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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 | ||
05bd3318 FC |
18 | import org.eclipse.core.runtime.IProgressMonitor; |
19 | import org.eclipse.core.runtime.IStatus; | |
20 | import org.eclipse.core.runtime.Status; | |
21 | import org.eclipse.core.runtime.jobs.Job; | |
fc6ccf6f | 22 | import org.eclipse.linuxtools.tmf.component.TmfEventProvider; |
8c8bf09f ASL |
23 | import org.eclipse.linuxtools.tmf.event.TmfEvent; |
24 | import org.eclipse.linuxtools.tmf.event.TmfTimeRange; | |
25 | import org.eclipse.linuxtools.tmf.event.TmfTimestamp; | |
2fb2eb37 | 26 | import org.eclipse.linuxtools.tmf.request.ITmfDataRequest; |
f6b14ce2 | 27 | import org.eclipse.linuxtools.tmf.request.ITmfDataRequest.ExecutionType; |
2fb2eb37 | 28 | import org.eclipse.linuxtools.tmf.request.ITmfEventRequest; |
550d787e FC |
29 | import org.eclipse.linuxtools.tmf.request.TmfDataRequest; |
30 | import org.eclipse.linuxtools.tmf.request.TmfEventRequest; | |
ff4ed569 FC |
31 | import org.eclipse.linuxtools.tmf.signal.TmfExperimentSelectedSignal; |
32 | import org.eclipse.linuxtools.tmf.signal.TmfExperimentUpdatedSignal; | |
8c8bf09f | 33 | import org.eclipse.linuxtools.tmf.signal.TmfSignalHandler; |
550d787e | 34 | import org.eclipse.linuxtools.tmf.signal.TmfSignalManager; |
ff4ed569 | 35 | import org.eclipse.linuxtools.tmf.signal.TmfTraceUpdatedSignal; |
9f584e4c FC |
36 | import org.eclipse.linuxtools.tmf.trace.ITmfContext; |
37 | import org.eclipse.linuxtools.tmf.trace.ITmfLocation; | |
8c8bf09f | 38 | import org.eclipse.linuxtools.tmf.trace.ITmfTrace; |
9f584e4c FC |
39 | import org.eclipse.linuxtools.tmf.trace.TmfCheckpoint; |
40 | import org.eclipse.linuxtools.tmf.trace.TmfContext; | |
8c8bf09f ASL |
41 | |
42 | /** | |
43 | * <b><u>TmfExperiment</u></b> | |
44 | * <p> | |
45 | * TmfExperiment presents a time-ordered, unified view of a set of TmfTraces | |
9b635e61 | 46 | * that are part of a tracing experiment. |
8c8bf09f ASL |
47 | * <p> |
48 | */ | |
fc6ccf6f | 49 | public class TmfExperiment<T extends TmfEvent> extends TmfEventProvider<T> implements ITmfTrace { |
8c8bf09f ASL |
50 | |
51 | // ------------------------------------------------------------------------ | |
52 | // Attributes | |
53 | // ------------------------------------------------------------------------ | |
54 | ||
55 | // The currently selected experiment | |
82e04272 | 56 | protected static TmfExperiment<?> fCurrentExperiment = null; |
e31e01e8 | 57 | |
550d787e | 58 | // The set of traces that constitute the experiment |
82e04272 | 59 | protected ITmfTrace[] fTraces; |
8c8bf09f ASL |
60 | |
61 | // The total number of events | |
82e04272 | 62 | protected long fNbEvents; |
8c8bf09f ASL |
63 | |
64 | // The experiment time range | |
82e04272 | 65 | protected TmfTimeRange fTimeRange; |
8c8bf09f | 66 | |
9b635e61 | 67 | // The experiment reference timestamp (default: Zero) |
82e04272 | 68 | protected TmfTimestamp fEpoch; |
8c8bf09f | 69 | |
9f584e4c | 70 | // The experiment index |
82e04272 | 71 | protected Vector<TmfCheckpoint> fCheckpoints = new Vector<TmfCheckpoint>(); |
9f584e4c | 72 | |
f6b14ce2 FC |
73 | // The current experiment context |
74 | protected TmfExperimentContext fExperimentContext; | |
9b635e61 | 75 | |
8c8bf09f ASL |
76 | // ------------------------------------------------------------------------ |
77 | // Constructors | |
78 | // ------------------------------------------------------------------------ | |
79 | ||
80 | /** | |
81 | * @param type | |
82 | * @param id | |
83 | * @param traces | |
84 | * @param epoch | |
85 | * @param indexPageSize | |
86 | */ | |
87 | public TmfExperiment(Class<T> type, String id, ITmfTrace[] traces, TmfTimestamp epoch, int indexPageSize) { | |
045df77d | 88 | this(type, id, traces, TmfTimestamp.Zero, indexPageSize, false); |
cb866e08 FC |
89 | } |
90 | ||
9b635e61 | 91 | public TmfExperiment(Class<T> type, String id, ITmfTrace[] traces, TmfTimestamp epoch, int indexPageSize, boolean preIndexExperiment) { |
ce785d7d | 92 | super(id, type); |
8c8bf09f | 93 | |
9f584e4c | 94 | fTraces = traces; |
8c8bf09f ASL |
95 | fEpoch = epoch; |
96 | fIndexPageSize = indexPageSize; | |
97 | ||
9b635e61 | 98 | if (preIndexExperiment) indexExperiment(true); |
cb866e08 | 99 | |
8c8bf09f | 100 | updateTimeRange(); |
550d787e | 101 | } |
8c8bf09f | 102 | |
82e04272 FC |
103 | protected TmfExperiment(String id, Class<T> type) { |
104 | super(id, type); | |
105 | } | |
106 | ||
8c8bf09f ASL |
107 | /** |
108 | * @param type | |
109 | * @param id | |
110 | * @param traces | |
111 | */ | |
112 | public TmfExperiment(Class<T> type, String id, ITmfTrace[] traces) { | |
113 | this(type, id, traces, TmfTimestamp.Zero, DEFAULT_INDEX_PAGE_SIZE); | |
114 | } | |
115 | ||
116 | /** | |
117 | * @param type | |
118 | * @param id | |
119 | * @param traces | |
120 | * @param indexPageSize | |
121 | */ | |
122 | public TmfExperiment(Class<T> type, String id, ITmfTrace[] traces, int indexPageSize) { | |
123 | this(type, id, traces, TmfTimestamp.Zero, indexPageSize); | |
124 | } | |
377f1ad8 | 125 | |
f6b14ce2 FC |
126 | /** |
127 | * Copy constructor | |
128 | * @param other | |
129 | */ | |
ce785d7d | 130 | public TmfExperiment(TmfExperiment<T> other) { |
3b38ea61 | 131 | super(other.getName() + "(clone)", other.fType); //$NON-NLS-1$ |
377f1ad8 | 132 | |
ce785d7d FC |
133 | fEpoch = other.fEpoch; |
134 | fIndexPageSize = other.fIndexPageSize; | |
377f1ad8 | 135 | |
ce785d7d FC |
136 | fTraces = new ITmfTrace[other.fTraces.length]; |
137 | for (int trace = 0; trace < other.fTraces.length; trace++) { | |
138 | fTraces[trace] = other.fTraces[trace].createTraceCopy(); | |
377f1ad8 WB |
139 | } |
140 | ||
ce785d7d FC |
141 | fNbEvents = other.fNbEvents; |
142 | fTimeRange = other.fTimeRange; | |
377f1ad8 WB |
143 | } |
144 | ||
d4011df2 | 145 | @Override |
377f1ad8 | 146 | public TmfExperiment<T> createTraceCopy() { |
550d787e FC |
147 | TmfExperiment<T> experiment = new TmfExperiment<T>(this); |
148 | TmfSignalManager.deregister(experiment); | |
149 | return experiment; | |
377f1ad8 WB |
150 | } |
151 | ||
8c8bf09f | 152 | /** |
ff4ed569 | 153 | * Clears the experiment |
8c8bf09f ASL |
154 | */ |
155 | @Override | |
db1ea19b | 156 | public synchronized void dispose() { |
550d787e FC |
157 | if (fTraces != null) { |
158 | for (ITmfTrace trace : fTraces) { | |
159 | trace.dispose(); | |
160 | } | |
161 | fTraces = null; | |
162 | } | |
163 | if (fCheckpoints != null) { | |
164 | fCheckpoints.clear(); | |
ff4ed569 | 165 | } |
2fb2eb37 | 166 | super.dispose(); |
8c8bf09f ASL |
167 | } |
168 | ||
9f584e4c | 169 | // ------------------------------------------------------------------------ |
cbd4ad82 | 170 | // ITmfTrace |
9f584e4c FC |
171 | // ------------------------------------------------------------------------ |
172 | ||
d4011df2 | 173 | @Override |
9f584e4c FC |
174 | public String getPath() { |
175 | return null; | |
176 | } | |
177 | ||
d4011df2 | 178 | @Override |
9f584e4c FC |
179 | public long getNbEvents() { |
180 | return fNbEvents; | |
181 | } | |
182 | ||
d4011df2 FC |
183 | @Override |
184 | public int getCacheSize() { | |
54d55ced FC |
185 | return fIndexPageSize; |
186 | } | |
187 | ||
d4011df2 | 188 | @Override |
9f584e4c FC |
189 | public TmfTimeRange getTimeRange() { |
190 | return fTimeRange; | |
191 | } | |
192 | ||
d4011df2 | 193 | @Override |
9f584e4c FC |
194 | public TmfTimestamp getStartTime() { |
195 | return fTimeRange.getStartTime(); | |
196 | } | |
197 | ||
d4011df2 | 198 | @Override |
9f584e4c FC |
199 | public TmfTimestamp getEndTime() { |
200 | return fTimeRange.getEndTime(); | |
201 | } | |
202 | ||
54d55ced FC |
203 | public Vector<TmfCheckpoint> getCheckpoints() { |
204 | return fCheckpoints; | |
205 | } | |
206 | ||
8c8bf09f | 207 | // ------------------------------------------------------------------------ |
e31e01e8 | 208 | // Accessors |
8c8bf09f ASL |
209 | // ------------------------------------------------------------------------ |
210 | ||
c1c69938 | 211 | public static void setCurrentExperiment(TmfExperiment<?> experiment) { |
f6b14ce2 FC |
212 | fCurrentExperiment = experiment; |
213 | } | |
214 | ||
e31e01e8 FC |
215 | public static TmfExperiment<?> getCurrentExperiment() { |
216 | return fCurrentExperiment; | |
8c8bf09f ASL |
217 | } |
218 | ||
8c8bf09f ASL |
219 | public TmfTimestamp getEpoch() { |
220 | return fEpoch; | |
221 | } | |
222 | ||
9f584e4c FC |
223 | public ITmfTrace[] getTraces() { |
224 | return fTraces; | |
8c8bf09f ASL |
225 | } |
226 | ||
227 | /** | |
228 | * Returns the rank of the first event with the requested timestamp. | |
229 | * If none, returns the index of the next event (if any). | |
230 | * | |
85fb0e54 | 231 | * @param timestamp |
8c8bf09f ASL |
232 | * @return |
233 | */ | |
d4011df2 FC |
234 | @Override |
235 | public long getRank(TmfTimestamp timestamp) { | |
85fb0e54 | 236 | TmfExperimentContext context = seekEvent(timestamp); |
8c8bf09f ASL |
237 | return context.getRank(); |
238 | } | |
239 | ||
240 | /** | |
241 | * Returns the timestamp of the event at the requested index. | |
242 | * If none, returns null. | |
243 | * | |
244 | * @param index | |
245 | * @return | |
246 | */ | |
247 | public TmfTimestamp getTimestamp(int index) { | |
85fb0e54 | 248 | TmfExperimentContext context = seekEvent(index); |
7f407ead | 249 | TmfEvent event = getNextEvent(context); |
85fb0e54 | 250 | return (event != null) ? event.getTimestamp() : null; |
8c8bf09f ASL |
251 | } |
252 | ||
253 | // ------------------------------------------------------------------------ | |
254 | // Operators | |
255 | // ------------------------------------------------------------------------ | |
256 | ||
257 | /** | |
258 | * Update the total number of events | |
259 | */ | |
260 | private void updateNbEvents() { | |
261 | int nbEvents = 0; | |
262 | for (ITmfTrace trace : fTraces) { | |
263 | nbEvents += trace.getNbEvents(); | |
264 | } | |
265 | fNbEvents = nbEvents; | |
266 | } | |
267 | ||
268 | /** | |
269 | * Update the global time range | |
270 | */ | |
271 | private void updateTimeRange() { | |
272 | TmfTimestamp startTime = fTimeRange != null ? fTimeRange.getStartTime() : TmfTimestamp.BigCrunch; | |
273 | TmfTimestamp endTime = fTimeRange != null ? fTimeRange.getEndTime() : TmfTimestamp.BigBang; | |
274 | ||
275 | for (ITmfTrace trace : fTraces) { | |
550d787e FC |
276 | TmfTimestamp traceStartTime = trace.getStartTime(); |
277 | if (traceStartTime.compareTo(startTime, true) < 0) | |
278 | startTime = traceStartTime; | |
279 | TmfTimestamp traceEndTime = trace.getEndTime(); | |
280 | if (traceEndTime.compareTo(endTime, true) > 0) | |
281 | endTime = traceEndTime; | |
8c8bf09f | 282 | } |
36548af3 | 283 | fTimeRange = new TmfTimeRange(startTime, endTime); |
8c8bf09f ASL |
284 | } |
285 | ||
286 | // ------------------------------------------------------------------------ | |
287 | // TmfProvider | |
288 | // ------------------------------------------------------------------------ | |
8c8bf09f | 289 | @Override |
2fb2eb37 | 290 | public ITmfContext armRequest(ITmfDataRequest<T> request) { |
9b635e61 | 291 | // Tracer.trace("Ctx: Arming request - start"); |
2fb2eb37 | 292 | TmfTimestamp timestamp = (request instanceof ITmfEventRequest<?>) ? |
9b635e61 | 293 | ((ITmfEventRequest<T>) request).getRange().getStartTime() : null; |
0c9bad2e BH |
294 | |
295 | TmfExperimentContext context = null; | |
296 | if (timestamp != null) { | |
297 | // seek by timestamp | |
298 | context = seekEvent(timestamp); | |
299 | } else { | |
300 | // Seek by rank | |
301 | if ((fExperimentContext != null) && fExperimentContext.getRank() == request.getIndex()) { | |
302 | // We are already at the right context -> no need to seek | |
303 | context = fExperimentContext; | |
304 | } else { | |
305 | context = seekEvent(request.getIndex()); | |
306 | } | |
307 | } | |
9b635e61 | 308 | // Tracer.trace("Ctx: Arming request - done"); |
8c8bf09f ASL |
309 | return context; |
310 | } | |
311 | ||
312 | @SuppressWarnings("unchecked") | |
313 | @Override | |
314 | public T getNext(ITmfContext context) { | |
315 | if (context instanceof TmfExperimentContext) { | |
316 | return (T) getNextEvent((TmfExperimentContext) context); | |
317 | } | |
318 | return null; | |
319 | } | |
320 | ||
550d787e | 321 | // ------------------------------------------------------------------------ |
9f584e4c FC |
322 | // ITmfTrace trace positioning |
323 | // ------------------------------------------------------------------------ | |
324 | ||
325 | // Returns a brand new context based on the location provided | |
8f50c396 | 326 | // and initializes the event queues |
d4011df2 | 327 | @Override |
9b635e61 | 328 | public synchronized TmfExperimentContext seekLocation(ITmfLocation<?> location) { |
8f50c396 FC |
329 | |
330 | // Validate the location | |
331 | if (location != null && !(location instanceof TmfExperimentLocation)) { | |
332 | return null; // Throw an exception? | |
9f584e4c | 333 | } |
8f50c396 FC |
334 | |
335 | // Instantiate the location | |
336 | TmfExperimentLocation expLocation = (location == null) | |
337 | ? new TmfExperimentLocation(new ITmfLocation<?>[fTraces.length], new long[fTraces.length]) | |
338 | : (TmfExperimentLocation) location.clone(); | |
339 | ||
340 | // Create and populate the context's traces contexts | |
341 | TmfExperimentContext context = new TmfExperimentContext(fTraces, new TmfContext[fTraces.length]); | |
9b635e61 FC |
342 | // Tracer.trace("Ctx: SeekLocation - start"); |
343 | ||
8f50c396 FC |
344 | long rank = 0; |
345 | for (int i = 0; i < fTraces.length; i++) { | |
346 | // Get the relevant trace attributes | |
347 | ITmfLocation<?> traceLocation = expLocation.getLocation()[i]; | |
348 | long traceRank = expLocation.getRanks()[i]; | |
349 | ||
350 | // Set the corresponding sub-context | |
351 | context.getContexts()[i] = fTraces[i].seekLocation(traceLocation); | |
352 | context.getContexts()[i].setRank(traceRank); | |
353 | rank += traceRank; | |
354 | ||
355 | // Set the trace location and read the corresponding event | |
356 | expLocation.getLocation()[i] = context.getContexts()[i].getLocation(); | |
fa867360 | 357 | context.getEvents()[i] = fTraces[i].getNextEvent(context.getContexts()[i]); |
8f50c396 FC |
358 | } |
359 | ||
9b635e61 FC |
360 | // Tracer.trace("Ctx: SeekLocation - done"); |
361 | ||
8f50c396 FC |
362 | // Finalize context |
363 | context.setLocation(expLocation); | |
8f50c396 | 364 | context.setLastTrace(TmfExperimentContext.NO_TRACE); |
9b635e61 FC |
365 | context.setRank(rank); |
366 | ||
f6b14ce2 | 367 | fExperimentContext = context; |
9b635e61 | 368 | |
8f50c396 | 369 | return context; |
9f584e4c FC |
370 | } |
371 | ||
54d55ced FC |
372 | /* (non-Javadoc) |
373 | * @see org.eclipse.linuxtools.tmf.trace.ITmfTrace#seekEvent(org.eclipse.linuxtools.tmf.event.TmfTimestamp) | |
374 | */ | |
d4011df2 | 375 | @Override |
9b635e61 FC |
376 | public synchronized TmfExperimentContext seekEvent(TmfTimestamp timestamp) { |
377 | ||
378 | // Tracer.trace("Ctx: seekEvent(TS) - start"); | |
8c8bf09f | 379 | |
9f584e4c FC |
380 | if (timestamp == null) { |
381 | timestamp = TmfTimestamp.BigBang; | |
382 | } | |
383 | ||
384 | // First, find the right checkpoint | |
385 | int index = Collections.binarySearch(fCheckpoints, new TmfCheckpoint(timestamp, null)); | |
386 | ||
387 | // In the very likely case that the checkpoint was not found, bsearch | |
388 | // returns its negated would-be location (not an offset...). From that | |
389 | // index, we can then position the stream and get the event. | |
390 | if (index < 0) { | |
391 | index = Math.max(0, -(index + 2)); | |
392 | } | |
393 | ||
394 | // Position the experiment at the checkpoint | |
452ad365 | 395 | ITmfLocation<?> location; |
9f584e4c FC |
396 | synchronized (fCheckpoints) { |
397 | if (fCheckpoints.size() > 0) { | |
398 | if (index >= fCheckpoints.size()) { | |
399 | index = fCheckpoints.size() - 1; | |
400 | } | |
401 | location = fCheckpoints.elementAt(index).getLocation(); | |
402 | } | |
403 | else { | |
404 | location = null; | |
405 | } | |
406 | } | |
407 | ||
85fb0e54 | 408 | TmfExperimentContext context = seekLocation(location); |
cbd4ad82 | 409 | context.setRank((long) index * fIndexPageSize); |
9f584e4c | 410 | |
9b635e61 | 411 | // And locate the event |
fa867360 | 412 | TmfEvent event = parseEvent(context); |
9f584e4c | 413 | while (event != null && event.getTimestamp().compareTo(timestamp, false) < 0) { |
fa867360 FC |
414 | getNextEvent(context); |
415 | event = parseEvent(context); | |
9f584e4c FC |
416 | } |
417 | ||
f6b14ce2 | 418 | if (event == null) { |
fa867360 FC |
419 | context.setLocation(null); |
420 | context.setRank(ITmfContext.UNKNOWN_RANK); | |
9b635e61 | 421 | } |
f6b14ce2 FC |
422 | |
423 | return context; | |
9f584e4c | 424 | } |
8c8bf09f | 425 | |
54d55ced FC |
426 | /* (non-Javadoc) |
427 | * @see org.eclipse.linuxtools.tmf.trace.ITmfTrace#seekEvent(long) | |
428 | */ | |
d4011df2 | 429 | @Override |
9b635e61 FC |
430 | public synchronized TmfExperimentContext seekEvent(long rank) { |
431 | ||
432 | // Tracer.trace("Ctx: seekEvent(rank) - start"); | |
9f584e4c | 433 | |
54d55ced FC |
434 | // Position the stream at the previous checkpoint |
435 | int index = (int) rank / fIndexPageSize; | |
436 | ITmfLocation<?> location; | |
437 | synchronized (fCheckpoints) { | |
438 | if (fCheckpoints.size() == 0) { | |
439 | location = null; | |
440 | } | |
441 | else { | |
442 | if (index >= fCheckpoints.size()) { | |
443 | index = fCheckpoints.size() - 1; | |
444 | } | |
445 | location = fCheckpoints.elementAt(index).getLocation(); | |
446 | } | |
447 | } | |
e31e01e8 | 448 | |
54d55ced | 449 | TmfExperimentContext context = seekLocation(location); |
9b635e61 | 450 | context.setRank((long) index * fIndexPageSize); |
54d55ced | 451 | |
9b635e61 | 452 | // And locate the event |
fa867360 | 453 | TmfEvent event = parseEvent(context); |
9b635e61 | 454 | long pos = context.getRank(); |
fa867360 FC |
455 | while (event != null && pos++ < rank) { |
456 | getNextEvent(context); | |
457 | event = parseEvent(context); | |
54d55ced | 458 | } |
9f584e4c | 459 | |
f6b14ce2 | 460 | if (event == null) { |
fa867360 FC |
461 | context.setLocation(null); |
462 | context.setRank(ITmfContext.UNKNOWN_RANK); | |
9b635e61 | 463 | } |
f6b14ce2 | 464 | |
fa867360 | 465 | return context; |
8c8bf09f ASL |
466 | } |
467 | ||
468 | /** | |
469 | * Scan the next events from all traces and return the next one | |
470 | * in chronological order. | |
471 | * | |
472 | * @param context | |
473 | * @return | |
474 | */ | |
9b635e61 FC |
475 | |
476 | // private void dumpContext(TmfExperimentContext context, boolean isBefore) { | |
477 | ||
478 | // TmfContext context0 = context.getContexts()[0]; | |
479 | // TmfEvent event0 = context.getEvents()[0]; | |
480 | // TmfExperimentLocation location0 = (TmfExperimentLocation) context.getLocation(); | |
481 | // long rank0 = context.getRank(); | |
482 | // int trace = context.getLastTrace(); | |
483 | // | |
484 | // StringBuffer result = new StringBuffer("Ctx: " + (isBefore ? "B " : "A ")); | |
485 | // | |
486 | // result.append("[Ctx: fLoc= " + context0.getLocation().toString() + ", fRnk= " + context0.getRank() + "] "); | |
487 | // result.append("[Evt: " + event0.getTimestamp().toString() + "] "); | |
488 | // result.append("[Loc: fLoc= " + location0.getLocation()[0].toString() + ", fRnk= " + location0.getRanks()[0] + "] "); | |
489 | // result.append("[Rnk: " + rank0 + "], [Trc: " + trace + "]"); | |
490 | // Tracer.trace(result.toString()); | |
491 | // } | |
492 | ||
d4011df2 | 493 | @Override |
9f584e4c | 494 | public synchronized TmfEvent getNextEvent(TmfContext context) { |
54d55ced | 495 | |
8f50c396 FC |
496 | // Validate the context |
497 | if (!(context instanceof TmfExperimentContext)) { | |
498 | return null; // Throw an exception? | |
499 | } | |
54d55ced | 500 | |
f6b14ce2 | 501 | if (!context.equals(fExperimentContext)) { |
9b635e61 FC |
502 | // Tracer.trace("Ctx: Restoring context"); |
503 | seekLocation(context.getLocation()); | |
504 | } | |
505 | ||
8f50c396 FC |
506 | TmfExperimentContext expContext = (TmfExperimentContext) context; |
507 | ||
9b635e61 FC |
508 | // dumpContext(expContext, true); |
509 | ||
8f50c396 FC |
510 | // If an event was consumed previously, get the next one from that trace |
511 | int lastTrace = expContext.getLastTrace(); | |
512 | if (lastTrace != TmfExperimentContext.NO_TRACE) { | |
513 | TmfContext traceContext = expContext.getContexts()[lastTrace]; | |
514 | expContext.getEvents()[lastTrace] = expContext.getTraces()[lastTrace].getNextEvent(traceContext); | |
fa867360 | 515 | expContext.setLastTrace(TmfExperimentContext.NO_TRACE); |
8f50c396 FC |
516 | } |
517 | ||
518 | // Scan the candidate events and identify the "next" trace to read from | |
1324801a FC |
519 | TmfEvent eventArray[] = expContext.getEvents(); |
520 | if (eventArray == null) { | |
521 | return null; | |
522 | } | |
8f50c396 FC |
523 | int trace = TmfExperimentContext.NO_TRACE; |
524 | TmfTimestamp timestamp = TmfTimestamp.BigCrunch; | |
1324801a FC |
525 | if (eventArray.length == 1) { |
526 | if (eventArray[0] != null) { | |
527 | timestamp = eventArray[0].getTimestamp(); | |
528 | trace = 0; | |
529 | } | |
530 | } else { | |
531 | for (int i = 0; i < eventArray.length; i++) { | |
532 | TmfEvent event = eventArray[i]; | |
533 | if (event != null && event.getTimestamp() != null) { | |
534 | TmfTimestamp otherTS = event.getTimestamp(); | |
535 | if (otherTS.compareTo(timestamp, true) < 0) { | |
536 | trace = i; | |
537 | timestamp = otherTS; | |
538 | } | |
539 | } | |
540 | } | |
8c8bf09f | 541 | } |
1324801a | 542 | // Update the experiment context and set the "next" event |
8f50c396 | 543 | TmfEvent event = null; |
fa867360 FC |
544 | if (trace != TmfExperimentContext.NO_TRACE) { |
545 | updateIndex(expContext, timestamp); | |
82e04272 | 546 | |
fa867360 FC |
547 | TmfContext traceContext = expContext.getContexts()[trace]; |
548 | TmfExperimentLocation expLocation = (TmfExperimentLocation) expContext.getLocation(); | |
64fe8e8a FC |
549 | // expLocation.getLocation()[trace] = traceContext.getLocation().clone(); |
550 | expLocation.getLocation()[trace] = traceContext.getLocation(); | |
82e04272 FC |
551 | |
552 | // updateIndex(expContext, timestamp); | |
553 | ||
fa867360 | 554 | expLocation.getRanks()[trace] = traceContext.getRank(); |
8f50c396 FC |
555 | expContext.setLastTrace(trace); |
556 | expContext.updateRank(1); | |
8f50c396 FC |
557 | event = expContext.getEvents()[trace]; |
558 | } | |
559 | ||
9b635e61 FC |
560 | // if (event != null) { |
561 | // Tracer.trace("Exp: " + (expContext.getRank() - 1) + ": " + event.getTimestamp().toString()); | |
562 | // dumpContext(expContext, false); | |
563 | // Tracer.trace("Ctx: Event returned= " + event.getTimestamp().toString()); | |
564 | // } | |
565 | ||
8f50c396 | 566 | return event; |
8c8bf09f ASL |
567 | } |
568 | ||
9b635e61 | 569 | public synchronized void updateIndex(ITmfContext context, TmfTimestamp timestamp) { |
550d787e | 570 | // Build the index as we go along |
9b635e61 | 571 | long rank = context.getRank(); |
550d787e FC |
572 | if (context.isValidRank() && (rank % fIndexPageSize) == 0) { |
573 | // Determine the table position | |
9b635e61 | 574 | long position = rank / fIndexPageSize; |
550d787e FC |
575 | // Add new entry at proper location (if empty) |
576 | if (fCheckpoints.size() == position) { | |
577 | ITmfLocation<?> location = context.getLocation().clone(); | |
1a971e96 | 578 | fCheckpoints.add(new TmfCheckpoint(timestamp.clone(), location)); |
550d787e FC |
579 | // System.out.println(this + "[" + (fCheckpoints.size() - 1) + "] " + timestamp + ", " + location.toString()); |
580 | } | |
581 | } | |
582 | } | |
583 | ||
54d55ced | 584 | /* (non-Javadoc) |
045df77d | 585 | * @see org.eclipse.linuxtools.tmf.trace.ITmfTrace#parseEvent(org.eclipse.linuxtools.tmf.trace.TmfContext) |
54d55ced | 586 | */ |
d4011df2 | 587 | @Override |
9f584e4c | 588 | public TmfEvent parseEvent(TmfContext context) { |
54d55ced | 589 | |
9b635e61 FC |
590 | // Validate the context |
591 | if (!(context instanceof TmfExperimentContext)) { | |
592 | return null; // Throw an exception? | |
593 | } | |
54d55ced | 594 | |
f6b14ce2 | 595 | if (!context.equals(fExperimentContext)) { |
9b635e61 FC |
596 | // Tracer.trace("Ctx: Restoring context"); |
597 | seekLocation(context.getLocation()); | |
598 | } | |
599 | ||
600 | TmfExperimentContext expContext = (TmfExperimentContext) context; | |
601 | ||
602 | // If an event was consumed previously, get the next one from that trace | |
603 | int lastTrace = expContext.getLastTrace(); | |
604 | if (lastTrace != TmfExperimentContext.NO_TRACE) { | |
605 | TmfContext traceContext = expContext.getContexts()[lastTrace]; | |
606 | expContext.getEvents()[lastTrace] = expContext.getTraces()[lastTrace].getNextEvent(traceContext); | |
fa867360 | 607 | expContext.setLastTrace(TmfExperimentContext.NO_TRACE); |
f6b14ce2 | 608 | fExperimentContext = (TmfExperimentContext) context; |
9b635e61 FC |
609 | } |
610 | ||
611 | // Scan the candidate events and identify the "next" trace to read from | |
612 | int trace = TmfExperimentContext.NO_TRACE; | |
613 | TmfTimestamp timestamp = TmfTimestamp.BigCrunch; | |
614 | for (int i = 0; i < expContext.getTraces().length; i++) { | |
615 | TmfEvent event = expContext.getEvents()[i]; | |
616 | if (event != null && event.getTimestamp() != null) { | |
617 | TmfTimestamp otherTS = event.getTimestamp(); | |
618 | if (otherTS.compareTo(timestamp, true) < 0) { | |
619 | trace = i; | |
620 | timestamp = otherTS; | |
85fb0e54 FC |
621 | } |
622 | } | |
85fb0e54 | 623 | } |
54d55ced | 624 | |
9b635e61 | 625 | TmfEvent event = null; |
fa867360 | 626 | if (trace != TmfExperimentContext.NO_TRACE) { |
9b635e61 FC |
627 | event = expContext.getEvents()[trace]; |
628 | } | |
f6b14ce2 | 629 | |
9b635e61 | 630 | return event; |
8c8bf09f ASL |
631 | } |
632 | ||
633 | /* (non-Javadoc) | |
634 | * @see java.lang.Object#toString() | |
635 | */ | |
636 | @Override | |
3b38ea61 | 637 | @SuppressWarnings("nls") |
8c8bf09f | 638 | public String toString() { |
ce785d7d | 639 | return "[TmfExperiment (" + getName() + ")]"; |
8c8bf09f ASL |
640 | } |
641 | ||
642 | // ------------------------------------------------------------------------ | |
643 | // Indexing | |
644 | // ------------------------------------------------------------------------ | |
645 | ||
646 | /* | |
647 | * The experiment holds the globally ordered events of its set of traces. | |
648 | * It is expected to provide access to each individual event by index i.e. | |
9f584e4c | 649 | * it must be possible to request the Nth event of the experiment. |
8c8bf09f ASL |
650 | * |
651 | * The purpose of the index is to keep the information needed to rapidly | |
652 | * restore the traces contexts at regular intervals (every INDEX_PAGE_SIZE | |
653 | * event). | |
654 | */ | |
655 | ||
656 | // The index page size | |
9b635e61 | 657 | private static final int DEFAULT_INDEX_PAGE_SIZE = 5000; |
82e04272 | 658 | protected int fIndexPageSize; |
e31e01e8 | 659 | |
9b635e61 FC |
660 | // private static BufferedWriter fEventLog = null; |
661 | // private static BufferedWriter openLogFile(String filename) { | |
662 | // BufferedWriter outfile = null; | |
663 | // try { | |
664 | // outfile = new BufferedWriter(new FileWriter(filename)); | |
665 | // } catch (IOException e) { | |
666 | // e.printStackTrace(); | |
667 | // } | |
668 | // return outfile; | |
669 | // } | |
670 | ||
550d787e | 671 | @SuppressWarnings("unchecked") |
05bd3318 FC |
672 | protected void indexExperiment(boolean waitForCompletion) { |
673 | ||
674 | final Job job = new Job("Indexing " + getName() + "...") { //$NON-NLS-1$ //$NON-NLS-2$ | |
675 | @Override | |
676 | protected IStatus run(IProgressMonitor monitor) { | |
677 | while (!monitor.isCanceled()) { | |
678 | try { | |
679 | Thread.sleep(100); | |
680 | } catch (InterruptedException e) { | |
681 | return Status.OK_STATUS; | |
682 | } | |
683 | } | |
684 | monitor.done(); | |
685 | return Status.OK_STATUS; | |
686 | } | |
687 | }; | |
688 | job.schedule(); | |
550d787e | 689 | |
550d787e | 690 | fCheckpoints.clear(); |
9b635e61 FC |
691 | |
692 | // fEventLog = openLogFile("TraceEvent.log"); | |
82e04272 | 693 | // System.out.println(System.currentTimeMillis() + ": Experiment indexing started"); |
550d787e | 694 | |
f9673903 FC |
695 | ITmfEventRequest<TmfEvent> request = new TmfEventRequest<TmfEvent>(TmfEvent.class, TmfTimeRange.Eternity, |
696 | TmfDataRequest.ALL_DATA, 1, ITmfDataRequest.ExecutionType.BACKGROUND) { | |
550d787e | 697 | |
cb866e08 | 698 | // long indexingStart = System.nanoTime(); |
550d787e FC |
699 | |
700 | TmfTimestamp startTime = null; | |
701 | TmfTimestamp lastTime = null; | |
550d787e FC |
702 | |
703 | @Override | |
f9673903 FC |
704 | public void handleData(TmfEvent event) { |
705 | super.handleData(event); | |
706 | if (event != null) { | |
707 | TmfTimestamp ts = event.getTimestamp(); | |
550d787e FC |
708 | if (startTime == null) |
709 | startTime = new TmfTimestamp(ts); | |
710 | lastTime = new TmfTimestamp(ts); | |
711 | ||
83e13355 | 712 | if ((getNbRead() % fIndexPageSize) == 0) { |
550d787e FC |
713 | updateExperiment(); |
714 | } | |
715 | } | |
9aae0442 | 716 | } |
e31e01e8 | 717 | |
550d787e FC |
718 | @Override |
719 | public void handleSuccess() { | |
9b635e61 FC |
720 | // long indexingEnd = System.nanoTime(); |
721 | ||
722 | updateExperiment(); | |
723 | // System.out.println(System.currentTimeMillis() + ": Experiment indexing completed"); | |
f9673903 | 724 | |
9b635e61 FC |
725 | // long average = (indexingEnd - indexingStart) / fNbEvents; |
726 | // System.out.println(getName() + ": start=" + startTime + ", end=" + lastTime + ", elapsed=" + (indexingEnd * 1.0 - indexingStart) / 1000000000); | |
727 | // System.out.println(getName() + ": nbEvents=" + fNbEvents + " (" + (average / 1000) + "." + (average % 1000) + " us/evt)"); | |
dc299841 | 728 | super.handleSuccess(); |
e31e01e8 FC |
729 | } |
730 | ||
05bd3318 FC |
731 | @Override |
732 | public void handleCompleted() { | |
733 | job.cancel(); | |
734 | super.handleCompleted(); | |
735 | } | |
736 | ||
550d787e | 737 | private void updateExperiment() { |
f9673903 FC |
738 | int nbRead = getNbRead(); |
739 | if (nbRead != 0) { | |
0c2a2e08 FC |
740 | // updateTimeRange(); |
741 | // updateNbEvents(); | |
6c042a35 | 742 | fTimeRange = new TmfTimeRange(startTime, new TmfTimestamp(lastTime)); |
f9673903 | 743 | fNbEvents = nbRead; |
6c042a35 FC |
744 | notifyListeners(); |
745 | } | |
550d787e FC |
746 | } |
747 | }; | |
e31e01e8 | 748 | |
550d787e | 749 | sendRequest((ITmfDataRequest<T>) request); |
cb866e08 FC |
750 | if (waitForCompletion) |
751 | try { | |
752 | request.waitForCompletion(); | |
753 | } catch (InterruptedException e) { | |
754 | e.printStackTrace(); | |
755 | } | |
550d787e FC |
756 | } |
757 | ||
758 | protected void notifyListeners() { | |
9b635e61 | 759 | broadcast(new TmfExperimentUpdatedSignal(this, this)); // , null)); |
9f584e4c FC |
760 | } |
761 | ||
8c8bf09f ASL |
762 | // ------------------------------------------------------------------------ |
763 | // Signal handlers | |
764 | // ------------------------------------------------------------------------ | |
765 | ||
766 | @TmfSignalHandler | |
951d134a | 767 | public void experimentSelected(TmfExperimentSelectedSignal<T> signal) { |
ff4ed569 FC |
768 | TmfExperiment<?> experiment = signal.getExperiment(); |
769 | if (experiment == this) { | |
770 | setCurrentExperiment(experiment); | |
cb866e08 | 771 | indexExperiment(false); |
ff4ed569 FC |
772 | } |
773 | else { | |
774 | dispose(); | |
775 | } | |
8c8bf09f ASL |
776 | } |
777 | ||
778 | @TmfSignalHandler | |
779 | public void experimentUpdated(TmfExperimentUpdatedSignal signal) { | |
8c8bf09f ASL |
780 | } |
781 | ||
782 | @TmfSignalHandler | |
783 | public void traceUpdated(TmfTraceUpdatedSignal signal) { | |
784 | // TODO: Incremental index update | |
785 | synchronized(this) { | |
786 | updateNbEvents(); | |
787 | updateTimeRange(); | |
788 | } | |
9b635e61 | 789 | broadcast(new TmfExperimentUpdatedSignal(this, this)); // , signal.getTrace())); |
8c8bf09f ASL |
790 | } |
791 | ||
9b635e61 FC |
792 | // ------------------------------------------------------------------------ |
793 | // TmfDataProvider | |
794 | // ------------------------------------------------------------------------ | |
795 | ||
796 | @Override | |
f6b14ce2 | 797 | protected void queueBackgroundRequest(final ITmfDataRequest<T> request, final int blockSize, final boolean indexing) { |
9b635e61 FC |
798 | |
799 | // TODO: Handle the data requests also... | |
800 | if (!(request instanceof ITmfEventRequest<?>)) { | |
801 | super.queueRequest(request); | |
802 | return; | |
803 | } | |
f6b14ce2 | 804 | final ITmfEventRequest<T> eventRequest = (ITmfEventRequest<T>) request; |
9b635e61 | 805 | |
9b635e61 FC |
806 | Thread thread = new Thread() { |
807 | @Override | |
808 | public void run() { | |
809 | ||
810 | // final long requestStart = System.nanoTime(); | |
811 | ||
812 | final Integer[] CHUNK_SIZE = new Integer[1]; | |
f6b14ce2 | 813 | CHUNK_SIZE[0] = blockSize + ((indexing) ? 1 : 0); |
9b635e61 FC |
814 | |
815 | final Integer[] nbRead = new Integer[1]; | |
816 | nbRead[0] = 0; | |
817 | ||
818 | // final TmfTimestamp[] timestamp = new TmfTimestamp[1]; | |
f6b14ce2 FC |
819 | // timestamp[0] = new TmfTimestamp(eventRequest.getRange().getStartTime()); |
820 | // final TmfTimestamp endTS = eventRequest.getRange().getEndTime(); | |
9b635e61 FC |
821 | |
822 | final Boolean[] isFinished = new Boolean[1]; | |
823 | isFinished[0] = Boolean.FALSE; | |
824 | ||
825 | while (!isFinished[0]) { | |
826 | ||
f6b14ce2 | 827 | // TmfEventRequest<T> subRequest = new TmfEventRequest<T>(eventRequest.getDataType(), new TmfTimeRange(timestamp[0], endTS), CHUNK_SIZE[0], eventRequest.getBlockize(), ExecutionType.BACKGROUND) |
f9673903 FC |
828 | // TmfDataRequest<T> subRequest = new TmfDataRequest<T>(eventRequest.getDataType(), nbRead[0], CHUNK_SIZE[0], eventRequest.getBlockize(), ExecutionType.BACKGROUND) |
829 | TmfDataRequest<T> subRequest = new TmfDataRequest<T>(eventRequest.getDataType(), nbRead[0], CHUNK_SIZE[0], ExecutionType.BACKGROUND) | |
9b635e61 | 830 | { |
9b635e61 | 831 | @Override |
f9673903 FC |
832 | public void handleData(T data) { |
833 | super.handleData(data); | |
834 | eventRequest.handleData(data); | |
835 | if (getNbRead() == CHUNK_SIZE[0]) { | |
836 | nbRead[0] += getNbRead(); | |
9b635e61 | 837 | } |
f9673903 | 838 | if (getNbRead() > CHUNK_SIZE[0]) { |
9c4eb5f7 | 839 | System.out.println("ERROR - Read too many events"); //$NON-NLS-1$ |
9b635e61 FC |
840 | } |
841 | } | |
f9673903 | 842 | |
9b635e61 FC |
843 | @Override |
844 | public void handleCompleted() { | |
845 | // System.out.println("Request completed at: " + timestamp[0]); | |
f9673903 | 846 | if (getNbRead() < CHUNK_SIZE[0]) { |
c1c69938 FC |
847 | if (isCancelled()) { |
848 | eventRequest.cancel(); | |
849 | } | |
850 | else { | |
851 | eventRequest.done(); | |
852 | } | |
9b635e61 | 853 | isFinished[0] = Boolean.TRUE; |
f9673903 | 854 | nbRead[0] += getNbRead(); |
c1c69938 | 855 | // System.out.println("fNbRead=" + getNbRead() + " total=" + nbRead[0]); |
9b635e61 FC |
856 | } |
857 | super.handleCompleted(); | |
858 | } | |
859 | }; | |
860 | ||
861 | if (!isFinished[0]) { | |
f6b14ce2 | 862 | queueRequest(subRequest); |
9b635e61 FC |
863 | |
864 | try { | |
865 | subRequest.waitForCompletion(); | |
866 | // System.out.println("Finished at " + timestamp[0]); | |
867 | } catch (InterruptedException e) { | |
868 | e.printStackTrace(); | |
869 | } | |
870 | ||
871 | // TmfTimestamp newTS = new TmfTimestamp(timestamp[0].getValue() + 1, timestamp[0].getScale(), timestamp[0].getPrecision()); | |
872 | // timestamp[0] = newTS; | |
f6b14ce2 | 873 | CHUNK_SIZE[0] = blockSize; |
9b635e61 FC |
874 | // System.out.println("New timestamp: " + timestamp[0]); |
875 | } | |
876 | } | |
877 | // final long requestEnded = System.nanoTime(); | |
878 | // System.out.println("Background request completed. Elapsed= " + (requestEnded * 1.0 - requestStart) / 1000000000); | |
879 | } | |
880 | }; | |
f6b14ce2 | 881 | |
9b635e61 FC |
882 | thread.start(); |
883 | } | |
884 | ||
64267c9d FC |
885 | // @Override |
886 | // protected void queueBackgroundRequest(final ITmfDataRequest<T> request, final int blockSize, final boolean adjust) { | |
887 | // super.queueBackgroundRequest(request, fIndexPageSize, true); | |
888 | // } | |
8c8bf09f | 889 | } |