server/XMLReader/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
            SAXParser saxParser = factory.newSAXParser();
            saxParser.parse(xml, new XMLPacketParser(packet));

        }
        catch (IOException e){
            System.out.println("IOException: "+e);
        }
        catch (Throwable t) {
            System.out.println("XMLPacketMaker - I just received an XML packet that did not contain valid XML.");
            //System.out.println(e);
            t.printStackTrace();
            return null;
        }
        
        return packet;
    }
    
    String xml;
}
Revision:	1.12
Committed:	Fri Nov 17 12:44:47 2000 UTC (24 years ago) by pjm2
Branch:	MAIN
Changes since 1.11:	+6 -6 lines
Log Message:	Altered test.xml to have a declaration of the file format. XMLPacketMaker has slightly different error handling.
#	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	// 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	SAXParser saxParser = factory.newSAXParser();
36	saxParser.parse(xml, new XMLPacketParser(packet));
37
38	}
39	catch (IOException e){
40	System.out.println("IOException: "+e);
41	}
42	catch (Throwable t) {
43	System.out.println("XMLPacketMaker - I just received an XML packet that did not contain valid XML.");
44	//System.out.println(e);
45	t.printStackTrace();
46	return null;
47	}
48
49	return packet;
50	}
51
52	String xml;
53	}