@Override
@NotNull
public VirtualFile[] getRoots(@NotNull final NewVirtualFileSystem fs) {
final List<VirtualFile> roots = new ArrayList<VirtualFile>();
myRootsLock.readLock().lock();
try {
for (NewVirtualFile root : myRoots.values()) {
if (root.getFileSystem() == fs) {
roots.add(root);
}
}
} finally {
myRootsLock.readLock().unlock();
}
return VfsUtilCore.toVirtualFileArray(roots);
}
@Override
@NotNull
public VirtualFile[] getLocalRoots() {
List<VirtualFile> roots = ContainerUtil.newSmartList();
myRootsLock.readLock().lock();
try {
for (NewVirtualFile root : myRoots.values()) {
if (root.isInLocalFileSystem() && !(root.getFileSystem() instanceof TempFileSystem)) {
roots.add(root);
}
}
} finally {
myRootsLock.readLock().unlock();
}
return VfsUtilCore.toVirtualFileArray(roots);
}
public void scan() {
final NewVirtualFile root = (NewVirtualFile) myRefreshRoot;
NewVirtualFileSystem delegate = root.getFileSystem();
if (root.isDirty() && !delegate.exists(root)) {
scheduleDeletion(root);
root.markClean();
} else {
if (delegate.getProtocol().equals(LocalFileSystem.PROTOCOL)
&& root.isDirectory()
&& Registry.is("filesystem.useNative")) {
if (SystemInfo.isWindows && Win32LocalFileSystem.isAvailable()) {
delegate = Win32LocalFileSystem.getWin32Instance();
}
}
final PersistentFS persistence = (PersistentFS) ManagingFS.getInstance();
while (!myRefreshQueue.isEmpty()) {
final VirtualFileSystemEntry file = (VirtualFileSystemEntry) myRefreshQueue.pullFirst();
if (!file.isDirty()) continue;
if (file.isDirectory()) {
VirtualDirectoryImpl dir = (VirtualDirectoryImpl) file;
final boolean fullSync = dir.allChildrenLoaded();
if (fullSync) {
Set<String> currentNames = new HashSet<String>(Arrays.asList(persistence.list(file)));
Set<String> uptodateNames =
new HashSet<String>(Arrays.asList(VfsUtil.filterNames(delegate.list(file))));
Set<String> newNames = new HashSet<String>(uptodateNames);
newNames.removeAll(currentNames);
Set<String> deletedNames = new HashSet<String>(currentNames);
deletedNames.removeAll(uptodateNames);
for (String name : deletedNames) {
scheduleDeletion(file.findChild(name));
}
for (String name : newNames) {
boolean isDirectory = delegate.isDirectory(new FakeVirtualFile(file, name));
scheduleCreation(file, name, isDirectory);
}
for (VirtualFile child : file.getChildren()) {
if (!deletedNames.contains(child.getName())) {
scheduleChildRefresh(file, child, delegate);
}
}
} else {
for (VirtualFile child : file.getCachedChildren()) {
if (delegate.exists(child)) {
scheduleChildRefresh(file, child, delegate);
} else {
scheduleDeletion(child);
}
}
final List<String> names = dir.getSuspiciousNames();
for (String name : names) {
if (name.length() == 0) continue;
final VirtualFile fake = new FakeVirtualFile(file, name);
if (delegate.exists(fake)) {
scheduleCreation(file, name, delegate.isDirectory(fake));
}
}
}
} else {
long currentTimestamp = persistence.getTimeStamp(file);
long updtodateTimestamp = delegate.getTimeStamp(file);
if (currentTimestamp != updtodateTimestamp) {
scheduleUpdateContent(file);
}
}
boolean currentWritable = persistence.isWritable(file);
boolean uptodateWritable = delegate.isWritable(file);
if (currentWritable != uptodateWritable) {
scheduleWritableAttributeChange(file, currentWritable, uptodateWritable);
}
file.markClean();
}
}
}