https://github.com/marianoguerra/pipe-metrics.clj

a lib to add coda hale's metrics to marianoguerra's pipe library
https://github.com/marianoguerra/pipe-metrics.clj

Last synced: about 1 month ago
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a lib to add coda hale's metrics to marianoguerra's pipe library

• Host: GitHub
• URL: https://github.com/marianoguerra/pipe-metrics.clj
• Owner: marianoguerra
• Created: 2013-04-03T14:43:08.000Z (over 11 years ago)
• Default Branch: master
• Last Pushed: 2013-04-04T08:14:20.000Z (over 11 years ago)
• Last Synced: 2024-06-22T21:42:11.811Z (5 months ago)
• Language: Clojure
• Size: 117 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# pipe-metrics

a lib to add coda hale's metrics to marianoguerra's pipe library

## Usage

check clojars project's site for instructions:

https://clojars.org/org.marianoguerra/pipe-metrics

example usage:

	user=> (use 'marianoguerra.pipe)

	user=> (use 'marianoguerra.pipe-metrics)

	user=> (defn plus-one [{value :value}] {:value (inc value)})

	user=> (pipe {:value 42} (counter "my-counter") plus-one)

	{:value 43}

	user=> (get-metric "my-counter")

	#

	user=> (require '[metrics.counters :as counters])

	user=> (counters/value (get-metric "my-counter"))

	1

	user=> (pipe {:value 42} (counter "my-counter") plus-one)

	{:value 43}

	user=> (pipe {:value 42} (counter "my-counter") plus-one)

	{:value 43}

	user=> (counters/value (get-metric "my-counter"))

	3

	; you can specify a custom update function that can change the

	; metric according to something else (like current value on the pipe)

	user=> (defn increase-counter-by-two [counter value inc! dec! clear!] (inc! counter 2))

	#'user/increase-counter-by-two

	user=> (defn decrease-counter [counter value inc! dec! clear!] (dec! counter))

	#'user/decrease-counter

	user=> (defn clear-counter [counter value inc! dec! clear!] (clear! counter))

	#'user/clear-counter

	user=> (pipe {:value 42} (counter "my-counter" :update-fn decrease-counter) plus-one)

	{:value 43}

	user=> (counters/value (get-metric "my-counter"))

	2

	user=> (pipe {:value 42} (counter "my-counter" :update-fn clear-counter) plus-one)

	{:value 43}

	user=> (counters/value (get-metric "my-counter"))

	0

## License

Copyright © 2013 marianoguerra

Distributed under the Eclipse Public License, the same as Clojure.