10.仿简道云公式函数实战-逻辑函数-XOR

1. XOR函数

XOR 函数可返回所有参数的异或值。异或的含义是：两个逻辑值相同，返回 false，两个逻辑值不同，则返回 true。

2. 函数用法

XOR(logical1,logical2, …)

3. 函数示例

如，判断两个答案值是否一致时，可设置公式为

XOR(答案1<90,答案2<90)，答案一致时返回 false，不一致时返回 true。

4. 代码实战

首先我们在function包下创建logic包，在logic包下创建XorFunction类，代码如下：

package com.ql.util.express.self.combat.function.logic;

import cn.hutool.core.util.ObjectUtil;
import com.ql.util.express.ArraySwap;
import com.ql.util.express.InstructionSetContext;
import com.ql.util.express.OperateData;
import com.ql.util.express.instruction.op.OperatorBase;
import com.ql.util.express.self.combat.exception.FormulaException;

/**
 * 类描述:XOR函数
 *
 * @author admin
 * @version 1.0.0
 * @date 2023/11/21 17:13
 */
public class XorFunction extends OperatorBase {

    public XorFunction(String name) {
        this.name = name;
    }



    @Override
    public OperateData executeInner(InstructionSetContext parent, ArraySwap list) throws Exception {
        if (list.length < 2) {
            throw new FormulaException("\"" + this.aliasName + "\"操作至少要两个操作数");
        }
        OperateData rst = null;

        // 1. tj1  tj2  tj3  tj4  tj5
        OperateData flag = null;

        if (list.length == 2) {
            Object zero = list.get(0).getｏｂｊｅｃｔ(parent);
            Object one = list.get(1).getｏｂｊｅｃｔ(parent);
            if (ObjectUtil.equal(zero,one)) { //
                rst = new OperateData(Boolean.FALSE,Boolean.class);
            } else {
                rst = new OperateData(Boolean.TRUE,Boolean.class);
            }
        } else {
            Object zero = list.get(0).getｏｂｊｅｃｔ(parent);
            Object one = list.get(1).getｏｂｊｅｃｔ(parent);
            if (ObjectUtil.equal(zero,one)) { //
                rst = new OperateData(Boolean.FALSE,Boolean.class);
                flag = rst;
            } else {
                rst = new OperateData(Boolean.TRUE,Boolean.class);
                flag = rst;
            }
            Boolean flagB = (Boolean)flag.getｏｂｊｅｃｔ(parent);
            for (int i=2;i<list.length;i++) {
                OperateData tmp = (OperateData)list.get(i);
                Boolean tmpB = (Boolean)tmp.getｏｂｊｅｃｔ(parent);
                if (ObjectUtil.equal(tmpB,flagB)) {
                    flag = new OperateData(Boolean.FALSE,Boolean.class);
                    flagB = (Boolean)flag.getｏｂｊｅｃｔ(parent);
                    rst = flag;
                } else {
                    flag = new OperateData(Boolean.TRUE,Boolean.class);
                    flagB = (Boolean)flag.getObject(parent);
                    rst = flag;
                }
            }
        }
        return rst;
    }

}

把XorFunction类注册到公式函数入口类中，代码如下：

package com.ql.util.express.self.combat.ext;

import com.ql.util.express.ExpressRunner;
import com.ql.util.express.IExpressResourceLoader;
import com.ql.util.express.parse.NodeTypeManager;
import com.ql.util.express.self.combat.function.logic.AndFunction;
import com.ql.util.express.self.combat.function.logic.IfFunction;
import com.ql.util.express.self.combat.function.logic.IfsFunction;
import com.ql.util.express.self.combat.function.logic.XorFunction;

/**
 * 类描述: 仿简道云公式函数实战入口类
 *
 * @author admin
 * @version 1.0.0
 * @date 2023/11/21 15:29
 */
public class FormulaRunner extends ExpressRunner {

    public FormulaRunner() {
        super();
    }

    public FormulaRunner(boolean isPrecise, boolean isTrace) {
        super(isPrecise,isTrace);
    }

    public FormulaRunner(boolean isPrecise, boolean isStrace, NodeTypeManager nodeTypeManager) {
        super(isPrecise,isStrace,nodeTypeManager);
    }

    public FormulaRunner(boolean isPrecise, boolean isTrace, IExpressResourceLoader iExpressResourceLoader, NodeTypeManager nodeTypeManager) {
        super(isPrecise,isTrace,iExpressResourceLoader,nodeTypeManager);
    }

    @Override
    public void addSystemFunctions() {
        // ExpressRunner 的内部系统函数
        super.addSystemFunctions();
        // 扩展公式函数
        this.customFunction();
    }
    /***
     * 自定义公式函数
     */
    public void customFunction() {

        // AND函数
        this.addFunction("AND",new AndFunction("AND"));

        // IF函数
        this.addFunction("IF",new IfFunction("IF"));

        // IFS函数
        this.addFunction("IFS",new IfsFunction("IFS"));

        // XOR函数
        this.addFunction("XOR",new XorFunction("XOR"));
    }
}

创建测试用例：

package com.ql.util.express.self.combat;

import com.ql.util.express.DefaultContext;
import com.ql.util.express.self.combat.ext.FormulaRunner;
import org.junit.Test;

/**
 * 类描述: 实战测试类
 *
 * @author admin
 * @version 1.0.0
 * @date 2023/11/21 15:45
 */
public class CombatTest {

    @Test
    public void XOR() throws Exception{

        FormulaRunner formulaRunner = new FormulaRunner(true,true);
        // 创建上下文
        DefaultContext<String, ｏｂｊｅｃｔ> context = new DefaultContext<>();
        String express = "XOR(答案1>90,答案2<90)";
        context.put("答案1",95);
        context.put("答案2",80);
        Object object = formulaRunner.execute(express, context, null, true, true);
        System.out.println(object);

    }

}

运行结果：