| /* |
| * Copyright 2016-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.drivers.czechlight; |
| |
| import org.onlab.util.Frequency; |
| import org.onlab.util.Spectrum; |
| import org.onosproject.net.ChannelSpacing; |
| import org.onosproject.net.OchSignal; |
| import org.onosproject.net.Port; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.behaviour.LambdaQuery; |
| import org.onosproject.net.device.DeviceService; |
| import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| |
| import java.util.Collections; |
| import java.util.Set; |
| import java.util.stream.IntStream; |
| import java.util.stream.Collectors; |
| |
| /** |
| * Implementation of lambda query interface for CzechLight ROADMs. |
| * |
| * These devices are actually fully flexgrid-capable. Same as the other devices supported by ONOS, |
| * we're just returning a dummy list of 50 GHz channels. |
| */ |
| public class CzechLightLambdaQuery extends AbstractHandlerBehaviour implements LambdaQuery { |
| |
| private static final Frequency START_CENTER_FREQ_50 = Frequency.ofGHz(191_350); |
| private static final Frequency END_CENTER_FREQ_50 = Frequency.ofGHz(196_100); |
| |
| @Override |
| public Set<OchSignal> queryLambdas(PortNumber portNumber) { |
| DeviceService deviceService = this.handler().get(DeviceService.class); |
| Port port = deviceService.getPort(data().deviceId(), portNumber); |
| |
| if ((port.type() == Port.Type.FIBER) || (port.type() == Port.Type.OMS)) { |
| final int startMultiplier50 = (int) (START_CENTER_FREQ_50.subtract(Spectrum.CENTER_FREQUENCY).asHz() |
| / Frequency.ofGHz(50).asHz()); |
| final int endMultiplier50 = (int) (END_CENTER_FREQ_50.subtract(Spectrum.CENTER_FREQUENCY).asHz() |
| / Frequency.ofGHz(50).asHz()); |
| return IntStream.range(startMultiplier50, endMultiplier50 + 1) |
| .mapToObj(x -> OchSignal.newDwdmSlot(ChannelSpacing.CHL_50GHZ, x)) |
| .collect(Collectors.toSet()); |
| } else { |
| return Collections.emptySet(); |
| } |
| } |
| } |
| |
| |