| """ |
| Abstract base for all collectors. |
| Each collector must implement `collect()` which writes to the DB and returns a summary dict. |
| """ |
|
|
| from abc import ABC, abstractmethod |
| from datetime import datetime, timezone |
| import logging |
|
|
| logger = logging.getLogger(__name__) |
|
|
| class BaseCollector(ABC): |
| name: str = "base" |
|
|
| def run(self) -> dict: |
| start = datetime.now(timezone.utc) |
| logger.info("[%s] collection started", self.name) |
| try: |
| result = self.collect() |
| elapsed = (datetime.now(timezone.utc) - start).total_seconds() |
| logger.info("[%s] done in %.1fs — %s", self.name, elapsed, result) |
| return result |
| except Exception as exc: |
| logger.exception("[%s] collection failed: %s", self.name, exc) |
| return {"error": str(exc)} |
|
|
| @abstractmethod |
| def collect(self) -> dict: |
| """Fetch data and persist to DB. Return a summary dict.""" |
| ... |
|
|
