/**
* Returns the configured hosts for $stage.
*
* @param string $stage
*
* @return Host[]
*
* @throws UnexpectedValueException when $stage is not a valid type
*/
public function getHostsByStage($stage)
{
if (Host::isValidStage($stage) === false) {
throw new UnexpectedValueException(sprintf("'%s' is not a valid stage.", $stage));
}
$hosts = array();
foreach ($this->getHosts() as $host) {
if ($host->getStage() === $stage) {
$hosts[] = $host;
}
}
return $hosts;
}
