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gjcourt/lazy_connection.clj

Last active December 15, 2015 03:09
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lazy_connection.clj
(def ^:dynamic *zk-connection* “localhost:2181”)
(def kafka-producer (atom nil))
(defn get-connection []
(if-not @kafka-producer
(swap! kafka-producer (fn [a] (producer {“zk.connect” *zk-connection*}))))
kafka-producer)
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