void removeNode(@NotNull FilePointerPartNode node, VirtualFilePointerListener listener) {
boolean rootNodeEmpty = node.remove();
if (rootNodeEmpty) {
myPointers.remove(listener);
} else {
myPointers.get(listener).checkConsistency();
}
}
@Override
public void after(@NotNull final List<? extends VFileEvent> events) {
incModificationCount();
for (FilePointerPartNode node : myPointersToUpdateUrl) {
synchronized (this) {
VirtualFilePointerImpl pointer = node.leaf;
String urlBefore = pointer.getUrlNoUpdate();
Pair<VirtualFile, String> after = node.update();
String urlAfter = after.second;
if (URL_COMPARATOR.compare(urlBefore, urlAfter) != 0) {
// url has changed, reinsert
FilePointerPartNode root = myPointers.get(pointer.getListener());
int useCount = node.useCount;
node.remove();
FilePointerPartNode newNode =
root.findPointerOrCreate(VfsUtilCore.urlToPath(urlAfter), 0, after);
VirtualFilePointerImpl existingPointer = newNode.leaf;
if (existingPointer != null) {
// can happen when e.g. file renamed to the existing file
// merge two pointers
pointer.myNode = newNode;
} else {
newNode.associate(pointer, after);
}
newNode.incrementUsageCount(useCount);
}
}
}
VirtualFilePointer[] pointersToFireArray = toPointers(myPointersToFire);
for (VirtualFilePointer pointer : pointersToFireArray) {
((VirtualFilePointerImpl) pointer).myNode.update();
}
for (EventDescriptor event : myEvents) {
event.fireAfter();
}
if (pointersToFireArray.length != 0) {
myBus.syncPublisher(VirtualFilePointerListener.TOPIC).validityChanged(pointersToFireArray);
}
myPointersToUpdateUrl = Collections.emptyList();
myEvents = Collections.emptyList();
myPointersToFire = Collections.emptyList();
for (FilePointerPartNode root : myPointers.values()) {
root.checkConsistency();
}
}