public async Task <TOut> SendCommand <TOut>(IChakadRequest <TOut> command, TimeSpan?timeout = null,
Action <Exception, TimeSpan> action = null, SendOptions options = null) where TOut : ChakadResult, new ()
{
var send = await pipeline.StartProcess(command, timeout, action, options);
return(send);
}
private async Task <TOut> InvokeMessageHandle <TOut>(IChakadRequest <TOut> command, Type eventHandler, object instance)
where TOut : ChakadResult, new()
{
var res = (from info in eventHandler.GetMethods()
where info.Name.ToLower() == "handle"
select info.Invoke(instance, new object[] { command }))
.FirstOrDefault();
var task1 = res as Task <TOut>;
if (task1 == null)
{
return(null);
}
if (task1.Exception != null)
{
return new TOut
{
Succeeded = false,
AggregatedExceptions = task1.Exception,
Message = task1.Exception.GetaAllMessages()
}
}
;
var task = await task1;
return(task);
}
public async Task <TOut> Send <TOut>(IChakadRequest <TOut> command, TimeSpan?timeout = null,
Action <Exception, TimeSpan> action = null, SendOptions options = null) where TOut : ChakadResult, new()
{
var commandType = command.GetType();
var baseType = command.GetType().BaseType;
if (baseType == null)
{
throw new Exception();
}
var eventHandler = ChakadContainer.ResolveCommandHandler(commandType);
if (eventHandler == null)
{
throw new ChakadPipelineNotFoundHandler(@"Not found handler for {0}", command);
}
if (timeout == null)
{
timeout = new TimeSpan(0, 0, 0, 0, 500);
}
if (action == null)
{
action = (ex, time) =>
{
//TODO log ex
Console.WriteLine(ex.ToString());
};
}
var policy = Policy.Handle <Exception>()
.WaitAndRetryAsync(1, retryAttempt => timeout.Value, action);
using (var scope = ChakadContainer.Autofac.BeginLifetimeScope(ChakadContainer.AutofacScopeName))
{
var handler = scope.ResolveOptional(eventHandler);
TOut result = null;
await policy.ExecuteAsync(async() =>
{
result = await InvokeMessageHandle(command, eventHandler, handler);
});
return(result);
}
}
private async Task <TOut> InvokeMessageHandle <TOut>(IChakadRequest <TOut> command,
Type eventHandler,
object instance)
where TOut : ChakadResult, new()
{
Logger.LogInformation(EventIdConstants.CommandStartInvokinMessageHandle,
command.CorrelationId,
$"InvokeMessageHandle. Correlation_Id is ={command.CorrelationId} Start Invoking Message Handler.");
var res = (from info in eventHandler.GetMethods()
where info.Name.ToLower() == "handle"
select info.Invoke(instance, new object[] { command }))
.FirstOrDefault();
var task1 = res as Task <TOut>;
if (task1 == null)
{
return(null);
}
if (task1.Exception != null)
{
Logger.LogError(EventIdConstants.CommandInvokingMessageHandleWasFaield, task1.Exception,
command.CorrelationId,
$"InvokeMessageHandle. Correlation_Id is ={command.CorrelationId} Error in Invoking Message Handle.");
return(new TOut
{
Succeeded = false,
AggregatedExceptions = task1.Exception,
Message = task1.Exception.GetaAllMessages()
});
}
var task = await task1;
Logger.LogInformation(EventIdConstants.CommandInvokingMessageHandleWasSuccessfully,
command.CorrelationId,
$"InvokeMessageHandle. Correlation_Id is ={command.CorrelationId} Message Handler invoked successfully.");
return(task);
}
public async Task <TOut> Handle(IChakadRequest <TOut> message)
{
return(await InternalHandle((T)message));
}
public async Task <TOut> StartProcess <TOut>(IChakadRequest <TOut> command, TimeSpan?timeout = null,
Action <Exception, TimeSpan> action = null, SendOptions options = null)
where TOut : ChakadResult, new()
{
var commandType = command.GetType();
Logger.LogInformation(EventIdConstants.CommandStartProcess, commandType.FullName, command, "Start Process");
var baseType = command.GetType().BaseType;
if (baseType == null)
{
Logger.LogError(EventIdConstants.CommandBaseTypeIsEmpty, command.CorrelationId, $"StartProcess. Correlation_Id is ={command.CorrelationId} Command base type is null.");
throw new Exception(@"Command base type is null");
}
var eventHandler = ChakadContainer.ResolveCommandHandler(commandType);
if (eventHandler == null)
{
var exeption = new ChakadPipelineNotFoundHandler(@"Not found handler for {0}", command.CorrelationId);
Logger.LogError(EventIdConstants.CommandNotFounddHandler, exeption, command.CorrelationId, $"StartProcess. Correlation_Id is ={command.CorrelationId}. Not found handler");
throw exeption;
}
if (timeout == null)
{
timeout = new TimeSpan(0, 0, 0, 0, 500);
}
if (action == null)
{
action = (ex, time) =>
{
//TODO log ex
Console.WriteLine(ex.ToString());
};
}
var policy = Policy.Handle <Exception>()
.WaitAndRetryAsync(1, retryAttempt => timeout.Value, action);
Logger.LogInformation(EventIdConstants.CommandInitializeCircuteBreaker, command.CorrelationId, $"Start Process. Correlation_Id is ={command.CorrelationId} Set Retry Count equals to 2 in case of any failures in invoking message handler.");
using (var scope = ChakadContainer.Autofac.BeginLifetimeScope(ChakadContainer.AutofacScopeName))
{
var handler = scope.ResolveOptional(eventHandler);
TOut result = null;
await policy.ExecuteAsync(async() =>
{
result = await InvokeMessageHandle(command, eventHandler, handler);
});
return(result);
}
}
