I have a java string that could be along the lines of

word1 word2 {param1}, word3 word4 {param2} {param3}

I want to write a function that takes the above item as String and also takes a map that has key value paris for each of param1, param2, param3 and replaces with the value from hashmap.

How do I do this? I want to be precise {param1} to be replaced by the value that will be returned by map for key param1. During replacement, I want the curly braces gone too.