Java ProjectRootManager.getFileIndex方法代碼示例

import com.intellij.openapi.roots.ProjectRootManager; //導入方法依賴的package包/類
@CheckReturnValue
@VisibleForTesting
@SuppressWarnings("WeakerAccess")
static boolean isAvailable(@Nonnull AnActionEvent event) {
    final Project project = event.getProject();
    if (project == null) {
        return false;
    }

    final IdeView view = event.getData(LangDataKeys.IDE_VIEW);
    if (view == null) {
        return false;
    }

    final ProjectRootManager rootManager = ProjectRootManager.getInstance(project);
    final ProjectFileIndex fileIndex = rootManager.getFileIndex();
    final Optional<PsiDirectory> sourceDirectory = Stream.of(view.getDirectories())
            .filter(directory -> {
                final VirtualFile virtualFile = directory.getVirtualFile();
                return fileIndex.isUnderSourceRootOfType(virtualFile, JavaModuleSourceRootTypes.SOURCES);
            })
            .findFirst();
    return sourceDirectory.isPresent();
}
 

import com.intellij.openapi.roots.ProjectRootManager; //導入方法依賴的package包/類
public List<VirtualFile> getTopLevelRoots() {
  List<VirtualFile> topLevelContentRoots = new ArrayList<VirtualFile>();
  ProjectRootManager prm = ProjectRootManager.getInstance(myProject);
  ProjectFileIndex index = prm.getFileIndex();

  for (VirtualFile root : prm.getContentRoots()) {
    VirtualFile parent = root.getParent();
    if (parent == null || !index.isInContent(parent)) {
      topLevelContentRoots.add(root);
    }
  }
  return topLevelContentRoots;
}
 

import com.intellij.openapi.roots.ProjectRootManager; //導入方法依賴的package包/類
public static String getPackage(@NotNull PsiDirectory directory) {
  final VirtualFile virtualFile = directory.getVirtualFile();
  final Project project = directory.getProject();
  final ProjectRootManager projectRootManager = ProjectRootManager.getInstance(project);
  final ProjectFileIndex fileIndex = projectRootManager.getFileIndex();
  return fileIndex.getPackageNameByDirectory(virtualFile);
}
 

import com.intellij.openapi.roots.ProjectRootManager; //導入方法依賴的package包/類
public ProjectFileIndexFacade(final Project project, final ProjectRootManager rootManager, final DirectoryIndex directoryIndex) {
  super(project);
  myDirectoryIndex = directoryIndex;
  myFileIndex = rootManager.getFileIndex();
}
 

import com.intellij.openapi.roots.ProjectRootManager; //導入方法依賴的package包/類
public DirectoryNode(VirtualFile aDirectory,
                     Project project,
                     boolean compactPackages,
                     boolean showFQName,
                     VirtualFile baseDir, final VirtualFile[] contentRoots) {
  super(project);
  myVDirectory = aDirectory;
  final ProjectRootManager projectRootManager = ProjectRootManager.getInstance(project);
  final ProjectFileIndex index = projectRootManager.getFileIndex();
  String dirName = aDirectory.getName();
  if (showFQName) {
    final VirtualFile contentRoot = index.getContentRootForFile(myVDirectory);
    if (contentRoot != null) {
      if (Comparing.equal(myVDirectory, contentRoot)) {
        myFQName = dirName;
      }
      else {
        final VirtualFile sourceRoot = index.getSourceRootForFile(myVDirectory);
        if (Comparing.equal(myVDirectory, sourceRoot)) {
          myFQName = VfsUtilCore.getRelativePath(myVDirectory, contentRoot, '/');
        }
        else if (sourceRoot != null) {
          myFQName = VfsUtilCore.getRelativePath(myVDirectory, sourceRoot, '/');
        }
        else {
          myFQName = VfsUtilCore.getRelativePath(myVDirectory, contentRoot, '/');
        }
      }

      if (contentRoots.length > 1 && ProjectRootsUtil.isModuleContentRoot(myVDirectory, project)) {
        myFQName = getContentRootName(baseDir, myFQName);
      }
    }
    else {
      myFQName = FilePatternPackageSet.getLibRelativePath(myVDirectory, index);
    }
    dirName = myFQName;
  } else {
    if (contentRoots.length > 1 && ProjectRootsUtil.isModuleContentRoot(myVDirectory, project)) {
      dirName = getContentRootName(baseDir, dirName);
    }
  }
  myDirName = dirName;
  myCompactPackages = compactPackages;
}
 

import com.intellij.openapi.roots.ProjectRootManager; //導入方法依賴的package包/類
@NotNull
private static PsiClass createBeanClass(final WizardData wizardData) throws MyException {
  final PsiManager psiManager = PsiManager.getInstance(wizardData.myProject);

  final ProjectRootManager projectRootManager = ProjectRootManager.getInstance(wizardData.myProject);
  final ProjectFileIndex fileIndex = projectRootManager.getFileIndex();
  final VirtualFile sourceRoot = fileIndex.getSourceRootForFile(wizardData.myFormFile);
  if (sourceRoot == null) {
    throw new MyException(UIDesignerBundle.message("error.form.file.is.not.in.source.root"));
  }

  final PsiDirectory rootDirectory = psiManager.findDirectory(sourceRoot);
  LOG.assertTrue(rootDirectory != null);

  final PsiPackage aPackage = JavaPsiFacade.getInstance(psiManager.getProject()).findPackage(wizardData.myPackageName);
  if (aPackage == null) {
    throw new MyException(UIDesignerBundle.message("error.package.does.not.exist", wizardData.myPackageName));
  }

  PsiDirectory targetDir = null;

  final PsiDirectory[] directories = aPackage.getDirectories();
  for (final PsiDirectory psiDirectory : directories) {
    if (PsiTreeUtil.isAncestor(rootDirectory, psiDirectory, false)) {
      targetDir = psiDirectory;
      break;
    }
  }

  if (targetDir == null) {
    // todo
    throw new MyException(UIDesignerBundle.message("error.cannot.find.package", wizardData.myPackageName));
  }

  //noinspection HardCodedStringLiteral
  final String body =
    "public class " + wizardData.myShortClassName + "{\n" +
    "public " + wizardData.myShortClassName + "(){}\n" +
    "}";

  try {
    PsiFile sourceFile =
      PsiFileFactory.getInstance(psiManager.getProject()).createFileFromText(wizardData.myShortClassName + ".java", body);
    sourceFile = (PsiFile)targetDir.add(sourceFile);

    final PsiClass beanClass = ((PsiJavaFile)sourceFile).getClasses()[0];

    final ArrayList<String> properties = new ArrayList<String>();
    final HashMap<String, String> property2fqClassName = new HashMap<String, String>();

    final FormProperty2BeanProperty[] bindings = wizardData.myBindings;
    for (final FormProperty2BeanProperty binding : bindings) {
      if (binding == null || binding.myBeanProperty == null) {
        continue;
      }

      properties.add(binding.myBeanProperty.myName);

      // todo: handle "casts" ?

      final String propertyClassName = binding.myFormProperty.getComponentPropertyClassName();

      property2fqClassName.put(binding.myBeanProperty.myName, propertyClassName);
    }

    generateBean(beanClass, ArrayUtil.toStringArray(properties), property2fqClassName);

    return beanClass;
  }
  catch (IncorrectOperationException e) {
    throw new MyException(e.getMessage());
  }
}