I would like to know if it is possible to retrieve the name of a variable.
For example if I have a method:
def printSomething(def something){
//instead of having the literal String something, I want to be able to use the name of the variable that was passed
println('something is: ' + something)
}
If I call this method as follows:
def ordinary = 58
printSomething(ordinary)
I want to get:
ordinary is 58
On the other hand if I call this method like this:
def extraOrdinary = 67
printSomething(extraOrdinary)
I want to get:
extraOrdinary is 67
Edit
I need the variable name because I have this snippet of code which runs before each TestSuite in Katalon Studio, basically it gives you the flexibility of passing GlobalVariables using a katalon.features file. The idea is from: kazurayam/KatalonPropertiesDemo
@BeforeTestSuite
def sampleBeforeTestSuite(TestSuiteContext testSuiteContext) {
KatalonProperties props = new KatalonProperties()
// get appropriate value for GlobalVariable.hostname loaded from katalon.properties files
WebUI.comment(">>> GlobalVariable.G_Url default value: \'${GlobalVariable.G_Url}\'");
//gets the internal value of GlobalVariable.G_Url, if it's empty then use the one from katalon.features file
String preferedHostname = props.getProperty('GlobalVariable.G_Url')
if (preferedHostname != null) {
GlobalVariable.G_Url = preferedHostname;
WebUI.comment(">>> GlobalVariable.G_Url new value: \'${preferedHostname}\'");
} else {
WebUI.comment(">>> GlobalVariable.G_Url stays unchanged");
}
//doing the same for other variables is a lot of duplicate code
}
Now this only handles 1 variable value, if I do this for say 20 variables, that is a lot of duplicate code, so I wanted to create a helper function:
def setProperty(KatalonProperties props, GlobalVariable var){
WebUI.comment(">>> " + var.getName()" + default value: \'${var}\'");
//gets the internal value of var, if it's null then use the one from katalon.features file
GlobalVariable preferedVar = props.getProperty(var.getName())
if (preferedVar != null) {
var = preferedVar;
WebUI.comment(">>> " + var.getName() + " new value: \'${preferedVar}\'");
} else {
WebUI.comment(">>> " + var.getName() + " stays unchanged");
}
}
Here I just put var.getName() to explain what I am looking for, that is just a method I assume.
Since Groovy 4.0, it is possible to do that using NV
and SV
macro.
def printSomethingNV(def something) {
println("NV $something.name is : $something.val")
}
def printSomethingSV(def something) {
def (name, val) = something.split('=')
println("SV $name is : $val")
}
def ordinary = 58
printSomethingNV(NV(ordinary))
printSomethingSV(SV(ordinary))
def extraOrdinary = 67
printSomethingNV(NV(extraOrdinary))
printSomethingSV(SV(extraOrdinary))
// Output
// NV ordinary is : 58
// SV ordinary is : 58
// NV extraOrdinary is : 67
// SV extraOrdinary is : 67