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bowerick

Easing Simple Message-oriented Middleware Tasks with Clojure (and Java)

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Detailed Test Results

Detailed test results are available as well: http://ruedigergad.github.io/bowerick/test-results/html/

Blog Posts

On my website, I wrote some blog posts about bowerick:

https://ruedigergad.com/category/libs/bowerick/

In these blog posts, I make announcements about bowerick and discuss selected aspects of bowerick in more detail.

Documentation

Examples

Minimal Working Example

; Can also be run in: lein repl
(require '[bowerick.jms :as jms])
(def url "tcp://127.0.0.1:61616")
(def destination "/topic/my.test.topic")
(def brkr (jms/start-broker url))
(def consumer (jms/create-json-consumer url destination (fn [data] (println "Received:" data))))
(def producer (jms/create-json-producer url destination))
(producer "foo")
; nilReceived: foo
(producer '(1 7 0 1))
; nilReceived: (1 7 0 1)
(jms/close producer)
(jms/close consumer)
(jms/stop brkr)
; (quit)

Multiple Transports

; Can also be run in: lein repl
(require '[bowerick.jms :as jms])
(def urls ["tcp://127.0.0.1:61616" "stomp://127.0.0.1:61617" "ws://127.0.0.1:61618" "mqtt://127.0.0.1:61619"])
(def destination "/topic/my.test.topic")
(def brkr (jms/start-broker urls))
(def consumers (doall (map-indexed (fn [idx url] (jms/create-json-consumer url destination (fn [data] (Thread/sleep (* 100 idx)) (println "Received" url data)))) urls)))
(def producer (jms/create-json-producer (first urls) destination))
(producer "foo")
; Received tcp://127.0.0.1:61616 foo
; Received stomp://127.0.0.1:61617 foo
; Received ws://127.0.0.1:61618 foo
; Received mqtt://127.0.0.1:61619 foo
(jms/close producer)
(doseq [consumer consumers] (jms/close consumer))
(jms/stop brkr)
; (quit)

Pooled Operation

; Can also be run in: lein repl
(require '[bowerick.jms :as jms])
(def url "tcp://127.0.0.1:61616")
(def destination "/topic/my.test.topic")
(def brkr (jms/start-broker url))
(def pool-size 3)
(def consumer (jms/create-json-consumer url destination (fn [data] (println "Received:" data)) pool-size))
(def producer (jms/create-json-producer url destination pool-size))
(producer "foo")
(producer [1 7 0 1])
(producer 42.0)
; nilReceived: foo
; Received: [1 7 0 1]
; Received: 42.0
(jms/close producer)
(jms/close consumer)
(jms/stop brkr)
; (quit)

API Docs

API docs are available: http://ruedigergad.github.io/bowerick/doc/

Cheat Sheet

Transport Connections

Serialization, Compression, and Pooling

Placeholders Used in the Cheat Sheet Examples

(def server-url "tcp://127.0.0.1:42424")
(def destination-description "/topic/my.topic.name")
(def pool-size 10)
(defn callback-fn [data] (println data))
  • Default Serialization

(create-producer server-url destination-description pool-size)

(create-consumer server-url destination-description callback-fn pool-size)

  • JSON Serialization (Using Cheshire)

(create-json-producer server-url destination-description pool-size)

(create-json-consumer server-url destination-description callback-fn pool-size)

  • Carbonite (Kryo) Serialization

(create-carbonite-producer server-url destination-description pool-size)

(create-carbonite-consumer server-url destination-description callback-fn pool-size)

  • Carbonite (Kryo) Serialization with LZF Compression

(create-carbonite-lzf-producer server-url destination-description pool-size)

(create-carbonite-lzf-consumer server-url destination-description callback-fn pool-size)

  • Nippy Serialization

(create-nippy-producer server-url destination-description pool-size)

(create-nippy-consumer server-url destination-description callback-fn pool-size)

  • Nippy Serialization with Compression (LZ4, Snappy, LZMA2)

(create-nippy-producer server-url destination-description pool-size {:compressor taoensso.nippy/lz4-compressor})

(create-nippy-producer server-url destination-description pool-size {:compressor taoensso.nippy/snappy-compressor})

(create-nippy-producer server-url destination-description pool-size {:compressor taoensso.nippy/lzma2-compressor})

  • Nippy Serialization with LZF Compression

(create-nippy-lzf-producer server-url destination-description pool-size)

(create-nippy-lzf-consumer server-url destination-description callback-fn pool-size)

License

Copyright © 2016 - 2018 Ruediger Gad

Copyright © 2014 - 2015 Frankfurt University of Applied Sciences

Distributed under the Eclipse Public License either version 1.0 or (at your option) any later version.

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