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<?php |
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declare(strict_types=1); |
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/** |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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* THE SOFTWARE. |
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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. |
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* |
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* Copyright (c) 2014-2019 Yuuki Takezawa |
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* |
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*/ |
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namespace Ytake\LaravelSmarty\Cache; |
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use Memcached as MemcachedExtension; |
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/** |
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* Class Memcached |
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* |
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* @author yuuki.takezawa<[email protected]> |
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* @license http://opensource.org/licenses/MIT MIT |
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*/ |
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class Memcached extends KeyValueStorage |
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{ |
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/** @var MemcachedExtension */ |
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protected $memcached; |
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/** |
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* @param MemcachedExtension $memcached |
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*/ |
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public function __construct(MemcachedExtension $memcached, array $servers) |
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{ |
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$this->memcached = $this->connection($memcached, $servers); |
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} |
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/** |
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* @param MemcachedExtension $memcached |
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* @param array $servers |
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* |
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* @return MemcachedExtension |
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*/ |
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protected function connection(MemcachedExtension $memcached, array $servers) |
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{ |
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foreach ($servers as $server) { |
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$memcached->addServer($server['host'], $server['port'], $server['weight']); |
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} |
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return $memcached; |
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} |
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/** |
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* Read values for a set of keys from cache |
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* |
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* @param array $keys list of keys to fetch |
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* |
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* @return array list of values with the given keys used as indexes |
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*/ |
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protected function read(array $keys) |
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{ |
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$map = $lookup = []; |
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list($map, $lookup) = $this->eachKeys($keys, $map, $lookup); |
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$result = []; |
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$memcachedResult = $this->memcached->getMulti($map); |
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foreach ($memcachedResult as $k => $v) { |
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$result[$lookup[$k]] = $v; |
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} |
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return $result; |
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} |
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/** |
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* Save values for a set of keys to cache |
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* |
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* @param array $keys list of values to save |
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* @param int $expire expiration time |
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* |
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* @return bool true on success, false on failure |
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*/ |
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protected function write(array $keys, $expire = null) |
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{ |
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foreach ($keys as $k => $v) { |
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$k = sha1($k); |
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$this->memcached->set($k, $v, $expire); |
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} |
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return true; |
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} |
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/** |
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* Remove values from cache |
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* |
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* @param array $keys list of keys to delete |
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* |
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* @return bool true on success, false on failure |
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*/ |
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protected function delete(array $keys) |
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{ |
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foreach ($keys as $k) { |
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$k = sha1($k); |
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$this->memcached->delete($k); |
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} |
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return true; |
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} |
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/** |
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* Remove *all* values from cache |
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* |
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* @return bool true on success, false on failure |
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*/ |
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protected function purge() |
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{ |
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return $this->memcached->flush(); |
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} |
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} |
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