Coverage report

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org.apache.commons.net.DiscardUDPClient
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 1  
 /*
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  * Copyright 2001-2005 The Apache Software Foundation
 3  
  *
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  * Licensed under the Apache License, Version 2.0 (the "License");
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  * you may not use this file except in compliance with the License.
 6  
  * You may obtain a copy of the License at
 7  
  *
 8  
  *     http://www.apache.org/licenses/LICENSE-2.0
 9  
  *
 10  
  * Unless required by applicable law or agreed to in writing, software
 11  
  * distributed under the License is distributed on an "AS IS" BASIS,
 12  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 13  
  * See the License for the specific language governing permissions and
 14  
  * limitations under the License.
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  */
 16  
 package org.apache.commons.net;
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 18  
 import java.io.IOException;
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 import java.net.DatagramPacket;
 20  
 import java.net.InetAddress;
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 22  
 /***
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  * The DiscardUDPClient class is a UDP implementation of a client for the
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  * Discard protocol described in RFC 863.  To use the class,
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  * just open a local UDP port
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  * with {@link org.apache.commons.net.DatagramSocketClient#open  open }
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  * and call {@link #send  send } to send datagrams to the server
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  * After you're done sending discard data, call
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  * {@link org.apache.commons.net.DatagramSocketClient#close  close() }
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  * to clean up properly.
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  * <p>
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  * <p>
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  * @author Daniel F. Savarese
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  * @see DiscardTCPClient
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  ***/
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 37  
 public class DiscardUDPClient extends DatagramSocketClient
 38  
 {
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     /*** The default discard port.  It is set to 9 according to RFC 863. ***/
 40  
     public static final int DEFAULT_PORT = 9;
 41  
 
 42  
     DatagramPacket _sendPacket;
 43  
 
 44  
     public DiscardUDPClient()
 45  0
     {
 46  0
         _sendPacket = new DatagramPacket(class="keyword">new byte[0], 0);
 47  0
     }
 48  
 
 49  
 
 50  
     /***
 51  
      * Sends the specified data to the specified server at the specified port.
 52  
      * <p>
 53  
      * @param data  The discard data to send.
 54  
      * @param length  The length of the data to send.  Should be less than
 55  
      *    or equal to the length of the data byte array.
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      * @param host  The address of the server.
 57  
      * @param port  The service port.
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      * @exception IOException If an error occurs during the datagram send
 59  
      *            operation.
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      ***/
 61  
     public void send(byte[] data, int length, InetAddress host, class="keyword">int port)
 62  
     throws IOException
 63  
     {
 64  0
         _sendPacket.setData(data);
 65  0
         _sendPacket.setLength(length);
 66  0
         _sendPacket.setAddress(host);
 67  0
         _sendPacket.setPort(port);
 68  0
         _socket_.send(_sendPacket);
 69  0
     }
 70  
 
 71  
 
 72  
     /***
 73  
      * Same as
 74  
      * <code>send(data, length, host. DiscardUDPClient.DEFAULT_PORT)</code>.
 75  
      ***/
 76  
     public void send(byte[] data, int length, InetAddress host)
 77  
     throws IOException
 78  
     {
 79  0
         send(data, length, host, DEFAULT_PORT);
 80  0
     }
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 82  
 
 83  
     /***
 84  
      * Same as
 85  
      * <code>send(data, data.length, host. DiscardUDPClient.DEFAULT_PORT)</code>.
 86  
      ***/
 87  
     public void send(byte[] data, InetAddress host) throws IOException
 88  
     {
 89  0
         send(data, data.length, host, DEFAULT_PORT);
 90  0
     }
 91  
 
 92  
 }
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