Yi Tseng | 9619d80 | 2020-03-19 23:28:31 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2020-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.openconfig; |
| 20 | |
| 21 | import com.google.common.collect.ImmutableSet; |
| 22 | import com.google.common.collect.Range; |
| 23 | import gnmi.Gnmi; |
| 24 | import org.onosproject.gnmi.api.GnmiClient; |
| 25 | import org.onosproject.gnmi.api.GnmiController; |
| 26 | import org.onosproject.gnmi.api.GnmiUtils.GnmiPathBuilder; |
| 27 | import org.onosproject.grpc.utils.AbstractGrpcHandlerBehaviour; |
| 28 | import org.onosproject.net.Port; |
| 29 | import org.onosproject.net.PortNumber; |
| 30 | import org.onosproject.net.behaviour.PowerConfig; |
| 31 | import org.slf4j.Logger; |
| 32 | import org.slf4j.LoggerFactory; |
| 33 | |
| 34 | import java.util.Collection; |
| 35 | import java.util.Optional; |
| 36 | import java.util.concurrent.ExecutionException; |
| 37 | |
| 38 | /** |
| 39 | * PowerConfig behaviour for gNMI and OpenConfig model based device. |
| 40 | */ |
| 41 | public class GnmiTerminalDevicePowerConfig<T> |
| 42 | extends AbstractGrpcHandlerBehaviour<GnmiClient, GnmiController> |
| 43 | implements PowerConfig<T> { |
| 44 | |
| 45 | private static final Logger log = LoggerFactory.getLogger(GnmiTerminalDevicePowerConfig.class); |
| 46 | private static final int DEFAULT_OC_POWER_PRECISION = 2; |
| 47 | private static final Collection<Port.Type> OPTICAL_TYPES = ImmutableSet.of(Port.Type.FIBER, |
| 48 | Port.Type.PACKET, |
| 49 | Port.Type.ODUCLT, |
| 50 | Port.Type.OCH, |
| 51 | Port.Type.OMS, |
| 52 | Port.Type.OTU); |
| 53 | |
| 54 | public GnmiTerminalDevicePowerConfig() { |
| 55 | super(GnmiController.class); |
| 56 | } |
| 57 | |
| 58 | @Override |
| 59 | public Optional<Double> getTargetPower(PortNumber port, T component) { |
| 60 | if (!setupBehaviour("getTargetPower")) { |
| 61 | return Optional.empty(); |
| 62 | } |
| 63 | if (!isOpticalPort(port)) { |
| 64 | return Optional.empty(); |
| 65 | } |
| 66 | // path: /components/component[name=<name>]/optical-channel/config/target-output-power |
| 67 | return getValueFromPath(getOcName(port), "config/target-output-power"); |
| 68 | } |
| 69 | |
| 70 | @Override |
| 71 | public void setTargetPower(PortNumber port, T component, double power) { |
| 72 | if (!setupBehaviour("setTargetPower")) { |
| 73 | return; |
| 74 | } |
| 75 | if (!isOpticalPort(port)) { |
| 76 | return; |
| 77 | } |
| 78 | setValueToPath(getOcName(port), "config/target-output-power", power); |
| 79 | } |
| 80 | |
| 81 | @Override |
| 82 | public Optional<Double> currentPower(PortNumber port, T component) { |
| 83 | if (!setupBehaviour("currentPower")) { |
| 84 | return Optional.empty(); |
| 85 | } |
| 86 | if (!isOpticalPort(port)) { |
| 87 | return Optional.empty(); |
| 88 | } |
| 89 | // path: /components/component[name=<name>]/optical-channel/state/output-power/instant |
| 90 | return getValueFromPath(getOcName(port), "state/output-power/instant"); |
| 91 | } |
| 92 | |
| 93 | @Override |
| 94 | public Optional<Double> currentInputPower(PortNumber port, T component) { |
| 95 | if (!setupBehaviour("currentInputPower")) { |
| 96 | return Optional.empty(); |
| 97 | } |
| 98 | if (!isOpticalPort(port)) { |
| 99 | return Optional.empty(); |
| 100 | } |
| 101 | // path: /components/component[name=<name>]/optical-channel/state/input-power/instant |
| 102 | return getValueFromPath(getOcName(port), "state/input-power/instant"); |
| 103 | } |
| 104 | |
| 105 | @Override |
| 106 | public Optional<Range<Double>> getTargetPowerRange(PortNumber port, Object component) { |
| 107 | if (!isOpticalPort(port)) { |
| 108 | return Optional.empty(); |
| 109 | } |
| 110 | |
| 111 | // From CassiniTerminalDevicePowerConfig |
| 112 | double targetMin = -30; |
| 113 | double targetMax = 1; |
| 114 | return Optional.of(Range.open(targetMin, targetMax)); |
| 115 | } |
| 116 | |
| 117 | @Override |
| 118 | public Optional<Range<Double>> getInputPowerRange(PortNumber port, Object component) { |
| 119 | if (!isOpticalPort(port)) { |
| 120 | return Optional.empty(); |
| 121 | } |
| 122 | |
| 123 | // From CassiniTerminalDevicePowerConfig |
| 124 | double targetMin = -30; |
| 125 | double targetMax = 1; |
| 126 | return Optional.of(Range.open(targetMin, targetMax)); |
| 127 | } |
| 128 | |
| 129 | private String getOcName(PortNumber portNumber) { |
| 130 | if (!setupBehaviour("getOcName")) { |
| 131 | return null; |
| 132 | } |
| 133 | return deviceService.getPort(deviceId, portNumber).annotations().value("oc-name"); |
| 134 | } |
| 135 | |
| 136 | private boolean isOpticalPort(PortNumber portNumber) { |
| 137 | if (!setupBehaviour("isOpticalPort")) { |
| 138 | return false; |
| 139 | } |
| 140 | return OPTICAL_TYPES.contains(deviceService.getPort(deviceId, portNumber).type()); |
| 141 | } |
| 142 | |
| 143 | private Optional<Double> getValueFromPath(String ocName, String subPath) { |
| 144 | Gnmi.GetRequest req = Gnmi.GetRequest.newBuilder() |
| 145 | .addPath(buildPathWithSubPath(ocName, subPath)) |
| 146 | .setEncoding(Gnmi.Encoding.PROTO) |
| 147 | .build(); |
| 148 | try { |
| 149 | Gnmi.GetResponse resp = client.get(req).get(); |
| 150 | // Here we assume we have only one response |
| 151 | if (resp.getNotificationCount() == 0 || resp.getNotification(0).getUpdateCount() == 0) { |
| 152 | log.warn("Empty response for sub-path {}, component {}", subPath, ocName); |
| 153 | return Optional.empty(); |
| 154 | } |
| 155 | Gnmi.Update update = resp.getNotification(0).getUpdate(0); |
| 156 | Gnmi.Decimal64 value = update.getVal().getDecimalVal(); |
| 157 | return Optional.of(decimal64ToDouble(value)); |
| 158 | } catch (ExecutionException | InterruptedException e) { |
| 159 | log.warn("Unable to get value from optical sub-path {} for component {}: {}", |
| 160 | subPath, ocName, e.getMessage()); |
| 161 | return Optional.empty(); |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | private void setValueToPath(String ocName, String subPath, Double value) { |
| 166 | Gnmi.TypedValue val = Gnmi.TypedValue.newBuilder() |
| 167 | .setDecimalVal(doubleToDecimal64(value, DEFAULT_OC_POWER_PRECISION)) |
| 168 | .build(); |
| 169 | Gnmi.Update update = Gnmi.Update.newBuilder() |
| 170 | .setPath(buildPathWithSubPath(ocName, subPath)) |
| 171 | .setVal(val) |
| 172 | .build(); |
| 173 | Gnmi.SetRequest req = Gnmi.SetRequest.newBuilder() |
| 174 | .addUpdate(update) |
| 175 | .build(); |
| 176 | try { |
| 177 | client.set(req).get(); |
| 178 | } catch (ExecutionException | InterruptedException e) { |
| 179 | log.warn("Unable to set optical sub-path {}, component {}, value {}: {}", |
| 180 | subPath, ocName, value, e.getMessage()); |
| 181 | } |
| 182 | } |
| 183 | |
| 184 | private Gnmi.Path buildPathWithSubPath(String ocName, String subPath) { |
| 185 | String[] elems = subPath.split("/"); |
| 186 | GnmiPathBuilder pathBuilder = GnmiPathBuilder.newBuilder() |
| 187 | .addElem("components") |
| 188 | .addElem("component").withKeyValue("name", ocName) |
| 189 | .addElem("optical-channel"); |
| 190 | for (String elem : elems) { |
| 191 | pathBuilder.addElem(elem); |
| 192 | } |
| 193 | return pathBuilder.build(); |
| 194 | } |
| 195 | |
| 196 | private Double decimal64ToDouble(Gnmi.Decimal64 value) { |
| 197 | double result = value.getDigits(); |
| 198 | if (value.getPrecision() != 0) { |
| 199 | result = result / Math.pow(10, value.getPrecision()); |
| 200 | } |
| 201 | return result; |
| 202 | } |
| 203 | |
| 204 | private Gnmi.Decimal64 doubleToDecimal64(Double value, int precision) { |
| 205 | return Gnmi.Decimal64.newBuilder() |
| 206 | .setDigits((long) (value * Math.pow(10, precision))) |
| 207 | .setPrecision(precision) |
| 208 | .build(); |
| 209 | } |
| 210 | } |