/** Tries to delete a folder containing an unremovable file. Works only for Windows. */
  public void testDeleteFolderWindows() {
    if (!isWindows()) return;

    IProject project = null;
    InputStream input = null;
    File projectRoot = null;
    try {
      IWorkspace workspace = getWorkspace();
      project = workspace.getRoot().getProject(getUniqueString());
      IFolder folder = project.getFolder("a_folder");
      IFile file1 = folder.getFile("file1.txt");
      IFile file3 = folder.getFile("file3.txt");

      ensureExistsInWorkspace(new IResource[] {file1, file3}, true);
      projectRoot = project.getLocation().toFile();

      // opens a file so it cannot be removed on Windows
      try {
        input = file1.getContents();
      } catch (CoreException ce) {
        ce.printStackTrace();
        fail("1.0");
      }

      try {
        folder.delete(IResource.FORCE, getMonitor());
        fail("2.0 - should have failed");
      } catch (CoreException ce) {
        // success - a file couldn't be removed
      }
      assertTrue("2.2", file1.exists());
      assertTrue("2.4", !file3.exists());
      assertTrue("2.5", folder.exists());
      assertTrue("2.7", folder.isSynchronized(IResource.DEPTH_INFINITE));

      assertClose(input);

      assertTrue("3.5", project.isSynchronized(IResource.DEPTH_INFINITE));
      try {
        folder.delete(IResource.FORCE, getMonitor());
      } catch (CoreException ce) {
        ce.printStackTrace();
        fail("4.0", ce);
      }
      assertTrue("5.1", !file1.exists());
      assertTrue("5.2", !folder.exists());
      assertTrue("5.3", file1.isSynchronized(IResource.DEPTH_INFINITE));
      assertTrue("5.4", folder.isSynchronized(IResource.DEPTH_INFINITE));
    } finally {
      try {
        assertClose(input);
      } finally {
        if (projectRoot != null) ensureDoesNotExistInFileSystem(projectRoot);
      }
    }
  }
  /** Tries to delete a folder containing an irremovable file. Works only for Linux with natives. */
  public void testDeleteFolderLinux() {
    if (!(Platform.getOS().equals(Platform.OS_LINUX))) return;

    IProject project = null;
    File projectRoot = null;
    IFolder subFolder = null;
    try {
      IWorkspace workspace = getWorkspace();
      project = workspace.getRoot().getProject(getUniqueString());
      IFolder folder = project.getFolder("a_folder");
      subFolder = folder.getFolder("sub-folder");
      IFile file1 = subFolder.getFile("file1.txt");
      IFile file3 = folder.getFile("file3.txt");

      ensureExistsInWorkspace(new IResource[] {file1, file3}, true);
      projectRoot = project.getLocation().toFile();

      // marks sub-folder as read-only so its files cannot be removed on Linux
      setReadOnly(subFolder, true);

      try {
        folder.delete(IResource.FORCE, getMonitor());
        fail("2.0 - should have failed");
      } catch (CoreException ce) {
        // success - a file couldn't be removed
      }
      assertTrue("2.2", file1.exists());
      assertTrue("2.3", subFolder.exists());
      assertTrue("2.4", !file3.exists());
      assertTrue("2.5", folder.exists());
      assertTrue("2.7", folder.isSynchronized(IResource.DEPTH_INFINITE));

      setReadOnly(subFolder, false);

      assertTrue("3.5", project.isSynchronized(IResource.DEPTH_INFINITE));
      try {
        folder.delete(IResource.FORCE, getMonitor());
      } catch (CoreException ce) {
        ce.printStackTrace();
        fail("4.0", ce);
      }
      assertTrue("5.1", !file1.exists());
      assertTrue("5.2", !subFolder.exists());
      assertTrue("5.3", !folder.exists());
      assertTrue("5.4", file1.isSynchronized(IResource.DEPTH_INFINITE));
      assertTrue("5.5", folder.isSynchronized(IResource.DEPTH_INFINITE));
    } finally {
      if (subFolder != null && subFolder.exists()) setReadOnly(subFolder, false);
      if (projectRoot != null) ensureDoesNotExistInFileSystem(projectRoot);
    }
  }
  protected boolean findSourceFiles(
      IResourceDelta sourceDelta, ClasspathMultiDirectory md, int segmentCount)
      throws CoreException {
    // When a package becomes a type or vice versa, expect 2 deltas,
    // one on the folder & one on the source file
    IResource resource = sourceDelta.getResource();
    // remember that if inclusion & exclusion patterns change then a full build is done
    boolean isExcluded =
        (md.exclusionPatterns != null || md.inclusionPatterns != null)
            && Util.isExcluded(resource, md.inclusionPatterns, md.exclusionPatterns);
    switch (resource.getType()) {
      case IResource.FOLDER:
        if (isExcluded && md.inclusionPatterns == null)
          return true; // no need to go further with this delta since its children cannot be
        // included

        switch (sourceDelta.getKind()) {
          case IResourceDelta.ADDED:
            if (!isExcluded) {
              IPath addedPackagePath = resource.getFullPath().removeFirstSegments(segmentCount);
              createFolder(
                  addedPackagePath, md.binaryFolder); // ensure package exists in the output folder
              // see if any known source file is from the same package... classpath already includes
              // new package
              if (this.sourceLocations.length > 1
                  && this.newState.isKnownPackage(addedPackagePath.toString())) {
                if (JavaBuilder.DEBUG)
                  System.out.println(
                      "Skipped dependents of added package " + addedPackagePath); // $NON-NLS-1$
              } else {
                if (JavaBuilder.DEBUG)
                  System.out.println("Found added package " + addedPackagePath); // $NON-NLS-1$
                addDependentsOf(addedPackagePath, true);
              }
            }
            // $FALL-THROUGH$ collect all the source files
          case IResourceDelta.CHANGED:
            IResourceDelta[] children = sourceDelta.getAffectedChildren();
            for (int i = 0, l = children.length; i < l; i++)
              if (!findSourceFiles(children[i], md, segmentCount)) return false;
            return true;
          case IResourceDelta.REMOVED:
            if (isExcluded) {
              // since this folder is excluded then there is nothing to delete (from this md), but
              // must walk any included subfolders
              children = sourceDelta.getAffectedChildren();
              for (int i = 0, l = children.length; i < l; i++)
                if (!findSourceFiles(children[i], md, segmentCount)) return false;
              return true;
            }
            IPath removedPackagePath = resource.getFullPath().removeFirstSegments(segmentCount);
            if (this.sourceLocations.length > 1) {
              for (int i = 0, l = this.sourceLocations.length; i < l; i++) {
                if (this.sourceLocations[i].sourceFolder.getFolder(removedPackagePath).exists()) {
                  // only a package fragment was removed, same as removing multiple source files
                  createFolder(
                      removedPackagePath,
                      md.binaryFolder); // ensure package exists in the output folder
                  IResourceDelta[] removedChildren = sourceDelta.getAffectedChildren();
                  for (int j = 0, m = removedChildren.length; j < m; j++)
                    if (!findSourceFiles(removedChildren[j], md, segmentCount)) return false;
                  return true;
                }
              }
            }
            if ((sourceDelta.getFlags() & IResourceDelta.MOVED_TO) != 0) {
              // same idea as moving a source file
              // see bug 163200
              IResource movedFolder =
                  this.javaBuilder.workspaceRoot.getFolder(sourceDelta.getMovedToPath());
              JavaBuilder.removeProblemsAndTasksFor(movedFolder);
            }
            IFolder removedPackageFolder = md.binaryFolder.getFolder(removedPackagePath);
            if (removedPackageFolder.exists()) removedPackageFolder.delete(IResource.FORCE, null);
            // add dependents even when the package thinks it does not exist to be on the safe side
            if (JavaBuilder.DEBUG)
              System.out.println("Found removed package " + removedPackagePath); // $NON-NLS-1$
            addDependentsOf(removedPackagePath, true);
            this.newState.removePackage(sourceDelta);
        }
        return true;
      case IResource.FILE:
        if (isExcluded) return true;

        String resourceName = resource.getName();
        // GROOVY start
        // determine if this is a Groovy project
        final boolean isInterestingProject =
            LanguageSupportFactory.isInterestingProject(this.javaBuilder.getProject());
        // GROOVY end

        // GROOVY start
        /* old {
        if (org.eclipse.jdt.internal.core.util.Util.isJavaLikeFileName(resourceName)) {
        } new */
        // GRECLIPSE-404 must call 'isJavaLikeFile' directly in order to make the Scala-Eclipse
        // plugin's weaving happy
        if ((!isInterestingProject
                && org.eclipse.jdt.internal.core.util.Util.isJavaLikeFileName(resourceName)
                && !LanguageSupportFactory.isInterestingSourceFile(resourceName))
            || (isInterestingProject
                && LanguageSupportFactory.isSourceFile(resourceName, isInterestingProject))) {
          // GROOVY end
          IPath typePath =
              resource.getFullPath().removeFirstSegments(segmentCount).removeFileExtension();
          String typeLocator = resource.getProjectRelativePath().toString();
          switch (sourceDelta.getKind()) {
            case IResourceDelta.ADDED:
              if (JavaBuilder.DEBUG)
                System.out.println("Compile this added source file " + typeLocator); // $NON-NLS-1$
              this.sourceFiles.add(new SourceFile((IFile) resource, md, true));
              String typeName = typePath.toString();
              if (!this.newState.isDuplicateLocator(
                  typeName, typeLocator)) { // adding dependents results in 2 duplicate errors
                if (JavaBuilder.DEBUG)
                  System.out.println("Found added source file " + typeName); // $NON-NLS-1$
                addDependentsOf(typePath, true);
              }
              return true;
            case IResourceDelta.REMOVED:
              char[][] definedTypeNames = this.newState.getDefinedTypeNamesFor(typeLocator);
              if (definedTypeNames == null) { // defined a single type matching typePath
                removeClassFile(typePath, md.binaryFolder);
                if ((sourceDelta.getFlags() & IResourceDelta.MOVED_TO) != 0) {
                  // remove problems and tasks for a compilation unit that is being moved (to
                  // another package or renamed)
                  // if the target file is a compilation unit, the new cu will be recompiled
                  // if the target file is a non-java resource, then markers are removed
                  // see bug 2857
                  IResource movedFile =
                      this.javaBuilder.workspaceRoot.getFile(sourceDelta.getMovedToPath());
                  JavaBuilder.removeProblemsAndTasksFor(movedFile);
                }
              } else {
                if (JavaBuilder.DEBUG)
                  System.out.println(
                      "Found removed source file " + typePath.toString()); // $NON-NLS-1$
                addDependentsOf(
                    typePath,
                    true); // add dependents of the source file since it may be involved in a name
                // collision
                if (definedTypeNames.length
                    > 0) { // skip it if it failed to successfully define a type
                  IPath packagePath = typePath.removeLastSegments(1);
                  for (int i = 0, l = definedTypeNames.length; i < l; i++)
                    removeClassFile(
                        packagePath.append(new String(definedTypeNames[i])), md.binaryFolder);
                }
              }
              this.newState.removeLocator(typeLocator);
              return true;
            case IResourceDelta.CHANGED:
              if ((sourceDelta.getFlags() & IResourceDelta.CONTENT) == 0
                  && (sourceDelta.getFlags() & IResourceDelta.ENCODING) == 0)
                return true; // skip it since it really isn't changed
              if (JavaBuilder.DEBUG)
                System.out.println(
                    "Compile this changed source file " + typeLocator); // $NON-NLS-1$
              this.sourceFiles.add(new SourceFile((IFile) resource, md, true));
          }
          return true;
        } else if (org.eclipse.jdt.internal.compiler.util.Util.isClassFileName(resourceName)) {
          // perform full build if a managed class file has been changed
          if (this.makeOutputFolderConsistent) {
            IPath typePath =
                resource.getFullPath().removeFirstSegments(segmentCount).removeFileExtension();
            if (this.newState.isKnownType(typePath.toString())) {
              if (JavaBuilder.DEBUG)
                System.out.println(
                    "MUST DO FULL BUILD. Found change to class file " + typePath); // $NON-NLS-1$
              return false;
            }
          }
          return true;
        } else if (md.hasIndependentOutputFolder) {
          if (this.javaBuilder.filterExtraResource(resource)) return true;

          // copy all other resource deltas to the output folder
          IPath resourcePath = resource.getFullPath().removeFirstSegments(segmentCount);
          IResource outputFile = md.binaryFolder.getFile(resourcePath);
          switch (sourceDelta.getKind()) {
            case IResourceDelta.ADDED:
              if (outputFile.exists()) {
                if (JavaBuilder.DEBUG)
                  System.out.println("Deleting existing file " + resourcePath); // $NON-NLS-1$
                outputFile.delete(IResource.FORCE, null);
              }
              if (JavaBuilder.DEBUG)
                System.out.println("Copying added file " + resourcePath); // $NON-NLS-1$
              createFolder(
                  resourcePath.removeLastSegments(1),
                  md.binaryFolder); // ensure package exists in the output folder
              copyResource(resource, outputFile);
              return true;
            case IResourceDelta.REMOVED:
              if (outputFile.exists()) {
                if (JavaBuilder.DEBUG)
                  System.out.println("Deleting removed file " + resourcePath); // $NON-NLS-1$
                outputFile.delete(IResource.FORCE, null);
              }
              return true;
            case IResourceDelta.CHANGED:
              if ((sourceDelta.getFlags() & IResourceDelta.CONTENT) == 0
                  && (sourceDelta.getFlags() & IResourceDelta.ENCODING) == 0)
                return true; // skip it since it really isn't changed
              if (outputFile.exists()) {
                if (JavaBuilder.DEBUG)
                  System.out.println("Deleting existing file " + resourcePath); // $NON-NLS-1$
                outputFile.delete(IResource.FORCE, null);
              }
              if (JavaBuilder.DEBUG)
                System.out.println("Copying changed file " + resourcePath); // $NON-NLS-1$
              createFolder(
                  resourcePath.removeLastSegments(1),
                  md.binaryFolder); // ensure package exists in the output folder
              copyResource(resource, outputFile);
          }
          return true;
        }
    }
    return true;
  }
  private void createProject(IFeatureModel model, IProgressMonitor monitor) throws CoreException {
    String name = model.getFeature().getId();

    IFeaturePlugin[] plugins = model.getFeature().getPlugins();
    for (int i = 0; i < plugins.length; i++) {
      if (name.equals(plugins[i].getId())) {
        name += "-feature"; // $NON-NLS-1$
        break;
      }
    }

    String task = NLS.bind(MDEUIMessages.FeatureImportWizard_operation_creating2, name);
    monitor.beginTask(task, 9);
    try {
      IProject project = fRoot.getProject(name);

      if (project.exists() || new File(project.getParent().getLocation().toFile(), name).exists()) {
        if (queryReplace(project)) {
          if (!project.exists()) project.create(new SubProgressMonitor(monitor, 1));
          project.delete(true, true, new SubProgressMonitor(monitor, 1));
          try {
            RepositoryProvider.unmap(project);
          } catch (TeamException e) {
          }
        } else {
          return;
        }
      } else {
        monitor.worked(1);
      }

      IProjectDescription description = MDEPlugin.getWorkspace().newProjectDescription(name);
      if (fTargetPath != null) description.setLocation(fTargetPath.append(name));

      project.create(description, new SubProgressMonitor(monitor, 1));
      if (!project.isOpen()) {
        project.open(null);
      }
      File featureDir = new File(model.getInstallLocation());

      importContent(
          featureDir,
          project.getFullPath(),
          FileSystemStructureProvider.INSTANCE,
          null,
          new SubProgressMonitor(monitor, 1));
      IFolder folder = project.getFolder("META-INF"); // $NON-NLS-1$
      if (folder.exists()) {
        folder.delete(true, null);
      }
      if (fBinary) {
        // Mark this project so that we can show image overlay
        // using the label decorator
        project.setPersistentProperty(
            MDECore.EXTERNAL_PROJECT_PROPERTY, MDECore.BINARY_PROJECT_VALUE);
      }
      createBuildProperties(project);
      setProjectNatures(project, model, monitor);
      if (project.hasNature(JavaCore.NATURE_ID)) setClasspath(project, model, monitor);

    } finally {
      monitor.done();
    }
  }