protected override async Task <IResult> DoInvoke(IInvocation invocation)
{
RpcInvocation inv = (RpcInvocation)invocation;
var methodName = RpcUtils.GetMethodName(invocation);
inv.SetAttachment(Constants.PathKey, GetUrl().Path);
inv.SetAttachment(Constants.VersionKey, _version);
IExchangeClient currentClient;
if (_clients.Length == 1)
{
currentClient = _clients[0];
}
else
{
currentClient = _clients[Interlocked.Increment(ref _index) % _clients.Length];
}
try
{
//Console.WriteLine("step5:" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff"));
var isAsync = RpcUtils.IsAsync(GetUrl(), invocation);
var isOneway = RpcUtils.IsOneway(GetUrl(), invocation);
var timeout = GetUrl().GetMethodParameter(methodName, Constants.TimeoutKey, Constants.DefaultTimeout.ToString());
if (isOneway)
{
var isSent = GetUrl().GetMethodParameter(methodName, Constants.SentKey, false);
await currentClient.SendAsync(inv, isSent);
return(new RpcResult());
}
else
{
int.TryParse(timeout, out var time);
var future = await currentClient.Request(inv, time);
return(new RpcResult(future));
}
}
catch (TimeoutException e)
{
throw new Exception("Invoke remote method timeout. method: " + invocation.MethodName + ", provider: " + GetUrl() + ", cause: " + e.Message, e);
}
catch (RemotingException e)
{
throw new Exception("Failed to invoke remote method: " + invocation.MethodName + ", provider: " + GetUrl() + ", cause: " + e.Message, e);
}
}