Andrea Campanella | a9cdaf6 | 2019-09-08 10:30:16 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2019-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 | package org.onosproject.drivers.odtn; |
| 19 | |
| 20 | import org.apache.commons.configuration.HierarchicalConfiguration; |
| 21 | import org.apache.commons.configuration.XMLConfiguration; |
| 22 | import org.apache.commons.configuration.tree.xpath.XPathExpressionEngine; |
| 23 | import org.onlab.osgi.DefaultServiceDirectory; |
| 24 | import org.onosproject.drivers.utilities.XmlConfigParser; |
| 25 | import org.onosproject.net.DeviceId; |
| 26 | import org.onosproject.net.ModulationScheme; |
| 27 | import org.onosproject.net.PortNumber; |
| 28 | import org.onosproject.net.behaviour.ModulationConfig; |
| 29 | import org.onosproject.net.device.DeviceService; |
| 30 | import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| 31 | import org.onosproject.netconf.DatastoreId; |
| 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 | import org.slf4j.LoggerFactory; |
| 38 | |
| 39 | import java.util.Optional; |
| 40 | import java.util.concurrent.CompletableFuture; |
| 41 | import java.util.concurrent.ExecutionException; |
| 42 | import java.util.regex.Matcher; |
| 43 | import java.util.regex.Pattern; |
| 44 | |
| 45 | import static com.google.common.base.Preconditions.checkNotNull; |
| 46 | |
| 47 | /* |
| 48 | * Driver Implementation of the ModulationConfig for OcNos standard open config based terminal devices. |
| 49 | */ |
| 50 | public class GrooveModulationOpenConfig<T> extends AbstractHandlerBehaviour implements ModulationConfig<T> { |
| 51 | |
| 52 | |
| 53 | private static final String RPC_TAG_NETCONF_BASE = |
| 54 | "<rpc xmlns=\"urn:ietf:params:xml:ns:netconf:base:1.0\">"; |
| 55 | |
| 56 | private static final String RPC_CLOSE_TAG = "</rpc>"; |
| 57 | |
| 58 | private static final Logger log = LoggerFactory.getLogger(GrooveModulationOpenConfig.class); |
| 59 | |
| 60 | private ComponentType state = ComponentType.DIRECTION; |
| 61 | |
| 62 | |
| 63 | enum BitRate { |
| 64 | GBPS_200(200), // 200 Gbps |
| 65 | GBPS_100(100), // 100 Gbps |
| 66 | GBPS_40(40), // 40 Gbps |
| 67 | GBPS_10(10); // 10 Gbps |
| 68 | |
| 69 | private final long value; |
| 70 | |
| 71 | public long getValue() { |
| 72 | return value; |
| 73 | } |
| 74 | |
| 75 | BitRate(long value) { |
| 76 | this.value = value; |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * Returns the NetconfSession with the device for which the method was called. |
| 82 | * |
| 83 | * @param deviceId device indetifier |
| 84 | * @return The netconf session or null |
| 85 | */ |
| 86 | |
| 87 | |
| 88 | private NetconfSession getNetconfSession(DeviceId deviceId) { |
| 89 | log.info("Inside getNetconfSession () method for device : {}", deviceId); |
| 90 | NetconfController controller = handler().get(NetconfController.class); |
| 91 | NetconfDevice ncdev = controller.getDevicesMap().get(deviceId); |
| 92 | if (ncdev == null) { |
| 93 | log.trace("No netconf device, returning null session"); |
| 94 | return null; |
| 95 | } |
| 96 | return ncdev.getSession(); |
| 97 | } |
| 98 | |
| 99 | /* |
| 100 | * |
| 101 | * Get the deviceId for which the methods apply. |
| 102 | * |
| 103 | * @return The deviceId as contained in the handler data |
| 104 | */ |
| 105 | |
| 106 | |
| 107 | private DeviceId did() { |
| 108 | return handler().data().deviceId(); |
| 109 | } |
| 110 | |
| 111 | /** |
| 112 | * Execute RPC request. |
| 113 | * |
| 114 | * @param session Netconf session |
| 115 | * @param message Netconf message in XML format |
| 116 | * @return XMLConfiguration object |
| 117 | */ |
| 118 | |
| 119 | private XMLConfiguration executeRpc(NetconfSession session, String message) { |
| 120 | try { |
| 121 | CompletableFuture<String> fut = session.rpc(message); |
| 122 | String rpcReply = fut.get(); |
| 123 | XMLConfiguration xconf = (XMLConfiguration) XmlConfigParser.loadXmlString(rpcReply); |
| 124 | xconf.setExpressionEngine(new XPathExpressionEngine()); |
| 125 | return xconf; |
| 126 | } catch (NetconfException ne) { |
| 127 | log.error("Exception on Netconf protocol: {}.", ne); |
| 128 | } catch (InterruptedException ie) { |
| 129 | log.error("Interrupted Exception: {}.", ie); |
| 130 | } catch (ExecutionException ee) { |
| 131 | log.error("Concurrent Exception while executing Netconf operation: {}.", ee); |
| 132 | } |
| 133 | return null; |
| 134 | } |
| 135 | |
| 136 | /** |
| 137 | * Get the target Modulation Scheme on the component. |
| 138 | * |
| 139 | * @param port the port |
| 140 | * @param component the port component |
| 141 | * @return ModulationScheme as per bitRate value |
| 142 | **/ |
| 143 | @Override |
| 144 | public Optional<ModulationScheme> getModulationScheme(PortNumber port, T component) { |
| 145 | checkState(component); |
| 146 | return state.getModulationScheme(port, component); |
| 147 | } |
| 148 | |
| 149 | /** |
| 150 | * Set the target Modulation Scheme on the component. |
| 151 | * |
| 152 | * @param port the port |
| 153 | * @param component the port component |
| 154 | * @param bitRate bit rate in bps |
| 155 | **/ |
| 156 | @Override |
| 157 | public void setModulationScheme(PortNumber port, T component, long bitRate) { |
| 158 | checkState(component); |
| 159 | state.setModulationScheme(port, component, bitRate); |
| 160 | } |
| 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 | |
| 182 | state.groove = this; |
| 183 | log.info("Setting the state with clsName :{} ", clsName); |
| 184 | } |
| 185 | |
| 186 | /* |
| 187 | * |
| 188 | * Component type. |
| 189 | */ |
| 190 | enum ComponentType { |
| 191 | |
| 192 | /* |
| 193 | * |
| 194 | * Direction. |
| 195 | */ |
| 196 | DIRECTION() { |
| 197 | @Override |
| 198 | Optional<ModulationScheme> getModulationScheme(PortNumber port, Object component) { |
| 199 | return super.getModulationScheme(port, component); |
| 200 | } |
| 201 | |
| 202 | @Override |
| 203 | void setModulationScheme(PortNumber port, Object component, long bitRate) { |
| 204 | log.info("Inside the enum setModulationScheme()"); |
| 205 | super.setModulationScheme(port, component, bitRate); |
| 206 | } |
| 207 | }, |
| 208 | |
| 209 | /** |
| 210 | * OchSignal. |
| 211 | */ |
| 212 | OCHSIGNAL() { |
| 213 | @Override |
| 214 | Optional<ModulationScheme> getModulationScheme(PortNumber port, Object component) { |
| 215 | return super.getModulationScheme(port, component); |
| 216 | } |
| 217 | |
| 218 | @Override |
| 219 | void setModulationScheme(PortNumber port, Object component, long bitRate) { |
| 220 | super.setModulationScheme(port, component, bitRate); |
| 221 | } |
| 222 | }; |
| 223 | |
| 224 | |
| 225 | GrooveModulationOpenConfig groove; |
| 226 | |
| 227 | /* |
| 228 | * mirror method in the internal class. |
| 229 | * @param port port |
| 230 | * @param component component |
| 231 | * @return target modulation |
| 232 | */ |
| 233 | Optional<ModulationScheme> getModulationScheme(PortNumber port, Object component) { |
| 234 | NetconfSession session = groove.getNetconfSession(groove.did()); |
| 235 | checkNotNull(session); |
| 236 | String filter = createModulationFilter(groove, port); |
| 237 | StringBuilder rpcReq = new StringBuilder(); |
| 238 | rpcReq.append(RPC_TAG_NETCONF_BASE) |
| 239 | .append("<get-config>") |
| 240 | .append("<source>") |
| 241 | .append("<" + DatastoreId.RUNNING + "/>") |
| 242 | .append("</source>") |
| 243 | .append("<filter type='subtree'>") |
| 244 | .append(filter) |
| 245 | .append("</filter>") |
| 246 | .append("</get-config>") |
| 247 | .append(RPC_CLOSE_TAG); |
| 248 | XMLConfiguration xconf = groove.executeRpc(session, rpcReq.toString()); |
| 249 | if (xconf == null) { |
| 250 | log.error("Error in executingRpc"); |
| 251 | return Optional.empty(); |
| 252 | } |
| 253 | try { |
| 254 | HierarchicalConfiguration config = |
| 255 | xconf.configurationAt("data/components/component/optical-channel/config"); |
| 256 | |
| 257 | String operationalMode = String.valueOf(config.getString("operational-mode")); |
| 258 | /*Used for Internal Testing */ |
| 259 | //String modulationScheme="DP16QAM"; |
| 260 | ModulationScheme modulation; |
| 261 | if (operationalMode.equalsIgnoreCase("62") || |
| 262 | operationalMode.equalsIgnoreCase("68")) { |
| 263 | modulation = ModulationScheme.DP_16QAM; |
| 264 | } else { |
| 265 | modulation = ModulationScheme.DP_QPSK; |
| 266 | } |
| 267 | return Optional.of(modulation); |
| 268 | } catch (IllegalArgumentException e) { |
| 269 | log.error("Error in parsing config", e); |
| 270 | return Optional.empty(); |
| 271 | } |
| 272 | } |
| 273 | |
| 274 | /* |
| 275 | * mirror method in the internal class. |
| 276 | * @param port port |
| 277 | * @param component component |
| 278 | * @param power target value |
| 279 | */ |
| 280 | void setModulationScheme(PortNumber port, Object component, long bitRate) { |
| 281 | |
| 282 | ModulationScheme modulation = null; |
| 283 | if (bitRate <= BitRate.GBPS_100.value) { |
| 284 | modulation = ModulationScheme.DP_QPSK; |
| 285 | } else { |
| 286 | modulation = ModulationScheme.DP_16QAM; |
| 287 | |
| 288 | } |
| 289 | // TODO: Groove doesn't support to change the modulation format via OpenConfig directly |
| 290 | // without recommissioning the Optical Channel |
| 291 | // Workaround: use Groove native model via port-mode change |
| 292 | // String editConfig = modulationEditConfig(groove, port, component, bitRate, modulation.name()); |
| 293 | String editConfig = groovePortModeEditConfig(groove, port, component, bitRate, modulation.name()); |
| 294 | |
| 295 | //setting the modulation by calling rpc |
| 296 | setModulationRpc(port, component, editConfig); |
| 297 | |
| 298 | } |
| 299 | |
| 300 | private static String createModulationFilter(GrooveModulationOpenConfig modulationConfig, |
| 301 | PortNumber portNumber) { |
| 302 | String name = ocName(modulationConfig, portNumber); |
| 303 | StringBuilder sb = new StringBuilder("<components xmlns=\"http://openconfig.net/yang/platform\">"); |
| 304 | sb.append("<component>").append("<name>").append(name).append("</name>"); |
| 305 | sb.append("</component>").append("</components>"); |
| 306 | return sb.toString(); |
| 307 | } |
| 308 | |
| 309 | /** |
| 310 | * Extract component name from portNumber's annotations. |
| 311 | * |
| 312 | * @param pc modulation config instance |
| 313 | * @param portNumber the port number |
| 314 | * @return the component name |
| 315 | */ |
| 316 | |
| 317 | |
| 318 | private static String ocName(GrooveModulationOpenConfig pc, PortNumber portNumber) { |
| 319 | DeviceService deviceService = DefaultServiceDirectory.getService(DeviceService.class); |
| 320 | DeviceId deviceId = pc.handler().data().deviceId(); |
| 321 | return deviceService.getPort(deviceId, portNumber).annotations().value("oc-name"); |
| 322 | } |
| 323 | |
| 324 | /* |
| 325 | * |
| 326 | * Parse filtering string from port and component. |
| 327 | * @param portNumber Port Number |
| 328 | * @param component port component (optical-channel) |
| 329 | * @param bitRate bitRate in bps |
| 330 | * @return filtering string in xml format |
| 331 | */ |
| 332 | private String modulationEditConfig(GrooveModulationOpenConfig modulationConfig, PortNumber portNumber, |
| 333 | Object component, long bitRate, String modulation) { |
| 334 | /* |
| 335 | <components xmlns="http://openconfig.net/yang/platform"> |
| 336 | <component> |
| 337 | <name>oc1/0</name> |
| 338 | <config> |
| 339 | <name>oc1/0</name> |
| 340 | </config> |
| 341 | <optical-channel xmlns="http://openconfig.net/yang/terminal-device"> |
| 342 | <config> |
| 343 | <operational-mode>62</operational-mode> |
| 344 | </config> |
| 345 | </optical-channel> |
| 346 | </component> |
| 347 | </components> |
| 348 | */ |
| 349 | String operationalMode = convertToGrooveOperationalMode(modulation); |
| 350 | if (component != null) { |
| 351 | // This is an edit-config operation. |
| 352 | String portName = ocName(modulationConfig, portNumber); //oc1/0 |
| 353 | StringBuilder sb = new StringBuilder("<components xmlns=\"http://openconfig.net/yang/platform\">"); |
| 354 | sb.append("<component>"); |
| 355 | sb.append("<name>").append(portName).append("</name>"); |
| 356 | sb.append("<config>"); |
| 357 | sb.append("<name>").append(portName).append("</name>"); |
| 358 | sb.append("</config>"); |
| 359 | sb.append("<optical-channel xmlns=\"http://openconfig.net/yang/terminal-device\">") |
| 360 | .append("<config>") |
| 361 | .append("<operational-mode>") |
| 362 | .append(operationalMode) |
| 363 | .append("</operational-mode>") |
| 364 | .append("</config>") |
| 365 | .append("</optical-channel>"); |
| 366 | sb.append("</component>"); |
| 367 | sb.append("</components>"); |
| 368 | return sb.toString(); |
| 369 | } else { |
| 370 | log.error("Cannot process the component {}.", component.getClass()); |
| 371 | return null; |
| 372 | } |
| 373 | } |
| 374 | |
| 375 | /* |
| 376 | * |
| 377 | * Parse filtering string from port and component. |
| 378 | * @param portNumber Port Number |
| 379 | * @param component port component (optical-channel) |
| 380 | * @param bitRate bitRate in bps |
| 381 | * @return filtering string in xml format |
| 382 | */ |
| 383 | private String groovePortModeEditConfig(GrooveModulationOpenConfig modulationConfig, PortNumber portNumber, |
| 384 | Object component, long bitRate, String modulation) { |
| 385 | if (component != null) { |
| 386 | // This is an edit-config operation. |
| 387 | String portMode = modulation.equals("DP_QPSK") ? "QPSK_100G" : "16QAM_200G"; |
| 388 | String portName = ocName(modulationConfig, portNumber); |
| 389 | Pattern portPattern = Pattern.compile(".*-[1]-[1-9][0-4]?-L[1-2]$"); // e.g. TRANSCEIVER-1-1-L1 |
| 390 | Matcher lineMatch = portPattern.matcher(portName); |
| 391 | lineMatch.find(); |
| 392 | final String[] split = lineMatch.group(0).split("-"); |
| 393 | |
| 394 | return "<ne xmlns=\"http://coriant.com/yang/os/ne\">" + |
| 395 | " <shelf>" + |
| 396 | " <shelf-id>" + split[1] + "</shelf-id>" + |
| 397 | " <slot>" + |
| 398 | " <slot-id>" + split[2] + "</slot-id>" + |
| 399 | " <card>" + |
| 400 | " <port>" + |
| 401 | " <port-id>" + split[3].replace("L", "") + "</port-id>" + |
| 402 | " <port-mode>" + portMode + "</port-mode>" + |
| 403 | " </port>" + |
| 404 | " </card>" + |
| 405 | " </slot>" + |
| 406 | " </shelf>" + |
| 407 | " </ne>"; |
| 408 | } else { |
| 409 | log.error("Cannot process the component {}.", component.getClass()); |
| 410 | return null; |
| 411 | } |
| 412 | } |
| 413 | |
| 414 | |
| 415 | private String convertToGrooveOperationalMode(String modulation) { |
| 416 | if (modulation.equals(ModulationScheme.DP_QPSK.name())) { |
| 417 | return "22"; // Symbol rate 100G; modulation DP-QPSK; FEC mode SDFEC25 |
| 418 | } else { |
| 419 | return "62"; // Symbol rate 200G; modulation DP-16QAM; FEC mode SDFEC25 |
| 420 | } |
| 421 | } |
| 422 | |
| 423 | private boolean setModulationRpc(PortNumber port, Object component, String editConfig) { |
| 424 | // NOTE: this doesn't work in current Groove version. |
| 425 | NetconfSession session = groove.getNetconfSession(groove.did()); |
| 426 | checkNotNull(session); |
| 427 | boolean response = true; |
| 428 | StringBuilder rpcReq = new StringBuilder(); |
| 429 | rpcReq.append(RPC_TAG_NETCONF_BASE) |
| 430 | .append("<edit-config>") |
| 431 | .append("<target><" + DatastoreId.RUNNING + "/></target>") |
| 432 | .append("<config>") |
| 433 | .append(editConfig) |
| 434 | .append("</config>") |
| 435 | .append("</edit-config>") |
| 436 | .append(RPC_CLOSE_TAG); |
| 437 | log.info("RPC call for Setting Modulation : {}", rpcReq.toString()); |
| 438 | XMLConfiguration xconf = groove.executeRpc(session, rpcReq.toString()); |
| 439 | if (xconf == null) { |
| 440 | log.error("The <edit-config> operation to set target-modulation of Port({}:{}) is failed.", |
| 441 | port.toString(), component.toString()); |
| 442 | } else if (!xconf.getRoot().getChild(0).getName().equals("ok")) { |
| 443 | // The successful reply should be "<rpc-reply ...><ok /></rpc-reply>" |
| 444 | response = false; |
| 445 | log.error("The <edit-config> operation to set target-modulation of Port({}:{}) is failed.", |
| 446 | port.toString(), component.toString()); |
| 447 | } |
| 448 | return response; |
| 449 | } |
| 450 | } |
| 451 | } |