FOS\HttpCache\ProxyClient\Symfony

Complexity

Total Complexity

6

Size/Duplication

Total Lines	85
Duplicated Lines	8.24 %

Coupling/Cohesion

Components	1
Dependencies	2

Test Coverage

Coverage

100%

Importance

Changes

0

5 Methods

Rating	Name	Duplication	Size	Complexity
A	purge()	0	6	1
A	refresh()	7	7	1
A	configureOptions()	0	20	1
A	invalidateTags()	0	17	2
A	clearCache()	0	8	1

<?php

/*
 * This file is part of the FOSHttpCache package.
 *
 * (c) FriendsOfSymfony <http://friendsofsymfony.github.com/>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace FOS\HttpCache\ProxyClient;

use FOS\HttpCache\ProxyClient\Invalidation\ClearCapable;
use FOS\HttpCache\ProxyClient\Invalidation\PurgeCapable;
use FOS\HttpCache\ProxyClient\Invalidation\RefreshCapable;
use FOS\HttpCache\ProxyClient\Invalidation\TagCapable;
use FOS\HttpCache\SymfonyCache\PurgeListener;
use FOS\HttpCache\SymfonyCache\PurgeTagsListener;

/**
 * Symfony HttpCache invalidator.
 *
 * Additional constructor options:
 * - purge_method:         HTTP method that identifies purge requests.
 *
 * @author David de Boer <david@driebit.nl>
 * @author David Buchmann <mail@davidbu.ch>
 */
class Symfony extends HttpProxyClient implements PurgeCapable, RefreshCapable, TagCapable, ClearCapable

There is one abstract method clear in this class; you could implement it, or declare this class as abstract.

{
    const HTTP_METHOD_REFRESH = 'GET';

    /**
     * {@inheritdoc}
     */
    public function purge($url, array $headers = [])
    {
        $this->queueRequest($this->options['purge_method'], $url, $headers);

        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function refresh($url, array $headers = [])

This method seems to be duplicated in your project.

    {
        $headers = array_merge($headers, ['Cache-Control' => 'no-cache']);
        $this->queueRequest(self::HTTP_METHOD_REFRESH, $url, $headers);

        return $this;
    }

    protected function configureOptions()
    {
        $resolver = parent::configureOptions();
        $resolver->setDefaults([
            'purge_method' => PurgeListener::DEFAULT_PURGE_METHOD,
            'clear_cache_header' => PurgeListener::DEFAULT_CLEAR_CACHE_HEADER,
            'tags_method' => PurgeTagsListener::DEFAULT_TAGS_METHOD,
            'tags_header' => PurgeTagsListener::DEFAULT_TAGS_HEADER,
            'tags_invalidate_path' => '/',
            'header_length' => 7500,
        ]);
        $resolver->setAllowedTypes('purge_method', 'string');
        $resolver->setAllowedTypes('clear_cache_header', 'string');
        $resolver->setAllowedTypes('tags_method', 'string');
        $resolver->setAllowedTypes('tags_header', 'string');
        $resolver->setAllowedTypes('tags_invalidate_path', 'string');
        $resolver->setAllowedTypes('header_length', 'int');

        return $resolver;
    }

    /**
     * Remove/Expire cache objects based on cache tags.
     *
     * @param array $tags Tags that should be removed/expired from the cache
     *
     * @return $this
     */
    public function invalidateTags(array $tags)
    {
        $escapedTags = $this->escapeTags($tags);

        $chunkSize = $this->determineTagsPerHeader($escapedTags, ',');

        foreach (array_chunk($escapedTags, $chunkSize) as $tagchunk) {
            $this->queueRequest(
                $this->options['tags_method'],
                $this->options['tags_invalidate_path'],
                [$this->options['tags_header'] => implode(',', $tagchunk)],
                false
            );
        }

        return $this;
    }

    /**
     * Clear the cache completely.
     *
     * @return $this
     */
    public function clearCache()
    {
        $this->queueRequest(
            $this->options['purge_method'], '/',
            [$this->options['clear_cache_header'] => 'true'],
            false
        );
    }
}