AAS-FDO-Adapter

This is a simple adapter that allows you to automatically generate FDO from AAS. This is based on the basyx-python-SDK and the generated client for FDO-Manager-Service

Installation

1. To install the adapter, we should first generate the client for the FDO-Manager-Service. The instructions to generate the client can be found here.
2. After generating the client, add the generated client module to your python environment:

   pip install <path-to-generated-client>

3. Install the adapter:

   pip install git+https://github.com/rwth-iat/aas-fdo-adapter.git

Usage

For usage examples, please refer to the example.py file.

How it works

In this adapter we implemented a special DictObjectStore with integrated FDO Service - FdoServiceAasRegistryDictObjectStore.

• The DictObjectStore is a simple in-memory object store that allows you to store and retrieve AAS objects by their id. The DictObjectStore can be used by the AAS Server to store the AAS Objects.
• The FDO Service is a service that allows you to create, update, and delete FDOs.

We implemented FdoServiceAasRegistryDictObjectStore, which is a subclass of DictObjectStore that automatically creates, updates, or deletes FDOs based on the changes made in the AAS objects.

For example if an AAS Object is added to the FdoServiceAasRegistryDictObjectStore, the adapter will automatically create an FDO for this AAS Object. If the AAS Object is deleted, the adapter will delete the corresponding FDO. The Object Store has also a function to update the FDOs based on the changes made in the AAS Objects.