RotBolt

// Initially I have an interface Expr (just like in Java) and have two classes  (Constant and BinaryPlus) implement that interface 


interface Exp {
    fun eval(): Double
}

class Constant(val value:Double): Exp {
    override fun eval(): Double = value
}

RotBolt

#!modulesToBuild=extensions/webjars-locator/deployment,extensions/logging-json/deployment,extensions/smallrye-opentracing/deployment,extensions/smallrye-reactive-messaging/deployment,extensions/vertx/deployment,extensions/spring-data-jpa/deployment,extensions/spring-di/deployment,extensions/spring-web/deployment,extensions/spring-boot-properties/deployment,extensions/spring-security/deployment,extensions/reactive-streams-operators/smallrye-reactive-streams-operators/deployment,extensions/smallrye-reactive-messaging-amqp/deployment,extensions/smallrye-reactive-messaging-amqp/runtime,extensions/smallrye-reactive-messaging-kafka/deployment,extensions/smallrye-openapi/deployment,extensions/smallrye-jwt/deployment,extensions/smallrye-fault-tolerance/deployment,extensions/smallrye-context-propagation/deployment,extensions/rest-client/deployment,extensions/scheduler/deployment,extensions/oidc/deployment,extensions/quartz/deployment,extensions/reactive-pg-client/deployment,extensions/keycloak-authorization/deployment

RotBolt

            PncBuild pncBuild = getBuild(generationData.getSourceBuild());
            ArtifactWrapper bomArtifact = pncBuild.findArtifactByFileName(generationData.getSourceArtifact());
            String bomConstraintVersion = bomArtifact.toGAV().getVersion();

RotBolt

#!modulesToBuild=extensions/webjars-locator/deployment,extensions/logging-json/deployment,extensions/smallrye-opentracing/deployment,extensions/smallrye-reactive-messaging/deployment,extensions/vertx/deployment,extensions/spring-data-jpa/deployment,extensions/spring-di/deployment,extensions/spring-web/deployment,extensions/spring-boot-properties/deployment,extensions/spring-security/deployment,extensions/reactive-streams-operators/smallrye-reactive-streams-operators/deployment,extensions/smallrye-reactive-messaging-amqp/deployment,extensions/smallrye-reactive-messaging-amqp/runtime,extensions/smallrye-reactive-messaging-kafka/deployment,extensions/smallrye-openapi/deployment,extensions/smallrye-jwt/deployment,extensions/smallrye-fault-tolerance/deployment,extensions/smallrye-context-propagation/deployment,extensions/rest-client/deployment,extensions/scheduler/deployment,extensions/oidc/deployment,extensions/quartz/deployment,extensions/reactive-pg-client/deployment,extensions/keycloak-authorization/deployment

RotBolt

 private fun extractNumber(numString: String) = numString.toDoubleOrNull()

 private fun isValue(expression: String): Boolean {
    val validChars = "1234567890.-"

    for (i in expression.indices) {
       val char = expression[i]
       if (char !in validChars) return false
       if (expression.count { it == '.' } > 1) return false

RotBolt

 // Checking for function in expression
 val position = expression.indexOf('(')
 if (position > 0 && expression.last() == ')'){
   val funString = expression.substring(0,position)
            
   val value= evaluate(expression.substring(position+1,expression.lastIndex))
            
   val res = evaluateFunction(funString, value)
   return res
 }

RotBolt

 for (operator in Operators.values()) {
   var position = expression.reversed().lastIndexOf(operator.sign)

   while (position > 0) {
     if (isOperator(operator, expression, position)) {
         ...
         ...
     }
     // check again for same operator till the previous position
     if (position > 0) {

RotBolt

private fun isOperator(operator: Operators, expression: String, position: Int): Boolean {
        if (operator == Operators.PLUS) {
            // Check the previous operator
            if (expression[position - 1] == 'E') {
                if (position >= 2) {
                    return false
                }
            } else {
                return true
            }

RotBolt

  private fun String.lastIndexOf(char: Char): Int {
        var bOpen = 0     // count for open bracket
        var bClose = 0    // count for close bracket
        for (i in this.indices) {
            val currChar = this[i]

            when {
                currChar == char && bOpen == bClose -> 
                                    return this.length - i - 1
                currChar == '(' -> bOpen++

RotBolt

// evaluate function
  private fun evaluate(expression: String): Double? {
      for (operator in Operators.values()) {
            /*
                reversed() : find the operator from right side (last)
                for cases : 20/10/2, 12-4-4
            */
          var position = expression.reversed().lastIndexOf(operator.sign)
          if(position>0){
               val partialExpressions = expression.split(position)