69 lines
2.2 KiB
Python
69 lines
2.2 KiB
Python
import asyncio
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import os
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import logging
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import json
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from typing import Any
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from pathlib import Path
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from decnet.web.repository import BaseRepository
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logger = logging.getLogger("decnet.web.ingester")
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async def log_ingestion_worker(repo: BaseRepository) -> None:
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"""
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Background task that tails the DECNET_INGEST_LOG_FILE.json and
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inserts structured JSON logs into the SQLite repository.
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"""
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base_log_file = os.environ.get("DECNET_INGEST_LOG_FILE")
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if not base_log_file:
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logger.warning("DECNET_INGEST_LOG_FILE not set. Log ingestion disabled.")
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return
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json_log_path = Path(base_log_file).with_suffix(".json")
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position = 0
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logger.info(f"Starting JSON log ingestion from {json_log_path}")
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while True:
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try:
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if not json_log_path.exists():
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await asyncio.sleep(2)
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continue
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stat = json_log_path.stat()
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if stat.st_size < position:
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# File rotated or truncated
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position = 0
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if stat.st_size == position:
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# No new data
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await asyncio.sleep(1)
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continue
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with open(json_log_path, "r", encoding="utf-8", errors="replace") as f:
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f.seek(position)
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while True:
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line = f.readline()
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if not line:
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break # EOF reached
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if not line.endswith('\n'):
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# Partial line read, don't process yet, don't advance position
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break
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try:
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log_data = json.loads(line.strip())
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await repo.add_log(log_data)
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except json.JSONDecodeError:
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logger.error(f"Failed to decode JSON log line: {line}")
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continue
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# Update position after successful line read
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position = f.tell()
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except Exception as e:
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logger.error(f"Error in log ingestion worker: {e}")
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await asyncio.sleep(5)
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await asyncio.sleep(1)
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