(defn convert-line-to-map-entry [line]
        (apply hash-map (str/split line #":")))

(defn read-sensor-data
  "reads the file and returns a map of the following format:
  {\"key\" \"value\"}"
  [file-path]
          (with-open [rdr (io/reader file-path)]
            (doseq [line (line-seq rdr)]
              ;(println line)
              (convert-line-to-map-entry line))))