How to use

shortenClassReferences

method

in

com.intellij.psi.codeStyle.JavaCodeStyleManager

protected void formatJavCode(PsiClass cls) {
  if (cls == null) {
    return;
  }
  JavaCodeStyleManager styleManager = JavaCodeStyleManager.getInstance(cls.getProject());
  styleManager.optimizeImports(cls.getContainingFile());
  styleManager.shortenClassReferences(cls);
}

protected PsiFile createFile(Project project, @NotNull PsiDirectory psiDirectory, String fileName, String context, LanguageFileType fileType) {
  //+        final String simpleContent = XmlSorterUtil.replaceAllByRegex(content, ">" + lineSeparator + "*\\s+?<", "><");
  String replace = context.replaceAll("\r\n", "\n");
  PsiFile file = psiDirectory.findFile(fileName);
  if (file!=null){
    file.delete();
  }
  PsiFile psiFile = PsiFileFactory.getInstance(project).createFileFromText(fileName, fileType, replace);
  // reformat class
  CodeStyleManager.getInstance(project).reformat(psiFile);
  if (psiFile instanceof PsiJavaFile) {
    JavaCodeStyleManager styleManager = JavaCodeStyleManager.getInstance(project);
    styleManager.optimizeImports(psiFile);
    styleManager.shortenClassReferences(psiFile);
  }
  //加载到磁盘中
  psiDirectory.add(psiFile);
  return psiFile;
}

public void addAnnotation(@NotNull PsiModifierListOwner parameter, @NotNull Annotation annotation) {
 PsiModifierList modifierList = parameter.getModifierList();
 if (JavaUtils.isAnnotationPresent(parameter, annotation) || null == modifierList) {
  return;
 }
 JavaService.getInstance(parameter.getProject()).importClazz((PsiJavaFile) parameter.getContainingFile(), annotation.getQualifiedName());
 
 PsiElementFactory elementFactory = JavaPsiFacade.getInstance(project).getElementFactory();
 PsiAnnotation psiAnnotation = elementFactory.createAnnotationFromText(annotation.toString(), parameter);
 modifierList.add(psiAnnotation);
 JavaCodeStyleManager.getInstance(project).shortenClassReferences(psiAnnotation.getParent());
}

    mappingMethod.getModifierList()
  );
  JavaCodeStyleManager.getInstance( project ).shortenClassReferences( inserted );
}, containingFile );

JavaCodeStyleManager.getInstance(project).shortenClassReferences(psiGetterAnnotation);
PsiAnnotation psiGetterAnnotation = elementFactory.createAnnotationFromText(Annotation.SETTER.toString(), clazz);
clazz.addBefore(psiGetterAnnotation,JavaUtils.findNealModifierElement(clazz.getFirstChild()).getFirstChild());
JavaCodeStyleManager.getInstance(project).shortenClassReferences(psiGetterAnnotation);