Rename module

src/config_manager.py/basic_application.py

@@ -0,0 +1,134 @@
+import asyncio
+import json
+import yaml  # pip install pyyaml
+import logging
+import logging.config
+from typing import Any
+import os
+
+
+logger = logging.getLogger(__name__)
+
+
+class ConfigManager:
+    DEFAULT_UPDATE_INTERVAL = 5.0
+    DEFAULT_WORK_INTERVAL = 2.0
+
+    def __init__(self, path: str):
+        self.path = path
+        self.config: Any = None
+        self._last_hash = None
+        self.update_interval = self.DEFAULT_UPDATE_INTERVAL
+        self.work_interval = self.DEFAULT_WORK_INTERVAL
+        self._halt = asyncio.Event()
+
+    def _read_file_sync(self) -> str:
+        with open(self.path, "r", encoding="utf-8") as f:
+            return f.read()
+
+    async def _read_file_async(self) -> str:
+        return await asyncio.to_thread(self._read_file_sync)
+
+    def _parse_config(self, data: str) -> Any:
+        ext = os.path.splitext(self.path)[1].lower()
+        if ext in (".yaml", ".yml"):
+            return yaml.safe_load(data)
+        else:
+            return json.loads(data)
+
+    def _update_intervals_from_config(self) -> None:
+        if not self.config:
+            return
+        # Берём интервалы из секции config обновления, с контролем типа и значений
+        upd = self.config.get("update_interval")
+        wrk = self.config.get("work_interval")
+
+        if isinstance(upd, (int, float)) and upd > 0:
+            self.update_interval = float(upd)
+            logger.info(f"Update interval set to {self.update_interval} seconds")
+        else:
+            self.update_interval = self.DEFAULT_UPDATE_INTERVAL
+
+        if isinstance(wrk, (int, float)) and wrk > 0:
+            self.work_interval = float(wrk)
+            logger.info(f"Work interval set to {self.work_interval} seconds")
+        else:
+            self.work_interval = self.DEFAULT_WORK_INTERVAL
+
+    def _apply_logging_config(self, config: dict) -> None:
+        try:
+            logging_config = config.get("logging")
+            if logging_config:
+                logging.config.dictConfig(logging_config)
+                logger.info("Logging configuration applied")
+        except Exception as e:
+            logger.error(f"Error applying logging config: {e}")
+
+    async def _update_config(self) -> None:
+        try:
+            data = await self._read_file_async()
+            current_hash = hash(data)
+            if current_hash != self._last_hash:
+                new_config = self._parse_config(data)
+                self.config = new_config
+                self._last_hash = current_hash
+
+                self._apply_logging_config(new_config)
+                self._update_intervals_from_config()
+
+                logger.info("Config updated: %s", self.config)
+        except Exception as e:
+            logger.error(f"Error reading/parsing config file: {e}")
+
+    def execute(self) -> None:
+        """
+        Метод для переопределения в подклассах.
+        Здесь может быть блокирующая работа.
+        Запускается в отдельном потоке.
+        """
+        pass
+
+    async def _worker_loop(self) -> None:
+        while not self._halt.is_set():
+            await asyncio.to_thread(self.execute)
+            await asyncio.sleep(self.work_interval)
+
+    async def _periodic_update_loop(self) -> None:
+        while not self._halt.is_set():
+            await self._update_config()
+            await asyncio.sleep(self.update_interval)
+
+    async def start(self) -> None:
+        self._halt.clear()
+        logger.info("ConfigManager started")
+        await asyncio.gather(
+            self._worker_loop(),
+            self._periodic_update_loop()
+        )
+
+    def stop(self) -> None:
+        self._halt.set()
+        logger.info("ConfigManager stopping...")
+
+
+
+
+# Пример наследования и переопределения execute
+class MyApp(ConfigManager):
+    def execute(self) -> None:
+        logger.info("Executing blocking work with config: %s", self.config)
+
+
+async def main():
+    app = MyApp("config.yaml")  # Можно config.json или config.yaml
+    task = asyncio.create_task(app.start())
+    await asyncio.sleep(20)
+    app.stop()
+    await task
+    logger.info("Work finished.")
+
+
+if __name__ == "__main__":
+    logging.basicConfig(level=logging.INFO,
+                        format="%(asctime)s [%(levelname)s] %(name)s: %(message)s")
+    asyncio.run(main())