i am expecting some string value and i need to find, if i have corresponding enum value defined.
my enum value is
enum class Status {
Created, Updated
}
and what i want to achieve in this function is to check if any of these enum values matching, ignore the case
private fun getStatus(
value: String
): Status {
....
}
if nothing matched then i want to throw an error.
thank you so much for your help in advance!!
Note: in this answer, I missed the requirement that the function should be case-insensitive. Those built-in functions only find exact matches.
Original answer:
There is a built-in valueOf() function that you can use which does exactly that:
val status = Status.valueOf("Created")
If you're in a generic context and cannot use the enum class name directly, you can also use enumValueOf():
val status = enumValueOf<Status>("Created")
Here is the doc about this: https://kotlinlang.org/docs/enum-classes.html#working-with-enum-constants
The built-in functions for enums like Enum.valueOf or enumValueOf<Enum> are case-sensitive, but you can easily write your own case-insensitive versions:
inline fun <reified T : Enum<T>> enumValueOfIgnoreCase(key: String): T =
enumValues<T>().find { it.name.equals(key, ignoreCase = true) }
?: throw IllegalArgumentException("no value for key $key")
Then you can write for instance the following to obtain the Status element Created:
val status = enumValueOfIgnoreCase<Status>("created")