1 | // Copyright 2012 Georg-August-Universität Göttingen, Germany |
---|
2 | // |
---|
3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
---|
4 | // you may not use this file except in compliance with the License. |
---|
5 | // You may obtain a copy of the License at |
---|
6 | // |
---|
7 | // http://www.apache.org/licenses/LICENSE-2.0 |
---|
8 | // |
---|
9 | // Unless required by applicable law or agreed to in writing, software |
---|
10 | // distributed under the License is distributed on an "AS IS" BASIS, |
---|
11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
---|
12 | // See the License for the specific language governing permissions and |
---|
13 | // limitations under the License. |
---|
14 | |
---|
15 | package de.ugoe.cs.autoquest.tasktrees; |
---|
16 | |
---|
17 | import java.util.ArrayList; |
---|
18 | import java.util.HashMap; |
---|
19 | import java.util.HashSet; |
---|
20 | import java.util.LinkedList; |
---|
21 | import java.util.List; |
---|
22 | import java.util.Map; |
---|
23 | import java.util.Set; |
---|
24 | import java.util.regex.Matcher; |
---|
25 | import java.util.regex.Pattern; |
---|
26 | |
---|
27 | import de.ugoe.cs.autoquest.eventcore.Event; |
---|
28 | import de.ugoe.cs.autoquest.eventcore.IEventTarget; |
---|
29 | import de.ugoe.cs.autoquest.eventcore.IEventType; |
---|
30 | import de.ugoe.cs.autoquest.eventcore.StringEventType; |
---|
31 | import de.ugoe.cs.autoquest.eventcore.gui.MouseButtonInteraction; |
---|
32 | import de.ugoe.cs.autoquest.eventcore.gui.MouseClick; |
---|
33 | import de.ugoe.cs.autoquest.eventcore.gui.Scroll; |
---|
34 | import de.ugoe.cs.autoquest.eventcore.gui.TextInput; |
---|
35 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IEventTask; |
---|
36 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IEventTaskInstance; |
---|
37 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IIteration; |
---|
38 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IIterationInstance; |
---|
39 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IOptional; |
---|
40 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IOptionalInstance; |
---|
41 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ISelection; |
---|
42 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ISelectionInstance; |
---|
43 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ISequence; |
---|
44 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ISequenceInstance; |
---|
45 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITask; |
---|
46 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskBuilder; |
---|
47 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskFactory; |
---|
48 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskInstance; |
---|
49 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITaskInstanceList; |
---|
50 | import de.ugoe.cs.autoquest.tasktrees.treeifc.IUserSession; |
---|
51 | import de.ugoe.cs.autoquest.test.DummyGUIElement; |
---|
52 | import de.ugoe.cs.autoquest.test.DummyTextField; |
---|
53 | |
---|
54 | /** |
---|
55 | * This is a convenience class to parse a textual specification of an expected task structure to |
---|
56 | * allow for a subsequent comparison of the specified structure with an existing one. |
---|
57 | * |
---|
58 | * @version $Revision: $ $Date: 01.04.2012$ |
---|
59 | * @author 2012, last modified by $Author: patrick$ |
---|
60 | */ |
---|
61 | public class TaskTreeDecoder { |
---|
62 | |
---|
63 | /** */ |
---|
64 | private static Pattern taskInstancePattern = Pattern.compile("([^{}]+)\\{|\\}"); |
---|
65 | |
---|
66 | /** */ |
---|
67 | private static Pattern taskInstanceDetailsPattern = |
---|
68 | Pattern.compile("\\s*(\\w*)\\s*([\\w\\(\\)\"]*)\\s*(\\(([\\w*\\s*]*)\\))?((\\w*)|(\".*\"))?"); |
---|
69 | |
---|
70 | /** */ |
---|
71 | private ITaskFactory taskFactory; |
---|
72 | |
---|
73 | /** */ |
---|
74 | private ITaskBuilder taskBuilder; |
---|
75 | |
---|
76 | /** */ |
---|
77 | Map<String, IEventTarget> targets = new HashMap<String, IEventTarget>(); |
---|
78 | |
---|
79 | /** */ |
---|
80 | Map<String, ITask> tasks = new HashMap<String, ITask>(); |
---|
81 | |
---|
82 | /** |
---|
83 | * |
---|
84 | */ |
---|
85 | public TaskTreeDecoder(ITaskFactory taskFactory, ITaskBuilder taskBuilder) { |
---|
86 | super(); |
---|
87 | this.taskFactory = taskFactory; |
---|
88 | this.taskBuilder = taskBuilder; |
---|
89 | } |
---|
90 | |
---|
91 | /** |
---|
92 | * |
---|
93 | */ |
---|
94 | public ITaskInstanceList decode(String taskTreeSpec) { |
---|
95 | ITaskInstanceList taskInstanceList = null; |
---|
96 | |
---|
97 | Matcher taskMatcher = taskInstancePattern.matcher(taskTreeSpec); |
---|
98 | |
---|
99 | if (taskMatcher.find()) { |
---|
100 | taskInstanceList = parseTaskInstanceList(taskMatcher); |
---|
101 | } |
---|
102 | |
---|
103 | if (taskMatcher.find()) { |
---|
104 | throw new IllegalArgumentException("too many tasks specified"); |
---|
105 | } |
---|
106 | |
---|
107 | correctTargets(taskInstanceList); |
---|
108 | |
---|
109 | // validate the instance list |
---|
110 | try { |
---|
111 | new TaskTreeValidator().validate(taskInstanceList); |
---|
112 | } |
---|
113 | catch (java.lang.AssertionError e) { |
---|
114 | throw new IllegalArgumentException(e.getMessage(), e); |
---|
115 | } |
---|
116 | |
---|
117 | return taskInstanceList; |
---|
118 | } |
---|
119 | |
---|
120 | /** |
---|
121 | * |
---|
122 | */ |
---|
123 | private ITaskInstanceList parseTaskInstanceList(Matcher taskMatcher) { |
---|
124 | if ("}".equals(taskMatcher.group(1))) { |
---|
125 | throw new IllegalArgumentException("invalid task instance list specification"); |
---|
126 | } |
---|
127 | |
---|
128 | String taskDetails = taskMatcher.group(1); |
---|
129 | |
---|
130 | Matcher matcher = taskInstanceDetailsPattern.matcher(taskDetails); |
---|
131 | |
---|
132 | if (!matcher.find()) { |
---|
133 | throw new IllegalArgumentException("could not parse task details"); |
---|
134 | } |
---|
135 | |
---|
136 | String type = matcher.group(1); |
---|
137 | |
---|
138 | ITaskInstanceList list; |
---|
139 | |
---|
140 | if ("UserSession".equals(type)) { |
---|
141 | list = taskFactory.createUserSession(); |
---|
142 | } |
---|
143 | else if ("TaskInstances".equals(type)) { |
---|
144 | list = taskFactory.createNewTaskInstance(taskFactory.createNewSequence()); |
---|
145 | } |
---|
146 | else { |
---|
147 | throw new IllegalArgumentException("unknown type of task instance list: " + type); |
---|
148 | } |
---|
149 | |
---|
150 | while (taskMatcher.find() && !"}".equals(taskMatcher.group(0))) { |
---|
151 | ITaskInstance childInstance = parseTaskInstance(taskMatcher); |
---|
152 | |
---|
153 | if (!(list instanceof IUserSession)) { |
---|
154 | taskBuilder.addChild |
---|
155 | ((ISequence) ((ITaskInstance) list).getTask(), childInstance.getTask()); |
---|
156 | } |
---|
157 | |
---|
158 | taskBuilder.addTaskInstance(list, childInstance); |
---|
159 | } |
---|
160 | |
---|
161 | return list; |
---|
162 | } |
---|
163 | |
---|
164 | /** |
---|
165 | * |
---|
166 | */ |
---|
167 | private ITaskInstance parseTaskInstance(Matcher taskMatcher) { |
---|
168 | if ("}".equals(taskMatcher.group(1))) { |
---|
169 | throw new IllegalArgumentException("invalid task instance specification"); |
---|
170 | } |
---|
171 | |
---|
172 | String taskDetails = taskMatcher.group(1); |
---|
173 | |
---|
174 | Matcher matcher = taskInstanceDetailsPattern.matcher(taskDetails); |
---|
175 | |
---|
176 | if (!matcher.find()) { |
---|
177 | throw new IllegalArgumentException("could not parse task details"); |
---|
178 | } |
---|
179 | |
---|
180 | String type = matcher.group(1); |
---|
181 | String id = matcher.group(2); |
---|
182 | |
---|
183 | // determine the children before creating this instance |
---|
184 | List<ITaskInstance> children = new LinkedList<ITaskInstance>(); |
---|
185 | while (taskMatcher.find() && !"}".equals(taskMatcher.group(0))) { |
---|
186 | children.add(parseTaskInstance(taskMatcher)); |
---|
187 | } |
---|
188 | |
---|
189 | // get the model |
---|
190 | ITask task = getCreateTask(id, type, children); |
---|
191 | |
---|
192 | // create the respective instance |
---|
193 | ITaskInstance instance; |
---|
194 | |
---|
195 | if (task instanceof ISequence) { |
---|
196 | instance = taskFactory.createNewTaskInstance((ISequence) task); |
---|
197 | } |
---|
198 | else if (task instanceof ISelection) { |
---|
199 | instance = taskFactory.createNewTaskInstance((ISelection) task); |
---|
200 | } |
---|
201 | else if (task instanceof IIteration) { |
---|
202 | instance = taskFactory.createNewTaskInstance((IIteration) task); |
---|
203 | } |
---|
204 | else if (task instanceof IOptional) { |
---|
205 | instance = taskFactory.createNewTaskInstance((IOptional) task); |
---|
206 | } |
---|
207 | else { |
---|
208 | Event event = createUserInteractionEvent(type, id, matcher.group(4)); |
---|
209 | instance = taskFactory.createNewTaskInstance((IEventTask) task, event); |
---|
210 | } |
---|
211 | |
---|
212 | // add the children to the instance |
---|
213 | for (ITaskInstance childInstance : children) { |
---|
214 | if (instance instanceof ISequenceInstance) { |
---|
215 | taskBuilder.addChild((ISequenceInstance) instance, childInstance); |
---|
216 | } |
---|
217 | else if (instance instanceof ISelectionInstance) { |
---|
218 | if (((ISelectionInstance) instance).getChild() == null) { |
---|
219 | taskBuilder.setChild((ISelectionInstance) instance, childInstance); |
---|
220 | } |
---|
221 | else { |
---|
222 | throw new IllegalArgumentException("can not add several children to one " + |
---|
223 | "selection instance"); |
---|
224 | } |
---|
225 | } |
---|
226 | else if (instance instanceof IIterationInstance) { |
---|
227 | taskBuilder.addChild((IIterationInstance) instance, childInstance); |
---|
228 | } |
---|
229 | else if (instance instanceof IOptionalInstance) { |
---|
230 | if (((IOptionalInstance) instance).getChild() == null) { |
---|
231 | taskBuilder.setChild((IOptionalInstance) instance, childInstance); |
---|
232 | } |
---|
233 | else { |
---|
234 | throw new IllegalArgumentException("can not add several children to one " + |
---|
235 | "optional instance"); |
---|
236 | } |
---|
237 | } |
---|
238 | } |
---|
239 | |
---|
240 | return instance; |
---|
241 | } |
---|
242 | |
---|
243 | /** |
---|
244 | * |
---|
245 | */ |
---|
246 | private ITask getCreateTask(String id, String type, List<ITaskInstance> children) { |
---|
247 | String effectiveId = id; |
---|
248 | ITask task = tasks.get(effectiveId); |
---|
249 | |
---|
250 | if (task == null) { |
---|
251 | if ("Sequence".equals(type)) { |
---|
252 | task = taskFactory.createNewSequence(); |
---|
253 | } |
---|
254 | else if ("Selection".equals(type)) { |
---|
255 | task = taskFactory.createNewSelection(); |
---|
256 | } |
---|
257 | else if ("Iteration".equals(type)) { |
---|
258 | task = taskFactory.createNewIteration(); |
---|
259 | } |
---|
260 | else if ("Optional".equals(type)) { |
---|
261 | task = taskFactory.createNewOptional(); |
---|
262 | } |
---|
263 | else { |
---|
264 | effectiveId = type + " --> " + id; |
---|
265 | task = tasks.get(effectiveId); |
---|
266 | |
---|
267 | if (task == null) { |
---|
268 | task = taskFactory.createNewEventTask(effectiveId); |
---|
269 | } |
---|
270 | } |
---|
271 | tasks.put(effectiveId, task); |
---|
272 | |
---|
273 | for (ITaskInstance childInstance : children) { |
---|
274 | if (task instanceof ISequence) { |
---|
275 | taskBuilder.addChild((ISequence) task, childInstance.getTask()); |
---|
276 | } |
---|
277 | else if (task instanceof ISelection) { |
---|
278 | taskBuilder.addChild((ISelection) task, childInstance.getTask()); |
---|
279 | } |
---|
280 | else if (task instanceof IIteration) { |
---|
281 | if (((IIteration) task).getMarkedTask() == null) { |
---|
282 | taskBuilder.setMarkedTask((IIteration) task, childInstance.getTask()); |
---|
283 | } |
---|
284 | else if (!((IIteration) task).getMarkedTask().equals(childInstance.getTask())) { |
---|
285 | throw new IllegalArgumentException |
---|
286 | ("can not add more than one child to an iteration"); |
---|
287 | } |
---|
288 | } |
---|
289 | else if (task instanceof IOptional) { |
---|
290 | if (((IOptional) task).getMarkedTask() == null) { |
---|
291 | taskBuilder.setMarkedTask((IOptional) task, childInstance.getTask()); |
---|
292 | } |
---|
293 | else if (!((IOptional) task).getMarkedTask().equals(childInstance.getTask())) { |
---|
294 | throw new IllegalArgumentException |
---|
295 | ("can not add more than one child to an optional"); |
---|
296 | } |
---|
297 | } |
---|
298 | else { |
---|
299 | throw new IllegalArgumentException("can not add children to something that " + |
---|
300 | "is no sequence, selection, iteration, or " + |
---|
301 | "optional"); |
---|
302 | } |
---|
303 | } |
---|
304 | } |
---|
305 | else if ("Selection".equals(type)) { |
---|
306 | // update the selection with further alternatives, if specified by the current |
---|
307 | // child instance |
---|
308 | if (children.size() == 1) { |
---|
309 | ITask newChildTask = children.get(0).getTask(); |
---|
310 | |
---|
311 | boolean found = false; |
---|
312 | for (ITask childTask : ((ISelection) task).getChildren()) { |
---|
313 | if (childTask.equals(newChildTask)) { |
---|
314 | found = true; |
---|
315 | break; |
---|
316 | } |
---|
317 | } |
---|
318 | |
---|
319 | if (!found) { |
---|
320 | taskBuilder.addChild((ISelection) task, newChildTask); |
---|
321 | } |
---|
322 | } |
---|
323 | } |
---|
324 | else if ("Optional".equals(type)) { |
---|
325 | // update the optional with what is optional if available |
---|
326 | if (children.size() == 1) { |
---|
327 | ITask newChildTask = children.get(0).getTask(); |
---|
328 | |
---|
329 | if (((IOptional) task).getMarkedTask() == null) { |
---|
330 | taskBuilder.setMarkedTask((IOptional) task, newChildTask); |
---|
331 | } |
---|
332 | else if (!((IOptional) task).getMarkedTask().equals(newChildTask)) { |
---|
333 | throw new IllegalArgumentException("all children of the same optional must " + |
---|
334 | "be of an identical task model."); |
---|
335 | } |
---|
336 | } |
---|
337 | } |
---|
338 | |
---|
339 | return task; |
---|
340 | } |
---|
341 | |
---|
342 | /** |
---|
343 | * <p> |
---|
344 | * </p> |
---|
345 | * |
---|
346 | * @param matcher |
---|
347 | * @return |
---|
348 | */ |
---|
349 | private Event createUserInteractionEvent(String type, String targetId, String furtherInfo) { |
---|
350 | IEventTarget eventTarget = targets.get(targetId); |
---|
351 | if (eventTarget == null) { |
---|
352 | eventTarget = new DummyGUIElement(targetId); |
---|
353 | targets.put(targetId, eventTarget); |
---|
354 | } |
---|
355 | |
---|
356 | IEventType eventType = determineType(type, furtherInfo); |
---|
357 | |
---|
358 | return new Event(eventType, eventTarget); |
---|
359 | } |
---|
360 | |
---|
361 | /** |
---|
362 | * <p> |
---|
363 | * </p> |
---|
364 | * |
---|
365 | * @param type |
---|
366 | * @param enteredText |
---|
367 | * @return |
---|
368 | */ |
---|
369 | private IEventType determineType(String type, String additionalInfo) { |
---|
370 | if ("TextInput".equals(type)) { |
---|
371 | return new TextInput(additionalInfo, new ArrayList<Event>()); |
---|
372 | } |
---|
373 | else if ("MouseClick".equals(type)) { |
---|
374 | return new MouseClick(MouseButtonInteraction.Button.LEFT, 5, 6); |
---|
375 | } |
---|
376 | else if ("Scroll".equals(type)) { |
---|
377 | int x = 0; |
---|
378 | int y = 0; |
---|
379 | if (additionalInfo != null) { |
---|
380 | String[] parts = additionalInfo.split(" "); |
---|
381 | if (parts.length > 0) { |
---|
382 | try { |
---|
383 | x = Integer.parseInt(parts[0]); |
---|
384 | } |
---|
385 | catch (NumberFormatException e) { |
---|
386 | throw new IllegalArgumentException("could not parse scroll coordinates", e); |
---|
387 | } |
---|
388 | } |
---|
389 | if (parts.length > 1) { |
---|
390 | try { |
---|
391 | y = Integer.parseInt(parts[1]); |
---|
392 | } |
---|
393 | catch (NumberFormatException e) { |
---|
394 | throw new IllegalArgumentException("could not parse scroll coordinates", e); |
---|
395 | } |
---|
396 | } |
---|
397 | } |
---|
398 | return new Scroll(x, y); |
---|
399 | } |
---|
400 | else { |
---|
401 | return new StringEventType(type); |
---|
402 | } |
---|
403 | } |
---|
404 | |
---|
405 | /** |
---|
406 | * |
---|
407 | */ |
---|
408 | private void correctTargets(ITaskInstanceList taskInstanceList) { |
---|
409 | Set<IEventTarget> textInputTargets = new HashSet<IEventTarget>(); |
---|
410 | |
---|
411 | for (ITaskInstance instance : taskInstanceList) { |
---|
412 | getTextInputTargets(instance, textInputTargets); |
---|
413 | } |
---|
414 | |
---|
415 | Map<IEventTarget, IEventTarget> replacements = new HashMap<IEventTarget, IEventTarget>(); |
---|
416 | |
---|
417 | for (IEventTarget oldTarget : textInputTargets) { |
---|
418 | replacements.put(oldTarget, new DummyTextField(oldTarget.toString())); |
---|
419 | } |
---|
420 | |
---|
421 | for (int i = 0; i < taskInstanceList.size(); i++) { |
---|
422 | taskBuilder.setTaskInstance |
---|
423 | (taskInstanceList, i, replaceTargets(taskInstanceList.get(i), replacements)); |
---|
424 | } |
---|
425 | |
---|
426 | } |
---|
427 | |
---|
428 | /** |
---|
429 | * |
---|
430 | */ |
---|
431 | private void getTextInputTargets(ITaskInstance instance, Set<IEventTarget> textInputTargets) { |
---|
432 | if (instance instanceof ISequenceInstance) { |
---|
433 | for (ITaskInstance child : (ISequenceInstance) instance) { |
---|
434 | getTextInputTargets(child, textInputTargets); |
---|
435 | } |
---|
436 | } |
---|
437 | else if (instance instanceof ISelectionInstance) { |
---|
438 | getTextInputTargets(((ISelectionInstance) instance).getChild(), textInputTargets); |
---|
439 | } |
---|
440 | else if (instance instanceof IIterationInstance) { |
---|
441 | for (ITaskInstance child : (IIterationInstance) instance) { |
---|
442 | getTextInputTargets(child, textInputTargets); |
---|
443 | } |
---|
444 | } |
---|
445 | else if (instance instanceof IOptionalInstance) { |
---|
446 | getTextInputTargets(((IOptionalInstance) instance).getChild(), textInputTargets); |
---|
447 | } |
---|
448 | else if ((instance instanceof IEventTaskInstance) && |
---|
449 | (((IEventTaskInstance) instance).getEvent().getType() instanceof TextInput)) |
---|
450 | { |
---|
451 | textInputTargets.add(((IEventTaskInstance) instance).getEvent().getTarget()); |
---|
452 | } |
---|
453 | } |
---|
454 | |
---|
455 | /** |
---|
456 | * |
---|
457 | */ |
---|
458 | private ITaskInstance replaceTargets(ITaskInstance instance, |
---|
459 | Map<IEventTarget, IEventTarget> replacements) |
---|
460 | { |
---|
461 | ITaskInstance replacement = instance; |
---|
462 | if (instance instanceof ITaskInstanceList) { |
---|
463 | for (int i = 0; i < ((ITaskInstanceList) instance).size(); i++) { |
---|
464 | taskBuilder.setTaskInstance |
---|
465 | ((ITaskInstanceList) instance, i, |
---|
466 | replaceTargets(((ITaskInstanceList) instance).get(i), replacements)); |
---|
467 | } |
---|
468 | } |
---|
469 | else if (instance instanceof ISelectionInstance) { |
---|
470 | ISelectionInstance selInst = (ISelectionInstance) instance; |
---|
471 | taskBuilder.setChild(selInst, replaceTargets(selInst.getChild(), replacements)); |
---|
472 | } |
---|
473 | else if (instance instanceof IOptionalInstance) { |
---|
474 | IOptionalInstance optInst = (IOptionalInstance) instance; |
---|
475 | if (optInst.getChild() != null) { |
---|
476 | taskBuilder.setChild(optInst, replaceTargets(optInst.getChild(), replacements)); |
---|
477 | } |
---|
478 | } |
---|
479 | else if ((instance instanceof IEventTaskInstance) && |
---|
480 | (replacements.containsKey(((IEventTaskInstance) instance).getEvent().getTarget()))) |
---|
481 | { |
---|
482 | Event origEvent = ((IEventTaskInstance) instance).getEvent(); |
---|
483 | replacement = taskFactory.createNewTaskInstance |
---|
484 | (((IEventTaskInstance) instance).getEventTask(), |
---|
485 | new Event(origEvent.getType(), replacements.get(origEvent.getTarget()))); |
---|
486 | |
---|
487 | taskBuilder.discardTaskInstance(instance); |
---|
488 | } |
---|
489 | |
---|
490 | return replacement; |
---|
491 | } |
---|
492 | |
---|
493 | } |
---|