cms/util/XMLPacketMaker.java

import java.io.*;
import java.util.ArrayList;

import org.xml.sax.*;

import javax.xml.parsers.SAXParserFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;

import uk.ac.ukc.iscream.core.*;

// Paul Mutton, pjm2@ukc.ac.uk

// XMLPacketMaker - Creates an XMLPacket object.
public class XMLPacketMaker extends HandlerBase {

    // Constructor for accepting XML input.
    public XMLPacketMaker (String xml, Logger logger) {
        this.xml = xml;
        this.logger = logger;
    }

    public XMLPacket createXMLPacket() {

        // Create the XMLPacket to store values in.
        XMLPacket packet = new XMLPacket();

        // Use the default (non-validating) parser
        SAXParserFactory factory = SAXParserFactory.newInstance();
        try {

            // Parse the input
            InputSource inputSource = new InputSource(new StringReader(xml));
            SAXParser saxParser = factory.newSAXParser();
            saxParser.parse(inputSource, new XMLStringParser(packet));

        }
        catch (Exception e) {
            logger.write(this.toString(), Logger.WARNING, "An invalid XML UDP packet has been detected: "+packet.printAll());
            //t.printStackTrace();
            return null;
        }
        
        return packet;
    }
    
    String xml;
    Logger logger;
}
Revision:	1.2
Committed:	Thu Nov 23 09:36:07 2000 UTC (23 years, 5 months ago) by pjm2
Branch:	MAIN
Changes since 1.1:	+6 -7 lines
Log Message:	Altered the printAll() method in the XMLPacket. Added logging facilities to XMLPacketMaker.
#	Content
1	import java.io.*;
2	import java.util.ArrayList;
3
4	import org.xml.sax.*;
5
6	import javax.xml.parsers.SAXParserFactory;
7	import javax.xml.parsers.ParserConfigurationException;
8	import javax.xml.parsers.SAXParser;
9
10	import uk.ac.ukc.iscream.core.*;
11
12	// Paul Mutton, pjm2@ukc.ac.uk
13
14	// XMLPacketMaker - Creates an XMLPacket object.
15	public class XMLPacketMaker extends HandlerBase {
16
17	// Constructor for accepting XML input.
18	public XMLPacketMaker (String xml, Logger logger) {
19	this.xml = xml;
20	this.logger = logger;
21	}
22
23	public XMLPacket createXMLPacket() {
24
25	// Create the XMLPacket to store values in.
26	XMLPacket packet = new XMLPacket();
27
28	// Use the default (non-validating) parser
29	SAXParserFactory factory = SAXParserFactory.newInstance();
30	try {
31
32	// Parse the input
33	InputSource inputSource = new InputSource(new StringReader(xml));
34	SAXParser saxParser = factory.newSAXParser();
35	saxParser.parse(inputSource, new XMLStringParser(packet));
36
37	}
38	catch (Exception e) {
39	logger.write(this.toString(), Logger.WARNING, "An invalid XML UDP packet has been detected: "+packet.printAll());
40	//t.printStackTrace();
41	return null;
42	}
43
44	return packet;
45	}
46
47	String xml;
48	Logger logger;
49	}