{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE DuplicateRecordFields #-}
{-# LANGUAGE NamedFieldPuns #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE StrictData #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE NoImplicitPrelude #-}
{-# OPTIONS_GHC -fno-warn-unused-binds #-}
{-# OPTIONS_GHC -fno-warn-unused-imports #-}
{-# OPTIONS_GHC -fno-warn-unused-matches #-}

-- Derived from AWS service descriptions, licensed under Apache 2.0.

-- |
-- Module      : Amazonka.Glue.GetClassifiers
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Lists all classifier objects in the Data Catalog.
--
-- This operation returns paginated results.
module Amazonka.Glue.GetClassifiers
  ( -- * Creating a Request
    GetClassifiers (..),
    newGetClassifiers,

    -- * Request Lenses
    getClassifiers_maxResults,
    getClassifiers_nextToken,

    -- * Destructuring the Response
    GetClassifiersResponse (..),
    newGetClassifiersResponse,

    -- * Response Lenses
    getClassifiersResponse_classifiers,
    getClassifiersResponse_nextToken,
    getClassifiersResponse_httpStatus,
  )
where

import qualified Amazonka.Core as Core
import qualified Amazonka.Core.Lens.Internal as Lens
import qualified Amazonka.Data as Data
import Amazonka.Glue.Types
import qualified Amazonka.Prelude as Prelude
import qualified Amazonka.Request as Request
import qualified Amazonka.Response as Response

-- | /See:/ 'newGetClassifiers' smart constructor.
data GetClassifiers = GetClassifiers'
  { -- | The size of the list to return (optional).
    GetClassifiers -> Maybe Natural
maxResults :: Prelude.Maybe Prelude.Natural,
    -- | An optional continuation token.
    GetClassifiers -> Maybe Text
nextToken :: Prelude.Maybe Prelude.Text
  }
  deriving (GetClassifiers -> GetClassifiers -> Bool
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: GetClassifiers -> GetClassifiers -> Bool
$c/= :: GetClassifiers -> GetClassifiers -> Bool
== :: GetClassifiers -> GetClassifiers -> Bool
$c== :: GetClassifiers -> GetClassifiers -> Bool
Prelude.Eq, ReadPrec [GetClassifiers]
ReadPrec GetClassifiers
Int -> ReadS GetClassifiers
ReadS [GetClassifiers]
forall a.
(Int -> ReadS a)
-> ReadS [a] -> ReadPrec a -> ReadPrec [a] -> Read a
readListPrec :: ReadPrec [GetClassifiers]
$creadListPrec :: ReadPrec [GetClassifiers]
readPrec :: ReadPrec GetClassifiers
$creadPrec :: ReadPrec GetClassifiers
readList :: ReadS [GetClassifiers]
$creadList :: ReadS [GetClassifiers]
readsPrec :: Int -> ReadS GetClassifiers
$creadsPrec :: Int -> ReadS GetClassifiers
Prelude.Read, Int -> GetClassifiers -> ShowS
[GetClassifiers] -> ShowS
GetClassifiers -> String
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [GetClassifiers] -> ShowS
$cshowList :: [GetClassifiers] -> ShowS
show :: GetClassifiers -> String
$cshow :: GetClassifiers -> String
showsPrec :: Int -> GetClassifiers -> ShowS
$cshowsPrec :: Int -> GetClassifiers -> ShowS
Prelude.Show, forall x. Rep GetClassifiers x -> GetClassifiers
forall x. GetClassifiers -> Rep GetClassifiers x
forall a.
(forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
$cto :: forall x. Rep GetClassifiers x -> GetClassifiers
$cfrom :: forall x. GetClassifiers -> Rep GetClassifiers x
Prelude.Generic)

-- |
-- Create a value of 'GetClassifiers' with all optional fields omitted.
--
-- Use <https://hackage.haskell.org/package/generic-lens generic-lens> or <https://hackage.haskell.org/package/optics optics> to modify other optional fields.
--
-- The following record fields are available, with the corresponding lenses provided
-- for backwards compatibility:
--
-- 'maxResults', 'getClassifiers_maxResults' - The size of the list to return (optional).
--
-- 'nextToken', 'getClassifiers_nextToken' - An optional continuation token.
newGetClassifiers ::
  GetClassifiers
newGetClassifiers :: GetClassifiers
newGetClassifiers =
  GetClassifiers'
    { $sel:maxResults:GetClassifiers' :: Maybe Natural
maxResults = forall a. Maybe a
Prelude.Nothing,
      $sel:nextToken:GetClassifiers' :: Maybe Text
nextToken = forall a. Maybe a
Prelude.Nothing
    }

-- | The size of the list to return (optional).
getClassifiers_maxResults :: Lens.Lens' GetClassifiers (Prelude.Maybe Prelude.Natural)
getClassifiers_maxResults :: Lens' GetClassifiers (Maybe Natural)
getClassifiers_maxResults = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\GetClassifiers' {Maybe Natural
maxResults :: Maybe Natural
$sel:maxResults:GetClassifiers' :: GetClassifiers -> Maybe Natural
maxResults} -> Maybe Natural
maxResults) (\s :: GetClassifiers
s@GetClassifiers' {} Maybe Natural
a -> GetClassifiers
s {$sel:maxResults:GetClassifiers' :: Maybe Natural
maxResults = Maybe Natural
a} :: GetClassifiers)

-- | An optional continuation token.
getClassifiers_nextToken :: Lens.Lens' GetClassifiers (Prelude.Maybe Prelude.Text)
getClassifiers_nextToken :: Lens' GetClassifiers (Maybe Text)
getClassifiers_nextToken = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\GetClassifiers' {Maybe Text
nextToken :: Maybe Text
$sel:nextToken:GetClassifiers' :: GetClassifiers -> Maybe Text
nextToken} -> Maybe Text
nextToken) (\s :: GetClassifiers
s@GetClassifiers' {} Maybe Text
a -> GetClassifiers
s {$sel:nextToken:GetClassifiers' :: Maybe Text
nextToken = Maybe Text
a} :: GetClassifiers)

instance Core.AWSPager GetClassifiers where
  page :: GetClassifiers
-> AWSResponse GetClassifiers -> Maybe GetClassifiers
page GetClassifiers
rq AWSResponse GetClassifiers
rs
    | forall a. AWSTruncated a => a -> Bool
Core.stop
        ( AWSResponse GetClassifiers
rs
            forall s a. s -> Getting (First a) s a -> Maybe a
Lens.^? Lens' GetClassifiersResponse (Maybe Text)
getClassifiersResponse_nextToken
            forall b c a. (b -> c) -> (a -> b) -> a -> c
Prelude.. forall a b. Prism (Maybe a) (Maybe b) a b
Lens._Just
        ) =
        forall a. Maybe a
Prelude.Nothing
    | forall a. AWSTruncated a => a -> Bool
Core.stop
        ( AWSResponse GetClassifiers
rs
            forall s a. s -> Getting (First a) s a -> Maybe a
Lens.^? Lens' GetClassifiersResponse (Maybe [Classifier])
getClassifiersResponse_classifiers
            forall b c a. (b -> c) -> (a -> b) -> a -> c
Prelude.. forall a b. Prism (Maybe a) (Maybe b) a b
Lens._Just
        ) =
        forall a. Maybe a
Prelude.Nothing
    | Bool
Prelude.otherwise =
        forall a. a -> Maybe a
Prelude.Just
          forall a b. (a -> b) -> a -> b
Prelude.$ GetClassifiers
rq
          forall a b. a -> (a -> b) -> b
Prelude.& Lens' GetClassifiers (Maybe Text)
getClassifiers_nextToken
          forall s t a b. ASetter s t a b -> b -> s -> t
Lens..~ AWSResponse GetClassifiers
rs
          forall s a. s -> Getting (First a) s a -> Maybe a
Lens.^? Lens' GetClassifiersResponse (Maybe Text)
getClassifiersResponse_nextToken
          forall b c a. (b -> c) -> (a -> b) -> a -> c
Prelude.. forall a b. Prism (Maybe a) (Maybe b) a b
Lens._Just

instance Core.AWSRequest GetClassifiers where
  type
    AWSResponse GetClassifiers =
      GetClassifiersResponse
  request :: (Service -> Service) -> GetClassifiers -> Request GetClassifiers
request Service -> Service
overrides =
    forall a. (ToRequest a, ToJSON a) => Service -> a -> Request a
Request.postJSON (Service -> Service
overrides Service
defaultService)
  response :: forall (m :: * -> *).
MonadResource m =>
(ByteStringLazy -> IO ByteStringLazy)
-> Service
-> Proxy GetClassifiers
-> ClientResponse ClientBody
-> m (Either Error (ClientResponse (AWSResponse GetClassifiers)))
response =
    forall (m :: * -> *) a.
MonadResource m =>
(Int -> ResponseHeaders -> Object -> Either String (AWSResponse a))
-> (ByteStringLazy -> IO ByteStringLazy)
-> Service
-> Proxy a
-> ClientResponse ClientBody
-> m (Either Error (ClientResponse (AWSResponse a)))
Response.receiveJSON
      ( \Int
s ResponseHeaders
h Object
x ->
          Maybe [Classifier] -> Maybe Text -> Int -> GetClassifiersResponse
GetClassifiersResponse'
            forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
Prelude.<$> (Object
x forall a. FromJSON a => Object -> Key -> Either String (Maybe a)
Data..?> Key
"Classifiers" forall (f :: * -> *) a. Functor f => f (Maybe a) -> a -> f a
Core..!@ forall a. Monoid a => a
Prelude.mempty)
            forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
Prelude.<*> (Object
x forall a. FromJSON a => Object -> Key -> Either String (Maybe a)
Data..?> Key
"NextToken")
            forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
Prelude.<*> (forall (f :: * -> *) a. Applicative f => a -> f a
Prelude.pure (forall a. Enum a => a -> Int
Prelude.fromEnum Int
s))
      )

instance Prelude.Hashable GetClassifiers where
  hashWithSalt :: Int -> GetClassifiers -> Int
hashWithSalt Int
_salt GetClassifiers' {Maybe Natural
Maybe Text
nextToken :: Maybe Text
maxResults :: Maybe Natural
$sel:nextToken:GetClassifiers' :: GetClassifiers -> Maybe Text
$sel:maxResults:GetClassifiers' :: GetClassifiers -> Maybe Natural
..} =
    Int
_salt
      forall a. Hashable a => Int -> a -> Int
`Prelude.hashWithSalt` Maybe Natural
maxResults
      forall a. Hashable a => Int -> a -> Int
`Prelude.hashWithSalt` Maybe Text
nextToken

instance Prelude.NFData GetClassifiers where
  rnf :: GetClassifiers -> ()
rnf GetClassifiers' {Maybe Natural
Maybe Text
nextToken :: Maybe Text
maxResults :: Maybe Natural
$sel:nextToken:GetClassifiers' :: GetClassifiers -> Maybe Text
$sel:maxResults:GetClassifiers' :: GetClassifiers -> Maybe Natural
..} =
    forall a. NFData a => a -> ()
Prelude.rnf Maybe Natural
maxResults
      seq :: forall a b. a -> b -> b
`Prelude.seq` forall a. NFData a => a -> ()
Prelude.rnf Maybe Text
nextToken

instance Data.ToHeaders GetClassifiers where
  toHeaders :: GetClassifiers -> ResponseHeaders
toHeaders =
    forall a b. a -> b -> a
Prelude.const
      ( forall a. Monoid a => [a] -> a
Prelude.mconcat
          [ HeaderName
"X-Amz-Target"
              forall a. ToHeader a => HeaderName -> a -> ResponseHeaders
Data.=# (ByteString
"AWSGlue.GetClassifiers" :: Prelude.ByteString),
            HeaderName
"Content-Type"
              forall a. ToHeader a => HeaderName -> a -> ResponseHeaders
Data.=# ( ByteString
"application/x-amz-json-1.1" ::
                          Prelude.ByteString
                      )
          ]
      )

instance Data.ToJSON GetClassifiers where
  toJSON :: GetClassifiers -> Value
toJSON GetClassifiers' {Maybe Natural
Maybe Text
nextToken :: Maybe Text
maxResults :: Maybe Natural
$sel:nextToken:GetClassifiers' :: GetClassifiers -> Maybe Text
$sel:maxResults:GetClassifiers' :: GetClassifiers -> Maybe Natural
..} =
    [Pair] -> Value
Data.object
      ( forall a. [Maybe a] -> [a]
Prelude.catMaybes
          [ (Key
"MaxResults" forall kv v. (KeyValue kv, ToJSON v) => Key -> v -> kv
Data..=) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
Prelude.<$> Maybe Natural
maxResults,
            (Key
"NextToken" forall kv v. (KeyValue kv, ToJSON v) => Key -> v -> kv
Data..=) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
Prelude.<$> Maybe Text
nextToken
          ]
      )

instance Data.ToPath GetClassifiers where
  toPath :: GetClassifiers -> ByteString
toPath = forall a b. a -> b -> a
Prelude.const ByteString
"/"

instance Data.ToQuery GetClassifiers where
  toQuery :: GetClassifiers -> QueryString
toQuery = forall a b. a -> b -> a
Prelude.const forall a. Monoid a => a
Prelude.mempty

-- | /See:/ 'newGetClassifiersResponse' smart constructor.
data GetClassifiersResponse = GetClassifiersResponse'
  { -- | The requested list of classifier objects.
    GetClassifiersResponse -> Maybe [Classifier]
classifiers :: Prelude.Maybe [Classifier],
    -- | A continuation token.
    GetClassifiersResponse -> Maybe Text
nextToken :: Prelude.Maybe Prelude.Text,
    -- | The response's http status code.
    GetClassifiersResponse -> Int
httpStatus :: Prelude.Int
  }
  deriving (GetClassifiersResponse -> GetClassifiersResponse -> Bool
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: GetClassifiersResponse -> GetClassifiersResponse -> Bool
$c/= :: GetClassifiersResponse -> GetClassifiersResponse -> Bool
== :: GetClassifiersResponse -> GetClassifiersResponse -> Bool
$c== :: GetClassifiersResponse -> GetClassifiersResponse -> Bool
Prelude.Eq, ReadPrec [GetClassifiersResponse]
ReadPrec GetClassifiersResponse
Int -> ReadS GetClassifiersResponse
ReadS [GetClassifiersResponse]
forall a.
(Int -> ReadS a)
-> ReadS [a] -> ReadPrec a -> ReadPrec [a] -> Read a
readListPrec :: ReadPrec [GetClassifiersResponse]
$creadListPrec :: ReadPrec [GetClassifiersResponse]
readPrec :: ReadPrec GetClassifiersResponse
$creadPrec :: ReadPrec GetClassifiersResponse
readList :: ReadS [GetClassifiersResponse]
$creadList :: ReadS [GetClassifiersResponse]
readsPrec :: Int -> ReadS GetClassifiersResponse
$creadsPrec :: Int -> ReadS GetClassifiersResponse
Prelude.Read, Int -> GetClassifiersResponse -> ShowS
[GetClassifiersResponse] -> ShowS
GetClassifiersResponse -> String
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [GetClassifiersResponse] -> ShowS
$cshowList :: [GetClassifiersResponse] -> ShowS
show :: GetClassifiersResponse -> String
$cshow :: GetClassifiersResponse -> String
showsPrec :: Int -> GetClassifiersResponse -> ShowS
$cshowsPrec :: Int -> GetClassifiersResponse -> ShowS
Prelude.Show, forall x. Rep GetClassifiersResponse x -> GetClassifiersResponse
forall x. GetClassifiersResponse -> Rep GetClassifiersResponse x
forall a.
(forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
$cto :: forall x. Rep GetClassifiersResponse x -> GetClassifiersResponse
$cfrom :: forall x. GetClassifiersResponse -> Rep GetClassifiersResponse x
Prelude.Generic)

-- |
-- Create a value of 'GetClassifiersResponse' with all optional fields omitted.
--
-- Use <https://hackage.haskell.org/package/generic-lens generic-lens> or <https://hackage.haskell.org/package/optics optics> to modify other optional fields.
--
-- The following record fields are available, with the corresponding lenses provided
-- for backwards compatibility:
--
-- 'classifiers', 'getClassifiersResponse_classifiers' - The requested list of classifier objects.
--
-- 'nextToken', 'getClassifiersResponse_nextToken' - A continuation token.
--
-- 'httpStatus', 'getClassifiersResponse_httpStatus' - The response's http status code.
newGetClassifiersResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  GetClassifiersResponse
newGetClassifiersResponse :: Int -> GetClassifiersResponse
newGetClassifiersResponse Int
pHttpStatus_ =
  GetClassifiersResponse'
    { $sel:classifiers:GetClassifiersResponse' :: Maybe [Classifier]
classifiers =
        forall a. Maybe a
Prelude.Nothing,
      $sel:nextToken:GetClassifiersResponse' :: Maybe Text
nextToken = forall a. Maybe a
Prelude.Nothing,
      $sel:httpStatus:GetClassifiersResponse' :: Int
httpStatus = Int
pHttpStatus_
    }

-- | The requested list of classifier objects.
getClassifiersResponse_classifiers :: Lens.Lens' GetClassifiersResponse (Prelude.Maybe [Classifier])
getClassifiersResponse_classifiers :: Lens' GetClassifiersResponse (Maybe [Classifier])
getClassifiersResponse_classifiers = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\GetClassifiersResponse' {Maybe [Classifier]
classifiers :: Maybe [Classifier]
$sel:classifiers:GetClassifiersResponse' :: GetClassifiersResponse -> Maybe [Classifier]
classifiers} -> Maybe [Classifier]
classifiers) (\s :: GetClassifiersResponse
s@GetClassifiersResponse' {} Maybe [Classifier]
a -> GetClassifiersResponse
s {$sel:classifiers:GetClassifiersResponse' :: Maybe [Classifier]
classifiers = Maybe [Classifier]
a} :: GetClassifiersResponse) forall b c a. (b -> c) -> (a -> b) -> a -> c
Prelude.. forall (f :: * -> *) (g :: * -> *) s t a b.
(Functor f, Functor g) =>
AnIso s t a b -> Iso (f s) (g t) (f a) (g b)
Lens.mapping forall s t a b. (Coercible s a, Coercible t b) => Iso s t a b
Lens.coerced

-- | A continuation token.
getClassifiersResponse_nextToken :: Lens.Lens' GetClassifiersResponse (Prelude.Maybe Prelude.Text)
getClassifiersResponse_nextToken :: Lens' GetClassifiersResponse (Maybe Text)
getClassifiersResponse_nextToken = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\GetClassifiersResponse' {Maybe Text
nextToken :: Maybe Text
$sel:nextToken:GetClassifiersResponse' :: GetClassifiersResponse -> Maybe Text
nextToken} -> Maybe Text
nextToken) (\s :: GetClassifiersResponse
s@GetClassifiersResponse' {} Maybe Text
a -> GetClassifiersResponse
s {$sel:nextToken:GetClassifiersResponse' :: Maybe Text
nextToken = Maybe Text
a} :: GetClassifiersResponse)

-- | The response's http status code.
getClassifiersResponse_httpStatus :: Lens.Lens' GetClassifiersResponse Prelude.Int
getClassifiersResponse_httpStatus :: Lens' GetClassifiersResponse Int
getClassifiersResponse_httpStatus = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\GetClassifiersResponse' {Int
httpStatus :: Int
$sel:httpStatus:GetClassifiersResponse' :: GetClassifiersResponse -> Int
httpStatus} -> Int
httpStatus) (\s :: GetClassifiersResponse
s@GetClassifiersResponse' {} Int
a -> GetClassifiersResponse
s {$sel:httpStatus:GetClassifiersResponse' :: Int
httpStatus = Int
a} :: GetClassifiersResponse)

instance Prelude.NFData GetClassifiersResponse where
  rnf :: GetClassifiersResponse -> ()
rnf GetClassifiersResponse' {Int
Maybe [Classifier]
Maybe Text
httpStatus :: Int
nextToken :: Maybe Text
classifiers :: Maybe [Classifier]
$sel:httpStatus:GetClassifiersResponse' :: GetClassifiersResponse -> Int
$sel:nextToken:GetClassifiersResponse' :: GetClassifiersResponse -> Maybe Text
$sel:classifiers:GetClassifiersResponse' :: GetClassifiersResponse -> Maybe [Classifier]
..} =
    forall a. NFData a => a -> ()
Prelude.rnf Maybe [Classifier]
classifiers
      seq :: forall a b. a -> b -> b
`Prelude.seq` forall a. NFData a => a -> ()
Prelude.rnf Maybe Text
nextToken
      seq :: forall a b. a -> b -> b
`Prelude.seq` forall a. NFData a => a -> ()
Prelude.rnf Int
httpStatus