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网站建设汇卓,网站推广优化价格,做网站怎么赚钱,可以做公众号的网站吗这里写目录标题定义接口定义抽象类定义主处理器分支处理器定义工厂demo 定义接口 public interface EntityHandler extends InitializingBean {MatchContentDTO match(MatchEntityDTO matchEntityDTO);String supportEntityType(); }定义抽象类 public abstract class Abstr…

这里写目录标题

- - 定义接口
  - 定义抽象类
  - 定义主处理器
  - 分支处理器
  - 定义工厂
  - demo

在这里插入图片描述

定义接口

public interface EntityHandler extends InitializingBean {MatchContentDTO match(MatchEntityDTO matchEntityDTO);String supportEntityType();
}

定义抽象类

public abstract class AbstractEntityHandler implements EntityHandler {@Overridepublic final MatchContentDTO match(MatchEntityDTO matchEntityDTO) {EntityHandler specialMatchHandler = getSpecialMatchHandler(matchEntityDTO);if (specialMatchHandler != null) {return specialMatchHandler.match(matchEntityDTO);}return doCommonMatch(matchEntityDTO);}public abstract MatchContentDTO doCommonMatch(MatchEntityDTO matchEntityDTO);public EntityHandler getSpecialMatchHandler(MatchEntityDTO matchEntityDTO) {return null;}}

定义主处理器


@Service
@Slf4j
public class EntitySystemHandler extends AbstractEntityHandler {@Overridepublic MatchContentDTO doCommonMatch(MatchEntityDTO matchEntityDTO) {log.info("EntitySystemHandler:{}", JSON.toJSONString(matchEntityDTO));return new MatchContentDTO();}@Overridepublic String supportEntityType() {return this.getClass().getName();}@Overridepublic void afterPropertiesSet() throws Exception {EntityFactory.register(this);}@Overridepublic EntityHandler getSpecialMatchHandler(MatchEntityDTO matchEntityDTO) {return super.getSpecialMatchHandler(matchEntityDTO);}
}

分支处理器

@Service
@Slf4j
public class TimeEntityHandler extends AbstractEntityHandler {@Overridepublic String supportEntityType() {return  this.getClass().getName();}@Overridepublic MatchContentDTO doCommonMatch(MatchEntityDTO matchEntityDTO) {log.info("TimeEntityHandler:{}", JSON.toJSONString(matchEntityDTO));return new MatchContentDTO();}@Overridepublic void afterPropertiesSet() throws Exception {EntityFactory.register(this);}
}

定义工厂

public class EntityFactory{private static final Map<String, EntityHandler> ENTITY_HANDLER_MAP = new HashMap<>();public static EntityHandler getEntityHandler(String entityType){return ENTITY_HANDLER_MAP.get(entityType);}public static void register(EntityHandler handler) {if (handler == null) {return;}ENTITY_HANDLER_MAP.put(handler.supportEntityType(), handler);}}

demo


@SpringBootTest
@RunWith(SpringRunner.class)
public class EntityTest {@Testpublic  void  getTest(){EntityHandler entityHandler = EntityFactory.getEntityHandler("system");MatchEntityDTO matchEntityDTO = new MatchEntityDTO();entityHandler.match(matchEntityDTO);}
}