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lancaster.cljc
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lancaster.cljc
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(ns deercreeklabs.lancaster
(:require
[clojure.string :as str]
[deercreeklabs.baracus :as ba]
[deercreeklabs.lancaster.impl :as impl]
[deercreeklabs.lancaster.schemas :as schemas]
[deercreeklabs.lancaster.utils :as u]
[deercreeklabs.log-utils :as lu :refer [debugs]]
#?(:cljs [goog.math :as gm])
[schema.core :as s :include-macros true]
[taoensso.timbre :as timbre :refer [debugf errorf infof]])
#?(:cljs
(:require-macros deercreeklabs.lancaster)))
(declare make-name*)
(def LancasterSchema (s/protocol u/ILancasterSchema))
(def LancasterSchemaOrNameKW (s/if keyword?
s/Keyword
LancasterSchema))
#?(:cljs
(def Long gm/Long))
(def int-schema (schemas/make-primitive-schema :int))
(def null-schema (schemas/make-primitive-schema :null))
(def boolean-schema (schemas/make-primitive-schema :boolean))
(def long-schema (schemas/make-primitive-schema :long))
(def float-schema (schemas/make-primitive-schema :float))
(def double-schema (schemas/make-primitive-schema :double))
(def bytes-schema (schemas/make-primitive-schema :bytes))
(def string-schema (schemas/make-primitive-schema :string))
(s/defn make-record-schema :- LancasterSchema
[name-kw :- s/Keyword
fields :- [schemas/RecordFieldDef]]
(schemas/make-schema :record name-kw fields))
(s/defn make-enum-schema :- LancasterSchema
[name-kw :- s/Keyword
symbols :- [s/Keyword]]
(schemas/make-schema :enum name-kw symbols))
(s/defn make-fixed-schema :- LancasterSchema
[name-kw :- s/Keyword
size :- s/Int]
(schemas/make-schema :fixed name-kw size))
(s/defn make-flex-map-schema :- LancasterSchema
[name-kw :- s/Keyword
keys-schema :- LancasterSchema
values-schema :- LancasterSchema]
(schemas/make-schema :flex-map name-kw [keys-schema values-schema]))
(s/defn make-array-schema :- LancasterSchema
[items-schema :- LancasterSchema]
(schemas/make-schema :array nil items-schema))
(s/defn make-map-schema :- LancasterSchema
[values-schema :- LancasterSchema]
(schemas/make-schema :map nil values-schema))
(s/defn make-union-schema :- LancasterSchema
[members :- [LancasterSchemaOrNameKW]]
(schemas/make-schema :union nil members))
(s/defn merge-record-schemas :- LancasterSchema
[name-kw :- s/Keyword
schemas :- [LancasterSchema]]
(schemas/merge-record-schemas name-kw schemas))
(s/defn maybe :- LancasterSchema
[schema :- LancasterSchemaOrNameKW]
(make-union-schema [null-schema schema]))
(s/defn serialize :- ba/ByteArray
[schema-obj :- LancasterSchema
data :- s/Any]
(when-not (satisfies? u/ILancasterSchema schema-obj)
(throw
(ex-info (str "First argument to serialize must be a schema "
"object. The object must satisfy the ILancasterSchema "
"protocol.")
{:schema-obj schema-obj
:schema-obj-type (#?(:clj class :cljs type) schema-obj)})))
(u/serialize schema-obj data))
(s/defn deserialize :- s/Any
[reader-schema-obj :- LancasterSchema
writer-pcf :- s/Str
ba :- ba/ByteArray]
(when-not (satisfies? u/ILancasterSchema reader-schema-obj)
(throw
(ex-info (str "First argument to deserialize must be a schema "
"object representing the reader's schema. The object "
"must satisfy the ILancasterSchema protocol.")
{:reader-schema-obj reader-schema-obj
:reader-schema-obj-type
(#?(:clj class :cljs type) reader-schema-obj)})))
(when-not (string? writer-pcf)
(throw
(ex-info (str "Second argument to deserialize must be a string "
"representing the parsing canonical form of the "
"writer's schema.")
{:writer-pcf writer-pcf
:writer-pcf-type (#?(:clj class :cljs type) writer-pcf)})))
(when-not (instance? ba/ByteArray ba)
(throw (ex-info "Third argument to deserialize must be a byte array."
{:ba ba
:ba-type (#?(:clj class :cljs type) ba)})))
(let [is (impl/make-input-stream ba)]
(u/deserialize reader-schema-obj writer-pcf is)))
(s/defn wrap :- schemas/WrappedData
[schema :- LancasterSchema
data :- s/Any]
(u/wrap schema data))
(s/defn get-edn-schema :- s/Any
[schema :- LancasterSchema]
(u/get-edn-schema schema))
(s/defn get-json-schema :- s/Str
[schema :- LancasterSchema]
(u/get-json-schema schema))
(s/defn get-plumatic-schema :- s/Any
[schema :- LancasterSchema]
(u/get-plumatic-schema schema))
(s/defn get-parsing-canonical-form :- s/Str
[schema :- LancasterSchema]
(u/get-parsing-canonical-form schema))
(s/defn get-fingerprint64 :- Long
[schema :- LancasterSchema]
(u/get-fingerprint64 schema))
(s/defn schema? :- s/Bool
[arg :- s/Any]
(satisfies? u/ILancasterSchema arg))
(s/defn make-default-data :- s/Any
[schema :- LancasterSchema]
(when-not (satisfies? u/ILancasterSchema schema)
(throw
(ex-info "Argument to make-default-data must be a schema object."
{:given-arg schema})))
(u/get-default-data (get-edn-schema schema)))
;;;;;;;;;; Named Schema Helper Macros ;;;;;;;;;;;;;;;;
(defmacro def-record-schema
[clj-name & fields]
(when-not (pos? (count fields))
(throw
(ex-info "Missing record fields in def-record-schema."
(u/sym-map clj-name fields))))
(let [ns-name (str (or
(:name (:ns &env)) ;; cljs
*ns*)) ;; clj
schema-name (u/make-schema-name clj-name)]
`(def ~clj-name
(schemas/make-schema :record ~ns-name ~schema-name (vector ~@fields)))))
(defmacro def-enum-schema
[clj-name & symbols]
(when-not (pos? (count symbols))
(throw
(ex-info "Missing symbols sequence in def-enum-schema."
(u/sym-map clj-name symbols))))
(let [ns-name (str (or
(:name (:ns &env)) ;; cljs
*ns*)) ;; clj
schema-name (u/make-schema-name clj-name)]
`(def ~clj-name
(schemas/make-schema :enum ~ns-name ~schema-name (vector ~@symbols)))))
(defmacro def-fixed-schema
[clj-name size]
(when-not (and (pos? size) (integer? size))
(throw
(ex-info "Second argument to def-fixed-schema must be a positive integer."
(u/sym-map clj-name size))))
(let [ns-name (str (or
(:name (:ns &env)) ;; cljs
*ns*)) ;; clj
schema-name (u/make-schema-name clj-name)]
`(def ~clj-name
(schemas/make-schema :fixed ~ns-name ~schema-name ~size))))
(defmacro def-flex-map-schema
[clj-name keys-schema values-schema]
(when-not keys-schema
(throw
(ex-info "Second argument to def-flex-map-schema must be a schema object."
(u/sym-map clj-name keys-schema))))
(when-not values-schema
(throw
(ex-info "Third argument to def-flex-map-schema must be a schema object."
(u/sym-map clj-name values-schema))))
(let [ns-name (str (or
(:name (:ns &env)) ;; cljs
*ns*)) ;; clj
schema-name (u/make-schema-name clj-name)]
`(def ~clj-name
(schemas/make-schema :flex-map ~ns-name ~schema-name
[~keys-schema ~values-schema]))))