content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF 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.apache.commons.net;
  
  import java.net.DatagramSocket;
  import java.net.InetAddress;
  import java.net.SocketException;
  
  /***
   * The DatagramSocketFactory interface provides a means for the
   * programmer to control the creation of datagram sockets and
   * provide his own DatagramSocket implementations for use by all
   * classes derived from
   * {@link org.apache.commons.net.DatagramSocketClient}
   * .
   * This allows you to provide your own DatagramSocket implementations and
   * to perform security checks or browser capability requests before
   * creating a DatagramSocket.
   *
   *
   ***/
  
  public interface DatagramSocketFactory
  {
  
      /***
       * Creates a DatagramSocket on the local host at the first available port.
       * @return the socket
       *
       * @exception SocketException If the socket could not be created.
       ***/
      public DatagramSocket createDatagramSocket() throws SocketException;
  
      /***
       * Creates a DatagramSocket on the local host at a specified port.
       *
       * @param port The port to use for the socket.
       * @return the socket
       * @exception SocketException If the socket could not be created.
       ***/
      public DatagramSocket createDatagramSocket(int port) throws SocketException;
  
      /***
       * Creates a DatagramSocket at the specified address on the local host
       * at a specified port.
       *
       * @param port The port to use for the socket.
       * @param laddr  The local address to use.
       * @return the socket
       * @exception SocketException If the socket could not be created.
       ***/
      public DatagramSocket createDatagramSocket(int port, InetAddress laddr)
      throws SocketException;
  }
  