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8c8bf09f | 1 | /******************************************************************************* |
e31e01e8 | 2 | * Copyright (c) 2009, 2010 Ericsson |
8c8bf09f ASL |
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.trace; | |
14 | ||
b0a282fb | 15 | import java.io.File; |
62d1696a | 16 | import java.io.FileNotFoundException; |
62d1696a | 17 | import java.util.Collections; |
8c8bf09f ASL |
18 | import java.util.Vector; |
19 | ||
62d1696a FC |
20 | import org.eclipse.core.runtime.IProgressMonitor; |
21 | import org.eclipse.core.runtime.IStatus; | |
22 | import org.eclipse.core.runtime.Status; | |
23 | import org.eclipse.core.runtime.jobs.Job; | |
fc6ccf6f | 24 | import org.eclipse.linuxtools.tmf.component.TmfEventProvider; |
8c8bf09f ASL |
25 | import org.eclipse.linuxtools.tmf.event.TmfEvent; |
26 | import org.eclipse.linuxtools.tmf.event.TmfTimeRange; | |
27 | import org.eclipse.linuxtools.tmf.event.TmfTimestamp; | |
951d134a | 28 | import org.eclipse.linuxtools.tmf.request.TmfCoalescedEventRequest; |
4e3aa37d | 29 | import org.eclipse.linuxtools.tmf.request.TmfDataRequest; |
e31e01e8 | 30 | import org.eclipse.linuxtools.tmf.request.TmfEventRequest; |
8c8bf09f ASL |
31 | |
32 | /** | |
146a887c | 33 | * <b><u>TmfTrace</u></b> |
8c8bf09f | 34 | * <p> |
146a887c FC |
35 | * Abstract implementation of ITmfTrace. It should be sufficient to extend this |
36 | * class and provide implementation for <code>getCurrentLocation()</code> and | |
37 | * <code>seekLocation()</code>, as well as a proper parser, to have a working | |
4e3aa37d FC |
38 | * concrete implementation. |
39 | * | |
40 | * TODO: Add support for live streaming (notifications, incremental indexing, ...) | |
8c8bf09f | 41 | */ |
fc6ccf6f | 42 | public abstract class TmfTrace<T extends TmfEvent> extends TmfEventProvider<T> implements ITmfTrace { |
62d1696a | 43 | |
e31e01e8 | 44 | // ------------------------------------------------------------------------ |
62d1696a | 45 | // Constants |
e31e01e8 | 46 | // ------------------------------------------------------------------------ |
62d1696a FC |
47 | |
48 | // The default number of events to cache | |
e31e01e8 | 49 | // TODO: Make the DEFAULT_CACHE_SIZE a preference |
8d2e2848 | 50 | public static final int DEFAULT_CACHE_SIZE = 1000; |
8c8bf09f | 51 | |
e31e01e8 | 52 | // ------------------------------------------------------------------------ |
8c8bf09f | 53 | // Attributes |
e31e01e8 | 54 | // ------------------------------------------------------------------------ |
8c8bf09f | 55 | |
b0a282fb FC |
56 | // The trace path |
57 | private final String fPath; | |
58 | ||
59 | // The trace name | |
62d1696a FC |
60 | private final String fName; |
61 | ||
8d2e2848 | 62 | // The cache page size AND checkpoints interval |
9f584e4c | 63 | protected int fIndexPageSize; |
62d1696a FC |
64 | |
65 | // The set of event stream checkpoints (for random access) | |
9f584e4c | 66 | protected Vector<TmfCheckpoint> fCheckpoints = new Vector<TmfCheckpoint>(); |
62d1696a FC |
67 | |
68 | // The number of events collected | |
a3fe52fc | 69 | protected long fNbEvents = 0; |
62d1696a FC |
70 | |
71 | // The time span of the event stream | |
72 | private TmfTimeRange fTimeRange = new TmfTimeRange(TmfTimestamp.BigBang, TmfTimestamp.BigBang); | |
73 | ||
e31e01e8 | 74 | // ------------------------------------------------------------------------ |
50adc88e | 75 | // Constructors |
e31e01e8 | 76 | // ------------------------------------------------------------------------ |
8c8bf09f | 77 | |
62d1696a | 78 | /** |
e31e01e8 FC |
79 | * @param path |
80 | * @param cacheSize | |
62d1696a FC |
81 | * @throws FileNotFoundException |
82 | */ | |
e31e01e8 FC |
83 | protected TmfTrace(Class<T> type, String path, int cacheSize) throws FileNotFoundException { |
84 | super(type); | |
b0a282fb FC |
85 | int sep = path.lastIndexOf(File.separator); |
86 | fName = (sep >= 0) ? path.substring(sep + 1) : path; | |
87 | fPath = path; | |
9f584e4c | 88 | fIndexPageSize = (cacheSize > 0) ? cacheSize : DEFAULT_CACHE_SIZE; |
8c8bf09f ASL |
89 | } |
90 | ||
62d1696a | 91 | /** |
e31e01e8 | 92 | * @param path |
62d1696a FC |
93 | * @throws FileNotFoundException |
94 | */ | |
e31e01e8 FC |
95 | protected TmfTrace(Class<T> type, String path) throws FileNotFoundException { |
96 | this(type, path, DEFAULT_CACHE_SIZE); | |
8c8bf09f ASL |
97 | } |
98 | ||
e31e01e8 | 99 | // ------------------------------------------------------------------------ |
8c8bf09f | 100 | // Accessors |
e31e01e8 | 101 | // ------------------------------------------------------------------------ |
8c8bf09f | 102 | |
62d1696a | 103 | /** |
b0a282fb | 104 | * @return the trace path |
62d1696a | 105 | */ |
b0a282fb FC |
106 | public String getPath() { |
107 | return fPath; | |
8c8bf09f ASL |
108 | } |
109 | ||
62d1696a | 110 | /** |
146a887c | 111 | * @return the trace name |
62d1696a | 112 | */ |
fc6ccf6f FC |
113 | @Override |
114 | public String getName() { | |
62d1696a | 115 | return fName; |
8c8bf09f ASL |
116 | } |
117 | ||
62d1696a FC |
118 | /* (non-Javadoc) |
119 | * @see org.eclipse.linuxtools.tmf.stream.ITmfEventStream#getNbEvents() | |
120 | */ | |
4e3aa37d | 121 | public long getNbEvents() { |
62d1696a | 122 | return fNbEvents; |
8c8bf09f ASL |
123 | } |
124 | ||
b0a282fb FC |
125 | /** |
126 | * @return the size of the cache | |
127 | */ | |
8d2e2848 | 128 | public int getCacheSize() { |
9f584e4c | 129 | return fIndexPageSize; |
b0a282fb FC |
130 | } |
131 | ||
62d1696a FC |
132 | /* (non-Javadoc) |
133 | * @see org.eclipse.linuxtools.tmf.stream.ITmfEventStream#getTimeRange() | |
134 | */ | |
8c8bf09f | 135 | public TmfTimeRange getTimeRange() { |
62d1696a | 136 | return fTimeRange; |
8c8bf09f ASL |
137 | } |
138 | ||
e31e01e8 FC |
139 | /* (non-Javadoc) |
140 | * @see org.eclipse.linuxtools.tmf.trace.ITmfTrace#getStartTime() | |
141 | */ | |
146a887c FC |
142 | public TmfTimestamp getStartTime() { |
143 | return fTimeRange.getStartTime(); | |
144 | } | |
145 | ||
e31e01e8 FC |
146 | /* (non-Javadoc) |
147 | * @see org.eclipse.linuxtools.tmf.trace.ITmfTrace#getEndTime() | |
148 | */ | |
146a887c FC |
149 | public TmfTimestamp getEndTime() { |
150 | return fTimeRange.getEndTime(); | |
151 | } | |
152 | ||
e31e01e8 | 153 | // ------------------------------------------------------------------------ |
8c8bf09f | 154 | // Operators |
e31e01e8 | 155 | // ------------------------------------------------------------------------ |
8c8bf09f | 156 | |
4e3aa37d FC |
157 | protected void setTimeRange(TmfTimeRange range) { |
158 | fTimeRange = range; | |
159 | } | |
160 | ||
161 | protected void setStartTime(TmfTimestamp startTime) { | |
162 | fTimeRange = new TmfTimeRange(startTime, fTimeRange.getEndTime()); | |
163 | } | |
164 | ||
165 | protected void setEndTime(TmfTimestamp endTime) { | |
166 | fTimeRange = new TmfTimeRange(fTimeRange.getStartTime(), endTime); | |
167 | } | |
168 | ||
e31e01e8 FC |
169 | // ------------------------------------------------------------------------ |
170 | // TmfProvider | |
171 | // ------------------------------------------------------------------------ | |
172 | ||
173 | @Override | |
fc6ccf6f | 174 | public ITmfContext armRequest(TmfDataRequest<T> request) { |
e31e01e8 FC |
175 | if (request instanceof TmfEventRequest<?>) { |
176 | return seekEvent(((TmfEventRequest<T>) request).getRange().getStartTime()); | |
177 | } | |
951d134a FC |
178 | if (request instanceof TmfCoalescedEventRequest<?>) { |
179 | return seekEvent(((TmfCoalescedEventRequest<T>) request).getRange().getStartTime()); | |
180 | } | |
e31e01e8 FC |
181 | return null; |
182 | } | |
183 | ||
184 | /** | |
185 | * Return the next piece of data based on the context supplied. The context | |
186 | * would typically be updated for the subsequent read. | |
187 | * | |
188 | * @param context | |
189 | * @return | |
190 | */ | |
191 | @SuppressWarnings("unchecked") | |
192 | @Override | |
193 | public T getNext(ITmfContext context) { | |
9f584e4c FC |
194 | if (context instanceof TmfContext) { |
195 | return (T) getNextEvent((TmfContext) context); | |
e31e01e8 FC |
196 | } |
197 | return null; | |
198 | } | |
199 | ||
fc6ccf6f FC |
200 | // @Override |
201 | // public boolean isCompleted(TmfDataRequest<T> request, T data) { | |
202 | // if (request instanceof TmfEventRequest<?> && data != null) { | |
203 | // return data.getTimestamp().compareTo(((TmfEventRequest<T>) request).getRange().getEndTime(), false) > 0; | |
204 | // } | |
205 | // return true; | |
206 | // } | |
e31e01e8 FC |
207 | |
208 | ||
209 | // ------------------------------------------------------------------------ | |
210 | // ITmfTrace | |
211 | // ------------------------------------------------------------------------ | |
212 | ||
146a887c FC |
213 | /* (non-Javadoc) |
214 | * @see org.eclipse.linuxtools.tmf.trace.ITmfTrace#seekEvent(org.eclipse.linuxtools.tmf.event.TmfTimestamp) | |
215 | */ | |
9f584e4c | 216 | public TmfContext seekEvent(TmfTimestamp timestamp) { |
62d1696a | 217 | |
4e3aa37d FC |
218 | if (timestamp == null) { |
219 | timestamp = TmfTimestamp.BigBang; | |
220 | } | |
221 | ||
222 | // First, find the right checkpoint | |
9f584e4c | 223 | int index = Collections.binarySearch(fCheckpoints, new TmfCheckpoint(timestamp, null)); |
62d1696a | 224 | |
8d2e2848 | 225 | // In the very likely case that the checkpoint was not found, bsearch |
62d1696a FC |
226 | // returns its negated would-be location (not an offset...). From that |
227 | // index, we can then position the stream and get the event. | |
228 | if (index < 0) { | |
229 | index = Math.max(0, -(index + 2)); | |
230 | } | |
231 | ||
232 | // Position the stream at the checkpoint | |
452ad365 | 233 | ITmfLocation<?> location; |
e31e01e8 FC |
234 | synchronized (fCheckpoints) { |
235 | if (fCheckpoints.size() > 0) { | |
236 | if (index >= fCheckpoints.size()) { | |
237 | index = fCheckpoints.size() - 1; | |
238 | } | |
239 | location = fCheckpoints.elementAt(index).getLocation(); | |
240 | } | |
241 | else { | |
242 | location = null; | |
243 | } | |
8d2e2848 | 244 | } |
9f584e4c FC |
245 | TmfContext nextEventContext = seekLocation(location); |
246 | nextEventContext.setRank(index * fIndexPageSize); | |
247 | TmfContext currentEventContext = new TmfContext(nextEventContext); | |
62d1696a FC |
248 | |
249 | // And get the event | |
250 | TmfEvent event = getNextEvent(nextEventContext); | |
251 | while (event != null && event.getTimestamp().compareTo(timestamp, false) < 0) { | |
8d2e2848 | 252 | currentEventContext.setLocation(nextEventContext.getLocation()); |
9f584e4c | 253 | currentEventContext.updateRank(1); |
62d1696a FC |
254 | event = getNextEvent(nextEventContext); |
255 | } | |
256 | ||
257 | return currentEventContext; | |
258 | } | |
259 | ||
146a887c FC |
260 | /* (non-Javadoc) |
261 | * @see org.eclipse.linuxtools.tmf.trace.ITmfTrace#seekEvent(int) | |
262 | */ | |
9f584e4c | 263 | public TmfContext seekEvent(long rank) { |
62d1696a FC |
264 | |
265 | // Position the stream at the previous checkpoint | |
9f584e4c | 266 | int index = (int) rank / fIndexPageSize; |
452ad365 | 267 | ITmfLocation<?> location; |
e31e01e8 FC |
268 | synchronized (fCheckpoints) { |
269 | if (fCheckpoints.size() > 0) { | |
270 | if (index >= fCheckpoints.size()) { | |
271 | index = fCheckpoints.size() - 1; | |
272 | } | |
273 | location = fCheckpoints.elementAt(index).getLocation(); | |
274 | } | |
275 | else { | |
276 | location = null; | |
277 | } | |
8d2e2848 | 278 | } |
9f584e4c FC |
279 | TmfContext context = seekLocation(location); |
280 | long pos = index * fIndexPageSize; | |
281 | context.setRank(pos); | |
e31e01e8 | 282 | |
9f584e4c | 283 | if (pos < rank) { |
e31e01e8 | 284 | TmfEvent event = getNextEvent(context); |
9f584e4c | 285 | while (event != null && ++pos < rank) { |
e31e01e8 FC |
286 | event = getNextEvent(context); |
287 | } | |
165c977c | 288 | } |
62d1696a | 289 | |
9f584e4c | 290 | return new TmfContext(context.getLocation(), context.getRank()); |
8c8bf09f ASL |
291 | } |
292 | ||
146a887c FC |
293 | /* (non-Javadoc) |
294 | * @see org.eclipse.linuxtools.tmf.trace.ITmfTrace#getNextEvent(org.eclipse.linuxtools.tmf.trace.ITmfTrace.TraceContext) | |
295 | */ | |
9f584e4c | 296 | public synchronized TmfEvent getNextEvent(TmfContext context) { |
e31e01e8 | 297 | // parseEvent() does not update the context |
cc6eec3e | 298 | TmfEvent event = parseEvent(context); |
e31e01e8 | 299 | context.setLocation(getCurrentLocation()); |
9f584e4c | 300 | context.updateRank(1); |
4e3aa37d | 301 | if (event != null) { |
4e3aa37d FC |
302 | processEvent(event); |
303 | } | |
146a887c FC |
304 | return event; |
305 | } | |
8c8bf09f | 306 | |
4e3aa37d | 307 | /** |
e31e01e8 FC |
308 | * Hook for "special" processing by the concrete class |
309 | * (called by getNextEvent()) | |
310 | * | |
146a887c FC |
311 | * @param event |
312 | */ | |
313 | public void processEvent(TmfEvent event) { | |
314 | // Do nothing by default | |
62d1696a | 315 | } |
4e3aa37d | 316 | |
e31e01e8 FC |
317 | /** |
318 | * To be implemented by the concrete class | |
4e3aa37d | 319 | */ |
452ad365 FC |
320 | public abstract TmfContext seekLocation(ITmfLocation<?> location); |
321 | public abstract ITmfLocation<?> getCurrentLocation(); | |
9f584e4c | 322 | public abstract TmfEvent parseEvent(TmfContext context); |
4e3aa37d | 323 | |
e31e01e8 FC |
324 | // ------------------------------------------------------------------------ |
325 | // toString | |
326 | // ------------------------------------------------------------------------ | |
8d2e2848 FC |
327 | |
328 | /* (non-Javadoc) | |
329 | * @see java.lang.Object#toString() | |
330 | */ | |
331 | @Override | |
332 | public String toString() { | |
333 | return "[TmfTrace (" + fName + "]"; | |
334 | } | |
335 | ||
e31e01e8 FC |
336 | // ------------------------------------------------------------------------ |
337 | // Indexing | |
338 | // ------------------------------------------------------------------------ | |
146a887c | 339 | |
e31e01e8 FC |
340 | /* |
341 | * The purpose of the index is to keep the information needed to rapidly | |
342 | * access a trace event based on its timestamp or rank. | |
343 | * | |
344 | * NOTE: As it is, doesn't work for streaming traces. | |
345 | */ | |
346 | ||
347 | private IndexingJob job; | |
9f584e4c FC |
348 | |
349 | // Indicates that an indexing job is already running | |
4e3aa37d | 350 | private Boolean fIndexing = false; |
9f584e4c | 351 | private Boolean fIndexed = false; |
e31e01e8 FC |
352 | |
353 | public void indexTrace(boolean waitForCompletion) { | |
4e3aa37d | 354 | synchronized (fIndexing) { |
9f584e4c | 355 | if (fIndexed || fIndexing) { |
4e3aa37d FC |
356 | return; |
357 | } | |
358 | fIndexing = true; | |
359 | } | |
360 | ||
e31e01e8 | 361 | job = new IndexingJob("Indexing " + fName); |
62d1696a | 362 | job.schedule(); |
4e3aa37d | 363 | |
e31e01e8 | 364 | if (waitForCompletion) { |
4e3aa37d FC |
365 | try { |
366 | job.join(); | |
367 | } catch (InterruptedException e) { | |
4e3aa37d FC |
368 | e.printStackTrace(); |
369 | } | |
52e28818 | 370 | } |
62d1696a FC |
371 | } |
372 | ||
373 | private class IndexingJob extends Job { | |
374 | ||
375 | public IndexingJob(String name) { | |
376 | super(name); | |
377 | } | |
378 | ||
379 | /* (non-Javadoc) | |
380 | * @see org.eclipse.core.runtime.jobs.Job#run(org.eclipse.core.runtime.IProgressMonitor) | |
381 | */ | |
382 | @Override | |
383 | protected IStatus run(IProgressMonitor monitor) { | |
384 | ||
62d1696a FC |
385 | monitor.beginTask("Indexing " + fName, IProgressMonitor.UNKNOWN); |
386 | ||
e31e01e8 FC |
387 | int nbEvents = 0; |
388 | TmfTimestamp startTime = null; | |
389 | TmfTimestamp lastTime = null; | |
390 | ||
9f584e4c FC |
391 | // Reset the index |
392 | fCheckpoints = new Vector<TmfCheckpoint>(); | |
e31e01e8 | 393 | |
98029bc9 FC |
394 | try { |
395 | // Position the trace at the beginning | |
9f584e4c | 396 | TmfContext context = seekLocation(null); |
452ad365 | 397 | ITmfLocation<?> location = context.getLocation(); |
e31e01e8 | 398 | |
9f584e4c | 399 | // Get the first event |
e31e01e8 | 400 | TmfEvent event = getNextEvent(context); |
9f584e4c FC |
401 | if (event != null) { |
402 | startTime = new TmfTimestamp(event.getTimestamp()); | |
403 | } | |
404 | ||
405 | // Index the trace | |
406 | while (event != null) { | |
e31e01e8 | 407 | lastTime = event.getTimestamp(); |
9f584e4c | 408 | if ((nbEvents++ % fIndexPageSize) == 0) { |
e31e01e8 | 409 | lastTime = new TmfTimestamp(event.getTimestamp()); |
9f584e4c | 410 | fCheckpoints.add(new TmfCheckpoint(lastTime, location.clone())); |
e31e01e8 | 411 | fNbEvents = nbEvents; |
98029bc9 FC |
412 | fTimeRange = new TmfTimeRange(startTime, lastTime); |
413 | notifyListeners(new TmfTimeRange(startTime, lastTime)); | |
4e3aa37d | 414 | |
62d1696a | 415 | monitor.worked(1); |
4e3aa37d | 416 | |
62d1696a FC |
417 | // Check monitor *after* fCheckpoints has been updated |
418 | if (monitor.isCanceled()) { | |
4e3aa37d | 419 | monitor.done(); |
62d1696a FC |
420 | return Status.CANCEL_STATUS; |
421 | } | |
165c977c | 422 | } |
165c977c | 423 | |
e31e01e8 | 424 | // We will need this location at the next iteration |
9f584e4c | 425 | if ((nbEvents % fIndexPageSize) == 0) { |
452ad365 | 426 | location = context.getLocation(); |
e31e01e8 FC |
427 | } |
428 | ||
429 | event = getNextEvent(context); | |
62d1696a FC |
430 | } |
431 | } | |
432 | finally { | |
433 | synchronized(this) { | |
98029bc9 | 434 | fNbEvents = nbEvents; |
62d1696a | 435 | fTimeRange = new TmfTimeRange(startTime, lastTime); |
4e3aa37d | 436 | fIndexing = false; |
9f584e4c | 437 | fIndexed = true; |
62d1696a | 438 | } |
98029bc9 | 439 | notifyListeners(new TmfTimeRange(startTime, lastTime)); |
62d1696a | 440 | monitor.done(); |
8c8bf09f | 441 | } |
62d1696a | 442 | |
9f584e4c FC |
443 | // createOffsetsFile(); |
444 | // dumpCheckpoints(); | |
98029bc9 | 445 | |
4e3aa37d | 446 | return Status.OK_STATUS; |
62d1696a | 447 | } |
8c8bf09f ASL |
448 | } |
449 | ||
a3fe52fc | 450 | protected void notifyListeners(TmfTimeRange range) { |
e31e01e8 | 451 | broadcast(new TmfTraceUpdatedSignal(this, this, range)); |
146a887c FC |
452 | } |
453 | ||
9f584e4c FC |
454 | // ======================================================================== |
455 | // Toubleshooting code | |
456 | // ======================================================================== | |
457 | ||
458 | // private void dumpCheckpoints() { | |
98029bc9 FC |
459 | // System.out.println("-----"); |
460 | // System.out.println("Checkpoints of " + fName); | |
461 | // for (int i = 0; i < fCheckpoints.size(); i++) { | |
9f584e4c FC |
462 | // TmfCheckpoint checkpoint = fCheckpoints.get(i); |
463 | // TmfContext context = new TmfContext(checkpoint.getLocation(), i * fIndexPageSize); | |
e31e01e8 | 464 | // TmfEvent event = getNext(context); |
9f584e4c | 465 | // System.out.println(" Entry: " + i + " rank: " + (context.getRank() - 1) + " timestamp: " + checkpoint.getTimestamp() + ", event: " + event.getTimestamp()); |
98029bc9 FC |
466 | // assert((checkpoint.getTimestamp().compareTo(event.getTimestamp(), false) == 0)); |
467 | // } | |
468 | // System.out.println(); | |
469 | // } | |
470 | ||
471 | // private void createOffsetsFile() { | |
472 | // | |
473 | // try { | |
e31e01e8 FC |
474 | // // The trace context validation file is read by TmfTraceContext |
475 | // ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(new FileOutputStream("TmfTraceContext.dat"))); | |
98029bc9 FC |
476 | // |
477 | // TmfTraceContext context = null; | |
478 | // context = seekLocation(null); | |
479 | // out.writeObject(context.getLocation()); | |
480 | // | |
481 | // int nbEvents = 0; | |
482 | // while (getNextEvent(context) != null) { | |
483 | // out.writeObject(context.getLocation()); | |
484 | // nbEvents++; | |
485 | // } | |
486 | // out.close(); | |
487 | // System.out.println("TmfTrace wrote " + nbEvents + " events"); | |
488 | // } catch (FileNotFoundException e) { | |
489 | // // TODO Auto-generated catch block | |
490 | // e.printStackTrace(); | |
491 | // } catch (IOException e) { | |
492 | // // TODO Auto-generated catch block | |
493 | // e.printStackTrace(); | |
494 | // } | |
495 | // } | |
e31e01e8 | 496 | // |
98029bc9 FC |
497 | // private void createOffsetsFile() { |
498 | // | |
499 | // try { | |
500 | // DataOutputStream out = new DataOutputStream(new BufferedOutputStream(new FileOutputStream("LTTngOffsets.dat"))); | |
501 | // | |
502 | // TmfTraceContext context = null; | |
503 | // context = seekLocation(null); | |
504 | // | |
505 | // TmfEvent event; | |
506 | // int nbEvents = 0; | |
507 | // while ((event = getNextEvent(context)) != null) { | |
508 | // out.writeUTF(event.getTimestamp().toString()); | |
509 | // nbEvents++; | |
510 | // } | |
511 | // out.close(); | |
512 | // System.out.println("TmfTrace wrote " + nbEvents + " events"); | |
513 | // } catch (FileNotFoundException e) { | |
514 | // // TODO Auto-generated catch block | |
515 | // e.printStackTrace(); | |
516 | // } catch (IOException e) { | |
517 | // // TODO Auto-generated catch block | |
518 | // e.printStackTrace(); | |
519 | // } | |
520 | // } | |
521 | ||
8c8bf09f | 522 | } |