@Override
public void canProviderSupportServices(Map<Provider, Set<Service>> providersMap) {
for (Provider provider : providersMap.keySet()) {
// check if services can be turned off
NetworkElement element = getElementImplementingProvider(provider.getName());
if (element == null) {
throw new InvalidParameterValueException("Unable to find the Network Element implementing the Service Provider '" + provider.getName() + "'");
}
Set<Service> enabledServices = new HashSet<Service>();
enabledServices.addAll(providersMap.get(provider));
if (enabledServices != null && !enabledServices.isEmpty()) {
if (!element.canEnableIndividualServices()) {
Set<Service> requiredServices = new HashSet<Service>();
requiredServices.addAll(element.getCapabilities().keySet());
if (requiredServices.contains(Network.Service.Gateway)) {
requiredServices.remove(Network.Service.Gateway);
}
if (requiredServices.contains(Network.Service.Firewall)) {
requiredServices.remove(Network.Service.Firewall);
}
if (enabledServices.contains(Network.Service.Firewall)) {
enabledServices.remove(Network.Service.Firewall);
}
// exclude gateway service
if (enabledServices.size() != requiredServices.size()) {
StringBuilder servicesSet = new StringBuilder();
for (Service requiredService : requiredServices) {
// skip gateway service as we don't allow setting it via API
if (requiredService == Service.Gateway) {
continue;
}
servicesSet.append(requiredService.getName() + ", ");
}
servicesSet.delete(servicesSet.toString().length() - 2, servicesSet.toString().length());
throw new InvalidParameterValueException("Cannot enable subset of Services, Please specify the complete list of Services: " +
servicesSet.toString() + " for Service Provider " + provider.getName());
}
}
List<String> serviceList = new ArrayList<String>();
for (Service service : enabledServices) {
// check if the service is provided by this Provider
if (!element.getCapabilities().containsKey(service)) {
throw new UnsupportedServiceException(provider.getName() + " Provider cannot provide service " + service.getName());
}
serviceList.add(service.getName());
}
if (!element.verifyServicesCombination(enabledServices)) {
throw new UnsupportedServiceException("Provider " + provider.getName() + " doesn't support services combination: " + serviceList);
}
}
}
}