private async Task <DownLoadedFileModel> DownLoadAFileProcessAsync(SftpFile file, SftpClient sftp, string SavedPath, SemaphoreSlim SemaphoreForRecord)
{
/// if an exception occurred, the LocalPath is null and ExceptionMessage has value in DownLoadFileModel.
return(await Task.Run(() =>
{
DownLoadedFileModel rslt = new DownLoadedFileModel
{
FtpPath = file.FullName,
LocalPath = $"{SavedPath}\\{Path.GetFileName(file.FullName)}",
};
SemaphoreForRecord.Wait();
try
{
using (FileStream wrt = new FileStream(rslt.LocalPath, FileMode.Create, FileAccess.ReadWrite))
{
sftp.DownloadFile(file.FullName, wrt);
wrt.Flush();
}
}
catch (Exception ex)
{
rslt.LocalPath = null;
rslt.ExceptionMessage = ex.Message;
}
finally
{
SemaphoreForRecord.Release();
}
return rslt;
}));
}
private async Task <DownLoadedFileModel> DownLoadAFileProcessAsync(string file, FTPSettings ftpSetting, SemaphoreSlim SemaphoreForRecord)
{
/// if an exception occurred, the LocalPath is null and ExceptionMessage has value in DownLoadFileModel.
return(await Task.Run(() =>
{
DownLoadedFileModel result = new DownLoadedFileModel();
result.FtpPath = file;
result.LocalPath = $"{ftpSetting.OutPutPath}\\{Path.GetFileName(file)}";
SemaphoreForRecord.Wait();
try
{
var fileRequest = GetFtpWebRequest(file, ftpSetting);
fileRequest.Method = WebRequestMethods.Ftp.DownloadFile;
using var response = fileRequest.GetResponse();
using var responseStream = response.GetResponseStream();
using var localFile = new FileStream(result.LocalPath, FileMode.Create, FileAccess.Write);
responseStream.CopyTo(localFile);
localFile.Flush();
}
catch (Exception ex)
{
result.LocalPath = null;
result.ExceptionMessage = ex.Message;
}
finally
{
SemaphoreForRecord.Release();
}
return result;
}));
}