| /* |
| * 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.isis.io.isispacket.tlv; |
| |
| import com.google.common.base.MoreObjects; |
| import com.google.common.primitives.Bytes; |
| import org.jboss.netty.buffer.ChannelBuffer; |
| import org.onosproject.isis.io.isispacket.tlv.subtlv.SubTlvFinder; |
| import org.onosproject.isis.io.isispacket.tlv.subtlv.SubTlvToBytes; |
| import org.onosproject.isis.io.isispacket.tlv.subtlv.SubTlvType; |
| import org.onosproject.isis.io.isispacket.tlv.subtlv.TrafficEngineeringSubTlv; |
| import org.onosproject.isis.io.util.IsisUtil; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Representation of IS extended reachability neighbors. |
| */ |
| public class NeighborForExtendedIs { |
| |
| private String neighborId; |
| private int metric; |
| private List<TrafficEngineeringSubTlv> teSubTlv = new ArrayList<>(); |
| |
| /** |
| * Returns neighbor ID. |
| * |
| * @return neighbor ID |
| */ |
| public String neighborId() { |
| return neighborId; |
| } |
| |
| /** |
| * Returns list of sub tlvs. |
| * |
| * @return teSubTlv list of sub tlvs |
| */ |
| public List<TrafficEngineeringSubTlv> teSubTlv() { |
| return teSubTlv; |
| } |
| |
| /** |
| * Sets neighbor ID. |
| * |
| * @param neighborId neighbor ID |
| */ |
| public void setNeighborId(String neighborId) { |
| this.neighborId = neighborId; |
| } |
| |
| /** |
| * Returns metric. |
| * |
| * @return metric |
| */ |
| public int metric() { |
| return metric; |
| } |
| |
| /** |
| * Sets metric. |
| * |
| * @param metric metric |
| */ |
| public void setMetric(int metric) { |
| this.metric = metric; |
| } |
| |
| /** |
| * Adds the TE for extended IS instance to IS extended reachability TLV. |
| * |
| * @param trafficEngineeringSubTlv TE for extended IS instance |
| */ |
| public void addSubTlv(TrafficEngineeringSubTlv trafficEngineeringSubTlv) { |
| this.teSubTlv.add(trafficEngineeringSubTlv); |
| } |
| |
| /** |
| * Reads from the channel buffer and populate this instance. |
| * |
| * @param channelBuffer channel buffer instance |
| */ |
| public void readFrom(ChannelBuffer channelBuffer) { |
| byte[] tempByteArray = new byte[IsisUtil.ID_PLUS_ONE_BYTE]; |
| channelBuffer.readBytes(tempByteArray, 0, IsisUtil.ID_PLUS_ONE_BYTE); |
| this.setNeighborId(IsisUtil.systemIdPlus(tempByteArray)); |
| this.setMetric(channelBuffer.readUnsignedMedium()); |
| int nTlvPresent = channelBuffer.readByte(); |
| if (nTlvPresent > 0) { |
| while (channelBuffer.readableBytes() > IsisUtil.TWO_BYTES) { |
| TlvHeader tlvHeader = new TlvHeader(); |
| tlvHeader.setTlvType(channelBuffer.readByte()); |
| tlvHeader.setTlvLength(channelBuffer.readByte()); |
| SubTlvType tlvValue = SubTlvType.get(tlvHeader.tlvType()); |
| int tlvLength = tlvHeader.tlvLength(); |
| if (tlvValue != null) { |
| if (channelBuffer.readableBytes() >= tlvLength) { |
| TrafficEngineeringSubTlv subTlv = |
| SubTlvFinder.findSubTlv(tlvHeader, channelBuffer.readBytes(tlvHeader.tlvLength())); |
| if (subTlv != null) { |
| this.addSubTlv(subTlv); |
| } |
| } |
| } else { |
| if (channelBuffer.readableBytes() >= tlvLength) { |
| channelBuffer.readBytes(tlvLength); |
| } |
| } |
| } |
| } |
| } |
| |
| /** |
| * Returns neighbor details of IS extended reachability TLV. |
| * |
| * @return neighbor details of IS extended reachability TLV. |
| */ |
| public byte[] neighborBodyAsbytes() { |
| List<Byte> byteList = new ArrayList<>(); |
| byteList.addAll(IsisUtil.sourceAndLanIdToBytes(this.neighborId())); |
| byteList.addAll(Bytes.asList(IsisUtil.convertToThreeBytes(this.metric()))); |
| if (!this.teSubTlv.isEmpty()) { |
| for (TrafficEngineeringSubTlv trafficEngineeringSubTlv : this.teSubTlv) { |
| byteList.addAll(SubTlvToBytes.tlvToBytes(trafficEngineeringSubTlv)); |
| } |
| } |
| return Bytes.toArray(byteList); |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(getClass()) |
| .omitNullValues() |
| .add("neighborId", neighborId) |
| .add("metric", metric) |
| .add("teSubTlv", teSubTlv) |
| .toString(); |
| } |
| } |