| /* |
| * Copyright 2015 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.query; |
| |
| import org.onosproject.net.ChannelSpacing; |
| import org.onosproject.net.GridType; |
| 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.Collectors; |
| import java.util.stream.IntStream; |
| |
| /** |
| * Lambda query implementation for LINC-OE Optical Emulator switch. |
| * |
| * The LINC ROADM emulator exposes two types of ports: OCh ports connect to ports in the packet layer, |
| * while OMS ports connect to an OMS port on a neighbouring ROADM. |
| * |
| * LINC exposes OchSignal resources: 80 lambdas of 50 GHz (fixed grid) around ITU-T G.694.1 center frequency 193.1 GHz. |
| */ |
| |
| public class LincOELambdaQuery extends AbstractHandlerBehaviour implements LambdaQuery { |
| |
| private static final int LAMBDA_COUNT = 80; |
| |
| @Override |
| public Set<OchSignal> queryLambdas(PortNumber port) { |
| DeviceService deviceService = this.handler().get(DeviceService.class); |
| Port p = deviceService.getPort(this.data().deviceId(), port); |
| |
| // OCh ports don't expose lambda resources |
| if (!p.type().equals(Port.Type.OMS)) { |
| return Collections.emptySet(); |
| } |
| |
| // OMS ports expose 80 fixed grid lambdas of 50GHz width, centered around the ITU-T center frequency 193.1 THz. |
| return IntStream.range(0, LAMBDA_COUNT) |
| .mapToObj(x -> new OchSignal(GridType.DWDM, ChannelSpacing.CHL_50GHZ, x - (LAMBDA_COUNT / 2), 4)) |
| .collect(Collectors.toSet()); |
| } |
| } |