eZ\Bundle\EzPublishCoreBundle\Imagine\Cache\AliasGeneratorDecorator

Complexity

Total Complexity

4

Size/Duplication

Total Lines	63
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	6

Importance

Changes

0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	5	1
A	getVariation()	0	12	2
A	getCacheKey()	0	10	1

<?php

/**
 * @copyright Copyright (C) eZ Systems AS. All rights reserved.
 * @license For full copyright and license information view LICENSE file distributed with this source code.
 */
namespace eZ\Bundle\EzPublishCoreBundle\Imagine\Cache;

use eZ\Publish\API\Repository\Values\Content\Field;
use eZ\Publish\API\Repository\Values\Content\VersionInfo;
use eZ\Publish\SPI\Variation\VariationHandler;
use Psr\Cache\CacheItemPoolInterface;

/**
 * Persistence Cache layer for AliasGenerator.
 */
class AliasGeneratorDecorator implements VariationHandler
{
    /**
     * @var \eZ\Publish\SPI\Variation\VariationHandler
     */
    private $aliasGenerator;

    /**
     * @var \Psr\Cache\CacheItemPoolInterface
     */
    private $cache;

    /**
     * @param \eZ\Publish\SPI\Variation\VariationHandler $aliasGenerator
     * @param \Psr\Cache\CacheItemPoolInterface $cache
     */
    public function __construct(VariationHandler $aliasGenerator, CacheItemPoolInterface $cache)
    {
        $this->aliasGenerator = $aliasGenerator;
        $this->cache = $cache;
    }

    /**
     * @param \eZ\Publish\API\Repository\Values\Content\Field $field
     * @param \eZ\Publish\API\Repository\Values\Content\VersionInfo $versionInfo
     * @param string $variationName
     * @param array $parameters
     *
     * @return \eZ\Publish\SPI\Variation\Values\Variation
     *
     * @throws \Psr\Cache\InvalidArgumentException
     */
    public function getVariation(Field $field, VersionInfo $versionInfo, $variationName, array $parameters = [])
    {
        $item = $this->cache->getItem($this->getCacheKey($field, $versionInfo, $variationName));
        $image = $item->get();
        if (!$item->isHit()) {
            $image = $this->aliasGenerator->getVariation($field, $versionInfo, $variationName, $parameters);
            $item->set($image);
            $this->cache->save($item);
        }

        return $image;
    }

    /**
     * @param \eZ\Publish\API\Repository\Values\Content\Field $field
     * @param \eZ\Publish\API\Repository\Values\Content\VersionInfo $versionInfo
     * @param string $variationName
     *
     * @return string
     */
    private function getCacheKey(Field $field, VersionInfo $versionInfo, $variationName)
    {
        return sprintf(
            'ez-image-variation-%d-%d-%s-%s',
            $versionInfo->getContentInfo()->id,
            $versionInfo->id,
            $field->id,
            $variationName
        );
    }
}