/**
* Returns the fitting response writer
*
* @param string $writerType
* @return \PSX\Data\WriterInterface
*/
private function getResponseWriter($writerType = null)
{
if ($writerType === null) {
$writer = $this->getPreferredWriter();
} else {
$writer = $this->writerFactory->getWriterByInstance($writerType);
}
if ($writer === null) {
$writer = $this->writerFactory->getDefaultWriter($this->getSupportedWriter());
}
if (!$writer instanceof WriterInterface) {
throw new StatusCode\NotAcceptableException('Could not find fitting data writer');
}
return $writer;
}
