispatch() throws IOException {
  		if (selector.select() != 0) {
  			Iterator<SelectionKey> selectedKeys = this.selector.selectedKeys().iterator();
  			while (selectedKeys.hasNext()) {
  				SelectionKey key = selectedKeys.next();
  				selectedKeys.remove();
  
  				if (key.isValid())
  					accept(key);
  			}
  		}
  	}
  
  	/**
  	 * This method should never be called on this implementation of
  	 * <code>Dispatcher</code>
  	 * 
  	 * @throws UnsupportedOperationException
  	 *             always!
  	 * @see com.aionemu.commons.network.Dispatcher#closeConnection(com.aionemu.commons.network.AConnection)
  	 */
  	@Override
  	void closeConnection(AConnection con) {
  		throw new UnsupportedOperationException("This method should never be called!");
  	}
  }
  