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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 | 22 | import org.eclipse.linuxtools.tmf.request.ITmfDataRequest; |
f6b14ce2 | 23 | import org.eclipse.linuxtools.tmf.request.ITmfDataRequest.ExecutionType; |
2fb2eb37 | 24 | import org.eclipse.linuxtools.tmf.request.ITmfEventRequest; |
550d787e FC |
25 | import org.eclipse.linuxtools.tmf.request.TmfDataRequest; |
26 | import org.eclipse.linuxtools.tmf.request.TmfEventRequest; | |
ff4ed569 FC |
27 | import org.eclipse.linuxtools.tmf.signal.TmfExperimentSelectedSignal; |
28 | import org.eclipse.linuxtools.tmf.signal.TmfExperimentUpdatedSignal; | |
8c8bf09f | 29 | import org.eclipse.linuxtools.tmf.signal.TmfSignalHandler; |
550d787e | 30 | import org.eclipse.linuxtools.tmf.signal.TmfSignalManager; |
ff4ed569 | 31 | import org.eclipse.linuxtools.tmf.signal.TmfTraceUpdatedSignal; |
9f584e4c FC |
32 | import org.eclipse.linuxtools.tmf.trace.ITmfContext; |
33 | import org.eclipse.linuxtools.tmf.trace.ITmfLocation; | |
8c8bf09f | 34 | import org.eclipse.linuxtools.tmf.trace.ITmfTrace; |
9f584e4c FC |
35 | import org.eclipse.linuxtools.tmf.trace.TmfCheckpoint; |
36 | import org.eclipse.linuxtools.tmf.trace.TmfContext; | |
8c8bf09f ASL |
37 | |
38 | /** | |
39 | * <b><u>TmfExperiment</u></b> | |
40 | * <p> | |
41 | * TmfExperiment presents a time-ordered, unified view of a set of TmfTraces | |
9b635e61 | 42 | * that are part of a tracing experiment. |
8c8bf09f ASL |
43 | * <p> |
44 | */ | |
fc6ccf6f | 45 | public class TmfExperiment<T extends TmfEvent> extends TmfEventProvider<T> implements ITmfTrace { |
8c8bf09f ASL |
46 | |
47 | // ------------------------------------------------------------------------ | |
48 | // Attributes | |
49 | // ------------------------------------------------------------------------ | |
50 | ||
51 | // The currently selected experiment | |
82e04272 | 52 | protected static TmfExperiment<?> fCurrentExperiment = null; |
e31e01e8 | 53 | |
550d787e | 54 | // The set of traces that constitute the experiment |
82e04272 | 55 | protected ITmfTrace[] fTraces; |
8c8bf09f ASL |
56 | |
57 | // The total number of events | |
82e04272 | 58 | protected long fNbEvents; |
8c8bf09f ASL |
59 | |
60 | // The experiment time range | |
82e04272 | 61 | protected TmfTimeRange fTimeRange; |
8c8bf09f | 62 | |
9b635e61 | 63 | // The experiment reference timestamp (default: Zero) |
82e04272 | 64 | protected TmfTimestamp fEpoch; |
8c8bf09f | 65 | |
9f584e4c | 66 | // The experiment index |
82e04272 | 67 | protected Vector<TmfCheckpoint> fCheckpoints = new Vector<TmfCheckpoint>(); |
9f584e4c | 68 | |
f6b14ce2 FC |
69 | // The current experiment context |
70 | protected TmfExperimentContext fExperimentContext; | |
9b635e61 | 71 | |
8c8bf09f ASL |
72 | // ------------------------------------------------------------------------ |
73 | // Constructors | |
74 | // ------------------------------------------------------------------------ | |
75 | ||
76 | /** | |
77 | * @param type | |
78 | * @param id | |
79 | * @param traces | |
80 | * @param epoch | |
81 | * @param indexPageSize | |
82 | */ | |
83 | public TmfExperiment(Class<T> type, String id, ITmfTrace[] traces, TmfTimestamp epoch, int indexPageSize) { | |
045df77d | 84 | this(type, id, traces, TmfTimestamp.Zero, indexPageSize, false); |
cb866e08 FC |
85 | } |
86 | ||
9b635e61 | 87 | public TmfExperiment(Class<T> type, String id, ITmfTrace[] traces, TmfTimestamp epoch, int indexPageSize, boolean preIndexExperiment) { |
ce785d7d | 88 | super(id, type); |
8c8bf09f | 89 | |
9f584e4c | 90 | fTraces = traces; |
8c8bf09f ASL |
91 | fEpoch = epoch; |
92 | fIndexPageSize = indexPageSize; | |
93 | ||
9b635e61 | 94 | if (preIndexExperiment) indexExperiment(true); |
cb866e08 | 95 | |
8c8bf09f | 96 | updateTimeRange(); |
550d787e | 97 | } |
8c8bf09f | 98 | |
82e04272 FC |
99 | protected TmfExperiment(String id, Class<T> type) { |
100 | super(id, type); | |
101 | } | |
102 | ||
8c8bf09f ASL |
103 | /** |
104 | * @param type | |
105 | * @param id | |
106 | * @param traces | |
107 | */ | |
108 | public TmfExperiment(Class<T> type, String id, ITmfTrace[] traces) { | |
109 | this(type, id, traces, TmfTimestamp.Zero, DEFAULT_INDEX_PAGE_SIZE); | |
110 | } | |
111 | ||
112 | /** | |
113 | * @param type | |
114 | * @param id | |
115 | * @param traces | |
116 | * @param indexPageSize | |
117 | */ | |
118 | public TmfExperiment(Class<T> type, String id, ITmfTrace[] traces, int indexPageSize) { | |
119 | this(type, id, traces, TmfTimestamp.Zero, indexPageSize); | |
120 | } | |
377f1ad8 | 121 | |
f6b14ce2 FC |
122 | /** |
123 | * Copy constructor | |
124 | * @param other | |
125 | */ | |
ce785d7d | 126 | public TmfExperiment(TmfExperiment<T> other) { |
550d787e | 127 | super(other.getName() + "(clone)", other.fType); |
377f1ad8 | 128 | |
ce785d7d FC |
129 | fEpoch = other.fEpoch; |
130 | fIndexPageSize = other.fIndexPageSize; | |
377f1ad8 | 131 | |
ce785d7d FC |
132 | fTraces = new ITmfTrace[other.fTraces.length]; |
133 | for (int trace = 0; trace < other.fTraces.length; trace++) { | |
134 | fTraces[trace] = other.fTraces[trace].createTraceCopy(); | |
377f1ad8 WB |
135 | } |
136 | ||
ce785d7d FC |
137 | fNbEvents = other.fNbEvents; |
138 | fTimeRange = other.fTimeRange; | |
377f1ad8 WB |
139 | } |
140 | ||
141 | public TmfExperiment<T> createTraceCopy() { | |
550d787e FC |
142 | TmfExperiment<T> experiment = new TmfExperiment<T>(this); |
143 | TmfSignalManager.deregister(experiment); | |
144 | return experiment; | |
377f1ad8 WB |
145 | } |
146 | ||
8c8bf09f | 147 | /** |
ff4ed569 | 148 | * Clears the experiment |
8c8bf09f ASL |
149 | */ |
150 | @Override | |
db1ea19b | 151 | public synchronized void dispose() { |
550d787e FC |
152 | if (fTraces != null) { |
153 | for (ITmfTrace trace : fTraces) { | |
154 | trace.dispose(); | |
155 | } | |
156 | fTraces = null; | |
157 | } | |
158 | if (fCheckpoints != null) { | |
159 | fCheckpoints.clear(); | |
ff4ed569 | 160 | } |
2fb2eb37 | 161 | super.dispose(); |
8c8bf09f ASL |
162 | } |
163 | ||
9f584e4c | 164 | // ------------------------------------------------------------------------ |
cbd4ad82 | 165 | // ITmfTrace |
9f584e4c FC |
166 | // ------------------------------------------------------------------------ |
167 | ||
168 | public String getPath() { | |
169 | return null; | |
170 | } | |
171 | ||
9f584e4c FC |
172 | public long getNbEvents() { |
173 | return fNbEvents; | |
174 | } | |
175 | ||
54d55ced FC |
176 | public int getCacheSize() { |
177 | return fIndexPageSize; | |
178 | } | |
179 | ||
9f584e4c FC |
180 | public TmfTimeRange getTimeRange() { |
181 | return fTimeRange; | |
182 | } | |
183 | ||
184 | public TmfTimestamp getStartTime() { | |
185 | return fTimeRange.getStartTime(); | |
186 | } | |
187 | ||
188 | public TmfTimestamp getEndTime() { | |
189 | return fTimeRange.getEndTime(); | |
190 | } | |
191 | ||
54d55ced FC |
192 | public Vector<TmfCheckpoint> getCheckpoints() { |
193 | return fCheckpoints; | |
194 | } | |
195 | ||
8c8bf09f | 196 | // ------------------------------------------------------------------------ |
e31e01e8 | 197 | // Accessors |
8c8bf09f ASL |
198 | // ------------------------------------------------------------------------ |
199 | ||
f6b14ce2 FC |
200 | private static void setCurrentExperiment(TmfExperiment<?> experiment) { |
201 | fCurrentExperiment = experiment; | |
202 | } | |
203 | ||
e31e01e8 FC |
204 | public static TmfExperiment<?> getCurrentExperiment() { |
205 | return fCurrentExperiment; | |
8c8bf09f ASL |
206 | } |
207 | ||
8c8bf09f ASL |
208 | public TmfTimestamp getEpoch() { |
209 | return fEpoch; | |
210 | } | |
211 | ||
9f584e4c FC |
212 | public ITmfTrace[] getTraces() { |
213 | return fTraces; | |
8c8bf09f ASL |
214 | } |
215 | ||
216 | /** | |
217 | * Returns the rank of the first event with the requested timestamp. | |
218 | * If none, returns the index of the next event (if any). | |
219 | * | |
85fb0e54 | 220 | * @param timestamp |
8c8bf09f ASL |
221 | * @return |
222 | */ | |
85fb0e54 FC |
223 | public long getRank(TmfTimestamp timestamp) { |
224 | TmfExperimentContext context = seekEvent(timestamp); | |
8c8bf09f ASL |
225 | return context.getRank(); |
226 | } | |
227 | ||
228 | /** | |
229 | * Returns the timestamp of the event at the requested index. | |
230 | * If none, returns null. | |
231 | * | |
232 | * @param index | |
233 | * @return | |
234 | */ | |
235 | public TmfTimestamp getTimestamp(int index) { | |
85fb0e54 | 236 | TmfExperimentContext context = seekEvent(index); |
7f407ead | 237 | TmfEvent event = getNextEvent(context); |
85fb0e54 | 238 | return (event != null) ? event.getTimestamp() : null; |
8c8bf09f ASL |
239 | } |
240 | ||
241 | // ------------------------------------------------------------------------ | |
242 | // Operators | |
243 | // ------------------------------------------------------------------------ | |
244 | ||
245 | /** | |
246 | * Update the total number of events | |
247 | */ | |
248 | private void updateNbEvents() { | |
249 | int nbEvents = 0; | |
250 | for (ITmfTrace trace : fTraces) { | |
251 | nbEvents += trace.getNbEvents(); | |
252 | } | |
253 | fNbEvents = nbEvents; | |
254 | } | |
255 | ||
256 | /** | |
257 | * Update the global time range | |
258 | */ | |
259 | private void updateTimeRange() { | |
260 | TmfTimestamp startTime = fTimeRange != null ? fTimeRange.getStartTime() : TmfTimestamp.BigCrunch; | |
261 | TmfTimestamp endTime = fTimeRange != null ? fTimeRange.getEndTime() : TmfTimestamp.BigBang; | |
262 | ||
263 | for (ITmfTrace trace : fTraces) { | |
550d787e FC |
264 | TmfTimestamp traceStartTime = trace.getStartTime(); |
265 | if (traceStartTime.compareTo(startTime, true) < 0) | |
266 | startTime = traceStartTime; | |
267 | TmfTimestamp traceEndTime = trace.getEndTime(); | |
268 | if (traceEndTime.compareTo(endTime, true) > 0) | |
269 | endTime = traceEndTime; | |
8c8bf09f | 270 | } |
36548af3 | 271 | fTimeRange = new TmfTimeRange(startTime, endTime); |
8c8bf09f ASL |
272 | } |
273 | ||
274 | // ------------------------------------------------------------------------ | |
275 | // TmfProvider | |
276 | // ------------------------------------------------------------------------ | |
277 | ||
278 | @Override | |
2fb2eb37 | 279 | public ITmfContext armRequest(ITmfDataRequest<T> request) { |
9b635e61 | 280 | // Tracer.trace("Ctx: Arming request - start"); |
2fb2eb37 | 281 | TmfTimestamp timestamp = (request instanceof ITmfEventRequest<?>) ? |
9b635e61 | 282 | ((ITmfEventRequest<T>) request).getRange().getStartTime() : null; |
9f584e4c FC |
283 | TmfExperimentContext context = (timestamp != null) ? |
284 | seekEvent(timestamp) : seekEvent(request.getIndex()); | |
9b635e61 | 285 | // Tracer.trace("Ctx: Arming request - done"); |
8c8bf09f ASL |
286 | return context; |
287 | } | |
288 | ||
289 | @SuppressWarnings("unchecked") | |
290 | @Override | |
291 | public T getNext(ITmfContext context) { | |
292 | if (context instanceof TmfExperimentContext) { | |
293 | return (T) getNextEvent((TmfExperimentContext) context); | |
294 | } | |
295 | return null; | |
296 | } | |
297 | ||
550d787e | 298 | // ------------------------------------------------------------------------ |
9f584e4c FC |
299 | // ITmfTrace trace positioning |
300 | // ------------------------------------------------------------------------ | |
301 | ||
302 | // Returns a brand new context based on the location provided | |
8f50c396 | 303 | // and initializes the event queues |
9b635e61 | 304 | public synchronized TmfExperimentContext seekLocation(ITmfLocation<?> location) { |
8f50c396 FC |
305 | |
306 | // Validate the location | |
307 | if (location != null && !(location instanceof TmfExperimentLocation)) { | |
308 | return null; // Throw an exception? | |
9f584e4c | 309 | } |
8f50c396 FC |
310 | |
311 | // Instantiate the location | |
312 | TmfExperimentLocation expLocation = (location == null) | |
313 | ? new TmfExperimentLocation(new ITmfLocation<?>[fTraces.length], new long[fTraces.length]) | |
314 | : (TmfExperimentLocation) location.clone(); | |
315 | ||
316 | // Create and populate the context's traces contexts | |
317 | TmfExperimentContext context = new TmfExperimentContext(fTraces, new TmfContext[fTraces.length]); | |
9b635e61 FC |
318 | // Tracer.trace("Ctx: SeekLocation - start"); |
319 | ||
8f50c396 FC |
320 | long rank = 0; |
321 | for (int i = 0; i < fTraces.length; i++) { | |
322 | // Get the relevant trace attributes | |
323 | ITmfLocation<?> traceLocation = expLocation.getLocation()[i]; | |
324 | long traceRank = expLocation.getRanks()[i]; | |
325 | ||
326 | // Set the corresponding sub-context | |
327 | context.getContexts()[i] = fTraces[i].seekLocation(traceLocation); | |
328 | context.getContexts()[i].setRank(traceRank); | |
329 | rank += traceRank; | |
330 | ||
331 | // Set the trace location and read the corresponding event | |
332 | expLocation.getLocation()[i] = context.getContexts()[i].getLocation(); | |
fa867360 | 333 | context.getEvents()[i] = fTraces[i].getNextEvent(context.getContexts()[i]); |
8f50c396 FC |
334 | } |
335 | ||
9b635e61 FC |
336 | // Tracer.trace("Ctx: SeekLocation - done"); |
337 | ||
8f50c396 FC |
338 | // Finalize context |
339 | context.setLocation(expLocation); | |
8f50c396 | 340 | context.setLastTrace(TmfExperimentContext.NO_TRACE); |
9b635e61 FC |
341 | context.setRank(rank); |
342 | ||
f6b14ce2 | 343 | fExperimentContext = context; |
9b635e61 | 344 | |
8f50c396 | 345 | return context; |
9f584e4c FC |
346 | } |
347 | ||
54d55ced FC |
348 | /* (non-Javadoc) |
349 | * @see org.eclipse.linuxtools.tmf.trace.ITmfTrace#seekEvent(org.eclipse.linuxtools.tmf.event.TmfTimestamp) | |
350 | */ | |
9b635e61 FC |
351 | public synchronized TmfExperimentContext seekEvent(TmfTimestamp timestamp) { |
352 | ||
353 | // Tracer.trace("Ctx: seekEvent(TS) - start"); | |
8c8bf09f | 354 | |
9f584e4c FC |
355 | if (timestamp == null) { |
356 | timestamp = TmfTimestamp.BigBang; | |
357 | } | |
358 | ||
359 | // First, find the right checkpoint | |
360 | int index = Collections.binarySearch(fCheckpoints, new TmfCheckpoint(timestamp, null)); | |
361 | ||
362 | // In the very likely case that the checkpoint was not found, bsearch | |
363 | // returns its negated would-be location (not an offset...). From that | |
364 | // index, we can then position the stream and get the event. | |
365 | if (index < 0) { | |
366 | index = Math.max(0, -(index + 2)); | |
367 | } | |
368 | ||
369 | // Position the experiment at the checkpoint | |
452ad365 | 370 | ITmfLocation<?> location; |
9f584e4c FC |
371 | synchronized (fCheckpoints) { |
372 | if (fCheckpoints.size() > 0) { | |
373 | if (index >= fCheckpoints.size()) { | |
374 | index = fCheckpoints.size() - 1; | |
375 | } | |
376 | location = fCheckpoints.elementAt(index).getLocation(); | |
377 | } | |
378 | else { | |
379 | location = null; | |
380 | } | |
381 | } | |
382 | ||
85fb0e54 | 383 | TmfExperimentContext context = seekLocation(location); |
cbd4ad82 | 384 | context.setRank((long) index * fIndexPageSize); |
9f584e4c | 385 | |
9b635e61 | 386 | // And locate the event |
fa867360 | 387 | TmfEvent event = parseEvent(context); |
9f584e4c | 388 | while (event != null && event.getTimestamp().compareTo(timestamp, false) < 0) { |
fa867360 FC |
389 | getNextEvent(context); |
390 | event = parseEvent(context); | |
9f584e4c FC |
391 | } |
392 | ||
f6b14ce2 | 393 | if (event == null) { |
fa867360 FC |
394 | context.setLocation(null); |
395 | context.setRank(ITmfContext.UNKNOWN_RANK); | |
9b635e61 | 396 | } |
f6b14ce2 FC |
397 | |
398 | return context; | |
9f584e4c | 399 | } |
8c8bf09f | 400 | |
54d55ced FC |
401 | /* (non-Javadoc) |
402 | * @see org.eclipse.linuxtools.tmf.trace.ITmfTrace#seekEvent(long) | |
403 | */ | |
9b635e61 FC |
404 | public synchronized TmfExperimentContext seekEvent(long rank) { |
405 | ||
406 | // Tracer.trace("Ctx: seekEvent(rank) - start"); | |
9f584e4c | 407 | |
54d55ced FC |
408 | // Position the stream at the previous checkpoint |
409 | int index = (int) rank / fIndexPageSize; | |
410 | ITmfLocation<?> location; | |
411 | synchronized (fCheckpoints) { | |
412 | if (fCheckpoints.size() == 0) { | |
413 | location = null; | |
414 | } | |
415 | else { | |
416 | if (index >= fCheckpoints.size()) { | |
417 | index = fCheckpoints.size() - 1; | |
418 | } | |
419 | location = fCheckpoints.elementAt(index).getLocation(); | |
420 | } | |
421 | } | |
e31e01e8 | 422 | |
54d55ced | 423 | TmfExperimentContext context = seekLocation(location); |
9b635e61 | 424 | context.setRank((long) index * fIndexPageSize); |
54d55ced | 425 | |
9b635e61 | 426 | // And locate the event |
fa867360 | 427 | TmfEvent event = parseEvent(context); |
9b635e61 | 428 | long pos = context.getRank(); |
fa867360 FC |
429 | while (event != null && pos++ < rank) { |
430 | getNextEvent(context); | |
431 | event = parseEvent(context); | |
54d55ced | 432 | } |
9f584e4c | 433 | |
f6b14ce2 | 434 | if (event == null) { |
fa867360 FC |
435 | context.setLocation(null); |
436 | context.setRank(ITmfContext.UNKNOWN_RANK); | |
9b635e61 | 437 | } |
f6b14ce2 | 438 | |
fa867360 | 439 | return context; |
8c8bf09f ASL |
440 | } |
441 | ||
442 | /** | |
443 | * Scan the next events from all traces and return the next one | |
444 | * in chronological order. | |
445 | * | |
446 | * @param context | |
447 | * @return | |
448 | */ | |
9b635e61 FC |
449 | |
450 | // private void dumpContext(TmfExperimentContext context, boolean isBefore) { | |
451 | ||
452 | // TmfContext context0 = context.getContexts()[0]; | |
453 | // TmfEvent event0 = context.getEvents()[0]; | |
454 | // TmfExperimentLocation location0 = (TmfExperimentLocation) context.getLocation(); | |
455 | // long rank0 = context.getRank(); | |
456 | // int trace = context.getLastTrace(); | |
457 | // | |
458 | // StringBuffer result = new StringBuffer("Ctx: " + (isBefore ? "B " : "A ")); | |
459 | // | |
460 | // result.append("[Ctx: fLoc= " + context0.getLocation().toString() + ", fRnk= " + context0.getRank() + "] "); | |
461 | // result.append("[Evt: " + event0.getTimestamp().toString() + "] "); | |
462 | // result.append("[Loc: fLoc= " + location0.getLocation()[0].toString() + ", fRnk= " + location0.getRanks()[0] + "] "); | |
463 | // result.append("[Rnk: " + rank0 + "], [Trc: " + trace + "]"); | |
464 | // Tracer.trace(result.toString()); | |
465 | // } | |
466 | ||
9f584e4c | 467 | public synchronized TmfEvent getNextEvent(TmfContext context) { |
54d55ced | 468 | |
8f50c396 FC |
469 | // Validate the context |
470 | if (!(context instanceof TmfExperimentContext)) { | |
471 | return null; // Throw an exception? | |
472 | } | |
54d55ced | 473 | |
f6b14ce2 | 474 | if (!context.equals(fExperimentContext)) { |
9b635e61 FC |
475 | // Tracer.trace("Ctx: Restoring context"); |
476 | seekLocation(context.getLocation()); | |
477 | } | |
478 | ||
8f50c396 FC |
479 | TmfExperimentContext expContext = (TmfExperimentContext) context; |
480 | ||
9b635e61 FC |
481 | // dumpContext(expContext, true); |
482 | ||
8f50c396 FC |
483 | // If an event was consumed previously, get the next one from that trace |
484 | int lastTrace = expContext.getLastTrace(); | |
485 | if (lastTrace != TmfExperimentContext.NO_TRACE) { | |
486 | TmfContext traceContext = expContext.getContexts()[lastTrace]; | |
487 | expContext.getEvents()[lastTrace] = expContext.getTraces()[lastTrace].getNextEvent(traceContext); | |
fa867360 | 488 | expContext.setLastTrace(TmfExperimentContext.NO_TRACE); |
8f50c396 FC |
489 | } |
490 | ||
491 | // Scan the candidate events and identify the "next" trace to read from | |
492 | int trace = TmfExperimentContext.NO_TRACE; | |
493 | TmfTimestamp timestamp = TmfTimestamp.BigCrunch; | |
494 | for (int i = 0; i < expContext.getTraces().length; i++) { | |
495 | TmfEvent event = expContext.getEvents()[i]; | |
496 | if (event != null && event.getTimestamp() != null) { | |
497 | TmfTimestamp otherTS = event.getTimestamp(); | |
498 | if (otherTS.compareTo(timestamp, true) < 0) { | |
499 | trace = i; | |
500 | timestamp = otherTS; | |
8c8bf09f ASL |
501 | } |
502 | } | |
503 | } | |
8f50c396 FC |
504 | |
505 | // Update the experiment context and set the "next" event | |
506 | TmfEvent event = null; | |
fa867360 FC |
507 | if (trace != TmfExperimentContext.NO_TRACE) { |
508 | updateIndex(expContext, timestamp); | |
82e04272 | 509 | |
fa867360 FC |
510 | TmfContext traceContext = expContext.getContexts()[trace]; |
511 | TmfExperimentLocation expLocation = (TmfExperimentLocation) expContext.getLocation(); | |
512 | expLocation.getLocation()[trace] = traceContext.getLocation().clone(); | |
82e04272 FC |
513 | |
514 | // updateIndex(expContext, timestamp); | |
515 | ||
fa867360 | 516 | expLocation.getRanks()[trace] = traceContext.getRank(); |
8f50c396 FC |
517 | expContext.setLastTrace(trace); |
518 | expContext.updateRank(1); | |
8f50c396 FC |
519 | event = expContext.getEvents()[trace]; |
520 | } | |
521 | ||
9b635e61 FC |
522 | // if (event != null) { |
523 | // Tracer.trace("Exp: " + (expContext.getRank() - 1) + ": " + event.getTimestamp().toString()); | |
524 | // dumpContext(expContext, false); | |
525 | // Tracer.trace("Ctx: Event returned= " + event.getTimestamp().toString()); | |
526 | // } | |
527 | ||
8f50c396 | 528 | return event; |
8c8bf09f ASL |
529 | } |
530 | ||
9b635e61 | 531 | public synchronized void updateIndex(ITmfContext context, TmfTimestamp timestamp) { |
550d787e | 532 | // Build the index as we go along |
9b635e61 | 533 | long rank = context.getRank(); |
550d787e FC |
534 | if (context.isValidRank() && (rank % fIndexPageSize) == 0) { |
535 | // Determine the table position | |
9b635e61 | 536 | long position = rank / fIndexPageSize; |
550d787e FC |
537 | // Add new entry at proper location (if empty) |
538 | if (fCheckpoints.size() == position) { | |
539 | ITmfLocation<?> location = context.getLocation().clone(); | |
1a971e96 | 540 | fCheckpoints.add(new TmfCheckpoint(timestamp.clone(), location)); |
550d787e FC |
541 | // System.out.println(this + "[" + (fCheckpoints.size() - 1) + "] " + timestamp + ", " + location.toString()); |
542 | } | |
543 | } | |
544 | } | |
545 | ||
54d55ced | 546 | /* (non-Javadoc) |
045df77d | 547 | * @see org.eclipse.linuxtools.tmf.trace.ITmfTrace#parseEvent(org.eclipse.linuxtools.tmf.trace.TmfContext) |
54d55ced | 548 | */ |
9f584e4c | 549 | public TmfEvent parseEvent(TmfContext context) { |
54d55ced | 550 | |
9b635e61 FC |
551 | // Validate the context |
552 | if (!(context instanceof TmfExperimentContext)) { | |
553 | return null; // Throw an exception? | |
554 | } | |
54d55ced | 555 | |
f6b14ce2 | 556 | if (!context.equals(fExperimentContext)) { |
9b635e61 FC |
557 | // Tracer.trace("Ctx: Restoring context"); |
558 | seekLocation(context.getLocation()); | |
559 | } | |
560 | ||
561 | TmfExperimentContext expContext = (TmfExperimentContext) context; | |
562 | ||
563 | // If an event was consumed previously, get the next one from that trace | |
564 | int lastTrace = expContext.getLastTrace(); | |
565 | if (lastTrace != TmfExperimentContext.NO_TRACE) { | |
566 | TmfContext traceContext = expContext.getContexts()[lastTrace]; | |
567 | expContext.getEvents()[lastTrace] = expContext.getTraces()[lastTrace].getNextEvent(traceContext); | |
fa867360 | 568 | expContext.setLastTrace(TmfExperimentContext.NO_TRACE); |
f6b14ce2 | 569 | fExperimentContext = (TmfExperimentContext) context; |
9b635e61 FC |
570 | } |
571 | ||
572 | // Scan the candidate events and identify the "next" trace to read from | |
573 | int trace = TmfExperimentContext.NO_TRACE; | |
574 | TmfTimestamp timestamp = TmfTimestamp.BigCrunch; | |
575 | for (int i = 0; i < expContext.getTraces().length; i++) { | |
576 | TmfEvent event = expContext.getEvents()[i]; | |
577 | if (event != null && event.getTimestamp() != null) { | |
578 | TmfTimestamp otherTS = event.getTimestamp(); | |
579 | if (otherTS.compareTo(timestamp, true) < 0) { | |
580 | trace = i; | |
581 | timestamp = otherTS; | |
85fb0e54 FC |
582 | } |
583 | } | |
85fb0e54 | 584 | } |
54d55ced | 585 | |
9b635e61 | 586 | TmfEvent event = null; |
fa867360 | 587 | if (trace != TmfExperimentContext.NO_TRACE) { |
9b635e61 FC |
588 | event = expContext.getEvents()[trace]; |
589 | } | |
f6b14ce2 | 590 | |
9b635e61 | 591 | return event; |
8c8bf09f ASL |
592 | } |
593 | ||
594 | /* (non-Javadoc) | |
595 | * @see java.lang.Object#toString() | |
596 | */ | |
597 | @Override | |
598 | public String toString() { | |
ce785d7d | 599 | return "[TmfExperiment (" + getName() + ")]"; |
8c8bf09f ASL |
600 | } |
601 | ||
602 | // ------------------------------------------------------------------------ | |
603 | // Indexing | |
604 | // ------------------------------------------------------------------------ | |
605 | ||
606 | /* | |
607 | * The experiment holds the globally ordered events of its set of traces. | |
608 | * It is expected to provide access to each individual event by index i.e. | |
9f584e4c | 609 | * it must be possible to request the Nth event of the experiment. |
8c8bf09f ASL |
610 | * |
611 | * The purpose of the index is to keep the information needed to rapidly | |
612 | * restore the traces contexts at regular intervals (every INDEX_PAGE_SIZE | |
613 | * event). | |
614 | */ | |
615 | ||
616 | // The index page size | |
9b635e61 | 617 | private static final int DEFAULT_INDEX_PAGE_SIZE = 5000; |
82e04272 | 618 | protected int fIndexPageSize; |
e31e01e8 | 619 | |
9b635e61 FC |
620 | // private static BufferedWriter fEventLog = null; |
621 | // private static BufferedWriter openLogFile(String filename) { | |
622 | // BufferedWriter outfile = null; | |
623 | // try { | |
624 | // outfile = new BufferedWriter(new FileWriter(filename)); | |
625 | // } catch (IOException e) { | |
626 | // e.printStackTrace(); | |
627 | // } | |
628 | // return outfile; | |
629 | // } | |
630 | ||
550d787e | 631 | @SuppressWarnings("unchecked") |
cb866e08 | 632 | private void indexExperiment(boolean waitForCompletion) { |
550d787e | 633 | |
550d787e | 634 | fCheckpoints.clear(); |
9b635e61 FC |
635 | |
636 | // fEventLog = openLogFile("TraceEvent.log"); | |
82e04272 | 637 | // System.out.println(System.currentTimeMillis() + ": Experiment indexing started"); |
550d787e | 638 | |
f9673903 FC |
639 | ITmfEventRequest<TmfEvent> request = new TmfEventRequest<TmfEvent>(TmfEvent.class, TmfTimeRange.Eternity, |
640 | TmfDataRequest.ALL_DATA, 1, ITmfDataRequest.ExecutionType.BACKGROUND) { | |
550d787e | 641 | |
cb866e08 | 642 | // long indexingStart = System.nanoTime(); |
550d787e FC |
643 | |
644 | TmfTimestamp startTime = null; | |
645 | TmfTimestamp lastTime = null; | |
550d787e FC |
646 | |
647 | @Override | |
f9673903 FC |
648 | public void handleData(TmfEvent event) { |
649 | super.handleData(event); | |
650 | if (event != null) { | |
651 | TmfTimestamp ts = event.getTimestamp(); | |
550d787e FC |
652 | if (startTime == null) |
653 | startTime = new TmfTimestamp(ts); | |
654 | lastTime = new TmfTimestamp(ts); | |
655 | ||
f9673903 | 656 | if ((getNbRead() % DEFAULT_INDEX_PAGE_SIZE) == 0) { |
550d787e FC |
657 | updateExperiment(); |
658 | } | |
659 | } | |
9aae0442 | 660 | } |
e31e01e8 | 661 | |
550d787e FC |
662 | @Override |
663 | public void handleSuccess() { | |
9b635e61 FC |
664 | // long indexingEnd = System.nanoTime(); |
665 | ||
666 | updateExperiment(); | |
667 | // System.out.println(System.currentTimeMillis() + ": Experiment indexing completed"); | |
f9673903 | 668 | |
9b635e61 FC |
669 | // long average = (indexingEnd - indexingStart) / fNbEvents; |
670 | // System.out.println(getName() + ": start=" + startTime + ", end=" + lastTime + ", elapsed=" + (indexingEnd * 1.0 - indexingStart) / 1000000000); | |
671 | // System.out.println(getName() + ": nbEvents=" + fNbEvents + " (" + (average / 1000) + "." + (average % 1000) + " us/evt)"); | |
e31e01e8 FC |
672 | } |
673 | ||
550d787e | 674 | private void updateExperiment() { |
f9673903 FC |
675 | int nbRead = getNbRead(); |
676 | if (nbRead != 0) { | |
0c2a2e08 FC |
677 | // updateTimeRange(); |
678 | // updateNbEvents(); | |
6c042a35 | 679 | fTimeRange = new TmfTimeRange(startTime, new TmfTimestamp(lastTime)); |
f9673903 | 680 | fNbEvents = nbRead; |
6c042a35 FC |
681 | notifyListeners(); |
682 | } | |
550d787e FC |
683 | } |
684 | }; | |
e31e01e8 | 685 | |
550d787e | 686 | sendRequest((ITmfDataRequest<T>) request); |
cb866e08 FC |
687 | if (waitForCompletion) |
688 | try { | |
689 | request.waitForCompletion(); | |
690 | } catch (InterruptedException e) { | |
691 | e.printStackTrace(); | |
692 | } | |
550d787e FC |
693 | } |
694 | ||
695 | protected void notifyListeners() { | |
9b635e61 | 696 | broadcast(new TmfExperimentUpdatedSignal(this, this)); // , null)); |
9f584e4c FC |
697 | } |
698 | ||
8c8bf09f ASL |
699 | // ------------------------------------------------------------------------ |
700 | // Signal handlers | |
701 | // ------------------------------------------------------------------------ | |
702 | ||
703 | @TmfSignalHandler | |
951d134a | 704 | public void experimentSelected(TmfExperimentSelectedSignal<T> signal) { |
ff4ed569 FC |
705 | TmfExperiment<?> experiment = signal.getExperiment(); |
706 | if (experiment == this) { | |
707 | setCurrentExperiment(experiment); | |
cb866e08 | 708 | indexExperiment(false); |
ff4ed569 FC |
709 | } |
710 | else { | |
711 | dispose(); | |
712 | } | |
8c8bf09f ASL |
713 | } |
714 | ||
715 | @TmfSignalHandler | |
716 | public void experimentUpdated(TmfExperimentUpdatedSignal signal) { | |
8c8bf09f ASL |
717 | } |
718 | ||
719 | @TmfSignalHandler | |
720 | public void traceUpdated(TmfTraceUpdatedSignal signal) { | |
721 | // TODO: Incremental index update | |
722 | synchronized(this) { | |
723 | updateNbEvents(); | |
724 | updateTimeRange(); | |
725 | } | |
9b635e61 | 726 | broadcast(new TmfExperimentUpdatedSignal(this, this)); // , signal.getTrace())); |
8c8bf09f ASL |
727 | } |
728 | ||
9b635e61 FC |
729 | // ------------------------------------------------------------------------ |
730 | // TmfDataProvider | |
731 | // ------------------------------------------------------------------------ | |
732 | ||
733 | @Override | |
f6b14ce2 | 734 | protected void queueBackgroundRequest(final ITmfDataRequest<T> request, final int blockSize, final boolean indexing) { |
9b635e61 FC |
735 | |
736 | // TODO: Handle the data requests also... | |
737 | if (!(request instanceof ITmfEventRequest<?>)) { | |
738 | super.queueRequest(request); | |
739 | return; | |
740 | } | |
f6b14ce2 | 741 | final ITmfEventRequest<T> eventRequest = (ITmfEventRequest<T>) request; |
9b635e61 | 742 | |
9b635e61 FC |
743 | Thread thread = new Thread() { |
744 | @Override | |
745 | public void run() { | |
746 | ||
747 | // final long requestStart = System.nanoTime(); | |
748 | ||
749 | final Integer[] CHUNK_SIZE = new Integer[1]; | |
f6b14ce2 | 750 | CHUNK_SIZE[0] = blockSize + ((indexing) ? 1 : 0); |
9b635e61 FC |
751 | |
752 | final Integer[] nbRead = new Integer[1]; | |
753 | nbRead[0] = 0; | |
754 | ||
755 | // final TmfTimestamp[] timestamp = new TmfTimestamp[1]; | |
f6b14ce2 FC |
756 | // timestamp[0] = new TmfTimestamp(eventRequest.getRange().getStartTime()); |
757 | // final TmfTimestamp endTS = eventRequest.getRange().getEndTime(); | |
9b635e61 FC |
758 | |
759 | final Boolean[] isFinished = new Boolean[1]; | |
760 | isFinished[0] = Boolean.FALSE; | |
761 | ||
762 | while (!isFinished[0]) { | |
763 | ||
f6b14ce2 | 764 | // TmfEventRequest<T> subRequest = new TmfEventRequest<T>(eventRequest.getDataType(), new TmfTimeRange(timestamp[0], endTS), CHUNK_SIZE[0], eventRequest.getBlockize(), ExecutionType.BACKGROUND) |
f9673903 FC |
765 | // TmfDataRequest<T> subRequest = new TmfDataRequest<T>(eventRequest.getDataType(), nbRead[0], CHUNK_SIZE[0], eventRequest.getBlockize(), ExecutionType.BACKGROUND) |
766 | TmfDataRequest<T> subRequest = new TmfDataRequest<T>(eventRequest.getDataType(), nbRead[0], CHUNK_SIZE[0], ExecutionType.BACKGROUND) | |
9b635e61 | 767 | { |
9b635e61 | 768 | @Override |
f9673903 FC |
769 | public void handleData(T data) { |
770 | super.handleData(data); | |
771 | eventRequest.handleData(data); | |
772 | if (getNbRead() == CHUNK_SIZE[0]) { | |
773 | nbRead[0] += getNbRead(); | |
9b635e61 | 774 | } |
f9673903 | 775 | if (getNbRead() > CHUNK_SIZE[0]) { |
9b635e61 FC |
776 | System.out.println("ERROR - Read too many events"); |
777 | } | |
778 | } | |
f9673903 | 779 | |
9b635e61 FC |
780 | @Override |
781 | public void handleCompleted() { | |
782 | // System.out.println("Request completed at: " + timestamp[0]); | |
f9673903 | 783 | if (getNbRead() < CHUNK_SIZE[0]) { |
f6b14ce2 | 784 | eventRequest.done(); |
9b635e61 | 785 | isFinished[0] = Boolean.TRUE; |
f9673903 | 786 | nbRead[0] += getNbRead(); |
9b635e61 FC |
787 | // System.out.println("fNbRead=" + fNbRead + ", count=" + count +", total=" + nbRead[0]); |
788 | } | |
789 | super.handleCompleted(); | |
790 | } | |
791 | }; | |
792 | ||
793 | if (!isFinished[0]) { | |
f6b14ce2 | 794 | queueRequest(subRequest); |
9b635e61 FC |
795 | |
796 | try { | |
797 | subRequest.waitForCompletion(); | |
798 | // System.out.println("Finished at " + timestamp[0]); | |
799 | } catch (InterruptedException e) { | |
800 | e.printStackTrace(); | |
801 | } | |
802 | ||
803 | // TmfTimestamp newTS = new TmfTimestamp(timestamp[0].getValue() + 1, timestamp[0].getScale(), timestamp[0].getPrecision()); | |
804 | // timestamp[0] = newTS; | |
f6b14ce2 | 805 | CHUNK_SIZE[0] = blockSize; |
9b635e61 FC |
806 | // System.out.println("New timestamp: " + timestamp[0]); |
807 | } | |
808 | } | |
809 | // final long requestEnded = System.nanoTime(); | |
810 | // System.out.println("Background request completed. Elapsed= " + (requestEnded * 1.0 - requestStart) / 1000000000); | |
811 | } | |
812 | }; | |
f6b14ce2 | 813 | |
9b635e61 FC |
814 | thread.start(); |
815 | } | |
816 | ||
8c8bf09f | 817 | } |