YetiForceCompany/YetiForceCRM

<?php
/**
 * XCache caching file.
 *
 * @package App
 *
 * @copyright YetiForce S.A.
 * @license   YetiForce Public License 6.5 (licenses/LicenseEN.txt or yetiforce.com)
 * @author    Mariusz Krzaczkowski <m.krzaczkowski@yetiforce.com>
 */

namespace App\Cache;

use App\Exceptions\CacheException;

/**
 * XCache caching class.
 */
class XCache
{
    /**
     * Class constructor.
     *
     * @throws CacheException
     */
    public function __construct()
    {
        if (!static::isSupported()) {
            throw new CacheException('XCache is not enabled');
        }
    }

    /**
     * Is apcu is available.
     *
     * @return bool
     */
    public static function isSupported()
    {
        return \extension_loaded('xcache');
    }

    /**
     * Returns a cache item representing the specified key.
     *
     * @param array|string $key Cache ID
     *
     * @return array|string
     */
    public function get($key)
    {
        return xcache_get($key);
    }

    /**
     * Confirms if the cache contains specified cache item.
     *
     * @param array|string $key Cache ID
     *
     * @return bool
     */
    public function has($key)
    {
        return xcache_isset($key);
    }

    /**
     * Cache save.
     *
     * @param string       $key      Cache ID
     * @param array|string $value    Data to store
     * @param int          $duration Cache TTL (in seconds)
     *
     * @return bool
     */
    public function save($key, $value, $duration)
    {
        return xcache_set($key, $value, $duration);
    }

    /**
     * Removes the item from the cache.
     *
     * @param array|string $key Cache ID
     *
     * @return bool
     */
    public function delete($key)
    {
        return xcache_unset($key);
    }

    /**
     * Deletes all items in the cache.
     *
     * @return bool
     */
    public function clear()
    {
        for ($i = 0, $max = xcache_count(XC_TYPE_VAR); $i < $max; ++$i) {
            if (false === xcache_clear_cache(XC_TYPE_VAR, $i)) {
                return false;
            }
        }
        return true;
    }
}