132 lines
4.5 KiB
Python
132 lines
4.5 KiB
Python
# common/config_manager.py
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import os
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import configparser
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from PySide6.QtCore import QTimer, QMutex, Signal, QObject
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class ConfigManager(QObject):
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_instance = None
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_mutex = QMutex()
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_initialized = False # 是否已完成初始化
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# 方量调节控制器的参数变化 (新的最小值、新的最大值、新的初始值)
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adjuster_params_changed = Signal(float, float, float)
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# 消息清理间隔变化（新时间间隔 单位:秒）
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msg_clean_interval_changed = Signal(int)
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def __new__(cls):
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cls._mutex.lock()
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try:
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if not cls._instance:
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cls._instance = super().__new__(cls)
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finally:
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cls._mutex.unlock()
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return cls._instance
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def __init__(self):
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# __init__ 只执行一次
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if self._initialized:
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return
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super().__init__()
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# 执行初始化逻辑
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self._init_config()
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self._start_refresh_timer()
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self._initialized = True
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def _init_config(self):
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"""初始化配置（加载默认值或配置文件）"""
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self.config_path = "config/constant_config.ini"
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# 默认配置
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# 系统状态消息 和 预警消息相关的默认配置
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self.MSG_KEEP_DAYS = 14 # 消息保留天数 单位: 天
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self.CLEAN_INTERVAL = 7 * 24 * 3600 # 清理周期（秒） 单位: 秒
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# 方量调节控件（ValueAdjuster）默认值
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self.ADJUSTER_MIN = 0.0 # 最小值
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self.ADJUSTER_MAX = 99.0 # 最大值
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self.ADJUSTER_INITIAL = 2.5 # 初始值
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# 首次加载配置文件
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self._load_config()
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def _load_config(self):
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"""从配置文件加载参数（覆盖默认值）"""
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if os.path.exists(self.config_path):
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config = configparser.ConfigParser()
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config.read(self.config_path, encoding='utf-8')
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# 消息相关的参数
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# 读取消息保留天数
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self.MSG_KEEP_DAYS = config.getint(
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"message_clean",
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"keep_days",
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fallback=self.MSG_KEEP_DAYS
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)
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# 读取清理周期（天→秒）
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self.CLEAN_INTERVAL = config.getint(
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"message_clean",
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"interval_days",
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fallback=self.CLEAN_INTERVAL // (24 * 3600)
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) * 24 * 3600
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self.msg_clean_interval_changed.emit(self.CLEAN_INTERVAL)
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# 方量调节控件（ValueAdjuster）参数
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# 读取最小值（fallback为当前默认值）
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min_value = config.getfloat(
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"adjuster_value",
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"min",
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fallback=self.ADJUSTER_MIN
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)
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# 读取最大值
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max_value = config.getfloat(
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"adjuster_value",
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"max",
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fallback=self.ADJUSTER_MAX
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)
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# 读取初始值
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initial_value = config.getfloat(
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"adjuster_value",
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"initial",
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fallback=self.ADJUSTER_INITIAL
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)
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# 验证配置的值的有效性
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if min_value <= max_value and min_value <= initial_value <= max_value:
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self.ADJUSTER_MIN = min_value
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self.ADJUSTER_MAX = max_value
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self.ADJUSTER_INITIAL = initial_value
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self.adjuster_params_changed.emit(self.ADJUSTER_MIN, self.ADJUSTER_MAX, self.ADJUSTER_INITIAL)
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def _start_refresh_timer(self):
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"""启动定时刷新, 每5分钟刷新一次配置"""
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self.refresh_timer = QTimer()
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self.refresh_timer.timeout.connect(self._load_config) # 定时重新加载
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self.refresh_timer.start(5 * 60 * 1000) # 5分钟（毫秒）
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# 测试 30秒刷新一次
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# self.refresh_timer.start(30 * 1000)
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def manual_refresh(self):
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"""手动刷新配置: 供立即生效使用"""
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# print("手动刷新配置...")
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self._load_config()
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# 获取消息保存天数
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def get_msg_keep_days(self):
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return self.MSG_KEEP_DAYS
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# 获取消息清理间隔
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def get_clean_interval(self):
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return self.CLEAN_INTERVAL
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# 获取方量调节器的最小值
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def get_adjuster_min(self):
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return self.ADJUSTER_MIN
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# 获取方量调节器的最大值
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def get_adjuster_max(self):
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return self.ADJUSTER_MAX
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# 获取方量调节器的初始值
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def get_adjuster_initial(self):
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return self.ADJUSTER_INITIAL |