| /* |
| * Copyright 2016 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.oplink; |
| |
| import org.onlab.util.GuavaCollectors; |
| import org.onosproject.net.OchSignal; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.behaviour.LambdaQuery; |
| import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| |
| import java.util.Set; |
| import java.util.stream.IntStream; |
| |
| import static org.onlab.util.Spectrum.CENTER_FREQUENCY; |
| import static org.onosproject.drivers.oplink.OplinkOpticalUtility.CHANNEL_SPACING; |
| import static org.onosproject.drivers.oplink.OplinkOpticalUtility.STOP_CENTER_FREQ; |
| import static org.onosproject.drivers.oplink.OplinkOpticalUtility.START_CENTER_FREQ; |
| |
| /** |
| * Lambda query implementation for Oplink netconf devices in C band. |
| * |
| * 96 lambdas with 50GHz width (fixed grid). |
| * |
| * Channel id: Nominal central frequency = 193100 GHz + spacingMultiplier * channelSpacing). |
| * Channel (-35 to 60): starting from 191350 GHz to 196100 GHz, Increment by 50GHz. |
| */ |
| public class OplinkOpticalLambdaQuery extends AbstractHandlerBehaviour implements LambdaQuery { |
| |
| @SuppressWarnings("MathRoundIntLong") |
| private static final int MIN_CHANNEL = (int) Math.round( |
| (START_CENTER_FREQ.subtract(CENTER_FREQUENCY).asHz() / CHANNEL_SPACING.frequency().asHz())); |
| @SuppressWarnings("MathRoundIntLong") |
| private static final int MAX_CHANNEL = (int) Math.round( |
| (STOP_CENTER_FREQ.subtract(CENTER_FREQUENCY).asHz() / CHANNEL_SPACING.frequency().asHz())); |
| |
| @Override |
| public Set<OchSignal> queryLambdas(PortNumber port) { |
| return IntStream.rangeClosed(MIN_CHANNEL, MAX_CHANNEL) |
| .mapToObj(x -> OchSignal.newDwdmSlot(CHANNEL_SPACING, x)) |
| .collect(GuavaCollectors.toImmutableSet()); |
| } |
| } |