Jan Kundrát | 981fe47 | 2019-10-15 22:44:19 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016-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 | package org.onosproject.drivers.czechlight; |
| 17 | |
| 18 | import org.onlab.util.Frequency; |
| 19 | import org.onlab.util.Spectrum; |
| 20 | import org.onosproject.net.ChannelSpacing; |
| 21 | import org.onosproject.net.OchSignal; |
| 22 | import org.onosproject.net.Port; |
| 23 | import org.onosproject.net.PortNumber; |
| 24 | import org.onosproject.net.behaviour.LambdaQuery; |
| 25 | import org.onosproject.net.device.DeviceService; |
| 26 | import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| 27 | |
| 28 | import java.util.Collections; |
| 29 | import java.util.Set; |
| 30 | import java.util.stream.IntStream; |
| 31 | import java.util.stream.Collectors; |
| 32 | |
| 33 | /** |
| 34 | * Implementation of lambda query interface for CzechLight ROADMs. |
| 35 | * |
| 36 | * These devices are actually fully flexgrid-capable. Same as the other devices supported by ONOS, |
| 37 | * we're just returning a dummy list of 50 GHz channels. |
| 38 | */ |
| 39 | public class CzechLightLambdaQuery extends AbstractHandlerBehaviour implements LambdaQuery { |
| 40 | |
| 41 | private static final Frequency START_CENTER_FREQ_50 = Frequency.ofGHz(191_350); |
| 42 | private static final Frequency END_CENTER_FREQ_50 = Frequency.ofGHz(196_100); |
| 43 | |
| 44 | @Override |
| 45 | public Set<OchSignal> queryLambdas(PortNumber portNumber) { |
| 46 | DeviceService deviceService = this.handler().get(DeviceService.class); |
| 47 | Port port = deviceService.getPort(data().deviceId(), portNumber); |
| 48 | |
| 49 | if ((port.type() == Port.Type.FIBER) || (port.type() == Port.Type.OMS)) { |
| 50 | final int startMultiplier50 = (int) (START_CENTER_FREQ_50.subtract(Spectrum.CENTER_FREQUENCY).asHz() |
| 51 | / Frequency.ofGHz(50).asHz()); |
| 52 | final int endMultiplier50 = (int) (END_CENTER_FREQ_50.subtract(Spectrum.CENTER_FREQUENCY).asHz() |
| 53 | / Frequency.ofGHz(50).asHz()); |
| 54 | return IntStream.range(startMultiplier50, endMultiplier50 + 1) |
| 55 | .mapToObj(x -> OchSignal.newDwdmSlot(ChannelSpacing.CHL_50GHZ, x)) |
| 56 | .collect(Collectors.toSet()); |
| 57 | } else { |
| 58 | return Collections.emptySet(); |
| 59 | } |
| 60 | } |
| 61 | } |
| 62 | |
| 63 | |