Method get_backend

trendradar/storage/manager.py:150–174

获取存储后端实例

(self)

            return None

    def get_backend(self) -> StorageBackend:
        """获取存储后端实例"""
        if self._backend is None:
            resolved_type = self._resolve_backend_type()

            if resolved_type == "remote":
                self._backend = self._create_remote_backend()
                if self._backend:
                    print(f"[存储管理器] 使用远程存储后端")
                else:
                    print("[存储管理器] 回退到本地存储")
                    resolved_type = "local"

            if resolved_type == "local" or self._backend is None:
                from trendradar.storage.local import LocalStorageBackend

                self._backend = LocalStorageBackend(
                    data_dir=self.data_dir,
                    enable_txt=self.enable_txt,
                    enable_html=self.enable_html,
                    timezone=self.timezone,
                )
                print(f"[存储管理器] 使用本地存储后端 (数据目录: {self.data_dir})")

        return self._backend

    def pull_from_remote(self) -> int:
        """