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root/i-scream/experimental/server/XMLReader/XMLPacketMaker.java

Comparing experimental/server/XMLReader/XMLPacketMaker.java (file contents):
Revision 1.2 by pjm2, Tue Nov 14 09:18:20 2000 UTC vs.
Revision 1.5 by pjm2, Tue Nov 14 10:04:01 2000 UTC

#	Line 1 | Line 1
1	<	import java.io.*;
2	<
3	<	import org.xml.sax.*;
4	<
5	<	import javax.xml.parsers.SAXParserFactory;
6	<	import javax.xml.parsers.ParserConfigurationException;
7	<	import javax.xml.parsers.SAXParser;
8	<
9	<
10	<	public class XMLPacketMaker extends HandlerBase
11	<	{
12	<	public static void main (String argv [])
13	<	{
14	<	if (argv.length != 1) {
15	<	System.err.println ("Usage: cmd filename.xml");
16	<	System.exit (1);
17	<	}
18	<
19	<	// Use the default (non-validating) parser
20	<	SAXParserFactory factory = SAXParserFactory.newInstance();
21	<	try {
22	<	// Set up output stream
23	<	out = new OutputStreamWriter (System.out, "UTF8");
24	<
25	<	// Parse the input
26	<	SAXParser saxParser = factory.newSAXParser();
27	<	saxParser.parse( new File(argv [0]), new XMLPacketMaker() );
28	<
29	<	} catch (Throwable t) {
30	<	t.printStackTrace ();
31	<	}
32	<	System.exit (0);
33	<	}
34	<
35	<	static private Writer  out;
36	<	private String indentString = "    "; // Amount to indent
37	<	private int indentLevel = 0;
38	<
39	<
40	<	//===========================================================
41	<	// SAX DocumentHandler methods
42	<	//===========================================================
43	<
44	<	public void startDocument ()
45	<	throws SAXException
46	<	{
47	<	nl();
48	<	//nl();
49	<	emit ("START DOCUMENT");
50	<	nl();
51	<	//emit ("<?xml version='1.0' encoding='UTF-8'?>");
52	<	}
53	<
54	<	public void endDocument ()
55	<	throws SAXException
56	<	{
57	<	nl(); emit ("END DOCUMENT");
58	<	try {
59	<	nl();
60	<	out.flush ();
61	<	} catch (IOException e) {
62	<	throw new SAXException ("I/O error", e);
63	<	}
64	<	}
65	<
66	<	public void startElement (String name, AttributeList attrs)
67	<	throws SAXException
68	<	{
69	<	indentLevel++;
70	<	//nl(); emit ("ELEMENT: ");
71	<	//emit ("<"+name);
72	<	if (attrs != null) {
73	<	for (int i = 0; i < attrs.getLength (); i++) {
74	<	nl();
75	<	emit("   ATTR: ");
76	<	emit (attrs.getName (i));
77	<	emit ("\t\"");
78	<	emit (attrs.getValue (i));
79	<	emit ("\"");
80	<	}
81	<	}
82	<	//if (attrs.getLength() > 0) nl();
83	<	//emit (">");
84	<	}
85	<
86	<	public void endElement (String name)
87	<	throws SAXException
88	<	{
89	<	//nl();
90	<	//emit ("END_ELM: ");
91	<	//emit ("</"+name+">");
92	<	indentLevel--;
93	<	}
94	<
95	<	public void characters (char buf [], int offset, int len) throws SAXException {
96	<	nl(); emit ("Value:   ");
97	<	String s = new String(buf, offset, len);
98	<	if (!s.trim().equals("")) emit (s);
99	<	}
100	<
101	<	//===========================================================
102	<	// Helpers ...
103	<	//===========================================================
104	<
105	<	// Wrap I/O exceptions in SAX exceptions, to
106	<	// suit handler signature requirements
107	<	private void emit (String s) throws SAXException {
108	<	try {
109	<	out.write (s);
110	<	out.flush ();
111	<	} catch (IOException e) {
112	<	throw new SAXException ("I/O error", e);
113	<	}
114	<	}
115	<
116	<	// Start a new line
117	<	// and indent the next line appropriately
118	<	private void nl () throws SAXException {
119	<	String lineEnd =  System.getProperty("line.separator");
120	<	try {
121	<	out.write (lineEnd);
122	<	for (int i=0; i < indentLevel; i++) out.write(indentString);
123	<	} catch (IOException e) {
124	<	throw new SAXException ("I/O error", e);
125	<	}
126	<	}
127	<	}
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	>
11	>	public class XMLPacketMaker extends HandlerBase {
12	>
13	>	public XMLPacketMaker () {
14	>	// default no-args constructor.
15	>	}
16	>
17	>	// Constructor for accepting a reference to an XMLPacket
18	>	public XMLPacketMaker (XMLPacket packet) {
19	>	this.packet = packet;
20	>	}
21	>
22	>	public static void main(String[] args){
23	>	if (args.length != 1) {
24	>	System.err.println ("Usage: cmd filename");
25	>	System.exit (1);
26	>	}
27	>
28	>	// Use the default (non-validating) parser
29	>	SAXParserFactory factory = SAXParserFactory.newInstance();
30	>	try {
31	>	// Set up output stream
32	>	out = new OutputStreamWriter (System.out, "UTF8");
33	>
34	>	// Create the XMLPacket to store values in.
35	>	packet = new XMLPacket();
36	>
37	>	// Parse the input
38	>	SAXParser saxParser = factory.newSAXParser();
39	>	saxParser.parse(new File(args[0]), new XMLPacketMaker(packet));
40	>
41	>	// Print out some things from the packet: -
42	>
43	>
44	>	} catch (Throwable t) {
45	>	t.printStackTrace ();
46	>	}
47	>	System.exit (0);
48	>	}
49	>
50	>	static private Writer out;
51	>	private String indentString = "    "; // Amount to indent
52	>	private int indentLevel = 0;
53	>
54	>	// For storing the tag heirarchy.
55	>	private ArrayList tagList = new ArrayList();
56	>	static private XMLPacket packet = null;
57	>
58	>	//===========================================================
59	>	// SAX DocumentHandler methods
60	>	//===========================================================
61	>
62	>	public void startDocument () throws SAXException {
63	>	nl();
64	>	nl();
65	>	emit ("START DOCUMENT");
66	>	nl();
67	>	emit ("<?xml version='1.0' encoding='UTF-8'?>");
68	>	}
69	>
70	>	public void endDocument () throws SAXException {
71	>	nl(); emit ("END DOCUMENT");
72	>	try {
73	>	nl();
74	>	out.flush ();
75	>	} catch (IOException e) {
76	>	throw new SAXException ("I/O error", e);
77	>	}
78	>	}
79	>
80	>	public void startElement (String name, AttributeList attrs) throws SAXException {
81	>	indentLevel++;
82	>	tagList.add(name);
83	>	nl(); emit ("ELEMENT: ");
84	>	emit ("<"+name);
85	>	if (attrs != null) {
86	>	for (int i = 0; i < attrs.getLength (); i++) {
87	>	nl();
88	>	emit("   ATTR: ");
89	>	emit (attrs.getName (i));
90	>	emit ("\t\"");
91	>	emit (attrs.getValue (i));
92	>	emit ("\"");
93	>	}
94	>	}
95	>	if (attrs.getLength() > 0) nl();
96	>	emit (">");
97	>	}
98	>
99	>	public void endElement (String name) throws SAXException {
100	>	nl();
101	>	emit ("END_ELM: ");
102	>	emit ("</"+name+">");
103	>	tagList.remove(tagList.size()-1);
104	>	indentLevel--;
105	>	}
106	>
107	>	public void characters (char[] buf, int offset, int len) throws SAXException {
108	>	nl(); emit ("CHARS:   ");
109	>	String s = new String(buf, offset, len);
110	>	if (!s.trim().equals("")) {
111	>	emit (s);
112	>	packet.addParam((String)tagList.get(tagList.size()-1), s);
113	>	}
114	>	}
115	>
116	>	//===========================================================
117	>	// Helpers ...
118	>	//===========================================================
119	>
120	>	// Wrap I/O exceptions in SAX exceptions, to
121	>	// suit handler signature requirements
122	>	private void emit (String s) throws SAXException {
123	>	try {
124	>	out.write (s);
125	>	out.flush ();
126	>	} catch (IOException e) {
127	>	throw new SAXException ("I/O error", e);
128	>	}
129	>	}
130	>
131	>	// Start a new line
132	>	// and indent the next line appropriately
133	>	private void nl () throws SAXException {
134	>	String lineEnd =  System.getProperty("line.separator");
135	>	try {
136	>	out.write (lineEnd);
137	>	for (int i=0; i < indentLevel; i++) out.write(indentString);
138	>	} catch (IOException e) {
139	>	throw new SAXException ("I/O error", e);
140	>	}
141	>	}
142	>	}

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