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<?php |
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namespace Germania\IpstackClient; |
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use Germania\IpstackClient\IpstackClientInterface; |
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use Psr\Cache\CacheItemPoolInterface; |
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use Psr\Log\LoggerInterface; |
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use Psr\Log\NullLogger; |
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use Psr\Log\LoggerAwareTrait; |
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class IpstackClientPsr6CacheDecorator implements IpstackClientInterface |
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{ |
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use LoggerAwareTrait; |
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/** |
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* @var CacheItemPoolInterface |
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*/ |
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public $cache; |
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/** |
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* @var int|null |
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*/ |
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public $cache_lifetime; |
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/** |
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* @param IpstackClientInterface $ipstack_client |
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* @param CacheItemPoolInterface $cache PSR-6 Cache ItemPool |
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*/ |
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public function __construct( IpstackClientInterface $ipstack_client, CacheItemPoolInterface $cache, LoggerInterface $logger = null ) |
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{ |
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$this->ipstack_client = $ipstack_client; |
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$this->cache = $cache; |
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$this->setLogger( $logger ?: new NullLogger ); |
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} |
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/** |
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* @param int|null $lifetime Cache Lifetime in seconds (or NULL) |
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* @return self |
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*/ |
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public function setCacheLifeTime( $lifetime ) |
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{ |
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$this->cache_lifetime = $lifetime; |
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return $this; |
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} |
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/** |
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* @return int|null |
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*/ |
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public function getCacheLifeTime() |
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{ |
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return $this->cache_lifetime; |
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} |
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public function get( string $client_ip, array $custom_query = array() ) : array |
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{ |
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$item = $this->cache->getItem( sha1($client_ip) ); |
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$ipstack = $item->get(); |
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// No valid item? |
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if(!$item->isHit()): |
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$this->logger->debug("No ipstack info in cache"); |
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// Run intensive code: Ask ipstack directly |
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$ipstack = $this->ipstack_client->get( $client_ip, $custom_query ); |
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// Store data for future use. |
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$this->logger->info("Write ipstack info to cache", $ipstack); |
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$item->set($ipstack); |
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$lifetime = $this->getCacheLifeTime(); |
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$item->expiresAfter($lifetime); |
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$this->cache->save($item); |
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// Valid item found |
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else: |
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$this->logger->notice("Found ipstack info in cache", $ipstack); |
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endif; |
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return $ipstack; |
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} |
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} |
GermaniaKG /
ipstack
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: