mirror of https://github.com/apache/jclouds.git
Change clojure template builder to take a map. Issue 272.
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@ -56,6 +56,8 @@ webserver:
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See http://code.google.com/p/jclouds for details."
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(:use org.jclouds.core
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(clojure.contrib logging core))
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(:require
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[clojure.contrib.condition :as condition])
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(:import java.io.File
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java.util.Properties
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[org.jclouds.domain Location]
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@ -189,7 +191,9 @@ See http://code.google.com/p/jclouds for details."
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(with-compute-service [compute]
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(run-nodes \"webserver\" 2
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(build-template
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service :centos :smallest :image-name-matches \".*w/ None.*\")))"
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service
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{:os-family :centos :smallest true
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:image-name-matches \".*w/ None.*\"})))"
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([tag count]
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(run-nodes tag count (default-template *compute*) *compute*))
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([tag count compute-or-template]
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@ -373,53 +377,45 @@ See http://code.google.com/p/jclouds for details."
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(def enum-map {:os-family (os-families)})
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(defn add-option-with-value-if [builder kword]
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(loop [enums (sequence enum-map)]
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(if (not (empty? enums))
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(let [enum (first enums)
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value (filter #(= (name kword) (str %)) (second enum))]
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(if (not (empty? value))
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(((first enum) option-1arg-map) builder (first value))
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(recur (rest enums)))))))
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(defn translate-enum-value [kword value]
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(or (-> (filter #(= (name value) (str %)) (kword enum-map)) first)
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value))
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(defn add-option-if [builder kword]
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(let [f (option-0arg-map kword)]
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(if f (f builder))))
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(defn add-keyword-option [builder option]
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(if (not (or (add-option-with-value-if builder option)
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(add-option-if builder option)))
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(println "Unknown option " option)))
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(defn add-nullary-option [builder option value]
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(if-let [f (option-0arg-map option)]
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(if value
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(f builder)
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builder)))
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(defn add-value-option [builder option value]
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(let [f (option-1arg-map option)]
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(if f
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(f builder value)
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(println "Unknown option" option))))
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(if-let [f (option-1arg-map option)]
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(f builder (translate-enum-value option value))))
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;; TODO look at clojure-datalog
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(defn build-template
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"Creates a template that can be used to run nodes.
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There are many options to use for the default template"
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[#^ComputeService compute option & options]
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The :os-family key expects a keyword version of OsFamily,
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eg. :os-family :ubuntu.
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The :smallest, :fastest, :biggest, :any, and :destroy-on-error keys expect a
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boolean value.
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Options correspond to TemplateBuilder methods."
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[#^ComputeService compute
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{:keys [os-family location-id architecture image-id hardware-id
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os-name-matches os-version-matches os-description-matches
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os-64-bit image-version-matches image-name-matches
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image-description-matches min-cores min-ram
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run-script install-private-key authorize-public-key
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inbound-ports smallest fastest biggest any destroy-on-error]
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:as options}]
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(let [builder (.. compute (templateBuilder))]
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(loop [option option
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remaining options]
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(if (empty? remaining)
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(add-keyword-option builder option)
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(let [next-is-keyword (keyword? (first remaining))
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arg (if (not next-is-keyword)
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(first remaining))
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next (if next-is-keyword
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(first remaining)
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(fnext remaining))
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remaining (if (keyword? (first remaining))
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(rest remaining)
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(drop 2 remaining))]
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(if arg
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(add-value-option builder option arg)
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(add-keyword-option builder option))
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(if next
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(recur next remaining)))))
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(doseq [[option value] options]
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(or
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(add-value-option builder option value)
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(add-nullary-option builder option value)
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(condition/raise
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:type :invalid-template-builder-option
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:message (format "Invalid template builder option : %s" option))))
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(.build builder)))
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@ -19,7 +19,10 @@
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(ns org.jclouds.compute-test
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(:use [org.jclouds.compute] :reload-all)
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(:use clojure.test))
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(:use clojure.test)
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(:import
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org.jclouds.compute.domain.OsFamily
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clojure.contrib.condition.Condition))
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(defmacro with-private-vars [[ns fns] & tests]
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"Refers private fns from ns and runs tests in context. From users mailing
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@ -48,4 +51,21 @@ list, Alan Dipert and MeikelBrandmeyer."
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(deftest as-compute-service-test
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(is (compute-service? (compute-service "stub" "user" "password")))
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(is (compute-service? (as-compute-service *compute*)))
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(is (compute-service? (as-compute-service (compute-context *compute*)))))
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(is (compute-service? (as-compute-service (compute-context *compute*)))))
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(deftest build-template-test
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(let [service (compute-service "stub" "user" "password")]
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(testing "nullary"
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(is (>= (-> (build-template service {:fastest true})
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bean :hardware bean :processors first bean :cores)
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8.0)))
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(testing "one arg"
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(is (> (-> (build-template service {:min-ram 512})
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bean :hardware bean :ram)
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512)))
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(testing "enumerated"
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(is (= OsFamily/CENTOS
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(-> (build-template service {:os-family :centos})
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bean :image bean :operatingSystem bean :family))))
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(testing "invalid"
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(is (thrown? Condition (build-template service {:xx :yy}))))))
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