/**
* Retrieve remote instance for a given DSN. Invoking this method
* twice with the same dsn will result in the same instance.
*
* @param string dsn
* @return remote.Remote
* @throws remote.RemoteException in case of setup failure
*/
public static function forName($dsn)
{
static $instances = array();
$pool = HandlerInstancePool::getInstance();
$list = explode(',', $dsn);
shuffle($list);
foreach ($list as $key) {
$key = trim($key);
if (isset($instances[$key])) {
return $instances[$key];
}
// No instance yet, so get it
$e = $instance = NULL;
try {
$instance = new self();
$instance->_handler = $pool->acquire($key, TRUE);
} catch (RemoteException $e) {
continue;
// try next
} catch (XPException $e) {
$e = new RemoteException($e->getMessage(), $e);
continue;
// try next
}
// Success, cache instance and return
$instances[$key] = $instance;
return $instance;
}
// No more active hosts
throw $e;
}
/**
* Setup method
*
*/
public function setUp()
{
$pool = HandlerInstancePool::getInstance();
foreach (array(REMOTE_SPEC_ONE => TRUE, REMOTE_SPEC_TWO => FALSE, REMOTE_SPEC_THREE => FALSE, REMOTE_SPEC_OTHER => TRUE) as $spec => $avail) {
$this->handler[$spec] = $pool->acquire($spec);
$this->handler[$spec]->server['available'] = $avail;
}
}
