public static TargetMapping DeriveMapping(string targetName, string prefix, TypeInfo typeInfo)
{
TargetMapping mapping = null;
var baseTypes = typeInfo.GetAllBaseTypes().Where(x => x.IsGenericType);
var firstGenericType = baseTypes.First();
// TODO: Consider root and namespace layers or nested types, when problems are better understood
if (TryGetMapping(firstGenericType, typeof(CodeFirstMetadataNamespace <>), typeof(TargetNamespaceMapping <>), targetName, prefix, ref mapping))
{
return(mapping);
}
if (TryGetMapping(firstGenericType, typeof(CodeFirstMetadataClass <>), typeof(TargetClassMapping <>), targetName, prefix, ref mapping))
{
return(mapping);
}
if (TryGetMapping(firstGenericType, typeof(CodeFirstMetadataMethod <>), typeof(TargetMethodMapping <>), targetName, prefix, ref mapping))
{
return(mapping);
}
if (TryGetMapping(firstGenericType, typeof(CodeFirstMetadataProperty <>), typeof(TargetPropertyMapping <>), targetName, prefix, ref mapping))
{
return(mapping);
}
if (TryGetMapping(firstGenericType, typeof(CodeFirstMetadataParameter <>), typeof(TargetParameterMapping <>), targetName, prefix, ref mapping))
{
return(mapping);
}
throw new NotImplementedException();
}
private static bool TryGetMapping(TypeInfo firstGenericType, Type sourceType, Type targetType,
string targetName, string prefix, ref TargetMapping mapping)
{
if (firstGenericType.GetGenericTypeDefinition() == sourceType.GetTypeInfo())
{
// Not crazy about this, but a lot of mapping work happens in the constructors here
mapping = ReflectionHelpers.CreateInstanceOfType <TargetMapping>(targetType.GetTypeInfo(),
firstGenericType, targetName, prefix, firstGenericType);
return(true);
}
return(false);
}
private static bool TryGetMapping(TypeInfo firstGenericType, Type sourceType, Type targetType,
string targetName, string prefix, ref TargetMapping mapping)
{
if (firstGenericType.GetGenericTypeDefinition() == sourceType.GetTypeInfo())
{
// Not crazy about this, but a lot of mapping work happens in the constructors here
mapping = ReflectionHelpers.CreateInstanceOfType<TargetMapping>(targetType.GetTypeInfo(),
firstGenericType, targetName, prefix, firstGenericType);
return true;
}
return false;
}
