public KfsFileDownload(KfsShare s, UInt64 orderID, String lastFullPath,
KfsServerFileVersion version, bool openFlag)
: base(s, orderID, lastFullPath)
{
Version = version;
OpenWhenDownloadedFlag = openFlag;
}
public override void ApplyOnServerView()
{
KfsServerFileUploader u = GetUploader();
// Process the uploaded files.
foreach (KfsServerPhase2File f in UploadArray)
{
KfsServerFile g = u.FileTree[f.Inode];
Debug.Assert(g.Inode == f.Inode);
Debug.Assert(g.UploaderSet.Contains(u));
// Create a new file version.
KfsServerFileVersion v = new KfsServerFileVersion();
v.Inode = f.Inode;
v.CommitID = CommitID;
v.UserID = UserID;
v.Date = Date;
v.Size = f.Size;
v.Hash = f.Hash;
// This version is more recent than the last uploaded version.
if (g.CurrentVersion == null || g.CurrentVersion.CommitID < CommitID)
g.CurrentVersion = v;
// If this is the first upload, force an update to check the hash
// of the local file against this version.
if (g.PersistentLocalStatus == LocalStatus.None)
g.RequestUpdate();
// If the local file appears to be modified, check if the hash of
// the new version matches the hash of the local file. If so,
// update the downloaded version and force the update of the
// current local status.
else if (g.PersistentLocalStatus == LocalStatus.Modified)
{
if (Base.ByteArrayEqual(g.LocalHash, v.Hash))
{
g.DownloadVersion = v;
g.PersistentLocalStatus = LocalStatus.Unmodified;
g.RequestUpdate();
}
}
// Remove the file from the uploader set.
g.UploaderSet.Remove(u);
u.FileTree.Remove(g.Inode);
}
// Process the cancelled uploads.
foreach (KfsServerFile g in u.FileTree.Values)
{
Debug.Assert(g.UploaderSet.Contains(u));
g.UploaderSet.Remove(u);
}
u.FileTree.Clear();
// Remove the uploader from the uploader tree.
Share.ServerView.UploaderTree.Remove(u.CommitID);
}
/// <summary>
/// Return the full path to the file having the version specified in
/// the cache.
/// </summary>
public String VersionCachePath(KfsServerFileVersion version)
{
return Share.CacheDirPath + "File_" + version.Inode + "_" + version.CommitID;
}
/// <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>
/// Return true if the file having the version specified was fully
/// downloaded in the cache.
/// </summary>
public bool HasFullVersion(KfsServerFileVersion version)
{
String path = VersionCachePath(version);
if (File.Exists(path)) return (KfsPath.GetFileSize(path) == version.Size);
return false;
}
public KfsDownloadBatchFile(UInt64 orderID, KfsServerFileVersion version, String transferPath)
: base(orderID, transferPath)
{
Version = version;
}
/// <summary>
/// Update the downloaded version of the file and force the refresh of
/// the status of the file, if requested.
/// </summary>
public void UpdateDownloadVersion(KfsServerFileVersion NewDownloadVersion, bool refreshFlag)
{
DownloadVersion = NewDownloadVersion;
if (refreshFlag)
{
PersistentLocalStatus = LocalStatus.None;
CurrentLocalStatus = LocalStatus.None;
RequestUpdate();
}
Share.App.SetDirty("UpdateDownloadVersion");
}
