/**
* Add a service to the Service list indexed by priority. Assumes
* a missing or invalid priority should be shuffled to the bottom
* of the priority order.
*
* @param Services_Yadis_Service $service
*/
protected function _addService(Services_Yadis_Service $service)
{
$servicePriority = $service->getPriority();
if (is_null($servicePriority) || !is_numeric($servicePriority)) {
$servicePriority = self::SERVICE_LOWEST_PRIORITY;
}
if (!array_key_exists($servicePriority, $this->_services)) {
$this->_services[$servicePriority] = array();
}
$this->_services[$servicePriority][] = $service;
}
/**
* Creates the service list using nodes from the XRDS XML
* document.
*
* @access private
*/
function _parse()
{
$this->serviceList = array();
$services = $this->parser->evalXPath('xrd:Service', $this->xrdNode);
foreach ($services as $node) {
$s = new Services_Yadis_Service();
$s->element = $node;
$s->parser =& $this->parser;
$priority = $s->getPriority();
if ($priority === null) {
$priority = SERVICES_YADIS_MAX_PRIORITY;
}
$this->_addService($priority, $s);
}
}