scratch – Blame information for rev 115

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115 office 1 <?php
2 /*
3 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
4 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
5 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
6 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
7 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
8 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
9 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
10 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
11 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
12 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
13 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
14 *
15 * This software consists of voluntary contributions made by many individuals
16 * and is licensed under the MIT license. For more information, see
17 * <http://www.doctrine-project.org>.
18 */
19  
20 namespace Doctrine\Common\Cache;
21  
22 use \Memcached;
23  
24 /**
25 * Memcached cache provider.
26 *
27 * @link www.doctrine-project.org
28 * @since 2.2
29 * @author Benjamin Eberlei <kontakt@beberlei.de>
30 * @author Guilherme Blanco <guilhermeblanco@hotmail.com>
31 * @author Jonathan Wage <jonwage@gmail.com>
32 * @author Roman Borschel <roman@code-factory.org>
33 * @author David Abdemoulaie <dave@hobodave.com>
34 */
35 class MemcachedCache extends CacheProvider
36 {
37 /**
38 * @var Memcached|null
39 */
40 private $memcached;
41  
42 /**
43 * Sets the memcache instance to use.
44 *
45 * @param Memcached $memcached
46 *
47 * @return void
48 */
49 public function setMemcached(Memcached $memcached)
50 {
51 $this->memcached = $memcached;
52 }
53  
54 /**
55 * Gets the memcached instance used by the cache.
56 *
57 * @return Memcached|null
58 */
59 public function getMemcached()
60 {
61 return $this->memcached;
62 }
63  
64 /**
65 * {@inheritdoc}
66 */
67 protected function doFetch($id)
68 {
69 return $this->memcached->get($id);
70 }
71  
72 /**
73 * {@inheritdoc}
74 */
75 protected function doFetchMultiple(array $keys)
76 {
77 return $this->memcached->getMulti($keys) ?: [];
78 }
79  
80 /**
81 * {@inheritdoc}
82 */
83 protected function doSaveMultiple(array $keysAndValues, $lifetime = 0)
84 {
85 if ($lifetime > 30 * 24 * 3600) {
86 $lifetime = time() + $lifetime;
87 }
88  
89 return $this->memcached->setMulti($keysAndValues, $lifetime);
90 }
91  
92 /**
93 * {@inheritdoc}
94 */
95 protected function doContains($id)
96 {
97 return false !== $this->memcached->get($id)
98 || $this->memcached->getResultCode() !== Memcached::RES_NOTFOUND;
99 }
100  
101 /**
102 * {@inheritdoc}
103 */
104 protected function doSave($id, $data, $lifeTime = 0)
105 {
106 if ($lifeTime > 30 * 24 * 3600) {
107 $lifeTime = time() + $lifeTime;
108 }
109 return $this->memcached->set($id, $data, (int) $lifeTime);
110 }
111  
112 /**
113 * {@inheritdoc}
114 */
115 protected function doDelete($id)
116 {
117 return $this->memcached->delete($id)
118 || $this->memcached->getResultCode() === Memcached::RES_NOTFOUND;
119 }
120  
121 /**
122 * {@inheritdoc}
123 */
124 protected function doFlush()
125 {
126 return $this->memcached->flush();
127 }
128  
129 /**
130 * {@inheritdoc}
131 */
132 protected function doGetStats()
133 {
134 $stats = $this->memcached->getStats();
135 $servers = $this->memcached->getServerList();
136 $key = $servers[0]['host'] . ':' . $servers[0]['port'];
137 $stats = $stats[$key];
138 return array(
139 Cache::STATS_HITS => $stats['get_hits'],
140 Cache::STATS_MISSES => $stats['get_misses'],
141 Cache::STATS_UPTIME => $stats['uptime'],
142 Cache::STATS_MEMORY_USAGE => $stats['bytes'],
143 Cache::STATS_MEMORY_AVAILABLE => $stats['limit_maxbytes'],
144 );
145 }
146 }