Sunspikes\Ratelimit\Cache\ThrottlerCache

Complexity

Total Complexity

11

Size/Duplication

Total Lines	114
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	5

Importance

Changes

0

7 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	4	1
A	getItem()	0	6	1
A	hasItem()	0	4	1
A	setItem()	0	4	1
A	removeItem()	0	4	1
A	getThrottlerItem()	0	16	3
B	setThrottlerItem()	0	25	3

<?php
/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2015 Krishnaprasad MG <sunspikes@gmail.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

namespace Sunspikes\Ratelimit\Cache;

use Psr\Cache\CacheItemPoolInterface;
use Psr\Cache\CacheException as PsrCacheException;
use Sunspikes\Ratelimit\Cache\Exception\CacheAdapterException;
use Sunspikes\Ratelimit\Cache\Exception\ItemNotFoundException;

class ThrottlerCache implements ThrottlerCacheInterface
{
    /**
     * @var CacheItemPoolInterface
     */
    private $cacheItemPool;

    /**
     * ThrottlerCache constructor.
     *
     * @param CacheItemPoolInterface $cacheItemPool
     */
    public function __construct(CacheItemPoolInterface $cacheItemPool)
    {
        $this->cacheItemPool = $cacheItemPool;
    }

    /**
     * @param string $key
     *
     * @return ThrottlerItemInterface
     */
    public function getItem(string $key): ThrottlerItemInterface
    {
        $item = $this->getThrottlerItem($key);

        return $item;
    }

    /**
     * @param string $key
     *
     * @return bool
     */
    public function hasItem(string $key): bool
    {
        return $this->cacheItemPool->hasItem($key);
    }

    /**
     * @param string $key
     * @param mixed  $item
     * @return bool
     */
    public function setItem(string $key, ThrottlerItemInterface $item): bool
    {
        return $this->setThrottlerItem($key, $item);
    }

    /**
     * @param string $key
     */
    public function removeItem(string $key)
    {
        $this->cacheItemPool->deleteItem($key);
    }

    /**
     * @param string $key
     *
     * @return ThrottlerItemInterface
     * @throws CacheAdapterException
     * @throws ItemNotFoundException
     */
    private function getThrottlerItem(string $key): ThrottlerItemInterface
    {
        try {
            $item = $this->cacheItemPool->getItem($key);

            if ($item->isHit()) {
                $params = json_decode($item->get(), true);
                $class = $params['class'];

                return $class::createFromArray($params['data']);
            }
        } catch (PsrCacheException $e) {

Consider adding a comment why this CATCH block is empty.

        }

        throw new ItemNotFoundException('Item not found.');
    }

    /**
     * @param string                 $key
     * @param ThrottlerItemInterface $item
     *
     * @return bool
     * @throws CacheAdapterException
     */
    private function setThrottlerItem(string $key, ThrottlerItemInterface $item)
    {
        try {
            $cacheItem = $this->cacheItemPool->getItem($key);

            if ($cacheItem->isHit()) {
                $this->cacheItemPool->deleteItem($key);
            }
        } catch (PsrCacheException $e) {
            throw new CacheAdapterException($e->getMessage(), $e->getCode(), $e->getPrevious());
        }

        $cacheItem->set(
            json_encode(
                [
                    'class' => get_class($item),
                    'data'  => $item,
                ]
            )
        );

        $cacheItem->expiresAfter($item->getTtl());

        return $this->cacheItemPool->save($cacheItem);
    }
}