private static void TimeoutCallback(object state, bool timedOut)
{
JsonRpcHttpClientTransaction trans = null;
try
{
trans = (JsonRpcHttpClientTransaction)state;
if (trans._registeredHandle != null)
{
trans._registeredHandle.Unregister(null);
}
if (timedOut)
{ // Timeout
var response = new JsonRpcResponse(JsonRpcErrorCode.TransactionTimeout); //RpcResponse.Create(RpcErrorCode.TransactionTimeout, null);
trans.OnCallback(response);
//释放资源
trans.Dispose();
}
}
catch (Exception ex)
{
SystemLog.Error(LogEventID.RpcFailed, ex, "TimeoutCallback");
}
}
public void SendRequest(JsonRpcRequest rpcRequest, int timeout, Action <JsonRpcResponse> callback)
{
// Console.WriteLine("发送请求11111111111111"+DateTime.Now.ToShortDateString());
TracingManager.Info(
delegate()
{
string module = null;
string action = null;
if (rpcRequest.Header != null)
{
module = rpcRequest.Header["UU-REQUEST-MODULE"] == null ? "" : rpcRequest.Header["UU-REQUEST-MODULE"];
action = rpcRequest.Header["UU-REQUEST-ACTION"] == null ? "" : rpcRequest.Header["UU-REQUEST-ACTION"];
}
_tracing.Info(string.Format("jsonrpc request:uri={0} module={1} action={2}\r\nrequestbody:{3}",
rpcRequest.ServiceUri, module, action, rpcRequest.ReqBody));
}
);
_sericeUri = rpcRequest.ServiceUri;
_callback = callback;
_webRequest = HttpWebRequest.Create(new Uri(_sericeUri));
_webRequest.Method = "POST";
_webRequest.Proxy = null;
_webRequest.ContentType = "application/json";
_webRequest.Headers.Add(HttpRequestHeader.From, rpcRequest.FromComputer);
_webRequest.Headers.Add(HttpRequestHeader.Pragma, rpcRequest.FromService);
if (rpcRequest.Header != null && rpcRequest.Header.Count > 0)
{
foreach (string key in rpcRequest.Header.AllKeys)
{
_webRequest.Headers.Add(key, rpcRequest.Header[key]);
}
}
byte[] buffer = null;
if (rpcRequest.ReqBody == null)
{
_webRequest.ContentLength = 0;
}
else
{
buffer = Encoding.UTF8.GetBytes(rpcRequest.ReqBody);//Request.BodyBuffer.GetByteArray();
_webRequest.ContentLength = buffer.Length;
}
timeout = timeout > 0 ? timeout : _timeOut;
if (timeout > 0)
{
_waitHandle = new ManualResetEvent(false);
_registeredHandle = ThreadPool.RegisterWaitForSingleObject(_waitHandle, new WaitOrTimerCallback(TimeoutCallback), this, timeout, true);
}
if (_webRequest.ContentLength == 0)
{
_webRequest.BeginGetResponse(new AsyncCallback(ResponseCallback), this);
}
else
{
_webRequest.BeginGetRequestStream(
delegate(IAsyncResult asyncResult)
{
JsonRpcHttpClientTransaction trans = (JsonRpcHttpClientTransaction)asyncResult.AsyncState;
try
{
WebRequest webReq = trans._webRequest;
Stream stream = webReq.EndGetRequestStream(asyncResult);
stream.Write(buffer, 0, buffer.Length);
stream.Close();
webReq.BeginGetResponse(new AsyncCallback(ResponseCallback), this);
}
catch (Exception ex)
{
var rpcResonse = new JsonRpcResponse(JsonRpcErrorCode.SendFailed, null, new JsonRpcException(_sericeUri, "send failed", ex), 0);
trans.OnCallback(rpcResonse);
}
},
this
);
}
}
//public bool Wait()
//{
// if (_waitHandle != null)
// return _waitHandle.WaitOne(_timeOut + 10000);
// return false;
//}
private static void ResponseCallback(IAsyncResult asyncResult)
{
//Console.WriteLine("接收应答222222222222222" + DateTime.Now.ToShortDateString());
JsonRpcHttpClientTransaction trans = (JsonRpcHttpClientTransaction)asyncResult.AsyncState;
JsonRpcResponse response = null;
WebResponse webResponse = null;
try
{
webResponse = trans._webRequest.EndGetResponse(asyncResult);
trans._webResponse = webResponse;
string warn = webResponse.Headers.Get("UU-RESPONSE-RC");
string lengthStr = webResponse.Headers.Get("UU-CONTENT-LENGTH");
int length = 0;
int.TryParse(lengthStr + "", out length);
int orginalErrorCode = 0;
int.TryParse(warn, out orginalErrorCode);
string respBody = null;
if (length > 0)
{
Stream stream = webResponse.GetResponseStream();
StreamReader readerStream = new StreamReader(stream);
respBody = readerStream.ReadToEnd();
readerStream.Close();
}
if (!string.IsNullOrEmpty(warn) && warn != "0")
{
JsonRpcErrorCode errCode = JsonRpcErrorCode.Unknown;
Enum.TryParse <JsonRpcErrorCode>(warn, true, out errCode);
response = new JsonRpcResponse(errCode, respBody, new JsonRpcException(trans._sericeUri, respBody, new Exception("rc != 0")), orginalErrorCode);
}
else
{
response = new JsonRpcResponse(JsonRpcErrorCode.OK, respBody);
}
TracingManager.Info(
delegate()
{
string responseCode = warn == null ? "0" : warn;
_tracing.Info(string.Format("jsonrpc response:response rc ={0}\r\nresponse body:{1}",
responseCode, respBody));
//if (responseCode != "0")
//{
// _tracing.ErrorFmt(response.Exception, "web data response error ,originalerrorcode is {0}", orginalErrorCode);
//}
}
);
}
catch (WebException ex)
{
if (ex.Status == WebExceptionStatus.Timeout)
{
response = new JsonRpcResponse(JsonRpcErrorCode.TransactionTimeout, new JsonRpcException(null, null, ex), 500);
}
else
{
response = new JsonRpcResponse(JsonRpcErrorCode.SendFailed, new JsonRpcException(null, null, ex), 500);
}
}
catch (Exception ex)
{
SystemLog.Error(LogEventID.RpcFailed, ex, "SendRequest failed");
response = new JsonRpcResponse(JsonRpcErrorCode.SendFailed, new JsonRpcException(null, null, ex), 500);
}
finally
{
if (webResponse != null)
{
webResponse.Close();
}
trans.OnCallback(response);
}
}