server/filter/FilterThread.java

import java.io.*;
import java.net.*;
import java.util.*;
import uk.ac.ukc.iscream.filter.*;

public class FilterThread extends Thread{

    public FilterThread(Filter parent){
        this.parent = parent;
        // no-args constructor.
    }
    
    public void run(DatagramPacket packet){
        rawPacket = packet.getData();
        start();
    }
    
    public void run(String xml){
        rawPacket = xml.getBytes();
        start();
    }
    
    public void run(){
 
        // Get a string without any null characters in it.
        String xml = new String(rawPacket);
        if(xml.indexOf(0)!=-1) {
            xml = xml.substring(0, xml.indexOf(0));
        }
        else {
            xml = xml.substring(0, xml.length());
        }
        System.out.println(xml);

        // USe my XMLPacketMaker to make an XMLPacket object.
        XMLPacketMaker xmlPacketMaker = new XMLPacketMaker(xml);
        XMLPacket packet = xmlPacketMaker.createXMLPacket();
 
        if (packet == null){
            System.out.println("UDPReaderThread - A null XMLPacket was returned, I think I'll ignore it!");
            return;
        }
        System.out.println("UDPReaderThread - An XML Packet was read sucessfully: -");
        packet.printAll();
        // Now do something with this XMLPacket!!!
        // .... but what? ;-)
        parent.receiveXML(xml);
    
    }
    
    Filter parent;
    byte[] rawPacket;
}
Revision:	1.2
Committed:	Wed Nov 22 09:33:52 2000 UTC (23 years, 5 months ago) by tdb
Branch:	MAIN
Changes since 1.1:	+13 -3 lines
Log Message:	Added parent filter passing, so the packet can be passed on. Also had to make a quick fix because a null pointer exception was being thrown on the substring() part. I think this was because when a message came in over CORBA rather than UDP it didn't have the 0 (byte 0 that is) at the end.
#	User	Rev	Content
1	pjm2	1.1	import java.io.*;
2			import java.net.*;
3			import java.util.*;
4	tdb	1.2	import uk.ac.ukc.iscream.filter.*;
5	pjm2	1.1
6	tdb	1.2	public class FilterThread extends Thread{
7	pjm2	1.1
8	tdb	1.2	public FilterThread(Filter parent){
9			this.parent = parent;
10	pjm2	1.1	// no-args constructor.
11			}
12
13			public void run(DatagramPacket packet){
14			rawPacket = packet.getData();
15			start();
16			}
17
18			public void run(String xml){
19			rawPacket = xml.getBytes();
20			start();
21			}
22
23			public void run(){
24
25			// Get a string without any null characters in it.
26			String xml = new String(rawPacket);
27	tdb	1.2	if(xml.indexOf(0)!=-1) {
28			xml = xml.substring(0, xml.indexOf(0));
29			}
30			else {
31			xml = xml.substring(0, xml.length());
32			}
33			System.out.println(xml);
34	pjm2	1.1
35			// USe my XMLPacketMaker to make an XMLPacket object.
36			XMLPacketMaker xmlPacketMaker = new XMLPacketMaker(xml);
37			XMLPacket packet = xmlPacketMaker.createXMLPacket();
38
39			if (packet == null){
40			System.out.println("UDPReaderThread - A null XMLPacket was returned, I think I'll ignore it!");
41			return;
42			}
43			System.out.println("UDPReaderThread - An XML Packet was read sucessfully: -");
44			packet.printAll();
45			// Now do something with this XMLPacket!!!
46			// .... but what? ;-)
47	tdb	1.2	parent.receiveXML(xml);
48	pjm2	1.1
49			}
50
51	tdb	1.2	Filter parent;
52	pjm2	1.1	byte[] rawPacket;
53			}