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core-async 2023-10-19
Mor Gazith 2023-10-19T07:34:09.704749Z
is there an idiomatic way of calling sync java methods in an async way (maybe w/o even using core.async)? here’s my code, that a coworker commented might be too low level:
(defn call-slow-java-method> [params]
(let [out (promise-chan)
req (-> (CallSlowNetworkRequest.)
(.withParams params))]
(put! out (-> (.InvokeRequest @java-client req)
(.getBody)
(String.)
(read-json)))
out))
(defn call-site [params]
(go
(let [res (<! (call-slow-java-method> params))]
(println "@@@ res:" res)
res)))
vlaaad 2023-10-19T07:39:07.758989Z
if CPU bound, just call as is, if IO-bound (seems like your case), use a/thread https://clojure.github.io/core.async/#clojure.core.async/thread
Mor Gazith 2023-10-19T07:47:53.722979Z
so you mean something like this?
(defn call-slow-java-method [params]
(let [req (-> (CallSlowNetworkRequest.)
(.withParams params))]
(-> (.InvokeRequest @java-client req)
(.getBody)
(String.)
(read-json))))
(defn call-site [params]
(go
(let [res (<! (thread (call-slow-java-method params)))]
(println "res:" res)
res)))✅ 1
vlaaad 2023-10-19T08:06:04.733719Z
yes