117 lines
2.1 KiB
PHP
117 lines
2.1 KiB
PHP
<?php
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/**
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* Ion
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*
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* Building blocks for web development
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*
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* @package Ion
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* @author Timothy J. Warren
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* @copyright Copyright (c) 2015 - 2016
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* @license MIT
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*/
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namespace Aviat\Ion\Cache\Driver;
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use Aviat\Ion\ConfigInterface;
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use Predis\Client;
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/**
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* Cache Driver for a Redis backend
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*/
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class RedisDriver implements DriverInterface {
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use DriverTrait;
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/**
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* THe Predis library instance
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*
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* @var Client
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*/
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protected $redis;
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/**
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* Create the Redis cache driver
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*
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* @param ConfigInterface $config The configuration management class
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*/
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public function __construct(ConfigInterface $config)
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{
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$redisConfig = $config->get('redis');
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// If you don't have a redis password set, and you attempt to send an
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// empty string, Redis will think you want to authenticate with a password
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// that is an empty string. To work around this, empty string passwords
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// are considered to be a lack of a password
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if (array_key_exists('password', $redisConfig) && $redisConfig['password'] === '')
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{
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unset($redisConfig['password']);
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}
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$this->redis = new Client($redisConfig);
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}
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/**
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* Disconnect from redis
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*/
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public function __destruct()
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{
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$this->redis = null;
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}
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/**
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* Retrieve a value from the cache backend
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*
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* @param string $rawKey
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* @return mixed
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*/
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public function get($rawKey)
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{
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$key = $this->prefix($rawKey);
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$serializedData = $this->redis->get($key);
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return $this->unserialize($serializedData);
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}
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/**
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* Set a cached value
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*
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* @param string $rawKey
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* @param mixed $value
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* @return DriverInterface
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*/
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public function set($rawKey, $value)
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{
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$key = $this->prefix($rawKey);
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$serializedData = $this->serialize($value);
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$this->redis->set($key, $serializedData);
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return $this;
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}
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/**
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* Invalidate a cached value
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*
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* @param string $rawKey
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* @return DriverInterface
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*/
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public function invalidate($rawKey)
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{
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$key = $this->prefix($rawKey);
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$this->redis->del($key);
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return $this;
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}
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/**
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* Clear the contents of the cache
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*
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* @return void
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*/
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public function invalidateAll()
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{
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$this->redis->flushdb();
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}
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}
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// End of RedisDriver.php
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