server/filter/FilterThread.java

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

// Handle an incoming UDP packet as a separate thread.
public class FilterThread extends Thread{

    // Class constructor. Obtains the byte[] from a DatagramPacket.
    public FilterThread(DatagramPacket packet, Filter parent, Logger logger){
        this.parent = parent;
        this.rawPacket = packet.getData();
        this.logger = logger;
    }
    
    // Class constructor for passing XML Strings.
    public FilterThread(String xml, Filter parent, Logger logger){
        this.parent = parent;
        this.rawPacket = xml.getBytes();
    }
    
    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, logger);
        XMLPacket packet = xmlPacketMaker.createXMLPacket();
 
        if (packet == null){
            // A null XML packet was returned - don't pass it on.
            logger.write(this.toString(), Logger.SYSMSG, "An XML UDP packet was sucessfully filtered from the system.");
            return;
        }
        
        // Now do something with this XMLPacket!!!
        // .... let's try this...
        parent.receiveXML(xml);
    
    }
    
    Filter parent;
    byte[] rawPacket;
    Logger logger;
}
Revision:	1.7
Committed:	Mon Nov 27 21:47:13 2000 UTC (23 years, 5 months ago) by tdb
Branch:	MAIN
Changes since 1.6:	+1 -1 lines
Log Message:	Yuck, a System.out.println() :)
#	User	Rev	Content
1	pjm2	1.1	import java.io.*;
2			import java.net.*;
3			import java.util.*;
4	pjm2	1.6	import uk.ac.ukc.iscream.core.*;
5	tdb	1.2	import uk.ac.ukc.iscream.filter.*;
6	pjm2	1.1
7	pjm2	1.3	// Handle an incoming UDP packet as a separate thread.
8	tdb	1.2	public class FilterThread extends Thread{
9	pjm2	1.1
10	pjm2	1.3	// Class constructor. Obtains the byte[] from a DatagramPacket.
11	pjm2	1.5	public FilterThread(DatagramPacket packet, Filter parent, Logger logger){
12	tdb	1.2	this.parent = parent;
13	pjm2	1.3	this.rawPacket = packet.getData();
14	pjm2	1.6	this.logger = logger;
15	pjm2	1.1	}
16
17	pjm2	1.3	// Class constructor for passing XML Strings.
18	pjm2	1.5	public FilterThread(String xml, Filter parent, Logger logger){
19	pjm2	1.3	this.parent = parent;
20			this.rawPacket = xml.getBytes();
21	pjm2	1.1	}
22
23			public void run(){
24
25			// Get a string without any null characters in it.
26			String xml = new String(rawPacket);
27	pjm2	1.3	if (xml.indexOf(0) != -1) {
28	tdb	1.2	xml = xml.substring(0, xml.indexOf(0));
29			}
30			else {
31			xml = xml.substring(0, xml.length());
32			}
33	tdb	1.7	//System.out.println(xml);
34	pjm2	1.1
35	pjm2	1.3	// Use my XMLPacketMaker to make an XMLPacket object.
36	pjm2	1.6	XMLPacketMaker xmlPacketMaker = new XMLPacketMaker(xml, logger);
37	pjm2	1.1	XMLPacket packet = xmlPacketMaker.createXMLPacket();
38
39			if (packet == null){
40	pjm2	1.6	// A null XML packet was returned - don't pass it on.
41			logger.write(this.toString(), Logger.SYSMSG, "An XML UDP packet was sucessfully filtered from the system.");
42	pjm2	1.1	return;
43			}
44	pjm2	1.6
45			// Now do something with this XMLPacket!!!
46			// .... let's try this...
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	pjm2	1.5	Logger logger;
54	pjm2	1.1	}