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<?php |
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namespace BehEh\Flaps\Storage; |
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use BehEh\Flaps\StorageInterface; |
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use Predis\Client; |
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/** |
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* Provides a storage implementation using Predis\Client as backend. |
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* |
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* Example: |
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* <pre><code> |
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* <?php |
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* use Predis\Client; |
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* use BehEh\Flaps\Storage\PredisStorage; |
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* |
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* $storage = new PredisStorage(new Client('tcp://10.0.0.1:6379')); |
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* </code></pre> |
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* |
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* @since 0.1 |
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* @author Benedict Etzel <[email protected]> |
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*/ |
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class PredisStorage implements StorageInterface |
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{ |
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/** |
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* @var Client |
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*/ |
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protected $client; |
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/** |
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* Sets up the class using the redis instance connected to the predis $client. |
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* @param Predis\Client $client |
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* @param array $options an array of options |
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* @see BehEh\Flaps\PredisStorage::configure |
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*/ |
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public function __construct(Client $client, array $options = array()) |
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{ |
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$this->client = $client; |
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$this->configure($options); |
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} |
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/** |
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* @var array |
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*/ |
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protected $options; |
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/** |
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* Configures this class with some options: |
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* <table> |
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* <tr><th>prefix</th><td>the prefix to apply to all unique keys</td></tr> |
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* </table> |
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* @param array $options the key value pairs of options for this class |
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*/ |
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public function configure(array $options) |
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{ |
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$this->options = array_merge(array( |
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'prefix' => 'flaps:' |
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), $options); |
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} |
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private function prefixKey($key) |
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{ |
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return $this->options['prefix'].$key; |
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} |
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private function prefixTimestamp($timestamp) |
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{ |
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return $this->prefixKey($timestamp.':timestamp'); |
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} |
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public function setValue($key, $value) |
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{ |
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$this->client->set($this->prefixKey($key), intval($value)); |
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} |
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public function incrementValue($key) |
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{ |
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return intval($this->client->incr($this->prefixKey($key))); |
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} |
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public function getValue($key) |
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{ |
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return intval($this->client->get($this->prefixKey($key))); |
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} |
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public function setTimestamp($key, $timestamp) |
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{ |
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$this->client->set($this->prefixTimestamp($key), floatval($timestamp)); |
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} |
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public function getTimestamp($key) |
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{ |
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return floatval($this->client->get($this->prefixTimestamp($key))); |
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} |
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public function expire($key) |
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{ |
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$this->client->del($this->prefixTimestamp($key)); |
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return (int) $this->client->del($this->prefixKey($key)) === 1; |
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} |
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public function expireIn($key, $seconds) |
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{ |
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$redisTime = $this->client->time(); |
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$at = ceil($redisTime[0] + $seconds); |
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$this->client->expireat($this->prefixTimestamp($key), $at); |
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return (int) $this->client->expireat($this->prefixKey($key), $at) === 1; |
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} |
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} |
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beheh /
flaps
