java服务类缓存，策略模式实践

@Component
public class McoServiceContext {

    private static final Logger logger = LoggerFactory.getLogger(McoServiceContext.class);

    /**
     * 修改产品信息service注册表
     */
    private Map<OuterPlatformCodeEnum, ProductsUpdateService> productsUpdateServiceMap;

    /**
     * 订单相关service注册表
     */
    private Map<OuterPlatformCodeEnum, OrdersDealService> ordersDealServiceMap;

    @PostConstruct
    private void init() {
        productsUpdateServiceMap = new HashMap<>();
        ordersDealServiceMap = new HashMap<>();
        initProductsUpdateService();
        initOrdersDealService();
    }

    /**
     * 初始化修改产品service
     */
    private void initProductsUpdateService() {
        Map<String, ProductsUpdateService> result = SpringBeanUtil.getApplicationContext().getBeansOfType(ProductsUpdateService.class);
        if (CollectionUtils.isEmpty(result)) {
            logger.warn("初始化获取失败，没有发现策略实现 bean。");
            throw new RuntimeException("初始化配送单分发策略失败,没有对应的策略实现");
        }
        for (Map.Entry<String, ProductsUpdateService> entry : result.entrySet()) {
            String beanName = entry.getKey();
            ProductsUpdateService value = entry.getValue();
            OuterPlatformCodeEnum outerPlatformCodeEnum = value.operateType();
            if (null != outerPlatformCodeEnum){
                productsUpdateServiceMap.put(outerPlatformCodeEnum, value);
            }else{
                logger.info("初始化,operateType is null,bean:{}", beanName);
            }
        }
    }

    /**
     * @Author: wangwenying10
     * @Description: 订单service
     * @Date: 2021/8/12 20:14
     * @Param: []
     * @Return: void
     */
    private void initOrdersDealService() {
        Map<String, OrdersDealService> result = SpringBeanUtil.getApplicationContext().getBeansOfType(OrdersDealService.class);
        if (CollectionUtils.isEmpty(result)) {
            logger.warn("初始化获取失败，没有发现Service实现 bean。");
            throw new RuntimeException("初始化配送单分发Service失败,没有对应的Service实现");
        }
        for (Map.Entry<String, OrdersDealService> entry : result.entrySet()) {
            String beanName = entry.getKey();
            OrdersDealService value = entry.getValue();
            OuterPlatformCodeEnum outerPlatformCodeEnum = value.operateType();
            if (null != outerPlatformCodeEnum){
                ordersDealServiceMap.put(outerPlatformCodeEnum, value);
            }else{
                logger.info("初始化,operateType is null,bean:{}", beanName);
            }
        }
    }

    /**
     * @Author: wangwenying10
     * @Description: 获取产品修改service
     * @Date: 2021/8/6 18:25
     * @Param: [outerPlatformCodeEnum]
     * @Return: cn.com.gome.scot.alamein.mco.pop.job.client.ProductsUpdateService
     */
    public ProductsUpdateService getProductsUpdateService(OuterPlatformCodeEnum outerPlatformCodeEnum) {
        if (outerPlatformCodeEnum == null) {
            logger.error("[McoServiceContext.getProductsUpdateService] the input param is null, return [null].");
            return null;
        }
        return productsUpdateServiceMap.get(outerPlatformCodeEnum);
    }


    public OrdersDealService getOrdersDealService(OuterPlatformCodeEnum outerPlatformCodeEnum) {
        if (outerPlatformCodeEnum == null) {
            logger.error("[McoServiceContext.getOrdersDealService] the input param is null, return [null].");
            return null;
        }
        return ordersDealServiceMap.get(outerPlatformCodeEnum);
    }
}

service

@Service("zklOrdersDealService")
public class ZklOrdersDealServiceImpl implements OrdersDealService {


    @Override
    public Response<Boolean> refundApprove(OrderRefundApproveReq req) {
        return null;
    }

    @Override
    public OuterPlatformCodeEnum operateType() {
        return OuterPlatformCodeEnum.ZKL;
    }
}

使用

// 3、调用具体平台服务类
OuterPlatformCodeEnum platformEnum = OuterPlatformCodeEnum.getByCode(response.getData().getExtChannelCode());
ProductsUpdateService service = serviceContext.getProductsUpdateService(platformEnum);
service.pushProductsPrice(response.getData(), req);