{-# 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.KinesisAnalytics.StartApplication
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- This documentation is for version 1 of the Amazon Kinesis Data Analytics
-- API, which only supports SQL applications. Version 2 of the API supports
-- SQL and Java applications. For more information about version 2, see
-- </kinesisanalytics/latest/apiv2/Welcome.html Amazon Kinesis Data Analytics API V2 Documentation>.
--
-- Starts the specified Amazon Kinesis Analytics application. After
-- creating an application, you must exclusively call this operation to
-- start your application.
--
-- After the application starts, it begins consuming the input data,
-- processes it, and writes the output to the configured destination.
--
-- The application status must be @READY@ for you to start an application.
-- You can get the application status in the console or using the
-- <https://docs.aws.amazon.com/kinesisanalytics/latest/dev/API_DescribeApplication.html DescribeApplication>
-- operation.
--
-- After you start the application, you can stop the application from
-- processing the input by calling the
-- <https://docs.aws.amazon.com/kinesisanalytics/latest/dev/API_StopApplication.html StopApplication>
-- operation.
--
-- This operation requires permissions to perform the
-- @kinesisanalytics:StartApplication@ action.
module Amazonka.KinesisAnalytics.StartApplication
  ( -- * Creating a Request
    StartApplication (..),
    newStartApplication,

    -- * Request Lenses
    startApplication_applicationName,
    startApplication_inputConfigurations,

    -- * Destructuring the Response
    StartApplicationResponse (..),
    newStartApplicationResponse,

    -- * Response Lenses
    startApplicationResponse_httpStatus,
  )
where

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

-- |
--
-- /See:/ 'newStartApplication' smart constructor.
data StartApplication = StartApplication'
  { -- | Name of the application.
    applicationName :: Prelude.Text,
    -- | Identifies the specific input, by ID, that the application starts
    -- consuming. Amazon Kinesis Analytics starts reading the streaming source
    -- associated with the input. You can also specify where in the streaming
    -- source you want Amazon Kinesis Analytics to start reading.
    inputConfigurations :: [InputConfiguration]
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'StartApplication' 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:
--
-- 'applicationName', 'startApplication_applicationName' - Name of the application.
--
-- 'inputConfigurations', 'startApplication_inputConfigurations' - Identifies the specific input, by ID, that the application starts
-- consuming. Amazon Kinesis Analytics starts reading the streaming source
-- associated with the input. You can also specify where in the streaming
-- source you want Amazon Kinesis Analytics to start reading.
newStartApplication ::
  -- | 'applicationName'
  Prelude.Text ->
  StartApplication
newStartApplication pApplicationName_ =
  StartApplication'
    { applicationName =
        pApplicationName_,
      inputConfigurations = Prelude.mempty
    }

-- | Name of the application.
startApplication_applicationName :: Lens.Lens' StartApplication Prelude.Text
startApplication_applicationName = Lens.lens (\StartApplication' {applicationName} -> applicationName) (\s@StartApplication' {} a -> s {applicationName = a} :: StartApplication)

-- | Identifies the specific input, by ID, that the application starts
-- consuming. Amazon Kinesis Analytics starts reading the streaming source
-- associated with the input. You can also specify where in the streaming
-- source you want Amazon Kinesis Analytics to start reading.
startApplication_inputConfigurations :: Lens.Lens' StartApplication [InputConfiguration]
startApplication_inputConfigurations = Lens.lens (\StartApplication' {inputConfigurations} -> inputConfigurations) (\s@StartApplication' {} a -> s {inputConfigurations = a} :: StartApplication) Prelude.. Lens.coerced

instance Core.AWSRequest StartApplication where
  type
    AWSResponse StartApplication =
      StartApplicationResponse
  request overrides =
    Request.postJSON (overrides defaultService)
  response =
    Response.receiveEmpty
      ( \s h x ->
          StartApplicationResponse'
            Prelude.<$> (Prelude.pure (Prelude.fromEnum s))
      )

instance Prelude.Hashable StartApplication where
  hashWithSalt _salt StartApplication' {..} =
    _salt
      `Prelude.hashWithSalt` applicationName
      `Prelude.hashWithSalt` inputConfigurations

instance Prelude.NFData StartApplication where
  rnf StartApplication' {..} =
    Prelude.rnf applicationName
      `Prelude.seq` Prelude.rnf inputConfigurations

instance Data.ToHeaders StartApplication where
  toHeaders =
    Prelude.const
      ( Prelude.mconcat
          [ "X-Amz-Target"
              Data.=# ( "KinesisAnalytics_20150814.StartApplication" ::
                          Prelude.ByteString
                      ),
            "Content-Type"
              Data.=# ( "application/x-amz-json-1.1" ::
                          Prelude.ByteString
                      )
          ]
      )

instance Data.ToJSON StartApplication where
  toJSON StartApplication' {..} =
    Data.object
      ( Prelude.catMaybes
          [ Prelude.Just
              ("ApplicationName" Data..= applicationName),
            Prelude.Just
              ("InputConfigurations" Data..= inputConfigurations)
          ]
      )

instance Data.ToPath StartApplication where
  toPath = Prelude.const "/"

instance Data.ToQuery StartApplication where
  toQuery = Prelude.const Prelude.mempty

-- |
--
-- /See:/ 'newStartApplicationResponse' smart constructor.
data StartApplicationResponse = StartApplicationResponse'
  { -- | The response's http status code.
    httpStatus :: Prelude.Int
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'StartApplicationResponse' 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:
--
-- 'httpStatus', 'startApplicationResponse_httpStatus' - The response's http status code.
newStartApplicationResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  StartApplicationResponse
newStartApplicationResponse pHttpStatus_ =
  StartApplicationResponse'
    { httpStatus =
        pHttpStatus_
    }

-- | The response's http status code.
startApplicationResponse_httpStatus :: Lens.Lens' StartApplicationResponse Prelude.Int
startApplicationResponse_httpStatus = Lens.lens (\StartApplicationResponse' {httpStatus} -> httpStatus) (\s@StartApplicationResponse' {} a -> s {httpStatus = a} :: StartApplicationResponse)

instance Prelude.NFData StartApplicationResponse where
  rnf StartApplicationResponse' {..} =
    Prelude.rnf httpStatus