| 1 | /******************************************************************************* |
| 2 | * Copyright (c) 2009, 2013 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 | * William Bourque - Initial API and implementation |
| 11 | * Yuriy Vashchuk - GUI reorganisation, simplification and some related code improvements. |
| 12 | * Yuriy Vashchuk - Histograms optimisation. |
| 13 | * Yuriy Vashchuk - Histogram Canvas Heritage correction |
| 14 | * Francois Chouinard - Cleanup and refactoring |
| 15 | * Francois Chouinard - Moved from LTTng to TMF |
| 16 | *******************************************************************************/ |
| 17 | |
| 18 | package org.eclipse.linuxtools.tmf.ui.views.histogram; |
| 19 | |
| 20 | import org.eclipse.linuxtools.tmf.core.event.ITmfEvent; |
| 21 | import org.eclipse.linuxtools.tmf.core.request.ITmfDataRequest.ExecutionType; |
| 22 | import org.eclipse.linuxtools.tmf.core.request.TmfDataRequest; |
| 23 | import org.eclipse.linuxtools.tmf.core.signal.TmfRangeSynchSignal; |
| 24 | import org.eclipse.linuxtools.tmf.core.signal.TmfSignalHandler; |
| 25 | import org.eclipse.linuxtools.tmf.core.signal.TmfSignalManager; |
| 26 | import org.eclipse.linuxtools.tmf.core.signal.TmfTimeSynchSignal; |
| 27 | import org.eclipse.linuxtools.tmf.core.signal.TmfTraceClosedSignal; |
| 28 | import org.eclipse.linuxtools.tmf.core.signal.TmfTraceOpenedSignal; |
| 29 | import org.eclipse.linuxtools.tmf.core.signal.TmfTraceRangeUpdatedSignal; |
| 30 | import org.eclipse.linuxtools.tmf.core.signal.TmfTraceSelectedSignal; |
| 31 | import org.eclipse.linuxtools.tmf.core.signal.TmfTraceUpdatedSignal; |
| 32 | import org.eclipse.linuxtools.tmf.core.timestamp.ITmfTimestamp; |
| 33 | import org.eclipse.linuxtools.tmf.core.timestamp.TmfTimeRange; |
| 34 | import org.eclipse.linuxtools.tmf.core.timestamp.TmfTimestamp; |
| 35 | import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace; |
| 36 | import org.eclipse.linuxtools.tmf.ui.editors.ITmfTraceEditor; |
| 37 | import org.eclipse.linuxtools.tmf.ui.views.TmfView; |
| 38 | import org.eclipse.swt.SWT; |
| 39 | import org.eclipse.swt.layout.GridData; |
| 40 | import org.eclipse.swt.layout.GridLayout; |
| 41 | import org.eclipse.swt.widgets.Composite; |
| 42 | import org.eclipse.ui.IEditorPart; |
| 43 | |
| 44 | /** |
| 45 | * The purpose of this view is to provide graphical time distribution statistics about the trace events. |
| 46 | * <p> |
| 47 | * The view is composed of two histograms and two controls: |
| 48 | * <ul> |
| 49 | * <li>an event distribution histogram for the whole trace; |
| 50 | * <li>an event distribution histogram for current time window (window span); |
| 51 | * <li>the timestamp of the currently selected event; |
| 52 | * <li>the window span (size of the time window of the smaller histogram). |
| 53 | * </ul> |
| 54 | * The histograms x-axis show their respective time range. |
| 55 | * |
| 56 | * @version 2.0 |
| 57 | * @author Francois Chouinard |
| 58 | */ |
| 59 | public class HistogramView extends TmfView { |
| 60 | |
| 61 | // ------------------------------------------------------------------------ |
| 62 | // Constants |
| 63 | // ------------------------------------------------------------------------ |
| 64 | |
| 65 | /** |
| 66 | * The view ID as defined in plugin.xml |
| 67 | */ |
| 68 | public static final String ID = "org.eclipse.linuxtools.tmf.ui.views.histogram"; //$NON-NLS-1$ |
| 69 | |
| 70 | // ------------------------------------------------------------------------ |
| 71 | // Attributes |
| 72 | // ------------------------------------------------------------------------ |
| 73 | |
| 74 | // Parent widget |
| 75 | private Composite fParent; |
| 76 | |
| 77 | // The current trace |
| 78 | private ITmfTrace fTrace; |
| 79 | |
| 80 | // Current timestamp/time window - everything in the TIME_SCALE |
| 81 | private long fTraceStartTime; |
| 82 | private long fTraceEndTime; |
| 83 | private long fWindowStartTime; |
| 84 | private long fWindowEndTime; |
| 85 | private long fWindowSpan; |
| 86 | private long fCurrentTimestamp; |
| 87 | |
| 88 | // Time controls |
| 89 | private HistogramTextControl fCurrentEventTimeControl; |
| 90 | private HistogramTextControl fTimeSpanControl; |
| 91 | |
| 92 | // Histogram/request for the full trace range |
| 93 | private static FullTraceHistogram fFullTraceHistogram; |
| 94 | private HistogramRequest fFullTraceRequest; |
| 95 | |
| 96 | // Histogram/request for the selected time range |
| 97 | private static TimeRangeHistogram fTimeRangeHistogram; |
| 98 | private HistogramRequest fTimeRangeRequest; |
| 99 | |
| 100 | // ------------------------------------------------------------------------ |
| 101 | // Constructor |
| 102 | // ------------------------------------------------------------------------ |
| 103 | |
| 104 | /** |
| 105 | * Default constructor |
| 106 | */ |
| 107 | public HistogramView() { |
| 108 | super(ID); |
| 109 | } |
| 110 | |
| 111 | @Override |
| 112 | public void dispose() { |
| 113 | if ((fTimeRangeRequest != null) && !fTimeRangeRequest.isCompleted()) { |
| 114 | fTimeRangeRequest.cancel(); |
| 115 | } |
| 116 | if ((fFullTraceRequest != null) && !fFullTraceRequest.isCompleted()) { |
| 117 | fFullTraceRequest.cancel(); |
| 118 | } |
| 119 | fFullTraceHistogram.dispose(); |
| 120 | fTimeRangeHistogram.dispose(); |
| 121 | fCurrentEventTimeControl.dispose(); |
| 122 | fTimeSpanControl.dispose(); |
| 123 | super.dispose(); |
| 124 | } |
| 125 | |
| 126 | // ------------------------------------------------------------------------ |
| 127 | // TmfView |
| 128 | // ------------------------------------------------------------------------ |
| 129 | |
| 130 | @Override |
| 131 | public void createPartControl(Composite parent) { |
| 132 | |
| 133 | fParent = parent; |
| 134 | |
| 135 | // Control labels |
| 136 | final String currentEventLabel = Messages.HistogramView_currentEventLabel; |
| 137 | final String windowSpanLabel = Messages.HistogramView_windowSpanLabel; |
| 138 | |
| 139 | // -------------------------------------------------------------------- |
| 140 | // Set the HistogramView layout |
| 141 | // -------------------------------------------------------------------- |
| 142 | |
| 143 | Composite viewComposite = new Composite(fParent, SWT.FILL); |
| 144 | GridLayout gridLayout = new GridLayout(); |
| 145 | gridLayout.numColumns = 2; |
| 146 | gridLayout.horizontalSpacing = 5; |
| 147 | gridLayout.verticalSpacing = 0; |
| 148 | gridLayout.marginHeight = 0; |
| 149 | gridLayout.marginWidth = 0; |
| 150 | viewComposite.setLayout(gridLayout); |
| 151 | |
| 152 | // Use all available space |
| 153 | GridData gridData = new GridData(); |
| 154 | gridData.horizontalAlignment = SWT.FILL; |
| 155 | gridData.verticalAlignment = SWT.FILL; |
| 156 | gridData.grabExcessHorizontalSpace = true; |
| 157 | viewComposite.setLayoutData(gridData); |
| 158 | |
| 159 | // -------------------------------------------------------------------- |
| 160 | // Time controls |
| 161 | // -------------------------------------------------------------------- |
| 162 | |
| 163 | Composite controlsComposite = new Composite(viewComposite, SWT.FILL); |
| 164 | gridLayout = new GridLayout(); |
| 165 | gridLayout.numColumns = 2; |
| 166 | gridLayout.marginHeight = 0; |
| 167 | gridLayout.marginWidth = 0; |
| 168 | gridLayout.horizontalSpacing = 5; |
| 169 | gridLayout.verticalSpacing = 0; |
| 170 | gridLayout.makeColumnsEqualWidth = false; |
| 171 | gridLayout.marginLeft = 5; |
| 172 | gridLayout.marginRight = 5; |
| 173 | controlsComposite.setLayout(gridLayout); |
| 174 | |
| 175 | // Current event time control |
| 176 | gridData = new GridData(); |
| 177 | gridData.horizontalAlignment = SWT.CENTER; |
| 178 | gridData.verticalAlignment = SWT.CENTER; |
| 179 | fCurrentEventTimeControl = new HistogramCurrentTimeControl(this, controlsComposite, currentEventLabel, 0L); |
| 180 | fCurrentEventTimeControl.setLayoutData(gridData); |
| 181 | fCurrentEventTimeControl.setValue(Long.MIN_VALUE); |
| 182 | |
| 183 | // Window span time control |
| 184 | gridData = new GridData(); |
| 185 | gridData.horizontalAlignment = SWT.CENTER; |
| 186 | gridData.verticalAlignment = SWT.CENTER; |
| 187 | fTimeSpanControl = new HistogramTimeRangeControl(this, controlsComposite, windowSpanLabel, 0L); |
| 188 | fTimeSpanControl.setLayoutData(gridData); |
| 189 | fTimeSpanControl.setValue(Long.MIN_VALUE); |
| 190 | |
| 191 | // -------------------------------------------------------------------- |
| 192 | // Time range histogram |
| 193 | // -------------------------------------------------------------------- |
| 194 | |
| 195 | Composite timeRangeComposite = new Composite(viewComposite, SWT.FILL); |
| 196 | gridLayout = new GridLayout(); |
| 197 | gridLayout.numColumns = 1; |
| 198 | gridLayout.marginHeight = 0; |
| 199 | gridLayout.marginWidth = 0; |
| 200 | gridLayout.marginTop = 5; |
| 201 | gridLayout.horizontalSpacing = 0; |
| 202 | gridLayout.verticalSpacing = 0; |
| 203 | gridLayout.marginLeft = 5; |
| 204 | gridLayout.marginRight = 5; |
| 205 | timeRangeComposite.setLayout(gridLayout); |
| 206 | |
| 207 | // Use remaining horizontal space |
| 208 | gridData = new GridData(); |
| 209 | gridData.horizontalAlignment = SWT.FILL; |
| 210 | gridData.verticalAlignment = SWT.FILL; |
| 211 | gridData.grabExcessHorizontalSpace = true; |
| 212 | timeRangeComposite.setLayoutData(gridData); |
| 213 | |
| 214 | // Histogram |
| 215 | fTimeRangeHistogram = new TimeRangeHistogram(this, timeRangeComposite); |
| 216 | |
| 217 | // -------------------------------------------------------------------- |
| 218 | // Full range histogram |
| 219 | // -------------------------------------------------------------------- |
| 220 | |
| 221 | Composite fullRangeComposite = new Composite(viewComposite, SWT.FILL); |
| 222 | gridLayout = new GridLayout(); |
| 223 | gridLayout.numColumns = 1; |
| 224 | gridLayout.marginHeight = 0; |
| 225 | gridLayout.marginWidth = 0; |
| 226 | gridLayout.marginTop = 5; |
| 227 | gridLayout.horizontalSpacing = 0; |
| 228 | gridLayout.verticalSpacing = 0; |
| 229 | gridLayout.marginLeft = 5; |
| 230 | gridLayout.marginRight = 5; |
| 231 | fullRangeComposite.setLayout(gridLayout); |
| 232 | |
| 233 | // Use remaining horizontal space |
| 234 | gridData = new GridData(); |
| 235 | gridData.horizontalAlignment = SWT.FILL; |
| 236 | gridData.verticalAlignment = SWT.FILL; |
| 237 | gridData.horizontalSpan = 2; |
| 238 | gridData.grabExcessHorizontalSpace = true; |
| 239 | fullRangeComposite.setLayoutData(gridData); |
| 240 | |
| 241 | // Histogram |
| 242 | fFullTraceHistogram = new FullTraceHistogram(this, fullRangeComposite); |
| 243 | |
| 244 | IEditorPart editor = getSite().getPage().getActiveEditor(); |
| 245 | if (editor instanceof ITmfTraceEditor) { |
| 246 | ITmfTrace trace = ((ITmfTraceEditor) editor).getTrace(); |
| 247 | if (trace != null) { |
| 248 | traceSelected(new TmfTraceSelectedSignal(this, trace)); |
| 249 | } |
| 250 | } |
| 251 | } |
| 252 | |
| 253 | @Override |
| 254 | public void setFocus() { |
| 255 | fFullTraceHistogram.fCanvas.setFocus(); |
| 256 | } |
| 257 | |
| 258 | void refresh() { |
| 259 | fParent.layout(true); |
| 260 | } |
| 261 | |
| 262 | // ------------------------------------------------------------------------ |
| 263 | // Accessors |
| 264 | // ------------------------------------------------------------------------ |
| 265 | |
| 266 | /** |
| 267 | * Returns the current trace handled by the view |
| 268 | * |
| 269 | * @return the current trace |
| 270 | * @since 2.0 |
| 271 | */ |
| 272 | public ITmfTrace getTrace() { |
| 273 | return fTrace; |
| 274 | } |
| 275 | |
| 276 | /** |
| 277 | * Returns the time range of the current selected window (base on default time scale). |
| 278 | * |
| 279 | * @return the time range of current selected window. |
| 280 | * @since 2.0 |
| 281 | */ |
| 282 | public TmfTimeRange getTimeRange() { |
| 283 | return new TmfTimeRange( |
| 284 | new TmfTimestamp(fWindowStartTime, ITmfTimestamp.NANOSECOND_SCALE), |
| 285 | new TmfTimestamp(fWindowEndTime, ITmfTimestamp.NANOSECOND_SCALE)); |
| 286 | } |
| 287 | |
| 288 | // ------------------------------------------------------------------------ |
| 289 | // Operations |
| 290 | // ------------------------------------------------------------------------ |
| 291 | |
| 292 | /** |
| 293 | * Broadcast TmfSignal about new current time value. |
| 294 | * @param newTime the new current time. |
| 295 | */ |
| 296 | void updateCurrentEventTime(long newTime) { |
| 297 | if (fTrace != null) { |
| 298 | TmfTimeRange timeRange = new TmfTimeRange(new TmfTimestamp(newTime, ITmfTimestamp.NANOSECOND_SCALE), TmfTimestamp.BIG_CRUNCH); |
| 299 | HistogramRequest request = new HistogramRequest(fTimeRangeHistogram.getDataModel(), timeRange, 0, 1, 0, ExecutionType.FOREGROUND) { |
| 300 | @Override |
| 301 | public void handleData(ITmfEvent event) { |
| 302 | if (event != null) { |
| 303 | TmfTimeSynchSignal signal = new TmfTimeSynchSignal(this, event.getTimestamp()); |
| 304 | TmfSignalManager.dispatchSignal(signal); |
| 305 | } |
| 306 | } |
| 307 | }; |
| 308 | fTrace.sendRequest(request); |
| 309 | } |
| 310 | } |
| 311 | |
| 312 | /** |
| 313 | * Broadcast TmfSignal about new selected time range. |
| 314 | * @param startTime the new start time |
| 315 | * @param endTime the new end time |
| 316 | */ |
| 317 | void updateTimeRange(long startTime, long endTime) { |
| 318 | if (fTrace != null) { |
| 319 | // Build the new time range; keep the current time |
| 320 | TmfTimeRange timeRange = new TmfTimeRange( |
| 321 | new TmfTimestamp(startTime, ITmfTimestamp.NANOSECOND_SCALE), |
| 322 | new TmfTimestamp(endTime, ITmfTimestamp.NANOSECOND_SCALE)); |
| 323 | ITmfTimestamp currentTime = new TmfTimestamp(fCurrentTimestamp, ITmfTimestamp.NANOSECOND_SCALE); |
| 324 | fTimeSpanControl.setValue(endTime - startTime); |
| 325 | |
| 326 | // Send the FW signal |
| 327 | TmfRangeSynchSignal signal = new TmfRangeSynchSignal(this, timeRange, currentTime); |
| 328 | TmfSignalManager.dispatchSignal(signal); |
| 329 | } |
| 330 | } |
| 331 | |
| 332 | /** |
| 333 | * Broadcast TmfSignal about new selected time range. |
| 334 | * @param newDuration new duration (relative to current start time) |
| 335 | */ |
| 336 | public synchronized void updateTimeRange(long newDuration) { |
| 337 | if (fTrace != null) { |
| 338 | long delta = newDuration - fWindowSpan; |
| 339 | long newStartTime = fWindowStartTime - (delta / 2); |
| 340 | setNewRange(newStartTime, newDuration); |
| 341 | } |
| 342 | } |
| 343 | |
| 344 | private void setNewRange(long startTime, long duration) { |
| 345 | long realStart = startTime; |
| 346 | |
| 347 | if (realStart < fTraceStartTime) { |
| 348 | realStart = fTraceStartTime; |
| 349 | } |
| 350 | |
| 351 | long endTime = realStart + duration; |
| 352 | if (endTime > fTraceEndTime) { |
| 353 | endTime = fTraceEndTime; |
| 354 | if ((endTime - duration) > fTraceStartTime) { |
| 355 | realStart = endTime - duration; |
| 356 | } else { |
| 357 | realStart = fTraceStartTime; |
| 358 | } |
| 359 | } |
| 360 | updateTimeRange(realStart, endTime); |
| 361 | } |
| 362 | |
| 363 | // ------------------------------------------------------------------------ |
| 364 | // Signal handlers |
| 365 | // ------------------------------------------------------------------------ |
| 366 | |
| 367 | /** |
| 368 | * Handles trace opened signal. Loads histogram if new trace time range is not |
| 369 | * equal <code>TmfTimeRange.NULL_RANGE</code> |
| 370 | * @param signal the trace selected signal |
| 371 | * @since 2.0 |
| 372 | */ |
| 373 | @TmfSignalHandler |
| 374 | public void traceOpened(TmfTraceOpenedSignal signal) { |
| 375 | assert (signal != null); |
| 376 | fTrace = signal.getTrace(); |
| 377 | loadTrace(); |
| 378 | } |
| 379 | |
| 380 | /** |
| 381 | * Handles trace selected signal. Loads histogram if new trace time range is not |
| 382 | * equal <code>TmfTimeRange.NULL_RANGE</code> |
| 383 | * @param signal the trace selected signal |
| 384 | * @since 2.0 |
| 385 | */ |
| 386 | @TmfSignalHandler |
| 387 | public void traceSelected(TmfTraceSelectedSignal signal) { |
| 388 | assert (signal != null); |
| 389 | if (fTrace != signal.getTrace()) { |
| 390 | fTrace = signal.getTrace(); |
| 391 | loadTrace(); |
| 392 | } |
| 393 | } |
| 394 | |
| 395 | private void loadTrace() { |
| 396 | initializeHistograms(); |
| 397 | fParent.redraw(); |
| 398 | } |
| 399 | |
| 400 | /** |
| 401 | * Handles trace closed signal. Clears the view and data model and cancels requests. |
| 402 | * @param signal the trace closed signal |
| 403 | * @since 2.0 |
| 404 | */ |
| 405 | @TmfSignalHandler |
| 406 | public void traceClosed(TmfTraceClosedSignal signal) { |
| 407 | |
| 408 | if (signal.getTrace() != fTrace) { |
| 409 | return; |
| 410 | } |
| 411 | |
| 412 | // Kill any running request |
| 413 | if ((fTimeRangeRequest != null) && !fTimeRangeRequest.isCompleted()) { |
| 414 | fTimeRangeRequest.cancel(); |
| 415 | } |
| 416 | if ((fFullTraceRequest != null) && !fFullTraceRequest.isCompleted()) { |
| 417 | fFullTraceRequest.cancel(); |
| 418 | } |
| 419 | |
| 420 | // Initialize the internal data |
| 421 | fTrace = null; |
| 422 | fTraceStartTime = 0L; |
| 423 | fTraceEndTime = 0L; |
| 424 | fWindowStartTime = 0L; |
| 425 | fWindowEndTime = 0L; |
| 426 | fWindowSpan = 0L; |
| 427 | fCurrentTimestamp = 0L; |
| 428 | |
| 429 | // Clear the UI widgets |
| 430 | fFullTraceHistogram.clear(); |
| 431 | fTimeRangeHistogram.clear(); |
| 432 | fCurrentEventTimeControl.setValue(Long.MIN_VALUE); |
| 433 | |
| 434 | fTimeSpanControl.setValue(Long.MIN_VALUE); |
| 435 | } |
| 436 | |
| 437 | /** |
| 438 | * Handles trace range updated signal. Extends histogram according to the new time range. If a |
| 439 | * HistogramRequest is already ongoing, it will be cancelled and a new request with the new range |
| 440 | * will be issued. |
| 441 | * |
| 442 | * @param signal the trace range updated signal |
| 443 | * @since 2.0 |
| 444 | */ |
| 445 | @TmfSignalHandler |
| 446 | public void traceRangeUpdated(TmfTraceRangeUpdatedSignal signal) { |
| 447 | |
| 448 | if (signal.getTrace() != fTrace) { |
| 449 | return; |
| 450 | } |
| 451 | |
| 452 | TmfTimeRange fullRange = signal.getRange(); |
| 453 | |
| 454 | fTraceStartTime = fullRange.getStartTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue(); |
| 455 | fTraceEndTime = fullRange.getEndTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue(); |
| 456 | |
| 457 | fFullTraceHistogram.setFullRange(fTraceStartTime, fTraceEndTime); |
| 458 | fTimeRangeHistogram.setFullRange(fTraceStartTime, fTraceEndTime); |
| 459 | |
| 460 | sendFullRangeRequest(fullRange); |
| 461 | } |
| 462 | |
| 463 | /** |
| 464 | * Handles the trace updated signal. Used to update time limits (start and end time) |
| 465 | * @param signal the trace updated signal |
| 466 | * @since 2.0 |
| 467 | */ |
| 468 | @TmfSignalHandler |
| 469 | public void traceUpdated(TmfTraceUpdatedSignal signal) { |
| 470 | if (signal.getTrace() != fTrace) { |
| 471 | return; |
| 472 | } |
| 473 | TmfTimeRange fullRange = signal.getTrace().getTimeRange(); |
| 474 | fTraceStartTime = fullRange.getStartTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue(); |
| 475 | fTraceEndTime = fullRange.getEndTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue(); |
| 476 | |
| 477 | fFullTraceHistogram.setFullRange(fTraceStartTime, fTraceEndTime); |
| 478 | fTimeRangeHistogram.setFullRange(fTraceStartTime, fTraceEndTime); |
| 479 | |
| 480 | fFullTraceHistogram.setTimeRange(fTimeRangeHistogram.getStartTime(), fWindowSpan); |
| 481 | fTimeRangeHistogram.setTimeRange(fTimeRangeHistogram.getStartTime(), fWindowSpan); |
| 482 | |
| 483 | if ((fFullTraceRequest != null) && fFullTraceRequest.getRange().getEndTime().compareTo(signal.getRange().getEndTime()) < 0) { |
| 484 | sendFullRangeRequest(fullRange); |
| 485 | } |
| 486 | } |
| 487 | |
| 488 | /** |
| 489 | * Handles the current time updated signal. Sets the current time in the time range |
| 490 | * histogram as well as the full histogram. |
| 491 | * |
| 492 | * @param signal the signal to process |
| 493 | */ |
| 494 | @TmfSignalHandler |
| 495 | public void currentTimeUpdated(TmfTimeSynchSignal signal) { |
| 496 | // Because this can't happen :-) |
| 497 | assert (signal != null); |
| 498 | |
| 499 | // Update the selected event time |
| 500 | ITmfTimestamp currentTime = signal.getCurrentTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE); |
| 501 | fCurrentTimestamp = currentTime.getValue(); |
| 502 | |
| 503 | // Notify the relevant widgets |
| 504 | fFullTraceHistogram.setCurrentEvent(fCurrentTimestamp); |
| 505 | fTimeRangeHistogram.setCurrentEvent(fCurrentTimestamp); |
| 506 | fCurrentEventTimeControl.setValue(fCurrentTimestamp); |
| 507 | } |
| 508 | |
| 509 | /** |
| 510 | * Updates the current time range in the time range histogram and full range histogram. |
| 511 | * @param signal the signal to process |
| 512 | */ |
| 513 | @TmfSignalHandler |
| 514 | public void timeRangeUpdated(TmfRangeSynchSignal signal) { |
| 515 | // Because this can't happen :-) |
| 516 | assert (signal != null); |
| 517 | |
| 518 | if (fTrace != null) { |
| 519 | // Validate the time range |
| 520 | TmfTimeRange range = signal.getCurrentRange().getIntersection(fTrace.getTimeRange()); |
| 521 | if (range == null) { |
| 522 | return; |
| 523 | } |
| 524 | |
| 525 | // Update the time range |
| 526 | fWindowStartTime = range.getStartTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue(); |
| 527 | fWindowEndTime = range.getEndTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue(); |
| 528 | fWindowSpan = fWindowEndTime - fWindowStartTime; |
| 529 | |
| 530 | // Notify the relevant widgets |
| 531 | sendTimeRangeRequest(fWindowStartTime, fWindowEndTime); |
| 532 | fFullTraceHistogram.setTimeRange(fWindowStartTime, fWindowSpan); |
| 533 | |
| 534 | fTimeSpanControl.setValue(fWindowSpan); |
| 535 | } |
| 536 | } |
| 537 | |
| 538 | // ------------------------------------------------------------------------ |
| 539 | // Helper functions |
| 540 | // ------------------------------------------------------------------------ |
| 541 | |
| 542 | private void initializeHistograms() { |
| 543 | TmfTimeRange fullRange = updateTraceTimeRange(); |
| 544 | long timestamp = fTrace.getCurrentTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue(); |
| 545 | long startTime = fTrace.getCurrentRange().getStartTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue(); |
| 546 | long duration = fTrace.getCurrentRange().getEndTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue() - startTime; |
| 547 | |
| 548 | if ((fTimeRangeRequest != null) && !fTimeRangeRequest.isCompleted()) { |
| 549 | fTimeRangeRequest.cancel(); |
| 550 | } |
| 551 | fTimeRangeHistogram.clear(); |
| 552 | fTimeRangeHistogram.setFullRange(fTraceStartTime, fTraceEndTime); |
| 553 | fTimeRangeHistogram.setTimeRange(startTime, duration); |
| 554 | fTimeRangeHistogram.setCurrentEvent(timestamp); |
| 555 | |
| 556 | if ((fFullTraceRequest != null) && !fFullTraceRequest.isCompleted()) { |
| 557 | fFullTraceRequest.cancel(); |
| 558 | } |
| 559 | fFullTraceHistogram.clear(); |
| 560 | fFullTraceHistogram.setFullRange(fTraceStartTime, fTraceEndTime); |
| 561 | fFullTraceHistogram.setTimeRange(startTime, duration); |
| 562 | fFullTraceHistogram.setCurrentEvent(timestamp); |
| 563 | |
| 564 | fWindowStartTime = startTime; |
| 565 | fWindowSpan = duration; |
| 566 | fWindowEndTime = startTime + duration; |
| 567 | |
| 568 | fCurrentTimestamp = timestamp; |
| 569 | fCurrentEventTimeControl.setValue(fCurrentTimestamp); |
| 570 | |
| 571 | fTimeSpanControl.setValue(duration); |
| 572 | |
| 573 | if (!fullRange.equals(TmfTimeRange.NULL_RANGE)) { |
| 574 | sendTimeRangeRequest(startTime, startTime + duration); |
| 575 | sendFullRangeRequest(fullRange); |
| 576 | } |
| 577 | } |
| 578 | |
| 579 | private TmfTimeRange updateTraceTimeRange() { |
| 580 | fTraceStartTime = 0L; |
| 581 | fTraceEndTime = 0L; |
| 582 | |
| 583 | TmfTimeRange timeRange = fTrace.getTimeRange(); |
| 584 | if (!timeRange.equals(TmfTimeRange.NULL_RANGE)) { |
| 585 | fTraceStartTime = timeRange.getStartTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue(); |
| 586 | fTraceEndTime = timeRange.getEndTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue(); |
| 587 | } |
| 588 | return timeRange; |
| 589 | } |
| 590 | |
| 591 | private void sendTimeRangeRequest(long startTime, long endTime) { |
| 592 | if ((fTimeRangeRequest != null) && !fTimeRangeRequest.isCompleted()) { |
| 593 | fTimeRangeRequest.cancel(); |
| 594 | } |
| 595 | TmfTimestamp startTS = new TmfTimestamp(startTime, ITmfTimestamp.NANOSECOND_SCALE); |
| 596 | TmfTimestamp endTS = new TmfTimestamp(endTime, ITmfTimestamp.NANOSECOND_SCALE); |
| 597 | TmfTimeRange timeRange = new TmfTimeRange(startTS, endTS); |
| 598 | |
| 599 | fTimeRangeHistogram.clear(); |
| 600 | fTimeRangeHistogram.setFullRange(fTraceStartTime, fTraceEndTime); |
| 601 | fTimeRangeHistogram.setTimeRange(startTime, endTime - startTime); |
| 602 | |
| 603 | int cacheSize = fTrace.getCacheSize(); |
| 604 | fTimeRangeRequest = new HistogramRequest(fTimeRangeHistogram.getDataModel(), timeRange, 0, TmfDataRequest.ALL_DATA, cacheSize, ExecutionType.FOREGROUND); |
| 605 | fTrace.sendRequest(fTimeRangeRequest); |
| 606 | } |
| 607 | |
| 608 | private void sendFullRangeRequest(TmfTimeRange fullRange) { |
| 609 | if ((fFullTraceRequest != null) && !fFullTraceRequest.isCompleted()) { |
| 610 | fFullTraceRequest.cancel(); |
| 611 | } |
| 612 | int cacheSize = fTrace.getCacheSize(); |
| 613 | fFullTraceRequest = new HistogramRequest(fFullTraceHistogram.getDataModel(), fullRange, (int) fFullTraceHistogram.fDataModel.getNbEvents(), |
| 614 | TmfDataRequest.ALL_DATA, cacheSize, ExecutionType.BACKGROUND); |
| 615 | fTrace.sendRequest(fFullTraceRequest); |
| 616 | } |
| 617 | |
| 618 | } |