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package org.apache.tapestry.describe; |
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import java.util.ArrayList; |
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import java.util.Collection; |
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import java.util.Iterator; |
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import org.apache.hivemind.util.Defense; |
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import org.apache.tapestry.IMarkupWriter; |
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public class HTMLDescriptionReceiver implements RootDescriptionReciever |
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{ |
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static final String NULL_VALUE = "<NULL>"; |
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private final IMarkupWriter _writer; |
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|
44 | 0 | private boolean _emitDefault = true; |
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private String _title; |
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private String _section; |
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private DescribableStrategy _strategy; |
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private HTMLDescriptionReceiverStyles _styles; |
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|
54 | 0 | private boolean _even = true; |
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public HTMLDescriptionReceiver(IMarkupWriter writer, |
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DescribableStrategy adapter) |
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{ |
59 | 0 | this(writer, adapter, new HTMLDescriptionReceiverStyles()); |
60 | 0 | } |
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|
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public HTMLDescriptionReceiver(IMarkupWriter writer, |
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DescribableStrategy strategy, HTMLDescriptionReceiverStyles styles) |
64 | 0 | { |
65 | 0 | Defense.notNull(writer, "writer"); |
66 | 0 | Defense.notNull(strategy, "strategy"); |
67 | 0 | Defense.notNull(styles, "styles"); |
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|
69 | 0 | _writer = writer; |
70 | 0 | _strategy = strategy; |
71 | 0 | _styles = styles; |
72 | 0 | } |
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public void describe(Object object) |
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{ |
81 | 0 | if (object == null) |
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{ |
83 | 0 | _writer.print(NULL_VALUE); |
84 | 0 | return; |
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} |
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|
87 | 0 | _strategy.describeObject(object, this); |
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|
89 | 0 | finishUp(object); |
90 | 0 | } |
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public void describeAlternate(Object alternate) |
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{ |
94 | 0 | _strategy.describeObject(alternate, this); |
95 | 0 | } |
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public void finishUp() |
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{ |
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101 | 0 | if (!_emitDefault) _writer.end("table"); |
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103 | 0 | _writer.println(); |
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|
105 | 0 | _emitDefault = true; |
106 | 0 | _title = null; |
107 | 0 | _section = null; |
108 | 0 | _even = true; |
109 | 0 | } |
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|
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void finishUp(Object object) |
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{ |
113 | 0 | if (_emitDefault) |
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{ |
115 | 0 | String value = _title != null ? _title : object.toString(); |
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|
117 | 0 | _writer.print(value); |
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} |
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|
120 | 0 | finishUp(); |
121 | 0 | } |
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public void title(String title) |
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{ |
125 | 0 | Defense.notNull(title, "title"); |
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|
127 | 0 | if (_title != null) |
128 | 0 | throw new IllegalStateException(DescribeMessages.setTitleOnce()); |
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|
130 | 0 | _title = title; |
131 | 0 | } |
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public void section(String section) |
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{ |
135 | 0 | Defense.notNull(section, "section"); |
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|
137 | 0 | if (_title == null) |
138 | 0 | throw new IllegalStateException(DescribeMessages |
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.mustSetTitleBeforeSection()); |
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|
141 | 0 | _section = section; |
142 | 0 | } |
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private void assertTitleSet() |
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{ |
146 | 0 | if (_title == null) |
147 | 0 | throw new IllegalStateException(DescribeMessages |
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.mustSetTitleBeforeProperty()); |
149 | 0 | } |
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private void emitSection() |
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{ |
158 | 0 | if (_emitDefault) |
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{ |
160 | 0 | _emitDefault = false; |
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|
162 | 0 | _writer.begin("div"); |
163 | 0 | _writer.attribute("class", _styles.getHeaderClass()); |
164 | 0 | _writer.print(_title); |
165 | 0 | _writer.end(); |
166 | 0 | _writer.println(); |
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|
168 | 0 | _writer.begin("table"); |
169 | 0 | _writer.attribute("class", _styles.getTableClass()); |
170 | 0 | _writer.println(); |
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|
172 | 0 | _even = true; |
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} |
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|
175 | 0 | if (_section != null) |
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{ |
177 | 0 | _writer.begin("tr"); |
178 | 0 | _writer.attribute("class", _styles.getSubheaderClass()); |
179 | 0 | _writer.begin("th"); |
180 | 0 | _writer.attribute("colspan", 2); |
181 | 0 | _writer.print(_section); |
182 | 0 | _writer.end("tr"); |
183 | 0 | _writer.println(); |
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|
185 | 0 | _section = null; |
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|
187 | 0 | _even = true; |
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} |
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|
190 | 0 | } |
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|
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private void pair(String key, String value) |
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{ |
194 | 0 | assertTitleSet(); |
195 | 0 | emitSection(); |
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|
197 | 0 | _writer.begin("tr"); |
198 | 0 | writeRowClass(); |
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|
200 | 0 | _writer.begin("th"); |
201 | 0 | _writer.print(key); |
202 | 0 | _writer.end(); |
203 | 0 | _writer.begin("td"); |
204 | 0 | _writer.print(value); |
205 | 0 | _writer.end("tr"); |
206 | 0 | _writer.println(); |
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|
208 | 0 | } |
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|
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private void writeRowClass() |
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{ |
212 | 0 | _writer.attribute("class", _even ? "even" : "odd"); |
213 | 0 | _even = !_even; |
214 | 0 | } |
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|
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public void property(String key, Object value) |
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{ |
218 | 0 | Defense.notNull(key, "key"); |
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|
220 | 0 | assertTitleSet(); |
221 | 0 | emitSection(); |
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|
223 | 0 | _writer.begin("tr"); |
224 | 0 | writeRowClass(); |
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|
226 | 0 | _writer.begin("th"); |
227 | 0 | _writer.print(key); |
228 | 0 | _writer.end(); |
229 | 0 | _writer.begin("td"); |
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|
231 | 0 | describeNested(value); |
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|
233 | 0 | _writer.end("tr"); |
234 | 0 | _writer.println(); |
235 | 0 | } |
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|
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private void describeNested(Object value) |
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{ |
239 | 0 | if (value == null) |
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{ |
241 | 0 | _writer.print(NULL_VALUE); |
242 | 0 | return; |
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} |
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|
245 | 0 | new HTMLDescriptionReceiver(_writer, _strategy, _styles).describe(value); |
246 | 0 | } |
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|
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public void property(String key, boolean value) |
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{ |
250 | 0 | Defense.notNull(key, "key"); |
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|
254 | 0 | pair(key, value ? "true" : "false"); |
255 | 0 | } |
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public void property(String key, byte value) |
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{ |
259 | 0 | Defense.notNull(key, "key"); |
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|
261 | 0 | pair(key, Byte.toString(value)); |
262 | 0 | } |
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public void property(String key, short value) |
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{ |
266 | 0 | Defense.notNull(key, "key"); |
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|
268 | 0 | pair(key, Short.toString(value)); |
269 | 0 | } |
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public void property(String key, int value) |
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{ |
273 | 0 | Defense.notNull(key, "key"); |
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|
275 | 0 | pair(key, Integer.toString(value)); |
276 | 0 | } |
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public void property(String key, long value) |
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{ |
280 | 0 | Defense.notNull(key, "key"); |
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|
282 | 0 | pair(key, Long.toString(value)); |
283 | 0 | } |
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public void property(String key, float value) |
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{ |
287 | 0 | Defense.notNull(key, "key"); |
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|
289 | 0 | pair(key, Float.toString(value)); |
290 | 0 | } |
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public void property(String key, double value) |
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{ |
294 | 0 | Defense.notNull(key, "key"); |
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|
296 | 0 | pair(key, Double.toString(value)); |
297 | 0 | } |
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public void property(String key, char value) |
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{ |
301 | 0 | Defense.notNull(key, "key"); |
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|
303 | 0 | pair(key, Character.toString(value)); |
304 | 0 | } |
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public void array(String key, Object[] values) |
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{ |
308 | 0 | Defense.notNull(key, "key"); |
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|
310 | 0 | assertTitleSet(); |
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|
312 | 0 | if (values == null || values.length == 0) return; |
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|
314 | 0 | emitSection(); |
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|
316 | 0 | for(int i = 0; i < values.length; i++) |
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{ |
318 | 0 | _writer.begin("tr"); |
319 | 0 | writeRowClass(); |
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|
321 | 0 | _writer.begin("th"); |
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|
323 | 0 | if (i == 0) _writer.print(key); |
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|
325 | 0 | _writer.end(); |
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|
327 | 0 | _writer.begin("td"); |
328 | |
|
329 | 0 | describeNested(values[i]); |
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|
331 | 0 | _writer.end("tr"); |
332 | 0 | _writer.println(); |
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} |
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|
335 | 0 | } |
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public void collection(String key, Collection values) |
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{ |
339 | 0 | Defense.notNull(key, "key"); |
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|
341 | 0 | assertTitleSet(); |
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|
343 | 0 | if (values == null || values.isEmpty()) return; |
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|
345 | 0 | emitSection(); |
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|
347 | 0 | Iterator i = new ArrayList(values).iterator(); |
348 | 0 | boolean first = true; |
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|
350 | 0 | while(i.hasNext()) |
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{ |
352 | 0 | _writer.begin("tr"); |
353 | 0 | writeRowClass(); |
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|
355 | 0 | _writer.begin("th"); |
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|
357 | 0 | if (first) |
358 | 0 | _writer.print(key); |
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|
360 | 0 | _writer.end(); |
361 | 0 | _writer.begin("td"); |
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|
363 | 0 | describeNested(i.next()); |
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|
365 | 0 | _writer.end("tr"); |
366 | 0 | _writer.println(); |
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|
368 | 0 | first = false; |
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} |
370 | 0 | } |
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} |