/// <summary>
/// Thos method used to publish event and handle exception, if happened
/// </summary>
/// <param name="item"></param>
protected virtual void onProcessQueueItem(IQueueItem item)
{
MethodInfo genericMethod = GetPublishMethodInfo(item.DeclaringEventType);
object typedEvent = BuildGenericQueueEvent(item);
object sender = BuildSender(item.DeclaringEventType);
try
{
genericMethod.Invoke(_eventBusService, new[] { typedEvent, sender });
onEventHandled(item);
}
// Exceptions from actual delegate are wrapped into TargetInvocationException by MethodBase.Invoke()
catch (TargetInvocationException ex)
{
RetryNeededException retry = ex.InnerException as RetryNeededException;
if (retry != null)
{
onEventRetried(item, retry);
}
else
{
onEventFailed(item, ex.InnerException);
}
}
}
/// <summary>
/// Thos method used to publish event and handle exception, if happened
/// </summary>
/// <param name="item"></param>
protected virtual void onProcessQueueItem(IQueueItem item)
{
MethodInfo genericMethod;
object typedEvent;
object sender;
// Any exception within following try/catch block is final
// report exception for handing and remove event from queue as failed
try
{
genericMethod = GetPublishMethodInfo(item.DeclaringEventType);
typedEvent = BuildGenericQueueEvent(item);
sender = BuildSender(item.DeclaringEventType);
}
catch (Exception ex)
{
onEventFailed(item, ex);
_eventBusService.Publish <Exception>(ex, this);
return;
}
// Event handling here
try
{
genericMethod.Invoke(_eventBusService, new[] { typedEvent, sender });
onEventHandled(item);
}
// Exceptions from actual delegate are wrapped into TargetInvocationException by MethodBase.Invoke()
catch (TargetInvocationException ex)
{
RetryNeededException retry = ex.InnerException as RetryNeededException;
if (retry != null)
{
onEventRetried(item, retry);
}
else
{
onEventFailed(item, ex.InnerException);
}
}
}
/// <summary>
/// Called when we need to retry event
/// </summary>
/// <param name="item"></param>
/// <param name="ex"></param>
protected virtual void onEventRetried(IQueueItem item, RetryNeededException ex)
{
_repository.UpdateItem(item);
}
