| /* |
| * Copyright 2019-present Open Networking Foundation |
| * |
| * 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.net.optical.cli; |
| |
| import com.google.common.collect.ImmutableMap; |
| import org.apache.karaf.shell.api.action.Argument; |
| import org.apache.karaf.shell.api.action.Command; |
| import org.apache.karaf.shell.api.action.Completion; |
| import org.apache.karaf.shell.api.action.lifecycle.Service; |
| import org.onosproject.cli.AbstractShellCommand; |
| import org.onosproject.cli.net.NetconfOperationCompleter; |
| import org.onosproject.cli.net.OpticalConnectPointCompleter; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.net.ChannelSpacing; |
| import org.onosproject.net.ConnectPoint; |
| import org.onosproject.net.Device; |
| import org.onosproject.net.GridType; |
| import org.onosproject.net.OchSignal; |
| import org.onosproject.net.Port; |
| import org.onosproject.net.device.DeviceService; |
| import org.onosproject.net.flow.DefaultFlowRule; |
| import org.onosproject.net.flow.DefaultTrafficSelector; |
| import org.onosproject.net.flow.DefaultTrafficTreatment; |
| import org.onosproject.net.flow.FlowRule; |
| import org.onosproject.net.flow.FlowRuleService; |
| import org.onosproject.net.flow.TrafficSelector; |
| import org.onosproject.net.flow.TrafficTreatment; |
| import org.onosproject.net.flow.instructions.Instructions; |
| import org.onosproject.net.optical.OchPort; |
| import org.onosproject.net.optical.device.OchPortHelper; |
| |
| import java.util.Map; |
| import java.util.Optional; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| /** |
| * Enable the optical channel and tune the wavelength via a flow rule based on a given Signal. |
| */ |
| @Service |
| @Command(scope = "onos", name = "wavelength-config", |
| description = "Enable the optical channel and tune the wavelength via a flow rule ") |
| public class PortWaveLengthCommand extends AbstractShellCommand { |
| |
| private static final String SIGNAL_FORMAT = "slotGranularity/channelSpacing(in GHz e.g 6.25,12.5,25,50,100)/" + |
| "spaceMultiplier/gridType(cwdm, flex, dwdm) " + "e.g 1/6.25/1/flex"; |
| |
| private static final String CH_6P25 = "6.25"; |
| private static final String CH_12P5 = "12.5"; |
| private static final String CH_25 = "25"; |
| private static final String CH_50 = "50"; |
| private static final String CH_100 = "100"; |
| private static final long BASE_FREQUENCY = 193100000; //Working in Mhz |
| |
| private static final Map<String, ChannelSpacing> CHANNEL_SPACING_MAP = ImmutableMap |
| .<String, ChannelSpacing>builder() |
| .put(CH_6P25, ChannelSpacing.CHL_6P25GHZ) |
| .put(CH_12P5, ChannelSpacing.CHL_12P5GHZ) |
| .put(CH_25, ChannelSpacing.CHL_25GHZ) |
| .put(CH_50, ChannelSpacing.CHL_50GHZ) |
| .put(CH_100, ChannelSpacing.CHL_100GHZ) |
| .build(); |
| @Argument(index = 0, name = "operation", description = "Netconf Operation including get, edit-config, etc.", |
| required = true, multiValued = false) |
| @Completion(NetconfOperationCompleter.class) |
| private String operation = null; |
| |
| @Argument(index = 1, name = "connectPoint", |
| description = "Device/Port Description", |
| required = true, multiValued = false) |
| @Completion(OpticalConnectPointCompleter.class) |
| String connectPointString = ""; |
| |
| @Argument(index = 2, name = "value", |
| description = "Optical Signal or wavelength. Provide wavelenght in MHz, while Och Format = " |
| + SIGNAL_FORMAT, required = false, multiValued = false) |
| String parameter = ""; |
| |
| |
| private OchSignal createOchSignal() throws IllegalArgumentException { |
| if (parameter == null) { |
| return null; |
| } |
| try { |
| String[] splitted = parameter.split("/"); |
| checkArgument(splitted.length == 4, |
| "signal requires 4 parameters: " + SIGNAL_FORMAT); |
| int slotGranularity = Integer.parseInt(splitted[0]); |
| String chSpacing = splitted[1]; |
| ChannelSpacing channelSpacing = checkNotNull(CHANNEL_SPACING_MAP.get(chSpacing), |
| String.format("invalid channel spacing: %s", chSpacing)); |
| int multiplier = Integer.parseInt(splitted[2]); |
| String gdType = splitted[3].toUpperCase(); |
| GridType gridType = GridType.valueOf(gdType); |
| return new OchSignal(gridType, channelSpacing, multiplier, slotGranularity); |
| } catch (RuntimeException e) { |
| /* catching RuntimeException as both NullPointerException (thrown by |
| * checkNotNull) and IllegalArgumentException (thrown by checkArgument) |
| * are subclasses of RuntimeException. |
| */ |
| String msg = String.format("Invalid signal format: %s, expected format is %s.", |
| parameter, SIGNAL_FORMAT); |
| print(msg); |
| throw new IllegalArgumentException(msg, e); |
| } |
| } |
| |
| private OchSignal createOchSignalFromWavelength(DeviceService deviceService, ConnectPoint cp) { |
| long wavelength = Long.parseLong(parameter); |
| if (wavelength == 0L) { |
| return null; |
| } |
| Port port = deviceService.getPort(cp); |
| Optional<OchPort> ochPortOpt = OchPortHelper.asOchPort(port); |
| |
| if (ochPortOpt.isPresent()) { |
| OchPort ochPort = ochPortOpt.get(); |
| GridType gridType = ochPort.lambda().gridType(); |
| ChannelSpacing channelSpacing = ochPort.lambda().channelSpacing(); |
| int slotGranularity = ochPort.lambda().slotGranularity(); |
| int multiplier = getMultplier(wavelength, gridType, channelSpacing); |
| return new OchSignal(gridType, channelSpacing, multiplier, slotGranularity); |
| } else { |
| print("Connect point %s is not OChPort", cp); |
| return null; |
| } |
| |
| } |
| |
| private int getMultplier(long wavelength, GridType gridType, ChannelSpacing channelSpacing) { |
| long baseFreq; |
| switch (gridType) { |
| case DWDM: |
| baseFreq = BASE_FREQUENCY; |
| break; |
| case CWDM: |
| case FLEX: |
| case UNKNOWN: |
| default: |
| baseFreq = 0L; |
| break; |
| } |
| if (wavelength > baseFreq) { |
| return (int) ((wavelength - baseFreq) / (channelSpacing.frequency().asMHz())); |
| } else { |
| return (int) ((baseFreq - wavelength) / (channelSpacing.frequency().asMHz())); |
| } |
| } |
| |
| |
| @Override |
| protected void doExecute() throws Exception { |
| if (operation.equals("edit-config")) { |
| FlowRuleService flowService = get(FlowRuleService.class); |
| DeviceService deviceService = get(DeviceService.class); |
| CoreService coreService = get(CoreService.class); |
| ConnectPoint cp = ConnectPoint.deviceConnectPoint(connectPointString); |
| |
| TrafficSelector.Builder trafficSelectorBuilder = DefaultTrafficSelector.builder(); |
| TrafficTreatment.Builder trafficTreatmentBuilder = DefaultTrafficTreatment.builder(); |
| FlowRule.Builder flowRuleBuilder = DefaultFlowRule.builder(); |
| |
| |
| // an empty traffic selector |
| TrafficSelector trafficSelector = trafficSelectorBuilder.matchInPort(cp.port()).build(); |
| OchSignal ochSignal; |
| if (parameter.contains("/")) { |
| ochSignal = createOchSignal(); |
| } else if (parameter.matches("-?\\d+(\\.\\d+)?")) { |
| ochSignal = createOchSignalFromWavelength(deviceService, cp); |
| } else { |
| print("Signal or wavelength %s are in uncorrect format"); |
| return; |
| } |
| if (ochSignal == null) { |
| print("Error in creating OchSignal"); |
| return; |
| } |
| TrafficTreatment trafficTreatment = trafficTreatmentBuilder |
| .add(Instructions.modL0Lambda(ochSignal)) |
| .add(Instructions.createOutput(deviceService.getPort(cp).number())) |
| .build(); |
| |
| Device device = deviceService.getDevice(cp.deviceId()); |
| int priority = 100; |
| ApplicationId appId = coreService.registerApplication("org.onosproject.optical-model"); |
| log.info(appId.name()); |
| FlowRule addFlow = flowRuleBuilder |
| .withPriority(priority) |
| .fromApp(appId) |
| .withTreatment(trafficTreatment) |
| .withSelector(trafficSelector) |
| .forDevice(device.id()) |
| .makePermanent() |
| .build(); |
| flowService.applyFlowRules(addFlow); |
| String msg = String.format("Setting wavelength %s", ochSignal.centralFrequency().asGHz()); |
| print(msg); |
| } else { |
| print("Operation %s are not supported now.", operation); |
| } |
| |
| } |
| } |