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<?php |
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/** |
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* This file is part of the Teazee package. |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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* |
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* @license MIT License |
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*/ |
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namespace Teazee\Provider; |
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use Http\Client\HttpClient; |
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use Http\Message\MessageFactory; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\UriInterface; |
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use RuntimeException; |
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use Teazee\Exception\ServiceMissingException; |
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/** |
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* @author Michael Crumm <[email protected]> |
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*/ |
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abstract class AbstractHttpProvider extends AbstractProvider |
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{ |
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/** |
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* @var HttpClient |
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*/ |
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private $client; |
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/** |
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* @var MessageFactory |
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*/ |
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private $messageFactory; |
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/** |
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* AbstractHttpProvider Constructor. |
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* |
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* @param HttpClient $client HttpClient makes HTTP requests. |
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* @param MessageFactory $messageFactory MessageFactory creates Request objects. |
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*/ |
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public function __construct(HttpClient $client = null, MessageFactory $messageFactory = null) |
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{ |
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if (null === $client && !class_exists('Http\Discovery\HttpClientDiscovery')) { |
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throw ServiceMissingException::noHttpClient(); |
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} |
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$this->client = $client ?: \Http\Discovery\HttpClientDiscovery::find(); |
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if (null === $messageFactory && !class_exists('Http\Discovery\MessageFactoryDiscovery')) { |
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throw ServiceMissingException::noMessageFactory(); |
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} |
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$this->messageFactory = $messageFactory ?: \Http\Discovery\MessageFactoryDiscovery::find(); |
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} |
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/** |
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* Returns a ResponseInterface for the given URI/method. |
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* |
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* @param string|UriInterface $uri Request URI. |
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* @param string $method HTTP method (Defaults to 'GET'). |
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* |
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* @return ResponseInterface |
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*/ |
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protected function getResponse($uri, $method = 'GET') |
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{ |
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$request = $this->messageFactory->createRequest($method, $uri); |
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return $this->client->sendRequest($request); |
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} |
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/** |
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* @param string|float $lat Coordinate latitude. |
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* @param string|float $lng Coordinate longitude. |
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* @param int|null $timestamp Seconds since Jan 1, 1970 UTC. |
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* |
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* @throws RuntimeException When the response body cannot be decoded. |
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* |
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* @return object |
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*/ |
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protected function getResult($lat, $lng, $timestamp = null) |
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{ |
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$query = $this->buildUri($lat, $lng, $timestamp); |
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$response = $this->getResponse($query); |
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$data = json_decode($response->getBody()->getContents()); |
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if (JSON_ERROR_NONE !== json_last_error()) { |
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throw new RuntimeException((string) json_last_error_msg()); |
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} |
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return $data; |
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} |
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/** |
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* Returns the URI for the specified location and timestamp. |
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* |
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* @param string|float $lat Coordinate latitude. |
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* @param string|float $lng Coordinate longitude. |
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* @param int|null $timestamp Seconds since Jan 1, 1970 UTC. |
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* |
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* @return string|UriInterface |
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*/ |
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abstract protected function buildUri($lat, $lng, $timestamp = null); |
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} |
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wyndow /
teazee
