public void Upload(TransferInfo transferInfo, Stream data)
{
// Compute how much will be left over for the last chunk
long dataLength = data.Length;
long chunkSize = SendChunkSize == 0 ? 256000 : SendChunkSize;
long remainder = dataLength % chunkSize;
long chunkCount = dataLength / chunkSize;
// Handle the case of small files
if (chunkSize >= dataLength)
{
chunkSize = dataLength;
remainder = 0;
chunkCount = 1;
}
string sessionId = m_Proxy.BeginUploadSession(transferInfo);
for (long index = 0; index < chunkCount; index++)
{
byte[] chunk = new byte[chunkSize];
data.Read(chunk, (int)(index * chunkSize), (int)chunkSize);
m_Proxy.UploadChunk(sessionId, chunk);
}
if (remainder > 0)
{
byte[] chunk = new byte[remainder];
data.Read(chunk, (int)(chunkCount * chunkSize), (int)remainder);
m_Proxy.UploadChunk(sessionId, chunk);
}
m_Proxy.CompleteUpload(sessionId);
}
string IFileTransferService.BeginUploadSession(TransferInfo uploadInfo)
{
Guid sessionId = Guid.NewGuid();
lock (_BufferedSessions)
{
FileStream stream = File.OpenWrite(uploadInfo.FilePath);
_BufferedSessions.Add(sessionId, new Tuple<TransferInfo,Stream>(uploadInfo,stream));
}
return sessionId.ToString();
}
public void Download(TransferInfo transferInfo, Stream stream)
{
DownloadSessionInfo sessionInfo = m_Proxy.StartDownload(transferInfo);
for (int i = 0; i < sessionInfo.ChunkCount; i++)
{
byte[] chunk = m_Proxy.DownloadChunk(sessionInfo.SessionId, i);
stream.Write(chunk, 0, chunk.Length);
}
m_Proxy.DownloadComplete(sessionInfo.SessionId);
}
DownloadSessionInfo IFileTransferService.StartDownload(TransferInfo downloadInfo)
{
Guid sessionId = Guid.NewGuid();
FileStream stream = File.OpenRead(downloadInfo.FilePath);
long remainder;
long chunkCount;
long chunkSize;
CalculateChunkCountSizeAndRemainder(stream.Length, out remainder, out chunkCount, out chunkSize);
lock (_BufferedSessions)
{
_BufferedSessions.Add(sessionId, new Tuple<TransferInfo,Stream>(downloadInfo,stream));
}
DownloadSessionInfo downloadSessionInfo = new DownloadSessionInfo
{
ChunkCount = chunkCount + (remainder > 0 ? 1 : 0),
SessionId = sessionId.ToString()
};
return downloadSessionInfo;
}