Commit | Line | Data |
---|---|---|
8c8bf09f ASL |
1 | /******************************************************************************* |
2 | * Copyright (c) 2009, 2010 Ericsson | |
3 | * | |
4 | * All rights reserved. This program and the accompanying materials are | |
5 | * made available under the terms of the Eclipse Public License v1.0 which | |
6 | * accompanies this distribution, and is available at | |
7 | * http://www.eclipse.org/legal/epl-v10.html | |
8 | * | |
9 | * Contributors: | |
10 | * Francois Chouinard - Initial API and implementation | |
11 | *******************************************************************************/ | |
12 | ||
13 | package org.eclipse.linuxtools.tmf.experiment; | |
14 | ||
9f584e4c | 15 | import java.util.Collections; |
8c8bf09f ASL |
16 | import java.util.Vector; |
17 | ||
fc6ccf6f | 18 | import org.eclipse.linuxtools.tmf.component.TmfEventProvider; |
8c8bf09f ASL |
19 | import org.eclipse.linuxtools.tmf.event.TmfEvent; |
20 | import org.eclipse.linuxtools.tmf.event.TmfTimeRange; | |
21 | import org.eclipse.linuxtools.tmf.event.TmfTimestamp; | |
2fb2eb37 FC |
22 | import org.eclipse.linuxtools.tmf.request.ITmfDataRequest; |
23 | import org.eclipse.linuxtools.tmf.request.ITmfEventRequest; | |
550d787e FC |
24 | import org.eclipse.linuxtools.tmf.request.TmfDataRequest; |
25 | import org.eclipse.linuxtools.tmf.request.TmfEventRequest; | |
ff4ed569 FC |
26 | import org.eclipse.linuxtools.tmf.signal.TmfExperimentSelectedSignal; |
27 | import org.eclipse.linuxtools.tmf.signal.TmfExperimentUpdatedSignal; | |
8c8bf09f | 28 | import org.eclipse.linuxtools.tmf.signal.TmfSignalHandler; |
550d787e | 29 | import org.eclipse.linuxtools.tmf.signal.TmfSignalManager; |
ff4ed569 | 30 | import org.eclipse.linuxtools.tmf.signal.TmfTraceUpdatedSignal; |
9f584e4c FC |
31 | import org.eclipse.linuxtools.tmf.trace.ITmfContext; |
32 | import org.eclipse.linuxtools.tmf.trace.ITmfLocation; | |
8c8bf09f | 33 | import org.eclipse.linuxtools.tmf.trace.ITmfTrace; |
9f584e4c FC |
34 | import org.eclipse.linuxtools.tmf.trace.TmfCheckpoint; |
35 | import org.eclipse.linuxtools.tmf.trace.TmfContext; | |
8c8bf09f ASL |
36 | |
37 | /** | |
38 | * <b><u>TmfExperiment</u></b> | |
39 | * <p> | |
40 | * TmfExperiment presents a time-ordered, unified view of a set of TmfTraces | |
41 | * that are part of a tracing experiment. | |
42 | * <p> | |
43 | */ | |
fc6ccf6f | 44 | public class TmfExperiment<T extends TmfEvent> extends TmfEventProvider<T> implements ITmfTrace { |
8c8bf09f ASL |
45 | |
46 | // ------------------------------------------------------------------------ | |
47 | // Attributes | |
48 | // ------------------------------------------------------------------------ | |
49 | ||
50 | // The currently selected experiment | |
cbd4ad82 | 51 | private static TmfExperiment<?> fCurrentExperiment = null; |
e31e01e8 | 52 | |
550d787e | 53 | // The set of traces that constitute the experiment |
9f584e4c | 54 | private ITmfTrace[] fTraces; |
8c8bf09f ASL |
55 | |
56 | // The total number of events | |
9f584e4c | 57 | private long fNbEvents; |
8c8bf09f ASL |
58 | |
59 | // The experiment time range | |
60 | private TmfTimeRange fTimeRange; | |
61 | ||
62 | // The experiment reference timestamp (default: BigBang) | |
63 | private TmfTimestamp fEpoch; | |
64 | ||
9f584e4c FC |
65 | // The experiment index |
66 | private Vector<TmfCheckpoint> fCheckpoints = new Vector<TmfCheckpoint>(); | |
67 | ||
8c8bf09f ASL |
68 | // ------------------------------------------------------------------------ |
69 | // Constructors | |
70 | // ------------------------------------------------------------------------ | |
71 | ||
72 | /** | |
73 | * @param type | |
74 | * @param id | |
75 | * @param traces | |
76 | * @param epoch | |
77 | * @param indexPageSize | |
78 | */ | |
79 | public TmfExperiment(Class<T> type, String id, ITmfTrace[] traces, TmfTimestamp epoch, int indexPageSize) { | |
cb866e08 FC |
80 | this(type, id, traces, TmfTimestamp.Zero, DEFAULT_INDEX_PAGE_SIZE, false); |
81 | } | |
82 | ||
83 | public TmfExperiment(Class<T> type, String id, ITmfTrace[] traces, TmfTimestamp epoch, int indexPageSize, boolean waitForCompletion) { | |
ce785d7d | 84 | super(id, type); |
8c8bf09f | 85 | |
9f584e4c | 86 | fTraces = traces; |
8c8bf09f ASL |
87 | fEpoch = epoch; |
88 | fIndexPageSize = indexPageSize; | |
550d787e | 89 | fClone = createTraceCopy(); |
8c8bf09f | 90 | |
cb866e08 FC |
91 | if (waitForCompletion) indexExperiment(true); |
92 | ||
8c8bf09f | 93 | updateTimeRange(); |
550d787e | 94 | } |
8c8bf09f ASL |
95 | |
96 | /** | |
97 | * @param type | |
98 | * @param id | |
99 | * @param traces | |
100 | */ | |
101 | public TmfExperiment(Class<T> type, String id, ITmfTrace[] traces) { | |
102 | this(type, id, traces, TmfTimestamp.Zero, DEFAULT_INDEX_PAGE_SIZE); | |
103 | } | |
104 | ||
105 | /** | |
106 | * @param type | |
107 | * @param id | |
108 | * @param traces | |
109 | * @param indexPageSize | |
110 | */ | |
111 | public TmfExperiment(Class<T> type, String id, ITmfTrace[] traces, int indexPageSize) { | |
112 | this(type, id, traces, TmfTimestamp.Zero, indexPageSize); | |
113 | } | |
377f1ad8 | 114 | |
ce785d7d | 115 | public TmfExperiment(TmfExperiment<T> other) { |
550d787e | 116 | super(other.getName() + "(clone)", other.fType); |
377f1ad8 | 117 | |
ce785d7d FC |
118 | fEpoch = other.fEpoch; |
119 | fIndexPageSize = other.fIndexPageSize; | |
377f1ad8 | 120 | |
ce785d7d FC |
121 | fTraces = new ITmfTrace[other.fTraces.length]; |
122 | for (int trace = 0; trace < other.fTraces.length; trace++) { | |
123 | fTraces[trace] = other.fTraces[trace].createTraceCopy(); | |
377f1ad8 WB |
124 | } |
125 | ||
ce785d7d FC |
126 | fNbEvents = other.fNbEvents; |
127 | fTimeRange = other.fTimeRange; | |
550d787e | 128 | fClone = null; |
377f1ad8 WB |
129 | } |
130 | ||
131 | public TmfExperiment<T> createTraceCopy() { | |
550d787e FC |
132 | TmfExperiment<T> experiment = new TmfExperiment<T>(this); |
133 | TmfSignalManager.deregister(experiment); | |
134 | return experiment; | |
377f1ad8 WB |
135 | } |
136 | ||
8c8bf09f | 137 | /** |
ff4ed569 | 138 | * Clears the experiment |
8c8bf09f ASL |
139 | */ |
140 | @Override | |
2fb2eb37 | 141 | public void dispose() { |
550d787e FC |
142 | if (fTraces != null) { |
143 | for (ITmfTrace trace : fTraces) { | |
144 | trace.dispose(); | |
145 | } | |
146 | fTraces = null; | |
147 | } | |
148 | if (fCheckpoints != null) { | |
149 | fCheckpoints.clear(); | |
ff4ed569 | 150 | } |
2fb2eb37 | 151 | super.dispose(); |
8c8bf09f ASL |
152 | } |
153 | ||
cbd4ad82 FC |
154 | private static void setCurrentExperiment(TmfExperiment<?> experiment) { |
155 | fCurrentExperiment = experiment; | |
156 | } | |
157 | ||
9f584e4c | 158 | // ------------------------------------------------------------------------ |
cbd4ad82 | 159 | // ITmfTrace |
9f584e4c FC |
160 | // ------------------------------------------------------------------------ |
161 | ||
162 | public String getPath() { | |
163 | return null; | |
164 | } | |
165 | ||
9f584e4c FC |
166 | public long getNbEvents() { |
167 | return fNbEvents; | |
168 | } | |
169 | ||
54d55ced FC |
170 | public int getCacheSize() { |
171 | return fIndexPageSize; | |
172 | } | |
173 | ||
9f584e4c FC |
174 | public TmfTimeRange getTimeRange() { |
175 | return fTimeRange; | |
176 | } | |
177 | ||
178 | public TmfTimestamp getStartTime() { | |
179 | return fTimeRange.getStartTime(); | |
180 | } | |
181 | ||
182 | public TmfTimestamp getEndTime() { | |
183 | return fTimeRange.getEndTime(); | |
184 | } | |
185 | ||
54d55ced FC |
186 | public Vector<TmfCheckpoint> getCheckpoints() { |
187 | return fCheckpoints; | |
188 | } | |
189 | ||
8c8bf09f | 190 | // ------------------------------------------------------------------------ |
e31e01e8 | 191 | // Accessors |
8c8bf09f ASL |
192 | // ------------------------------------------------------------------------ |
193 | ||
e31e01e8 FC |
194 | public static TmfExperiment<?> getCurrentExperiment() { |
195 | return fCurrentExperiment; | |
8c8bf09f ASL |
196 | } |
197 | ||
8c8bf09f ASL |
198 | public TmfTimestamp getEpoch() { |
199 | return fEpoch; | |
200 | } | |
201 | ||
9f584e4c FC |
202 | public ITmfTrace[] getTraces() { |
203 | return fTraces; | |
8c8bf09f ASL |
204 | } |
205 | ||
206 | /** | |
207 | * Returns the rank of the first event with the requested timestamp. | |
208 | * If none, returns the index of the next event (if any). | |
209 | * | |
85fb0e54 | 210 | * @param timestamp |
8c8bf09f ASL |
211 | * @return |
212 | */ | |
85fb0e54 FC |
213 | public long getRank(TmfTimestamp timestamp) { |
214 | TmfExperimentContext context = seekEvent(timestamp); | |
8c8bf09f ASL |
215 | return context.getRank(); |
216 | } | |
217 | ||
218 | /** | |
219 | * Returns the timestamp of the event at the requested index. | |
220 | * If none, returns null. | |
221 | * | |
222 | * @param index | |
223 | * @return | |
224 | */ | |
225 | public TmfTimestamp getTimestamp(int index) { | |
85fb0e54 | 226 | TmfExperimentContext context = seekEvent(index); |
7f407ead | 227 | TmfEvent event = getNextEvent(context); |
85fb0e54 | 228 | return (event != null) ? event.getTimestamp() : null; |
8c8bf09f ASL |
229 | } |
230 | ||
231 | // ------------------------------------------------------------------------ | |
232 | // Operators | |
233 | // ------------------------------------------------------------------------ | |
234 | ||
235 | /** | |
236 | * Update the total number of events | |
237 | */ | |
238 | private void updateNbEvents() { | |
239 | int nbEvents = 0; | |
240 | for (ITmfTrace trace : fTraces) { | |
241 | nbEvents += trace.getNbEvents(); | |
242 | } | |
243 | fNbEvents = nbEvents; | |
244 | } | |
245 | ||
246 | /** | |
247 | * Update the global time range | |
248 | */ | |
249 | private void updateTimeRange() { | |
250 | TmfTimestamp startTime = fTimeRange != null ? fTimeRange.getStartTime() : TmfTimestamp.BigCrunch; | |
251 | TmfTimestamp endTime = fTimeRange != null ? fTimeRange.getEndTime() : TmfTimestamp.BigBang; | |
252 | ||
253 | for (ITmfTrace trace : fTraces) { | |
550d787e FC |
254 | TmfTimestamp traceStartTime = trace.getStartTime(); |
255 | if (traceStartTime.compareTo(startTime, true) < 0) | |
256 | startTime = traceStartTime; | |
257 | TmfTimestamp traceEndTime = trace.getEndTime(); | |
258 | if (traceEndTime.compareTo(endTime, true) > 0) | |
259 | endTime = traceEndTime; | |
8c8bf09f | 260 | } |
36548af3 | 261 | fTimeRange = new TmfTimeRange(startTime, endTime); |
8c8bf09f ASL |
262 | } |
263 | ||
264 | // ------------------------------------------------------------------------ | |
265 | // TmfProvider | |
266 | // ------------------------------------------------------------------------ | |
267 | ||
268 | @Override | |
2fb2eb37 | 269 | public ITmfContext armRequest(ITmfDataRequest<T> request) { |
2fb2eb37 FC |
270 | TmfTimestamp timestamp = (request instanceof ITmfEventRequest<?>) ? |
271 | ((ITmfEventRequest<T>) request).getRange().getStartTime() : null; | |
9f584e4c FC |
272 | TmfExperimentContext context = (timestamp != null) ? |
273 | seekEvent(timestamp) : seekEvent(request.getIndex()); | |
8c8bf09f ASL |
274 | return context; |
275 | } | |
276 | ||
277 | @SuppressWarnings("unchecked") | |
278 | @Override | |
279 | public T getNext(ITmfContext context) { | |
280 | if (context instanceof TmfExperimentContext) { | |
281 | return (T) getNextEvent((TmfExperimentContext) context); | |
282 | } | |
283 | return null; | |
284 | } | |
285 | ||
550d787e | 286 | // ------------------------------------------------------------------------ |
9f584e4c FC |
287 | // ITmfTrace trace positioning |
288 | // ------------------------------------------------------------------------ | |
289 | ||
290 | // Returns a brand new context based on the location provided | |
8f50c396 | 291 | // and initializes the event queues |
452ad365 | 292 | public TmfExperimentContext seekLocation(ITmfLocation<?> location) { |
8f50c396 FC |
293 | |
294 | // Validate the location | |
295 | if (location != null && !(location instanceof TmfExperimentLocation)) { | |
296 | return null; // Throw an exception? | |
9f584e4c | 297 | } |
8f50c396 FC |
298 | |
299 | // Instantiate the location | |
300 | TmfExperimentLocation expLocation = (location == null) | |
301 | ? new TmfExperimentLocation(new ITmfLocation<?>[fTraces.length], new long[fTraces.length]) | |
302 | : (TmfExperimentLocation) location.clone(); | |
303 | ||
304 | // Create and populate the context's traces contexts | |
305 | TmfExperimentContext context = new TmfExperimentContext(fTraces, new TmfContext[fTraces.length]); | |
306 | long rank = 0; | |
307 | for (int i = 0; i < fTraces.length; i++) { | |
308 | // Get the relevant trace attributes | |
309 | ITmfLocation<?> traceLocation = expLocation.getLocation()[i]; | |
310 | long traceRank = expLocation.getRanks()[i]; | |
311 | ||
312 | // Set the corresponding sub-context | |
313 | context.getContexts()[i] = fTraces[i].seekLocation(traceLocation); | |
314 | context.getContexts()[i].setRank(traceRank); | |
315 | rank += traceRank; | |
316 | ||
317 | // Set the trace location and read the corresponding event | |
318 | expLocation.getLocation()[i] = context.getContexts()[i].getLocation(); | |
319 | context.getEvents()[i] = fTraces[i].getNextEvent(context.getContexts()[i]); | |
320 | } | |
321 | ||
322 | // Finalize context | |
323 | context.setLocation(expLocation); | |
324 | context.setRank(rank); | |
325 | context.setLastTrace(TmfExperimentContext.NO_TRACE); | |
326 | return context; | |
9f584e4c FC |
327 | } |
328 | ||
54d55ced FC |
329 | /* (non-Javadoc) |
330 | * @see org.eclipse.linuxtools.tmf.trace.ITmfTrace#seekEvent(org.eclipse.linuxtools.tmf.event.TmfTimestamp) | |
331 | */ | |
9f584e4c | 332 | public TmfExperimentContext seekEvent(TmfTimestamp timestamp) { |
8c8bf09f | 333 | |
9f584e4c FC |
334 | if (timestamp == null) { |
335 | timestamp = TmfTimestamp.BigBang; | |
336 | } | |
337 | ||
338 | // First, find the right checkpoint | |
339 | int index = Collections.binarySearch(fCheckpoints, new TmfCheckpoint(timestamp, null)); | |
340 | ||
341 | // In the very likely case that the checkpoint was not found, bsearch | |
342 | // returns its negated would-be location (not an offset...). From that | |
343 | // index, we can then position the stream and get the event. | |
344 | if (index < 0) { | |
345 | index = Math.max(0, -(index + 2)); | |
346 | } | |
347 | ||
348 | // Position the experiment at the checkpoint | |
452ad365 | 349 | ITmfLocation<?> location; |
9f584e4c FC |
350 | synchronized (fCheckpoints) { |
351 | if (fCheckpoints.size() > 0) { | |
352 | if (index >= fCheckpoints.size()) { | |
353 | index = fCheckpoints.size() - 1; | |
354 | } | |
355 | location = fCheckpoints.elementAt(index).getLocation(); | |
356 | } | |
357 | else { | |
358 | location = null; | |
359 | } | |
360 | } | |
361 | ||
85fb0e54 | 362 | TmfExperimentContext context = seekLocation(location); |
cbd4ad82 | 363 | context.setRank((long) index * fIndexPageSize); |
9f584e4c | 364 | |
54d55ced FC |
365 | // And locate the event |
366 | TmfExperimentContext nextEventContext = new TmfExperimentContext(context); | |
367 | TmfEvent event = getNextEvent(nextEventContext); | |
9f584e4c | 368 | while (event != null && event.getTimestamp().compareTo(timestamp, false) < 0) { |
8f50c396 | 369 | context = new TmfExperimentContext(nextEventContext); |
54d55ced | 370 | event = getNextEvent(nextEventContext); |
9f584e4c | 371 | } |
8f50c396 | 372 | context.setLastTrace(TmfExperimentContext.NO_TRACE); |
9f584e4c | 373 | |
85fb0e54 | 374 | return context; |
9f584e4c | 375 | } |
8c8bf09f | 376 | |
54d55ced FC |
377 | /* (non-Javadoc) |
378 | * @see org.eclipse.linuxtools.tmf.trace.ITmfTrace#seekEvent(long) | |
379 | */ | |
9f584e4c FC |
380 | public TmfExperimentContext seekEvent(long rank) { |
381 | ||
54d55ced FC |
382 | // Position the stream at the previous checkpoint |
383 | int index = (int) rank / fIndexPageSize; | |
384 | ITmfLocation<?> location; | |
385 | synchronized (fCheckpoints) { | |
386 | if (fCheckpoints.size() == 0) { | |
387 | location = null; | |
388 | } | |
389 | else { | |
390 | if (index >= fCheckpoints.size()) { | |
391 | index = fCheckpoints.size() - 1; | |
392 | } | |
393 | location = fCheckpoints.elementAt(index).getLocation(); | |
394 | } | |
395 | } | |
e31e01e8 | 396 | |
54d55ced | 397 | TmfExperimentContext context = seekLocation(location); |
cbd4ad82 | 398 | long pos = (long) index * fIndexPageSize; |
54d55ced FC |
399 | context.setRank(pos); |
400 | ||
401 | // And locate the event | |
402 | TmfExperimentContext nextEventContext = new TmfExperimentContext(context); | |
403 | TmfEvent event = getNextEvent(nextEventContext); | |
404 | while (event != null && pos++ < rank) { | |
405 | event = getNextEvent(nextEventContext); | |
406 | context = new TmfExperimentContext(nextEventContext); | |
407 | if (event != null) context.updateRank(-1); | |
408 | } | |
8f50c396 | 409 | context.setLastTrace(TmfExperimentContext.NO_TRACE); |
9f584e4c | 410 | |
54d55ced | 411 | return context; |
8c8bf09f ASL |
412 | } |
413 | ||
414 | /** | |
415 | * Scan the next events from all traces and return the next one | |
416 | * in chronological order. | |
417 | * | |
418 | * @param context | |
419 | * @return | |
420 | */ | |
9f584e4c | 421 | public synchronized TmfEvent getNextEvent(TmfContext context) { |
54d55ced | 422 | |
8f50c396 FC |
423 | // Validate the context |
424 | if (!(context instanceof TmfExperimentContext)) { | |
425 | return null; // Throw an exception? | |
426 | } | |
54d55ced | 427 | |
8f50c396 FC |
428 | TmfExperimentContext expContext = (TmfExperimentContext) context; |
429 | ||
430 | // If an event was consumed previously, get the next one from that trace | |
431 | int lastTrace = expContext.getLastTrace(); | |
432 | if (lastTrace != TmfExperimentContext.NO_TRACE) { | |
433 | TmfContext traceContext = expContext.getContexts()[lastTrace]; | |
434 | expContext.getEvents()[lastTrace] = expContext.getTraces()[lastTrace].getNextEvent(traceContext); | |
435 | } | |
436 | ||
437 | // Scan the candidate events and identify the "next" trace to read from | |
438 | int trace = TmfExperimentContext.NO_TRACE; | |
439 | TmfTimestamp timestamp = TmfTimestamp.BigCrunch; | |
440 | for (int i = 0; i < expContext.getTraces().length; i++) { | |
441 | TmfEvent event = expContext.getEvents()[i]; | |
442 | if (event != null && event.getTimestamp() != null) { | |
443 | TmfTimestamp otherTS = event.getTimestamp(); | |
444 | if (otherTS.compareTo(timestamp, true) < 0) { | |
445 | trace = i; | |
446 | timestamp = otherTS; | |
8c8bf09f ASL |
447 | } |
448 | } | |
449 | } | |
8f50c396 FC |
450 | |
451 | // Update the experiment context and set the "next" event | |
452 | TmfEvent event = null; | |
453 | if (trace >= 0) { | |
550d787e | 454 | long savedRank = expContext.getRank(); |
cb866e08 | 455 | updateIndex(expContext, savedRank, timestamp); |
8f50c396 FC |
456 | expContext.setLastTrace(trace); |
457 | expContext.updateRank(1); | |
458 | TmfExperimentLocation expLocation = (TmfExperimentLocation) expContext.getLocation(); | |
459 | TmfContext traceContext = expContext.getContexts()[trace]; | |
460 | expLocation.getLocation()[trace] = traceContext.getLocation().clone(); | |
461 | expLocation.getRanks()[trace] = traceContext.getRank(); | |
462 | event = expContext.getEvents()[trace]; | |
cb866e08 | 463 | // updateIndex(expContext, savedRank, timestamp); |
8f50c396 FC |
464 | } |
465 | ||
466 | return event; | |
8c8bf09f ASL |
467 | } |
468 | ||
550d787e FC |
469 | public synchronized void updateIndex(ITmfContext context, long rank, TmfTimestamp timestamp) { |
470 | // Build the index as we go along | |
471 | if (context.isValidRank() && (rank % fIndexPageSize) == 0) { | |
472 | // Determine the table position | |
473 | long position = context.getRank() / fIndexPageSize; | |
474 | // Add new entry at proper location (if empty) | |
475 | if (fCheckpoints.size() == position) { | |
476 | ITmfLocation<?> location = context.getLocation().clone(); | |
477 | fCheckpoints.add(new TmfCheckpoint(timestamp, location)); | |
478 | // System.out.println(this + "[" + (fCheckpoints.size() - 1) + "] " + timestamp + ", " + location.toString()); | |
479 | } | |
480 | } | |
481 | } | |
482 | ||
54d55ced FC |
483 | /* (non-Javadoc) |
484 | * @see org.eclipse.linuxtools.tmf.trace.ITmfTrace#parseEvent(org.eclipse.linuxtools.tmf.trace.TmfContext) | |
485 | */ | |
9f584e4c | 486 | public TmfEvent parseEvent(TmfContext context) { |
54d55ced | 487 | |
85fb0e54 FC |
488 | if (context instanceof TmfExperimentContext) { |
489 | TmfExperimentContext expContext = (TmfExperimentContext) context; | |
54d55ced FC |
490 | int lastTrace = expContext.getLastTrace(); |
491 | if (lastTrace != -1) { | |
492 | TmfContext traceContext = expContext.getContexts()[lastTrace]; | |
8f50c396 | 493 | expContext.getEvents()[lastTrace] = expContext.getTraces()[lastTrace].getNextEvent(traceContext); |
54d55ced FC |
494 | expContext.updateRank(1); |
495 | TmfExperimentLocation expLocation = (TmfExperimentLocation) expContext.getLocation(); | |
496 | expLocation.getLocation()[lastTrace] = traceContext.getLocation().clone(); | |
497 | } | |
498 | ||
85fb0e54 FC |
499 | int trace = -1; |
500 | TmfTimestamp timestamp = TmfTimestamp.BigCrunch; | |
501 | for (int i = 0; i < expContext.getTraces().length; i++) { | |
502 | if (expContext.getEvents()[i] != null) { | |
503 | if (expContext.getEvents()[i].getTimestamp() != null) { | |
504 | TmfTimestamp otherTS = expContext.getEvents()[i].getTimestamp(); | |
505 | if (otherTS.compareTo(timestamp, true) < 0) { | |
506 | trace = i; | |
507 | timestamp = otherTS; | |
508 | } | |
509 | } | |
510 | } | |
511 | } | |
512 | if (trace >= 0) { | |
8f50c396 | 513 | expContext.setLastTrace(TmfExperimentContext.NO_TRACE); |
85fb0e54 FC |
514 | return expContext.getEvents()[trace]; |
515 | } | |
516 | } | |
54d55ced FC |
517 | |
518 | return null; | |
8c8bf09f ASL |
519 | } |
520 | ||
521 | /* (non-Javadoc) | |
522 | * @see java.lang.Object#toString() | |
523 | */ | |
524 | @Override | |
525 | public String toString() { | |
ce785d7d | 526 | return "[TmfExperiment (" + getName() + ")]"; |
8c8bf09f ASL |
527 | } |
528 | ||
529 | // ------------------------------------------------------------------------ | |
530 | // Indexing | |
531 | // ------------------------------------------------------------------------ | |
532 | ||
533 | /* | |
534 | * The experiment holds the globally ordered events of its set of traces. | |
535 | * It is expected to provide access to each individual event by index i.e. | |
9f584e4c | 536 | * it must be possible to request the Nth event of the experiment. |
8c8bf09f ASL |
537 | * |
538 | * The purpose of the index is to keep the information needed to rapidly | |
539 | * restore the traces contexts at regular intervals (every INDEX_PAGE_SIZE | |
540 | * event). | |
541 | */ | |
542 | ||
543 | // The index page size | |
544 | private static final int DEFAULT_INDEX_PAGE_SIZE = 1000; | |
550d787e | 545 | private final int fIndexPageSize; |
e31e01e8 | 546 | |
550d787e | 547 | @SuppressWarnings("unchecked") |
cb866e08 | 548 | private void indexExperiment(boolean waitForCompletion) { |
550d787e | 549 | |
cb866e08 | 550 | // final TmfExperiment<?> experiment = getCurrentExperiment(); |
550d787e FC |
551 | fCheckpoints.clear(); |
552 | ||
553 | ITmfEventRequest<TmfEvent> request = new TmfEventRequest<TmfEvent>(TmfEvent.class, TmfTimeRange.Eternity, TmfDataRequest.ALL_DATA, 1, ITmfDataRequest.ExecutionType.LONG) { | |
554 | ||
cb866e08 | 555 | // long indexingStart = System.nanoTime(); |
550d787e FC |
556 | |
557 | TmfTimestamp startTime = null; | |
558 | TmfTimestamp lastTime = null; | |
cb866e08 | 559 | // int nbEvents = 0; |
550d787e FC |
560 | |
561 | @Override | |
562 | public void handleData() { | |
563 | TmfEvent[] events = getData(); | |
564 | if (events.length > 0) { | |
cb866e08 | 565 | // nbEvents++; |
550d787e FC |
566 | TmfTimestamp ts = events[0].getTimestamp(); |
567 | if (startTime == null) | |
568 | startTime = new TmfTimestamp(ts); | |
569 | lastTime = new TmfTimestamp(ts); | |
570 | ||
cb866e08 | 571 | if ((fNbRead % DEFAULT_INDEX_PAGE_SIZE) == 0) { |
550d787e FC |
572 | updateExperiment(); |
573 | } | |
574 | } | |
9aae0442 | 575 | } |
e31e01e8 | 576 | |
550d787e FC |
577 | @Override |
578 | public void handleSuccess() { | |
cb866e08 FC |
579 | // long indexingEnd = System.nanoTime(); |
580 | ||
581 | updateExperiment(); | |
582 | ||
583 | // System.out.println(getName() + ": start=" + startTime + ", end=" + lastTime + ", elapsed=" + (indexingEnd*1.0 - indexingStart) / 1000000000); | |
584 | // System.out.println(getName() + ": nbEvents=" + fNbEvents + "(" + ((indexingEnd-indexingStart)/nbEvents)+ " ns/evt)"); | |
585 | ||
586 | // for (int i = 0; i < fCheckpoints.size(); i++) { | |
587 | // TmfCheckpoint checkpoint = fCheckpoints.get(i); | |
588 | // System.out.println("fCheckpoints[" + i + "] " + checkpoint.getTimestamp() + ", " + checkpoint.getLocation().toString()); | |
589 | // } | |
e31e01e8 FC |
590 | } |
591 | ||
550d787e | 592 | private void updateExperiment() { |
cb866e08 FC |
593 | // if (experiment == fCurrentExperiment) { |
594 | // experiment.fTimeRange = new TmfTimeRange(startTime, new TmfTimestamp(lastTime)); | |
595 | // experiment.fNbEvents = nbEvents; | |
596 | // experiment.fCheckpoints = ((TmfExperiment<T>) fClone).fCheckpoints; | |
597 | // notifyListeners(); | |
598 | // } | |
599 | ||
600 | fTimeRange = new TmfTimeRange(startTime, new TmfTimestamp(lastTime)); | |
601 | fNbEvents = fNbRead; | |
602 | fCheckpoints = ((TmfExperiment<T>) fClone).fCheckpoints; | |
603 | notifyListeners(); | |
550d787e FC |
604 | } |
605 | }; | |
e31e01e8 | 606 | |
550d787e | 607 | sendRequest((ITmfDataRequest<T>) request); |
cb866e08 FC |
608 | if (waitForCompletion) |
609 | try { | |
610 | request.waitForCompletion(); | |
611 | } catch (InterruptedException e) { | |
612 | e.printStackTrace(); | |
613 | } | |
550d787e FC |
614 | } |
615 | ||
616 | protected void notifyListeners() { | |
617 | broadcast(new TmfExperimentUpdatedSignal(this, this, null)); | |
9f584e4c FC |
618 | } |
619 | ||
8c8bf09f ASL |
620 | // ------------------------------------------------------------------------ |
621 | // Signal handlers | |
622 | // ------------------------------------------------------------------------ | |
623 | ||
624 | @TmfSignalHandler | |
951d134a | 625 | public void experimentSelected(TmfExperimentSelectedSignal<T> signal) { |
ff4ed569 FC |
626 | TmfExperiment<?> experiment = signal.getExperiment(); |
627 | if (experiment == this) { | |
628 | setCurrentExperiment(experiment); | |
cb866e08 | 629 | indexExperiment(false); |
ff4ed569 FC |
630 | } |
631 | else { | |
632 | dispose(); | |
633 | } | |
8c8bf09f ASL |
634 | } |
635 | ||
636 | @TmfSignalHandler | |
637 | public void experimentUpdated(TmfExperimentUpdatedSignal signal) { | |
8c8bf09f ASL |
638 | } |
639 | ||
640 | @TmfSignalHandler | |
641 | public void traceUpdated(TmfTraceUpdatedSignal signal) { | |
642 | // TODO: Incremental index update | |
643 | synchronized(this) { | |
644 | updateNbEvents(); | |
645 | updateTimeRange(); | |
646 | } | |
647 | broadcast(new TmfExperimentUpdatedSignal(this, this, signal.getTrace())); | |
648 | } | |
649 | ||
cb866e08 FC |
650 | @Override |
651 | public void queueResult(T data) throws InterruptedException { | |
652 | super.queueResult(data); | |
653 | } | |
654 | ||
8c8bf09f | 655 | } |