diff options
| -rw-r--r-- | application/controllers/test_redis.php | 43 | ||||
| -rw-r--r-- | system/libraries/Cache/Cache.php | 2 | ||||
| -rw-r--r-- | system/libraries/Cache/drivers/Cache_redis.php | 217 |
3 files changed, 261 insertions, 1 deletions
diff --git a/application/controllers/test_redis.php b/application/controllers/test_redis.php new file mode 100644 index 000000000..b84c652d7 --- /dev/null +++ b/application/controllers/test_redis.php @@ -0,0 +1,43 @@ +<?php +class Test_redis extends CI_Controller +{ + + function __construct() + { + parent::__construct(); + + $this->load->library('unit_test'); + + $this->load->driver('cache', array('adapter' => 'redis')); + } + + function index() + { + $this->unit->run($this->cache->redis->is_supported(), 'is_true'); + + $this->unit->run($this->cache->redis->save('foo', 'bar'), 'is_true'); + + $this->unit->run($this->cache->redis->get('foo'), 'bar'); + + $this->unit->run($this->cache->redis->delete('foo'), 'is_true'); + + $this->unit->run($this->cache->redis->save('foo', 'bar', 1800), 'is_true'); + + $this->unit->run( + $this->cache->redis->get_metadata('foo'), + array( + 'data' => 'bar', + 'expire' => time() + 1800 + ) + ); + + $this->unit->run($this->cache->redis->clean(), 'is_true'); + + $this->unit->run($this->cache->redis->get('foo'), 'is_false'); + + $this->unit->run($this->cache->redis->cache_info(), 'is_array'); + + echo $this->unit->report(); + } + +}
\ No newline at end of file diff --git a/system/libraries/Cache/Cache.php b/system/libraries/Cache/Cache.php index 2e78a6660..25555506c 100644 --- a/system/libraries/Cache/Cache.php +++ b/system/libraries/Cache/Cache.php @@ -39,7 +39,7 @@ class CI_Cache extends CI_Driver_Library { protected $valid_drivers = array( - 'cache_apc', 'cache_file', 'cache_memcached', 'cache_dummy' + 'cache_apc', 'cache_file', 'cache_memcached', 'cache_redis', 'cache_dummy' ); protected $_cache_path = NULL; // Path of cache files (if file-based cache) diff --git a/system/libraries/Cache/drivers/Cache_redis.php b/system/libraries/Cache/drivers/Cache_redis.php new file mode 100644 index 000000000..9eb7a8d4e --- /dev/null +++ b/system/libraries/Cache/drivers/Cache_redis.php @@ -0,0 +1,217 @@ +<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +/** + * CodeIgniter + * + * An open source application development framework for PHP 5.1.6 or newer + * + * @package CodeIgniter + * @author ExpressionEngine Dev Team + * @copyright Copyright (c) 2006 - 2011 EllisLab, Inc. + * @license http://codeigniter.com/user_guide/license.html + * @link http://codeigniter.com + * @since Version 2.0 + * @filesource + */ + +// ------------------------------------------------------------------------ + +/** + * CodeIgniter Redis Caching Class + * + * @package CodeIgniter + * @subpackage Libraries + * @category Core + * @author Anton Lindqvist <anton@qvister.se> + * @link + */ +class CI_Cache_redis extends CI_Driver +{ + + /** + * Default config + * + * @access private + * @static + * @var array + */ + private static $_default_config = array( + 'host' => '127.0.0.1', + 'port' => 6379, + 'timeout' => 0 + ); + + /** + * Redis connection + * + * @access private + * @var Redis + */ + private $_redis; + + /** + * Class destructor + * + * Closes the connection to Redis if present. + * + * @access public + * @return void + */ + public function __destruct() + { + if ($this->_redis) + { + $this->_redis->close(); + } + } + + /** + * Get cache + * + * @access public + * @param string $key Cache key identifier + * @return mixed + */ + public function get($key) + { + return $this->_redis->get($key); + } + + /** + * Save cache + * + * @access public + * @param string $key Cache key identifier + * @param mixed $value Data to save + * @param integer $ttl Time to live + * @return boolean + */ + public function save($key, $value, $ttl = NULL) + { + return ($ttl) + ? $this->_redis->setex($key, $ttl, $value) + : $this->_redis->set($key, $value); + } + + /** + * Delete from cache + * + * @access public + * @param string $key Cache key + * @return boolean + */ + public function delete($key) + { + return ($this->_redis->delete($key) === 1); + } + + /** + * Clean cache + * + * @access public + * @return boolean + * @see Redis::flushDB() + */ + public function clean() + { + return $this->_redis->flushDB(); + } + + /** + * Get cache driver info + * + * @access public + * @param string $type Not supported in Redis. Only included in order to offer a + * consistent cache API. + * @return array + * @see Redis::info() + */ + public function cache_info($type = NULL) + { + return $this->_redis->info(); + } + + /** + * Get cache metadata + * + * @access public + * @param string $key Cache key + * @return array + */ + public function get_metadata($key) + { + $value = $this->get($key); + + if ($value) + { + return array( + 'expire' => time() + $this->_redis->ttl($key), + 'data' => $value + ); + } + } + + /** + * Check if Redis driver is supported + * + * @access public + * @return boolean + */ + public function is_supported() + { + if (extension_loaded('redis')) + { + $this->_setup_redis(); + + return TRUE; + } + else + { + log_message( + 'error', + 'The Redis extension must be loaded to use Redis cache.' + ); + + return FALSE; + } + + } + + /** + * Setup Redis config and connection + * + * Loads Redis config file if present. Will halt execution if a Redis connection + * can't be established. + * + * @access private + * @return void + * @see Redis::connect() + */ + private function _setup_redis() + { + $config = array(); + $CI =& get_instance(); + + if ($CI->config->load('redis', TRUE, TRUE)) + { + $config += $CI->config->item('redis'); + } + + $config = array_merge(self::$_default_config, $config); + + $this->_redis = new Redis(); + + try + { + $this->_redis->connect($config['host'], $config['port'], $config['timeout']); + } + catch (RedisException $e) + { + show_error('Redis connection refused. ' . $e->getMessage()); + } + } + +} +// End Class + +/* End of file Cache_redis.php */ +/* Location: ./system/libraries/Cache/drivers/Cache_redis.php */
\ No newline at end of file |