private async Task <bool> PublishEventAsync(ReliableEvent @event, CancellationToken cancellationToken)
{
var actualEvent = Deserialize(@event);
if (actualEvent == null)
{
logger.LogWarning($"Unknown reliable event type: {@event.EventName}. The event won't be dispatched.");
return(true);
}
using (var scope = serviceProvider.CreateScope())
{
var mediator = scope.ServiceProvider.GetRequiredService <IMediator>();
var securityContext = scope.ServiceProvider.GetRequiredService <ISecurityContext>();
InitializeSecurityContext(@event, securityContext);
try
{
await mediator.Publish(actualEvent, cancellationToken);
return(true);
}
catch (BusinessException ex)
{
logger.LogError($"Business exception occurred while processing reliable event. Details: {ex}");
return(true);
}
catch (Exception ex)
{
logger.LogError($"Unknown error occured while processing reliable event. Details: {ex}");
return(false); // TODO: handle poison events
}
}
}
private static void InitializeSecurityContext(ReliableEvent @event, ISecurityContext securityContext)
{
var identity = new ClaimsIdentity();
identity.AddClaim(new Claim(BookFastClaimTypes.ObjectId, @event.User));
identity.AddClaim(new Claim(BookFastClaimTypes.TenantId, @event.Tenant));
var acceptor = (ISecurityContextAcceptor)securityContext;
acceptor.Principal = new ClaimsPrincipal(identity);
}
private Event Deserialize(ReliableEvent @event)
{
var type = eventMapper.GetEventType(@event.EventName);
return(type != null ? (Event)JsonConvert.DeserializeObject(@event.Payload, type) : null);
}
