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root/i-scream/projects/cms/source/util/uk/org/iscream/cms/util/XMLPacketMaker.java

Comparing projects/cms/source/util/uk/org/iscream/cms/util/XMLPacketMaker.java (file contents):
Revision 1.2 by pjm2, Thu Nov 23 09:36:07 2000 UTC vs.
Revision 1.14 by tdb, Wed Mar 14 23:25:30 2001 UTC

#	Line 1 | Line 1
1	<	import java.io.*;
2	<	import java.util.ArrayList;
1	>	//---PACKAGE DECLARATION---
2	>	package uk.org.iscream.util;
3
4	+	//---IMPORTS---
5	+	import java.io.*;
6		import org.xml.sax.*;
7	+	import javax.xml.parsers.*;
8
9	<	import javax.xml.parsers.SAXParserFactory;
10	<	import javax.xml.parsers.ParserConfigurationException;
11	<	import javax.xml.parsers.SAXParser;
9	>	/**
10	>	* XMLPacketMaker - Creates an XMLPacket object.
11	>	*
12	>	* @author  $Author$
13	>	* @version $Id$
14	>	*/
15	>	public class XMLPacketMaker {
16
17	<	import uk.ac.ukc.iscream.core.*;
17	>	//---FINAL ATTRIBUTES---
18
19	<	// Paul Mutton, pjm2@ukc.ac.uk
19	>	/**
20	>	* The current CVS revision of this class
21	>	*/
22	>	public final String REVISION = "$Revision$";
23	>
24	>	//---STATIC METHODS---
25
26	<	// XMLPacketMaker - Creates an XMLPacket object.
15	<	public class XMLPacketMaker extends HandlerBase {
26	>	//---CONSTRUCTORS---
27
28	<	// Constructor for accepting XML input.
18	<	public XMLPacketMaker (String xml, Logger logger) {
19	<	this.xml = xml;
20	<	this.logger = logger;
21	<	}
28	>	//---PUBLIC METHODS---
29
30	<	public XMLPacket createXMLPacket() {
30	>	/**
31	>	* Method to create an XML packet from the data this
32	>	* class was constructed with.
33	>	*
34	>	* @param xml the XML String to parse
35	>	* @return an XMLPacket representing the XML String given
36	>	* @throws InvalidXMLException if the XML cannot be parsed
37	>	*/
38	>	public XMLPacket createXMLPacket(String xml) throws InvalidXMLException {
39
40		// Create the XMLPacket to store values in.
41		XMLPacket packet = new XMLPacket();
42	<
28	<	// Use the default (non-validating) parser
29	<	SAXParserFactory factory = SAXParserFactory.newInstance();
42	>
43		try {
31	–
44		// Parse the input
45		InputSource inputSource = new InputSource(new StringReader(xml));
46	<	SAXParser saxParser = factory.newSAXParser();
35	<	saxParser.parse(inputSource, new XMLStringParser(packet));
36	<
46	>	_factory.newSAXParser().parse(inputSource, new XMLStringParser(packet));
47		}
48		catch (Exception e) {
49	<	logger.write(this.toString(), Logger.WARNING, "An invalid XML UDP packet has been detected: "+packet.printAll());
50	<	//t.printStackTrace();
41	<	return null;
49	>	// couldn't parse the XML for some reason
50	>	throw new InvalidXMLException("Could not parse the XML: "+xml);
51		}
52
53	+	// parsed successfully, return the packet
54		return packet;
55		}
56	+
57	+	/**
58	+	* Overrides the {@link java.lang.Object#toString() Object.toString()}
59	+	* method to provide clean logging (every class should have this).
60	+	*
61	+	* This uses the uk.org.iscream.util.NameFormat class
62	+	* to format the toString()
63	+	*
64	+	* @return the name of this class and its CVS revision
65	+	*/
66	+	public String toString() {
67	+	return FormatName.getName(
68	+	_name,
69	+	getClass().getName(),
70	+	REVISION);
71	+	}
72	+
73	+	//---PRIVATE METHODS---
74	+
75	+	//---ACCESSOR/MUTATOR METHODS---
76	+
77	+	//---ATTRIBUTES---
78
79	<	String xml;
80	<	Logger logger;
81	<	}
79	>	/**
80	>	* This is the friendly identifier of the
81	>	* component this class is running in.
82	>	* eg, a Filter may be called "filter1",
83	>	* If this class does not have an owning
84	>	* component,  a name from the configuration
85	>	* can be placed here.  This name could also
86	>	* be changed to null for utility classes.
87	>	*/
88	>	private String _name = null;
89	>
90	>	//---STATIC ATTRIBUTES---
91	>
92	>	/**
93	>	* A static reference to the system saxParser factory
94	>	*/
95	>	private static SAXParserFactory _factory = SAXParserFactory.newInstance();
96	>
97	>	}

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