If we have an object in groovy, for example Customer[name, email, phone] and a String in the form
String infoLine = "Stanislav,[email protected],004612345678"
What is the easiest way to parse that string and populate the fields of that object?
(The example string we can split, that is why the question is from array of String)
Assuming you have a constructor
Customer(String name, String email, String phone)
You can do:
new Customer(*infoLine.split(','))
If you don't want to write a constructor, you can get Groovy to create one for you:
import groovy.transform.*
@TupleConstructor
class Customer {
String name
String email
String phone
}
String infoLine = "Stanislav,[email protected],004612345678"
new Customer(*infoLine.split(','))
Or even better, @Immutable as this makes the properties final
@Immutable
class Customer {
String name
String email
String phone
}
Another option (assuming your fields are defined in the order they appear in the string, and there are no other fields), would be to generate a map of [name: 'aaa', emai... etc, and tell groovy to convert the map to a Customer like:
class Customer {
String name
String email
String phone
}
String infoLine = "Stanislav,[email protected],004612345678"
def customer = [
Customer.declaredFields.findAll { !it.synthetic }*.name,
infoLine.split(',')
].transpose().collectEntries() as Customer
But this feels kinda brittle, and it's probably quicker to add the annotation or constructor.
