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from typing import Any
from Item import Item
from PluginInterface import PluginInterface
from utils import get_param
class Plugin(PluginInterface):
def __init__(self, id: str, params: dict[str, Any]) -> None:
super().__init__(id, params)
self.filter_expr: str = get_param("filter_expr", params)
print(f"[FilterPlugin#{self.id}] initialized")
def validate_input_n(self, n: int) -> bool:
return n == 1
def process(self, inputs: list[list[Item]]) -> list[Item]:
input_feed: list[Item] = inputs[0]
print(f"[FilterPlugin#{self.id}] process called, n={len(input_feed)}")
expr = f"filter(lambda item: {self.filter_expr}, input_feed)"
ret = list(eval(expr, {"input_feed": input_feed}))
print(f"[FilterPlugin#{self.id}] process returning items, n={len(ret)}")
return ret
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