@Override
protected Set<String> getStringsToSearch(final PsiElement element) {
if (element instanceof PsiDirectory) { // normalize a directory to a corresponding package
return getStringsToSearch(
JavaDirectoryService.getInstance().getPackage((PsiDirectory) element));
}
final Set<String> result = new HashSet<String>();
ApplicationManager.getApplication()
.runReadAction(
new Runnable() {
@Override
public void run() {
if (element instanceof PsiPackage) {
ContainerUtil.addIfNotNull(result, ((PsiPackage) element).getQualifiedName());
} else if (element instanceof PsiClass) {
final String qname = ((PsiClass) element).getQualifiedName();
if (qname != null) {
result.add(qname);
PsiClass topLevelClass = PsiUtil.getTopLevelClass(element);
if (topLevelClass != null) {
String topName = topLevelClass.getQualifiedName();
assert topName != null;
result.add(topName + qname.substring(topName.length()).replace('.', '$'));
}
}
} else if (element instanceof PsiMethod) {
ContainerUtil.addIfNotNull(result, ((PsiMethod) element).getName());
} else if (element instanceof PsiVariable) {
ContainerUtil.addIfNotNull(result, ((PsiVariable) element).getName());
} else if (element instanceof PsiMetaOwner) {
final PsiMetaData metaData = ((PsiMetaOwner) element).getMetaData();
if (metaData != null) {
ContainerUtil.addIfNotNull(result, metaData.getName());
}
} else if (element instanceof PsiNamedElement) {
ContainerUtil.addIfNotNull(result, ((PsiNamedElement) element).getName());
} else if (element instanceof XmlAttributeValue) {
ContainerUtil.addIfNotNull(result, ((XmlAttributeValue) element).getValue());
} else {
LOG.error("Unknown element type: " + element);
}
}
});
return result;
}
