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<?php |
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namespace Suven\FlintRedis; |
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abstract class FlintRedisCacheFactory |
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{ |
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const STRATEGY_REDIS = 1; |
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const STRATEGY_FLINTSTONE = 2; |
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private static $cachedInstances = []; |
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private static function getKey($realm, $strategy) |
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{ |
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return "${realm}.${strategy}"; |
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} |
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private static function getFullKey($key, $options) |
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{ |
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$optionsKey = md5(json_encode($options)); |
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return "${key}.${optionsKey}"; |
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} |
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/** |
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* Retrieves a new or previously created cache-instance for the provided |
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* parameters. |
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* |
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* If you previously created an instance for a collection 'foo' with a |
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* strategy [and options] and are later 'creating' in instance but only |
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* provide the realm 'foo', you will retreive your previously created instance. |
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* |
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* That way you only have to provide the strategy and options once per $realm. |
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* |
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* @param string $realm Your collections name |
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* @param number $strategy Either FlintRedisCacheFactory::STRATEGY_REDIS |
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* or FlintRedisCacheFactory:: STRATEGY_FLINTSTONE |
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* @param array $options Options you want to pass to predis/flintstone |
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* @return FlintRedisCache |
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*/ |
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public static function create($realm, $strategy = false, $options = false) |
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{ |
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$key = self::getKey($realm, $strategy); |
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$fullKey = self::getFullKey($key, $options); |
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if ($strategy && $options && isset(self::$cachedInstances[$fullKey])) { |
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return self::$cachedInstances[$fullKey]; |
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} |
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View Code Duplication |
if ($strategy && !$options && isset(self::$cachedInstances[$key])) { |
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return self::$cachedInstances[$key]; |
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} |
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View Code Duplication |
if (!$strategy && !$options && isset(self::$cachedInstances[$realm])) { |
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return self::$cachedInstances[$realm]; |
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} |
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// No instance available so far... Lets create one with default values |
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$strategy = $strategy ? $strategy : self::STRATEGY_REDIS; |
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$options = $options ? $options : []; |
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$key = self::getKey($realm, $strategy); |
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$fullKey = self::getFullKey($key, $options); |
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$instance = self::newCacheInstance($strategy, $realm, $options); |
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self::$cachedInstances[$fullKey] = &$instance; |
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self::$cachedInstances[$key] = &$instance; |
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self::$cachedInstances[$realm] = &$instance; |
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return $instance; |
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} |
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private static function newCacheInstance($strategy, $realm, $options) |
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{ |
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if ($strategy === self::STRATEGY_REDIS) { |
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return new FlintRedisCacheRedis($realm, $options); |
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} |
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if ($strategy === self::STRATEGY_FLINTSTONE) { |
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return new FlintRedisCacheFlintstone($realm, $options); |
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} |
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} |
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} |
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Suven /
flintRedis
