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<?php |
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namespace IBM\Watson\Common; |
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use GuzzleHttp\ClientInterface; |
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use GuzzleHttp\Client as HttpClient; |
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use Symfony\Component\HttpFoundation\ParameterBag; |
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use Symfony\Component\HttpFoundation\Request as HttpRequest; |
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/** |
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* Base Watson service class |
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* |
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* This abstract class should be extended by all Watson services. |
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* |
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* @see ServiceInterface |
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*/ |
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abstract class AbstractService implements ServiceInterface |
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{ |
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/** |
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* @var \GuzzleHttp\ClientInterface |
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*/ |
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protected $httpClient; |
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/** |
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* @var \Symfony\Component\HttpFoundation\Request |
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*/ |
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protected $httpRequest; |
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/** |
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* @var \Symfony\Component\HttpFoundation\ParameterBag |
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*/ |
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protected $parameters; |
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/** |
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* AbstractService constructor. |
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* @param ClientInterface $httpClient |
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* @param HttpRequest $httpRequest |
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*/ |
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public function __construct(ClientInterface $httpClient = null, HttpRequest $httpRequest = null) |
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{ |
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$this->httpClient = $httpClient ?: $this->getDefaultHttpClient(); |
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$this->httpRequest = $httpRequest ?: $this->getDefaultHttpRequest(); |
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$this->initialize(); |
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} |
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/** |
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* Initialize service with default parameters |
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* |
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* @param array $parameters |
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* @return $this |
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*/ |
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public function initialize(array $parameters = []) |
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{ |
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$this->parameters = new ParameterBag; |
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foreach ($this->getDefaultParameters() as $key => $value) { |
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if (is_array($value)) { |
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$this->parameters->set($key, reset($value)); |
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} else { |
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$this->parameters->set($key, $value); |
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} |
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} |
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Helper::initialize($this, $parameters); |
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return $this; |
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} |
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/** |
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* @return array |
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*/ |
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public function getDefaultParameters() |
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{ |
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return [ |
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'username' => null, |
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'password' => null |
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]; |
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} |
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/** |
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* @return array |
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*/ |
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public function getParameters() |
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{ |
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return $this->parameters->all(); |
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} |
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/** |
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* @param string $key |
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* @return mixed |
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*/ |
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public function getParameter($key) |
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{ |
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return $this->parameters->get($key); |
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} |
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/** |
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* @param string $key |
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* @param mixed $value |
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* @return $this |
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*/ |
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public function setParameter($key, $value) |
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{ |
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$this->parameters->set($key, $value); |
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return $this; |
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} |
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/** |
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* @param string $value |
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* @return $this |
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*/ |
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public function setUsername($value) |
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{ |
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return $this->setParameter('username', $value); |
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} |
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/** |
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* @return string |
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*/ |
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public function getUsername() |
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{ |
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return $this->getParameter('username'); |
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} |
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/** |
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* @param string $value |
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* @return $this |
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*/ |
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public function setPassword($value) |
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{ |
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return $this->setParameter('password', $value); |
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} |
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/** |
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* @return string |
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*/ |
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public function getPassword() |
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{ |
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return $this->getParameter('password'); |
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} |
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/** |
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* Get default HTTP client |
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* |
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* @return HttpClient |
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*/ |
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protected function getDefaultHttpClient() |
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{ |
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return new HttpClient(['curl.options' => [CURLOPT_CONNECTTIMEOUT => 60]]); |
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} |
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/** |
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* Get default HTTP request from globals |
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* |
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* @return HttpRequest |
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*/ |
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protected function getDefaultHttpRequest() |
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{ |
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return HttpRequest::createFromGlobals(); |
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} |
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/** |
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* Create and initialize a request object |
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* |
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* @param string $class The request class name |
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* @param array $parameters |
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* |
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* @return \IBM\Watson\Common\Message\AbstractRequest |
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*/ |
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protected function createRequest($class, array $parameters) |
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{ |
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$obj = new $class($this->httpClient, $this->httpRequest); |
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return $obj->initialize(array_replace($this->getParameters(), $parameters)); |
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} |
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} |
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