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<?php |
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namespace kop\kue; |
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use GuzzleHttp\Client as HttpClient; |
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use kop\kue\exceptions\ApiException; |
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use kop\kue\resources\Job; |
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use Psr\Log\LoggerInterface; |
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use Psr\Log\NullLogger; |
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/** |
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* Class `Client` |
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* ============== |
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* |
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* This class represents a client for Kue JSON API. |
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* |
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* |
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* @link https://kop.github.io/php-kue-client/ Project page. |
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* @license https://github.com/kop/php-kue-client/blob/master/LICENSE.md MIT |
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* |
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* @author Ivan Koptiev <[email protected]> |
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*/ |
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class Client |
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{ |
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/** |
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* @var HttpClient $httpClient Guzzle HTTP client. |
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*/ |
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private $httpClient; |
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/** |
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* @var LoggerInterface $logger PSR-3 compatible logger. |
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*/ |
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private $logger; |
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/** |
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* @var bool $throwExceptions Whether to throw exceptions in case of API request errors or just return `false`. |
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*/ |
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private $throwExceptions; |
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/** |
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* @var array $resources Instances of Kue API resources. |
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*/ |
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private $resources = []; |
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/** |
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* Class constructor. |
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* |
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* @param string $apiURI URI of the Kue JSON API server. |
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* @param array $clientOptions Options that are used as default request options with every request created by the client. |
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* You can use this param to configure proxy, authentication or other request settings. |
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* See {@link http://docs.guzzlephp.org/en/latest/request-options.html Guzzle documentation} for options available. |
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* @param LoggerInterface $logger PSR-3 compatible logger to use. Logging is disabled by default. |
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* @param bool $throwExceptions Whether to throw exceptions in case of API request errors or just return `false`. |
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* Exceptions are disabled by default. |
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*/ |
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public function __construct($apiURI, array $clientOptions = [], LoggerInterface $logger = null, $throwExceptions = false) |
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{ |
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$this->httpClient = new HttpClient(array_merge($clientOptions, [ |
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'base_uri' => $apiURI, |
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'headers' => [ |
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'Accept' => 'application/json', |
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] |
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])); |
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$this->setLogger($logger); |
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$this->setThrowExceptions($throwExceptions); |
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} |
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/** |
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* Responds with state counts, and worker activity time in milliseconds. |
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* |
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* @return bool|mixed API response or `false` if API request fails. |
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* @throws \kop\kue\exceptions\ApiException If API request fails and {@link Client::$_throwExceptions} is enabled. |
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*/ |
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public function stats() |
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{ |
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return $this->request('GET', 'stats'); |
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} |
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/** |
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* Returns a `Job` resource object. |
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* |
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* This object implements commands that are related to the Kue jobs. |
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* |
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* @return Job |
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*/ |
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public function jobs() |
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{ |
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if (!isset($this->resources[Job::class])) { |
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$this->resources[Job::class] = new Job($this); |
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} |
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return $this->resources[Job::class]; |
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} |
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/** |
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* Returns Guzzle HTTP client. |
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* |
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* @return HttpClient |
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*/ |
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public function getHttpClient() |
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{ |
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return $this->httpClient; |
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} |
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/** |
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* Sets a logger instance to use. |
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* |
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* @param LoggerInterface|null $logger PSR-3 compatible logger or null to disable logging. |
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*/ |
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public function setLogger(LoggerInterface $logger = null) |
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{ |
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$this->logger = $logger; |
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} |
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/** |
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* Returns a logger instance. |
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* |
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* @return LoggerInterface |
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*/ |
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public function getLogger() |
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{ |
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if (!$this->logger) { |
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$this->logger = new NullLogger(); |
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} |
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return $this->logger; |
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} |
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/** |
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* Sets an option whether to throw API exceptions or not. |
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* |
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* @param bool $enabled Whether to throw exceptions. |
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*/ |
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public function setThrowExceptions($enabled = true) |
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{ |
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$this->throwExceptions = $enabled; |
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} |
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/** |
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* Returns an option whether to throw API exceptions or not. |
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* |
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* @return bool Whether to throw exceptions |
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*/ |
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public function getThrowExceptions() |
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{ |
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return $this->throwExceptions; |
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} |
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/** |
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* Executes a request against the Kue JSON API. |
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* |
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* @param string $method HTTP method to use (e.g. GET, POST, etc). |
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* @param string $path Request path. |
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* @param array $options Additional request options. |
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* |
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* @return bool|mixed API response or `false` if API request fails. |
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* @throws \kop\kue\exceptions\ApiException If API request fails and {@link Client::$_throwExceptions} is enabled. |
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*/ |
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public function request($method, $path, array $options = []) |
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{ |
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// Make request |
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$this->getLogger()->debug("Executing Kue API request: {$method} {$path}", $options); |
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$response = $this->httpClient->request($method, $path, $options); |
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// Success |
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if ($response->getStatusCode() === 200) { |
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$this->getLogger()->debug('API request successfully completed.', [ |
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'response' => $response->getBody(), |
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]); |
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return json_decode($response->getBody()); |
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} |
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// Failure |
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$this->getLogger()->error('Kue API error #' . $response->getStatusCode(), [ |
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'reason' => $response->getReasonPhrase(), |
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'body' => $response->getBody(), |
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]); |
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if ($this->getThrowExceptions()) { |
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throw new ApiException($response->getStatusCode(), $response->getBody()); |
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} |
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return false; |
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} |
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} |