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1 package org.oddjob.arooa.handlers;
2
3 import java.io.OutputStream  ;
4 import java.io.PrintWriter ;
5
6 import org.oddjob.arooa.ArooaHandler;
7 import org.oddjob.arooa.ArooaContext;
8 import org.xml.sax.Attributes ;
9
10
13 public class XmlHandler extends ArooaHandler {
14
15 private final PrintWriter out;
16 private final int level;
17 private boolean hadChild;
18 private boolean lastWasText;
19
20 XmlHandler(PrintWriter out, int level) {
21 this.out = out;
22 this.level = level;
23 }
24
25
30 public XmlHandler(OutputStream out) {
31 this.out = new PrintWriter (out);
32 level = 0;
33 }
34
35 public void onStartElement(String uri, String tag, String qname,
36 Attributes attrs,
37 ArooaContext context) {
38 indent();
39 out.print("<" + tag);
40 for (int i =0; i < attrs.getLength(); ++i) {
41 if (i != 0) {
42 out.println("");
43 indent();
44 indent(tag.length() + 1);
45 }
46 indent(1);
47 out.print(attrs.getQName(i));
48 out.print("=\"");
49 out.print(attrs.getValue(i));
50 out.print('"');
51 }
52 }
53
54 public ArooaHandler onStartChild(String uri, String tag, String qname,
55 Attributes attrs,
56 ArooaContext context) {
57 if (!hadChild) {
58 out.println(">");
59 hadChild = true;
60 }
61 lastWasText = false;
62 return new XmlHandler(out, level + 1);
63 }
64
65 public void onEndElement(String uri, String tag,
66 ArooaContext context) {
67 if (hadChild) {
68 if (!lastWasText) {
69 indent();
70 }
71 out.println("</" + tag + ">");
72 }
73 else {
74 out.println("/>");
75 }
76 out.flush();
77 }
78
79 public void characters(char[] buf, int start, int count, ArooaContext context) {
80 String s = new String (buf, start, count);
81 s = s.trim();
82 if (s.length() == 0) {
83 return;
84 }
85 if (!hadChild) {
86 out.print(">");
87 hadChild = true;
88 }
89 out.write(buf, start, count);
90 lastWasText = true;
91 }
92
93 void indent() {
94 indent(level * 4);
95 }
96
97 void indent(int i) {
98 while (i-- > 0) {
99 out.print(' ');
100
101 }
102 }
103 }
104
105 |
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