/// <summary>
///
/// </summary>
/// <param name="writeMode"></param>
/// <returns></returns>
public override bool Put(DeliveryWriteMode writeMode = DeliveryWriteMode.Overwrite)
{
if (string.IsNullOrWhiteSpace(Destination))
{
throw new NullReferenceException("Delivery Destination cannot be NULL or empty.");
}
if (!Directory.Exists(Path.GetDirectoryName(Destination)))
{
throw new DirectoryNotFoundException(string.Format("Specified directory does not exist: '{0}'", Destination));
}
if (File.Exists(Destination))
{
if (DeliveryWriteMode.Overwrite == writeMode)
{
File.Delete(Destination);
}
else if (DeliveryWriteMode.Exception == writeMode)
{
throw new NotSupportedException(string.Format("File already exists, and Overwrite flag has not been specified: '{0}'", Destination));
}
else if (DeliveryWriteMode.Ignore == writeMode)
{
_log.Warn(m => m("File already exists and flag is set to Ignore. Skipping.\n{0}", Destination));
return false;
}
}
try
{
int length = Source.Length;
using (FileStream fs = File.Create(Destination, length, FileOptions.None))
{
fs.Write(Source, 0, length);
fs.Flush();
fs.Close();
return true;
}
}
catch (Exception ex)
{
_log.Error(m => m("Unable to write file '{0}'...\n{1}", Destination, ex));
}
return false;
}
/// <summary>
///
/// </summary>
/// <param name="writeMode"></param>
/// <returns></returns>
public override bool Put(DeliveryWriteMode writeMode)
{
if (SaveFileCopy)
{
string filename = Path.Combine(Context.BaseDirectory, string.Format("SftpDeliveryFile-{0:yyyyMMdd-HHmmss}.csv", DateTime.Now));
_log.Info(m => m("Saving copy of SFTP upload file to '{0}'", filename));
Source.ToFile(filename, Source.Length);
}
_log.Trace(m => m("Beginning SFTP communication."));
using (Stream dataStream = new MemoryStream(Source))
{
_log.Trace(m => m("Getting SFTP client object..."));
_sftp = GetClient();
using (_sftp)
{
try
{
_log.Debug(m => m("Connecting to SFTP server ({0}@{1})...", Username, Hostname));
_sftp.Connect();
_log.Trace(m => m("Does file exist at destination (and Overwrite is disabled)?"));
if (DeliveryWriteMode.Overwrite != writeMode && _sftp.Exists(Destination))
{
if (DeliveryWriteMode.Exception == writeMode)
{
_log.Info(m => m("Destination file exists and Overwrite flag has not been specified: '{0}'", Destination));
throw new SftpPermissionDeniedException("File already exists and Overwrite is not enabled.");
}
// DeliverWriteMode.Ignore
_log.Info(m => m("Destination file exists and flag is set to Ignore. Skipping.\n{0}", Destination));
return false;
}
_log.Info(m => m("Uploading file via SFTP ({0}@{1}:{2}) WriteMode: '{3}'", Username, Hostname, Destination, writeMode.ToString("F")));
_sftp.UploadFile(dataStream, Destination, (DeliveryWriteMode.Overwrite == writeMode));
// if nothing blew up we succeeded (?)
return true;
}
catch (SshConnectionException ex)
{
_log.Warn(m => m("Unable to establish an SFTP connection to '{0}@{1}'\n{2}", Username, Hostname, ex));
throw;
}
catch(SftpPermissionDeniedException ex)
{
_log.Warn(m => m("Failed to upload file to '{0}@{1}:{2}'\n{3}", Username, Hostname, Destination, ex));
throw;
}
catch(SshException ex)
{
_log.Warn(m => m("SSH server returned the following error '{0}'\n{1}", ex.Message, ex));
throw;
}
finally
{
_log.Debug(m => m("Disconnecting from SFTP server..."));
if (_sftp != null && _sftp.IsConnected)
{
_sftp.Disconnect();
}
}
}
}
return false;
}
/// <summary> /// </summary> /// <param name="writeMode"></param> /// <returns></returns> public abstract bool Put(DeliveryWriteMode writeMode);
