/// <summary>
/// Called by infrastructure to automatically build filters from attributes on content types
/// </summary>
/// <param name="ehd">Event data when called via an event being raised after the repository is built</param>
/// <returns>Returns null (needed to have signature of an event processor)</returns>
public object BuildFilters(EventHubData ehd)
{
// Get filters on summary types
foreach (Type t in ContentTypeHierarchy.SummaryBaseTypes.Keys.Concat(typeof(Summary)))
{
foreach (PropertyInfo pi in t.GetProperties(BindingFlags.DeclaredOnly |
BindingFlags.Public |
BindingFlags.Instance)) // just the properties declared in this class, not any base class
{
var lfa = pi.GetCustomAttribute <FieldFilterAttribute>();
if (lfa != null)
{
Filters.Add(FieldFilter.Create(lfa, pi));
}
}
}
// Get filters on container types
foreach (Type t in ContentTypeHierarchy.AllContentTypes.Select(ct => Collator.Instance.ContainerType(ct)).Distinct())
{
foreach (PropertyInfo pi in t.GetProperties())
{
var lfa = pi.GetCustomAttribute <FieldFilterAttribute>();
if (lfa != null)
{
Filters.Add(FieldFilter.Create(lfa, pi));
}
}
}
// Get filters on container extension types
foreach (Type extT in CompositeTypeManager.Instance.ExtensionTypes)
{
Type baseT = extT.BaseType;
foreach (PropertyInfo pi in extT.GetProperties(BindingFlags.DeclaredOnly |
BindingFlags.Public |
BindingFlags.Instance))
{
var lfa = pi.GetCustomAttribute <FieldFilterAttribute>();
if (lfa != null)
{
PropertyInfo mappedPi = CompositeTypeManager.Instance.ExtendedTypes[baseT]
.GetProperty(pi.Name);
Filters.Add(FieldFilter.Create(lfa, mappedPi));
}
}
}
return(null);
}
/// <summary>
/// Raise an event with event data for processing
/// </summary>
/// <typeparam name="TEventData">The type of the event data</typeparam>
/// <param name="eventName">The name of the event being raised</param>
/// <param name="sender">The sender of the event</param>
/// <param name="eventData">The data which will be processed by all relevant processors</param>
/// <returns>The event data after all processing</returns>
public EventHubData ProcessEvent(string eventName, object sender, object eventData)
{
EventHubData data = new EventHubData
{
EventName = eventName,
Sender = sender,
Data = eventData
};
string leastSuperEvent = LeastSuperEvent(data.EventName);
if (leastSuperEvent == null)
{
return(data);
}
foreach (var proc in Processors[leastSuperEvent])
{
data.Data = proc.Processor(data);
}
return(data);
}
