/**
* executeAsync
*
* Execute an operation asynchronously.
*
* @param \ArtaxServiceBuilder\Operation $operation The operation to perform
* @param callable $callback The callback to call on completion/response. The
* signature of the method should be:
* function(
* \Exception $error = null, // null if no error
* $parsedData = null, //The parsed operation data i.e. same type as
* responseClass of the operation.
* \Amp\Artax\Response $response = null //The response received or null if the
* request completely failed.
* )
* @return \Amp\Promise A promise to resolve the call at some time.
*/
public function executeAsync(\Amp\Artax\Request $request, \ArtaxServiceBuilder\Operation $operation, callable $callback)
{
$originalRequest = clone $request;
$cachingHeaders = $this->responseCache->getCachingHeaders($request);
$request->setAllHeaders($cachingHeaders);
$promise = $this->client->request($request);
$promise->when(function (\Exception $error = null, Response $response = null) use($originalRequest, $callback, $operation) {
if ($response) {
$operation->setResponse($response);
$operation->setOriginalResponse($response);
}
if ($error) {
$callback($error, null, null);
return;
}
if ($operation->shouldResponseBeCached($response)) {
$this->responseCache->storeResponse($originalRequest, $response);
}
if ($operation->shouldUseCachedResponse($response)) {
$cachedResponse = $this->responseCache->getResponse($originalRequest);
if ($cachedResponse) {
$response = $cachedResponse;
$operation->setResponse($response);
}
}
$responseException = $operation->translateResponseToException($response);
if ($responseException) {
$callback($responseException, null, $response);
return;
}
if ($operation->shouldResponseBeProcessed($response)) {
try {
$parsedResponse = $operation->processResponse($response);
$callback(null, $parsedResponse, $response);
} catch (\Exception $e) {
$exception = new ProcessResponseException("Exception parsing response: " . $e->getMessage(), 0, $e);
$callback($exception, null, $response);
}
} else {
$callback(null, null, $response);
}
});
return $promise;
}
