Hoky
3 years ago
2 changed files with 91 additions and 71 deletions
@ -0,0 +1,88 @@
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package com.fr.design.formula; |
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import com.fr.design.i18n.Toolkit; |
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import com.fr.log.FineLoggerFactory; |
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import com.fr.parser.FRLexer; |
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import com.fr.parser.FRParser; |
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import com.fr.script.checker.FunctionCheckerDispatcher; |
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import com.fr.script.checker.exception.ConditionCheckWrongException; |
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import com.fr.script.checker.exception.FunctionCheckWrongException; |
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import com.fr.script.rules.FunctionParameterType; |
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import com.fr.script.rules.FunctionRule; |
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import com.fr.stable.StringUtils; |
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import com.fr.stable.script.Expression; |
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import com.fr.stable.script.Node; |
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import java.io.StringReader; |
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import java.util.List; |
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/** |
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* @author Hoky |
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* @date 2021/9/28 |
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*/ |
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public class FormulaChecker { |
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private static final String VALID_FORMULA = Toolkit.i18nText("Fine-Design_Basic_FormulaD_Valid_Formula"); |
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private static final String INVALID_FORMULA = Toolkit.i18nText("Fine-Design_Basic_FormulaD_Invalid_Formula"); |
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public static final String COLON = ":"; |
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public static String check(String formulaText) { |
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StringReader in = new StringReader(formulaText); |
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FRLexer lexer = new FRLexer(in); |
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FRParser parser = new FRParser(lexer); |
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try { |
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Expression expression = parser.parse(); |
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Node node = expression.getConditionalExpression(); |
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return FunctionCheckerDispatcher.getInstance() |
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.getFunctionChecker(node) |
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.checkFunction(node) ? VALID_FORMULA : INVALID_FORMULA; |
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} catch (ConditionCheckWrongException cce) { |
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String functionName = cce.getFunctionName(); |
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return functionName + Toolkit.i18nText("Fine-Design_Basic_Formula_Check_Condition_Tips") + COLON; |
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} catch (FunctionCheckWrongException ce) { |
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List<FunctionRule> rules = ce.getRules(); |
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String functionName = ce.getFunctionName(); |
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StringBuilder errorMsg = new StringBuilder(functionName + com.fr.design.i18n.Toolkit.i18nText("Fine-Design_Basic_Formula_Check_Error_Tips") + COLON); |
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for (int i = 0; i < rules.size(); i++) { |
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errorMsg.append("("); |
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if (rules.get(i).getParameterList().isEmpty()) { |
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errorMsg.append(com.fr.design.i18n.Toolkit.i18nText("Fine-Design_Basic_Formula_No_Param")); |
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} |
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for (FunctionParameterType functionParameterType : rules.get(i).getParameterList()) { |
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errorMsg.append(getTypeString(functionParameterType)).append(","); |
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} |
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if (",".equals(errorMsg.charAt(errorMsg.length() - 1) + "")) { |
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errorMsg.deleteCharAt(errorMsg.length() - 1); |
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} |
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errorMsg.append(")"); |
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if (i != rules.size() - 1) { |
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errorMsg.append(com.fr.design.i18n.Toolkit.i18nText("Fine-Design_Basic_Formula_Check_Or")); |
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} |
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} |
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return errorMsg.toString(); |
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} catch (Exception e) { |
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FineLoggerFactory.getLogger().error(e.getMessage(), e); |
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return INVALID_FORMULA; |
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// alex:继续往下面走,expression为null时告知不合法公式
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} |
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} |
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private static String getTypeString(FunctionParameterType type) { |
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switch (type) { |
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case NUMBER: |
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return com.fr.design.i18n.Toolkit.i18nText("Fine-Design_Basic_Formula_Check_ParamType_Number"); |
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case STRING: |
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return com.fr.design.i18n.Toolkit.i18nText("Fine-Design_Basic_Formula_Check_ParamType_String"); |
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case ANY: |
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return com.fr.design.i18n.Toolkit.i18nText("Fine-Design_Basic_Formula_Check_ParamType_Any"); |
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case DATE: |
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return com.fr.design.i18n.Toolkit.i18nText("Fine-Design_Basic_Formula_Check_ParamType_Date"); |
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case BOOLEAN: |
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return com.fr.design.i18n.Toolkit.i18nText("Fine-Design_Basic_Formula_Check_ParamType_Boolean"); |
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case ARRAY: |
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return com.fr.design.i18n.Toolkit.i18nText("Fine-Design_Basic_Formula_Check_ParamType_Array"); |
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} |
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return StringUtils.EMPTY; |
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} |
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} |
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