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;

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

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

    // No-args constructor.  Generally not used.
    public XMLPacketMaker () {
        this.xml = "<packet></packet>";
    }

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

    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) {
            System.out.println("XMLPacketMaker - I just received an XML packet that did not contain valid XML.");
            //t.printStackTrace();
            return null;
        }
        
        return packet;
    }
    
    String xml;
}
Revision:	1.1
Committed:	Wed Nov 22 08:40:53 2000 UTC (23 years, 5 months ago) by pjm2
Branch:	MAIN
Log Message:	Gave the UDP and XML processing classes a new home with the filter. UDPReaderThread has been renamed to FilterThread XMLPacketParser has been renamed to XMLStringParser (as that's what it does!)
#	User	Rev	Content
1	pjm2	1.1	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			// Paul Mutton, pjm2@ukc.ac.uk
11
12			// XMLPacketMaker - Creates an XMLPacket object.
13			public class XMLPacketMaker extends HandlerBase {
14
15			// No-args constructor. Generally not used.
16			public XMLPacketMaker () {
17			this.xml = "<packet></packet>";
18			}
19
20			// Constructor for accepting XML input.
21			public XMLPacketMaker (String xml) {
22			this.xml = xml;
23			}
24
25			public XMLPacket createXMLPacket() {
26
27			// Create the XMLPacket to store values in.
28			XMLPacket packet = new XMLPacket();
29
30			// Use the default (non-validating) parser
31			SAXParserFactory factory = SAXParserFactory.newInstance();
32			try {
33
34			// Parse the input
35			InputSource inputSource = new InputSource(new StringReader(xml));
36			SAXParser saxParser = factory.newSAXParser();
37			saxParser.parse(inputSource, new XMLStringParser(packet));
38
39			}
40			catch (Exception e) {
41			System.out.println("XMLPacketMaker - I just received an XML packet that did not contain valid XML.");
42			//t.printStackTrace();
43			return null;
44			}
45
46			return packet;
47			}
48
49			String xml;
50			}