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<?php |
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namespace Alpha\Util\Cache; |
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use Alpha\Util\Logging\Logger; |
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use Alpha\Util\Config\ConfigProvider; |
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/** |
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* An implementation of the CacheProviderInterface interface that uses the |
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* file system (app.file.store.dir) as the target store. |
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* |
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* @since 3.0.0 |
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* |
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* @author John Collins <[email protected]> |
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* @license http://www.opensource.org/licenses/bsd-license.php The BSD License |
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* @copyright Copyright (c) 2018, John Collins (founder of Alpha Framework). |
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* All rights reserved. |
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* |
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* <pre> |
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* Redistribution and use in source and binary forms, with or |
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* without modification, are permitted provided that the |
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* following conditions are met: |
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* |
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* * Redistributions of source code must retain the above |
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* copyright notice, this list of conditions and the |
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* following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the |
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* following disclaimer in the documentation and/or other |
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* materials provided with the distribution. |
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* * Neither the name of the Alpha Framework nor the names |
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* of its contributors may be used to endorse or promote |
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* products derived from this software without specific |
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* prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* </pre> |
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*/ |
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class CacheProviderFile implements CacheProviderInterface |
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{ |
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/** |
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* Trace logger. |
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* |
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* @var \Alpha\Util\Logging\Logger |
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* |
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* @since 3.0.0 |
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*/ |
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private static $logger = null; |
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/** |
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* Constructor. |
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* |
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* @since 3.0.0 |
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*/ |
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public function __construct() |
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{ |
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self::$logger = new Logger('CacheProviderFile'); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function get($key) |
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{ |
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self::$logger->debug('>>get(key=['.$key.'])'); |
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self::$logger->debug('Getting value for key ['.$key.']'); |
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$config = ConfigProvider::getInstance(); |
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$filepath = $config->get('app.file.store.dir').'/cache/files/'.$key; |
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if (file_exists($filepath)) { |
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return unserialize(file_get_contents($filepath)); |
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} else { |
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return false; |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function set($key, $value, $expiry = 0) |
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{ |
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self::$logger->debug('Setting value for key ['.$key.']'); |
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$config = ConfigProvider::getInstance(); |
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$filepath = $config->get('app.file.store.dir').'/cache/files/'.$key; |
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file_put_contents($filepath, serialize($value)); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function delete($key) |
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{ |
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self::$logger->debug('Removing value for key ['.$key.']'); |
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$config = ConfigProvider::getInstance(); |
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$filepath = $config->get('app.file.store.dir').'/cache/files/'.$key; |
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unlink($filepath); |
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} |
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} |
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