content: /**
   * Copyright (C) 2024 AIDC-AI
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com.alibaba.langengine.core.util;
  
  /**
   * 系统常量定义类
   * 
   * 核心功能：
   * - 定义配置文件名称常量
   * - 管理应用环境配置
   * - 提供回调和错误处理常量
   * - 统一系统级别的常量管理
   *
   * @author xiaoxuan.lp
   */
  public class Constants {
  
      /**
       * 框架配置文件名称
       */
      public static final String PROPERTIES_FILE_NAME = "langengine";
  
      /**
       * 应用文件配置名称
       */
      public static final String APPLICATION_PROPERTIES_FILE_NAME = "application";
  
      public static final String APPLICATION_PRODUCTION_PROPERTIES_FILE_NAME = "application-production";
      public static final String APPLICATION_STAGING_PROPERTIES_FILE_NAME = "application-staging";
      public static final String APPLICATION_TESTING_PROPERTIES_FILE_NAME = "application-testing";
      public static final String APPLICATION_LOCAL_PROPERTIES_FILE_NAME = "application-local";
  
  
  
  
      /**
       * 回调错误key
       */
      public static final String CALLBACK_ERROR_KEY = "langengine#error";
  }
  