语法解析器续：case..when..语法解析计算

    // 将case..when.. 归结为sql类关键词的实现中
    public SqlKeywordAstHandler(TokenDescriptor masterToken,
                                Iterator<TokenDescriptor> candidates,
                                TokenTypeEnum tokenType) {
        super(masterToken, candidates, tokenType);
        String word = masterToken.getRawWord().toLowerCase();
        if("case".equals(word)) {
            completeCaseWhenTokens(candidates);
        }
    }

    /**
     * 实例case...when... 词汇列表
     *
     * @param candidates 待用词汇
     */
    private void completeCaseWhenTokens(Iterator<TokenDescriptor> candidates) {
        boolean syntaxClosed = false;
        while (candidates.hasNext()) {
            TokenDescriptor token = candidates.next();
            addExtendToken(token);
            if("end".equalsIgnoreCase(token.getRawWord())) {
                syntaxClosed = true;
                break;
            }
        }
        if(!syntaxClosed) {
            throw new SyntaxException("语法错误：case..when..未半闭合");
        }
    }

import com.my.mvc.app.common.exception.SyntaxException;
import com.my.mvc.app.common.helper.parser.SyntaxStatement;
import com.my.mvc.app.common.helper.parser.TokenDescriptor;
import com.my.mvc.app.common.helper.parser.TokenTypeEnum;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;

/**
 * 功能描述: case..when.. 真实数据运算帮助类
 *
 */
@Slf4j
public class CaseWhenElDataCalcHelper {

    /**
     * case when 完整语法
     */
    private SyntaxStatement caseWhenStmt;
    
    public CaseWhenElDataCalcHelper(SyntaxStatement caseWhenStmt) {
        this.caseWhenStmt = caseWhenStmt;
    }

    /**
     * 计算case..when的结果
     *
     * @param suppliers 原始所有值
     * @return 最终计算出的值
     */
    public String calcCaseWhenData(Map<String, String> suppliers) {
        List<TokenDescriptor> allTokens = caseWhenStmt.getAllTokens();
        TokenDescriptor masterToken = allTokens.get(0);
        if(!"case".equalsIgnoreCase(masterToken.getRawWord())) {
            throw new SyntaxException("不是case..when..表达式");
        }
        int tokenLen = allTokens.size();
        if(tokenLen < 3) {
            throw new SyntaxException("case..when..表达式语法错误");
        }
        TokenDescriptor closureToken = allTokens.get(tokenLen - 1);
        if(!"end".equalsIgnoreCase(closureToken.getRawWord())) {
            throw new SyntaxException("case..when..表达式未闭合");
        }
        // 暂只支持 case when xxx then xxx... end 语法
        // 不支持 case field_name when 1 then ‘1‘... end, 即单字段判定不支持
        List<TokenDescriptor> whenExpressionCandidates;
        for (int i = 1; i < tokenLen - 1; i++) {
            whenExpressionCandidates = new ArrayList<>();
            TokenDescriptor currentToken = allTokens.get(i);
            if("when".equalsIgnoreCase(currentToken.getRawWord())) {
                // 需走各分支逻辑
                while (i + 1 < tokenLen) {
                    TokenDescriptor nextToken = allTokens.get(i + 1);
                    if("then".equalsIgnoreCase(nextToken.getRawWord())) {
                        break;
                    }
                    whenExpressionCandidates.add(nextToken);
                    ++i;
                }
                if(judgeWhenExpression(whenExpressionCandidates, suppliers)) {
                    List<TokenDescriptor> resultCandidates
                            = scrapeCaseWhenResultCandidates(allTokens, i + 1);
                    return calcExpressionData(resultCandidates, suppliers);
                }
                // 直接进入下一轮迭代，then后面为空迭代
            }
            if("else".equalsIgnoreCase(currentToken.getRawWord())) {
                List<TokenDescriptor> resultCandidates
                        = scrapeCaseWhenResultCandidates(allTokens, i);
                return calcExpressionData(resultCandidates, suppliers);
            }
        }
        return null;
    }

    /**
     * 捞出所有的结果运算token列表
     *
     * @param allTokens 全局token表
     * @param start 偏移量
     * @return 获取到的所有结果运算token
     */
    private List<TokenDescriptor> scrapeCaseWhenResultCandidates(List<TokenDescriptor> allTokens,
                                                             int start) {
        List<TokenDescriptor> resultCandidates = new ArrayList<>();
        while (start + 1 < allTokens.size()) {
            TokenDescriptor nextToken = allTokens.get(start + 1);
            String word = nextToken.getRawWord();
            if("when".equalsIgnoreCase(word)
                    || "else".equalsIgnoreCase(word)
                    || "end".equalsIgnoreCase(word)) {
                break;
            }
            resultCandidates.add(nextToken);
            ++start;
        }
        return resultCandidates;
    }

    /**
     * 判断when条件是否成立
     *
     * @param operatorCandidates 可供运算的表达式token列表
     * @param suppliers 原始字段取值来源
     * @return true:符合该判定，false:判定失败
     */
    private boolean judgeWhenExpression(List<TokenDescriptor> operatorCandidates,
                                        Map<String, String> suppliers) {
        List<AndOrOperatorSupervisor> supervisors
                = partitionByPriority(operatorCandidates);
        boolean prevJudgeSuccess = false;
        for (AndOrOperatorSupervisor calc1 : supervisors) {
            Map<String, List<TokenDescriptor>> unitGroup = calc1.getUnitGroupTokens();
            String leftValue = calcExpressionData(unitGroup.get("LEFT"), suppliers);
            String op = unitGroup.get("OP").get(0).getRawWord();
            TokenTypeEnum resultType = getPriorDataTypeByTokenList(unitGroup.get("RIGHT"));
            boolean myJudgeSuccess;
            if("in".equals(op)) {
                myJudgeSuccess = checkExistsIn(leftValue, unitGroup.get("RIGHT"), resultType);
            }
            else if("notin".equals(op)) {
                myJudgeSuccess = !checkExistsIn(leftValue, unitGroup.get("RIGHT"), resultType);
            }
            else {
                String rightValue = calcExpressionData(unitGroup.get("RIGHT"), suppliers);
                myJudgeSuccess = checkCompareTrue(leftValue, op,
                                    rightValue, resultType);
            }
            TokenDescriptor prevType = calc1.getPrevType();
            TokenDescriptor nextType = calc1.getNextType();
            // 单条件判定
            if(prevType == null && nextType == null) {
                return myJudgeSuccess;
            }
            if(nextType == null) {
                return myJudgeSuccess;
            }
            prevJudgeSuccess = myJudgeSuccess;
            if("and".equalsIgnoreCase(nextType.getRawWord())) {
                if(!myJudgeSuccess) {
                    return false;
                }
                continue;
            }
            if("or".equalsIgnoreCase(nextType.getRawWord())) {
                if(myJudgeSuccess) {
                    return true;
                }
                continue;
            }
            log.warn("解析到未知的next连接判定符:{}", nextType);
            throw new SyntaxException("语法解析错误");
        }
        log.warn("未判定出结果，使用默认返回，请检查");
        return false;
    }

    /**
     * 根据值信息推断运算数据类型
     *
     * @param tokenList 结果列表（待运算）
     * @return 计算的数据类型，数字或字符串
     */
    private TokenTypeEnum getPriorDataTypeByTokenList(List<TokenDescriptor> tokenList) {
        for (TokenDescriptor token : tokenList) {
            if(token.getTokenType() == TokenTypeEnum.WORD_STRING) {
                return TokenTypeEnum.WORD_STRING;
            }
        }
        return TokenTypeEnum.WORD_NUMBER;
    }

    /**
     * 运算返回具体的 判定值
     *
     * @param resultCandidates 结果表达式token列表
     * @param suppliers 原始字段取值来源
     * @return true:符合该判定，false:判定失败
     */
    private String calcExpressionData(List<TokenDescriptor> resultCandidates,
                                      Map<String, String> suppliers) {
        // 暂时假设结果中不再提供运算处理
        TokenDescriptor first = resultCandidates.get(0);
        if(first.getTokenType() == TokenTypeEnum.WORD_NORMAL) {
            if("null".equalsIgnoreCase(first.getRawWord())) {
                return null;
            }
            return suppliers.get(first.getRawWord());
        }
        return unwrapStringToken(first.getRawWord());
    }

    /**
     * 判断给定值是否在列表中
     *
     * @param aValue 要判定的值
     * @param itemList 范围表
     * @return true:成立, false:不在其中
     */
    private boolean checkExistsIn(String aValue,
                                  List<TokenDescriptor> itemList,
                                  TokenTypeEnum valueType) {
        if(aValue == null) {
            return false;
        }
        BigDecimal aValueNumber = null;
        for (TokenDescriptor tk1 : itemList) {
            if(valueType == TokenTypeEnum.WORD_NUMBER) {
                if(aValueNumber == null) {
                    aValueNumber = new BigDecimal(aValue);
                }
                if(aValueNumber.compareTo(
                        new BigDecimal(tk1.getRawWord())) == 0) {
                    return true;
                }
                continue;
            }
            if(aValue.equals(unwrapStringToken(tk1.getRawWord()))) {
                return true;
            }
        }
        return false;
    }

    /**
     * 将字符串两边的引号去除，保持字符串属性
     *
     * @param wrappedStr 含引号的字符串,如 ‘abc‘,"abc"
     * @return abc 无引号包裹的字符串
     */
    private String unwrapStringToken(String wrappedStr) {
        if(wrappedStr == null || wrappedStr.length() == 0) {
            return null;
        }
        char[] values = wrappedStr.toCharArray();
        int i = 0;
        while (i < values.length - 1
                && (values[i] == ‘"‘ || values[i] == ‘\‘‘)) {
            i++;
        }
        int j = values.length - 1;
        while (j > 0
                && (values[j] == ‘"‘ || values[j] == ‘\‘‘)) {
            j--;
        }
        return new String(values, i, j - i + 1);
    }

    /**
     * 比较两个值ab是否基于op成立
     *
     * @param aValue 左值
     * @param op 比较运算符
     * @param bValue 右值
     * @param valueType 值类型, 主要是区分数字与字符
     * @return 是否等式成立, true:成立, false:不成立
     */
    private boolean checkCompareTrue(String aValue,
                                     String op,
                                     String bValue,
                                     TokenTypeEnum valueType) {
        // 首先进行相生性判定
        if("null".equals(bValue)) {
            bValue = null;
        }
        switch(op) {
            case "=":
                if(bValue == null) {
                    return aValue == null;
                }
                return bValue.equals(aValue);
            case "!=":
            case "<>":
                if(bValue == null) {
                    return aValue != null;
                }
                return !bValue.equals(aValue);
        }
        if(bValue == null) {
            log.warn("非null值不能用比较符号运算");
            throw new SyntaxException("语法错误");
        }
        // >=,<=,>,< 判定
        int compareResult = compareTwoData(aValue, bValue, valueType);
        switch(op) {
            case ">":
                return compareResult > 0;
            case ">=":
                return compareResult >= 0;
            case "<=":
                return compareResult <= 0;
            case "<":
                return compareResult < 0;
        }
        throw new SyntaxException("未知的运算符");
    }
    // 比较两个值大小ab
    private int compareTwoData(String aValue,
                               String bValue,
                               TokenTypeEnum tokenType) {
        bValue = unwrapStringToken(bValue);
        if(bValue == null) {
            // 按任意值大于null 规则处理
            return aValue == null ? 0 : 1;
        }
        if(tokenType == TokenTypeEnum.WORD_NUMBER) {
            return new BigDecimal(aValue).compareTo(
                    new BigDecimal(bValue));
        }
        return aValue.compareTo(unwrapStringToken(bValue));
    }

    // 将token重新分组，以便可以做原子运算
    private List<AndOrOperatorSupervisor> partitionByPriority(List<TokenDescriptor> tokens) {
        // 1. 取左等式token列表
        // 2. 取等式表达式
        // 3. 取右等式token列表
        // 4. 构建一个表达式，做最小分组
        // 5. 检查是否有下一运算符，如有则必定为and|or|(
        // 6. 保存上一连接判定符，新开一个分组
        // 7. 重复步骤1-6，直到取完所有token

        // 前置运算符，决定是否要运算本节点，以及结果的合并方式
        // 比如 and, 则当前点必须参与运算，如果前节点结果为false，则直接返回false
        // 否则先计算本节点
        TokenDescriptor preType = null;
        // 当前节点计算完成后，判断下一运算是否有必要触发
        // 为and时则当前为true时必须触发，为or时当前为false触发
        TokenDescriptor nextType = null;
        // key 为 left, op, right, 各value为细分tks
        Map<String, List<TokenDescriptor>> unitGroup = new HashMap<>();
        String currentReadPos = "LEFT";
        List<TokenDescriptor> smallGroupTokenList = new ArrayList<>();
        // 以上为描述单个运算的字符，使用一个list就可以描述无括号的表达式了
        List<AndOrOperatorSupervisor> bracketGroup = new ArrayList<>();
        AndOrOperatorSupervisor supervisor
                = new AndOrOperatorSupervisor(null, unitGroup);
        bracketGroup.add(supervisor);
        for (int i = 0; i < tokens.size(); i++) {
            TokenDescriptor token = tokens.get(i);
            String word = token.getRawWord().toLowerCase();
            TokenTypeEnum tokenType = token.getTokenType();
            // 忽略分隔符，假设只有一级运算，忽略空格带来的复杂优先级问题
            if(tokenType == TokenTypeEnum.CLAUSE_SEPARATOR) {
                continue;
            }
            // 字段直接判定
            if(tokenType == TokenTypeEnum.COMPARE_OPERATOR
                    && !",".equals(word)) {
                unitGroup.put("OP", Collections.singletonList(token));
                currentReadPos = "RIGHT";
                continue;
            }
            // is null, is not null 解析
            if("is".equals(word)) {
                while (i + 1 < tokens.size()) {
                    TokenDescriptor nextToken = tokens.get(i + 1);
                    if("null".equalsIgnoreCase(nextToken.getRawWord())) {
                        TokenDescriptor opToken = new TokenDescriptor("=",
                                TokenTypeEnum.COMPARE_OPERATOR);
                        unitGroup.put("OP", Collections.singletonList(opToken));
                        currentReadPos = "RIGHT";
                        List<TokenDescriptor> curTokenList = unitGroup.computeIfAbsent(
                                currentReadPos, r -> new ArrayList<>());
                        curTokenList.add(nextToken);
                        // 跳过1个token
                        i += 1;
                        break;
                    }
                    if("not".equalsIgnoreCase(nextToken.getRawWord())) {
                        if(i + 2 >= tokens.size()) {
                            throw new SyntaxException("语法错误3: is");
                        }
                        nextToken = tokens.get(i + 2);
                        if(!"null".equalsIgnoreCase(nextToken.getRawWord())) {
                            throw new SyntaxException("语法错误4: is");
                        }
                        TokenDescriptor opToken = new TokenDescriptor("!=",
                                TokenTypeEnum.COMPARE_OPERATOR);
                        unitGroup.put("OP", Collections.singletonList(opToken));
                        currentReadPos = "RIGHT";
                        List<TokenDescriptor> curTokenList = unitGroup.computeIfAbsent(
                                currentReadPos, r -> new ArrayList<>());
                        curTokenList.add(nextToken);
                        // 跳过2个token
                        i += 2;
                        break;
                    }
                }
                continue;
            }
            // in (x,x,xx) 语法解析
            if("in".equals(word)) {
                TokenDescriptor opToken = new TokenDescriptor("in",
                        TokenTypeEnum.COMPARE_OPERATOR);
                unitGroup.put("OP", Collections.singletonList(opToken));
                currentReadPos = "RIGHT";
                List<TokenDescriptor> curTokenList = unitGroup.computeIfAbsent(
                        currentReadPos, r -> new ArrayList<>());
                i = parseInItems(tokens, curTokenList, i);
                continue;
            }
            // not in (x,xxx,xx) 语法解析
            if("not".equals(word)) {
                if(i + 1 > tokens.size()) {
                    throw new SyntaxException("语法错误：not");
                }
                TokenDescriptor nextToken = tokens.get(i + 1);
                // 暂不支持 not exists 等语法
                if(!"in".equalsIgnoreCase(nextToken.getRawWord())) {
                    throw new SyntaxException("不支持的语法：not");
                }
                TokenDescriptor opToken = new TokenDescriptor("notin",
                        TokenTypeEnum.COMPARE_OPERATOR);
                unitGroup.put("OP", Collections.singletonList(opToken));
                currentReadPos = "RIGHT";
                List<TokenDescriptor> curTokenList = unitGroup.computeIfAbsent(
                        currentReadPos, r -> new ArrayList<>());
                i = parseInItems(tokens, curTokenList, i + 1);
                continue;
            }
            // 暂只解析一级，无括号情况
            if("and".equals(word)
                    || "or".equals(word)) {
                supervisor.setNextType(token);
                // 滚动到下一运算分支
                unitGroup = new HashMap<>();
                supervisor = new AndOrOperatorSupervisor(token, unitGroup);
                bracketGroup.add(supervisor);
                currentReadPos = "LEFT";
                continue;
            }
            List<TokenDescriptor> curTokenList = unitGroup.computeIfAbsent(
                    currentReadPos, r -> new ArrayList<>());
            curTokenList.add(token);
        }

        return bracketGroup;
    }

    /**
     * 解析in中的所有元素到结果中
     *
     * @param tokens 所有token
     * @param curTokenList 当前结果表
     * @param start in 开始的地方
     * @return in 语法结束位置
     */
    private int parseInItems(List<TokenDescriptor> tokens,
                             List<TokenDescriptor> curTokenList,
                             int start) {
        while (start + 1 < tokens.size()) {
            TokenDescriptor nextToken = tokens.get(++start);
            String nextWord = nextToken.getRawWord();
            if("(".equals(nextWord)
                    || ",".equals(nextWord)) {
                // in 开始
                continue;
            }
            if(")".equals(nextWord)) {
                break;
            }
            curTokenList.add(nextToken);
        }
        return start;
    }

    /**
     * 最小运算单元描述符
     */
    private class AndOrOperatorSupervisor {
        // 前置运算符，决定是否要运算本节点，以及结果的合并方式
        // 比如 and, 则当前点必须参与运算，如果前节点结果为false，则直接返回false
        // 否则先计算本节点
        TokenDescriptor prevType;
        // 当前节点计算完成后，判断下一运算是否有必要触发
        // 为and时则当前为true时必须触发，为or时当前为false触发
        TokenDescriptor nextType;
        // key 为 left, op, right, 各value为细分tks
        Map<String, List<TokenDescriptor>> unitGroupTokens;

        public AndOrOperatorSupervisor(TokenDescriptor prevType,
                                       Map<String, List<TokenDescriptor>> unitGroupTokens) {
            this.prevType = prevType;
            this.unitGroupTokens = unitGroupTokens;
        }

        public void setNextType(TokenDescriptor nextType) {
            this.nextType = nextType;
        }

        public TokenDescriptor getPrevType() {
            return prevType;
        }

        public TokenDescriptor getNextType() {
            return nextType;
        }

        public Map<String, List<TokenDescriptor>> getUnitGroupTokens() {
            return unitGroupTokens;
        }

        @Override
        public String toString() {
            return StringUtils.join(
                    unitGroupTokens.get("LEFT").stream()
                            .map(TokenDescriptor::getRawWord)
                            .collect(Collectors.toList()), ‘ ‘)
                    + unitGroupTokens.get("OP").get(0).getRawWord()
                    +
                    StringUtils.join(
                        unitGroupTokens.get("RIGHT").stream()
                            .map(TokenDescriptor::getRawWord)
                            .collect(Collectors.toList()), ‘ ‘) +
                    ", prev=" + prevType
                    + ", next=" + nextType
                    ;
        }
    }
}

import com.my.mvc.app.common.helper.CaseWhenElDataCalcHelper;
import com.my.mvc.app.common.helper.SimpleSyntaxParser;
import com.my.mvc.app.common.helper.parser.ParsedClauseAst;
import lombok.extern.slf4j.Slf4j;
import org.junit.Assert;
import org.junit.Test;

import java.util.HashMap;
import java.util.Map;

@Slf4j
public class CaseWhenElDataCalcHelperTest {
    @Test
    public void testCaseWhenSimple1() {
        String condition;
        ParsedClauseAst parsedClause;
        CaseWhenElDataCalcHelper helper;
        Map<String, String> rawData;
        condition = "case \n" +
                "\twhen (kehu_phone is null or field1 != ‘c‘) then m_phone \n" +
                "\telse kehu_phone\n" +
                "end";
        parsedClause = SimpleSyntaxParser.parse(condition);
        helper = new CaseWhenElDataCalcHelper(parsedClause.getAst().get(0));
        rawData = new HashMap<>();
        rawData.put("kehu_phone", "kehu_phone_v1");
        rawData.put("field1", "field1_v");
        rawData.put("m_phone", "m_phone_v");
        Assert.assertEquals("case..when..中解析字段信息不正确",
                    3, parsedClause.getIdMapping().size());
        Assert.assertEquals("case..when..解析结果错误",
                            rawData.get("m_phone"),
                            helper.calcCaseWhenData(rawData));

        condition = "case \n" +
                "\twhen (kehu_phone is null) then m_phone \n" +
                "\telse kehu_phone\n" +
                "end";
        parsedClause = SimpleSyntaxParser.parse(condition);
        helper = new CaseWhenElDataCalcHelper(parsedClause.getAst().get(0));
        rawData = new HashMap<>();
        rawData.put("kehu_phone", "kehu_phone_v1");
        rawData.put("field1", "field1_v");
        rawData.put("m_phone", "m_phone_v");
        Assert.assertEquals("case..when..中解析字段信息不正确",
                2, parsedClause.getIdMapping().size());
        Assert.assertEquals("case..when..解析结果错误",
                    rawData.get("kehu_phone"),
                    helper.calcCaseWhenData(rawData));

        rawData.remove("kehu_phone");
        Assert.assertEquals("case..when..解析结果错误",
                    rawData.get("m_phone"),
                    helper.calcCaseWhenData(rawData));

        condition = " case \n" +
                " \twhen is_sx_emp=‘Y‘ then ‘Y1‘ \n" +
                " \twhen is_sx_new_custom!=‘Y‘ then ‘Y2‘ \n" +
                " \twhen is_sx_fort_promot_custom=‘Y‘ then ‘Y3‘ \n" +
                " \twhen promotion_role_chn in (‘10‘,‘11‘) and first_tenthousand_dt is not null then ‘Y4‘ \n" +
                " \telse ‘N‘ \n" +
                " end";
        parsedClause = SimpleSyntaxParser.parse(condition);
        helper = new CaseWhenElDataCalcHelper(parsedClause.getAst().get(0));
        rawData = new HashMap<>();
        rawData.put("is_sx_emp", "N");
        rawData.put("is_sx_new_custom", "Y");
        rawData.put("is_sx_fortune_promot_custom", "N");
        rawData.put("promotion_role_chn", "10");
        rawData.put("first_tenthousand_dt", "10");
        Assert.assertEquals("case..when..中解析字段信息不正确",
                5, parsedClause.getIdMapping().size());
        Assert.assertEquals("case..when..in解析结果错误",
                "Y4",
                helper.calcCaseWhenData(rawData));

        rawData = new HashMap<>();
        rawData.put("is_sx_emp", "N");
        rawData.put("is_sx_new_custom", "Y");
        rawData.put("is_sx_fortune_promot_custom", "N");
        rawData.put("first_tenthousand_dt", "10");
        rawData.put("promotion_role_chn", "9");
        Assert.assertEquals("case..when..else解析结果错误",
                "N",
                helper.calcCaseWhenData(rawData));

        rawData = new HashMap<>();
        rawData.put("is_sx_new_custom", "Y");
        rawData.put("is_sx_fortune_promot_custom", "N");
        rawData.put("first_tenthousand_dt", "10");
        rawData.put("promotion_role_chn", "9");
        rawData.put("is_sx_emp", "Y");
        Assert.assertEquals("case..when..=解析结果错误",
                "Y1",
                helper.calcCaseWhenData(rawData));

        rawData = new HashMap<>();
        rawData.put("is_sx_emp", "N");
        rawData.put("is_sx_new_custom", "N");
        rawData.put("is_sx_fortune_promot_custom", "N");
        rawData.put("first_tenthousand_dt", "10");
        rawData.put("promotion_role_chn", "9");
        Assert.assertEquals("case..when..!=解析结果错误",
                "Y2",
                helper.calcCaseWhenData(rawData));

        rawData = new HashMap<>();
        rawData.put("is_sx_emp", "N");
        rawData.put("is_sx_new_custom", "Y");
        rawData.put("is_sx_fortune_promot_custom", "N");
        // rawData.put("first_tenthousand_dt", "10");
        rawData.put("promotion_role_chn", "9");
        Assert.assertEquals("case..when..in+and+null解析结果错误",
                "N",
                helper.calcCaseWhenData(rawData));


        condition = " case \n" +
                " \twhen is_sx_emp=‘Y‘ then ‘Y1‘ \n" +
                " \twhen or_emp != null or or_emp2 > 3 then ‘Y2_OR‘ \n" +
                " \twhen and_emp != null and and_emp2 > 3 or or_tmp3 <= 10 then ‘Y3_OR‘ \n" +
                " \twhen promotion_role_chn not in (‘10‘,‘11‘) and first_tenthousand_dt is not null then ‘Y4‘ \n" +
                " \twhen promotion_role_chn not in (‘10‘) then ‘Y5_NOTIN‘ \n" +
                " \telse ‘N_ELSE‘ \n" +
                " end";
        parsedClause = SimpleSyntaxParser.parse(condition);
        helper = new CaseWhenElDataCalcHelper(parsedClause.getAst().get(0));
        rawData = new HashMap<>();
        rawData.put("is_sx_emp", "N");
        rawData.put("or_emp", "Y");
        Assert.assertEquals("case..when..中解析字段信息不正确",
                8, parsedClause.getIdMapping().size());
        Assert.assertEquals("case..when..in解析结果错误",
                "Y2_OR",
                helper.calcCaseWhenData(rawData));

        rawData = new HashMap<>();
        rawData.put("is_sx_emp", "N");
        // rawData.put("or_emp", "Y");
        rawData.put("or_emp2", "2");
        Assert.assertEquals("case..when..or>2解析结果错误",
                "Y5_NOTIN",
                helper.calcCaseWhenData(rawData));

        rawData = new HashMap<>();
        rawData.put("is_sx_emp", "N");
        // rawData.put("or_emp", "Y");
        rawData.put("or_emp2", "2");
        rawData.put("promotion_role_chn", "10");
        Assert.assertEquals("case..when..notin解析结果错误",
                "N_ELSE",
                helper.calcCaseWhenData(rawData));

        condition = " case \n" +
                " \twhen (is_sx_emp=‘Y‘ or a_field=3) then ‘Y1‘ \n" +
                " \telse ‘N_ELSE‘ \n" +
                " end";
        parsedClause = SimpleSyntaxParser.parse(condition);
        helper = new CaseWhenElDataCalcHelper(parsedClause.getAst().get(0));
        rawData = new HashMap<>();
        rawData.put("is_sx_emp", "N");
        rawData.put("or_emp", "Y");
        Assert.assertEquals("case..when..中解析字段信息不正确",
                2, parsedClause.getIdMapping().size());
        Assert.assertEquals("case..when..()号解析结果错误",
                "N_ELSE",
                helper.calcCaseWhenData(rawData));

        rawData = new HashMap<>();
        rawData.put("is_sx_emp", "Y");
        rawData.put("or_emp", "Y");
        Assert.assertEquals("case..when..中解析字段信息不正确",
                2, parsedClause.getIdMapping().size());
        Assert.assertEquals("case..when..()号解析结果错误2",
                "Y1",
                helper.calcCaseWhenData(rawData));

    }
}