/**
* Make an OAI-PMH request. Die if there is an error; return a SimpleXML object
* on success.
*
* @param string $verb OAI-PMH verb to execute.
* @param array $params GET parameters for ListRecords method.
*
* @return object SimpleXML-formatted response.
*/
protected function sendRequest($verb, $params = [])
{
$result = $this->communicator->request($verb, $params);
// Detect errors and die if one is found:
if ($result->error) {
$attribs = $result->error->attributes();
throw new \Exception("OAI-PMH error -- code: {$attribs['code']}, " . "value: {$result->error}");
}
return $result;
}
/**
* Get the communicator.
*
* @param Client $client HTTP client
* @param array $settings Additional settings
* @param ResponseProcessorInterface $processor Response processor
* @param string $target Target being configured (used for
* error messages)
*
* @return Communicator
*/
protected function getCommunicator(Client $client, array $settings, ResponseProcessorInterface $processor, $target)
{
if (empty($settings['url'])) {
throw new \Exception("Missing base URL for {$target}.");
}
$comm = new Communicator($settings['url'], $client, $processor);
// We only want the communicator to output messages if we are in verbose
// mode; communicator messages are considered verbose output.
if (isset($settings['verbose']) && $settings['verbose'] && ($writer = $this->getConsoleWriter($settings))) {
$comm->setOutputWriter($writer);
}
return $comm;
}
/**
* Make an OAI-PMH request. Die if there is an error; return a SimpleXML object
* on success.
*
* @param string $verb OAI-PMH verb to execute.
* @param array $params GET parameters for ListRecords method.
*
* @return object SimpleXML-formatted response.
*/
protected function sendRequest($verb, $params = [])
{
$response = $this->communicator->request($verb, $params);
$this->checkResponseForErrors($response);
return $response;
}