public async Task <JimuRemoteCallResultData> InvokeAsync(JimuServiceRoute service, IDictionary <string, object> paras,
string token)
{
if (paras == null)
{
paras = new ConcurrentDictionary <string, object>();
}
var address = await _addressSelector.GetAddressAsyn(service);
if (_retryTimes < 0)
{
_retryTimes = service.Address.Count;
}
JimuRemoteCallResultData result = null;
var retryPolicy = Policy.Handle <TransportException>()
.RetryAsync(_retryTimes,
async(ex, count) =>
{
address = await _addressSelector.GetAddressAsyn(service);
_logger.Debug(
$"FaultHandling,retry times: {count},serviceId: {service.ServiceDescriptor.Id},Address: {address.Code},RemoteServiceCaller excute retry by Polly for exception {ex.Message}");
});
var fallbackPolicy = Policy <JimuRemoteCallResultData> .Handle <TransportException>()
.FallbackAsync(new JimuRemoteCallResultData()
{
ErrorCode = "500", ErrorMsg = "error occur when communicate with server. server maybe have been down."
})
.WrapAsync(retryPolicy);
return(await fallbackPolicy.ExecuteAsync(async() =>
{
var client = _transportClientFactory.CreateClient(address);
if (client == null)
{
return new JimuRemoteCallResultData
{
ErrorCode = "400",
ErrorMsg = "Server unavailable!"
}
}
;
_logger.Debug($"invoke: serviceId:{service.ServiceDescriptor.Id}, parameters count: {paras.Count()}, token:{token}");
//Polly.Policy.Handle<>()
result = await client.SendAsync(new JimuRemoteCallData
{
Parameters = paras,
ServiceId = service.ServiceDescriptor.Id,
Token = token,
Descriptor = service.ServiceDescriptor
});
return result;
}));
}
public Task <JimuRemoteCallResultData> InvokeAsync(RemoteCallerContext context)
{
if (_retryTimes <= 0)
{
_retryTimes = context.Service.Address.Count;
}
var retryPolicy = Policy.Handle <TransportException>()
.RetryAsync(_retryTimes,
async(ex, count) =>
{
context.ServiceAddress = await _addressSelector.GetAddressAsyn(context.Service);
_logger.Debug(
$"FaultHandling,retry times: {count},serviceId: {context.Service.ServiceDescriptor.Id},Address: { context.ServiceAddress.Code},RemoteServiceCaller execute retry by Polly for exception {ex.Message}");
});
var fallbackPolicy = Policy <JimuRemoteCallResultData>
.Handle <TransportException>()
.FallbackAsync(new JimuRemoteCallResultData()
{
ErrorCode = "500",
ErrorMsg = "error occur when communicate with server. server maybe have been down."
})
.WrapAsync(retryPolicy);
return(fallbackPolicy.ExecuteAsync(() =>
{
return _next(context);
}));
}