1 |
|
|
2 |
|
|
3 |
|
|
4 |
|
|
5 |
|
|
6 |
|
|
7 |
|
|
8 |
|
|
9 |
|
|
10 |
|
|
11 |
|
|
12 |
|
|
13 |
|
|
14 |
|
package org.apache.tapestry.services.impl; |
15 |
|
|
16 |
|
import org.apache.hivemind.Resource; |
17 |
|
import org.apache.hivemind.util.Defense; |
18 |
|
import org.apache.tapestry.*; |
19 |
|
import org.apache.tapestry.asset.AssetFactory; |
20 |
|
import org.apache.tapestry.engine.NullWriter; |
21 |
|
import org.apache.tapestry.json.IJSONWriter; |
22 |
|
import org.apache.tapestry.markup.MarkupWriterSource; |
23 |
|
import org.apache.tapestry.services.RequestLocaleManager; |
24 |
|
import org.apache.tapestry.services.ResponseBuilder; |
25 |
|
import org.apache.tapestry.services.ServiceConstants; |
26 |
|
import org.apache.tapestry.util.ContentType; |
27 |
|
import org.apache.tapestry.util.PageRenderSupportImpl; |
28 |
|
import org.apache.tapestry.web.WebRequest; |
29 |
|
import org.apache.tapestry.web.WebResponse; |
30 |
|
|
31 |
|
import java.io.IOException; |
32 |
|
import java.io.PrintWriter; |
33 |
|
import java.util.ArrayList; |
34 |
|
import java.util.Iterator; |
35 |
|
import java.util.List; |
36 |
|
|
37 |
|
|
38 |
|
|
39 |
|
|
40 |
|
|
41 |
|
|
42 |
|
|
43 |
|
public class JSONResponseBuilder implements ResponseBuilder |
44 |
|
{ |
45 |
|
|
46 |
|
protected IJSONWriter _writer; |
47 |
|
|
48 |
0 |
protected IMarkupWriter _nullWriter = NullWriter.getSharedInstance(); |
49 |
|
|
50 |
|
|
51 |
0 |
protected List _parts = new ArrayList(); |
52 |
|
|
53 |
|
protected RequestLocaleManager _localeManager; |
54 |
|
protected MarkupWriterSource _markupWriterSource; |
55 |
|
|
56 |
|
private WebResponse _response; |
57 |
|
|
58 |
|
private ContentType _contentType; |
59 |
|
|
60 |
|
private final AssetFactory _assetFactory; |
61 |
|
|
62 |
|
private final String _namespace; |
63 |
|
|
64 |
|
private PageRenderSupportImpl _prs; |
65 |
|
|
66 |
|
private IRequestCycle _cycle; |
67 |
|
|
68 |
|
|
69 |
|
|
70 |
|
|
71 |
|
|
72 |
|
|
73 |
|
|
74 |
|
|
75 |
|
|
76 |
|
|
77 |
|
|
78 |
|
|
79 |
|
public JSONResponseBuilder(IRequestCycle cycle, RequestLocaleManager localeManager, |
80 |
|
MarkupWriterSource markupWriterSource, |
81 |
|
WebResponse webResponse, WebRequest request, AssetFactory assetFactory, String namespace) |
82 |
0 |
{ |
83 |
0 |
Defense.notNull(cycle, "cycle"); |
84 |
|
|
85 |
0 |
_cycle = cycle; |
86 |
0 |
_localeManager = localeManager; |
87 |
0 |
_markupWriterSource = markupWriterSource; |
88 |
0 |
_response = webResponse; |
89 |
|
|
90 |
|
|
91 |
|
|
92 |
0 |
_assetFactory = assetFactory; |
93 |
0 |
_namespace = namespace; |
94 |
0 |
} |
95 |
|
|
96 |
|
|
97 |
|
|
98 |
|
|
99 |
|
|
100 |
|
public boolean isDynamic() |
101 |
|
{ |
102 |
0 |
return true; |
103 |
|
} |
104 |
|
|
105 |
|
|
106 |
|
|
107 |
|
|
108 |
|
public void renderResponse(IRequestCycle cycle) |
109 |
|
throws IOException |
110 |
|
{ |
111 |
0 |
_localeManager.persistLocale(); |
112 |
|
|
113 |
0 |
IPage page = cycle.getPage(); |
114 |
|
|
115 |
0 |
_contentType = page.getResponseContentType(); |
116 |
|
|
117 |
0 |
String encoding = _contentType.getParameter(ENCODING_KEY); |
118 |
|
|
119 |
0 |
if (encoding == null) |
120 |
|
{ |
121 |
0 |
encoding = cycle.getEngine().getOutputEncoding(); |
122 |
|
|
123 |
0 |
_contentType.setParameter(ENCODING_KEY, encoding); |
124 |
|
} |
125 |
|
|
126 |
0 |
if (_writer == null) |
127 |
|
{ |
128 |
0 |
parseParameters(cycle); |
129 |
|
|
130 |
0 |
PrintWriter printWriter = _response.getPrintWriter(_contentType); |
131 |
|
|
132 |
0 |
_writer = _markupWriterSource.newJSONWriter(printWriter, _contentType); |
133 |
|
} |
134 |
|
|
135 |
|
|
136 |
|
|
137 |
0 |
_prs = new PageRenderSupportImpl(_assetFactory, _namespace, cycle.getPage().getLocation(), this); |
138 |
|
|
139 |
0 |
TapestryUtils.storePageRenderSupport(cycle, _prs); |
140 |
|
|
141 |
0 |
cycle.renderPage(this); |
142 |
|
|
143 |
0 |
TapestryUtils.removePageRenderSupport(cycle); |
144 |
|
|
145 |
0 |
flush(); |
146 |
|
|
147 |
0 |
_writer.close(); |
148 |
0 |
} |
149 |
|
|
150 |
|
public void flush() |
151 |
|
throws IOException |
152 |
|
{ |
153 |
|
|
154 |
|
|
155 |
|
|
156 |
0 |
_writer.flush(); |
157 |
0 |
} |
158 |
|
|
159 |
|
|
160 |
|
|
161 |
|
|
162 |
|
|
163 |
|
|
164 |
|
|
165 |
|
|
166 |
|
protected void parseParameters(IRequestCycle cycle) |
167 |
|
{ |
168 |
0 |
Object[] updateParts = cycle.getParameters(ServiceConstants.UPDATE_PARTS); |
169 |
|
|
170 |
0 |
if (updateParts == null) |
171 |
0 |
return; |
172 |
|
|
173 |
0 |
for(int i = 0; i < updateParts.length; i++) |
174 |
0 |
_parts.add(updateParts[i].toString()); |
175 |
0 |
} |
176 |
|
|
177 |
|
|
178 |
|
|
179 |
|
|
180 |
|
public void render(IMarkupWriter writer, IRender render, IRequestCycle cycle) |
181 |
|
{ |
182 |
0 |
if (IJSONRender.class.isInstance(render) |
183 |
|
&& IComponent.class.isInstance(render)) |
184 |
|
{ |
185 |
0 |
IJSONRender json = (IJSONRender) render; |
186 |
0 |
IComponent component = (IComponent) render; |
187 |
|
|
188 |
0 |
if (!contains(component, component.peekClientId())) |
189 |
|
{ |
190 |
0 |
render.render(_nullWriter, cycle); |
191 |
0 |
return; |
192 |
|
} |
193 |
|
|
194 |
0 |
json.renderComponent(_writer, cycle); |
195 |
|
} |
196 |
|
|
197 |
0 |
render.render(_nullWriter, cycle); |
198 |
0 |
} |
199 |
|
|
200 |
|
|
201 |
|
|
202 |
|
|
203 |
|
public void updateComponent(String id) |
204 |
|
{ |
205 |
0 |
if (!_parts.contains(id)) |
206 |
0 |
_parts.add(id); |
207 |
0 |
} |
208 |
|
|
209 |
|
|
210 |
|
|
211 |
|
|
212 |
|
|
213 |
|
|
214 |
|
|
215 |
|
|
216 |
|
public boolean contains(IComponent target) |
217 |
|
{ |
218 |
0 |
if (target == null) |
219 |
0 |
return false; |
220 |
|
|
221 |
0 |
String id = target.getClientId(); |
222 |
|
|
223 |
0 |
return contains(target, id); |
224 |
|
} |
225 |
|
|
226 |
|
boolean contains(IComponent target, String id) |
227 |
|
{ |
228 |
0 |
if (_parts.contains(id)) |
229 |
0 |
return true; |
230 |
|
|
231 |
0 |
Iterator it = _cycle.renderStackIterator(); |
232 |
0 |
while (it.hasNext()) |
233 |
|
{ |
234 |
0 |
IComponent comp = (IComponent)it.next(); |
235 |
0 |
String compId = comp.getClientId(); |
236 |
|
|
237 |
0 |
if (comp != target && _parts.contains(compId)) |
238 |
0 |
return true; |
239 |
0 |
} |
240 |
|
|
241 |
0 |
return false; |
242 |
|
} |
243 |
|
|
244 |
|
|
245 |
|
|
246 |
|
|
247 |
|
public boolean explicitlyContains(IComponent target) |
248 |
|
{ |
249 |
0 |
if (target == null) |
250 |
0 |
return false; |
251 |
|
|
252 |
0 |
return _parts.contains(target.getId()); |
253 |
|
} |
254 |
|
|
255 |
|
|
256 |
|
|
257 |
|
|
258 |
|
public IMarkupWriter getWriter() |
259 |
|
{ |
260 |
0 |
return _nullWriter; |
261 |
|
} |
262 |
|
|
263 |
|
|
264 |
|
|
265 |
|
|
266 |
|
public IMarkupWriter getWriter(String id, String type) |
267 |
|
{ |
268 |
0 |
return _nullWriter; |
269 |
|
} |
270 |
|
|
271 |
|
|
272 |
|
|
273 |
|
|
274 |
|
public boolean isBodyScriptAllowed(IComponent target) |
275 |
|
{ |
276 |
0 |
return false; |
277 |
|
} |
278 |
|
|
279 |
|
|
280 |
|
|
281 |
|
|
282 |
|
public boolean isExternalScriptAllowed(IComponent target) |
283 |
|
{ |
284 |
0 |
return false; |
285 |
|
} |
286 |
|
|
287 |
|
|
288 |
|
|
289 |
|
|
290 |
|
public boolean isInitializationScriptAllowed(IComponent target) |
291 |
|
{ |
292 |
0 |
return false; |
293 |
|
} |
294 |
|
|
295 |
|
|
296 |
|
|
297 |
|
|
298 |
|
public boolean isImageInitializationAllowed(IComponent target) |
299 |
|
{ |
300 |
0 |
return false; |
301 |
|
} |
302 |
|
|
303 |
|
|
304 |
|
|
305 |
|
|
306 |
|
public String getPreloadedImageReference(IComponent target, IAsset source) |
307 |
|
{ |
308 |
0 |
return _prs.getPreloadedImageReference(target, source); |
309 |
|
} |
310 |
|
|
311 |
|
|
312 |
|
|
313 |
|
|
314 |
|
public String getPreloadedImageReference(IComponent target, String url) |
315 |
|
{ |
316 |
0 |
return _prs.getPreloadedImageReference(target, url); |
317 |
|
} |
318 |
|
|
319 |
|
|
320 |
|
|
321 |
|
|
322 |
|
public String getPreloadedImageReference(String url) |
323 |
|
{ |
324 |
0 |
return _prs.getPreloadedImageReference(url); |
325 |
|
} |
326 |
|
|
327 |
|
|
328 |
|
|
329 |
|
|
330 |
|
public void addBodyScript(IComponent target, String script) |
331 |
|
{ |
332 |
0 |
_prs.addBodyScript(target, script); |
333 |
0 |
} |
334 |
|
|
335 |
|
|
336 |
|
|
337 |
|
|
338 |
|
public void addBodyScript(String script) |
339 |
|
{ |
340 |
0 |
_prs.addBodyScript(script); |
341 |
0 |
} |
342 |
|
|
343 |
|
|
344 |
|
|
345 |
|
|
346 |
|
public void addExternalScript(IComponent target, Resource resource) |
347 |
|
{ |
348 |
0 |
_prs.addExternalScript(target, resource); |
349 |
0 |
} |
350 |
|
|
351 |
|
|
352 |
|
|
353 |
|
|
354 |
|
public void addExternalScript(Resource resource) |
355 |
|
{ |
356 |
0 |
_prs.addExternalScript(resource); |
357 |
0 |
} |
358 |
|
|
359 |
|
|
360 |
|
|
361 |
|
|
362 |
|
public void addInitializationScript(IComponent target, String script) |
363 |
|
{ |
364 |
0 |
_prs.addInitializationScript(target, script); |
365 |
0 |
} |
366 |
|
|
367 |
|
|
368 |
|
|
369 |
|
|
370 |
|
public void addInitializationScript(String script) |
371 |
|
{ |
372 |
0 |
_prs.addInitializationScript(script); |
373 |
0 |
} |
374 |
|
|
375 |
|
public void addScriptAfterInitialization(IComponent target, String script) |
376 |
|
{ |
377 |
0 |
_prs.addScriptAfterInitialization(target, script); |
378 |
0 |
} |
379 |
|
|
380 |
|
|
381 |
|
|
382 |
|
|
383 |
|
public String getUniqueString(String baseValue) |
384 |
|
{ |
385 |
0 |
return _prs.getUniqueString(baseValue); |
386 |
|
} |
387 |
|
|
388 |
|
|
389 |
|
|
390 |
|
|
391 |
|
public void writeBodyScript(IMarkupWriter writer, IRequestCycle cycle) |
392 |
|
{ |
393 |
0 |
_prs.writeBodyScript(writer, cycle); |
394 |
0 |
} |
395 |
|
|
396 |
|
|
397 |
|
|
398 |
|
|
399 |
|
public void writeInitializationScript(IMarkupWriter writer) |
400 |
|
{ |
401 |
0 |
_prs.writeInitializationScript(writer); |
402 |
0 |
} |
403 |
|
|
404 |
|
|
405 |
|
|
406 |
|
|
407 |
|
public void beginBodyScript(IMarkupWriter writer, IRequestCycle cycle) |
408 |
|
{ |
409 |
|
|
410 |
0 |
} |
411 |
|
|
412 |
|
|
413 |
|
|
414 |
|
|
415 |
|
public void endBodyScript(IMarkupWriter writer, IRequestCycle cycle) |
416 |
|
{ |
417 |
|
|
418 |
0 |
} |
419 |
|
|
420 |
|
|
421 |
|
|
422 |
|
|
423 |
|
public void writeBodyScript(IMarkupWriter writer, String script, IRequestCycle cycle) |
424 |
|
{ |
425 |
|
|
426 |
0 |
} |
427 |
|
|
428 |
|
|
429 |
|
|
430 |
|
|
431 |
|
public void writeExternalScript(IMarkupWriter normalWriter, String url, IRequestCycle cycle) |
432 |
|
{ |
433 |
|
|
434 |
0 |
} |
435 |
|
|
436 |
|
|
437 |
|
|
438 |
|
|
439 |
|
public void writeImageInitializations(IMarkupWriter writer, String script, String preloadName, IRequestCycle cycle) |
440 |
|
{ |
441 |
|
|
442 |
0 |
} |
443 |
|
|
444 |
|
|
445 |
|
|
446 |
|
|
447 |
|
public void writeInitializationScript(IMarkupWriter writer, String script) |
448 |
|
{ |
449 |
|
|
450 |
0 |
} |
451 |
|
|
452 |
|
|
453 |
|
|
454 |
|
|
455 |
|
|
456 |
|
public void addStatusMessage(IMarkupWriter normalWriter, String category, String text) |
457 |
|
{ |
458 |
0 |
} |
459 |
|
} |