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/**
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* 订单处理器类，负责处理订单的主要逻辑
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*/
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package com.orderprocessing;
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import com.orderprocessing.Logger;
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import com.orderprocessing.OrderValidator;
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import com.orderprocessing.OrderNotifier;
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import com.orderprocessing.DiscountStrategy;
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public class OrderProcessor {
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private OrderValidator validator;
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private OrderNotifier notifier;
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private Logger logger;
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private DiscountStrategy discountStrategy;
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/**
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* 构造方法，注入依赖
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* @param validator 订单验证器
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* @param notifier 订单通知器
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* @param logger 日志记录器
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*/
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public OrderProcessor(OrderValidator validator, OrderNotifier notifier, Logger logger) {
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this.validator = validator;
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this.notifier = notifier;
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this.logger = logger;
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}
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/**
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* 设置折扣策略
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* @param discountStrategy 折扣策略
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*/
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public void setDiscountStrategy(DiscountStrategy discountStrategy) {
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this.discountStrategy = discountStrategy;
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}
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/**
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* 验证订单
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* @param order 需要验证的订单
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* @return 如果验证通过返回true，否则返回false
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*/
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public boolean validateOrder(Order order) {
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logger.log("开始验证订单: " + order.getOrderId());
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boolean isValid = validator.isValid(order);
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if (isValid) {
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order.setStatus(Order.OrderStatus.VALIDATED);
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logger.log("订单验证通过: " + order.getOrderId());
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} else {
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logger.log("订单验证失败: " + order.getOrderId());
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// 记录详细错误信息
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for (String error : validator.getValidationErrors(order)) {
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logger.log("验证错误: " + error);
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}
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}
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return isValid;
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}
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/**
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* 处理订单
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* @param order 需要处理的订单
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* @return 如果处理成功返回true，否则返回false
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*/
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public boolean processOrder(Order order) {
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logger.log("开始处理订单: " + order.getOrderId());
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// 首先验证订单
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if (!validateOrder(order)) {
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return false;
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}
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// 应用折扣
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if (discountStrategy != null) {
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double discount = discountStrategy.calculateDiscount(order);
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order.applyDiscount(discount);
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logger.log("应用折扣: " + discount + " 到订单: " + order.getOrderId());
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}
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// 更新订单状态
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order.setStatus(Order.OrderStatus.PROCESSED);
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logger.log("订单处理完成: " + order.getOrderId() + ", 最终金额: " + order.getTotalAmount());
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// 发送通知
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notifier.notifyOrderProcessed(order);
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return true;
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}
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} |
