public static boolean isImplicitlyImported(@NotNull String className, @NotNull PsiJavaFile file) {
String[] packageNames = file.getImplicitlyImportedPackages();
for (String packageName : packageNames) {
if (hasPackage(className, packageName)) return true;
}
return false;
}
@NotNull
private static Set<String> findSingleImports(
@NotNull final PsiJavaFile file,
@NotNull String[] names,
@NotNull final Set<String> onDemandImports,
@NotNull Set<String> namesToImportStaticly) {
final GlobalSearchScope resolveScope = file.getResolveScope();
Set<String> namesToUseSingle = new THashSet<String>();
final String thisPackageName = file.getPackageName();
final Set<String> implicitlyImportedPackages =
new THashSet<String>(Arrays.asList(file.getImplicitlyImportedPackages()));
final PsiManager manager = file.getManager();
for (String name : names) {
String prefix = getPackageOrClassName(name);
if (prefix.length() == 0) continue;
final boolean isImplicitlyImported = implicitlyImportedPackages.contains(prefix);
if (!onDemandImports.contains(prefix) && !isImplicitlyImported) continue;
String shortName = PsiNameHelper.getShortClassName(name);
String thisPackageClass =
thisPackageName.length() > 0 ? thisPackageName + "." + shortName : shortName;
if (JavaPsiFacade.getInstance(manager.getProject()).findClass(thisPackageClass, resolveScope)
!= null) {
namesToUseSingle.add(name);
continue;
}
if (!isImplicitlyImported) {
String langPackageClass = JAVA_LANG_PACKAGE + "." + shortName; // TODO : JSP!
if (JavaPsiFacade.getInstance(manager.getProject())
.findClass(langPackageClass, resolveScope)
!= null) {
namesToUseSingle.add(name);
continue;
}
}
for (String onDemandName : onDemandImports) {
if (prefix.equals(onDemandName)) continue;
if (namesToImportStaticly.contains(name)) {
PsiClass aClass =
JavaPsiFacade.getInstance(manager.getProject()).findClass(onDemandName, resolveScope);
if (aClass != null) {
PsiField field = aClass.findFieldByName(shortName, true);
if (field != null && field.hasModifierProperty(PsiModifier.STATIC)) {
namesToUseSingle.add(name);
} else {
PsiClass inner = aClass.findInnerClassByName(shortName, true);
if (inner != null && inner.hasModifierProperty(PsiModifier.STATIC)) {
namesToUseSingle.add(name);
} else {
PsiMethod[] methods = aClass.findMethodsByName(shortName, true);
for (PsiMethod method : methods) {
if (method.hasModifierProperty(PsiModifier.STATIC)) {
namesToUseSingle.add(name);
}
}
}
}
}
} else {
PsiClass aClass =
JavaPsiFacade.getInstance(manager.getProject())
.findClass(onDemandName + "." + shortName, resolveScope);
if (aClass != null) {
namesToUseSingle.add(name);
}
}
}
}
return namesToUseSingle;
}