Quick attempt to take a nice Clojure map and convert it to a format that will play nice with Java Properties. Inspired by similar clojure.walk functions.

gistfile1.clj

(require '[clojure.walk :refer [postwalk]]
          [clojure.string :as s])
          
(defn keyword-to-property
  "Replace :foo-bar with \"foo.bar\", etc."
  [k]
  (s/replace (name k) #"\-" "."))

(defn propertyize-map
  "Recursively transforms all map keys from keywords to Java property strings and values to strings (if necessary)."
  [m]
  (let [f (fn [[k v]]
            (let [k (keyword-to-property k)]
              (cond
                (string? v) [k v]
                (keyword? v) [k (name v)]
                :else [k (str v)])))]
    (postwalk (fn [x] (if (map? x) (into {} (map f x)) x)) m)))

; (propertyize-map {:doof-cha :hi :bruh "sup" :what-the-heck 99})
; => {"what.the.heck" "99", "bruh" "sup", "doof.cha" "hi"}