Symfony 3 Cache Pool - SiteAccess awareness

cache.redis.yml

# File: app/config/cache_pool/cache.redis.yml

# Reusable service for redis cache for use in tests/docker/platform.sh
services:
    # create a new service
    cache.adapter.redis.sa_aware:
        class: eZ\DemoBundle\Cache\RedisSAAdapter
        abstract: true
        tags:
            - { name: cache.pool, provider: "cache.default_redis_provider", clearer: "cache.default_clearer" }
            - { name: monolog.logger, channel: "@cache" }
        arguments:
            - ""
            - ""
            - "0"
            - "@ezpublish.siteaccess"
        calls:
            - { method: "setLogger", arguments: [ "@?logger" ] }

    # Default configuration 
    cache.redis:
        parent: cache.adapter.redis.sa_aware
        tags:
            - name: cache.pool
              clearer: cache.app_clearer
              # Examples from vendor/symfony/symfony/src/Symfony/Component/Cache/Traits/RedisTrait.php:
              # redis://localhost:6379
              # redis://[email protected]:1234/13
              # redis://secret@/var/run/redis.sock/13?persistent_id=4&class=Redis&timeout=3&retry_interval=3
#              provider: 'redis://%cache_dsn%'
              provider: 'redis://localhost:6379'
              # namespace: caribou

RedisSAAdapter.php

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace eZ\DemoBundle\Cache;

use Symfony\Component\Cache\Adapter\AbstractAdapter;
use Symfony\Component\Cache\Traits\RedisTrait;

class RedisSAAdapter extends AbstractAdapter
{
    use RedisTrait;

    /**
     * @param \Redis|\RedisArray|\RedisCluster|\Predis\Client $redisClient The redis client
     * @param string $namespace The default namespace
     * @param int $defaultLifetime The default lifetime
     * @param \eZ\Publish\Core\MVC\Symfony\SiteAccess $siteAccessService
     */
    public function __construct($redisClient, $namespace = '', $defaultLifetime = 0, $siteAccessService)
    {
        // maybe ugly but works ;)
        if ($siteAccessService != null ) {
            $namespace = $siteAccessService->name;
        }
        $this->init($redisClient, $namespace, $defaultLifetime);
    }
}