public virtual void RegisterModelContextEvent <TSPObject, TDefinitionType>(
ModelEventType actionType,
Action <OnCreatingContext <TSPObject, TDefinitionType> > action)
where TDefinitionType : DefinitionBase
{
if (action == null)
{
return;
}
if (!ModelContextEvents.ContainsKey(actionType))
{
ModelContextEvents.Add(actionType, new List <object>());
}
ModelContextEvents[actionType].Add(action);
}
public virtual void InvokeOnModelContextEvents(object sender, ModelEventArgs eventArgs)
{
var eventType = eventArgs.EventType;
// type.. can be null, so?
var spObjectType = eventArgs.ObjectType;
if (!ModelContextEvents.ContainsKey(eventType))
{
return;
}
var targetEvents = ModelContextEvents[eventType];
// yea, yea..
foreach (MulticastDelegate action in targetEvents)
{
var modelContextType = typeof(OnCreatingContext <,>);
var nonDefinition = new Type[] { spObjectType, typeof(DefinitionBase) };
var withDefinition = new Type[] { spObjectType, eventArgs.ObjectDefinition.GetType() };
var modelNonDefInstanceType = modelContextType.MakeGenericType(nonDefinition);
var modelWithDefInstanceType = modelContextType.MakeGenericType(withDefinition);
object modelContextInstance = null;
if (action.Method.GetParameters()[0].ParameterType.IsAssignableFrom(modelNonDefInstanceType))
{
modelContextInstance = Activator.CreateInstance(modelNonDefInstanceType);
}
else if (action.Method.GetParameters()[0].ParameterType.IsAssignableFrom(modelWithDefInstanceType))
{
modelContextInstance = Activator.CreateInstance(modelWithDefInstanceType);
}
SetProperty(modelContextInstance, "Model", eventArgs.Model);
SetProperty(modelContextInstance, "CurrentModelNode", eventArgs.CurrentModelNode);
SetProperty(modelContextInstance, "Object", eventArgs.Object);
SetProperty(modelContextInstance, "ObjectDefinition", eventArgs.ObjectDefinition);
action.DynamicInvoke(modelContextInstance);
}
}
public virtual void InvokeOnModelContextEvents(object sender, ModelEventArgs eventArgs)
{
var objectType = typeof(object);
var eventType = eventArgs.EventType;
// type.. can be null, so?
var spObjectType = eventArgs.ObjectType;
if (!ModelContextEvents.ContainsKey(eventType))
{
TraceService.VerboseFormat((int)LogEventId.CoreCalls, "Cannot find ModelContextEvents for eventType: [{0}]", eventType);
return;
}
else
{
TraceService.VerboseFormat((int)LogEventId.CoreCalls, "Calling ModelContextEvents for eventType: [{0}]", eventType);
}
var targetEvents = ModelContextEvents[eventType];
// yea, yea..
foreach (MulticastDelegate action in targetEvents)
{
var modelContextType = typeof(OnCreatingContext <,>);
var nonDefinition = new Type[] { spObjectType, typeof(DefinitionBase) };
var withDefinition = new Type[] { spObjectType, eventArgs.ObjectDefinition.GetType() };
var nonObjectDefinition = new Type[] { objectType, typeof(DefinitionBase) };
var withObjectDefinition = new Type[] { objectType, eventArgs.ObjectDefinition.GetType() };
var modelNonDefInstanceType = modelContextType.MakeGenericType(nonDefinition);
var modelWithDefInstanceType = modelContextType.MakeGenericType(withDefinition);
var modelNonObjectDefInstanceType = modelContextType.MakeGenericType(nonObjectDefinition);
var modelWithObjectDefInstanceType = modelContextType.MakeGenericType(withObjectDefinition);
object modelContextInstance = null;
if (action.Method.GetParameters()[0].ParameterType.IsAssignableFrom(modelNonDefInstanceType))
{
modelContextInstance = Activator.CreateInstance(modelNonDefInstanceType);
}
else if (action.Method.GetParameters()[0].ParameterType.IsAssignableFrom(modelWithDefInstanceType))
{
modelContextInstance = Activator.CreateInstance(modelWithDefInstanceType);
}
else if (action.Method.GetParameters()[0].ParameterType.IsAssignableFrom(modelNonObjectDefInstanceType))
{
modelContextInstance = Activator.CreateInstance(modelNonObjectDefInstanceType);
}
else if (action.Method.GetParameters()[0].ParameterType.IsAssignableFrom(modelWithObjectDefInstanceType))
{
modelContextInstance = Activator.CreateInstance(modelWithObjectDefInstanceType);
}
if (modelContextInstance == null)
{
TraceService.ErrorFormat((int)LogEventId.ModelTreeModelContextEventIsNull,
"Cannot find model content instance for method: [{0}]. Throwing SPMeta2Exception.", action.Method);
throw new SPMeta2Exception("Cannot find a proper ModelContextEvents overload");
}
TraceService.VerboseFormat((int)LogEventId.CoreCalls, "Setting property: [Model]: [{0}]", eventArgs.Model);
SetProperty(modelContextInstance, "Model", eventArgs.Model);
TraceService.VerboseFormat((int)LogEventId.CoreCalls, "Setting property: [CurrentModelNode]: [{0}]", eventArgs.CurrentModelNode);
SetProperty(modelContextInstance, "CurrentModelNode", eventArgs.CurrentModelNode);
TraceService.VerboseFormat((int)LogEventId.CoreCalls, "Setting property: [Object]: [{0}]", eventArgs.Object);
SetProperty(modelContextInstance, "Object", eventArgs.Object);
TraceService.VerboseFormat((int)LogEventId.CoreCalls, "Setting property: [ObjectDefinition]: [{0}]", eventArgs.ObjectDefinition);
SetProperty(modelContextInstance, "ObjectDefinition", eventArgs.ObjectDefinition);
TraceService.VerboseFormat((int)LogEventId.CoreCalls, "Setting property: [ModelHost]: [{0}]", eventArgs.ModelHost);
SetProperty(modelContextInstance, "ModelHost", eventArgs.ModelHost);
TraceService.Verbose((int)LogEventId.CoreCalls, "Invoking event.");
action.DynamicInvoke(modelContextInstance);
}
}
