private void OnSessionBeforeHandlerCall(HandlerCallContext callContext)
{
// If we profile the RPC handler calls start a stopwatch for the calling thread.
if (ProfileMethodCalls)
{
if (_callTimeCounter == null)
{
_callTimeCounter = new Stopwatch();
}
_callTimeCounter.Stop();
_callTimeCounter.Start();
}
var clientSessionOwner = callContext.Handler as IClientSessionOwner <TSession>;
if (clientSessionOwner != null)
{
TSession session = (TSession)callContext.Context;
clientSessionOwner.Session = session;
if (!clientSessionOwner.Authenticate(callContext.Method))
{
if (_callTimeCounter != null && _callTimeCounter.IsRunning)
{
_callTimeCounter.Stop();
}
throw new InvalidOperationException("RPC method call " + callContext.Handler.GetType() + "." +
callContext.Method.Name + " was not authenticated. The session is: " + session);
}
}
}
private void OnSessionAfterHandlerCall(HandlerCallContext callContext)
{
var clientSessionOwner = callContext.Handler as IClientSessionOwner <TSession>;
if (clientSessionOwner != null)
{
clientSessionOwner.Session = default(TSession);
}
// If we profile the RPC handler calls calculate and store the data for this call.
if (_callTimeCounter != null && _callTimeCounter.IsRunning)
{
long elapsedTicks = _callTimeCounter.ElapsedTicks;
_callTimeCounter.Stop();
string methodName = callContext.HandlerType.Name + "." + callContext.Method.Name;
lock (_methodNameToCallInfo) {
RpcCallInfo info;
if (!_methodNameToCallInfo.TryGetValue(methodName, out info))
{
info = _methodNameToCallInfo[methodName] = new RpcCallInfo
{
MethondName = methodName,
};
}
++info.NumCalls;
long us = (long)((elapsedTicks / (double)Stopwatch.Frequency) * 1000000);
info.TotalTimeUs += us;
if (us > info.MaxTimeUs)
{
info.MaxTimeUs = us;
}
if (us < info.MinTimeUs)
{
info.MinTimeUs = us;
}
}
}
}
private void ProcessHandlerCall(BinaryReader reader, byte ifaceOrdinal, object context)
{
HandlerData handlerData;
if (!_handlersData.TryGetValue(ifaceOrdinal, out handlerData))
{
Type ifaceType = RpcInterface.GetRpcInterface(ifaceOrdinal);
if (ifaceType == null)
{
throw new ProtocolViolationException("Unknown RPC interface ordinal received: " + ifaceOrdinal);
}
MethodInfo mi = RpcInterface.GetOrderedMethods(ifaceType)[reader.ReadByte()].MethodInfo;
throw new ProtocolViolationException("RPC call received for " + ifaceType.FullName + "." + mi.Name +
" which does not have a handler registered.");
}
byte methodOrdinal = reader.ReadByte();
RpcMethodInfo rpcMethodInfo = handlerData.InterfaceMethods[methodOrdinal];
MethodInfo methodInfo = rpcMethodInfo.MethodInfo;
byte callId = 0;
if (rpcMethodInfo.HasReturnType)
{
callId = reader.ReadByte();
}
var paramsInfo = methodInfo.GetParameters();
var paramValues = new object[paramsInfo.Length];
for (int i = 0, n = paramValues.Length; i < n; ++i)
{
paramValues[i] = BinarySerializer.DeserializeParameter(reader, paramsInfo[i]);
}
var callContext = new HandlerCallContext
{
HandlerType = handlerData.RpcInterfaceType,
Handler = handlerData.Handler,
Method = methodInfo,
CallId = callId,
Context = context,
};
if (OnBeforeHandlerCall != null)
{
OnBeforeHandlerCall(callContext);
}
callContext.Result = methodInfo.Invoke(handlerData.Handler, paramValues);
if (callContext.Result != null && OnDataOut != null)
{
Type resultFutureType = callContext.Result.GetType();
var stream = new MemoryStream(64);
var writer = new BinaryWriter(stream);
var header = (byte)(ResponseTypeFlag | callId);
writer.Write((byte)header);
resultFutureType.GetMethod("Serialize", BindingFlags.NonPublic | BindingFlags.Instance)
.Invoke(callContext.Result, new object[] { writer });
OnDataOut(stream.ToArray(), 0, (int)stream.Length);
}
if (OnAfterHandlerCall != null)
{
OnAfterHandlerCall(callContext);
}
}
