private static void ResponseCallback(IAsyncResult asyncResult)
{
RpcHttpClientTransaction trans = (RpcHttpClientTransaction)asyncResult.AsyncState;
RpcResponseHeader header = null;
try {
var response = trans._webRequest.EndGetResponse(asyncResult);
trans._webResponse = response;
string warn = response.Headers.Get("Warning");
if (!string.IsNullOrEmpty(warn))
{
RpcErrorCode errCode = (RpcErrorCode)Enum.Parse(typeof(RpcErrorCode), warn);
if (errCode != RpcErrorCode.OK)
{
Exception ex = null;
if (response.ContentLength > 0)
{
Stream stream = response.GetResponseStream();
ex = BinarySerializer.Deserialize <Exception>(stream);
}
header = RpcResponseHeader.CreateError(errCode, ex);
}
else
{
SystemLog.Error(LogEventID.RpcFailed, "Unexcepted Message");
header = RpcResponseHeader.CreateError(RpcErrorCode.Unknown, null);
}
}
else
{
bool hasBody = (response.Headers["Null"] != "true");
header = RpcResponseHeader.CreateSuccess(hasBody);
}
} catch (WebException ex) {
if (ex.Status == WebExceptionStatus.Timeout)
{
header = RpcResponseHeader.CreateError(RpcErrorCode.TransactionTimeout, ex);
}
else
{
header = RpcResponseHeader.CreateError(RpcErrorCode.SendFailed, ex);
}
} catch (Exception ex) {
header = RpcResponseHeader.CreateError(RpcErrorCode.SendFailed, ex);
}
trans._callback(header);
trans._waitHandle.Set();
}
public void SendRequest <T>(RpcRequestHeader request, T args, Action <RpcResponseHeader> callback, int timeout)
{
_callback = callback;
_context = new RpcPipeContext();
_context.From = request.ServiceAtComputer;
_context.To = request.ToUri;
_context.ServiceName = request.Service;
_context.MethodName = request.Method;
_context.HasBody = request.HasBody;
_stream = new NamedPipeClientStream(_serverUri.Computer, _serverUri.PipeName, PipeDirection.InOut, PipeOptions.Asynchronous);
try {
timeout = timeout > 0 ? timeout : _channel.Timeout;
if (timeout > 0)
{
_stream.Connect(timeout);
}
else
{
_stream.Connect();
}
if (request.HasBody)
{
RpcPipeStreamHelper.WriteStream <T>(_stream, _context, args);
}
else
{
RpcPipeStreamHelper.WriteStream <RpcNull>(_stream, _context, null);
}
RpcResponseHeader header;
_context = RpcPipeStreamHelper.ReadStream(_stream, out _bodyBuffer);
if (_context.RetCode == RpcErrorCode.OK)
{
header = RpcResponseHeader.CreateSuccess(_context.HasBody);
}
else
{
if (_bodyBuffer != null)
{
Exception ex = BinarySerializer.FromByteArray <Exception>(_bodyBuffer);
header = RpcResponseHeader.CreateError(_context.RetCode, ex);
}
else
{
header = RpcResponseHeader.CreateError(_context.RetCode, null);
}
}
_callback(header);
} catch (Exception ex) {
var header = RpcResponseHeader.CreateError(RpcErrorCode.SendFailed, ex);
_callback(header);
} finally {
if (_stream != null)
{
_stream.Close();
}
}
}
