public static SafeDeleteProcessor createInstance(
Project project,
@Nullable Runnable prepareSuccessfulCallBack,
PsiElement[] elementsToDelete,
boolean isSearchInComments,
boolean isSearchNonJava,
boolean askForAccessors) {
ArrayList<PsiElement> elements = new ArrayList<PsiElement>(Arrays.asList(elementsToDelete));
HashSet<PsiElement> elementsToDeleteSet =
new HashSet<PsiElement>(Arrays.asList(elementsToDelete));
for (PsiElement psiElement : elementsToDelete) {
for (SafeDeleteProcessorDelegate delegate :
Extensions.getExtensions(SafeDeleteProcessorDelegate.EP_NAME)) {
if (delegate.handlesElement(psiElement)) {
Collection<PsiElement> addedElements =
delegate.getAdditionalElementsToDelete(
psiElement, elementsToDeleteSet, askForAccessors);
if (addedElements != null) {
elements.addAll(addedElements);
}
break;
}
}
}
return new SafeDeleteProcessor(
project,
prepareSuccessfulCallBack,
PsiUtilCore.toPsiElementArray(elements),
isSearchInComments,
isSearchNonJava);
}
@Override
protected void performRefactoring(@NotNull UsageInfo[] usages) {
try {
for (UsageInfo usage : usages) {
if (usage instanceof SafeDeleteCustomUsageInfo) {
((SafeDeleteCustomUsageInfo) usage).performRefactoring();
}
}
DumbService.allowStartingDumbModeInside(
DumbModePermission.MAY_START_MODAL,
() -> {
for (PsiElement element : myElements) {
for (SafeDeleteProcessorDelegate delegate :
Extensions.getExtensions(SafeDeleteProcessorDelegate.EP_NAME)) {
if (delegate.handlesElement(element)) {
delegate.prepareForDeletion(element);
}
}
element.delete();
}
});
} catch (IncorrectOperationException e) {
RefactoringUIUtil.processIncorrectOperation(myProject, e);
}
}
@Override
@NotNull
protected UsageInfo[] findUsages() {
List<UsageInfo> usages = Collections.synchronizedList(new ArrayList<UsageInfo>());
for (PsiElement element : myElements) {
boolean handled = false;
for (SafeDeleteProcessorDelegate delegate :
Extensions.getExtensions(SafeDeleteProcessorDelegate.EP_NAME)) {
if (delegate.handlesElement(element)) {
final NonCodeUsageSearchInfo filter = delegate.findUsages(element, myElements, usages);
if (filter != null) {
for (PsiElement nonCodeUsageElement : filter.getElementsToSearch()) {
addNonCodeUsages(
nonCodeUsageElement,
usages,
filter.getInsideDeletedCondition(),
mySearchNonJava,
mySearchInCommentsAndStrings);
}
}
handled = true;
break;
}
}
if (!handled && element instanceof PsiNamedElement) {
findGenericElementUsages(element, usages, myElements);
addNonCodeUsages(
element,
usages,
getDefaultInsideDeletedCondition(myElements),
mySearchNonJava,
mySearchInCommentsAndStrings);
}
}
final UsageInfo[] result = usages.toArray(new UsageInfo[usages.size()]);
return UsageViewUtil.removeDuplicatedUsages(result);
}
@Override
protected boolean preprocessUsages(@NotNull Ref<UsageInfo[]> refUsages) {
UsageInfo[] usages = refUsages.get();
ArrayList<String> conflicts = new ArrayList<String>();
for (PsiElement element : myElements) {
for (SafeDeleteProcessorDelegate delegate :
Extensions.getExtensions(SafeDeleteProcessorDelegate.EP_NAME)) {
if (delegate.handlesElement(element)) {
Collection<String> foundConflicts =
delegate instanceof SafeDeleteProcessorDelegateBase
? ((SafeDeleteProcessorDelegateBase) delegate)
.findConflicts(element, myElements, usages)
: delegate.findConflicts(element, myElements);
if (foundConflicts != null) {
conflicts.addAll(foundConflicts);
}
break;
}
}
}
final HashMap<PsiElement, UsageHolder> elementsToUsageHolders = sortUsages(usages);
final Collection<UsageHolder> usageHolders = elementsToUsageHolders.values();
for (UsageHolder usageHolder : usageHolders) {
if (usageHolder.hasUnsafeUsagesInCode()) {
conflicts.add(usageHolder.getDescription());
}
}
if (!conflicts.isEmpty()) {
final RefactoringEventData conflictData = new RefactoringEventData();
conflictData.putUserData(RefactoringEventData.CONFLICTS_KEY, conflicts);
myProject
.getMessageBus()
.syncPublisher(RefactoringEventListener.REFACTORING_EVENT_TOPIC)
.conflictsDetected("refactoring.safeDelete", conflictData);
if (ApplicationManager.getApplication().isUnitTestMode()) {
if (!ConflictsInTestsException.isTestIgnore())
throw new ConflictsInTestsException(conflicts);
} else {
UnsafeUsagesDialog dialog =
new UnsafeUsagesDialog(ArrayUtil.toStringArray(conflicts), myProject);
if (!dialog.showAndGet()) {
final int exitCode = dialog.getExitCode();
prepareSuccessful(); // dialog is always dismissed;
if (exitCode == UnsafeUsagesDialog.VIEW_USAGES_EXIT_CODE) {
showUsages(
Arrays.stream(usages)
.filter(
usage ->
usage instanceof SafeDeleteReferenceUsageInfo
&& !((SafeDeleteReferenceUsageInfo) usage).isSafeDelete())
.toArray(UsageInfo[]::new));
}
return false;
} else {
myPreviewNonCodeUsages = false;
}
}
}
UsageInfo[] preprocessedUsages = usages;
for (SafeDeleteProcessorDelegate delegate :
Extensions.getExtensions(SafeDeleteProcessorDelegate.EP_NAME)) {
preprocessedUsages = delegate.preprocessUsages(myProject, preprocessedUsages);
if (preprocessedUsages == null) return false;
}
final UsageInfo[] filteredUsages = UsageViewUtil.removeDuplicatedUsages(preprocessedUsages);
prepareSuccessful(); // dialog is always dismissed
if (filteredUsages == null) {
return false;
}
refUsages.set(filteredUsages);
return true;
}