Custom exception handler

Handler.php

<?php
namespace AwardForce\Library\Exceptions;

use AwardForce\Library\Http\FormInputOutdatedException;
use AwardForce\Library\Http\Messaging;
use AwardForce\Library\Traits\Respondable;
use AwardForce\Modules\Accounts\AccountNotFoundException;
use Exception;
use Illuminate\Foundation\Exceptions\Handler as ExceptionHandler;
use Illuminate\Http\Response;
use Illuminate\Session\TokenMismatchException;
use Illuminate\Support\Facades\Lang;
use Symfony\Component\HttpKernel\Exception\HttpException;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;

class Handler extends ExceptionHandler
{
    use Messaging;
    use Respondable;

    protected $layout;

    /**
     * A list of the exception types that should not be reported.
     *
     * @var array
     */
    protected $dontReport = [
        AccountNotFoundException::class,
        FormInputOutdatedException::class,
        HttpException::class,
        LanguageKeyErrorException::class,
        NotFoundHttpException::class,
        TokenMismatchException::class
    ];

    /**
     * Render an exception into an HTTP response.
     *
     * @param \Illuminate\Http\Request $request
     * @param \Exception               $exception
     *
     * @return \Illuminate\Http\Response
     */
    public function render($request, Exception $exception)
    {
        switch (true) {
            case $exception instanceof FormInputOutdatedException:
                return $this->withMessage(trans('miscellaneous.outdated'), 'warning', null, 422);
            case $exception instanceof LanguageKeyErrorException:
                $lang = Lang::get($exception->getLanguageKey(), $exception->getParameters());
                return $this->withMessage($lang, 'error');
            case $exception instanceof HttpException:
                return $this->handleHttpException($request, $exception);
        }

        return parent::render($request, $exception);
    }

    /**
     * Manages the various HTTP exceptions specific to the application.
     *
     * @param \Illuminate\Http\Request $request
     * @param HttpException $exception
     * @return Response
     */
    private function handleHttpException($request, HttpException $exception)
    {
        $this->log->notice("Caught HttpException for [{$exception->getStatusCode()}] {$request->fullUrl()}", [
            'fullUrl' => $request->fullUrl(),
            'status'  => $exception->getStatusCode(),
            'message' => $exception->getMessage(),
            'headers' => $exception->getHeaders(),
        ]);

        $this->setupLayout();

        switch ($exception->getStatusCode()) {
            case 404:
            case 403:
            case 401:
                $this->respond('errors.'.$exception->getStatusCode());
                return new Response($this->layout, $exception->getStatusCode());
        }

        return parent::render($request, $exception);
    }
}