1 |
import java.io.*; |
2 |
import java.net.*; |
3 |
import java.util.*; |
4 |
import uk.ac.ukc.iscream.filter.*; |
5 |
|
6 |
// Handle an incoming UDP packet as a separate thread. |
7 |
public class FilterThread extends Thread{ |
8 |
|
9 |
// Class constructor. Obtains the byte[] from a DatagramPacket. |
10 |
public FilterThread(DatagramPacket packet, Filter parent, Logger logger){ |
11 |
this.parent = parent; |
12 |
this.rawPacket = packet.getData(); |
13 |
} |
14 |
|
15 |
// Class constructor for passing XML Strings. |
16 |
public FilterThread(String xml, Filter parent, Logger logger){ |
17 |
this.parent = parent; |
18 |
this.rawPacket = xml.getBytes(); |
19 |
} |
20 |
|
21 |
public void run(){ |
22 |
|
23 |
// Get a string without any null characters in it. |
24 |
String xml = new String(rawPacket); |
25 |
if (xml.indexOf(0) != -1) { |
26 |
xml = xml.substring(0, xml.indexOf(0)); |
27 |
} |
28 |
else { |
29 |
xml = xml.substring(0, xml.length()); |
30 |
} |
31 |
System.out.println(xml); |
32 |
|
33 |
// Use my XMLPacketMaker to make an XMLPacket object. |
34 |
XMLPacketMaker xmlPacketMaker = new XMLPacketMaker(xml); |
35 |
XMLPacket packet = xmlPacketMaker.createXMLPacket(); |
36 |
|
37 |
if (packet == null){ |
38 |
System.out.println("UDPReaderThread - A null XMLPacket was returned, I think I'll ignore it!"); |
39 |
return; |
40 |
} |
41 |
System.out.println("UDPReaderThread - An XML Packet was read sucessfully: -"); |
42 |
packet.printAll(); |
43 |
// Now do something with this XMLPacket!!! |
44 |
// .... let's try this... |
45 |
parent.receiveXML(xml); |
46 |
|
47 |
} |
48 |
|
49 |
Filter parent; |
50 |
byte[] rawPacket; |
51 |
Logger logger; |
52 |
} |