private VirtualFileSystemEntry applyEvent(@NotNull VFileEvent event) {
try {
if (event instanceof VFileCreateEvent) {
final VFileCreateEvent createEvent = (VFileCreateEvent) event;
return executeCreateChild(createEvent.getParent(), createEvent.getChildName());
} else if (event instanceof VFileDeleteEvent) {
final VFileDeleteEvent deleteEvent = (VFileDeleteEvent) event;
executeDelete(deleteEvent.getFile());
} else if (event instanceof VFileContentChangeEvent) {
final VFileContentChangeEvent contentUpdateEvent = (VFileContentChangeEvent) event;
executeTouch(
contentUpdateEvent.getFile(),
contentUpdateEvent.isFromRefresh(),
contentUpdateEvent.getModificationStamp());
} else if (event instanceof VFileCopyEvent) {
final VFileCopyEvent copyEvent = (VFileCopyEvent) event;
return executeCreateChild(copyEvent.getNewParent(), copyEvent.getNewChildName());
} else if (event instanceof VFileMoveEvent) {
final VFileMoveEvent moveEvent = (VFileMoveEvent) event;
executeMove(moveEvent.getFile(), moveEvent.getNewParent());
} else if (event instanceof VFilePropertyChangeEvent) {
final VFilePropertyChangeEvent propertyChangeEvent = (VFilePropertyChangeEvent) event;
if (VirtualFile.PROP_NAME.equals(propertyChangeEvent.getPropertyName())) {
executeRename(propertyChangeEvent.getFile(), (String) propertyChangeEvent.getNewValue());
} else if (VirtualFile.PROP_WRITABLE.equals(propertyChangeEvent.getPropertyName())) {
executeSetWritable(
propertyChangeEvent.getFile(),
((Boolean) propertyChangeEvent.getNewValue()).booleanValue());
} else if (VirtualFile.PROP_HIDDEN.equals(propertyChangeEvent.getPropertyName())) {
executeSetHidden(
propertyChangeEvent.getFile(),
((Boolean) propertyChangeEvent.getNewValue()).booleanValue());
} else if (VirtualFile.PROP_SYMLINK_TARGET.equals(propertyChangeEvent.getPropertyName())) {
executeSetTarget(
propertyChangeEvent.getFile(), (String) propertyChangeEvent.getNewValue());
}
}
} catch (Exception e) {
// Exception applying single event should not prevent other events from applying.
LOG.error(e);
}
return null;
}
@RequiredWriteAction
@Override
public void processEvents(@NotNull List<VFileEvent> events) {
ApplicationManager.getApplication().assertWriteAccessAllowed();
List<VFileEvent> validated = validateEvents(events);
BulkFileListener publisher = myEventBus.syncPublisher(VirtualFileManager.VFS_CHANGES);
publisher.before(validated);
THashMap<VirtualFile, List<VFileEvent>> parentToChildrenEventsChanges = null;
for (VFileEvent event : validated) {
VirtualFile changedParent = null;
if (event instanceof VFileCreateEvent) {
changedParent = ((VFileCreateEvent) event).getParent();
((VFileCreateEvent) event).resetCache();
} else if (event instanceof VFileDeleteEvent) {
changedParent = ((VFileDeleteEvent) event).getFile().getParent();
}
if (changedParent != null) {
if (parentToChildrenEventsChanges == null)
parentToChildrenEventsChanges = new THashMap<VirtualFile, List<VFileEvent>>();
List<VFileEvent> parentChildrenChanges = parentToChildrenEventsChanges.get(changedParent);
if (parentChildrenChanges == null) {
parentToChildrenEventsChanges.put(
changedParent, parentChildrenChanges = new SmartList<VFileEvent>());
}
parentChildrenChanges.add(event);
} else {
applyEvent(event);
}
}
if (parentToChildrenEventsChanges != null) {
parentToChildrenEventsChanges.forEachEntry(
new TObjectObjectProcedure<VirtualFile, List<VFileEvent>>() {
@Override
public boolean execute(VirtualFile parent, List<VFileEvent> childrenEvents) {
applyChildrenChangeEvents(parent, childrenEvents);
return true;
}
});
parentToChildrenEventsChanges.clear();
}
publisher.after(validated);
}