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<?php |
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/** |
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* HTTPCached.php |
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* 08-Nov-2011 |
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* |
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* PHP Version 5 |
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* |
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* @category Services |
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* @package Services_OpenStreetMap |
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* @author Ken Guest <kguest@php.net> |
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* @license BSD http://www.opensource.org/licenses/bsd-license.php |
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* @version Release: @package_version@ |
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* @link http://pear.php.net/package/Services_OpenStreetMap |
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*/ |
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require_once 'Cache.php'; |
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require_once 'Services/OpenStreetMap/Transport/HTTP.php'; |
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|
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/** |
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* Services_OpenStreetMap_Transport_HTTPCached |
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* |
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* @category Services |
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* @package Services_OpenStreetMap |
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* @author Ken Guest <kguest@php.net> |
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* @license BSD http://www.opensource.org/licenses/bsd-license.php |
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* @link HTTPCached.php |
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*/ |
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class Services_OpenStreetMap_Transport_HTTPCached |
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extends Services_OpenStreetMap_Transport_HTTP |
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{ |
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protected $cache; |
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/** |
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* __construct |
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* |
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* @return Services_OpenStreetMap_Transport_HTTPCached |
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*/ |
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public function __construct() |
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{ |
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parent::__construct(); |
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$this->setCache(new Cache('file')); |
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} |
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/** |
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* setCache |
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* |
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* @param Cache $cache Cache object |
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* |
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* @return Services_OpenStreetMap_Transport_HTTPCached |
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*/ |
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public function setCache($cache) |
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{ |
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$this->cache = $cache; |
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return $this; |
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} |
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|
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/** |
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* Send request to OSM server and return the response. |
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* |
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* @param string $url URL |
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* @param string $method GET (default)/POST/PUT |
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* @param string $user user (optional for read-only actions) |
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* @param string $password password (optional for read-only actions) |
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* @param string $body body (optional) |
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* @param array $post_data (optional) |
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* @param array $headers (optional) |
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* |
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* @access public |
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* @return HTTP_Request2_Response |
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* @todo Consider just returning the content? |
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* @throws Services_OpenStreetMap_Exception If something unexpected has |
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* happened while conversing with |
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* the server. |
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*/ |
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public function getResponse( |
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$url, |
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$method = HTTP_Request2::METHOD_GET, |
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$user = null, |
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$password = null, |
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$body = null, |
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array $post_data = null, |
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array $headers = null |
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) { |
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$arguments = array( |
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$url, |
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$method, |
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$user, |
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$password, |
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$body, |
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implode(":", (array) $post_data), |
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implode(":", (array) $headers) |
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); |
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$id = md5(implode(":", $arguments)); |
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$data = $this->cache->get($id); |
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if ($data) { |
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$response = new HTTP_Request2_Response(); |
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$response->setStatus(200); |
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$response->setBody($data); |
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return $response; |
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} |
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$response = parent::getResponse( |
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$url, |
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$method, |
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$user, |
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$password, |
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$body, |
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$post_data, |
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$headers |
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); |
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$this->cache->save($id, $response->getBody()); |
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return $response; |
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} |
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} |
