aiomsa

aiomsa is a Python 3.7+ framework built using asyncio. At its core, aiomsa provides a simple and standardized way to write xApps that can be deployed as microservices in Python.

Installation

aiomsa can be installed from PyPI.

pip install aiomsa

You can also get the latest code from GitHub.

poetry add git+https://github.com/facebookexternal/aiomsa

Getting Started

The follwing example shows how to use aiomsa to create a simple xApp for subscribing to the E2T service for a particular custom service model.

import asyncio

import aiomsa
import aiomsa.abc
from onos_ric_sdk_py import E2Client, SDLClient

from .models import MyModel


async def run(e2: aiomsa.abc.E2Client, e2_node_id: str) -> None:
   subscription = await e2.subscribe(
      e2_node_id,
      service_model_name="my_model",
      service_model_version="v1",
      subscription_id="my_app-my_model-sub",
      trigger=bytes(MyModel(param="foo")),
      actions=[
         aiomsa.abc.RICAction(
            id=1,
            type=aiomsa.abc.RICActionType.REPORT,
            subsequent_action_type=aiomsa.abc.RICSubsequentActionType.CONTINUE,
            time_to_wait=aiomsa.abc.RICTimeToWait.ZERO,
         )
      ],
   )

   async for (_header, message) in subscription:
      print(message)


async def main() -> None:
   async with E2Client(app_id="my_app", e2t_endpoint="e2t:5150") as e2, SDLClient(
      topo_endpoint="topo:5150"
   ) as sdl:
      async for e2_node in sdl.watch_e2_connections():
         asyncio.create_task(run(e2, e2_node.id))


if __name__ == "__main__":
   aiomsa.run(main())