Feeding_control_system/config/ini_manager.py

# config/config_manager.py
import logging
import os
import json
import configparser
import time
import threading
from common.logging_service import logging_service
from common.ini_handler import IniHandler


class IniManager:
    """
    settings.init配置管理类，读取API相关配置
    暂不支持多个配置文件
    """

    def __init__(self):
        """初始化实例变量"""
        self._DEFAULT_CONFIG_FILE = os.path.join(
            os.path.dirname(os.path.dirname(os.path.abspath(__file__))), 
            'settings.ini'
        )
        self.ini_handler = IniHandler(self._DEFAULT_CONFIG_FILE)
        # 默认配置值
        self._DEFAULT_API_MAX_RETRIES = 3
        self._DEFAULT_API_RETRY_INTERVAL = 1.0
        self._DEFAULT_API_TIMEOUT = 30.0
        self._DEFAULT_API_AUTH_TIMEOUT = 12 * 60 * 60  # 12小时
        self._DEFAULT_API_BASE_URL = "https://www.shnthy.com:9154"
        self._DEFAULT_API_LOGIN_MODEL = {
            "Program": 11,
            "SC": "1000000001",
            "loginName": "leduser",
            "password": "bfcda35cf4eba92d4583931bbe4ff72ffdfa8b5c9c4b72611bd33f5babee069d"
        }
        
        # 参数缓存字典，格式：{参数名: {'value': 值, 'mtime': 文件修改时间}}
        self._param_cache = {}
        # 缓存锁，确保多线程安全
        self._cache_lock = threading.RLock()
        # 文件修改时间缓存
        self._file_mtime_cache = None
        
    def _get_file_mtime(self):
        """获取文件修改时间，带缓存"""
        try:
            current_mtime = os.path.getmtime(self._DEFAULT_CONFIG_FILE)
            return current_mtime
        except (FileNotFoundError, OSError):
            raise FileNotFoundError(f"配置文件不存在或无法访问: settings.ini")
    
    def _read_config_value(self, section, key, default_value, value_type=str):
        """读取配置值，带参数级缓存
        
        Args:
            section: 配置段
            key: 配置键
            default_value: 默认值
            value_type: 值类型
            
        Returns:
            配置值
        """
        cache_key = f"{section}.{key}"
        current_mtime = self._get_file_mtime()
         # 检查缓存
        if cache_key in self._param_cache:
            cached_data = self._param_cache[cache_key] 
            # 如果文件未修改，直接返回缓存值
            if cached_data['value'] is not None and cached_data['mtime'] == current_mtime:
                return cached_data['value']

        try:
        # 获取值
            if value_type == int:
                value = self.ini_handler.get_int_value(section, key)
            elif value_type == float:
                value = self.ini_handler.get_float_value(section, key)
            else:
                value = self.ini_handler.get_value(section, key)

        except Exception as e:
            value = default_value
            logging_service.log_message(logging.ERROR,str(e))
        
        # 使用锁确保缓存操作的线程安全
        with self._cache_lock:          
            self._param_cache[cache_key] = {
                'value': value,
                'mtime': current_mtime
            }        
        return value
    
    @property
    def api_max_retries(self):
        """获取API最大重试次数"""
        return self._read_config_value('api', 'max_retries', self._DEFAULT_API_MAX_RETRIES, int)
    
    @property
    def api_retry_interval(self):
        """获取API重试间隔(秒)"""
        return self._read_config_value('api', 'retry_interval', self._DEFAULT_API_RETRY_INTERVAL, float)
    
    @property
    def api_timeout(self):
        """获取API请求超时时间(秒)"""
        return self._read_config_value('api', 'timeout', self._DEFAULT_API_TIMEOUT, float)
    
    @property
    def api_auth_timeout(self):
        """获取API授权失效前最大时间(秒)"""
        return self._read_config_value('api', 'auth_timeout', self._DEFAULT_API_AUTH_TIMEOUT, int)
    
    @property
    def api_base_url(self):
        """获取API基础URL"""
        return self._read_config_value('api', 'base_url', self._DEFAULT_API_BASE_URL, str)
    
    @property
    def api_login_url(self):
        """获取API登录URL"""
        return f"{self.api_base_url}/api/user/perlogin"

    @property
    def api_login_model(self):
        """获取API登录模型(字典格式)"""
        login_model_str = self._read_config_value('api', 'login_model', None, str)
        if login_model_str:
            try:
                value = json.loads(login_model_str)
            except Exception as e:
                print(f"解析API登录模型失败: {e}")
                value = self._DEFAULT_API_LOGIN_MODEL
        else:
            value = self._DEFAULT_API_LOGIN_MODEL
        
        return value
    
    @property
    def log_path(self):
        """获取日志文件路径"""
        return self._read_config_value('app', 'LOG_PATH', 'logs/app.log', str)
    
    @property
    def opcua_endpoint(self):
        """获取OPC UA服务器端点"""
        return self._read_config_value('app', 'OPCUA_ENDPOINT', 'opc.tcp://192.168.250.64:4840/zjsh_feed/server/', str)
        
    @property
    def upper_transmitter_ip(self):
        """获取上料斗变送器IP"""
        return self._read_config_value('app', 'UPPER_TRANSMITTER_IP', '192.168.250.63', str)
    
    @property
    def upper_transmitter_port(self):
        """获取上料斗变送器端口"""
        return self._read_config_value('app', 'UPPER_TRANSMITTER_PORT', 502, int)
    
    @property
    def lower_transmitter_ip(self):
        """获取下料斗变送器IP"""
        return self._read_config_value('app', 'LOWER_TRANSMITTER_IP', '192.168.250.66', str)
    
    @property
    def lower_transmitter_port(self):
        """获取下料斗变送器端口"""
        return self._read_config_value('app', 'LOWER_TRANSMITTER_PORT', 8234, int)
ini_manager = IniManager()


# if __name__ == '__main__':
#     logging_service.init_log(ini_manager.log_path)
#     try:

#         logging_service.log_message(logging.INFO, "测试INI配置管理类")
#         logging_service.log_message(logging.ERROR, f"api_max_retries")
#     except Exception as e:
#         logging_service.log_message(logging.ERROR,str(e))

#     time.sleep(1000)