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;
}
@Override
public void propertyChanged(@NotNull VirtualFilePropertyEvent event) {
if (!isModuleAdded
|| event.getRequestor() instanceof StateStorage
|| !VirtualFile.PROP_NAME.equals(event.getPropertyName())) {
return;
}
VirtualFile parent = event.getParent();
if (parent != null) {
String parentPath = parent.getPath();
String ancestorPath = parentPath + "/" + event.getOldValue();
String moduleFilePath = getModuleFilePath();
if (VfsUtilCore.isAncestor(new File(ancestorPath), new File(moduleFilePath), true)) {
setModuleFilePath(
parentPath
+ "/"
+ event.getNewValue()
+ "/"
+ FileUtil.getRelativePath(ancestorPath, moduleFilePath, '/'));
}
}
}
@Override
public void before(@NotNull final List<? extends VFileEvent> events) {
cleanContainerCaches();
List<VirtualFilePointer> toFireEvents = new ArrayList<VirtualFilePointer>();
List<String> toUpdateUrl = new ArrayList<String>();
synchronized (VirtualFilePointerManagerImpl.this) {
for (VFileEvent event : events) {
if (event instanceof VFileDeleteEvent) {
final VFileDeleteEvent deleteEvent = (VFileDeleteEvent) event;
String url = deleteEvent.getFile().getPath();
addPointersUnder(url, true, toFireEvents);
} else if (event instanceof VFileCreateEvent) {
final VFileCreateEvent createEvent = (VFileCreateEvent) event;
String url = createEvent.getPath();
addPointersUnder(url, false, toFireEvents);
} else if (event instanceof VFileCopyEvent) {
final VFileCopyEvent copyEvent = (VFileCopyEvent) event;
String url = copyEvent.getNewParent().getPath() + "/" + copyEvent.getFile().getName();
addPointersUnder(url, false, toFireEvents);
} else if (event instanceof VFileMoveEvent) {
final VFileMoveEvent moveEvent = (VFileMoveEvent) event;
List<VirtualFilePointer> pointers = new ArrayList<VirtualFilePointer>();
addPointersUnder(moveEvent.getFile().getPath(), false, pointers);
for (VirtualFilePointer pointer : pointers) {
VirtualFile file = pointer.getFile();
if (file != null) {
toUpdateUrl.add(file.getPath());
}
}
} else if (event instanceof VFilePropertyChangeEvent) {
final VFilePropertyChangeEvent change = (VFilePropertyChangeEvent) event;
if (VirtualFile.PROP_NAME.equals(change.getPropertyName())) {
List<VirtualFilePointer> pointers = new ArrayList<VirtualFilePointer>();
addPointersUnder(change.getFile().getPath(), false, pointers);
for (VirtualFilePointer pointer : pointers) {
VirtualFile file = pointer.getFile();
if (file != null) {
toUpdateUrl.add(file.getPath());
}
}
}
}
}
myEvents = new ArrayList<EventDescriptor>();
for (VirtualFilePointerListener listener : myUrlToPointerMaps.keySet()) {
if (listener == null) continue;
EventDescriptor event = new EventDescriptor(listener, toFireEvents);
myEvents.add(event);
}
}
for (EventDescriptor event : myEvents) {
event.fireBefore();
}
if (!toFireEvents.isEmpty()) {
VirtualFilePointer[] arr =
toFireEvents.toArray(new VirtualFilePointer[toFireEvents.size()]);
myBus.syncPublisher(VirtualFilePointerListener.TOPIC).beforeValidityChanged(arr);
}
myPointersToUpdate = toFireEvents;
myUrlsToUpdate = toUpdateUrl;
}
@Override
public void propertyChanged(@NotNull final VirtualFilePropertyEvent event) {
final String propertyName = event.getPropertyName();
final VirtualFile vFile = event.getFile();
final FileViewProvider oldFileViewProvider = myFileManager.findCachedViewProvider(vFile);
final PsiFile oldPsiFile;
if (oldFileViewProvider instanceof SingleRootFileViewProvider) {
oldPsiFile =
((SingleRootFileViewProvider) oldFileViewProvider)
.getCachedPsi(oldFileViewProvider.getBaseLanguage());
} else {
oldPsiFile = null;
}
VirtualFile parent = vFile.getParent();
final PsiDirectory parentDir =
oldPsiFile != null && parent != null
? myFileManager.findDirectory(parent)
: getCachedDirectory(parent);
if (oldFileViewProvider
!= null // there is no need to rebuild if there were no PSI in the first place
&& FileContentUtilCore.FORCE_RELOAD_REQUESTOR.equals(event.getRequestor())) {
myFileManager.forceReload(vFile);
return;
}
// do not suppress reparse request for light files
if (parentDir == null) {
boolean fire = VirtualFile.PROP_NAME.equals(propertyName) && vFile.isDirectory();
if (fire) {
PsiDirectory psiDir = myFileManager.getCachedDirectory(vFile);
fire = psiDir != null;
}
if (!fire && !VirtualFile.PROP_WRITABLE.equals(propertyName)) {
handleVfsChangeWithoutPsi(vFile);
return;
}
}
((SmartPointerManagerImpl) SmartPointerManager.getInstance(myManager.getProject()))
.fastenBelts(vFile, 0, null);
ApplicationManager.getApplication()
.runWriteAction(
new ExternalChangeAction() {
@Override
public void run() {
PsiTreeChangeEventImpl treeEvent = new PsiTreeChangeEventImpl(myManager);
treeEvent.setParent(parentDir);
if (VirtualFile.PROP_NAME.equals(propertyName)) {
if (vFile.isDirectory()) {
PsiDirectory psiDir = myFileManager.getCachedDirectory(vFile);
if (psiDir != null) {
if (myFileTypeManager.isFileIgnored(vFile)) {
myFileManager.removeFilesAndDirsRecursively(vFile);
treeEvent.setChild(psiDir);
myManager.childRemoved(treeEvent);
} else {
treeEvent.setElement(psiDir);
treeEvent.setPropertyName(PsiTreeChangeEvent.PROP_DIRECTORY_NAME);
treeEvent.setOldValue(event.getOldValue());
treeEvent.setNewValue(event.getNewValue());
myManager.propertyChanged(treeEvent);
}
} else {
PsiDirectory psiDir1 = myFileManager.findDirectory(vFile);
if (psiDir1 != null) {
treeEvent.setChild(psiDir1);
myManager.childAdded(treeEvent);
}
}
} else {
final FileViewProvider fileViewProvider =
myFileManager.createFileViewProvider(vFile, true);
final PsiFile newPsiFile =
fileViewProvider.getPsi(fileViewProvider.getBaseLanguage());
if (oldPsiFile != null) {
if (newPsiFile == null) {
myFileManager.setViewProvider(vFile, null);
treeEvent.setChild(oldPsiFile);
myManager.childRemoved(treeEvent);
} else if (!FileManagerImpl.areViewProvidersEquivalent(
fileViewProvider, oldFileViewProvider)) {
myFileManager.setViewProvider(vFile, fileViewProvider);
treeEvent.setOldChild(oldPsiFile);
treeEvent.setNewChild(newPsiFile);
myManager.childReplaced(treeEvent);
} else {
if (oldPsiFile instanceof PsiFileImpl) {
((PsiFileImpl) oldPsiFile).clearCaches();
}
treeEvent.setElement(oldPsiFile);
treeEvent.setPropertyName(PsiTreeChangeEvent.PROP_FILE_NAME);
treeEvent.setOldValue(event.getOldValue());
treeEvent.setNewValue(event.getNewValue());
myManager.propertyChanged(treeEvent);
}
} else if (newPsiFile != null) {
myFileManager.setViewProvider(vFile, fileViewProvider);
if (parentDir != null) {
treeEvent.setChild(newPsiFile);
myManager.childAdded(treeEvent);
}
}
}
} else if (VirtualFile.PROP_WRITABLE.equals(propertyName)) {
if (oldPsiFile == null) return;
treeEvent.setElement(oldPsiFile);
treeEvent.setPropertyName(PsiTreeChangeEvent.PROP_WRITABLE);
treeEvent.setOldValue(event.getOldValue());
treeEvent.setNewValue(event.getNewValue());
myManager.propertyChanged(treeEvent);
} else if (VirtualFile.PROP_ENCODING.equals(propertyName)) {
if (oldPsiFile == null) return;
treeEvent.setElement(oldPsiFile);
treeEvent.setPropertyName(VirtualFile.PROP_ENCODING);
treeEvent.setOldValue(event.getOldValue());
treeEvent.setNewValue(event.getNewValue());
myManager.propertyChanged(treeEvent);
}
}
});
}
@Override
public void before(@NotNull final List<? extends VFileEvent> events) {
List<FilePointerPartNode> toFireEvents = new ArrayList<FilePointerPartNode>();
List<FilePointerPartNode> toUpdateUrl = new ArrayList<FilePointerPartNode>();
VirtualFilePointer[] toFirePointers;
synchronized (this) {
incModificationCount();
for (VFileEvent event : events) {
if (event instanceof VFileDeleteEvent) {
final VFileDeleteEvent deleteEvent = (VFileDeleteEvent) event;
addPointersUnder(deleteEvent.getFile(), false, "", toFireEvents);
} else if (event instanceof VFileCreateEvent) {
final VFileCreateEvent createEvent = (VFileCreateEvent) event;
addPointersUnder(createEvent.getParent(), true, createEvent.getChildName(), toFireEvents);
} else if (event instanceof VFileCopyEvent) {
final VFileCopyEvent copyEvent = (VFileCopyEvent) event;
addPointersUnder(
copyEvent.getNewParent(), true, copyEvent.getFile().getName(), toFireEvents);
} else if (event instanceof VFileMoveEvent) {
final VFileMoveEvent moveEvent = (VFileMoveEvent) event;
VirtualFile eventFile = moveEvent.getFile();
addPointersUnder(moveEvent.getNewParent(), true, eventFile.getName(), toFireEvents);
List<FilePointerPartNode> nodes = new ArrayList<FilePointerPartNode>();
addPointersUnder(eventFile, false, "", nodes);
for (FilePointerPartNode pair : nodes) {
VirtualFile file = pair.leaf.getFile();
if (file != null) {
toUpdateUrl.add(pair);
}
}
} else if (event instanceof VFilePropertyChangeEvent) {
final VFilePropertyChangeEvent change = (VFilePropertyChangeEvent) event;
if (VirtualFile.PROP_NAME.equals(change.getPropertyName())) {
VirtualFile eventFile = change.getFile();
VirtualFile parent = eventFile.getParent(); // e.g. for LightVirtualFiles
addPointersUnder(parent, true, change.getNewValue().toString(), toFireEvents);
List<FilePointerPartNode> nodes = new ArrayList<FilePointerPartNode>();
addPointersUnder(eventFile, false, "", nodes);
for (FilePointerPartNode pair : nodes) {
VirtualFile file = pair.leaf.getFile();
if (file != null) {
toUpdateUrl.add(pair);
}
}
}
}
}
myEvents = new ArrayList<EventDescriptor>();
toFirePointers = toPointers(toFireEvents);
for (final VirtualFilePointerListener listener : myPointers.keySet()) {
if (listener == null) continue;
List<VirtualFilePointer> filtered =
ContainerUtil.filter(
toFirePointers,
new Condition<VirtualFilePointer>() {
@Override
public boolean value(VirtualFilePointer pointer) {
return ((VirtualFilePointerImpl) pointer).getListener() == listener;
}
});
if (!filtered.isEmpty()) {
EventDescriptor event =
new EventDescriptor(
listener, filtered.toArray(new VirtualFilePointer[filtered.size()]));
myEvents.add(event);
}
}
}
for (EventDescriptor descriptor : myEvents) {
descriptor.fireBefore();
}
if (!toFireEvents.isEmpty()) {
myBus.syncPublisher(VirtualFilePointerListener.TOPIC).beforeValidityChanged(toFirePointers);
}
myPointersToFire = toFireEvents;
myPointersToUpdateUrl = toUpdateUrl;
}
@Override
public void propertyChanged(@NotNull VirtualFilePropertyEvent event) {
if (VirtualFile.PROP_NAME.equals(event.getPropertyName())) {
fileChanged(myProject, event.getFile());
}
}