package com.solution.rule.handler;

import cn.hutool.core.util.ObjectUtil;
import com.solution.rule.domain.RuleParam;

/**
 * 规则链抽象类
 */
public abstract class AbstractRuleChainHandler {


    private AbstractRuleChainHandler nextHandler;


    /**
     * 执行过滤方法
     * @param ruleParam
     * @return
     */
    public abstract RuleParam doHandler(RuleParam ruleParam);


    /**
     * 执行下一个处理器
     * @param ruleParam
     * @return
     */
    public RuleParam doNextHandler(RuleParam ruleParam){
        if(ObjectUtil.isEmpty(nextHandler) || ObjectUtil.isNotEmpty(ruleParam)){
            return ruleParam;
        }
        return nextHandler.doHandler(ruleParam);
    }

    /**
     * 设置下游handler
     * @param nextHandler
     */
    public void setNextHandler(AbstractRuleChainHandler nextHandler) {
        this.nextHandler = nextHandler;
    }

}