hyperboria/nexus/pipe/processors/base.py

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from __future__ import annotations
import asyncio.exceptions
from typing import Iterable
from aiokit import AioThing
from izihawa_utils.importlib import instantiate_object
from tenacity import (
retry,
retry_if_exception_type,
wait_fixed,
)
class Processor(AioThing):
def filter(self, message) -> bool:
return True
async def process(self, message):
return message
async def process_bulk(self, messages: Iterable):
for message in messages:
await self.process(message)
class ActionProcessor(Processor):
def __init__(self, actions, filter):
super().__init__()
self.actions = [instantiate_object(action) for action in actions]
self.filter_object = instantiate_object(filter)
self.waits.append(self.filter_object)
self.waits.extend(self.actions)
def filter(self, message) -> bool:
return self.filter_object.filter(message)
@retry(retry=retry_if_exception_type(asyncio.exceptions.TimeoutError), wait=wait_fixed(5))
async def process(self, message):
for action in self.actions:
message = await action.do(message)