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 /**
23 * Array cache driver.
24 *
25 * @link www.doctrine-project.org
26 * @since 2.0
27 * @author Benjamin Eberlei <kontakt@beberlei.de>
28 * @author Guilherme Blanco <guilhermeblanco@hotmail.com>
29 * @author Jonathan Wage <jonwage@gmail.com>
30 * @author Roman Borschel <roman@code-factory.org>
31 * @author David Abdemoulaie <dave@hobodave.com>
32 */
33 class ArrayCache extends CacheProvider
34 {
35 /**
36 * @var array[] $data each element being a tuple of [$data, $expiration], where the expiration is int|bool
37 */
38 private $data = [];
39  
40 /**
41 * @var int
42 */
43 private $hitsCount = 0;
44  
45 /**
46 * @var int
47 */
48 private $missesCount = 0;
49  
50 /**
51 * @var int
52 */
53 private $upTime;
54  
55 /**
56 * {@inheritdoc}
57 */
58 public function __construct()
59 {
60 $this->upTime = time();
61 }
62  
63 /**
64 * {@inheritdoc}
65 */
66 protected function doFetch($id)
67 {
68 if (! $this->doContains($id)) {
69 $this->missesCount += 1;
70  
71 return false;
72 }
73  
74 $this->hitsCount += 1;
75  
76 return $this->data[$id][0];
77 }
78  
79 /**
80 * {@inheritdoc}
81 */
82 protected function doContains($id)
83 {
84 if (! isset($this->data[$id])) {
85 return false;
86 }
87  
88 $expiration = $this->data[$id][1];
89  
90 if ($expiration && $expiration < time()) {
91 $this->doDelete($id);
92  
93 return false;
94 }
95  
96 return true;
97 }
98  
99 /**
100 * {@inheritdoc}
101 */
102 protected function doSave($id, $data, $lifeTime = 0)
103 {
104 $this->data[$id] = [$data, $lifeTime ? time() + $lifeTime : false];
105  
106 return true;
107 }
108  
109 /**
110 * {@inheritdoc}
111 */
112 protected function doDelete($id)
113 {
114 unset($this->data[$id]);
115  
116 return true;
117 }
118  
119 /**
120 * {@inheritdoc}
121 */
122 protected function doFlush()
123 {
124 $this->data = [];
125  
126 return true;
127 }
128  
129 /**
130 * {@inheritdoc}
131 */
132 protected function doGetStats()
133 {
134 return [
135 Cache::STATS_HITS => $this->hitsCount,
136 Cache::STATS_MISSES => $this->missesCount,
137 Cache::STATS_UPTIME => $this->upTime,
138 Cache::STATS_MEMORY_USAGE => null,
139 Cache::STATS_MEMORY_AVAILABLE => null,
140 ];
141 }
142 }