DeviceDetectorCache.php
96 lines
| 1 | <?php |
| 2 | /** |
| 3 | * Piwik - free/libre analytics platform |
| 4 | * |
| 5 | * @link https://matomo.org |
| 6 | * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later |
| 7 | * |
| 8 | */ |
| 9 | namespace Piwik\DeviceDetector; |
| 10 | |
| 11 | use Piwik\Cache as PiwikCache; |
| 12 | |
| 13 | /** |
| 14 | * Caching class used for DeviceDetector caching |
| 15 | * |
| 16 | * Combines Piwik\CacheFile with an additional caching in static property |
| 17 | * |
| 18 | * Static caching speeds up multiple detections in one request, which is the case when sending bulk requests |
| 19 | */ |
| 20 | class DeviceDetectorCache implements \DeviceDetector\Cache\Cache |
| 21 | { |
| 22 | protected static $staticCache = array(); |
| 23 | |
| 24 | private $cache; |
| 25 | private $ttl; |
| 26 | |
| 27 | public function __construct($ttl = 300) |
| 28 | { |
| 29 | $this->ttl = (int) $ttl; |
| 30 | $this->cache = PiwikCache::getLazyCache(); |
| 31 | } |
| 32 | |
| 33 | /** |
| 34 | * Function to fetch a cache entry |
| 35 | * |
| 36 | * @param string $id The cache entry ID |
| 37 | * @return array|bool False on error, or array the cache content |
| 38 | */ |
| 39 | public function fetch($id) |
| 40 | { |
| 41 | if (empty($id)) { |
| 42 | return false; |
| 43 | } |
| 44 | |
| 45 | if (array_key_exists($id, self::$staticCache)) { |
| 46 | return self::$staticCache[$id]; |
| 47 | } |
| 48 | |
| 49 | if (!$this->cache->contains($id)) { |
| 50 | return false; |
| 51 | } |
| 52 | |
| 53 | return $this->cache->fetch($id); |
| 54 | } |
| 55 | |
| 56 | /** |
| 57 | * A function to store content a cache entry. |
| 58 | * |
| 59 | * @param string $id The cache entry ID |
| 60 | * @param array $content The cache content |
| 61 | * @throws \Exception |
| 62 | * @return bool True if the entry was successfully stored |
| 63 | */ |
| 64 | public function save($id, $content, $ttl=0) |
| 65 | { |
| 66 | if (empty($id)) { |
| 67 | return false; |
| 68 | } |
| 69 | |
| 70 | self::$staticCache[$id] = $content; |
| 71 | |
| 72 | return $this->cache->save($id, $content, $this->ttl); |
| 73 | } |
| 74 | |
| 75 | public function contains($id) |
| 76 | { |
| 77 | return !empty(self::$staticCache[$id]) && $this->cache->contains($id); |
| 78 | } |
| 79 | |
| 80 | public function delete($id) |
| 81 | { |
| 82 | if (empty($id)) { |
| 83 | return false; |
| 84 | } |
| 85 | |
| 86 | unset(self::$staticCache[$id]); |
| 87 | |
| 88 | return $this->cache->delete($id); |
| 89 | } |
| 90 | |
| 91 | public function flushAll() |
| 92 | { |
| 93 | return $this->cache->flushAll(); |
| 94 | } |
| 95 | } |
| 96 |