/// <summary>
/// Remove the specified download.
/// </summary>
private void RemoveDownload(KfsFileDownload f)
{
InodeTree.Remove(f.Version.Inode);
OrderTree.Remove(f.OrderID);
if (DoneTree.ContainsKey(f.OrderID)) DoneTree.Remove(f.OrderID);
Share.UnregisterFileTransfer(f);
}
/// <summary>
/// Add the file download to the list of errors, unless 'reason' is null.
/// </summary>
public void ReportError(String reason, KfsFileDownload f)
{
if (reason != null)
{
f.Error = new KfsTransferError(TransferErrorType.Download, f, reason);
Share.OnTransferError(f.Error);
}
}
/// <summary>
/// Move a file in the share.
/// </summary>
public void MoveDownloadedFile(KfsFileDownload f)
{
try
{
// Get the corresponding server file.
KfsServerFile s = Share.ServerView.GetObjectByInode(f.Version.Inode) as KfsServerFile;
// The file has been deleted on the server.
if (s == null) throw new Exception("cannot open file, it has been deleted on the server");
// Update the local status and check whether the move is safe.
s.UpdateLocalStatus();
if (s.CurrentLocalStatus == LocalStatus.Error)
throw new Exception("cannot open file: " + s.LocalError);
if (s.CurrentLocalStatus == LocalStatus.Modified)
throw new Exception("cannot update file: local copy has been modified");
// Create the missing parent directories, if possible.
Share.AddMissingLocalDirectories(s.Parent.RelativePath);
// Move the file at its proper location.
if (File.Exists(s.FullPath))
File.SetAttributes(s.FullPath, FileAttributes.Normal);
if (new FileInfo(f.CachePath).Length < 10 * 1024 * 1024)
File.Copy(f.CachePath, s.FullPath, true);
else if (!Misc.CopyFile(f.CachePath, s.FullPath, false, true, false, true, true))
throw new Exception("Unable to copy " + s.Name);
// Update the downloaded version.
s.UpdateDownloadVersion(f.Version, true);
// Update the local status of the downloaded file.
s.UpdateLocalStatus();
// Open the file for the user.
if (f.OpenWhenDownloadedFlag)
Misc.OpenFileInWorkerThread(s.FullPath);
}
catch (Exception ex)
{
ReportError(ex.Message, f);
}
finally
{
RemoveDownload(f);
}
}
/// <summary>
/// Queue the download of the specified file version. The method checks
/// if the file is already being downloaded. If the file has already been
/// downloaded, the file is added to the DoneTree immediately.
/// </summary>
public void QueueDownload(KfsServerFileVersion version, bool openFlag)
{
// The download is already queued.
if (InodeTree.ContainsKey(version.Inode))
{
if (openFlag) InodeTree[version.Inode].OpenWhenDownloadedFlag = true;
return;
}
// Queue the file download.
UInt64 orderID = Share.TransferOrderID++;
String relPath = Share.ServerView.GetObjectByInode(version.Inode).RelativePath;
KfsFileDownload f = new KfsFileDownload(Share, orderID, relPath, version, openFlag);
InodeTree[f.Version.Inode] = f;
OrderTree[f.OrderID] = f;
Share.RegisterFileTransfer(f);
// The file is already in the cache.
if (HasFullVersion(version))
{
f.Status = FileTransferStatus.Batched;
OnFileDownloadCompleted(f.OrderID);
}
// The file is empty. Create it immediately.
else if (version.Size == 0)
{
Directory.CreateDirectory(Share.CacheDirPath);
File.Create(VersionCachePath(version)).Close();
f.Status = FileTransferStatus.Batched;
OnFileDownloadCompleted(f.OrderID);
}
}
/// <summary>
/// Move a file in the share.
/// </summary>
public void MoveDownloadedFile(KfsFileDownload f)
{
try
{
// Get the corresponding server file.
KfsServerFile s = Share.ServerView.GetObjectByInode(f.Version.Inode) as KfsServerFile;
// The file has been deleted on the server.
if (s == null) throw new Exception("cannot open file, it has been deleted on the server");
// Update the local status and check whether the move is safe.
s.UpdateLocalStatus();
if (s.CurrentLocalStatus == LocalStatus.Error)
throw new Exception("cannot open file: " + s.LocalError);
if (s.CurrentLocalStatus == LocalStatus.Modified)
throw new Exception("cannot update file: local copy has been modified");
// Create the missing parent directories, if possible.
Share.AddMissingLocalDirectories(s.Parent.RelativePath);
// Get the file information.
UInt64 observedID, observedSize;
DateTime observedDate;
FileStream stream = null;
try
{
stream = new FileStream(f.CachePath, FileMode.Open, FileAccess.Read);
KfsPath.GetLowLevelFileInfo(stream, out observedID, out observedSize, out observedDate);
}
finally
{
if (stream != null) stream.Close();
}
// Move the file at its proper location.
File.Delete(s.FullPath);
File.Move(f.CachePath, s.FullPath);
// Update the downloaded version and the persistent status.
s.UpdateDownloadVersion(f.Version, true);
s.UpdatePersistentStatus(LocalStatus.Unmodified, observedDate, observedID, observedSize, f.Version.Hash);
// Open the file for the user.
if (f.OpenWhenDownloadedFlag)
Misc.OpenFileInWorkerThread(s.FullPath);
}
catch (Exception ex)
{
ReportError(ex.Message, f);
}
finally
{
RemoveDownload(f);
}
}
