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

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

-- |
-- Module      : Amazonka.IoTAnalytics.Types.FilterActivity
-- Copyright   : (c) 2013-2021 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay <brendan.g.hay+amazonka@gmail.com>
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
module Amazonka.IoTAnalytics.Types.FilterActivity where

import qualified Amazonka.Core as Core
import qualified Amazonka.Lens as Lens
import qualified Amazonka.Prelude as Prelude

-- | An activity that filters a message based on its attributes.
--
-- /See:/ 'newFilterActivity' smart constructor.
data FilterActivity = FilterActivity'
  { -- | The next activity in the pipeline.
    FilterActivity -> Maybe Text
next :: Prelude.Maybe Prelude.Text,
    -- | The name of the filter activity.
    FilterActivity -> Text
name :: Prelude.Text,
    -- | An expression that looks like a SQL WHERE clause that must return a
    -- Boolean value. Messages that satisfy the condition are passed to the
    -- next activity.
    FilterActivity -> Text
filter' :: Prelude.Text
  }
  deriving (FilterActivity -> FilterActivity -> Bool
(FilterActivity -> FilterActivity -> Bool)
-> (FilterActivity -> FilterActivity -> Bool) -> Eq FilterActivity
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: FilterActivity -> FilterActivity -> Bool
$c/= :: FilterActivity -> FilterActivity -> Bool
== :: FilterActivity -> FilterActivity -> Bool
$c== :: FilterActivity -> FilterActivity -> Bool
Prelude.Eq, ReadPrec [FilterActivity]
ReadPrec FilterActivity
Int -> ReadS FilterActivity
ReadS [FilterActivity]
(Int -> ReadS FilterActivity)
-> ReadS [FilterActivity]
-> ReadPrec FilterActivity
-> ReadPrec [FilterActivity]
-> Read FilterActivity
forall a.
(Int -> ReadS a)
-> ReadS [a] -> ReadPrec a -> ReadPrec [a] -> Read a
readListPrec :: ReadPrec [FilterActivity]
$creadListPrec :: ReadPrec [FilterActivity]
readPrec :: ReadPrec FilterActivity
$creadPrec :: ReadPrec FilterActivity
readList :: ReadS [FilterActivity]
$creadList :: ReadS [FilterActivity]
readsPrec :: Int -> ReadS FilterActivity
$creadsPrec :: Int -> ReadS FilterActivity
Prelude.Read, Int -> FilterActivity -> ShowS
[FilterActivity] -> ShowS
FilterActivity -> String
(Int -> FilterActivity -> ShowS)
-> (FilterActivity -> String)
-> ([FilterActivity] -> ShowS)
-> Show FilterActivity
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [FilterActivity] -> ShowS
$cshowList :: [FilterActivity] -> ShowS
show :: FilterActivity -> String
$cshow :: FilterActivity -> String
showsPrec :: Int -> FilterActivity -> ShowS
$cshowsPrec :: Int -> FilterActivity -> ShowS
Prelude.Show, (forall x. FilterActivity -> Rep FilterActivity x)
-> (forall x. Rep FilterActivity x -> FilterActivity)
-> Generic FilterActivity
forall x. Rep FilterActivity x -> FilterActivity
forall x. FilterActivity -> Rep FilterActivity x
forall a.
(forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
$cto :: forall x. Rep FilterActivity x -> FilterActivity
$cfrom :: forall x. FilterActivity -> Rep FilterActivity x
Prelude.Generic)

-- |
-- Create a value of 'FilterActivity' 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:
--
-- 'next', 'filterActivity_next' - The next activity in the pipeline.
--
-- 'name', 'filterActivity_name' - The name of the filter activity.
--
-- 'filter'', 'filterActivity_filter' - An expression that looks like a SQL WHERE clause that must return a
-- Boolean value. Messages that satisfy the condition are passed to the
-- next activity.
newFilterActivity ::
  -- | 'name'
  Prelude.Text ->
  -- | 'filter''
  Prelude.Text ->
  FilterActivity
newFilterActivity :: Text -> Text -> FilterActivity
newFilterActivity Text
pName_ Text
pFilter_ =
  FilterActivity' :: Maybe Text -> Text -> Text -> FilterActivity
FilterActivity'
    { $sel:next:FilterActivity' :: Maybe Text
next = Maybe Text
forall a. Maybe a
Prelude.Nothing,
      $sel:name:FilterActivity' :: Text
name = Text
pName_,
      $sel:filter':FilterActivity' :: Text
filter' = Text
pFilter_
    }

-- | The next activity in the pipeline.
filterActivity_next :: Lens.Lens' FilterActivity (Prelude.Maybe Prelude.Text)
filterActivity_next :: (Maybe Text -> f (Maybe Text))
-> FilterActivity -> f FilterActivity
filterActivity_next = (FilterActivity -> Maybe Text)
-> (FilterActivity -> Maybe Text -> FilterActivity)
-> Lens FilterActivity FilterActivity (Maybe Text) (Maybe Text)
forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\FilterActivity' {Maybe Text
next :: Maybe Text
$sel:next:FilterActivity' :: FilterActivity -> Maybe Text
next} -> Maybe Text
next) (\s :: FilterActivity
s@FilterActivity' {} Maybe Text
a -> FilterActivity
s {$sel:next:FilterActivity' :: Maybe Text
next = Maybe Text
a} :: FilterActivity)

-- | The name of the filter activity.
filterActivity_name :: Lens.Lens' FilterActivity Prelude.Text
filterActivity_name :: (Text -> f Text) -> FilterActivity -> f FilterActivity
filterActivity_name = (FilterActivity -> Text)
-> (FilterActivity -> Text -> FilterActivity)
-> Lens FilterActivity FilterActivity Text Text
forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\FilterActivity' {Text
name :: Text
$sel:name:FilterActivity' :: FilterActivity -> Text
name} -> Text
name) (\s :: FilterActivity
s@FilterActivity' {} Text
a -> FilterActivity
s {$sel:name:FilterActivity' :: Text
name = Text
a} :: FilterActivity)

-- | An expression that looks like a SQL WHERE clause that must return a
-- Boolean value. Messages that satisfy the condition are passed to the
-- next activity.
filterActivity_filter :: Lens.Lens' FilterActivity Prelude.Text
filterActivity_filter :: (Text -> f Text) -> FilterActivity -> f FilterActivity
filterActivity_filter = (FilterActivity -> Text)
-> (FilterActivity -> Text -> FilterActivity)
-> Lens FilterActivity FilterActivity Text Text
forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\FilterActivity' {Text
filter' :: Text
$sel:filter':FilterActivity' :: FilterActivity -> Text
filter'} -> Text
filter') (\s :: FilterActivity
s@FilterActivity' {} Text
a -> FilterActivity
s {$sel:filter':FilterActivity' :: Text
filter' = Text
a} :: FilterActivity)

instance Core.FromJSON FilterActivity where
  parseJSON :: Value -> Parser FilterActivity
parseJSON =
    String
-> (Object -> Parser FilterActivity)
-> Value
-> Parser FilterActivity
forall a. String -> (Object -> Parser a) -> Value -> Parser a
Core.withObject
      String
"FilterActivity"
      ( \Object
x ->
          Maybe Text -> Text -> Text -> FilterActivity
FilterActivity'
            (Maybe Text -> Text -> Text -> FilterActivity)
-> Parser (Maybe Text) -> Parser (Text -> Text -> FilterActivity)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
Prelude.<$> (Object
x Object -> Text -> Parser (Maybe Text)
forall a. FromJSON a => Object -> Text -> Parser (Maybe a)
Core..:? Text
"next")
            Parser (Text -> Text -> FilterActivity)
-> Parser Text -> Parser (Text -> FilterActivity)
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
Prelude.<*> (Object
x Object -> Text -> Parser Text
forall a. FromJSON a => Object -> Text -> Parser a
Core..: Text
"name")
            Parser (Text -> FilterActivity)
-> Parser Text -> Parser FilterActivity
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
Prelude.<*> (Object
x Object -> Text -> Parser Text
forall a. FromJSON a => Object -> Text -> Parser a
Core..: Text
"filter")
      )

instance Prelude.Hashable FilterActivity

instance Prelude.NFData FilterActivity

instance Core.ToJSON FilterActivity where
  toJSON :: FilterActivity -> Value
toJSON FilterActivity' {Maybe Text
Text
filter' :: Text
name :: Text
next :: Maybe Text
$sel:filter':FilterActivity' :: FilterActivity -> Text
$sel:name:FilterActivity' :: FilterActivity -> Text
$sel:next:FilterActivity' :: FilterActivity -> Maybe Text
..} =
    [Pair] -> Value
Core.object
      ( [Maybe Pair] -> [Pair]
forall a. [Maybe a] -> [a]
Prelude.catMaybes
          [ (Text
"next" Text -> Text -> Pair
forall kv v. (KeyValue kv, ToJSON v) => Text -> v -> kv
Core..=) (Text -> Pair) -> Maybe Text -> Maybe Pair
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
Prelude.<$> Maybe Text
next,
            Pair -> Maybe Pair
forall a. a -> Maybe a
Prelude.Just (Text
"name" Text -> Text -> Pair
forall kv v. (KeyValue kv, ToJSON v) => Text -> v -> kv
Core..= Text
name),
            Pair -> Maybe Pair
forall a. a -> Maybe a
Prelude.Just (Text
"filter" Text -> Text -> Pair
forall kv v. (KeyValue kv, ToJSON v) => Text -> v -> kv
Core..= Text
filter')
          ]
      )