org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/project/wizards/importtrace/BatchImportTraceWizard.java

   1 /*******************************************************************************
   2  * Copyright (c) 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  *   Matthew Khouzam - Initial API and implementation
  11  *   Marc-Andre Laperle - Log some exceptions
  12  *******************************************************************************/
  13
  14 package org.eclipse.linuxtools.tmf.ui.project.wizards.importtrace;
  15
  16 import java.io.File;
  17 import java.io.FileInputStream;
  18 import java.lang.reflect.InvocationTargetException;
  19 import java.util.ArrayList;
  20 import java.util.Collections;
  21 import java.util.Comparator;
  22 import java.util.HashMap;
  23 import java.util.HashSet;
  24 import java.util.Iterator;
  25 import java.util.List;
  26 import java.util.Map;
  27 import java.util.Set;
  28 import java.util.TreeSet;
  29 import java.util.concurrent.BlockingQueue;
  30
  31 import org.eclipse.core.resources.IFile;
  32 import org.eclipse.core.resources.IFolder;
  33 import org.eclipse.core.resources.IResource;
  34 import org.eclipse.core.resources.ResourcesPlugin;
  35 import org.eclipse.core.runtime.CoreException;
  36 import org.eclipse.core.runtime.IPath;
  37 import org.eclipse.core.runtime.IProgressMonitor;
  38 import org.eclipse.core.runtime.IStatus;
  39 import org.eclipse.core.runtime.NullProgressMonitor;
  40 import org.eclipse.core.runtime.Path;
  41 import org.eclipse.core.runtime.Status;
  42 import org.eclipse.core.runtime.SubMonitor;
  43 import org.eclipse.jface.dialogs.ErrorDialog;
  44 import org.eclipse.jface.dialogs.IDialogSettings;
  45 import org.eclipse.jface.operation.IRunnableWithProgress;
  46 import org.eclipse.jface.viewers.IStructuredSelection;
  47 import org.eclipse.jface.wizard.IWizardPage;
  48 import org.eclipse.jface.wizard.Wizard;
  49 import org.eclipse.jface.wizard.WizardDialog;
  50 import org.eclipse.linuxtools.internal.tmf.ui.Activator;
  51 import org.eclipse.linuxtools.internal.tmf.ui.project.model.TmfImportHelper;
  52 import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace;
  53 import org.eclipse.linuxtools.tmf.ui.project.model.TmfProjectElement;
  54 import org.eclipse.linuxtools.tmf.ui.project.model.TmfProjectRegistry;
  55 import org.eclipse.linuxtools.tmf.ui.project.model.TmfTraceElement;
  56 import org.eclipse.linuxtools.tmf.ui.project.model.TmfTraceFolder;
  57 import org.eclipse.linuxtools.tmf.ui.project.model.TmfTraceType;
  58 import org.eclipse.linuxtools.tmf.ui.project.model.TraceTypeHelper;
  59 import org.eclipse.linuxtools.tmf.ui.project.model.TraceValidationHelper;
  60 import org.eclipse.ui.IImportWizard;
  61 import org.eclipse.ui.IWorkbench;
  62 import org.eclipse.ui.dialogs.IOverwriteQuery;
  63 import org.eclipse.ui.wizards.datatransfer.FileSystemStructureProvider;
  64 import org.eclipse.ui.wizards.datatransfer.ImportOperation;
  65
  66 /**
  67  * Batch Import trace wizard.
  68  *
  69  * @author Matthew Khouzam
  70  * @since 2.0
  71  */
  72 public class BatchImportTraceWizard extends Wizard implements IImportWizard {
  73
  74     private static final int WIN_HEIGHT = 400;
  75     private static final int WIN_WIDTH = 800;
  76     private static final Status CANCEL_STATUS = new Status(IStatus.CANCEL, Activator.PLUGIN_ID, ""); //$NON-NLS-1$
  77     private static final int TOTALWORK = 65536;
  78     // -----------------
  79     // Constants
  80     // -----------------
  81
  82     private static final int MAX_FILES = TOTALWORK - 1;
  83     private static final String BATCH_IMPORT_WIZARD = "BatchImportTraceWizard"; //$NON-NLS-1$
  84
  85     // ------------------
  86     // Fields
  87     // ------------------
  88
  89     private IWizardPage fSelectDirectoriesPage;
  90     private ImportTraceWizardScanPage fScanPage;
  91     private IWizardPage fSelectTypePage;
  92     private IWizardPage fOptions;
  93
  94     private final List<String> fTraceTypesToScan = new ArrayList<>();
  95     private final Set<String> fParentFilesToScan = new HashSet<>();
  96
  97     private ImportTraceContentProvider fScannedTraces = new ImportTraceContentProvider(fTraceTypesToScan, fParentFilesToScan);
  98
  99     private final Map<TraceValidationHelper, Boolean> fResults = new HashMap<>();
 100     private boolean fOverwrite = true;
 101     private boolean fLinked = true;
 102
 103     private BlockingQueue<TraceValidationHelper> fTracesToScan;
 104     private final Set<FileAndName> fTraces = new TreeSet<>();
 105
 106     private Map<String, Set<String>> fParentFiles = new HashMap<>();
 107
 108     // Target import directory ('Traces' folder)
 109     private IFolder fTargetFolder;
 110
 111     /**
 112      * Returns the ScannedTraces model
 113      *
 114      * @return the ScannedTraces model
 115      */
 116     public ImportTraceContentProvider getScannedTraces() {
 117         return fScannedTraces;
 118     }
 119
 120     /**
 121      * Constructor
 122      */
 123     public BatchImportTraceWizard() {
 124         IDialogSettings workbenchSettings = Activator.getDefault().getDialogSettings();
 125         IDialogSettings section = workbenchSettings.getSection(BATCH_IMPORT_WIZARD);
 126         if (section == null) {
 127             section = workbenchSettings.addNewSection(BATCH_IMPORT_WIZARD);
 128         }
 129         setDialogSettings(section);
 130         setNeedsProgressMonitor(true);
 131     }
 132
 133     @Override
 134     public void init(IWorkbench workbench, IStructuredSelection selection) {
 135
 136         fSelectDirectoriesPage = new ImportTraceWizardSelectDirectoriesPage(workbench, selection);
 137         fScanPage = new ImportTraceWizardScanPage(workbench, selection);
 138         fSelectTypePage = new ImportTraceWizardSelectTraceTypePage(workbench, selection);
 139         fOptions = new ImportTraceWizardPageOptions(workbench, selection);
 140         // keep in case it's called later
 141         Iterator<?> iter = selection.iterator();
 142         while (iter.hasNext()) {
 143             Object selected = iter.next();
 144             if (selected instanceof TmfTraceFolder) {
 145                 fTargetFolder = ((TmfTraceFolder) selected).getResource();
 146                 break;
 147             }
 148         }
 149         fResults.clear();
 150     }
 151
 152     @Override
 153     public void addPages() {
 154         addPage(fSelectTypePage);
 155         addPage(fSelectDirectoriesPage);
 156         addPage(fScanPage);
 157         addPage(fOptions);
 158         final WizardDialog container = (WizardDialog) getContainer();
 159         if (container != null) {
 160             container.setPageSize(WIN_WIDTH, WIN_HEIGHT);
 161         }
 162     }
 163
 164     /**
 165      * Add a file to scan
 166      *
 167      * @param fileName
 168      *            the file to scan
 169      */
 170     public void addFileToScan(final String fileName) {
 171         String absolutePath = new File(fileName).getAbsolutePath();
 172         if (!fParentFiles.containsKey(absolutePath)) {
 173             fParentFiles.put(absolutePath, new HashSet<String>());
 174             startUpdateTask(Messages.BatchImportTraceWizardAdd + ' ' + absolutePath, absolutePath);
 175
 176         }
 177
 178     }
 179
 180     /**
 181      * Remove files from selection
 182      *
 183      * @param fileName
 184      *            the name of the file to remove
 185      */
 186     public void removeFile(final String fileName) {
 187         fParentFiles.remove(fileName);
 188         fParentFilesToScan.remove(fileName);
 189         startUpdateTask(Messages.BatchImportTraceWizardRemove + ' ' + fileName, null);
 190     }
 191
 192     private void startUpdateTask(final String taskName, final String fileAbsolutePath) {
 193         try {
 194             this.getContainer().run(true, true, new IRunnableWithProgress() {
 195
 196                 @Override
 197                 public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
 198                     synchronized (BatchImportTraceWizard.this) { // this should
 199                                                                  // only run one
 200                                                                  // at a time
 201                         SubMonitor sm;
 202                         sm = SubMonitor.convert(monitor);
 203                         sm.setTaskName(taskName);
 204                         sm.setWorkRemaining(TOTALWORK);
 205                         updateFiles(sm, fileAbsolutePath);
 206                         sm.done();
 207                     }
 208                 }
 209             });
 210         } catch (InvocationTargetException e) {
 211             Activator.getDefault().logError(Messages.ImportTraceWizardImportProblem, e);
 212         } catch (InterruptedException e) {
 213         }
 214     }
 215
 216     /**
 217      * The set of names of the selected files
 218      *
 219      * @return the set of names of the selected files
 220      */
 221     public Set<String> getFileNames() {
 222         return fParentFilesToScan;
 223     }
 224
 225     /**
 226      * Reset the trace list to import
 227      */
 228     public void clearTraces() {
 229         fTraces.clear();
 230     }
 231
 232     @Override
 233     public boolean performFinish() {
 234         if (fTraces.isEmpty()) {
 235             return false;
 236         }
 237         // if this turns out to be too slow, put in a progress monitor. Does not
 238         // appear to be slow for the moment.
 239         boolean success = importTraces();
 240         return success;
 241     }
 242
 243     private boolean importTraces() {
 244         boolean success = false;
 245         IOverwriteQuery overwriteQuery = new IOverwriteQuery() {
 246             @Override
 247             public String queryOverwrite(String file) {
 248                 return fOverwrite ? IOverwriteQuery.ALL : IOverwriteQuery.NO_ALL;
 249             }
 250         };
 251         FileSystemStructureProvider fileSystemStructureProvider = FileSystemStructureProvider.INSTANCE;
 252
 253         for (FileAndName traceToImport : fTraces) {
 254             try {
 255                 if (fLinked) {
 256                     if (TmfImportHelper.createLink(fTargetFolder, Path.fromOSString(traceToImport.getFile().getAbsolutePath()), traceToImport.getName()) == null) {
 257                         success = false;
 258                     }
 259                     else {
 260                         success = setTraceType(traceToImport).isOK();
 261                     }
 262                 }
 263                 else {
 264                     List<File> subList = new ArrayList<>();
 265                     IPath path = fTargetFolder.getFullPath();
 266                     File parentFile = traceToImport.getFile();
 267                     final boolean isFile = parentFile.isFile();
 268                     if (isFile) {
 269                         IFile resource = ResourcesPlugin.getWorkspace().getRoot().getFile(path.append(traceToImport.getName()));
 270                         if (fOverwrite || !resource.exists()) {
 271                             subList.add(parentFile);
 272                             parentFile = parentFile.getParentFile();
 273                             try (final FileInputStream source = new FileInputStream(traceToImport.getFile());) {
 274                                 if (resource.exists()) {
 275                                     resource.delete(IResource.FORCE, new NullProgressMonitor());
 276                                 }
 277                                 resource.create(source, true, new NullProgressMonitor());
 278                             }
 279                             setTraceType(traceToImport);
 280                             success = true;
 281                         }
 282                     } else {
 283                         // Add trace directory
 284                         subList.add(traceToImport.getFile());
 285                         // Add all files in trace directory
 286                         File[] fileList = traceToImport.getFile().listFiles();
 287                         for (File child : fileList) {
 288                             subList.add(child);
 289                         }
 290
 291                         Collections.sort(subList, new Comparator<File>() {
 292                             @Override
 293                             public int compare(File o1, File o2) {
 294                                 return o1.getAbsolutePath().compareTo(o2.getAbsolutePath());
 295                             }
 296                         });
 297                         ImportOperation operation = new ImportOperation(
 298                                 path,
 299                                 parentFile.getParentFile(),
 300                                 fileSystemStructureProvider,
 301                                 overwriteQuery,
 302                                 subList);
 303                         operation.setContext(getShell());
 304                         operation.setCreateContainerStructure(false);
 305                         if (executeImportOperation(operation)) {
 306                             setTraceType(traceToImport);
 307                             success = true;
 308                         }
 309                     }
 310
 311                 }
 312             } catch (Exception e) {
 313             }
 314         }
 315         return success;
 316     }
 317
 318     private IStatus setTraceType(FileAndName traceToImport) {
 319         IStatus validate = Status.OK_STATUS;
 320         IPath path = fTargetFolder.getFullPath().append(traceToImport.getName());
 321         IResource resource = ResourcesPlugin.getWorkspace().getRoot().findMember(path);
 322         if (resource != null) {
 323             try {
 324                 // Set the trace type for this resource
 325                 String traceTypeId = traceToImport.getTraceTypeId();
 326                 TraceTypeHelper traceType = TmfTraceType.getInstance().getTraceType(traceTypeId);
 327                 if (traceType != null) {
 328                     TmfTraceType.setTraceType(path, traceType);
 329                 }
 330
 331                 TmfProjectElement tmfProject =
 332                         TmfProjectRegistry.getProject(resource.getProject());
 333                 if (tmfProject != null) {
 334                     final TmfTraceFolder tracesFolder = tmfProject.getTracesFolder();
 335                     tracesFolder.refresh();
 336
 337                     List<TmfTraceElement> traces = tracesFolder.getTraces();
 338                     boolean found = false;
 339                     for (TmfTraceElement traceElement : traces) {
 340                         if (traceElement.getName().equals(resource.getName())) {
 341                             traceElement.refreshTraceType();
 342                             found = true;
 343                             break;
 344                         }
 345                     }
 346                     if (!found) {
 347                         TmfTraceElement te = new TmfTraceElement(traceToImport.getName(), resource, tracesFolder);
 348                         te.refreshTraceType();
 349                         traces = tracesFolder.getTraces();
 350                         for (TmfTraceElement traceElement : traces) {
 351                             if (traceElement.getName().equals(resource.getName())) {
 352                                 traceElement.refreshTraceType();
 353                                 ITmfTrace tmfTrace = null;
 354                                 try {
 355                                     tmfTrace = traceElement.instantiateTrace();
 356                                     if (tmfTrace != null) {
 357                                         validate = tmfTrace.validate(tmfProject.getResource(), traceElement.getLocation().getPath());
 358                                     } else {
 359                                         return new Status(IStatus.ERROR, traceElement.getName(), "File does not exist : " + traceElement.getLocation().getPath()); //$NON-NLS-1$
 360                                     }
 361                                 } finally {
 362                                     if (tmfTrace != null) {
 363                                         tmfTrace.dispose();
 364                                     }
 365                                 }
 366                                 break;
 367                             }
 368                         }
 369
 370                     }
 371
 372                 }
 373             } catch (CoreException e) {
 374                 Activator.getDefault().logError(Messages.BatchImportTraceWizardErrorImportingTraceResource
 375                         + ' ' + resource.getName(), e);
 376             }
 377         }
 378         return validate;
 379     }
 380
 381     @Override
 382     public boolean canFinish() {
 383         return super.canFinish() && hasTracesToImport() && !hasConflicts() && (fTargetFolder != null);
 384     }
 385
 386     /**
 387      * Returns if a trace to import is selected
 388      *
 389      * @return if there are traces to import
 390      */
 391     public boolean hasTracesToImport() {
 392         return fTraces.size() > 0;
 393     }
 394
 395     /**
 396      * Reset the files to scan
 397      */
 398     public void clearFilesToScan() {
 399         fTracesToScan.clear();
 400     }
 401
 402     /**
 403      * Set the trace types to scan
 404      *
 405      * @param tracesToScan
 406      *            a list of trace types to scan for
 407      */
 408     public void setTraceTypesToScan(List<String> tracesToScan) {
 409         // intersection to know if there's a diff.
 410         // if there's a diff, we need to re-enque everything
 411         List<String> added = new ArrayList<>();
 412         for (String traceLoc : tracesToScan) {
 413             if (!fTraceTypesToScan.contains(traceLoc)) {
 414                 added.add(traceLoc);
 415             }
 416         }
 417         fTraceTypesToScan.clear();
 418         fTraceTypesToScan.addAll(tracesToScan);
 419         updateTracesToScan(added);
 420     }
 421
 422     /**
 423      * Get the trace types to scan
 424      *
 425      * @return a list of traces to Scan for
 426      */
 427     public List<String> getTraceTypesToScan() {
 428         return fTraceTypesToScan;
 429     }
 430
 431     /**
 432      * Add files to Import
 433      *
 434      * @param element
 435      *            add the file and tracetype to import
 436      */
 437     public void addFileToImport(FileAndName element) {
 438         fTraces.add(element);
 439         updateConflicts();
 440     }
 441
 442     /**
 443      * Remove the file to scan
 444      *
 445      * @param element
 446      *            the element to remove
 447      */
 448     public void removeFileToImport(FileAndName element) {
 449         fTraces.remove(element);
 450         element.setConflictingName(false);
 451         updateConflicts();
 452     }
 453
 454     /**
 455      * Updates the trace to see if there are conflicts.
 456      */
 457     public void updateConflicts() {
 458         final FileAndName[] fChildren = fTraces.toArray(new FileAndName[0]);
 459         for (int i = 0; i < fChildren.length; i++) {
 460             fChildren[i].setConflictingName(false);
 461         }
 462         for (int i = 1; i < fChildren.length; i++) {
 463             for (int j = 0; j < i; j++) {
 464                 if (fChildren[i].getName().equals(fChildren[j].getName())) {
 465                     fChildren[i].setConflictingName(true);
 466                     fChildren[j].setConflictingName(true);
 467                 }
 468             }
 469         }
 470         getContainer().updateButtons();
 471     }
 472
 473     /**
 474      * Is there a name conflict
 475      */
 476     boolean hasConflicts() {
 477         boolean conflict = false;
 478         for (FileAndName child : fTraces) {
 479             conflict |= child.isConflictingName();
 480         }
 481         return conflict;
 482     }
 483
 484     private boolean executeImportOperation(ImportOperation op) {
 485         initializeOperation(op);
 486
 487         try {
 488             getContainer().run(true, true, op);
 489         } catch (InterruptedException e) {
 490             return false;
 491         } catch (InvocationTargetException e) {
 492             Activator.getDefault().logError(Messages.ImportTraceWizardImportProblem, e);
 493             return false;
 494         }
 495
 496         IStatus status = op.getStatus();
 497         if (!status.isOK()) {
 498             ErrorDialog.openError(getContainer().getShell(), Messages.ImportTraceWizardImportProblem, null, status);
 499             return false;
 500         }
 501
 502         return true;
 503     }
 504
 505     private static void initializeOperation(ImportOperation op) {
 506         op.setCreateContainerStructure(false);
 507         op.setOverwriteResources(false);
 508         op.setVirtualFolders(false);
 509     }
 510
 511     /**
 512      * Override existing resources
 513      *
 514      * @param selection
 515      *            true or false
 516      */
 517     public void setOverwrite(boolean selection) {
 518         fOverwrite = selection;
 519     }
 520
 521     /**
 522      * Is the trace linked?
 523      *
 524      * @param isLink
 525      *            true or false
 526      */
 527     public void setLinked(boolean isLink) {
 528         fLinked = isLink;
 529     }
 530
 531     /**
 532      * @param tracesToScan
 533      *            sets the common traces to scan
 534      */
 535     public void setTracesToScan(BlockingQueue<TraceValidationHelper> tracesToScan) {
 536         fTracesToScan = tracesToScan;
 537     }
 538
 539     /**
 540      * @param traceToScan
 541      *            The trace to scan
 542      * @return if the trace has been scanned yet or not
 543      */
 544     public boolean hasScanned(TraceValidationHelper traceToScan) {
 545         return fResults.containsKey(traceToScan);
 546     }
 547
 548     /**
 549      * Add a result to a cache
 550      *
 551      * @param traceToScan
 552      *            The trace that has been scanned
 553      * @param validate
 554      *            if the trace is valid
 555      */
 556     public void addResult(TraceValidationHelper traceToScan, boolean validate) {
 557         fResults.put(traceToScan, validate);
 558     }
 559
 560     /**
 561      * Gets if the trace has been scanned or not
 562      *
 563      * @param traceToScan
 564      *            the scanned trace
 565      * @return whether it passes or not
 566      */
 567     public Boolean getResult(TraceValidationHelper traceToScan) {
 568         return fResults.get(traceToScan);
 569     }
 570
 571     /**
 572      * Returns the amount of files scanned
 573      *
 574      * @return the amount of files scanned
 575      */
 576     public int getNumberOfResults() {
 577         return fResults.size();
 578     }
 579
 580     private void updateTracesToScan(final List<String> added) {
 581         // Treeset is used instead of a hashset since the traces should be read
 582         // in the order they were added.
 583         final Set<String> filesToScan = new TreeSet<>();
 584         for (String name : fParentFiles.keySet()) {
 585             filesToScan.addAll(fParentFiles.get(name));
 586         }
 587         IProgressMonitor pm = new NullProgressMonitor();
 588         try {
 589             updateScanQueue(pm, filesToScan, added);
 590         } catch (InterruptedException e) {
 591         }
 592
 593     }
 594
 595     /*
 596      * I am a job. Make me work
 597      */
 598     private synchronized IStatus updateFiles(IProgressMonitor monitor, String traceToScanAbsPath) {
 599         final Set<String> filesToScan = new TreeSet<>();
 600
 601         int workToDo = 1;
 602         for (String name : fParentFiles.keySet()) {
 603
 604             final File file = new File(name);
 605             final File[] listFiles = file.listFiles();
 606             if (listFiles != null) {
 607                 workToDo += listFiles.length;
 608             }
 609         }
 610         int step = TOTALWORK / workToDo;
 611         try {
 612             for (String name : fParentFiles.keySet()) {
 613                 final File fileToAdd = new File(name);
 614                 final Set<String> parentFilesToScan = fParentFiles.get(fileToAdd.getAbsolutePath());
 615                 recurse(parentFilesToScan, fileToAdd, monitor, step);
 616                 if (monitor.isCanceled()) {
 617                     fParentFilesToScan.remove(traceToScanAbsPath);
 618                     fParentFiles.remove(traceToScanAbsPath);
 619                     return CANCEL_STATUS;
 620                 }
 621             }
 622             filesToScan.clear();
 623             for (String name : fParentFiles.keySet()) {
 624                 filesToScan.addAll(fParentFiles.get(name));
 625                 fParentFilesToScan.add(name);
 626             }
 627             IStatus cancelled = updateScanQueue(monitor, filesToScan, fTraceTypesToScan);
 628             if (cancelled.matches(IStatus.CANCEL)) {
 629                 fParentFilesToScan.remove(traceToScanAbsPath);
 630                 fParentFiles.remove(traceToScanAbsPath);
 631             }
 632         } catch (InterruptedException e) {
 633             monitor.done();
 634             return new Status(IStatus.ERROR, Activator.PLUGIN_ID, e.getMessage(), e);
 635         }
 636
 637         monitor.done();
 638         return Status.OK_STATUS;
 639     }
 640
 641     private IStatus updateScanQueue(IProgressMonitor monitor, final Set<String> filesToScan, final List<String> traceTypes) throws InterruptedException {
 642         for (String fileToScan : filesToScan) {
 643             for (String traceCat : traceTypes) {
 644                 TraceValidationHelper tv = new TraceValidationHelper(fileToScan, traceCat);
 645                 // for thread safety, keep checks in this order.
 646                 if (!fResults.containsKey(tv)) {
 647                     if (!fTracesToScan.contains(tv)) {
 648                         fTracesToScan.put(tv);
 649                         monitor.subTask(tv.getTraceToScan());
 650                         if (monitor.isCanceled()) {
 651                             fScanPage.refresh();
 652                             return CANCEL_STATUS;
 653                         }
 654                     }
 655                 }
 656             }
 657         }
 658         fScanPage.refresh();
 659         return Status.OK_STATUS;
 660     }
 661
 662     private IStatus recurse(Set<String> filesToScan, File fileToAdd, IProgressMonitor monitor, int step) {
 663         final String absolutePath = fileToAdd.getAbsolutePath();
 664         if (!filesToScan.contains(absolutePath) && (filesToScan.size() < MAX_FILES)) {
 665             filesToScan.add(absolutePath);
 666             final File[] listFiles = fileToAdd.listFiles();
 667             if (null != listFiles) {
 668                 for (File child : listFiles) {
 669                     monitor.subTask(child.getName());
 670                     if (monitor.isCanceled()) {
 671                         return CANCEL_STATUS;
 672                     }
 673                     IStatus retVal = recurse(filesToScan, child, monitor);
 674                     if (retVal.matches(IStatus.CANCEL)) {
 675                         return retVal;
 676                     }
 677                     monitor.worked(step);
 678                 }
 679             }
 680         }
 681         return Status.OK_STATUS;
 682     }
 683
 684     private IStatus recurse(Set<String> filesToScan, File fileToAdd, IProgressMonitor monitor) {
 685         final String absolutePath = fileToAdd.getAbsolutePath();
 686         if (!filesToScan.contains(absolutePath) && (filesToScan.size() < MAX_FILES)) {
 687             filesToScan.add(absolutePath);
 688             final File[] listFiles = fileToAdd.listFiles();
 689             if (null != listFiles) {
 690                 for (File child : listFiles) {
 691                     if (monitor.isCanceled()) {
 692                         return CANCEL_STATUS;
 693                     }
 694                     IStatus retVal = recurse(filesToScan, child, monitor);
 695                     if (retVal.matches(IStatus.CANCEL)) {
 696                         return retVal;
 697                     }
 698                 }
 699             }
 700         }
 701         return Status.OK_STATUS;
 702     }
 703
 704     /**
 705      * Gets the folder in the resource (project)
 706      *
 707      * @param targetFolder
 708      *            the folder to import to
 709      */
 710     public void setTraceFolder(IFolder targetFolder) {
 711         fTargetFolder = targetFolder;
 712         if (this.getContainer() != null && this.getContainer().getCurrentPage() != null) {
 713             this.getContainer().updateButtons();
 714         }
 715     }
 716
 717     /**
 718      * Gets the target folder
 719      *
 720      * @return the target folder
 721      */
 722     public IFolder getTargetFolder() {
 723         return fTargetFolder;
 724     }
 725
 726 }