Extend session store in Laravel

EncryptedStore.php

<?php

namespace App\Session;

class EncryptedStore extends \Illuminate\Session\EncryptedStore
{
    public function get($key, $default = null)
    {
        $originalValue = parent::get($key, $default);

        if (is_null($originalValue)) {
            // do something
        }

        return $originalValue;
    }
}

SessionManager.php

<?php

namespace App\Session;

class SessionManager extends \Illuminate\Session\SessionManager
{
    protected function buildSession($handler)
    {
        if ($this->app['config']['session.encrypt']) {
            return $this->buildEncryptedSession($handler);
        }

        return new Store($this->app['config']['session.cookie'], $handler);
    }

    protected function buildEncryptedSession($handler)
    {
        return new EncryptedStore(
            $this->app['config']['session.cookie'], $handler, $this->app['encrypter']
        );
    }
}

SessionServiceProvider.php

<?php

namespace App\Session;

class SessionServiceProvider extends \Illuminate\Session\SessionServiceProvider
{
    protected function registerSessionManager()
    {
        $this->app->singleton('session', function ($app) {
            return new SessionManager($app);
        });
    }
}

Store.php

<?php

namespace App\Session;

class Store extends \Illuminate\Session\Store
{
    public function get($key, $default = null)
    {
        $originalValue = parent::get($key, $default);

        if (is_null($originalValue)) {
            // do something
        }

        return $originalValue;
    }
}