/**
* Given a list of cache types and options, creates a CompositeDrivers wrapping the specified drivers.
*
* @param $types
* @param $options
* @throws \RuntimeException
* @return DriverInterface
*/
public static function createDriver($types, $options)
{
$drivers = DriverList::getAvailableDrivers();
$h = array();
foreach ($types as $type) {
if (!isset($drivers[$type])) {
$allDrivers = DriverList::getAllDrivers();
if (isset($allDrivers[$type])) {
throw new \RuntimeException('Driver currently unavailable.');
} else {
throw new \RuntimeException('Driver does not exist.');
}
}
$class = $drivers[$type];
if ($type === 'Memcache' && isset($options[$type])) {
// Fix servers spec since underlying drivers expect plain arrays, not hashes.
$servers = array();
foreach ($options[$type]['servers'] as $serverSpec) {
$servers[] = array($serverSpec['server'], $serverSpec['port'], isset($serverSpec['weight']) ? $serverSpec['weight'] : null);
}
$options[$type]['servers'] = $servers;
}
$opts = isset($options[$type]) ? $options[$type] : array();
$driver = new $class();
$driver->setOptions($opts);
$h[] = $driver;
}
if (count($h) == 1) {
return reset($h);
}
$class = $drivers['Composite'];
$driver = new $class();
$driver->setOptions(array('drivers' => $h));
return $driver;
}
public function testGetAllDrivers()
{
DriverList::registerDriver('TestBroken_getAll', 'stdClass');
$drivers = DriverList::getAllDrivers();
$this->assertArrayNotHasKey('TestBroken_getAll', $drivers, 'getAllDrivers doesn\'t return TestBroken driver');
DriverList::registerDriver('TestUnavailable_getAll', '\\Stash\\Test\\Stubs\\DriverUnavailableStub');
$drivers = DriverList::getAllDrivers();
$this->assertArrayHasKey('TestUnavailable_getAll', $drivers, 'getAllDrivers doesn\'t return TestBroken driver');
}
