@Override
public FirewallManager getFirewallManager(ComputeService computeService) throws FirewallNotSupportedOnProviderException {
assertValid();
ApiFirewallSupport firewallSupport = findApiFirewallSupport(computeService);
if (firewallSupport == null) {
throw new FirewallNotSupportedOnProviderException("Service is currently not supported for firewall operations");
}
FirewallManager firewallManager = new FirewallManager(computeService, firewallSupport);
return firewallManager;
}