Esempio n. 1
0
            private Message DoProcess(Message messageStream, int tryCount)
            {
                TcpConnection c = null;

                try {
                    // Check if there's a connection in the pool already,
                    c = connector.GetConnection(address);

                    lock (c) {
                        // Write the message.
                        char code = '\0';
                        if (serviceType == ServiceType.Manager) {
                            code = 'm';
                        } else if (serviceType == ServiceType.Root) {
                            code = 'r';
                        } else if (serviceType == ServiceType.Block) {
                            code = 'b';
                        } else if (serviceType == ServiceType.Admin) {
                            code = 'a';
                        }

                        BinaryWriter writer = new BinaryWriter(c.Stream, Encoding.Unicode);
                        writer.Write(code);

                        IMessageSerializer serializer = new BinaryRpcMessageSerializer();
                        serializer.Serialize(messageStream, c.Stream);
                        writer.Flush();

                        Message response = serializer.Deserialize(c.Stream, MessageType.Response);
                        if (response is MessageStream) {
                            return response;
                        } else {
                            return new ResponseMessage((RequestMessage) messageStream, (ResponseMessage) response);
                        }
                    }
                } catch (Exception e) {
                    // If this is a 'connection reset by peer' error, wipe the connection
                    // from the cache and retry connection,
                    if (tryCount == 0 &&
                        (e is SocketException ||
                         e is EndOfStreamException)) {
                        connector.InvalidateConnection(address);
                        // And retry,
                        return DoProcess(messageStream, tryCount + 1);
                    }

                    MessageError error;
                    if (e is EndOfStreamException) {
                        error = new MessageError(new Exception("EOF (is net password correct?)", e));
                    } else {
                        // Report this error as a msg_stream fault,
                        error = new MessageError(new Exception(e.Message, e));
                    }

                    Message responseMessage;
                    if (messageStream is MessageStream) {
                        responseMessage = new MessageStream(MessageType.Response);
                        ResponseMessage inner = new ResponseMessage();
                        inner.Arguments.Add(error);
                        ((MessageStream)responseMessage).AddMessage(inner);
                    } else {
                        responseMessage = ((RequestMessage) messageStream).CreateResponse();
                        responseMessage.Arguments.Add(error);
                    }

                    return responseMessage;
                } finally {
                    if (c != null)
                        connector.ReleaseConnection(c);
                }
            }
Esempio n. 2
0
            private Message DoProcess(Message messageStream, int tryCount)
            {
                try {
                    HttpWebRequest request = (HttpWebRequest) HttpWebRequest.Create(address.ToUri());
                    lock (request) {
                        // Write the message.
                        request.Headers["Service-Type"] = serviceType.ToString();
                        if (!String.IsNullOrEmpty(connector.userName) &&
                            !String.IsNullOrEmpty(connector.password))
                            request.Credentials = new NetworkCredential(connector.userName, connector.password);
                        request.Method = "POST";
                        Stream output = request.GetRequestStream();
                        connector.MessageSerializer.Serialize(messageStream, output);
                        output.Flush();
                        output.Close();

                        HttpWebResponse response = (HttpWebResponse) request.GetResponse();
                        if (response.StatusCode != HttpStatusCode.OK)
                            throw new InvalidOperationException();

                        Stream input = response.GetResponseStream();
                        ResponseMessage baseResponse = (ResponseMessage) connector.MessageSerializer.Deserialize(input, MessageType.Response);
                        return new ResponseMessage((RequestMessage)messageStream, baseResponse);
                    }
                } catch (Exception e) {
                    if (tryCount == 0 && e is WebException)
                        // retry ...
                        return DoProcess(messageStream, tryCount + 1);

                    MessageError error;
                    if (e is WebException) {
                        error = new MessageError(new Exception("Web Error: maybe a timeout in the request.", e));
                    } else {
                        // Report this error as a msg_stream fault,
                        error = new MessageError(new Exception(e.Message, e));
                    }

                    Message responseMessage;
                    if (messageStream is MessageStream) {
                        responseMessage = MessageStream.NewResponse();
                        ResponseMessage errorMessage = new ResponseMessage("error");
                        errorMessage.Arguments.Add(error);
                        ((MessageStream)responseMessage).AddMessage(errorMessage);
                    } else {
                        responseMessage = ((RequestMessage) messageStream).CreateResponse("error");
                        responseMessage.Arguments.Add(error);
                    }

                    return responseMessage;
                }
            }
Esempio n. 3
0
 public MessageErrorException(MessageError error)
 {
     this.error = error;
 }