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1
7 package org.jboss.xml.binding;
8
9 import org.xml.sax.ContentHandler  ;
10 import org.xml.sax.Locator ;
11 import org.xml.sax.SAXException ;
12 import org.xml.sax.Attributes ;
13
14 import java.io.Writer ;
15 import java.io.IOException ;
16
17
24 public class ContentWriter
25 implements ContentHandler
26 {
27 final boolean useIndent;
28 private String indent = " ";
29 private int depth = 0;
30 private boolean started = false;
31
32 private final Writer writer;
33
34 public ContentWriter(Writer writer, boolean indent)
35 {
36 this.writer = writer;
37 this.useIndent = indent;
38 }
39
40 public void setDocumentLocator(Locator locator)
41 {
42 throw new UnsupportedOperationException ();
43 }
44
45 public void startDocument()
46 throws SAXException
47 {
48 }
49
50 public void endDocument()
51 throws SAXException
52 {
53 }
54
55 public void startPrefixMapping(String prefix, String uri)
56 throws SAXException
57 {
58 throw new UnsupportedOperationException ();
59 }
60
61 public void endPrefixMapping(String prefix)
62 throws SAXException
63 {
64 throw new UnsupportedOperationException ();
65 }
66
67 public void startElement(String namespaceURI, String localName, String qName, Attributes atts)
68 throws SAXException
69 {
70 if(useIndent)
71 {
72 write(writer, '\n');
73 for(int j = 0; j < depth; ++j)
74 {
75 write(writer, indent);
76 }
77 }
78
79 if(!started)
80 {
81 started = true;
82 }
83
84 ++depth;
85
86 write(writer, '<');
87 write(writer, qName);
88
89 if(atts != null && atts.getLength() > 0)
90 {
91 for(int i = 0; i < atts.getLength(); ++i)
92 {
93 write(writer, ' ');
94 write(writer, atts.getQName(i));
95 write(writer, "=\"");
96 write(writer, atts.getValue(i));
97 write(writer, '\"');
98 }
99 }
100
101 if(namespaceURI != null && namespaceURI.length() > 1)
102 {
103 int colon = qName.indexOf(':');
104
112
113 if(colon >= 0)
114 {
115 String prefix = qName.substring(0, colon);
116 if(useIndent)
117 {
118 write(writer, '\n');
119 for(int i = 0; i < depth + 1; ++i)
120 {
121 write(writer, indent);
122 }
123 }
124 else
125 {
126 write(writer, ' ');
127 }
128
129 write(writer, "xmlns:");
130 write(writer, prefix);
131 write(writer, "=\"");
132 write(writer, namespaceURI);
133 write(writer, "\"");
134 }
135 }
136
137 write(writer, '>');
138 }
139
140 public void endElement(String namespaceURI, String localName,
141 String qName)
142 throws SAXException
143 {
144 --depth;
145 if(!started)
146 {
147 if(useIndent)
148 {
149 write(writer, '\n');
150 for(int j = 0; j < depth; ++j)
151 {
152 write(writer, indent);
153 }
154 }
155 }
156 else
157 {
158 started = false;
159 }
160
161 write(writer, "</");
162 write(writer, qName);
163 write(writer, '>');
164 }
165
166 public void characters(char ch[], int start, int length)
167 throws SAXException
168 {
169 write(writer, ch, start, length);
170 }
171
172 public void ignorableWhitespace(char ch[], int start, int length)
173 throws SAXException
174 {
175 throw new UnsupportedOperationException ();
176 }
177
178 public void processingInstruction(String target, String data)
179 throws SAXException
180 {
181 throw new UnsupportedOperationException ();
182 }
183
184 public void skippedEntity(String name)
185 throws SAXException
186 {
187 throw new UnsupportedOperationException ();
188 }
189
190
192 private static void write(Writer writer, String str) throws SAXException
193 {
194 try
195 {
196 writer.write(str);
197 }
198 catch(IOException e)
199 {
200 throw new SAXException ("Writting failed: " + e.getMessage(), e);
201 }
202 }
203
204 private static void write(Writer writer, int ch) throws SAXException
205 {
206 try
207 {
208 writer.write(ch);
209 }
210 catch(IOException e)
211 {
212 throw new SAXException ("Writting failed: " + e.getMessage(), e);
213 }
214 }
215
216 private static void write(Writer writer, char[] ch, int start, int length) throws SAXException
217 {
218 try
219 {
220 writer.write(ch, start, length);
221 }
222 catch(IOException e)
223 {
224 throw new SAXException ("Writting failed: " + e.getMessage(), e);
225 }
226 }
227 }
228 |
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