/// <exception cref="TypeLoadException"></exception>
public static ApiContext Convert(ServiceCallParam scp, object[] instances)
{
(MethodInfo method, object instance) = GetMethodInfo(scp.Action, instances);
var ps = method.GetParameters();
var args = GetArgs(ps, scp.Args, scp.Callback, scp.Token, scp.Stream);
return(new ApiContext(scp.Header, instance, method, args));
}
private async Task <ServiceCallParam> GetServiceCallParamAsync()
{
var onceCallParam = await _convert.GetOnceCallParamAsync();
var stream = _convert.GetRequestStream(onceCallParam.StreamLength);
ServiceCallParam serviceCallParam = new ServiceCallParam(onceCallParam,
async i => await _convert.SendCallbackAsync(i, onceCallParam.Action, onceCallParam.Args),
_serviceCts.Token, stream);
return(serviceCallParam);
}
public async Task HandleRequestAsync()
{
ServiceCallParam scp = await GetServiceCallParamAsync();
object ret;
try
{
var apiContext = ApiWrapper.Convert(scp, _instances);
ret = await _middlewareRegister.InvokeAsync(new MiddlewareContext(apiContext));
}
catch (Exception e)
{
//send fault
await _convert.SendFaultAsync(e, scp.Action, scp.Args);
return;
}
var hasStream = ret.TryGetStream(out Stream retStream);
//send result
await _convert.SendResultAsync(new CustomResult(ret, retStream.GetLength()), scp.Action, scp.Args);
//send stream
if (hasStream)
{
try
{
await Helper.SendStreamAsync(i => _convert.SendBufferAsync(i), () =>
_convert.SendBufferEndAsync(), retStream, scp.Token);
}
catch (TaskCanceledException)
{
await _convert.SendBufferCancelAsync();
}
catch (Exception)
{
await _convert.SendBufferFaultAsync();
}
}
}