loop array of items in declarative pipeline using groovy script - jenkins

Question

I am new to Jenkins pipeline can you please provide below out by using groovy declarative pipeline and -D should be appended for every key.
Input request should be string '''name= ram id = 123 role = IT''' and output needed as -Dname=ram -Did=123 -Drole=IT
pipeline{
agent any
parameters {
text defaultValue: '''name = ram id = 123 role = IT]''', description: 'employee details', name : 'details'
}
environment {
emp_details = "${env.details}"
}
stage('build') {
steps{
script{
echo "dislay details, ${emp_details }"
for(e in emp_details){
print e + ":" + emp_details[e])
}
}
}
}
}
Final output: -Dname=ram -Did=123 -Drole=IT
error: No Such property: [ for class: java.lang.String
if passing input is not right, how can we pass it?

Answer 1

You are getting a String not an array, so first, you need to create an iterable list and modify each key by iterating.
pipeline {
agent any
parameters {
text defaultValue: '''[name = ram, id = 123, role = IT]''', description: 'employee details', name : 'details'
}
environment {
emp_details = "${env.details}"
}
stages {
stage('Hello') {
steps{
script{
echo "dislay details, ${params.details}"
def appendedString = ""
// SInce it's a string we need get rid of [ and ] characters and then the spaces.
def lst = params.details.replaceAll("[^0-9a-zA-Z=,]+","").split(',')
println lst
for(e in lst){
print(e)
appendedString += "-D" + e + " ";
}
println "Final String: " + appendedString;
}
}
}
}
}
Update
Update the split logic to support the new string. '''name = ram id = 123 role = IT'''
def lst = params.details.replaceAll("\\s=\\s", "=").split("\\s")