public static void CallEventHandler(Type aggregateRootType, MethodInfo eventHandler, object evnt, string propertyName, bool getWithLock)
{
if (string.IsNullOrEmpty(propertyName))
{
throw new ArgumentNullException("propertyName");
}
var eventType = evnt.GetType();
var propertyInfo = eventType.GetProperty(propertyName);
if (propertyInfo == null)
{
throw new EventSourcingException(string.Format("Property '{0}' not exist in event type '{1}'", propertyName, eventType.FullName));
}
var aggregateRootId = propertyInfo.GetValue(evnt, null);
if (aggregateRootId != null)
{
var logger = DependencyResolver.Resolve <ILoggerFactory>().Create("EventSourcing.AggregateRootEventHandlerCaller");
var aggregateRoot = AggregateRootLocator.GetAggregateRoot(aggregateRootType, aggregateRootId, getWithLock);
if (aggregateRoot != null)
{
if (logger.IsDebugEnabled)
{
logger.DebugFormat("Invoking AggregateRoot {0} EventHandler, event type:{1}.", aggregateRootType.Name, eventType.Name);
}
eventHandler.Invoke(aggregateRoot, new object[] { evnt });
if (logger.IsDebugEnabled)
{
logger.DebugFormat("Invoked AggregateRoot {0} EventHandler, event type:{1}.", aggregateRootType.Name, eventType.Name);
}
}
else
{
logger.ErrorFormat(
"Could not find the aggregate root as a subscriber of event, Please verify whether it was deleted from the database. AggregateRoot Id:{0}, Event Type:{1}, AggregateRootId PropertyName:{2}",
aggregateRootId,
eventType.FullName,
propertyName
);
}
}
}
private static AggregateRoot GetAggregateRootFromProperty(Type aggregateRootType, object sourceObject, string propertyName)
{
if (aggregateRootType == null || sourceObject == null || string.IsNullOrEmpty(propertyName))
{
return(null);
}
var propertyInfo = sourceObject.GetType().GetProperty(propertyName);
if (propertyInfo == null)
{
throw new EventSourcingException(string.Format("Property '{0}' not exist in object type '{1}'", propertyName, sourceObject.GetType().FullName));
}
var aggregateRootId = propertyInfo.GetValue(sourceObject, null);
if (aggregateRootId != null)
{
return(AggregateRootLocator.GetAggregateRoot(aggregateRootType, aggregateRootId));
}
return(null);
}