| /* |
| * Copyright 2019-present 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.opencord.bng; |
| |
| import org.onlab.packet.IpAddress; |
| import org.onlab.packet.MacAddress; |
| import org.onlab.packet.VlanId; |
| import org.onosproject.net.ConnectPoint; |
| |
| public final class BngUtils { |
| |
| private BngUtils() { |
| |
| } |
| |
| /** |
| * Extract the BNG attachment key given an event subject. |
| * |
| * @param eventInfo The event subsject |
| * @return BNG attachment ID |
| */ |
| public static String calculateBngAttachmentKey(PppoeEventSubject eventInfo) { |
| return calculateBngAttachmentKey(eventInfo.getOnuSerialNumber(), |
| eventInfo.getcTag(), eventInfo.getsTag(), |
| eventInfo.getOltConnectPoint(), eventInfo.getIpAddress(), |
| eventInfo.getMacAddress()); |
| } |
| |
| /** |
| * Extract the BNG attachment key given some of the attachment fields. |
| * |
| * @param onuSerialNumber Serial number of the ONU |
| * @param cTag VLAN C-Tag |
| * @param sTag VLAN S-Tag |
| * @param oltConnectPoint The OLT-level connect point |
| * @param ipAddress The attachment IP address |
| * @param macAddress The attachment MAC address |
| * @return The built attachment ID |
| */ |
| public static String calculateBngAttachmentKey(String onuSerialNumber, |
| VlanId cTag, VlanId sTag, |
| ConnectPoint oltConnectPoint, |
| IpAddress ipAddress, |
| MacAddress macAddress) { |
| return String.join("/", onuSerialNumber, cTag.toString(), |
| sTag.toString(), oltConnectPoint.toString(), |
| macAddress.toString() |
| ); |
| } |
| } |