| /* |
| * Copyright 2016 Open Networking Laboratory |
| * |
| * 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.driver.optical.power; |
| |
| import java.util.Optional; |
| |
| import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| import org.onosproject.net.Direction; |
| import org.onosproject.net.Port; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.behaviour.PowerConfig; |
| import org.onosproject.net.device.DeviceService; |
| import org.onosproject.net.optical.OpticalAnnotations; |
| import org.onosproject.openflow.controller.Dpid; |
| import org.onosproject.openflow.controller.OpenFlowController; |
| import org.onosproject.openflow.controller.OpenFlowSwitch; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Port Power (Gain and attenuation) implementation for Oplink ROADM. |
| * |
| * An Oplink ROADM port exposes OchSignal resources. |
| * Optical Power can be set at port level or channel/wavelength level (attenuation). |
| * |
| */ |
| |
| public class OplinkRoadmPowerConfig extends AbstractHandlerBehaviour |
| implements PowerConfig<Direction> { |
| protected final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| private OpenFlowSwitch getOpenFlowDevice() { |
| final OpenFlowController controller = this.handler().get(OpenFlowController.class); |
| final Dpid dpid = Dpid.dpid(this.data().deviceId().uri()); |
| OpenFlowSwitch sw = controller.getSwitch(dpid); |
| if (sw == null || !sw.isConnected()) { |
| return null; |
| } else { |
| return sw; |
| } |
| } |
| |
| @Override |
| public Optional<Long> getTargetPower(PortNumber portNum, Direction component) { |
| // Will be implemented in the future. |
| return Optional.empty(); |
| } |
| |
| @Override |
| public Optional<Long> currentPower(PortNumber portNum, Direction component) { |
| Long returnVal = null; |
| // Check if switch is connected, otherwise do not return value in store, |
| // which is obsolete. |
| if (getOpenFlowDevice() != null) { |
| DeviceService deviceService = this.handler().get(DeviceService.class); |
| Port port = deviceService.getPort(this.data().deviceId(), portNum); |
| if (port != null) { |
| String currentPower = port.annotations().value(OpticalAnnotations.CURRENT_POWER); |
| if (currentPower != null) { |
| returnVal = Long.valueOf(currentPower); |
| } |
| } |
| } |
| return Optional.ofNullable(returnVal); |
| } |
| |
| @Override |
| public void setTargetPower(PortNumber portNum, Direction component, long power) { |
| OpenFlowSwitch device = getOpenFlowDevice(); |
| if (device != null) { |
| device.sendMsg(device.factory().buildOplinkPortPowerSet() |
| .setXid(0) |
| .setPort((int) portNum.toLong()) |
| .setPowerValue((int) power) |
| .build()); |
| } else { |
| log.warn("OpenFlow handshaker driver not found or device is not connected"); |
| } |
| } |
| } |