/// <summary>
/// True if the given message are configure to start the saga
/// </summary>
/// <param name="sagaType"></param>
/// <param name="message"></param>
/// <returns></returns>
public static bool ShouldMessageStartSaga(Type sagaType, Type messageType)
{
List <Type> messageTypes;
SagaTypeToMessageTypesRequiringSagaStartLookup.TryGetValue(sagaType, out messageTypes);
if (messageTypes == null)
{
return(false);
}
return(messageTypes.Contains(messageType));
}
static void MessageTypeRequiresStartingSaga(Type messageType, Type sagaType)
{
List <Type> messages;
SagaTypeToMessageTypesRequiringSagaStartLookup.TryGetValue(sagaType, out messages);
if (messages == null)
{
messages = new List <Type>(1);
SagaTypeToMessageTypesRequiringSagaStartLookup[sagaType] = messages;
}
if (!messages.Contains(messageType))
{
messages.Add(messageType);
}
}
/// <summary>
/// True if the given message are configure to start the saga
/// </summary>
public bool IsAStartSagaMessage(Type sagaType, Type messageType)
{
List <Type> messageTypes;
SagaTypeToMessageTypesRequiringSagaStartLookup.TryGetValue(sagaType, out messageTypes);
if (messageTypes == null)
{
return(false);
}
if (messageTypes.Contains(messageType))
{
return(true);
}
return(messageTypes.Any(msgTypeHandleBySaga => msgTypeHandleBySaga.IsAssignableFrom(messageType)));
}
/// <summary>
/// Gets the saga type to instantiate and invoke if an existing saga couldn't be found by
/// the given finder using the given message.
/// </summary>
/// <param name="message"></param>
/// <param name="finder"></param>
/// <returns></returns>
public static Type GetSagaTypeToStartIfMessageNotFoundByFinder(object message, IFinder finder)
{
Type sagaEntityType;
FinderTypeToSagaEntityTypeLookup.TryGetValue(finder.GetType(), out sagaEntityType);
if (sagaEntityType == null)
{
return(null);
}
Type sagaType;
SagaEntityTypeToSagaTypeLookup.TryGetValue(sagaEntityType, out sagaType);
if (sagaType == null)
{
return(null);
}
List <Type> messageTypes;
SagaTypeToMessageTypesRequiringSagaStartLookup.TryGetValue(sagaType, out messageTypes);
if (messageTypes == null)
{
return(null);
}
if (messageTypes.Contains(message.GetType()))
{
return(sagaType);
}
foreach (var msgTypeHandleBySaga in messageTypes)
{
if (msgTypeHandleBySaga.IsInstanceOfType(message))
{
return(sagaType);
}
}
return(null);
}
