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query.cljc
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query.cljc
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(ns com.yetanalytics.flint.spec.query
(:require [clojure.spec.alpha :as s]
[com.yetanalytics.flint.spec.axiom :as ax]
[com.yetanalytics.flint.spec.modifier :as ms]
[com.yetanalytics.flint.spec.prologue :as ps]
[com.yetanalytics.flint.spec.select :as ss]
[com.yetanalytics.flint.spec.triple :as ts]
[com.yetanalytics.flint.spec.where :as ws]
[com.yetanalytics.flint.spec.values :as vs])
#?(:clj (:require
[com.yetanalytics.flint.spec :refer [sparql-keys]])
:cljs (:require-macros
[com.yetanalytics.flint.spec :refer [sparql-keys]])))
(def key-order-map
{:base 0
:prefixes 1
:select 2
:select-distinct 2
:select-reduced 2
:construct 2
:describe 2
:ask 2
:from 3
:from-named 4
:where 5
:group-by 6
:order-by 7
:having 8
:limit 9
:offset 10
:values 11})
(defn- key-comp
[k1 k2]
(let [n1 (get key-order-map k1 100)
n2 (get key-order-map k2 100)]
(- n1 n2)))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Dataset Clause specs
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(s/def ::from
(s/and (s/or :from/single ax/iri-or-prefixed-spec
:from/coll (s/and (s/coll-of ax/iri-or-prefixed-spec
:count 1
:kind vector?)
(s/conformer first)))
(s/conformer second)))
(s/def ::from-named
(s/coll-of ax/iri-or-prefixed-spec
:min-count 1
:kind vector?))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Query
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Cannot use `s/merge` since conformance does not work properly with it
(def select-query-spec
(sparql-keys :req-un [(or ::ss/select
::ss/select-distinct
::ss/select-reduced)
::ws/where]
:opt-un [::ps/base ::ps/prefixes
::from ::from-named
::ms/group-by
::ms/order-by
::ms/having
::ms/limit
::ms/offset
::vs/values]
:key-comp-fn key-comp))
(def triples-spec
(s/coll-of (s/or :triple/vec ts/triple-vec-nopath-spec
:triple/nform ts/normal-form-nopath-spec)
:min-count 0
:kind vector?))
(s/def ::construct triples-spec)
(def construct-query-spec
(sparql-keys :req-un [::construct ::ws/where]
:opt-un [::ps/base ::ps/prefixes
::from ::from-named
::ms/group-by
::ms/order-by
::ms/having
::ms/limit
::ms/offset]
:key-comp-fn key-comp))
(s/def ::describe
(s/or :describe/vars-or-iris (s/coll-of ax/iri-or-var-spec
:min-count 1
:kind vector?)
:ax/wildcard ax/wildcard-spec))
(def describe-query-spec
(sparql-keys :req-un [::describe]
:opt-un [::ps/base ::ps/prefixes
::from ::from-named
::ws/where
::ms/group-by
::ms/order-by
::ms/having
::ms/limit
::ms/offset]
:key-comp-fn key-comp))
(s/def ::ask empty?)
(def ask-query-spec
(sparql-keys :req-un [::ask ::ws/where]
:opt-un [::ps/base ::ps/prefixes
::from ::from-named
::ms/group-by
::ms/order-by
::ms/having
::ms/limit
::ms/offset]
:key-comp-fn key-comp))
(def query-spec
(s/or :query/select select-query-spec
:query/construct construct-query-spec
:query/describe describe-query-spec
:query/ask ask-query-spec))