private static void collectNamesToImport(
@NotNull final Set<String> names,
@NotNull final PsiJavaFile file,
@NotNull final Set<String> namesToImportStaticly,
PsiFile context) {
String packageName = file.getPackageName();
final PsiElement[] roots = file.getPsiRoots();
for (PsiElement root : roots) {
addNamesToImport(names, root, packageName, namesToImportStaticly, context);
}
}
@NotNull
private File fileToFile(PsiJavaFile javaFile, List<String> additionalImports) {
PsiImportList importList = javaFile.getImportList();
List<Import> imports =
importList == null
? Collections.<Import>emptyList()
: importsToImportList(importList.getAllImportStatements());
for (String i : additionalImports) imports.add(new Import(i));
return new File(
quoteKeywords(javaFile.getPackageName()),
imports,
classesToClassList(javaFile.getClasses()),
createMainFunction(javaFile));
}
public static boolean hasDefaultImportConflict(String fqName, PsiJavaFile file) {
final String shortName = ClassUtil.extractClassName(fqName);
final String packageName = ClassUtil.extractPackageName(fqName);
final String filePackageName = file.getPackageName();
if (filePackageName.equals(packageName)) {
return false;
}
final Project project = file.getProject();
final JavaPsiFacade psiFacade = JavaPsiFacade.getInstance(project);
final PsiPackage filePackage = psiFacade.findPackage(filePackageName);
if (filePackage == null) {
return false;
}
return filePackage.containsClassNamed(shortName);
}
public static void addImportIfNeeded(@NotNull PsiClass aClass, @NotNull PsiElement context) {
final PsiFile file = context.getContainingFile();
if (!(file instanceof PsiJavaFile)) {
return;
}
final PsiJavaFile javaFile = (PsiJavaFile) file;
final PsiClass outerClass = aClass.getContainingClass();
if (outerClass == null) {
if (PsiTreeUtil.isAncestor(javaFile, aClass, true)) {
return;
}
} else if (PsiTreeUtil.isAncestor(outerClass, context, true)) {
final PsiElement brace = outerClass.getLBrace();
if (brace != null && brace.getTextOffset() < context.getTextOffset()) {
return;
}
}
final String qualifiedName = aClass.getQualifiedName();
if (qualifiedName == null) {
return;
}
final PsiImportList importList = javaFile.getImportList();
if (importList == null) {
return;
}
final String containingPackageName = javaFile.getPackageName();
@NonNls final String packageName = ClassUtil.extractPackageName(qualifiedName);
if (containingPackageName.equals(packageName)
|| importList.findSingleClassImportStatement(qualifiedName) != null) {
return;
}
if (importList.findOnDemandImportStatement(packageName) != null
&& !hasDefaultImportConflict(qualifiedName, javaFile)
&& !hasOnDemandImportConflict(qualifiedName, javaFile)) {
return;
}
final Project project = importList.getProject();
final JavaPsiFacade psiFacade = JavaPsiFacade.getInstance(project);
final PsiElementFactory elementFactory = psiFacade.getElementFactory();
final PsiImportStatement importStatement = elementFactory.createImportStatement(aClass);
importList.add(importStatement);
}
@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;
}
@Override
@Nullable
public List<PsiFile> findExternalAnnotationsFiles(@NotNull PsiModifierListOwner listOwner) {
final PsiFile containingFile = listOwner.getContainingFile();
if (!(containingFile instanceof PsiJavaFile)) {
return null;
}
final PsiJavaFile javaFile = (PsiJavaFile) containingFile;
final String packageName = javaFile.getPackageName();
final VirtualFile virtualFile = containingFile.getVirtualFile();
if (virtualFile == null) return null;
final List<PsiFile> files = myExternalAnnotations.get(virtualFile);
if (files == NULL_LIST) return null;
if (files != null) {
boolean allValid = true;
for (PsiFile file : files) {
allValid &= file.isValid();
}
if (allValid) {
return files;
}
}
if (virtualFile == null) {
return null;
}
Set<PsiFile> possibleAnnotationsXmls = new THashSet<PsiFile>();
for (VirtualFile root : getExternalAnnotationsRoots(virtualFile)) {
final VirtualFile ext =
root.findFileByRelativePath(packageName.replace('.', '/') + "/" + ANNOTATIONS_XML);
if (ext == null) continue;
final PsiFile psiFile = myPsiManager.findFile(ext);
if (psiFile == null) continue;
possibleAnnotationsXmls.add(psiFile);
}
List<PsiFile> result;
if (possibleAnnotationsXmls.isEmpty()) {
myExternalAnnotations.put(virtualFile, NULL_LIST);
result = null;
} else {
result = new SmartList<PsiFile>(possibleAnnotationsXmls);
// sorting by writability: writable go first
Collections.sort(
result,
new Comparator<PsiFile>() {
@Override
public int compare(PsiFile f1, PsiFile f2) {
boolean w1 = f1.isWritable();
boolean w2 = f2.isWritable();
if (w1 == w2) {
return 0;
}
return w1 ? -1 : 1;
}
});
myExternalAnnotations.put(virtualFile, result);
}
return result;
}