@Override
  public void invoke(@NotNull Project project, Editor editor, PsiFile file)
      throws IncorrectOperationException {
    if (!(file instanceof GroovyFile)) return;

    VirtualFile vfile = file.getVirtualFile();
    if (vfile == null) return;

    final Module module = ModuleUtilCore.findModuleForFile(vfile, project);
    if (module == null) return;

    final String packageName = ((GroovyFile) file).getPackageName();
    PsiDirectory directory =
        PackageUtil.findOrCreateDirectoryForPackage(module, packageName, null, true);
    if (directory == null) return;

    String error = RefactoringMessageUtil.checkCanCreateFile(directory, file.getName());
    if (error != null) {
      Messages.showMessageDialog(
          project, error, CommonBundle.getErrorTitle(), Messages.getErrorIcon());
      return;
    }
    new MoveFilesOrDirectoriesProcessor(
            project, new PsiElement[] {file}, directory, false, false, false, null, null)
        .run();
  }
  private PsiClass buildClass() {
    if (existingClass != null) {
      return existingClass;
    }
    final ParameterObjectBuilder beanClassBuilder = new ParameterObjectBuilder();
    beanClassBuilder.setVisibility(myCreateInnerClass ? PsiModifier.PRIVATE : PsiModifier.PUBLIC);
    beanClassBuilder.setProject(myProject);
    beanClassBuilder.setTypeArguments(typeParams);
    beanClassBuilder.setClassName(className);
    beanClassBuilder.setPackageName(packageName);
    for (ParameterChunk parameterChunk : parameters) {
      final VariableData parameter = parameterChunk.parameter;
      final boolean setterRequired = paramsNeedingSetters.contains(parameter.variable);
      beanClassBuilder.addField(
          (PsiParameter) parameter.variable, parameter.name, parameter.type, setterRequired);
    }
    final String classString = beanClassBuilder.buildBeanClass();

    try {
      final PsiFileFactory factory = PsiFileFactory.getInstance(method.getProject());
      final PsiJavaFile newFile =
          (PsiJavaFile)
              factory.createFileFromText(className + ".java", JavaFileType.INSTANCE, classString);
      if (myCreateInnerClass) {
        final PsiClass containingClass = method.getContainingClass();
        final PsiClass[] classes = newFile.getClasses();
        assert classes.length > 0 : classString;
        final PsiClass innerClass = (PsiClass) containingClass.add(classes[0]);
        PsiUtil.setModifierProperty(innerClass, PsiModifier.STATIC, true);
        return (PsiClass)
            JavaCodeStyleManager.getInstance(newFile.getProject())
                .shortenClassReferences(innerClass);
      } else {
        final PsiFile containingFile = method.getContainingFile();
        final PsiDirectory containingDirectory = containingFile.getContainingDirectory();
        final PsiDirectory directory;
        if (myMoveDestination != null) {
          directory = myMoveDestination.getTargetDirectory(containingDirectory);
        } else {
          final Module module = ModuleUtil.findModuleForPsiElement(containingFile);
          directory =
              PackageUtil.findOrCreateDirectoryForPackage(
                  module, packageName, containingDirectory, true, true);
        }

        if (directory != null) {

          final CodeStyleManager codeStyleManager =
              CodeStyleManager.getInstance(method.getManager().getProject());
          final PsiElement shortenedFile =
              JavaCodeStyleManager.getInstance(newFile.getProject())
                  .shortenClassReferences(newFile);
          final PsiElement reformattedFile = codeStyleManager.reformat(shortenedFile);
          return ((PsiJavaFile) directory.add(reformattedFile)).getClasses()[0];
        }
      }
    } catch (IncorrectOperationException e) {
      logger.info(e);
    }
    return null;
  }
  private PsiClass buildClass() {
    final PsiManager manager = sourceClass.getManager();
    final Project project = sourceClass.getProject();
    final ExtractedClassBuilder extractedClassBuilder = new ExtractedClassBuilder();
    extractedClassBuilder.setProject(myProject);
    extractedClassBuilder.setClassName(newClassName);
    extractedClassBuilder.setPackageName(newPackageName);
    extractedClassBuilder.setOriginalClassName(sourceClass.getQualifiedName());
    extractedClassBuilder.setRequiresBackPointer(requiresBackpointer);
    extractedClassBuilder.setExtractAsEnum(enumConstants);
    for (PsiField field : fields) {
      extractedClassBuilder.addField(field);
    }
    for (PsiMethod method : methods) {
      extractedClassBuilder.addMethod(method);
    }
    for (PsiClass innerClass : innerClasses) {
      extractedClassBuilder.addInnerClass(
          innerClass, innerClassesToMakePublic.contains(innerClass));
    }
    extractedClassBuilder.setTypeArguments(typeParams);
    final List<PsiClass> interfaces = calculateInterfacesSupported();
    extractedClassBuilder.setInterfaces(interfaces);

    if (myGenerateAccessors) {
      final NecessaryAccessorsVisitor visitor = checkNecessaryGettersSetters4ExtractedClass();
      sourceClass.accept(visitor);
      extractedClassBuilder.setFieldsNeedingGetters(visitor.getFieldsNeedingGetter());
      extractedClassBuilder.setFieldsNeedingSetters(visitor.getFieldsNeedingSetter());
    }

    final String classString = extractedClassBuilder.buildBeanClass();
    if (extractInnerClass) {
      final PsiFileFactory factory = PsiFileFactory.getInstance(project);
      final PsiJavaFile newFile =
          (PsiJavaFile)
              factory.createFileFromText(
                  newClassName + ".java", JavaFileType.INSTANCE, classString);
      final PsiClass psiClass = newFile.getClasses()[0];
      if (!psiClass.isEnum()) {
        final PsiModifierList modifierList = psiClass.getModifierList();
        assert modifierList != null;
        modifierList.setModifierProperty(PsiModifier.STATIC, true);
      }
      final PsiElement addedClass = sourceClass.add(psiClass);
      return (PsiClass)
          CodeStyleManager.getInstance(manager)
              .reformat(
                  JavaCodeStyleManager.getInstance(project).shortenClassReferences(addedClass));
    }

    try {
      final PsiFile containingFile = sourceClass.getContainingFile();
      final PsiDirectory directory;
      final PsiDirectory containingDirectory = containingFile.getContainingDirectory();
      if (myMoveDestination != null) {
        directory = myMoveDestination.getTargetDirectory(containingDirectory);
      } else {
        final Module module = ModuleUtil.findModuleForPsiElement(containingFile);
        assert module != null;
        directory =
            PackageUtil.findOrCreateDirectoryForPackage(
                module, newPackageName, containingDirectory, false, true);
      }
      if (directory != null) {
        final PsiFileFactory factory = PsiFileFactory.getInstance(project);
        final PsiFile newFile =
            factory.createFileFromText(newClassName + ".java", JavaFileType.INSTANCE, classString);
        final PsiElement addedFile = directory.add(newFile);
        final CodeStyleManager codeStyleManager =
            CodeStyleManager.getInstance(manager.getProject());
        final PsiElement shortenedFile =
            JavaCodeStyleManager.getInstance(project).shortenClassReferences(addedFile);
        return ((PsiJavaFile) codeStyleManager.reformat(shortenedFile)).getClasses()[0];
      } else {
        return null;
      }
    } catch (IncorrectOperationException e) {
      return null;
    }
  }