async Task Init()
{
Stream fs = await fileSystem.OpenFile(fileName);
this.stream.SetStream(fs, true);
this.fsInfo = (IFileStreamInfo)fs;
}
public async Task Update()
{
CheckDisposed();
if (fsInfo == null)
{
Stream fs;
try
{
fs = await fileSystem.OpenFile(fileName);
}
catch
{
return;
}
this.stream.SetStream(fs, true);
this.fsInfo = (IFileStreamInfo)fs;
}
if (fsInfo.IsDeleted)
{
size = 0;
lastModified = new DateTime();
stream.SetStream(emptyMemoryStream, false);
fsInfo = null;
return;
}
size = stream.Length;
lastModified = fsInfo.LastWriteTime;
}
public SimpleFileMedia(IFileSystem fileSystem, IConnectionParams connectParams)
{
if (fileSystem == null)
{
throw new ArgumentNullException("fileSystem");
}
this.fileSystem = fileSystem;
this.fileName = connectParams[fileNameParam];
if (string.IsNullOrEmpty(fileName))
{
throw new ArgumentException("Invalid or incomplete connection params");
}
try
{
Stream fs = fileSystem.OpenFile(fileName);
this.stream.SetStream(fs, true);
this.fsInfo = (IFileStreamInfo)fs;
Update();
}
catch (Exception)
{
Dispose();
throw;
}
}