Hyunsun Moon | eaf75e6 | 2016-09-27 16:40:23 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016-present Open Networking Laboratory |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
Hyunsun Moon | fd5a24e | 2016-10-19 19:15:48 -0700 | [diff] [blame^] | 16 | package org.opencord.cordvtn.api.net; |
Hyunsun Moon | eaf75e6 | 2016-09-27 16:40:23 -0700 | [diff] [blame] | 17 | |
| 18 | import com.google.common.base.MoreObjects; |
| 19 | import com.google.common.base.Strings; |
| 20 | import com.google.common.collect.ImmutableSet; |
| 21 | import com.google.common.collect.Sets; |
| 22 | import org.onlab.packet.IpAddress; |
| 23 | import org.onlab.packet.IpPrefix; |
Hyunsun Moon | fd5a24e | 2016-10-19 19:15:48 -0700 | [diff] [blame^] | 24 | import org.opencord.cordvtn.api.dependency.Dependency; |
Hyunsun Moon | eaf75e6 | 2016-09-27 16:40:23 -0700 | [diff] [blame] | 25 | import org.openstack4j.model.network.Network; |
| 26 | import org.openstack4j.model.network.Subnet; |
| 27 | |
| 28 | import java.util.Objects; |
| 29 | import java.util.Set; |
| 30 | |
| 31 | import static com.google.common.base.Preconditions.checkArgument; |
| 32 | import static com.google.common.base.Preconditions.checkNotNull; |
Hyunsun Moon | fd5a24e | 2016-10-19 19:15:48 -0700 | [diff] [blame^] | 33 | import static org.opencord.cordvtn.api.net.ServiceNetwork.ServiceNetworkType.PRIVATE; |
Hyunsun Moon | eaf75e6 | 2016-09-27 16:40:23 -0700 | [diff] [blame] | 34 | |
| 35 | /** |
Hyunsun Moon | 5c14395 | 2016-10-19 18:34:46 -0700 | [diff] [blame] | 36 | * Representation of a network holding the basic virtual network and additional |
| 37 | * service network specific information. |
Hyunsun Moon | fd5a24e | 2016-10-19 19:15:48 -0700 | [diff] [blame^] | 38 | * All the services making use of CordVtnService are intended to interface |
Hyunsun Moon | 5c14395 | 2016-10-19 18:34:46 -0700 | [diff] [blame] | 39 | * with this VtnNetwork, and not allowed to directly access {@link Network} or |
| 40 | * {@link ServiceNetwork}. |
Hyunsun Moon | eaf75e6 | 2016-09-27 16:40:23 -0700 | [diff] [blame] | 41 | */ |
| 42 | public final class VtnNetwork extends ServiceNetwork { |
| 43 | |
| 44 | private static final String ERR_SEGMENT_ID_MISSING = "VTN network segment ID is missing"; |
| 45 | private static final String ERR_GATEWAY_IP_MISSING = "VTN subnet gateway IP is missing"; |
| 46 | |
| 47 | private final SegmentId segmentId; |
| 48 | private final IpPrefix subnet; |
| 49 | private final IpAddress serviceIp; |
| 50 | |
| 51 | private VtnNetwork(NetworkId id, |
| 52 | SegmentId segmentId, |
| 53 | IpPrefix subnet, |
| 54 | IpAddress serviceIp, |
| 55 | ServiceNetworkType type, |
| 56 | Set<ProviderNetwork> providers) { |
| 57 | super(id, type, providers); |
| 58 | this.segmentId = segmentId; |
| 59 | this.subnet = subnet; |
| 60 | this.serviceIp = serviceIp; |
| 61 | } |
| 62 | |
| 63 | /** |
| 64 | * Returns the network ID. |
| 65 | * |
| 66 | * @return network id |
| 67 | */ |
| 68 | public NetworkId id() { |
| 69 | return id; |
| 70 | } |
| 71 | |
| 72 | /** |
| 73 | * Returns the segment ID of this network. |
| 74 | * |
| 75 | * @return segment id |
| 76 | */ |
| 77 | public SegmentId segmentId() { |
| 78 | return segmentId; |
| 79 | } |
| 80 | |
| 81 | /** |
| 82 | * Returns the subnet used in this network. |
| 83 | * |
| 84 | * @return subnet |
| 85 | */ |
| 86 | public IpPrefix subnet() { |
| 87 | return subnet; |
| 88 | } |
| 89 | |
| 90 | /** |
| 91 | * Returns the service IP address of this network. |
| 92 | * |
| 93 | * @return ip address |
| 94 | */ |
| 95 | public IpAddress serviceIp() { |
| 96 | return serviceIp; |
| 97 | } |
| 98 | |
| 99 | @Override |
| 100 | public boolean equals(Object obj) { |
| 101 | if (this == obj) { |
| 102 | return true; |
| 103 | } |
| 104 | |
| 105 | if (obj instanceof VtnNetwork) { |
| 106 | VtnNetwork that = (VtnNetwork) obj; |
| 107 | if (Objects.equals(id, that.id) && |
| 108 | Objects.equals(segmentId, that.segmentId) && |
| 109 | Objects.equals(subnet, that.subnet) && |
| 110 | Objects.equals(serviceIp, that.serviceIp) && |
| 111 | Objects.equals(type, that.type) && |
| 112 | Objects.equals(providers, that.providers)) { |
| 113 | return true; |
| 114 | } |
| 115 | } |
| 116 | return false; |
| 117 | } |
| 118 | |
| 119 | @Override |
| 120 | public int hashCode() { |
| 121 | return Objects.hash(id, segmentId, subnet, serviceIp, type, providers); |
| 122 | } |
| 123 | |
| 124 | @Override |
| 125 | public String toString() { |
| 126 | return MoreObjects.toStringHelper(getClass()) |
| 127 | .add("id", id) |
| 128 | .add("segmentId", segmentId) |
| 129 | .add("subnet", subnet) |
| 130 | .add("serviceIp", serviceIp) |
| 131 | .add("type", type) |
| 132 | .add("providers", providers) |
| 133 | .toString(); |
| 134 | } |
| 135 | |
| 136 | /** |
| 137 | * Returns immutable VTN network with the supplied Neutron network, subnet, |
| 138 | * and additional service network information. |
| 139 | * |
| 140 | * @param network neutron network |
| 141 | * @param subnet neutron subnet |
| 142 | * @param serviceNet service network |
| 143 | * @return vtn network |
| 144 | */ |
| 145 | public static VtnNetwork of(Network network, Subnet subnet, ServiceNetwork serviceNet) { |
| 146 | validateNeutronNetwork(network, subnet); |
| 147 | if (serviceNet != null) { |
| 148 | checkArgument(Objects.equals(network.getId(), serviceNet.id().id())); |
| 149 | } |
| 150 | |
| 151 | return builder().id(NetworkId.of(network.getId())) |
| 152 | .segmentId(SegmentId.of(Long.valueOf(network.getProviderSegID()))) |
| 153 | .subnet(IpPrefix.valueOf(subnet.getCidr())) |
| 154 | .serviceIp(IpAddress.valueOf(subnet.getGateway())) |
| 155 | .type(serviceNet == null ? PRIVATE : serviceNet.type()) |
| 156 | .providers(serviceNet == null ? ImmutableSet.of() : serviceNet.providers()) |
| 157 | .build(); |
| 158 | } |
| 159 | |
| 160 | private static void validateNeutronNetwork(Network network, Subnet subnet) { |
| 161 | checkNotNull(network); |
| 162 | checkNotNull(subnet); |
| 163 | checkArgument(Objects.equals(network.getId(), subnet.getNetworkId())); |
| 164 | checkArgument(!Strings.isNullOrEmpty(network.getProviderSegID()), ERR_SEGMENT_ID_MISSING); |
| 165 | checkArgument(!Strings.isNullOrEmpty(subnet.getGateway()), ERR_GATEWAY_IP_MISSING); |
| 166 | } |
| 167 | |
| 168 | /** |
| 169 | * Returns new vtn network builder instance. |
| 170 | * |
| 171 | * @return vtn network builder |
| 172 | */ |
| 173 | public static Builder builder() { |
| 174 | return new Builder(); |
| 175 | } |
| 176 | |
| 177 | /** |
| 178 | * Returns new vtn network builder instance with copy of the given vtn network. |
| 179 | * |
| 180 | * @param vtnNet vtn network |
| 181 | * @return vtn network builder |
| 182 | */ |
| 183 | public static Builder builder(VtnNetwork vtnNet) { |
| 184 | return new Builder() |
| 185 | .id(vtnNet.id()) |
| 186 | .segmentId(vtnNet.segmentId()) |
| 187 | .subnet(vtnNet.subnet()) |
| 188 | .serviceIp(vtnNet.serviceIp()) |
| 189 | .type(vtnNet.type()) |
| 190 | .providers(vtnNet.providers()); |
| 191 | } |
| 192 | |
| 193 | /** |
| 194 | * Builder of the vtn network entities. |
| 195 | */ |
| 196 | public static final class Builder { |
| 197 | private NetworkId id; |
| 198 | private SegmentId segmentId; |
| 199 | private IpPrefix subnet; |
| 200 | private IpAddress serviceIp; |
| 201 | private ServiceNetworkType type; |
| 202 | private Set<ProviderNetwork> providers = ImmutableSet.of(); |
| 203 | |
| 204 | private Builder() { |
| 205 | } |
| 206 | |
| 207 | /** |
| 208 | * Builds an immutable vtn network. |
| 209 | * |
| 210 | * @return vtn network instance |
| 211 | */ |
| 212 | public VtnNetwork build() { |
| 213 | checkNotNull(id, "VTN network id cannot be null"); |
| 214 | checkNotNull(segmentId, "VTN network segment id cannot be null"); |
| 215 | checkNotNull(subnet, "VTN network subnet cannot be null"); |
| 216 | checkNotNull(serviceIp, "VTN network service IP cannot be null"); |
| 217 | checkNotNull(type, "VTN network type cannot be null"); |
| 218 | providers = providers == null ? ImmutableSet.of() : providers; |
| 219 | |
| 220 | return new VtnNetwork(id, segmentId, subnet, serviceIp, type, providers); |
| 221 | } |
| 222 | |
| 223 | /** |
| 224 | * Returns vtn network builder with the supplied network ID. |
| 225 | * |
| 226 | * @param id network id |
| 227 | * @return vtn network builder |
| 228 | */ |
| 229 | public Builder id(NetworkId id) { |
| 230 | this.id = id; |
| 231 | return this; |
| 232 | } |
| 233 | |
| 234 | /** |
| 235 | * Returns vtn network builder with the supplied segment ID. |
| 236 | * |
| 237 | * @param segmentId segment id |
| 238 | * @return vtn network builder |
| 239 | */ |
| 240 | public Builder segmentId(SegmentId segmentId) { |
| 241 | this.segmentId = segmentId; |
| 242 | return this; |
| 243 | } |
| 244 | |
| 245 | /** |
| 246 | * Returns vtn network builder with the supplied subnet. |
| 247 | * |
| 248 | * @param subnet subnet |
| 249 | * @return vtn network builder |
| 250 | */ |
| 251 | public Builder subnet(IpPrefix subnet) { |
| 252 | this.subnet = subnet; |
| 253 | return this; |
| 254 | } |
| 255 | |
| 256 | /** |
| 257 | * Returns vtn network service IP address. |
| 258 | * |
| 259 | * @param serviceIp service ip address |
| 260 | * @return vtn network builder |
| 261 | */ |
| 262 | public Builder serviceIp(IpAddress serviceIp) { |
| 263 | this.serviceIp = serviceIp; |
| 264 | return this; |
| 265 | } |
| 266 | |
| 267 | /** |
| 268 | * Returns vtn network builder with the supplied service network type. |
| 269 | * |
| 270 | * @param type service network type |
| 271 | * @return vtn network builder |
| 272 | */ |
| 273 | public Builder type(ServiceNetworkType type) { |
| 274 | this.type = type; |
| 275 | return this; |
| 276 | } |
| 277 | |
| 278 | /** |
| 279 | * Returns vtn network builder with the supplied provider service networks. |
| 280 | * |
| 281 | * @param providers provider service networks |
| 282 | * @return vtn network builder |
| 283 | */ |
| 284 | public Builder providers(Set<ProviderNetwork> providers) { |
| 285 | this.providers = providers; |
| 286 | return this; |
| 287 | } |
| 288 | |
| 289 | /** |
| 290 | * Returns vtn network builder with the given additional provider network. |
| 291 | * |
| 292 | * @param providerId provider network id |
| 293 | * @param type direct access type to the provider network |
| 294 | * @return vtn network builder |
| 295 | */ |
| 296 | public Builder addProvider(NetworkId providerId, Dependency.Type type) { |
| 297 | checkNotNull(providerId, "Provider network ID cannot be null"); |
| 298 | checkNotNull(type, "Provider network type cannot be null"); |
| 299 | |
| 300 | Set<ProviderNetwork> updated = Sets.newHashSet(this.providers); |
| 301 | updated.add(ProviderNetwork.of(providerId, type)); |
| 302 | this.providers = ImmutableSet.copyOf(updated); |
| 303 | return this; |
| 304 | } |
| 305 | |
| 306 | /** |
| 307 | * Returns vtn network builder without the given provider network. |
| 308 | * |
| 309 | * @param providerId provider network id |
| 310 | * @return vtn network builder |
| 311 | */ |
| 312 | public Builder delProvider(NetworkId providerId) { |
| 313 | checkNotNull(providerId, "Provider network ID cannot be null"); |
| 314 | |
| 315 | ProviderNetwork provider = this.providers.stream() |
| 316 | .filter(p -> Objects.equals(p.id(), providerId)) |
| 317 | .findAny().orElse(null); |
| 318 | if (provider != null) { |
| 319 | Set<ProviderNetwork> updated = Sets.newHashSet(this.providers); |
| 320 | updated.remove(provider); |
| 321 | this.providers = ImmutableSet.copyOf(updated); |
| 322 | } |
| 323 | return this; |
| 324 | } |
| 325 | } |
| 326 | } |