host/java/LowLevelNet.java

//---PACKAGE DECLARATION---

//---IMPORTS---

import java.net.*;
import java.io.*;

/**
 * Provides low level network functions for JavaHost
 * <DETAILED DESCRIPTION>
 *
 * @author  $Author: tdb1 $
 * @version $Id: LowLevelNet.java,v 1.4 2000/12/07 23:20:35 tdb1 Exp $
 */
class LowLevelNet {

//---FINAL ATTRIBUTES---

//---STATIC METHODS---

    /**
    * sendUDPPacket - will attempt to send a UDP packet containing 'inText' to server
    * on the specificed port.
    */
    public static void sendUDPPacket( Config config, String inText ){
        
        if ( inText.length() != 0 ){
            //System.out.println("SENT: "+inText);
            // will throw an exception if an error occurs, so must bung it in a try
            try {
                DatagramPacket udp = new DatagramPacket( inText.getBytes(), inText.length(), config.getFilterName(), config.getFilterUDPPort() );
                DatagramSocket sendSoc = new DatagramSocket();
                sendSoc.send(udp);
            }
            catch ( SocketException e ){
               // the serverName supplied could not be resolved using dns
            }
            catch ( IOException e ){
                // problem sending..    
            }
        }
    }

//---CONSTRUCTORS---

//---PUBLIC METHODS---

//---PRIVATE METHODS---

//---ACCESSOR/MUTATOR METHODS---

//---ATTRIBUTES---

//---STATIC ATTRIBUTES---

}
Revision:	1.5
Committed:	Wed Jan 24 01:25:59 2001 UTC (23 years, 10 months ago) by tdb
Branch:	MAIN
CVS Tags:	PROJECT_COMPLETION
Changes since 1.4:	+4 -4 lines
Log Message:	Just a few minor formatting issues. I don't think we need it to blurt the UDP packet out all the time... :) Also changed "Sending UDP Packet" to "." and "Sending Heartbeat" to "+", with no println, just print. Looks much neater.
#	User	Rev	Content
1	ab11	1.2	//---PACKAGE DECLARATION---
2
3			//---IMPORTS---
4
5	ab11	1.1	import java.net.*;
6	ab11	1.3	import java.io.*;
7	ab11	1.1
8			/**
9	ab11	1.2	* Provides low level network functions for JavaHost
10			* <DETAILED DESCRIPTION>
11			*
12	tdb	1.5	* @author $Author: tdb1 $
13			* @version $Id: LowLevelNet.java,v 1.4 2000/12/07 23:20:35 tdb1 Exp $
14	ab11	1.2	*/
15	ab11	1.1	class LowLevelNet {
16
17	ab11	1.2	//---FINAL ATTRIBUTES---
18
19			//---STATIC METHODS---
20
21			/**
22			* sendUDPPacket - will attempt to send a UDP packet containing 'inText' to server
23			* on the specificed port.
24			*/
25			public static void sendUDPPacket( Config config, String inText ){
26
27			if ( inText.length() != 0 ){
28	tdb	1.5	//System.out.println("SENT: "+inText);
29	ab11	1.2	// will throw an exception if an error occurs, so must bung it in a try
30	ab11	1.3	try {
31	ab11	1.2	DatagramPacket udp = new DatagramPacket( inText.getBytes(), inText.length(), config.getFilterName(), config.getFilterUDPPort() );
32	ab11	1.3	DatagramSocket sendSoc = new DatagramSocket();
33			sendSoc.send(udp);
34			}
35			catch ( SocketException e ){
36			// the serverName supplied could not be resolved using dns
37			}
38			catch ( IOException e ){
39			// problem sending..
40			}
41	ab11	1.2	}
42			}
43
44			//---CONSTRUCTORS---
45
46			//---PUBLIC METHODS---
47
48			//---PRIVATE METHODS---
49
50			//---ACCESSOR/MUTATOR METHODS---
51
52			//---ATTRIBUTES---
53	ab11	1.1
54	ab11	1.2	//---STATIC ATTRIBUTES---
55	ab11	1.1
56	tdb	1.5	}