init
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雷雨
346
agents/config_loader.py
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346
agents/config_loader.py
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import sys
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import os
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import yaml
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import pymysql
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from pymysql.cursors import DictCursor
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import logging
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from typing import Optional, Dict, Any
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from pathlib import Path
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logger = logging.getLogger(__name__)
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class DatabaseConnectionError(Exception):
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"""数据库连接错误"""
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pass
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class ConfigLoadError(Exception):
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"""配置加载错误"""
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pass
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class AgentConfigLoader:
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"""Agent配置加载器类 - 支持从 config.yaml 和数据库加载配置"""
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def __init__(self, config_path: str = None, strict_mode: bool = True):
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"""
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初始化配置加载器
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Args:
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config_path: YAML配置文件路径，如果为None则自动查找
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strict_mode: 严格模式，如果为True则数据库连接失败时抛出异常
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"""
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# 自动查找 config.yaml
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if config_path is None:
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config_path = self._find_config_file()
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self.config = self._load_yaml_config(config_path)
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self.db_config = self.config.get('database', {}).get('starrocks', {})
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self.agents_config = self.config.get('agents', {})
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self.backend_config = self.config.get('backend', {})
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self.logging_config = self.config.get('logging', {})
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self.strict_mode = strict_mode
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self._connection_tested = False
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def _find_config_file(self) -> str:
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"""自动查找 config.yaml 文件"""
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# 1. 从当前文件所在目录向上查找
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current_dir = Path(__file__).parent
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# 向上查找最多3层
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for _ in range(3):
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config_path = current_dir / "config.yaml"
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if config_path.exists():
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logger.info(f"找到配置文件: {config_path}")
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return str(config_path)
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current_dir = current_dir.parent
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# 2. 默认路径（项目根目录）
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default_path = Path(__file__).parent.parent / "config.yaml"
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if default_path.exists():
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return str(default_path)
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raise FileNotFoundError("未找到 config.yaml 配置文件")
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def _load_yaml_config(self, config_path: str) -> dict:
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"""加载YAML配置文件"""
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try:
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with open(config_path, 'r', encoding='utf-8') as f:
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return yaml.safe_load(f)
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except Exception as e:
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logger.error(f"加载配置文件失败: {e}")
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return {}
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def _get_db_connection(self):
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"""获取数据库连接"""
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try:
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connection = pymysql.connect(
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host=self.db_config.get('host', 'localhost'),
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port=self.db_config.get('port', 9030),
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user=self.db_config.get('user', 'root'),
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password=self.db_config.get('password', ''),
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database=self.db_config.get('database', 'smart_home'),
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charset=self.db_config.get('charset', 'utf8mb4'),
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cursorclass=DictCursor,
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connect_timeout=5 # 5秒连接超时
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)
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self._connection_tested = True
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return connection
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except Exception as e:
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error_msg = f"数据库连接失败: {e}"
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logger.error(error_msg)
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if self.strict_mode:
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raise DatabaseConnectionError(error_msg) from e
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raise
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def get_default_ai_model_config(self) -> Optional[Dict[str, Any]]:
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"""
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获取默认的AI模型配置
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Returns:
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AI模型配置字典，包含 model, api_key, api_base, temperature, max_tokens
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"""
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try:
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conn = self._get_db_connection()
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cursor = conn.cursor()
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sql = """
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SELECT model_name, provider, api_key, api_base, temperature, max_tokens
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FROM ai_model_config
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WHERE is_default = TRUE AND is_active = TRUE
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LIMIT 1
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"""
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cursor.execute(sql)
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result = cursor.fetchone()
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cursor.close()
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conn.close()
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if result:
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logger.info(f"成功从数据库加载AI模型配置: {result['model_name']}")
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return {
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'model': result['model_name'],
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'api_key': result['api_key'],
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'api_base': result['api_base'],
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'temperature': float(result['temperature']),
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'max_tokens': result['max_tokens']
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}
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else:
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error_msg = "数据库中未找到默认AI模型配置"
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logger.error(error_msg)
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if self.strict_mode:
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raise ConfigLoadError(error_msg)
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return None
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except (DatabaseConnectionError, ConfigLoadError):
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raise
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except Exception as e:
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error_msg = f"获取AI模型配置失败: {e}"
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logger.error(error_msg)
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if self.strict_mode:
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raise ConfigLoadError(error_msg) from e
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return None
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def get_agent_config(self, agent_code: str) -> Optional[Dict[str, Any]]:
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"""
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获取Agent配置
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Args:
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agent_code: Agent代码标识
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Returns:
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Agent配置字典
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"""
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try:
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conn = self._get_db_connection()
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cursor = conn.cursor()
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sql = """
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SELECT agent_code, agent_name, host, port, description, is_enabled
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FROM agent_config
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WHERE agent_code = %s AND is_enabled = TRUE
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LIMIT 1
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"""
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cursor.execute(sql, (agent_code,))
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result = cursor.fetchone()
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cursor.close()
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conn.close()
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return result
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except Exception as e:
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logger.error(f"获取Agent配置失败: {e}")
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return None
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def get_agent_prompt(self, agent_code: str) -> Optional[str]:
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"""
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获取Agent的系统提示词
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Args:
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agent_code: Agent代码标识
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Returns:
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系统提示词文本
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Raises:
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ConfigLoadError: 严格模式下配置加载失败时抛出
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"""
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try:
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conn = self._get_db_connection()
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cursor = conn.cursor()
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sql = """
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SELECT prompt_text
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FROM agent_prompt
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WHERE agent_code = %s AND is_active = TRUE
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ORDER BY id DESC
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LIMIT 1
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"""
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cursor.execute(sql, (agent_code,))
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result = cursor.fetchone()
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cursor.close()
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conn.close()
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if result:
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logger.info(f"成功从数据库加载 {agent_code} 的系统提示词")
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return result['prompt_text']
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else:
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error_msg = f"数据库中未找到 {agent_code} 的系统提示词"
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logger.error(error_msg)
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if self.strict_mode:
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raise ConfigLoadError(error_msg)
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return None
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except (DatabaseConnectionError, ConfigLoadError):
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raise
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except Exception as e:
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error_msg = f"获取Agent提示词失败: {e}"
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logger.error(error_msg)
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if self.strict_mode:
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raise ConfigLoadError(error_msg) from e
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return None
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def get_device_config(self, device_code: str) -> Optional[Dict[str, Any]]:
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"""
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获取设备配置
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Args:
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device_code: 设备代码
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Returns:
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设备配置字典
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"""
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try:
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conn = self._get_db_connection()
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cursor = conn.cursor()
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sql = """
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SELECT device_code, device_name, device_type, agent_code,
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ip_address, token, model, extra_config, is_active
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FROM device_config
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WHERE device_code = %s AND is_active = TRUE
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LIMIT 1
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"""
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cursor.execute(sql, (device_code,))
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result = cursor.fetchone()
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cursor.close()
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conn.close()
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return result
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except Exception as e:
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logger.error(f"获取设备配置失败: {e}")
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return None
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def get_xiaomi_account(self) -> Optional[Dict[str, Any]]:
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"""
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获取默认小米账号配置
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Returns:
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小米账号配置字典
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"""
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try:
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conn = self._get_db_connection()
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cursor = conn.cursor()
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sql = """
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SELECT username, password, region
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FROM xiaomi_account
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WHERE is_default = TRUE AND is_active = TRUE
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LIMIT 1
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"""
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cursor.execute(sql)
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result = cursor.fetchone()
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cursor.close()
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conn.close()
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return result
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except Exception as e:
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logger.error(f"获取小米账号配置失败: {e}")
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return None
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# ==================== 新增：统一配置读取方法 ====================
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def get_agent_host_port(self, agent_name: str) -> tuple[str, int]:
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"""
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从 config.yaml 获取 Agent 的 host 和 port
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Args:
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agent_name: Agent 名称 (如 'conductor', 'air_conditioner')
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Returns:
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(host, port) 元组
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"""
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agent_cfg = self.agents_config.get(agent_name, {})
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host = agent_cfg.get('host', 'localhost')
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port = agent_cfg.get('port', 12000)
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return host, port
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def get_backend_config_value(self, key: str, default: Any = None) -> Any:
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"""
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获取后端配置值
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Args:
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key: 配置键，支持点号分隔的路径 (如 'python.host')
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default: 默认值
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Returns:
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配置值
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"""
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keys = key.split('.')
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value = self.backend_config
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for k in keys:
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if isinstance(value, dict):
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value = value.get(k)
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else:
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return default
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return value if value is not None else default
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def get_logging_config(self) -> Dict[str, Any]:
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"""获取日志配置"""
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return self.logging_config
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def get_all_agents_config(self) -> Dict[str, Dict[str, Any]]:
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"""获取所有 Agent 的配置"""
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return self.agents_config
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# 全局配置加载器实例
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_config_loader = None
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def get_config_loader(strict_mode: bool = True) -> AgentConfigLoader:
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"""
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获取全局配置加载器实例
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Args:
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strict_mode: 严格模式，如果为True则数据库连接失败时抛出异常
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"""
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global _config_loader
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if _config_loader is None:
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_config_loader = AgentConfigLoader(strict_mode=strict_mode)
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return _config_loader
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