public CallAggregationCallDescription GetOrAddCall(string methodName, IEnumerable <object> parameters)
{
CallAggregationCallDescription result = null;
lock (callLocker){
foreach (var item in Calls)
{
if (item.MethodName == methodName && parameters.SequenceEqual(item.Parameters))
{
result = item;
break;
}
}
if (result == null)
{
result = new CallAggregationCallDescription(methodName, parameters);
Calls.Add(result);
}
}
return(result);
}
private async Task <CallAggregationResult> CallServiceAsync(CallAggregationServiceDescription service, CallAggregationCallDescription call)
{
#if (!SILVERLIGHT)
Stopwatch sw = null;
if (call.MeasureDuration)
{
sw = new Stopwatch();
sw.Start();
}
#endif
var param1 = Expression.Parameter(typeof(CallAggregationService));
var method = service.ContractType.GetMethod(call.MethodName);
var returnType = method.ReturnType.GetGenericArguments().First();
var callServiceMethod = CallServiceMethodInfo.MakeGenericMethod(service.ContractType, returnType);
var delegateParam1 = Expression.Parameter(service.ContractType);
var callDelegate = Expression.Lambda(
Expression.Call(
delegateParam1,
method,
call.Parameters.Select((p, i) => Expression.Constant(p, method.GetParameters()[i].ParameterType))
),
delegateParam1);
var body = Expression.Call(
param1,
callServiceMethod,
callDelegate
);
var compiled = Expression.Lambda <Func <CallAggregationService, Task <object> > >(body, param1).Compile();
var result = await compiled(this);
var aggResult = call.CreateResult(result);
#if (!SILVERLIGHT)
if (call.MeasureDuration)
{
sw.Stop();
aggResult.Duration = sw.Elapsed;
}
#endif
return(aggResult);
}