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independent-analytics / vendor / doctrine / cache / lib / Doctrine / Common / Cache / MemcachedCache.php

independent-analytics / vendor / doctrine / cache / lib / Doctrine / Common / Cache Last commit date

MemcachedCache.php

144 lines

1	<?php
2
3	namespace IAWP_SCOPED\Doctrine\Common\Cache;
4
5	use Memcached;
6	use function array_keys;
7	use function preg_match;
8	use function strlen;
9	use function strpos;
10	use function time;
11	/**
12	* Memcached cache provider.
13	*
14	* @deprecated Deprecated without replacement in doctrine/cache 1.11. This class will be dropped in 2.0
15	*
16	* @link www.doctrine-project.org
17	* @internal
18	*/
19	class MemcachedCache extends CacheProvider
20	{
21	public const CACHE_ID_MAX_LENGTH = 250;
22	/** @var Memcached\|null */
23	private $memcached;
24	/**
25	* Sets the memcache instance to use.
26	*
27	* @return void
28	*/
29	public function setMemcached(Memcached $memcached)
30	{
31	$this->memcached = $memcached;
32	}
33	/**
34	* Gets the memcached instance used by the cache.
35	*
36	* @return Memcached\|null
37	*/
38	public function getMemcached()
39	{
40	return $this->memcached;
41	}
42	/**
43	* {@inheritdoc}
44	*/
45	protected function doFetch($id)
46	{
47	return $this->memcached->get($id);
48	}
49	/**
50	* {@inheritdoc}
51	*/
52	protected function doFetchMultiple(array $keys)
53	{
54	return $this->memcached->getMulti($keys) ?: [];
55	}
56	/**
57	* {@inheritdoc}
58	*/
59	protected function doSaveMultiple(array $keysAndValues, $lifetime = 0)
60	{
61	foreach (array_keys($keysAndValues) as $id) {
62	$this->validateCacheId($id);
63	}
64	if ($lifetime > 30 * 24 * 3600) {
65	$lifetime = time() + $lifetime;
66	}
67	return $this->memcached->setMulti($keysAndValues, $lifetime);
68	}
69	/**
70	* {@inheritdoc}
71	*/
72	protected function doContains($id)
73	{
74	$this->memcached->get($id);
75	return $this->memcached->getResultCode() === Memcached::RES_SUCCESS;
76	}
77	/**
78	* {@inheritdoc}
79	*/
80	protected function doSave($id, $data, $lifeTime = 0)
81	{
82	$this->validateCacheId($id);
83	if ($lifeTime > 30 * 24 * 3600) {
84	$lifeTime = time() + $lifeTime;
85	}
86	return $this->memcached->set($id, $data, (int) $lifeTime);
87	}
88	/**
89	* {@inheritdoc}
90	*/
91	protected function doDeleteMultiple(array $keys)
92	{
93	return $this->memcached->deleteMulti($keys) \|\| $this->memcached->getResultCode() === Memcached::RES_NOTFOUND;
94	}
95	/**
96	* {@inheritdoc}
97	*/
98	protected function doDelete($id)
99	{
100	return $this->memcached->delete($id) \|\| $this->memcached->getResultCode() === Memcached::RES_NOTFOUND;
101	}
102	/**
103	* {@inheritdoc}
104	*/
105	protected function doFlush()
106	{
107	return $this->memcached->flush();
108	}
109	/**
110	* {@inheritdoc}
111	*/
112	protected function doGetStats()
113	{
114	$stats = $this->memcached->getStats();
115	$servers = $this->memcached->getServerList();
116	$key = $servers[0]['host'] . ':' . $servers[0]['port'];
117	$stats = $stats[$key];
118	return [Cache::STATS_HITS => $stats['get_hits'], Cache::STATS_MISSES => $stats['get_misses'], Cache::STATS_UPTIME => $stats['uptime'], Cache::STATS_MEMORY_USAGE => $stats['bytes'], Cache::STATS_MEMORY_AVAILABLE => $stats['limit_maxbytes']];
119	}
120	/**
121	* Validate the cache id
122	*
123	* @see https://github.com/memcached/memcached/blob/1.5.12/doc/protocol.txt#L41-L49
124	*
125	* @param string $id
126	*
127	* @return void
128	*
129	* @throws InvalidCacheId
130	*/
131	private function validateCacheId($id)
132	{
133	if (strlen($id) > self::CACHE_ID_MAX_LENGTH) {
134	throw InvalidCacheId::exceedsMaxLength($id, self::CACHE_ID_MAX_LENGTH);
135	}
136	if (strpos($id, ' ') !== \false) {
137	throw InvalidCacheId::containsUnauthorizedCharacter($id, ' ');
138	}
139	if (preg_match('/[\\t\\r\\n]/', $id) === 1) {
140	throw InvalidCacheId::containsControlCharacter($id);
141	}
142	}
143	}
144