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@treo
Created May 17, 2015 19:47
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Simple example how the gson streaming api might be used from clojure.
(import com.google.gson.stream.JsonReader)
(import com.google.gson.Gson)
(def data "[{\"id\":2,\"name\":\"Thing1\"},{\"id\":3,\"name\":\"Thing2\"},{\"id\":4,\"name\":\"Thing3\"}]")
(def gson (Gson.))
(defrecord example [id name])
(defn to-record [java-map]
(map->example (into {} (map
(juxt
#(keyword (key %))
#(val %))
java-map))))
(defn readJsonStream [in]
(let [reader (JsonReader. in)]
(do
(.beginArray reader)
(loop [data []]
(if (.hasNext reader)
(recur (conj data (to-record (.fromJson gson reader example))))
(do (doto reader
(.endArray)
(.close))
data))))))
(readJsonStream (java.io.StringReader. data))
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