/usr/share/php/Doctrine/Common/Cache/CacheProvider.php is in php-doctrine-cache 1.3.1-1+deb8u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 | <?php
/*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the MIT license. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace Doctrine\Common\Cache;
/**
* Base class for cache provider implementations.
*
* @since 2.2
* @author Benjamin Eberlei <kontakt@beberlei.de>
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
* @author Jonathan Wage <jonwage@gmail.com>
* @author Roman Borschel <roman@code-factory.org>
* @author Fabio B. Silva <fabio.bat.silva@gmail.com>
*/
abstract class CacheProvider implements Cache
{
const DOCTRINE_NAMESPACE_CACHEKEY = 'DoctrineNamespaceCacheKey[%s]';
/**
* The namespace to prefix all cache ids with.
*
* @var string
*/
private $namespace = '';
/**
* The namespace version.
*
* @var integer|null
*/
private $namespaceVersion;
/**
* Sets the namespace to prefix all cache ids with.
*
* @param string $namespace
*
* @return void
*/
public function setNamespace($namespace)
{
$this->namespace = (string) $namespace;
$this->namespaceVersion = null;
}
/**
* Retrieves the namespace that prefixes all cache ids.
*
* @return string
*/
public function getNamespace()
{
return $this->namespace;
}
/**
* {@inheritdoc}
*/
public function fetch($id)
{
return $this->doFetch($this->getNamespacedId($id));
}
/**
* {@inheritdoc}
*/
public function contains($id)
{
return $this->doContains($this->getNamespacedId($id));
}
/**
* {@inheritdoc}
*/
public function save($id, $data, $lifeTime = 0)
{
return $this->doSave($this->getNamespacedId($id), $data, $lifeTime);
}
/**
* {@inheritdoc}
*/
public function delete($id)
{
return $this->doDelete($this->getNamespacedId($id));
}
/**
* {@inheritdoc}
*/
public function getStats()
{
return $this->doGetStats();
}
/**
* Flushes all cache entries.
*
* @return boolean TRUE if the cache entries were successfully flushed, FALSE otherwise.
*/
public function flushAll()
{
return $this->doFlush();
}
/**
* Deletes all cache entries.
*
* @return boolean TRUE if the cache entries were successfully deleted, FALSE otherwise.
*/
public function deleteAll()
{
$namespaceCacheKey = $this->getNamespaceCacheKey();
$namespaceVersion = $this->getNamespaceVersion() + 1;
$this->namespaceVersion = $namespaceVersion;
return $this->doSave($namespaceCacheKey, $namespaceVersion);
}
/**
* Prefixes the passed id with the configured namespace value.
*
* @param string $id The id to namespace.
*
* @return string The namespaced id.
*/
private function getNamespacedId($id)
{
$namespaceVersion = $this->getNamespaceVersion();
return sprintf('%s[%s][%s]', $this->namespace, $id, $namespaceVersion);
}
/**
* Returns the namespace cache key.
*
* @return string
*/
private function getNamespaceCacheKey()
{
return sprintf(self::DOCTRINE_NAMESPACE_CACHEKEY, $this->namespace);
}
/**
* Returns the namespace version.
*
* @return integer
*/
private function getNamespaceVersion()
{
if (null !== $this->namespaceVersion) {
return $this->namespaceVersion;
}
$namespaceCacheKey = $this->getNamespaceCacheKey();
$namespaceVersion = $this->doFetch($namespaceCacheKey);
if (false === $namespaceVersion) {
$namespaceVersion = 1;
$this->doSave($namespaceCacheKey, $namespaceVersion);
}
$this->namespaceVersion = $namespaceVersion;
return $this->namespaceVersion;
}
/**
* Fetches an entry from the cache.
*
* @param string $id The id of the cache entry to fetch.
*
* @return string|boolean The cached data or FALSE, if no cache entry exists for the given id.
*/
abstract protected function doFetch($id);
/**
* Tests if an entry exists in the cache.
*
* @param string $id The cache id of the entry to check for.
*
* @return boolean TRUE if a cache entry exists for the given cache id, FALSE otherwise.
*/
abstract protected function doContains($id);
/**
* Puts data into the cache.
*
* @param string $id The cache id.
* @param string $data The cache entry/data.
* @param int $lifeTime The lifetime. If != 0, sets a specific lifetime for this
* cache entry (0 => infinite lifeTime).
*
* @return boolean TRUE if the entry was successfully stored in the cache, FALSE otherwise.
*/
abstract protected function doSave($id, $data, $lifeTime = 0);
/**
* Deletes a cache entry.
*
* @param string $id The cache id.
*
* @return boolean TRUE if the cache entry was successfully deleted, FALSE otherwise.
*/
abstract protected function doDelete($id);
/**
* Flushes all cache entries.
*
* @return boolean TRUE if the cache entry was successfully deleted, FALSE otherwise.
*/
abstract protected function doFlush();
/**
* Retrieves cached information from the data store.
*
* @since 2.2
*
* @return array|null An associative array with server's statistics if available, NULL otherwise.
*/
abstract protected function doGetStats();
}
|