Commercetools\Core\Cache\CacheAdapterFactory

Complexity

Total Complexity

16

Size/Duplication

Total Lines	101
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	8

Test Coverage

Coverage

82.05%

Importance

Changes	2
Bugs	0	Features	1

4 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	20	4
C	get()	0	23	7
A	getDefaultCache()	0	18	4
A	registerCallback()	0	6	1

<?php
/**
 * @author @jayS-de <jens.schulze@commercetools.de>
 * @created 19.01.15, 17:17
 */

namespace Commercetools\Core\Cache;

use Cache\Adapter\Filesystem\FilesystemCachePool;
use Doctrine\Common\Cache\Cache;
use Commercetools\Core\Error\Message;
use Commercetools\Core\Error\InvalidArgumentException;
use League\Flysystem\Adapter\Local;
use League\Flysystem\Filesystem;
use Psr\Cache\CacheItemPoolInterface;

/**
 * @package Commercetools\Core\Cache
 */
class CacheAdapterFactory
{
    /**
     * @var string
     */
    private $cacheDir;

    /**
     * @var array
     */
    protected $callbacks = [];

    public function __construct($cacheDir = null)
    {
        $this->cacheDir = !is_null($cacheDir) ? $cacheDir : realpath(__DIR__ . '/../..');
        $this->registerCallback(
            function ($cache) {
                if ($cache instanceof Cache) {
                    return new DoctrineCacheAdapter($cache);

The class Commercetools\Core\Cache\DoctrineCacheAdapter has been deprecated with message: use a PSR-6 cache adapter instead. Will be removed with v2.0

                }
                return null;
            }
        )
        ->registerCallback(
            function ($cache) {
                if ($cache instanceof \Redis) {

The class Redis does not exist. Did you forget a USE statement, or did you not list all dependencies?

                    return new PhpRedisCacheAdapter($cache);

The class Commercetools\Core\Cache\PhpRedisCacheAdapter has been deprecated with message: use a PSR-6 cache adapter instead. Will be removed with v2.0

                }
                return null;
            }
        );
    }

    /**
     * registers a callback to resolve a cache adapter interface
     *
     * @param callable $callback
     * @return $this
     */
    public function registerCallback(callable $callback)
    {
        $this->callbacks[] = $callback;

        return $this;
    }

    /**
     * returns the cache adapter interface for the application cache
     *
     * @param $cache
     * @return CacheAdapterInterface|CacheItemPoolInterface
     * @throws \InvalidArgumentException
     */
    public function get($cache = null)
    {
        if (is_null($cache)) {
            $cache = $this->getDefaultCache();
        }

        if ($cache instanceof CacheAdapterInterface) {
            return $cache;
        }

        if ($cache instanceof CacheItemPoolInterface) {
            return $cache;
        }

        foreach ($this->callbacks as $callBack) {
            $result = call_user_func($callBack, $cache);
            if ($result instanceof CacheAdapterInterface || $result instanceof CacheItemPoolInterface) {
                return $result;
            }
        }

        throw new InvalidArgumentException(Message::INVALID_CACHE_ADAPTER);
    }

    /**
     * creates a default cache adapter if no cache has been provided
     *
     * @return CacheAdapterInterface|null
     */
    protected function getDefaultCache()
    {
        if (extension_loaded('apcu')) {
            return new ApcuCacheAdapter();

The class Commercetools\Core\Cache\ApcuCacheAdapter has been deprecated with message: use a PSR-6 cache adapter instead. Will be removed with v2.0

        }

        if (extension_loaded('apc')) {
            return new ApcCacheAdapter();

The class Commercetools\Core\Cache\ApcCacheAdapter has been deprecated with message: use a PSR-6 cache adapter instead. Will be removed with v2.0

        }

        if (class_exists('\Cache\Adapter\Filesystem\FilesystemCachePool')) {
            $filesystemAdapter = new Local($this->cacheDir);
            $filesystem        = new Filesystem($filesystemAdapter);
            return new FilesystemCachePool($filesystem);
        }

        return null;
    }
}