网关V1，添加批量写

gateway/config_manager.py

@@ -0,0 +1,87 @@
+import json
+import os
+import logging
+from config_validator import ConfigValidator
+
+class ConfigManager:
+    """配置文件管理器"""
+    
+    def __init__(self, config_path="../config/config.json"):
+        self.config_path = config_path
+        self.config = None
+        self.load_config()
+    
+    def load_config(self):
+        """加载配置文件"""
+        try:
+            if not os.path.exists(self.config_path):
+                # 尝试从备份恢复
+                backup_path = self.config_path + ".bak"
+                if os.path.exists(backup_path):
+                    logging.warning(f"Main config not found, using backup: {backup_path}")
+                    with open(backup_path, 'r') as src, open(self.config_path, 'w') as dst:
+                        config_data = src.read()
+                        dst.write(config_data)
+                else:
+                    raise FileNotFoundError(f"Configuration file not found: {self.config_path}")
+            
+            with open(self.config_path, 'r') as f:
+                self.config = json.load(f)
+                
+            # 验证配置
+            is_valid, error = ConfigValidator.validate_config(self.config)
+            if not is_valid:
+                logging.error(f"Invalid configuration: {error}")
+                # 尝试从备份恢复
+                backup_path = self.config_path + ".bak"
+                if os.path.exists(backup_path):
+                    logging.warning("Attempting to load from backup configuration")
+                    with open(backup_path, 'r') as f:
+                        self.config = json.load(f)
+                    is_valid, error = ConfigValidator.validate_config(self.config)
+                    if not is_valid:
+                        raise ValueError(f"Backup config also invalid: {error}")
+                else:
+                    raise ValueError(f"Invalid configuration: {error}")
+                    
+            return True, None
+        except Exception as e:
+            logging.error(f"Failed to load config: {e}")
+            self.config = {"plcs": []}
+            return False, str(e)
+    
+    def get_config(self):
+        """获取当前配置"""
+        return self.config
+    
+    def validate_config(self, config):
+        """验证配置是否有效"""
+        return ConfigValidator.validate_config(config)
+    
+    def save_config(self, new_config):
+        """保存配置文件"""
+        try:
+            # 验证配置
+            is_valid, error = self.validate_config(new_config)
+            if not is_valid:
+                return False, f"Invalid configuration: {error}"
+            
+            # 备份旧配置
+            backup_path = self.config_path + ".bak"
+            if os.path.exists(self.config_path):
+                with open(self.config_path, 'r') as src, open(backup_path, 'w') as dst:
+                    dst.write(src.read())
+            
+            # 保存新配置
+            with open(self.config_path, 'w') as f:
+                json.dump(new_config, f, indent=2)
+            
+            self.config = new_config
+            return True, None
+        except Exception as e:
+            logging.error(f"Failed to save config: {e}")
+            return False, str(e)
+    
+    def reload_config(self):
+        """重新加载配置"""
+        return self.load_config()