Completed
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by Jens
09:55
created

CacheAdapterFactory::__construct()   B

Complexity

Conditions 4
Paths 1

Size

Total Lines 27
Code Lines 16

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 18
CRAP Score 4

Importance

Changes 1
Bugs 0 Features 1
Metric Value
c 1
b 0
f 1
dl 0
loc 27
ccs 18
cts 18
cp 1
rs 8.5806
cc 4
eloc 16
nc 1
nop 0
crap 4
1
<?php
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/**
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 * @author @jayS-de <[email protected]>
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 * @created 19.01.15, 17:17
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 */
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namespace Commercetools\Core\Cache;
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use Doctrine\Common\Cache\Cache;
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use Commercetools\Core\Error\Message;
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use Commercetools\Core\Error\InvalidArgumentException;
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use Psr\Cache\CacheItemPoolInterface;
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/**
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 * @package Commercetools\Core\Cache
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 */
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class CacheAdapterFactory
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{
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    /**
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     * @var array
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     */
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    protected $callbacks = [];
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24 47
    public function __construct()
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    {
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        $this->registerCallback(
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            function ($cache) {
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                if ($cache instanceof CacheItemPoolInterface) {
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                    return new PsrCacheAdapter($cache);
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                }
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                return null;
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            }
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        )
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        ->registerCallback(
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            function ($cache) {
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                if ($cache instanceof Cache) {
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                    return new DoctrineCacheAdapter($cache);
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                }
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                return null;
40 47
            }
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        )
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        ->registerCallback(
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            function ($cache) {
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                if ($cache instanceof \Redis) {
0 ignored issues
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Bug introduced by
The class Redis does not exist. Did you forget a USE statement, or did you not list all dependencies?

This error could be the result of:

1. Missing dependencies

PHP Analyzer uses your composer.json file (if available) to determine the dependencies of your project and to determine all the available classes and functions. It expects the composer.json to be in the root folder of your repository.

Are you sure this class is defined by one of your dependencies, or did you maybe not list a dependency in either the require or require-dev section?

2. Missing use statement

PHP does not complain about undefined classes in ìnstanceof checks. For example, the following PHP code will work perfectly fine:

if ($x instanceof DoesNotExist) {
    // Do something.
}

If you have not tested against this specific condition, such errors might go unnoticed.

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45 1
                    return new PhpRedisCacheAdapter($cache);
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                }
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                return null;
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            }
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        );
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    }
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    /**
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     * registers a callback to resolve a cache adapter interface
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     *
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     * @param callable $callback
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     * @return $this
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     */
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    public function registerCallback(callable $callback)
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    {
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        $this->callbacks[] = $callback;
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        return $this;
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    }
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    /**
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     * returns the cache adapter interface for the application cache
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     *
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     * @param $cache
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     * @return CacheAdapterInterface
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     * @throws \InvalidArgumentException
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     */
72 47
    public function get($cache = null)
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    {
74 47
        if (is_null($cache)) {
75 36
            $cache = $this->getDefaultCache();
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        }
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78 47
        if ($cache instanceof CacheAdapterInterface) {
79 41
            return $cache;
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        }
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82 6
        foreach ($this->callbacks as $callBack) {
83 6
            $result = call_user_func($callBack, $cache);
84 6
            if ($result instanceof CacheAdapterInterface) {
85 6
                return $result;
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            }
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        }
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89 2
        throw new InvalidArgumentException(Message::INVALID_CACHE_ADAPTER);
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    }
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    /**
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     * creates a default cache adapter if no cache has been provided
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     *
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     * @return CacheAdapterInterface|null
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     */
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    protected function getDefaultCache()
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    {
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        if (extension_loaded('apcu')) {
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            return new ApcuCacheAdapter();
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        }
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        if (extension_loaded('apc')) {
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            return new ApcCacheAdapter();
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        }
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        return null;
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    }
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}
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