public static function loadSource($sourceName, $channelName)
{
global $logger;
self::$sourceDAO = DAOFactory::getSourcesDAO();
$logger->debug("CHECK - Fetch Source Details with source '{$sourceName}' and channel '{$channelName}'");
$isValid = SourceTypes::isValidName($sourceName);
if (!$isValid) {
throw new MalformedRequestDataException("Source '{$sourceName}' is an invalid source type; " . "Must be one of '" . join(', ', SourceTypes::getConstants()) . "'");
}
$sourceObj = self::$sourceDAO->queryBySourceAndChannelName($sourceName, $channelName);
if (!isset($sourceObj)) {
$logger->debug('CHECK - Fetched Source: ' . $sourceObj);
throw new SourceNotFoundException($sourceName, $channelName);
}
$logger->debug('CHECK - Fetched Source: ' . $sourceObj->toString());
return $sourceObj;
}
private function sanitize($data)
{
if (!isset($data['name'])) {
throw new MissingParametersException("Channel 'name' field is missing");
}
if (!isset($data['description'])) {
throw new MissingParametersException("Channel 'description' field is missing");
}
if (empty($data['name'])) {
throw new MissingParametersException("Channel 'name' field cannot be empty");
}
if (!ctype_alpha($data['name'])) {
throw new MalformedRequestDataException("Channel 'name' field must be an alphabetic value");
}
$sources = $data['sources'];
if (isset($sources) && !is_array($sources)) {
throw new MalformedRequestDataException("Channel's 'sources' field must be an array of source-names");
} else {
if (isset($sources) && is_array($sources)) {
foreach ($sources as $sourceName) {
$isValid = SourceTypes::isValidName($sourceName);
if (!$isValid) {
throw new MalformedRequestDataException("Channel's source '{$sourceName}' is invalid; " . "Source names must be one of '" . join(', ', SourceTypes::getConstants()) . "'");
}
}
}
}
}