1#@!#!123s

: / opt / psa / admin / plib / modules / platform360 / vendor / tedivm / stash / src / Stash / Driver /
Filename : Ephemeral.php
back
<?php

/*
 * This file is part of the Stash package.
 *
 * (c) Robert Hafner <tedivm@tedivm.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace Platform360\Stash\Driver;

use Stash;
/**
 * The ephemeral class exists to assist with testing the main Stash class. Since this is a very minimal driver we can
 * test Stash without having to worry about underlying problems interfering.
 *
 * @package Stash
 * @author  Robert Hafner <tedivm@tedivm.com>
 */
class Ephemeral extends AbstractDriver
{
    /**
     * Contains the cached data.
     *
     * @var array
     */
    protected $store = array();
    protected $maxItems = 0;
    public function getDefaultOptions()
    {
        return ['maxItems' => 0];
    }
    /**
     * Allows setting maxItems.
     *
     * @param array $options
     *                       If maxItems is 0, infinite items will be cached
     */
    protected function setOptions(array $options = array())
    {
        $options += $this->getDefaultOptions();
        if (\array_key_exists('maxItems', $options)) {
            $maxItems = $options['maxItems'];
            if (!\is_int($maxItems) || $maxItems < 0) {
                throw new Stash\Exception\InvalidArgumentException('maxItems must be a positive integer.');
            }
            $this->maxItems = $maxItems;
            if ($this->maxItems > 0 && \count($this->store) > $this->maxItems) {
                $this->evict(\count($this->store) - $this->maxItems);
            }
        }
    }
    /**
     * Evicts the first $count items that were added to the store.
     *
     * Subclasses could implement more advanced eviction policies.
     *
     * @param int $count
     */
    protected function evict($count)
    {
        while ($count-- > 0 && \array_shift($this->store) !== null) {
        }
    }
    /**
     * {@inheritdoc}
     */
    public function getData($key)
    {
        $key = $this->getKeyIndex($key);
        return isset($this->store[$key]) ? $this->store[$key] : \false;
    }
    /**
     * Converts the key array into a passed function
     *
     * @param  array  $key
     * @return string
     */
    protected function getKeyIndex($key)
    {
        $index = '';
        foreach ($key as $value) {
            $index .= \str_replace('#', '#:', $value) . '#';
        }
        return $index;
    }
    /**
     * {@inheritdoc}
     */
    public function storeData($key, $data, $expiration)
    {
        if ($this->maxItems > 0 && \count($this->store) >= $this->maxItems) {
            $this->evict(\count($this->store) + 1 - $this->maxItems);
        }
        $this->store[$this->getKeyIndex($key)] = array('data' => $data, 'expiration' => $expiration);
        return \true;
    }
    /**
     * {@inheritdoc}
     */
    public function clear($key = null)
    {
        if (!isset($key)) {
            $this->store = array();
        } else {
            $clearIndex = $this->getKeyIndex($key);
            foreach ($this->store as $index => $data) {
                if (\strpos($index, $clearIndex) === 0) {
                    unset($this->store[$index]);
                }
            }
        }
        return \true;
    }
    /**
     * {@inheritdoc}
     */
    public function purge()
    {
        $now = \time();
        foreach ($this->store as $index => $data) {
            if ($data['expiration'] <= $now) {
                unset($this->store[$index]);
            }
        }
        return \true;
    }
}