js, Java - rextester

js

//'main' method must be in a class 'Rextester'.
//openjdk version '11.0.5'

import java.util.*;
import java.lang.*;
import javax.script.Invocable;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;
class Rextester
{  
    public static void main(String args[]) throws Exception
    {
        
    String FUNCOES_BASE = montarFuncoesBase ();
    ScriptEngineManager factory = new ScriptEngineManager();
    ScriptEngine scriptEngine = factory.getEngineByName("JavaScript");

scriptEngine.put("valor", "123456");        
        
    scriptEngine.eval(FUNCOES_BASE);
    Invocable invocable = (Invocable) scriptEngine;
    System.out.print((Boolean)invocable.invokeFunction("isNotEmpty"));
    }
    
    private static String montarFuncoesBase () {
		StringBuilder funcoes = new StringBuilder();
		
		funcoes.append(montarFuncaoIsNotEmpty());
		//funcoes.append(montarFuncaoIsNumeric());
		//funcoes.append(montarFuncaoIsNumericoSemZeroEsquerda());
		//funcoes.append(montarFuncaoIsTipoPessoaValido());
		funcoes.append(montarFuncaoIsDataValida());
		//funcoes.append(montarFuncaoIsAgenciaValida());
		//funcoes.append(montarFuncaoIsContaValida());
		
		return funcoes.toString();
	}
	
	private static String montarFuncaoIsNumeric () {
		return "function isNumerico () { var regex = new RegExp(/^\\d+$/); return regex.test(valor); }";
	}
	
	private static String montarFuncaoIsNotEmpty () {
		return "function isNotEmpty () { return valor.trim().length > 0 }";
	}
	
	private static String montarFuncaoIsNumericoSemZeroEsquerda () {
		return "function isNumericoSemZeroEsquerda () { var regex = new RegExp(/^\\d+$/); var isNumerico = regex.test(valor); regex = new RegExp(/^0\\d*$/); var iniciaComZero = regex.test(valor); return (isNumerico && !iniciaComZero); }";
	}
	
	private static String montarFuncaoIsTipoPessoaValido () {
		return "function isTipoPessoaValido () { return valor == 3 || valor == 6; }";
	}
	
	private static String montarFuncaoIsAgenciaValida () {
		return "function isAgenciaValida () { var regex = new RegExp(/^\\d{1,5}$/); return regex.test(valor);  }";
	}
	
	private static String montarFuncaoIsContaValida () {
		return "function isContaValida() { var regex = new RegExp(/^\\d{1,13}$/); return regex.test(valor); }";
	}
	
private static String  montarFuncaoIsDataValida () {
		StringBuilder function = new StringBuilder()
		.append("function isDataValida () {")
		.append("	 var regexDate = /^(\\d{4})(\\d{2})(\\d{2})$/;")
		.append("	 var regexDateTime = /^(\\d{4})(\\d{2})(\\d{2})\\s*(\\d{2})(\\d{2})(\\d{2})$/;")
		.append("	 if (new RegExp(regexDate).test(valor)) {")
		.append("		 let parts = regexDate.exec(valor);")
		.append("		 let date = new Date(parts[1], (+parts[2])-1, parts[3]);")
		.append("		 if (date.getDate() == parts[3] && date.getMonth() == (parts[2]-1) && date.getFullYear() == parts[1]) {")
		.append("			 return true; ")
		.append("		}")
		.append("	}")
		.append("	 if (new RegExp(regexDateTime).test(valor)) {")
		.append("		 let parts = regexDateTime.exec(valor);")
		.append("		 let date = new Date(parts[1], (+parts[2])-1, parts[3], parts[4], parts[5], parts[6]);")
		.append("		 if (date.getDate() == parts[3] && date.getMonth() == (parts[2]-1) && date.getFullYear() == parts[1] && date.getHours() == parts[4] && date.getMinutes() == parts[5] && date.getSeconds() == parts[6]) {")
		.append("			 return true; ")
		.append("		}")
		.append("	 }")
		.append("	 return false;")
		.append("}");
		
		return function.toString();
//		return "function isDataValida () { var regex = new RegExp(/^\\d{8}(\\s\\d{6})?$/); return regex.test(valor);}";
	}
}


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