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<?php |
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/* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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* This software consists of voluntary contributions made by many individuals |
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* and is licensed under the MIT license. For more information, see |
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* <http://www.doctrine-project.org>. |
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*/ |
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namespace Doctrine\Common\Cache; |
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use Redis; |
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/** |
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* Redis cache provider. |
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* |
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* @link www.doctrine-project.org |
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* @since 2.2 |
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* @author Osman Ungur <[email protected]> |
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*/ |
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class RedisCache extends CacheProvider |
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{ |
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/** |
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* @var Redis|null |
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*/ |
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private $redis; |
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/** |
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* Sets the redis instance to use. |
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* |
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* @param Redis $redis |
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* |
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* @return void |
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*/ |
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public function setRedis(Redis $redis) |
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{ |
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$redis->setOption(Redis::OPT_SERIALIZER, $this->getSerializerValue()); |
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$this->redis = $redis; |
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} |
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/** |
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* Gets the redis instance used by the cache. |
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* |
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* @return Redis|null |
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*/ |
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public function getRedis() |
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{ |
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return $this->redis; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function doFetch($id) |
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{ |
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return $this->redis->get($id); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function doFetchMultiple(array $keys) |
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{ |
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$fetchedItems = array_combine($keys, $this->redis->mget($keys)); |
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// Redis mget returns false for keys that do not exist. So we need to filter those out unless it's the real data. |
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$foundItems = []; |
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foreach ($fetchedItems as $key => $value) { |
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if (false !== $value || $this->redis->exists($key)) { |
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$foundItems[$key] = $value; |
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} |
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} |
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return $foundItems; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function doSaveMultiple(array $keysAndValues, $lifetime = 0) |
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{ |
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if ($lifetime) { |
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$success = true; |
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// Keys have lifetime, use SETEX for each of them |
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foreach ($keysAndValues as $key => $value) { |
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if (!$this->redis->setex($key, $lifetime, $value)) { |
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$success = false; |
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} |
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} |
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return $success; |
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} |
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// No lifetime, use MSET |
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return (bool) $this->redis->mset($keysAndValues); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function doContains($id) |
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{ |
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return $this->redis->exists($id); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function doSave($id, $data, $lifeTime = 0) |
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{ |
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if ($lifeTime > 0) { |
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return $this->redis->setex($id, $lifeTime, $data); |
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} |
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return $this->redis->set($id, $data); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function doDelete($id) |
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{ |
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return $this->redis->delete($id) >= 0; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function doDeleteMultiple(array $keys) |
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{ |
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return $this->redis->delete($keys) >= 0; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function doFlush() |
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{ |
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return $this->redis->flushDB(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function doGetStats() |
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{ |
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$info = $this->redis->info(); |
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return [ |
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Cache::STATS_HITS => $info['keyspace_hits'], |
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Cache::STATS_MISSES => $info['keyspace_misses'], |
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Cache::STATS_UPTIME => $info['uptime_in_seconds'], |
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Cache::STATS_MEMORY_USAGE => $info['used_memory'], |
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Cache::STATS_MEMORY_AVAILABLE => false |
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]; |
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} |
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/** |
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* Returns the serializer constant to use. If Redis is compiled with |
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* igbinary support, that is used. Otherwise the default PHP serializer is |
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* used. |
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* |
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* @return integer One of the Redis::SERIALIZER_* constants |
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*/ |
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protected function getSerializerValue() |
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{ |
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if (defined('HHVM_VERSION')) { |
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return Redis::SERIALIZER_PHP; |
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} |
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if (defined('Redis::SERIALIZER_IGBINARY') && extension_loaded('igbinary')) { |
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return Redis::SERIALIZER_IGBINARY; |
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} |
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return Redis::SERIALIZER_PHP; |
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} |
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} |
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doctrine /
cache
