| /* |
| * 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.net; |
| |
| import org.onlab.util.Frequency; |
| |
| import java.util.Objects; |
| |
| import static com.google.common.base.MoreObjects.toStringHelper; |
| |
| /** |
| * Implementation of OCh port (Optical Channel). |
| * Also referred to as a line side port (L-port) or narrow band port. |
| * See ITU G.709 "Interfaces for the Optical Transport Network (OTN)" |
| */ |
| public class OchPort extends DefaultPort { |
| |
| public static final Frequency CENTER_FREQUENCY = Frequency.ofTHz(193.1); |
| public static final Frequency FLEX_GRID_SLOT = Frequency.ofGHz(12.5); |
| |
| private final OduSignalType signalType; |
| private final boolean isTunable; |
| private final GridType gridType; |
| private final ChannelSpacing channelSpacing; |
| // Frequency = 193.1 THz + spacingMultiplier * channelSpacing |
| private final int spacingMultiplier; |
| // Slot width = slotGranularity * 12.5 GHz |
| private final int slotGranularity; |
| |
| |
| /** |
| * Creates an OCh port in the specified network element. |
| * |
| * @param element parent network element |
| * @param number port number |
| * @param isEnabled port enabled state |
| * @param signalType ODU signal type |
| * @param isTunable maximum frequency in MHz |
| * @param gridType grid type |
| * @param channelSpacing channel spacing |
| * @param spacingMultiplier channel spacing multiplier |
| * @param slotGranularity slot width granularity |
| * @param annotations optional key/value annotations |
| */ |
| public OchPort(Element element, PortNumber number, boolean isEnabled, OduSignalType signalType, |
| boolean isTunable, GridType gridType, ChannelSpacing channelSpacing, |
| int spacingMultiplier, int slotGranularity, Annotations... annotations) { |
| super(element, number, isEnabled, Type.OCH, 0, annotations); |
| this.signalType = signalType; |
| this.isTunable = isTunable; |
| this.gridType = gridType; |
| this.channelSpacing = channelSpacing; |
| this.spacingMultiplier = spacingMultiplier; |
| this.slotGranularity = slotGranularity; |
| } |
| |
| /** |
| * Returns ODU signal type. |
| * |
| * @return ODU signal type |
| */ |
| public OduSignalType signalType() { |
| return signalType; |
| } |
| |
| /** |
| * Returns true if port is wavelength tunable. |
| * |
| * @return tunable wavelength capability |
| */ |
| public boolean isTunable() { |
| return isTunable; |
| } |
| |
| /** |
| * Returns grid type. |
| * |
| * @return grid type |
| */ |
| public GridType gridType() { |
| return gridType; |
| } |
| |
| /** |
| * Returns channel spacing. |
| * |
| * @return channel spacing |
| */ |
| public ChannelSpacing channelSpacing() { |
| return channelSpacing; |
| } |
| |
| /** |
| * Returns spacing multiplier. |
| * |
| * @return spacing multiplier |
| */ |
| public int spacingMultiplier() { |
| return spacingMultiplier; |
| } |
| |
| /** |
| * Returns slow width granularity. |
| * |
| * @return slow width granularity |
| */ |
| public int slotGranularity() { |
| return slotGranularity; |
| } |
| |
| /** |
| * Returns central frequency in MHz. |
| * |
| * @return frequency in MHz |
| */ |
| public Frequency centralFrequency() { |
| return CENTER_FREQUENCY.add(channelSpacing().frequency().multiply(spacingMultiplier)); |
| } |
| |
| /** |
| * Returns slot width. |
| * |
| * @return slot width |
| */ |
| public Frequency slotWidth() { |
| return FLEX_GRID_SLOT.multiply(slotGranularity); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(number(), isEnabled(), type(), signalType, isTunable, |
| gridType, channelSpacing, spacingMultiplier, slotGranularity, annotations()); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj instanceof OchPort) { |
| final OchPort other = (OchPort) obj; |
| return Objects.equals(this.element().id(), other.element().id()) && |
| Objects.equals(this.number(), other.number()) && |
| Objects.equals(this.isEnabled(), other.isEnabled()) && |
| Objects.equals(this.signalType, other.signalType) && |
| Objects.equals(this.isTunable, other.isTunable) && |
| Objects.equals(this.gridType, other.gridType) && |
| Objects.equals(this.channelSpacing, other.channelSpacing) && |
| Objects.equals(this.spacingMultiplier, other.spacingMultiplier) && |
| Objects.equals(this.slotGranularity, other.slotGranularity) && |
| Objects.equals(this.annotations(), other.annotations()); |
| } |
| return false; |
| } |
| |
| @Override |
| public String toString() { |
| return toStringHelper(this) |
| .add("element", element().id()) |
| .add("number", number()) |
| .add("isEnabled", isEnabled()) |
| .add("type", type()) |
| .add("signalType", signalType) |
| .add("isTunable", isTunable) |
| .add("gridType", gridType) |
| .add("channelSpacing", channelSpacing) |
| .add("spacingMultiplier", spacingMultiplier) |
| .add("slotGranularity", slotGranularity) |
| .toString(); |
| } |
| } |