Examples with MsoNetworkAlreadyExists org.onap.so.openstack.exceptions.MsoNetworkAlreadyExists used on opensource projects

Example 1 with MsoNetworkAlreadyExists

use of org.onap.so.openstack.exceptions.MsoNetworkAlreadyExists in project so by onap.

the class MsoNeutronUtils method createNetwork.

/**
 * Create a network with the specified parameters in the given cloud/tenant.
 *
 * If a network already exists with the same name, an exception will be thrown. Note that this is an MSO-imposed
 * restriction. Openstack does not require uniqueness on network names.
 * <p>
 *
 * @param cloudSiteId The cloud identifier (may be a region) in which to create the network.
 * @param tenantId The tenant in which to create the network
 * @param type The type of network to create (Basic, Provider, Multi-Provider)
 * @param networkName The network name to create
 * @param provider The provider network name (for Provider or Multi-Provider networks)
 * @param vlans A list of VLAN segments for the network (for Provider or Multi-Provider networks)
 * @return a NetworkInfo object which describes the newly created network
 * @throws MsoNetworkAlreadyExists Thrown if a network with the same name already exists
 * @throws MsoOpenstackException Thrown if the Openstack API call returns an exception
 * @throws MsoCloudSiteNotFound Thrown if the cloudSite is invalid or unknown
 */
public NetworkInfo createNetwork(String cloudSiteId, String tenantId, NetworkType type, String networkName, String provider, List<Integer> vlans) throws MsoException {
    // Obtain the cloud site information where we will create the stack
    CloudSite cloudSite = cloudConfig.getCloudSite(cloudSiteId).orElseThrow(() -> new MsoCloudSiteNotFound(cloudSiteId));
    Quantum neutronClient = getNeutronClient(cloudSite, tenantId);
    // Check if a network already exists with this name
    // Openstack will allow duplicate name, so require explicit check
    Network network = findNetworkByName(neutronClient, networkName);
    if (network != null) {
        // Network already exists. Throw an exception
        logger.error("{} Network {} on Cloud site {} for tenant {} already exists {}", MessageEnum.RA_NETWORK_ALREADY_EXIST, networkName, cloudSiteId, tenantId, ErrorCode.DataError.getValue());
        throw new MsoNetworkAlreadyExists(networkName, tenantId, cloudSiteId);
    }
    // Does not exist, create a new one
    network = new Network();
    network.setName(networkName);
    network.setAdminStateUp(true);
    if (type == NetworkType.PROVIDER) {
        if (provider != null && vlans != null && !vlans.isEmpty()) {
            network.setProviderPhysicalNetwork(provider);
            network.setProviderNetworkType("vlan");
            network.setProviderSegmentationId(vlans.get(0));
        }
    } else if (type == NetworkType.MULTI_PROVIDER) {
        if (provider != null && vlans != null && !vlans.isEmpty()) {
            List<Segment> segments = new ArrayList<>(vlans.size());
            for (int vlan : vlans) {
                Segment segment = new Segment();
                segment.setProviderPhysicalNetwork(provider);
                segment.setProviderNetworkType("vlan");
                segment.setProviderSegmentationId(vlan);
                segments.add(segment);
            }
            network.setSegments(segments);
        }
    }
    try {
        OpenStackRequest<Network> request = neutronClient.networks().create(network);
        Network newNetwork = executeAndRecordOpenstackRequest(request);
        return new NetworkInfoMapper(newNetwork).map();
    } catch (OpenStackBaseException e) {
        // Convert Neutron exception to an MsoOpenstackException
        MsoException me = neutronExceptionToMsoException(e, "CreateNetwork");
        throw me;
    } catch (RuntimeException e) {
        // Catch-all
        MsoException me = runtimeExceptionToMsoException(e, "CreateNetwork");
        throw me;
    }
}