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

Comparing projects/cms/source/util/uk/org/iscream/cms/util/XMLStringParser.java (file contents):
Revision 1.7 by pjm2, Mon Jan 29 15:36:33 2001 UTC vs.
Revision 1.14 by tdb, Wed Mar 13 12:44:55 2002 UTC

#	Line 1 | Line 1
1		//---PACKAGE DECLARATION---
2	<	package uk.ac.ukc.iscream.util;
2	>	package uk.org.iscream.cms.server.util;
3
4		//---IMPORTS---
5		import java.io.*;
6	<	import java.util.ArrayList;
7	<
6	>	import java.util.LinkedList;
7	>	import java.util.Iterator;
8		import org.xml.sax.*;
9	<	import javax.xml.parsers.SAXParserFactory;
10	<	import javax.xml.parsers.ParserConfigurationException;
11	<	import javax.xml.parsers.SAXParser;
9	>	import org.xml.sax.helpers.*;
10	>	import javax.xml.parsers.*;
11
12		/**
13		* XMLStringParser - Used to assist in creating XMLPacket objects.
#	Line 16 | Line 15 | import javax.xml.parsers.SAXParser;
15		* @author  $Author$
16		* @version $Id$
17		*/
18	<	public class XMLStringParser extends HandlerBase {
18	>	public class XMLStringParser extends DefaultHandler {
19
20		//---FINAL ATTRIBUTES---
21
#	Line 33 | Line 32 | public class XMLStringParser extends HandlerBase {
32		* No-args constructor.  Generally not used.
33		*/
34		public XMLStringParser () {
35	<	this.packet = new XMLPacket();
35	>	_packet = new XMLPacket();
36		}
37
38		/**
39		* Constructor for accepting a reference to an XMLPacket
40		*/
41		public XMLStringParser (XMLPacket packet) {
42	<	this.packet = packet;
42	>	_packet = packet;
43		}
44
45		//---PUBLIC METHODS---
46
48	–	/**
49	–	* Accessor to the XMLPacket.
50	–	*/
51	–	public XMLPacket getXMLPacket() {
52	–	return packet;
53	–	}
54	–
47		//===========================================================
48		// SAX DocumentHandler methods
49		//===========================================================
50
51	<	public void startDocument () throws SAXException {
52	<	//System.out.println("XMLPacketParser - Starting parse process...");
61	<	}
62	<
63	<	public void endDocument () throws SAXException {
64	<	//System.out.println("XMLPacketParser - I just finished parsing an XML String.");
65	<	}
66	<
67	<	/** Add each tag's attribute to the XMLPacket.
51	>	/**
52	>	* Add each tag's attribute to the XMLPacket.
53		* Note that all attributes within an opening tag are
54		* stored as "someroot.sometag.attributes.attribute_name"
55		* E.g. If <packet> is the root node, then:
#	Line 73 | Line 58 | public class XMLStringParser extends HandlerBase {
58		*     "packet.attributes.machine_name"
59		* within the XMLPacket.
60		*/
61	<	public void startElement (String name, AttributeList attrs) throws SAXException {
62	<	indentLevel++;
63	<	tagList.add(name);
64	<	if (attrs != null) {
65	<	for (int i = 0; i < attrs.getLength (); i++) {
81	<	packet.addParam(getPath()+".attributes."+attrs.getName(i), attrs.getValue(i));
61	>	public void startElement (String uri, String name, String qName, Attributes atts) {
62	>	_tagList.addLast(qName);
63	>	if (atts != null) {
64	>	for (int i = 0; i < atts.getLength (); i++) {
65	>	_packet.addParam(getPath()+".attributes."+atts.getQName(i), atts.getValue(i));
66		}
67		}
68		}
69	<
69	>
70		/**
71		* When an XML element is finished with, we must remove
72		* the tag name from the tagList and decrement the indent
73		* level.
74		*/
75	<	public void endElement (String name) throws SAXException {
76	<	tagList.remove(tagList.size()-1);
93	<	indentLevel--;
75	>	public void endElement (String uri, String name, String qName) {
76	>	_tagList.removeLast();
77		}
78	<
78	>
79		/**
80		* Any text falling within a pair of terminal tags must
81		* be added to the XMLPacket.  Trim leading and trailing
#	Line 101 | Line 84 | public class XMLStringParser extends HandlerBase {
84		*/
85		public void characters (char[] buf, int offset, int len) throws SAXException {
86		String s = new String(buf, offset, len);
87	<	packet.addParam(getPath(), s);
87	>	_packet.addParam(getPath(), s);
88		}
89
90		/**
91		* Overrides the {@link java.lang.Object#toString() Object.toString()}
92		* method to provide clean logging (every class should have this).
93		*
94	<	* This uses the uk.ac.ukc.iscream.util.NameFormat class
94	>	* This uses the uk.org.iscream.cms.server.util.NameFormat class
95		* to format the toString()
96		*
97		* @return the name of this class and its CVS revision
#	Line 131 | Line 114 | public class XMLStringParser extends HandlerBase {
114		* in the XMLPacket.
115		*/
116		private String getPath () {
117	<	String path = (String)tagList.get(0);
118	<	if (tagList.size() > 0) {
119	<	for (int i = 1 ; i < tagList.size() ; i++) {
120	<	path = path + "." + (String)tagList.get(i);
117	>	String path = "";
118	>	if (_tagList.size() > 0) {
119	>	Iterator i = _tagList.iterator();
120	>	path = (String) i.next();
121	>	while(i.hasNext()) {
122	>	path = path + "." + (String) i.next();
123		}
124		}
125		return path;
#	Line 142 | Line 127 | public class XMLStringParser extends HandlerBase {
127
128		//---ACCESSOR/MUTATOR METHODS---
129
145	–	//---ATTRIBUTES---
146	–
130		/**
131	<	* To keep track of our identation level
132	<	*/
133	<	private int indentLevel = 0;
131	>	* Accessor to the XMLPacket.
132	>	*/
133	>	public XMLPacket getXMLPacket() {
134	>	return _packet;
135	>	}
136	>
137	>	//---ATTRIBUTES---
138
139		/**
140	<	* An ArrayList of tags
140	>	* A LinkedList of tags
141		*/
142	<	private ArrayList tagList = new ArrayList();
142	>	private LinkedList _tagList = new LinkedList();
143
144		/**
145		* A reference to the XMLPacket we are making
146		*/
147	<	private XMLPacket packet;
147	>	private XMLPacket _packet;
148
149		/**
150		* This is the friendly identifier of the

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