phpFastCache\Drivers\Zendshm\Driver

Complexity

Total Complexity

16

Size/Duplication

Total Lines	126
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	6

Importance

Changes

0

9 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	8	2
A	driverCheck()	0	8	3
A	driverWrite()	0	13	3
A	driverRead()	0	9	2
A	driverDelete()	0	11	2
A	driverClear()	0	4	1
A	driverConnect()	0	4	1
A	getHelp()	0	8	1
A	getStats()	0	9	1

<?php
/**
 *
 * This file is part of phpFastCache.
 *
 * @license MIT License (MIT)
 *
 * For full copyright and license information, please see the docs/CREDITS.txt file.
 *
 * @author Lucas Brucksch <support@hammermaps.de>
 *
 */

namespace phpFastCache\Drivers\Zendshm;

use phpFastCache\Core\Pool\DriverBaseTrait;
use phpFastCache\Core\Pool\ExtendedCacheItemPoolInterface;
use phpFastCache\Entities\driverStatistic;
use phpFastCache\Exceptions\phpFastCacheDriverCheckException;
use phpFastCache\Exceptions\phpFastCacheDriverException;
use phpFastCache\Exceptions\phpFastCacheInvalidArgumentException;
use Psr\Cache\CacheItemInterface;

/**
 * Class Driver (zend memory cache)
 * Requires Zend Data Cache Functions from ZendServer
 * @package phpFastCache\Drivers
 */
class Driver implements ExtendedCacheItemPoolInterface
{
    use DriverBaseTrait;
    /**
     * Driver constructor.
     * @param array $config
     * @throws phpFastCacheDriverException
     */
    public function __construct(array $config = [])
    {
        $this->setup($config);

        if (!$this->driverCheck()) {
            throw new phpFastCacheDriverCheckException(sprintf(self::DRIVER_CHECK_FAILURE, $this->getDriverName()));
        }
    }

    /**
     * @return bool
     */
    public function driverCheck()
    {
        if (extension_loaded('Zend Data Cache') && function_exists('zend_shm_cache_store')) {
            return true;
        } else {
            return false;
        }
    }

    /**
     * @param \Psr\Cache\CacheItemInterface $item
     * @return mixed
     * @throws phpFastCacheInvalidArgumentException
     */
    protected function driverWrite(CacheItemInterface $item)
    {
        /**
         * Check for Cross-Driver type confusion
         */
        if ($item instanceof Item) {
            $ttl = $item->getExpirationDate()->getTimestamp() - time();

            return zend_shm_cache_store($item->getKey(), $this->driverPreWrap($item), ($ttl > 0 ? $ttl : 0));
        } else {
            throw new phpFastCacheInvalidArgumentException('Cross-Driver type confusion detected');
        }
    }

    /**
     * @param \Psr\Cache\CacheItemInterface $item
     * @return mixed
     */
    protected function driverRead(CacheItemInterface $item)
    {
        $data = zend_shm_cache_fetch($item->getKey());
        if ($data === false) {
            return null;
        }

        return $data;
    }

    /**
     * @param \Psr\Cache\CacheItemInterface $item
     * @return bool
     * @throws phpFastCacheInvalidArgumentException
     */
    protected function driverDelete(CacheItemInterface $item)
    {
        /**
         * Check for Cross-Driver type confusion
         */
        if ($item instanceof Item) {
            return zend_shm_cache_delete($item->getKey());
        } else {
            throw new phpFastCacheInvalidArgumentException('Cross-Driver type confusion detected');
        }
    }

    /**
     * @return bool
     */
    protected function driverClear()
    {
        return @zend_shm_cache_clear();
    }

    /**
     * @return bool
     */
    protected function driverConnect()
    {
        return true;
    }

    /********************
     *
     * PSR-6 Extended Methods
     *
     *******************/

    /**
     * @return string
     */
    public static function getHelp()
    {
        return <<<HELP
<p>
This driver rely on Zend Server 8.5+, see: http://www.zend.com/en/products/zend_server
</p>
HELP;
    }

    /**
     * @return driverStatistic
     */
    public function getStats()
    {
        $stats = (array) zend_shm_cache_info();
        return (new driverStatistic())
            ->setData(implode(', ', array_keys($this->namespaces)))

The property namespaces does not exist. Did you maybe forget to declare it?

            ->setInfo(sprintf("The Zend memory have %d item(s) in cache.\n For more information see RawData.",$stats[ 'items_total' ]))
            ->setRawData($stats)
            ->setSize($stats[ 'memory_total' ]);
    }
}