| /* |
| * Copyright 2016-present Open Networking Laboratory |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.onosproject.xosclient.impl; |
| |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.google.common.base.Strings; |
| import com.google.common.collect.Sets; |
| import org.onosproject.xosclient.api.OpenStackAccess; |
| import org.onosproject.xosclient.api.VtnServiceApi; |
| import org.onosproject.xosclient.api.XosAccess; |
| import org.onosproject.xosclient.api.VtnService; |
| import org.onosproject.xosclient.api.VtnServiceId; |
| |
| import org.openstack4j.api.OSClient; |
| import org.openstack4j.api.exceptions.AuthenticationException; |
| import org.openstack4j.model.network.Network; |
| import org.openstack4j.model.network.Subnet; |
| import org.openstack4j.openstack.OSFactory; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.IOException; |
| import java.util.Set; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static com.google.common.base.Preconditions.checkArgument; |
| import static org.onosproject.xosclient.api.VtnServiceApi.NetworkType.*; |
| import static org.onosproject.xosclient.api.VtnServiceApi.ServiceType.*; |
| |
| /** |
| * Provides CORD VTN service and service dependency APIs. |
| */ |
| public final class DefaultVtnServiceApi extends XosApi implements VtnServiceApi { |
| |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| /** |
| * Default constructor. |
| * |
| * @param baseUrl base url |
| * @param access xos access |
| */ |
| public DefaultVtnServiceApi(String baseUrl, XosAccess access) { |
| super(baseUrl, access); |
| } |
| |
| @Override |
| public Set<VtnServiceId> services() { |
| String response = restGet(EMPTY_STRING); |
| log.trace("Get services {}", response); |
| |
| ObjectMapper mapper = new ObjectMapper(); |
| Set<VtnServiceId> services = Sets.newHashSet(); |
| |
| try { |
| JsonNode nodes = mapper.readTree(response); |
| nodes.fieldNames().forEachRemaining(id -> services.add(VtnServiceId.of(id))); |
| } catch (IOException e) { |
| log.warn("Failed to get service list"); |
| } |
| return services; |
| } |
| |
| @Override |
| public VtnService service(VtnServiceId serviceId) { |
| // TODO implement this when XOS provides this API |
| return null; |
| } |
| |
| @Override |
| public Set<VtnServiceId> providerServices(VtnServiceId tServiceId) { |
| checkNotNull(tServiceId); |
| |
| String response = restGet(tServiceId.id()); |
| log.trace("Get provider services {}", response); |
| |
| ObjectMapper mapper = new ObjectMapper(); |
| Set<VtnServiceId> pServices = Sets.newHashSet(); |
| |
| try { |
| JsonNode nodes = mapper.readTree(response); |
| nodes.forEach(node -> pServices.add(VtnServiceId.of(node.asText()))); |
| } catch (IOException e) { |
| log.warn("Failed to get service dependency"); |
| } |
| return pServices; |
| } |
| |
| @Override |
| public Set<VtnServiceId> tenantServices(VtnServiceId tServiceId) { |
| checkNotNull(tServiceId); |
| |
| String response = restGet(EMPTY_STRING); |
| log.trace("Get tenant services {}", response); |
| |
| ObjectMapper mapper = new ObjectMapper(); |
| Set<VtnServiceId> tServices = Sets.newHashSet(); |
| |
| try { |
| JsonNode nodes = mapper.readTree(response); |
| nodes.fields().forEachRemaining(entry -> entry.getValue().forEach( |
| pService -> { |
| if (pService.asText().equals(tServiceId.id())) { |
| tServices.add(VtnServiceId.of(entry.getKey())); |
| } |
| })); |
| } catch (IOException e) { |
| log.warn("Failed to get service list"); |
| } |
| return tServices; |
| } |
| |
| @Override |
| // TODO remove this when XOS provides this information |
| public VtnService service(VtnServiceId serviceId, OpenStackAccess osAccess) { |
| checkNotNull(osAccess); |
| |
| OSClient osClient = getOpenStackClient(osAccess); |
| Network osNet = osClient.networking().network().get(serviceId.id()); |
| if (osNet == null) { |
| log.warn("Failed to get OpenStack network {}", serviceId); |
| return null; |
| } |
| |
| // assumes all cord service networks has single subnet |
| Subnet osSubnet = osNet.getNeutronSubnets().stream() |
| .findFirst().orElse(null); |
| if (osSubnet == null) { |
| log.warn("Failed to get OpenStack subnet of network {}", serviceId); |
| return null; |
| } |
| |
| return VtnService.build() |
| .id(serviceId) |
| .name(osNet.getName()) |
| .serviceType(serviceType(osNet.getName())) |
| .networkType(networkType(osNet.getName())) |
| .vni(osNet.getProviderSegID()) |
| .subnet(osSubnet.getCidr()) |
| .serviceIp(osSubnet.getGateway()) |
| .providerServices(providerServices(serviceId)) |
| .tenantServices(tenantServices(serviceId)) |
| .build(); |
| } |
| |
| // TODO remove this when XOS provides this information |
| private OSClient getOpenStackClient(OpenStackAccess osAccess) { |
| checkNotNull(osAccess); |
| |
| // creating a client every time must be inefficient, but this method |
| // will be removed once XOS provides equivalent APIs |
| try { |
| return OSFactory.builder() |
| .endpoint(osAccess.endpoint()) |
| .credentials(osAccess.user(), osAccess.password()) |
| .tenantName(osAccess.tenant()) |
| .authenticate(); |
| } catch (AuthenticationException e) { |
| log.warn("Failed to authenticate OpenStack API with {}", osAccess); |
| return null; |
| } |
| } |
| |
| // TODO remove this when XOS provides this information |
| private NetworkType networkType(String netName) { |
| checkArgument(!Strings.isNullOrEmpty(netName), "VTN network name cannot be null"); |
| |
| String name = netName.toUpperCase(); |
| if (name.contains(PUBLIC.name())) { |
| return PUBLIC; |
| } else if (name.contains(MANAGEMENT_HOSTS.name())) { |
| return MANAGEMENT_HOSTS; |
| } else if (name.contains("MANAGEMENT")) { |
| return MANAGEMENT_LOCAL; |
| } else { |
| return PRIVATE; |
| } |
| } |
| |
| // TODO remove this when XOS provides this information |
| private ServiceType serviceType(String netName) { |
| checkArgument(!Strings.isNullOrEmpty(netName), "VTN network name cannot be null"); |
| |
| String name = netName.toUpperCase(); |
| if (name.contains(VSG.name())) { |
| return VSG; |
| } else if (name.contains(ACCESS_AGENT.name())) { |
| return ACCESS_AGENT; |
| } else if (name.contains(ServiceType.MANAGEMENT.name())) { |
| return ServiceType.MANAGEMENT; |
| } else { |
| return DEFAULT; |
| } |
| } |
| } |