| /* |
| * 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.onlab.packet.Ip4Address; |
| import org.onosproject.isis.io.util.IsisUtil; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Representation of IP interface address TLV. |
| */ |
| public class IpInterfaceAddressTlv extends TlvHeader implements IsisTlv { |
| |
| private List<Ip4Address> interfaceAddress = new ArrayList<>(); |
| |
| /** |
| * Creates an instance of IP interface address TLV. |
| * |
| * @param tlvHeader TLV header |
| */ |
| public IpInterfaceAddressTlv(TlvHeader tlvHeader) { |
| |
| this.setTlvType(tlvHeader.tlvType()); |
| this.setTlvLength(tlvHeader.tlvLength()); |
| |
| } |
| |
| /** |
| * Adds the interface address to IP interface address TLV. |
| * |
| * @param interfaceAddress interface address |
| */ |
| public void addInterfaceAddres(Ip4Address interfaceAddress) { |
| this.interfaceAddress.add(interfaceAddress); |
| } |
| |
| /** |
| * Returns the interface address of IP interface address TLV. |
| * |
| * @return interface address |
| */ |
| public List<Ip4Address> interfaceAddress() { |
| return interfaceAddress; |
| } |
| |
| @Override |
| public void readFrom(ChannelBuffer channelBuffer) { |
| while (channelBuffer.readableBytes() >= 4) { |
| byte[] addressbytes = new byte[IsisUtil.FOUR_BYTES]; |
| channelBuffer.readBytes(addressbytes, 0, IsisUtil.FOUR_BYTES); |
| this.interfaceAddress.add(Ip4Address.valueOf(addressbytes)); |
| } |
| } |
| |
| @Override |
| public byte[] asBytes() { |
| byte[] bytes = null; |
| byte[] tlvHeader = tlvHeaderAsByteArray(); |
| byte[] tlvBody = tlvBodyAsBytes(); |
| tlvHeader[1] = (byte) tlvBody.length; |
| bytes = Bytes.concat(tlvHeader, tlvBody); |
| return bytes; |
| } |
| |
| /** |
| * Returns TLV body of IP interface address TLV. |
| * |
| * @return byteArray TLV body of IP interface address TLV |
| */ |
| private byte[] tlvBodyAsBytes() { |
| List<Byte> bytes = new ArrayList<>(); |
| for (Ip4Address ip4Address : this.interfaceAddress) { |
| bytes.addAll(Bytes.asList(ip4Address.toOctets())); |
| } |
| return Bytes.toArray(bytes); |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(getClass()) |
| .omitNullValues() |
| .add("interfaceAddress", interfaceAddress) |
| .toString(); |
| } |
| } |