CacheInvalidator::__construct() - Code Metrics - Inspection of "Add Symfony 6 compatibility (#520)" - FriendsOfSymfony/FOSHttpCache - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( bce216...5b6588 )

by David

created 2022-01-25 11:03 UTC

CacheInvalidator::__construct() A

↳ Parent: CacheInvalidator

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	2
CRAP Score	1

Importance

Changes

Metric	Value
cc	1
eloc	1
c	0
b	0
f	0
nc	1
nop	1
dl	0
loc	3
ccs	2
cts	2
cp	1
crap	1
rs	10

<?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;

use FOS\HttpCache\Exception\ExceptionCollection;
use FOS\HttpCache\Exception\InvalidArgumentException;
use FOS\HttpCache\Exception\ProxyResponseException;
use FOS\HttpCache\Exception\ProxyUnreachableException;
use FOS\HttpCache\Exception\UnsupportedProxyOperationException;
use FOS\HttpCache\ProxyClient\Invalidation\BanCapable;
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\ProxyClient\ProxyClient;
use FOS\HttpCache\ProxyClient\Symfony;
use Symfony\Component\EventDispatcher\EventDispatcher;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Toflar\Psr6HttpCacheStore\Psr6Store;
filter:
    dependency_paths: ["lib/*"]

/**
 * Manages HTTP cache invalidation.
 *
 * @author David de Boer <[email protected]>
 * @author David Buchmann <[email protected]>
 * @author André Rømcke <[email protected]>
 */
class CacheInvalidator
{
    /**
     * Value to check support of invalidatePath operation.
     */
    public const PATH = 'path';

    /**
     * Value to check support of refreshPath operation.
     */
    public const REFRESH = 'refresh';

    /**
     * Value to check support of invalidate and invalidateRegex operations.
     */
    public const INVALIDATE = 'invalidate';

    /**
     * Value to check support of invalidateTags operation.
     */
    public const TAGS = 'tags';

    /**
     * Value to check support of clearCache operation.
     */
    public const CLEAR = 'clear';

    /**
     * @var ProxyClient
     */
    private $cache;

    /**
     * @var EventDispatcherInterface
     */
    private $eventDispatcher;

    /**
     * Constructor.
     *
     * @param ProxyClient $cache HTTP cache
     */
    public function __construct(ProxyClient $cache)
    {
        $this->cache = $cache;
    }

    /**
     * Check whether this invalidator instance supports the specified
     * operation.
     *
     * Support for PATH means invalidatePath will work, REFRESH means
     * refreshPath works, TAGS means that invalidateTags works and
     * INVALIDATE is for the invalidate and invalidateRegex methods.
     *
     * @param string $operation one of the class constants
     *
     * @return bool
     *
     * @throws InvalidArgumentException
     */
    public function supports($operation)
    {
        switch ($operation) {
            case self::PATH:
                return $this->cache instanceof PurgeCapable;
            case self::REFRESH:
                return $this->cache instanceof RefreshCapable;
            case self::INVALIDATE:
                return $this->cache instanceof BanCapable;
            case self::TAGS:
                $supports = $this->cache instanceof TagCapable;
                if ($supports && $this->cache instanceof Symfony) {
                    return class_exists(Psr6Store::class);
                }

                return $supports;
            case self::CLEAR:
                return $this->cache instanceof ClearCapable;
            default:
                throw new InvalidArgumentException('Unknown operation '.$operation);
        }
    }

    /**
     * Set event dispatcher - may only be called once.
     *
     * @throws \Exception when trying to override the event dispatcher
     */
    public function setEventDispatcher(EventDispatcherInterface $eventDispatcher)
    {
        if ($this->eventDispatcher) {
            // if you want to set a custom event dispatcher, do so right after instantiating
            // the invalidator.
            throw new \Exception('You may not change the event dispatcher once it is set.');
        }
        $this->eventDispatcher = $eventDispatcher;
    }

    /**
     * Get the event dispatcher used by the cache invalidator.
     *
     * @return EventDispatcherInterface
     */
    public function getEventDispatcher()
    {
        if (!$this->eventDispatcher) {
            $this->eventDispatcher = new EventDispatcher();
        }

        return $this->eventDispatcher;
    }

    /**
     * Invalidate a path or URL.
     *
     * @param string $path    Path or URL
     * @param array  $headers HTTP headers (optional)
     *
     * @throws UnsupportedProxyOperationException
     *
     * @return $this
     */
    public function invalidatePath($path, array $headers = [])
    {
        if (!$this->cache instanceof PurgeCapable) {
            throw UnsupportedProxyOperationException::cacheDoesNotImplement('PURGE');
        }

        $this->cache->purge($path, $headers);

        return $this;
    }

    /**
     * Refresh a path or URL.
     *
     * @param string $path    Path or URL
     * @param array  $headers HTTP headers (optional)
     *
     * @see RefreshCapable::refresh()
     *
     * @throws UnsupportedProxyOperationException
     *
     * @return $this
     */
    public function refreshPath($path, array $headers = [])
    {
        if (!$this->cache instanceof RefreshCapable) {
            throw UnsupportedProxyOperationException::cacheDoesNotImplement('REFRESH');
        }

        $this->cache->refresh($path, $headers);

        return $this;
    }

    /**
     * Invalidate all cached objects matching the provided HTTP headers.
     *
     * Each header is a a POSIX regular expression, for example
     * ['X-Host' => '^(www\.)?(this|that)\.com$']
     *
     * @see BanCapable::ban()
     *
     * @param array $headers HTTP headers that path must match to be banned
     *
     * @throws UnsupportedProxyOperationException If HTTP cache does not support BAN requests
     *
     * @return $this
     */
    public function invalidate(array $headers)
    {
        if (!$this->cache instanceof BanCapable) {
            throw UnsupportedProxyOperationException::cacheDoesNotImplement('BAN');
        }

        $this->cache->ban($headers);

        return $this;
    }

    /**
     * Remove/Expire cache objects based on cache tags.
     *
     * @see TagCapable::tags()
     *
     * @param array $tags Tags that should be removed/expired from the cache
     *
     * @throws UnsupportedProxyOperationException If HTTP cache does not support Tags invalidation
     *
     * @return $this
     */
    public function invalidateTags(array $tags)
    {
        if (!$this->cache instanceof TagCapable) {
            throw UnsupportedProxyOperationException::cacheDoesNotImplement('Tags');
        }
        $this->cache->invalidateTags($tags);

        return $this;
    }

    /**
     * Invalidate URLs based on a regular expression for the URI, an optional
     * content type and optional limit to certain hosts.
     *
     * The hosts parameter can either be a regular expression, e.g.
     * '^(www\.)?(this|that)\.com$' or an array of exact host names, e.g.
     * ['example.com', 'other.net']. If the parameter is empty, all hosts
     * are matched.
     *
     * @see BanCapable::banPath()
     *
     * @param string       $path        Regular expression pattern for URI to
     *                                  invalidate
     * @param string       $contentType Regular expression pattern for the content
     *                                  type to limit banning, for instance 'text'
     * @param array|string $hosts       Regular expression of a host name or list of
     *                                  exact host names to limit banning
     *
     * @throws UnsupportedProxyOperationException If HTTP cache does not support BAN requests
     *
     * @return $this
     */
    public function invalidateRegex($path, $contentType = null, $hosts = null)
    {
        if (!$this->cache instanceof BanCapable) {
            throw UnsupportedProxyOperationException::cacheDoesNotImplement('BAN');
        }

        $this->cache->banPath($path, $contentType, $hosts);

        return $this;
    }

    /**
     * Clear the cache completely.
     *
     * @throws UnsupportedProxyOperationException if HTTP cache does not support clearing the cache completely
     *
     * @return $this
     */
    public function clearCache()
    {
        if (!$this->cache instanceof ClearCapable) {
            throw UnsupportedProxyOperationException::cacheDoesNotImplement('CLEAR');
        }

        $this->cache->clear();

        return $this;
    }

    /**
     * Send all pending invalidation requests.
     *
     * @return int the number of cache invalidations performed per caching server
     *
     * @throws ExceptionCollection if any errors occurred during flush
     */
    public function flush()
    {
        try {
            return $this->cache->flush();
        } catch (ExceptionCollection $exceptions) {
            foreach ($exceptions as $exception) {
                $event = new Event();
                $event->setException($exception);
                if ($exception instanceof ProxyResponseException) {
                    $this->getEventDispatcher()->dispatch($event, Events::PROXY_RESPONSE_ERROR);
                } elseif ($exception instanceof ProxyUnreachableException) {
                    $this->getEventDispatcher()->dispatch($event, Events::PROXY_UNREACHABLE_ERROR);
                }
            }

            throw $exceptions;
        }
    }
}


1		<?php
2
3		/*
4		* This file is part of the FOSHttpCache package.
5		*
6		* (c) FriendsOfSymfony <http://friendsofsymfony.github.com/>
7		*
8		* For the full copyright and license information, please view the LICENSE
9		* file that was distributed with this source code.
10		*/
11
12		namespace FOS\HttpCache;
13
14		use FOS\HttpCache\Exception\ExceptionCollection;
15		use FOS\HttpCache\Exception\InvalidArgumentException;
16		use FOS\HttpCache\Exception\ProxyResponseException;
17		use FOS\HttpCache\Exception\ProxyUnreachableException;
18		use FOS\HttpCache\Exception\UnsupportedProxyOperationException;
19		use FOS\HttpCache\ProxyClient\Invalidation\BanCapable;
20		use FOS\HttpCache\ProxyClient\Invalidation\ClearCapable;
21		use FOS\HttpCache\ProxyClient\Invalidation\PurgeCapable;
22		use FOS\HttpCache\ProxyClient\Invalidation\RefreshCapable;
23		use FOS\HttpCache\ProxyClient\Invalidation\TagCapable;
24		use FOS\HttpCache\ProxyClient\ProxyClient;
25		use FOS\HttpCache\ProxyClient\Symfony;
26		use Symfony\Component\EventDispatcher\EventDispatcher;
27		use Symfony\Component\EventDispatcher\EventDispatcherInterface;
28		use Toflar\Psr6HttpCacheStore\Psr6Store;
		0 ignored issues – show Bug introduced 2021-12-22 13:06 UTC by Report Bug Copy Issue Report The type `Toflar\Psr6HttpCacheStore\Psr6Store` was not found. Maybe you did not declare it correctly or list all dependencies? The issue could also be caused by a filter entry in the build configuration. If the path has been excluded in your configuration, e.g. `excluded_paths: ["lib/"]`, you can move it to the dependency path list as follows: filter: dependency_paths: ["lib/"] For further information see https://scrutinizer-ci.com/docs/tools/php/php-scrutinizer/#list-dependency-paths Loading history...
29
30		/**
31		* Manages HTTP cache invalidation.
32		*
33		* @author David de Boer <[email protected]>
34		* @author David Buchmann <[email protected]>
35		* @author André Rømcke <[email protected]>
36		*/
37		class CacheInvalidator
38		{
39		/**
40		* Value to check support of invalidatePath operation.
41		*/
42		public const PATH = 'path';
43
44		/**
45		* Value to check support of refreshPath operation.
46		*/
47		public const REFRESH = 'refresh';
48
49		/**
50		* Value to check support of invalidate and invalidateRegex operations.
51		*/
52		public const INVALIDATE = 'invalidate';
53
54		/**
55		* Value to check support of invalidateTags operation.
56		*/
57		public const TAGS = 'tags';
58
59		/**
60		* Value to check support of clearCache operation.
61		*/
62		public const CLEAR = 'clear';
63
64		/**
65		* @var ProxyClient
66		*/
67		private $cache;
68
69		/**
70		* @var EventDispatcherInterface
71		*/
72		private $eventDispatcher;
73
74		/**
75		* Constructor.
76		*
77		* @param ProxyClient $cache HTTP cache
78		*/
79	17	public function __construct(ProxyClient $cache)
80		{
81	17	$this->cache = $cache;
82	17	}
83
84		/**
85		* Check whether this invalidator instance supports the specified
86		* operation.
87		*
88		* Support for PATH means invalidatePath will work, REFRESH means
89		* refreshPath works, TAGS means that invalidateTags works and
90		* INVALIDATE is for the invalidate and invalidateRegex methods.
91		*
92		* @param string $operation one of the class constants
93		*
94		* @return bool
95		*
96		* @throws InvalidArgumentException
97		*/
98	3	public function supports($operation)
99		{
100		switch ($operation) {
101	3	case self::PATH:
102	2	return $this->cache instanceof PurgeCapable;
103	3	case self::REFRESH:
104	2	return $this->cache instanceof RefreshCapable;
105	3	case self::INVALIDATE:
106	2	return $this->cache instanceof BanCapable;
107	3	case self::TAGS:
108	2	$supports = $this->cache instanceof TagCapable;
109	2	if ($supports && $this->cache instanceof Symfony) {
110		return class_exists(Psr6Store::class);
111		}
112
113	2	return $supports;
114	1	case self::CLEAR:
115		return $this->cache instanceof ClearCapable;
116		default:
117	1	throw new InvalidArgumentException('Unknown operation '.$operation);
118		}
119		}
120
121		/**
122		* Set event dispatcher - may only be called once.
123		*
124		* @throws \Exception when trying to override the event dispatcher
125		*/
126	2	public function setEventDispatcher(EventDispatcherInterface $eventDispatcher)
127		{
128	2	if ($this->eventDispatcher) {
129		// if you want to set a custom event dispatcher, do so right after instantiating
130		// the invalidator.
131	1	throw new \Exception('You may not change the event dispatcher once it is set.');
132		}
133	2	$this->eventDispatcher = $eventDispatcher;
134	2	}
135
136		/**
137		* Get the event dispatcher used by the cache invalidator.
138		*
139		* @return EventDispatcherInterface
140		*/
141	2	public function getEventDispatcher()
142		{
143	2	if (!$this->eventDispatcher) {
144	1	$this->eventDispatcher = new EventDispatcher();
145		}
146
147	2	return $this->eventDispatcher;
148		}
149
150		/**
151		* Invalidate a path or URL.
152		*
153		* @param string $path Path or URL
154		* @param array $headers HTTP headers (optional)
155		*
156		* @throws UnsupportedProxyOperationException
157		*
158		* @return $this
159		*/
160	2	public function invalidatePath($path, array $headers = [])
161		{
162	2	if (!$this->cache instanceof PurgeCapable) {
163	1	throw UnsupportedProxyOperationException::cacheDoesNotImplement('PURGE');
164		}
165
166	1	$this->cache->purge($path, $headers);
167
168	1	return $this;
169		}
170
171		/**
172		* Refresh a path or URL.
173		*
174		* @param string $path Path or URL
175		* @param array $headers HTTP headers (optional)
176		*
177		* @see RefreshCapable::refresh()
178		*
179		* @throws UnsupportedProxyOperationException
180		*
181		* @return $this
182		*/
183	2	public function refreshPath($path, array $headers = [])
184		{
185	2	if (!$this->cache instanceof RefreshCapable) {
186	1	throw UnsupportedProxyOperationException::cacheDoesNotImplement('REFRESH');
187		}
188
189	1	$this->cache->refresh($path, $headers);
190
191	1	return $this;
192		}
193
194		/**
195		* Invalidate all cached objects matching the provided HTTP headers.
196		*
197		* Each header is a a POSIX regular expression, for example
198		* ['X-Host' => '^(www\.)?(this\|that)\.com$']
199		*
200		* @see BanCapable::ban()
201		*
202		* @param array $headers HTTP headers that path must match to be banned
203		*
204		* @throws UnsupportedProxyOperationException If HTTP cache does not support BAN requests
205		*
206		* @return $this
207		*/
208	2	public function invalidate(array $headers)
209		{
210	2	if (!$this->cache instanceof BanCapable) {
211	1	throw UnsupportedProxyOperationException::cacheDoesNotImplement('BAN');
212		}
213
214	1	$this->cache->ban($headers);
215
216	1	return $this;
217		}
218
219		/**
220		* Remove/Expire cache objects based on cache tags.
221		*
222		* @see TagCapable::tags()
223		*
224		* @param array $tags Tags that should be removed/expired from the cache
225		*
226		* @throws UnsupportedProxyOperationException If HTTP cache does not support Tags invalidation
227		*
228		* @return $this
229		*/
230	3	public function invalidateTags(array $tags)
231		{
232	3	if (!$this->cache instanceof TagCapable) {
233	1	throw UnsupportedProxyOperationException::cacheDoesNotImplement('Tags');
234		}
235	2	$this->cache->invalidateTags($tags);
236
237	2	return $this;
238		}
239
240		/**
241		* Invalidate URLs based on a regular expression for the URI, an optional
242		* content type and optional limit to certain hosts.
243		*
244		* The hosts parameter can either be a regular expression, e.g.
245		* '^(www\.)?(this\|that)\.com$' or an array of exact host names, e.g.
246		* ['example.com', 'other.net']. If the parameter is empty, all hosts
247		* are matched.
248		*
249		* @see BanCapable::banPath()
250		*
251		* @param string $path Regular expression pattern for URI to
252		* invalidate
253		* @param string $contentType Regular expression pattern for the content
254		* type to limit banning, for instance 'text'
255		* @param array\|string $hosts Regular expression of a host name or list of
256		* exact host names to limit banning
257		*
258		* @throws UnsupportedProxyOperationException If HTTP cache does not support BAN requests
259		*
260		* @return $this
261		*/
262	2	public function invalidateRegex($path, $contentType = null, $hosts = null)
263		{
264	2	if (!$this->cache instanceof BanCapable) {
265	1	throw UnsupportedProxyOperationException::cacheDoesNotImplement('BAN');
266		}
267
268	1	$this->cache->banPath($path, $contentType, $hosts);
269
270	1	return $this;
271		}
272
273		/**
274		* Clear the cache completely.
275		*
276		* @throws UnsupportedProxyOperationException if HTTP cache does not support clearing the cache completely
277		*
278		* @return $this
279		*/
280		public function clearCache()
281		{
282		if (!$this->cache instanceof ClearCapable) {
283		throw UnsupportedProxyOperationException::cacheDoesNotImplement('CLEAR');
284		}
285
286		$this->cache->clear();
287
288		return $this;
289		}
290
291		/**
292		* Send all pending invalidation requests.
293		*
294		* @return int the number of cache invalidations performed per caching server
295		*
296		* @throws ExceptionCollection if any errors occurred during flush
297		*/
298	3	public function flush()
299		{
300		try {
301	3	return $this->cache->flush();
302	1	} catch (ExceptionCollection $exceptions) {
303	1	foreach ($exceptions as $exception) {
304	1	$event = new Event();
305	1	$event->setException($exception);
306	1	if ($exception instanceof ProxyResponseException) {
307	1	$this->getEventDispatcher()->dispatch($event, Events::PROXY_RESPONSE_ERROR);
308	1	} elseif ($exception instanceof ProxyUnreachableException) {
309	1	$this->getEventDispatcher()->dispatch($event, Events::PROXY_UNREACHABLE_ERROR);
310		}
311		}
312
313	1	throw $exceptions;
314		}
315		}
316		}
317

FriendsOfSymfony / FOSHttpCache

Push — master ( bce216...5b6588 )

CacheInvalidator::__construct() A

Complexity

Size

Duplication

Code Coverage

Importance

Duplication Side-by-Side

Filter issues like