private IEnumerable <TType> GetRules <TType>(ICalidusRuleConfigurationFactory configFactory)
where TType : IRule
{
List <TType> result = new List <TType>();
foreach (Type aType in _parsed)
{
TType ruleInstance = default(TType);
//make sure to ignore the interface itself
if (typeof(TType).IsAssignableFrom(aType))
{
try
{
//not in default, try for a no-args constructor
if (aType.GetConstructor(new Type[] { }) != null)
{
ruleInstance = _instanceCreator.CreateInstanceOf <TType>(aType);
}
//try the factory
else
{
ruleInstance = _instanceCreator.CreateInstanceOf <TType>(aType, configFactory.GetRuleConfigurationFor(aType).ArgumentArray);
}
}
catch (Exception ex)
{
if (ruleInstance == null)
{
throw new CalidusException(String.Format(_exMsg, aType.Name), ex);
}
}
if (ruleInstance == null)
{
throw new CalidusException(String.Format(_exMsg, aType.Name));
}
result.Add(ruleInstance);
}
}
return(result);
}