public void GetFileOrAddFile(TKey key, Func <TKey, string> provider, CancellationToken token, string targetFilePath, ICacheExpirationPolicy policy)
{
NotNull(provider, nameof(provider));
NotNull(key, nameof(key));
NotNull(targetFilePath, nameof(targetFilePath));
EnsureInitialized(token);
using (GlobalReadLock(token))
{
var entry = InternalGetOrAdd(key, kk => new CFileSource(provider(kk), _fs), token, policy);
using (var cfs = new CFileSource(entry.FilePath, _fs))
{
cfs.CopyTo(targetFilePath, token, true);
}
}
}
private string UploadToCache(CFileSource src, CancellationToken token)
{
token.ThrowIfCancellationRequested();
var path = GetTmpUploadFilePath(token);
try
{
src.CopyTo(path, token, false);
token.ThrowIfCancellationRequested();
return(MoveToCache(path, token));
}
catch
{
if (_fs.FileExist(path, token))
{
MoveToTrash(path, token);
}
throw;
}
}
public bool TryGetFile(TKey key, CancellationToken token, string targetFilePath)
{
NotNull(key, nameof(key));
NotNull(targetFilePath, nameof(targetFilePath));
EnsureInitialized(token);
using (GlobalReadLock(token))
{
var entry = InternalGetEntry(key, token);
if (entry == null)
{
return(false);
}
using (var cfs = new CFileSource(entry.FilePath, _fs))
{
cfs.CopyTo(targetFilePath, token, true);
}
return(true);
}
}