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1
28
29
30 package com.caucho.widget;
31
32 import com.caucho.portal.generic.FastPrintWriter;
33 import com.caucho.util.L10N;
34
35 import java.io.IOException  ;
36 import java.io.Writer ;
37 import java.util.logging.Logger ;
38
39 public class WidgetWriter
40 extends FastPrintWriter
41 {
42 private static L10N L = new L10N( WidgetWriter.class );
43
44 static protected final Logger log =
45 Logger.getLogger( WidgetWriter.class.getName() );
46
47 private boolean _isCompact;
48 private boolean _closeElementNeeded;
49 private boolean _closeElementNewline;
50
51 public WidgetWriter( Writer writer )
52 throws IOException
53 {
54 super( writer );
55 }
56
57
60 public void setCompact( boolean compact )
61 {
62 _isCompact = compact;
63 }
64
65
69 public void flush()
70 {
71 closeElementIfNeeded();
72 }
73
74 public void startElement( String name )
75 throws IOException
76 {
77 startElement( name, false );
78 }
79
80
85 public void startElement( String name, boolean newline )
86 throws IOException
87 {
88 closeElementIfNeeded();
89
90 write( '<' );
91 write( name );
92
93 _closeElementNeeded = true;
94 _closeElementNewline = newline;
95 }
96
97 public void writeAttribute( String name, Object value )
98 throws IOException
99 {
100 write(' ');
101 writeEscaped( name );
102 write("=\"");
103
104 writeEscaped( value );
105 write('\"');
106 }
107
108 public void writeAttribute( String name, WidgetURL url )
109 throws IOException
110 {
111 write(' ');
112 write( name );
113 write("=\"");
114
115 write( url.toString() );
116 write('\"');
117 }
118
119 public void writeComment( Object comment )
120 throws IOException
121 {
122 closeElementIfNeeded();
123
124 write( "<!--" );
125 writeEscaped( comment.toString() );
126 write( "-->" );
127 }
128
129
132 public void writeText( Object object )
133 throws IOException
134 {
135 closeElementIfNeeded();
136
137 String string = object.toString();
138 int len = string.length();
139
140 for (int i = 0; i < len; i++) {
141 writeEscaped( string.charAt(i) );
142 }
143 }
144
145
148 public void writeText( char buf[] )
149 throws IOException
150 {
151 closeElementIfNeeded();
152
153 int endIndex = buf.length;
154
155 for (int i = 0; i < endIndex; i++) {
156 writeEscaped( buf[i] );
157 }
158 }
159
160
163 public void writeText( char buf[], int offset, int length )
164 throws IOException
165 {
166 closeElementIfNeeded();
167
168 int endIndex = offset + length;
169
170 for (int i = offset; i < endIndex; i++) {
171 writeEscaped( buf[i] );
172 }
173 }
174
175 public void writeText( char ch )
176 throws IOException
177 {
178 closeElementIfNeeded();
179
180 writeEscaped( ch );
181 }
182
183 public void endElement( String name )
184 throws IOException
185 {
186 endElement( name, false );
187 }
188
189
194 public void endElement( String name, boolean newline )
195 throws IOException
196 {
197 closeElementIfNeeded();
198
199 write( "</" );
200 write( name );
201 write( ">" );
202
203 if ( newline )
204 printlnUnlessCompact();
205 }
206
207 public void close()
208 {
209 closeElementIfNeeded();
210
211 super.close();
212 }
213
214 protected void closeElementIfNeeded()
215 {
216 if ( _closeElementNeeded ) {
217 _closeElementNeeded = false;
218 write( '>' );
219
220 if ( _closeElementNewline ) {
221 printlnUnlessCompact();
222 _closeElementNewline = false;
223 }
224 }
225 }
226
227 private void printlnUnlessCompact()
228 {
229 if ( ! _isCompact )
230 println();
231 }
232
233 private void writeEscaped( Object object )
234 throws IOException
235 {
236 String string = object.toString();
237
238 int len = string.length();
239
240 for (int i = 0; i < len; i++) {
241 writeEscaped( string.charAt(i) );
242 }
243 }
244
245 private void writeEscaped( char ch )
246 throws IOException
247 {
248 switch ( ch ) {
249 case '<': write( "<" ); break;
250 case '>': write( ">" ); break;
251 case '&': write( "&" ); break;
252 case '\"': write( """ ); break;
253 case '\'': write( "’" ); break;
254 default: write( ch );
255 }
256 }
257 }
258 |
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