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);
}
}
运行日志
[2024-02-06 08:59:05,200] [main] (ExpressParse.java:340) DEBUG com.ql.util.express.parse.ExpressParse - 执行的表达式:XOR(答案1>90,答案2<90)
[2024-02-06 08:59:05,204] [main] (ExpressParse.java:341) DEBUG com.ql.util.express.parse.ExpressParse - 单词分解结果:{XOR},{(},{答案1},{>},{90},{,},{答案2},{<},{90},{)}
[2024-02-06 08:59:05,204] [main] (ExpressParse.java:345) DEBUG com.ql.util.express.parse.ExpressParse - 预处理后结果:{XOR},{(},{答案1},{>},{90},{,},{答案2},{<},{90},{)}
[2024-02-06 08:59:05,207] [main] (ExpressParse.java:370) DEBUG com.ql.util.express.parse.ExpressParse - 单词分析结果:XOR:FUNCTION_NAME,(:(,答案1:ID,>:>,90:CONST_INTEGER,,:,,答案2:ID,<:<,90:CONST_INTEGER,):)
[2024-02-06 08:59:05,209] [main] (ExpressParse.java:422) DEBUG com.ql.util.express.parse.ExpressParse - 最后的语法树:
1: STAT_BLOCK:STAT_BLOCK STAT_BLOCK
2: STAT_SEMICOLON:STAT_SEMICOLON STAT_SEMICOLON
3: FUNCTION_CALL:FUNCTION_CALL FUNCTION_CALL
4: XOR:CONST_STRING CONST
4: >:> >
5: 答案1:ID ID
5: 90:CONST_INTEGER CONST
4: <:< <
5: 答案2:ID ID
5: 90:CONST_INTEGER CONST
[2024-02-06 08:59:05,214] [main] (ExpressRunner.java:730) DEBUG com.ql.util.express.ExpressRunner -
1:LoadAttr:答案1
2:LoadData 90
3:OP : > OPNUMBER[2]
4:LoadAttr:答案2
5:LoadData 90
6:OP : < OPNUMBER[2]
7:OP : XOR OPNUMBER[2]
[2024-02-06 08:59:05,220] [main] (InstructionLoadAttr.java:34) DEBUG com.ql.util.express.instruction.detail.Instruction - LoadAttr:答案1:95
[2024-02-06 08:59:05,221] [main] (InstructionConstData.java:26) DEBUG com.ql.util.express.instruction.detail.Instruction - LoadData 90
[2024-02-06 08:59:05,221] [main] (InstructionOperator.java:46) DEBUG com.ql.util.express.instruction.detail.Instruction - >(答案1:95,90)
[2024-02-06 08:59:05,224] [main] (InstructionLoadAttr.java:34) DEBUG com.ql.util.express.instruction.detail.Instruction - LoadAttr:答案2:80
[2024-02-06 08:59:05,224] [main] (InstructionConstData.java:26) DEBUG com.ql.util.express.instruction.detail.Instruction - LoadData 90
[2024-02-06 08:59:05,224] [main] (InstructionOperator.java:46) DEBUG com.ql.util.express.instruction.detail.Instruction - <(答案2:80,90)
[2024-02-06 08:59:05,224] [main] (InstructionOperator.java:46) DEBUG com.ql.util.express.instruction.detail.Instruction - XOR(true,true)
false
