| /* |
| * Copyright 2016-present 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.ui.model.topo; |
| |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.EdgeLink; |
| import org.onosproject.net.PortNumber; |
| |
| /** |
| * Designates a link between a device and a host; that is, an edge link. |
| */ |
| public class UiEdgeLink extends UiLink { |
| |
| private static final String E_UNASSOC = |
| "backing link not associated with this UI edge link: "; |
| |
| // private (synthetic) host link |
| private DeviceId edgeDevice; |
| private PortNumber edgePort; |
| private EdgeLink edgeLink; |
| |
| /** |
| * Creates a UI link. |
| * |
| * @param topology parent topology |
| * @param id canonicalized link identifier |
| */ |
| public UiEdgeLink(UiTopology topology, UiLinkId id) { |
| super(topology, id); |
| } |
| |
| @Override |
| public String endPointA() { |
| return edgeLink.hostId().toString(); |
| } |
| |
| @Override |
| public String endPointB() { |
| return edgeDevice + UiLinkId.ID_PORT_DELIMITER + edgePort; |
| } |
| |
| // no port for end-point A |
| |
| @Override |
| public String endPortB() { |
| return edgePort.toString(); |
| } |
| |
| @Override |
| protected void destroy() { |
| edgeDevice = null; |
| edgePort = null; |
| edgeLink = null; |
| } |
| |
| /** |
| * Attaches the given edge link to this UI link. This method will |
| * throw an exception if this UI link is not representative of the |
| * supplied link. |
| * |
| * @param elink edge link to attach |
| * @throws IllegalArgumentException if the link is not appropriate |
| */ |
| public void attachEdgeLink(EdgeLink elink) { |
| UiLinkId.Direction d = id.directionOf(elink); |
| // Expected direction of edge links is A-to-B (Host to device) |
| // but checking not null is a sufficient test |
| if (d == null) { |
| throw new IllegalArgumentException(E_UNASSOC + elink); |
| } |
| |
| edgeLink = elink; |
| edgeDevice = elink.hostLocation().deviceId(); |
| edgePort = elink.hostLocation().port(); |
| } |
| |
| } |