private async Task PersistEvents()
{
await CommandsEventsStore.PersistEvents(Events);
Events.Clear();
}
public async Task Handle <T>(T command) where T : Command
{
var commandHandlingMetric = MetricService.StartForType(command, "CommandHandling");
try
{
if (command == null)
{
throw new CommandCannotBeNullException(typeof(T).Name);
}
if (command.PublishedUTC != default)
{
Time.OverrideTime(command.PublishedUTC);
}
SetCorrelationProperties(command);
await ValidateCommand(command);
var commandKey = command.GetType();
if (!Registry.HasCommandHanlder(commandKey))
{
throw new MissingCommandHandlerException(commandKey.Name);
}
try
{
await CommandsEventsStore.PersistCommand(command);
var metric = MetricService.StartForType(command, "CommandProcessing");
await Registry.GetCommandHandler(commandKey).Handle(command, ServiceProvider);
metric.Stop();
await PersistEvents();
}
catch (TargetInvocationException ex)
{
await Publish(new CommandExecutionFailed(ex.InnerException ?? ex, command), command);
throw;
}
catch (Exception ex)
{
await Publish(new CommandExecutionFailed(ex, command), command);
throw;
}
finally
{
await PersistEvents();
}
}
finally
{
commandHandlingMetric.Stop();
}
}
