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<?php |
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namespace Charcoal\App\Config; |
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use InvalidArgumentException; |
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// From 'charcoal-config' |
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use Charcoal\Config\AbstractConfig; |
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/** |
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* Cache Configuration |
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*/ |
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class CacheConfig extends AbstractConfig |
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{ |
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/** |
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* Human-readable intervals in seconds. |
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*/ |
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const HOUR_IN_SECONDS = 3600; |
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const DAY_IN_SECONDS = 86400; |
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const WEEK_IN_SECONDS = 604800; |
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/** |
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* Cache driver(s). |
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* |
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* @var array |
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*/ |
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private $types = [ 'memory' ]; |
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/** |
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* Time-to-live in seconds. |
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* |
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* @var integer |
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*/ |
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private $defaultTtl = self::WEEK_IN_SECONDS; |
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/** |
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* Cache namespace. |
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* |
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* @var string |
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*/ |
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private $prefix = 'charcoal'; |
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/** |
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* @return array |
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*/ |
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public function defaults() |
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{ |
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return [ |
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'types' => [ 'memory' ], |
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'default_ttl' => self::WEEK_IN_SECONDS, |
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'prefix' => 'charcoal' |
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]; |
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} |
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/** |
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* Set the types (drivers) of cache. |
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* |
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* The first cache actually available on the system will be the one used for caching. |
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* |
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* @param string[] $types The types of cache to try using, in order of priority. |
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* @return CacheConfig Chainable |
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*/ |
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public function setTypes(array $types) |
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{ |
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$this->types = []; |
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foreach ($types as $type) { |
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$this->addType($type); |
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} |
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return $this; |
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} |
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/** |
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* Get the valid types (drivers). |
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* |
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* @return array |
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*/ |
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public function validTypes() |
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{ |
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return [ |
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'apc', |
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'file', |
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'db', |
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'memcache', |
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'memory', |
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'noop', |
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'redis' |
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]; |
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} |
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/** |
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* @param string $type The cache type. |
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* @throws InvalidArgumentException If the type is not a string. |
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* @return CacheConfig Chainable |
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*/ |
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public function addType($type) |
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{ |
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if (!in_array($type, $this->validTypes())) { |
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throw new InvalidArgumentException( |
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sprintf('Invalid cache type: "%s"', $type) |
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); |
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} |
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$this->types[] = $type; |
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return $this; |
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} |
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/** |
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* @return array |
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*/ |
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public function types() |
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{ |
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return $this->types; |
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} |
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/** |
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* @param integer $ttl The time-to-live, in seconds. |
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* @throws InvalidArgumentException If the TTL argument is not numeric. |
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* @return CacheConfig Chainable |
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*/ |
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public function setDefaultTtl($ttl) |
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{ |
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if (!is_numeric($ttl)) { |
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throw new InvalidArgumentException( |
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'TTL must be an integer (seconds).' |
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); |
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} |
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$this->defaultTtl = (int)$ttl; |
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return $this; |
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} |
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/** |
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* @return integer |
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*/ |
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public function defaultTtl() |
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{ |
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return $this->defaultTtl; |
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} |
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/** |
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* @param string $prefix The cache prefix (or namespace). |
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* @throws InvalidArgumentException If the prefix is not a string. |
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* @return CacheConfig Chainable |
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*/ |
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public function setPrefix($prefix) |
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{ |
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if (!is_string($prefix)) { |
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throw new InvalidArgumentException( |
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'Prefix must be a string.' |
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); |
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} |
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$this->prefix = $prefix; |
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return $this; |
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} |
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/** |
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* @return string |
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*/ |
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public function prefix() |
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{ |
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return $this->prefix; |
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} |
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} |
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