Andrea Campanella | 3a36145 | 2019-08-02 10:17:53 +0200 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2018-present Open Networking Foundation |
| 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 | * |
| 16 | * This work was partially supported by EC H2020 project METRO-HAUL (761727). |
| 17 | */ |
| 18 | |
| 19 | package org.onosproject.drivers.odtn; |
| 20 | |
| 21 | import com.google.common.collect.Range; |
| 22 | import org.apache.commons.configuration.HierarchicalConfiguration; |
| 23 | import org.apache.commons.configuration.XMLConfiguration; |
| 24 | import org.apache.commons.configuration.tree.xpath.XPathExpressionEngine; |
| 25 | import org.onlab.osgi.DefaultServiceDirectory; |
| 26 | import org.onosproject.drivers.utilities.XmlConfigParser; |
| 27 | import org.onosproject.net.DeviceId; |
| 28 | import org.onosproject.net.PortNumber; |
| 29 | import org.onosproject.net.behaviour.PowerConfig; |
| 30 | import org.onosproject.net.device.DeviceService; |
| 31 | import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| 32 | import org.onosproject.netconf.NetconfController; |
| 33 | import org.onosproject.netconf.NetconfDevice; |
| 34 | import org.onosproject.netconf.NetconfException; |
| 35 | import org.onosproject.netconf.NetconfSession; |
| 36 | import org.slf4j.Logger; |
| 37 | |
| 38 | import java.util.ArrayList; |
| 39 | import java.util.List; |
| 40 | import java.util.Optional; |
| 41 | import java.util.concurrent.CompletableFuture; |
| 42 | import java.util.concurrent.ExecutionException; |
| 43 | |
| 44 | import static com.google.common.base.Preconditions.checkNotNull; |
| 45 | import static org.slf4j.LoggerFactory.getLogger; |
| 46 | |
| 47 | /** |
| 48 | * Driver Implementation of the PowerConfig for OpenConfig terminal devices. |
| 49 | * |
| 50 | */ |
| 51 | public class CassiniTerminalDevicePowerConfigExt<T> |
| 52 | extends AbstractHandlerBehaviour implements PowerConfig<T> { |
| 53 | |
| 54 | private static final String RPC_TAG_NETCONF_BASE = |
| 55 | "<rpc xmlns=\"urn:ietf:params:xml:ns:netconf:base:1.0\">"; |
| 56 | |
| 57 | private static final String RPC_CLOSE_TAG = "</rpc>"; |
| 58 | |
| 59 | private static final long NO_POWER = -50; |
| 60 | |
| 61 | private static final Logger log = getLogger(CassiniTerminalDevicePowerConfigExt.class); |
| 62 | |
| 63 | private ComponentType state = ComponentType.DIRECTION; |
| 64 | |
| 65 | /** |
| 66 | * Returns the NetconfSession with the device for which the method was called. |
| 67 | * |
| 68 | * @param deviceId device indetifier |
| 69 | * |
| 70 | * @return The netconf session or null |
| 71 | */ |
| 72 | private NetconfSession getNetconfSession(DeviceId deviceId) { |
| 73 | NetconfController controller = handler().get(NetconfController.class); |
| 74 | NetconfDevice ncdev = controller.getDevicesMap().get(deviceId); |
| 75 | if (ncdev == null) { |
| 76 | log.trace("No netconf device, returning null session"); |
| 77 | return null; |
| 78 | } |
| 79 | return ncdev.getSession(); |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * Get the deviceId for which the methods apply. |
| 84 | * |
| 85 | * @return The deviceId as contained in the handler data |
| 86 | */ |
| 87 | private DeviceId did() { |
| 88 | return handler().data().deviceId(); |
| 89 | } |
| 90 | |
| 91 | /** |
| 92 | * Execute RPC request. |
| 93 | * @param session Netconf session |
| 94 | * @param message Netconf message in XML format |
| 95 | * @return XMLConfiguration object |
| 96 | */ |
| 97 | private XMLConfiguration executeRpc(NetconfSession session, String message) { |
| 98 | try { |
| 99 | CompletableFuture<String> fut = session.rpc(message); |
| 100 | String rpcReply = fut.get(); |
| 101 | XMLConfiguration xconf = (XMLConfiguration) XmlConfigParser.loadXmlString(rpcReply); |
| 102 | xconf.setExpressionEngine(new XPathExpressionEngine()); |
| 103 | return xconf; |
| 104 | } catch (NetconfException ne) { |
| 105 | log.error("Exception on Netconf protocol: {}.", ne); |
| 106 | } catch (InterruptedException ie) { |
| 107 | log.error("Interrupted Exception: {}.", ie); |
| 108 | } catch (ExecutionException ee) { |
| 109 | log.error("Concurrent Exception while executing Netconf operation: {}.", ee); |
| 110 | } |
| 111 | return null; |
| 112 | } |
| 113 | |
| 114 | /** |
| 115 | * Get the target-output-power value on specific optical-channel. |
| 116 | * @param port the port |
| 117 | * @param component the port component. It should be 'oc-name' in the Annotations of Port. |
| 118 | * 'oc-name' could be mapped to '/component/name' in openconfig yang. |
| 119 | * @return target power value |
| 120 | */ |
| 121 | @Override |
| 122 | public Optional<Long> getTargetPower(PortNumber port, T component) { |
| 123 | checkState(component); |
| 124 | return state.getTargetPower(port, component); |
| 125 | } |
| 126 | |
| 127 | @Override |
| 128 | public void setTargetPower(PortNumber port, T component, long power) { |
| 129 | checkState(component); |
| 130 | state.setTargetPower(port, component, power); |
| 131 | } |
| 132 | |
| 133 | @Override |
| 134 | public Optional<Long> currentPower(PortNumber port, T component) { |
| 135 | checkState(component); |
| 136 | return state.currentPower(port, component); |
| 137 | } |
| 138 | |
| 139 | @Override |
| 140 | public Optional<Long> currentInputPower(PortNumber port, T component) { |
| 141 | checkState(component); |
| 142 | return state.currentInputPower(port, component); |
| 143 | } |
| 144 | |
| 145 | @Override |
| 146 | public Optional<Range<Long>> getTargetPowerRange(PortNumber port, T component) { |
| 147 | checkState(component); |
| 148 | return state.getTargetPowerRange(port, component); |
| 149 | } |
| 150 | |
| 151 | @Override |
| 152 | public Optional<Range<Long>> getInputPowerRange(PortNumber port, T component) { |
| 153 | checkState(component); |
| 154 | return state.getInputPowerRange(port, component); |
| 155 | } |
| 156 | |
| 157 | @Override |
| 158 | public List<PortNumber> getPorts(T component) { |
| 159 | checkState(component); |
| 160 | return state.getPorts(component); |
| 161 | } |
| 162 | |
| 163 | |
| 164 | /** |
| 165 | * Set the ComponentType to invoke proper methods for different template T. |
| 166 | * @param component the component. |
| 167 | */ |
| 168 | void checkState(Object component) { |
| 169 | String clsName = component.getClass().getName(); |
| 170 | switch (clsName) { |
| 171 | case "org.onosproject.net.Direction": |
| 172 | state = ComponentType.DIRECTION; |
| 173 | break; |
| 174 | case "org.onosproject.net.OchSignal": |
| 175 | state = ComponentType.OCHSIGNAL; |
| 176 | break; |
| 177 | default: |
| 178 | log.error("Cannot parse the component type {}.", clsName); |
| 179 | log.info("The component content is {}.", component.toString()); |
| 180 | } |
| 181 | state.cassini = this; |
| 182 | } |
| 183 | |
| 184 | /** |
| 185 | * Component type. |
| 186 | */ |
| 187 | enum ComponentType { |
| 188 | |
| 189 | /** |
| 190 | * Direction. |
| 191 | */ |
| 192 | DIRECTION() { |
| 193 | @Override |
| 194 | public Optional<Long> getTargetPower(PortNumber port, Object component) { |
| 195 | return super.getTargetPower(port, component); |
| 196 | } |
| 197 | @Override |
| 198 | public void setTargetPower(PortNumber port, Object component, long power) { |
| 199 | super.setTargetPower(port, component, power); |
| 200 | } |
| 201 | }, |
| 202 | |
| 203 | /** |
| 204 | * OchSignal. |
| 205 | */ |
| 206 | OCHSIGNAL() { |
| 207 | @Override |
| 208 | public Optional<Long> getTargetPower(PortNumber port, Object component) { |
| 209 | return super.getTargetPower(port, component); |
| 210 | } |
| 211 | |
| 212 | @Override |
| 213 | public void setTargetPower(PortNumber port, Object component, long power) { |
| 214 | super.setTargetPower(port, component, power); |
| 215 | } |
| 216 | }; |
| 217 | |
| 218 | |
| 219 | |
| 220 | CassiniTerminalDevicePowerConfigExt cassini; |
| 221 | |
| 222 | /** |
| 223 | * mirror method in the internal class. |
| 224 | * @param port port |
| 225 | * @param component component |
| 226 | * @return target power |
| 227 | */ |
| 228 | Optional<Long> getTargetPower(PortNumber port, Object component) { |
| 229 | NetconfSession session = cassini.getNetconfSession(cassini.did()); |
| 230 | checkNotNull(session); |
| 231 | String filter = parsePort(cassini, port, null, null); |
| 232 | StringBuilder rpcReq = new StringBuilder(); |
| 233 | rpcReq.append(RPC_TAG_NETCONF_BASE) |
| 234 | .append("<get>") |
| 235 | .append("<filter type='subtree'>") |
| 236 | .append(filter) |
| 237 | .append("</filter>") |
| 238 | .append("</get>") |
| 239 | .append(RPC_CLOSE_TAG); |
| 240 | XMLConfiguration xconf = cassini.executeRpc(session, rpcReq.toString()); |
| 241 | try { |
| 242 | HierarchicalConfiguration config = |
| 243 | xconf.configurationAt("data/components/component/optical-channel/config"); |
| 244 | long power = Float.valueOf(config.getString("target-output-power")).longValue(); |
| 245 | return Optional.of(power); |
| 246 | } catch (IllegalArgumentException e) { |
| 247 | return Optional.empty(); |
| 248 | } |
| 249 | } |
| 250 | |
| 251 | /** |
| 252 | * mirror method in the internal class. |
| 253 | * @param port port |
| 254 | * @param component component |
| 255 | * @param power target value |
| 256 | */ |
| 257 | void setTargetPower(PortNumber port, Object component, long power) { |
| 258 | NetconfSession session = cassini.getNetconfSession(cassini.did()); |
| 259 | checkNotNull(session); |
| 260 | String editConfig = parsePort(cassini, port, null, power); |
| 261 | StringBuilder rpcReq = new StringBuilder(); |
| 262 | rpcReq.append(RPC_TAG_NETCONF_BASE) |
| 263 | .append("<edit-config>") |
| 264 | .append("<target><running/></target>") |
| 265 | .append("<config>") |
| 266 | .append(editConfig) |
| 267 | .append("</config>") |
| 268 | .append("</edit-config>") |
| 269 | .append(RPC_CLOSE_TAG); |
| 270 | XMLConfiguration xconf = cassini.executeRpc(session, rpcReq.toString()); |
| 271 | // The successful reply should be "<rpc-reply ...><ok /></rpc-reply>" |
| 272 | if (!xconf.getRoot().getChild(0).getName().equals("ok")) { |
| 273 | log.error("The <edit-config> operation to set target-output-power of Port({}:{}) is failed.", |
| 274 | port.toString(), component.toString()); |
| 275 | } |
| 276 | } |
| 277 | |
| 278 | /** |
| 279 | * mirror method in the internal class. |
| 280 | * @param port port |
| 281 | * @param component the component. |
| 282 | * @return current output power. |
| 283 | */ |
| 284 | Optional<Long> currentPower(PortNumber port, Object component) { |
| 285 | XMLConfiguration xconf = getOpticalChannelState( |
| 286 | cassini, port, "<output-power><instant/></output-power>"); |
| 287 | try { |
| 288 | HierarchicalConfiguration config = |
| 289 | xconf.configurationAt("data/components/component/optical-channel/state/output-power"); |
| 290 | long currentPower = Float.valueOf(config.getString("instant")).longValue(); |
| 291 | return Optional.of(currentPower); |
| 292 | } catch (IllegalArgumentException e) { |
| 293 | return Optional.empty(); |
| 294 | } |
| 295 | } |
| 296 | |
| 297 | /** |
| 298 | * mirror method in the internal class. |
| 299 | * @param port port |
| 300 | * @param component the component |
| 301 | * @return current input power |
| 302 | */ |
| 303 | Optional<Long> currentInputPower(PortNumber port, Object component) { |
| 304 | XMLConfiguration xconf = getOpticalChannelState( |
| 305 | cassini, port, "<input-power><instant/></input-power>"); |
| 306 | try { |
| 307 | HierarchicalConfiguration config = |
| 308 | xconf.configurationAt("data/components/component/optical-channel/state/input-power"); |
| 309 | long currentPower = Float.valueOf(config.getString("instant")).longValue(); |
| 310 | return Optional.of(currentPower); |
| 311 | } catch (IllegalArgumentException e) { |
| 312 | return Optional.empty(); |
| 313 | } |
| 314 | } |
| 315 | |
| 316 | Optional<Range<Long>> getTargetPowerRange(PortNumber port, Object component) { |
| 317 | XMLConfiguration xconf = getOpticalChannelState( |
| 318 | cassini, port, "<target-power-range/>"); |
| 319 | try { |
| 320 | HierarchicalConfiguration config = |
| 321 | xconf.configurationAt("data/components/component/optical-channel/state/target-power-range"); |
| 322 | long targetMin = Float.valueOf(config.getString("min")).longValue(); |
| 323 | long targetMax = Float.valueOf(config.getString("max")).longValue(); |
| 324 | return Optional.of(Range.open(targetMin, targetMax)); |
| 325 | } catch (IllegalArgumentException e) { |
| 326 | return Optional.empty(); |
| 327 | } |
| 328 | |
| 329 | } |
| 330 | |
| 331 | Optional<Range<Long>> getInputPowerRange(PortNumber port, Object component) { |
| 332 | XMLConfiguration xconf = getOpticalChannelState( |
| 333 | cassini, port, "<input-power-range/>"); |
| 334 | try { |
| 335 | HierarchicalConfiguration config = |
| 336 | xconf.configurationAt("data/components/component/optical-channel/state/input-power-range"); |
| 337 | long inputMin = Float.valueOf(config.getString("min")).longValue(); |
| 338 | long inputMax = Float.valueOf(config.getString("max")).longValue(); |
| 339 | return Optional.of(Range.open(inputMin, inputMax)); |
| 340 | } catch (IllegalArgumentException e) { |
| 341 | return Optional.empty(); |
| 342 | } |
| 343 | } |
| 344 | |
| 345 | List<PortNumber> getPorts(Object component) { |
| 346 | // FIXME |
| 347 | log.warn("Not Implemented Yet!"); |
| 348 | return new ArrayList<PortNumber>(); |
| 349 | } |
| 350 | |
| 351 | /** |
| 352 | * Get filtered content under <optical-channel><state>. |
| 353 | * @param pc power config instance |
| 354 | * @param port the port number |
| 355 | * @param underState the filter condition |
| 356 | * @return RPC reply |
| 357 | */ |
| 358 | private static XMLConfiguration getOpticalChannelState(CassiniTerminalDevicePowerConfigExt pc, |
| 359 | PortNumber port, String underState) { |
| 360 | NetconfSession session = pc.getNetconfSession(pc.did()); |
| 361 | checkNotNull(session); |
| 362 | String name = ocName(pc, port); |
| 363 | StringBuilder rpcReq = new StringBuilder(RPC_TAG_NETCONF_BASE); |
| 364 | rpcReq.append("<get><filter><components xmlns=\"http://openconfig.net/yang/platform\"><component>") |
| 365 | .append("<name>").append(name).append("</name>") |
| 366 | .append("<optical-channel xmlns=\"http://openconfig.net/yang/terminal-device\">") |
| 367 | .append("<state>") |
| 368 | .append(underState) |
| 369 | .append("</state></optical-channel></component></components></filter></get>") |
| 370 | .append(RPC_CLOSE_TAG); |
| 371 | XMLConfiguration xconf = pc.executeRpc(session, rpcReq.toString()); |
| 372 | return xconf; |
| 373 | } |
| 374 | |
| 375 | |
| 376 | /** |
| 377 | * Extract component name from portNumber's annotations. |
| 378 | * @param pc power config instance |
| 379 | * @param portNumber the port number |
| 380 | * @return the component name |
| 381 | */ |
| 382 | private static String ocName(CassiniTerminalDevicePowerConfigExt pc, PortNumber portNumber) { |
| 383 | DeviceService deviceService = DefaultServiceDirectory.getService(DeviceService.class); |
| 384 | DeviceId deviceId = pc.handler().data().deviceId(); |
| 385 | return deviceService.getPort(deviceId, portNumber).annotations().value("oc-name"); |
| 386 | } |
| 387 | |
| 388 | |
| 389 | |
| 390 | /** |
| 391 | * Parse filtering string from port and component. |
| 392 | * @param portNumber Port Number |
| 393 | * @param component port component (optical-channel) |
| 394 | * @param power power value set. |
| 395 | * @return filtering string in xml format |
| 396 | */ |
| 397 | private static String parsePort(CassiniTerminalDevicePowerConfigExt pc, PortNumber portNumber, |
| 398 | Object component, Long power) { |
| 399 | if (component == null) { |
| 400 | String name = ocName(pc, portNumber); |
| 401 | StringBuilder sb = new StringBuilder("<components xmlns=\"http://openconfig.net/yang/platform\">"); |
| 402 | sb.append("<component>").append("<name>").append(name).append("</name>"); |
| 403 | if (power != null) { |
| 404 | // This is an edit-config operation. |
| 405 | sb.append("<optical-channel xmlns=\"http://openconfig.net/yang/terminal-device\">") |
| 406 | .append("<config>") |
| 407 | .append("<target-output-power>") |
| 408 | .append(power) |
| 409 | .append("</target-output-power>") |
| 410 | .append("</config>") |
| 411 | .append("</optical-channel>"); |
| 412 | } |
| 413 | sb.append("</component>").append("</components>"); |
| 414 | return sb.toString(); |
| 415 | } else { |
| 416 | log.error("Cannot process the component {}.", component.getClass()); |
| 417 | return null; |
| 418 | } |
| 419 | } |
| 420 | } |
| 421 | } |