| /* |
| * Copyright 2016 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.ospf.protocol.lsa.tlvtypes; |
| |
| 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.ospf.exceptions.OspfErrorType; |
| import org.onosproject.ospf.exceptions.OspfParseException; |
| import org.onosproject.ospf.protocol.lsa.TlvHeader; |
| import org.onosproject.ospf.protocol.lsa.types.TopLevelTlv; |
| import org.onosproject.ospf.protocol.util.OspfUtil; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Representation of an OSPF Opaque router tlv. |
| */ |
| public class RouterTlv extends TlvHeader implements TopLevelTlv { |
| |
| private static final Logger log = |
| LoggerFactory.getLogger(RouterTlv.class); |
| private Ip4Address routerAddress; |
| |
| /** |
| * Creates an instance of Opaque router tlv. |
| * |
| * @param header tlv header |
| */ |
| public RouterTlv(TlvHeader header) { |
| this.setTlvType(header.tlvType()); |
| this.setTlvLength(header.tlvLength()); |
| } |
| |
| /** |
| * Gets router address. |
| * |
| * @return router address |
| */ |
| public Ip4Address routerAddress() { |
| return routerAddress; |
| } |
| |
| /** |
| * Sets router address. |
| * |
| * @param routerAddress router address. |
| */ |
| public void setRouterAddress(Ip4Address routerAddress) { |
| this.routerAddress = routerAddress; |
| } |
| |
| /** |
| * Reads bytes from channel buffer . |
| * |
| * @param channelBuffer channel buffer instance |
| * @throws Exception might throws exception while parsing buffer |
| */ |
| public void readFrom(ChannelBuffer channelBuffer) throws Exception { |
| try { |
| byte[] tempByteArray = new byte[OspfUtil.FOUR_BYTES]; |
| channelBuffer.readBytes(tempByteArray, 0, OspfUtil.FOUR_BYTES); |
| this.setRouterAddress(Ip4Address.valueOf(tempByteArray)); |
| } catch (Exception e) { |
| log.debug("Error::RouterTLV:: {}", e.getMessage()); |
| throw new OspfParseException(OspfErrorType.OSPF_MESSAGE_ERROR, |
| OspfErrorType.BAD_MESSAGE); |
| } |
| } |
| |
| /** |
| * Gets router tlv as byte array. |
| * |
| * @return router tlv as byte array |
| */ |
| public byte[] asBytes() { |
| byte[] lsaMessage = null; |
| |
| byte[] tlvHeader = getTlvHeaderAsByteArray(); |
| byte[] tlvBody = getTlvBodyAsByteArray(); |
| lsaMessage = Bytes.concat(tlvHeader, tlvBody); |
| |
| return lsaMessage; |
| } |
| |
| /** |
| * Gets tlv body as byte array. |
| * |
| * @return tlv body as byte array |
| */ |
| public byte[] getTlvBodyAsByteArray() { |
| List<Byte> bodyLst = new ArrayList<>(); |
| bodyLst.addAll(Bytes.asList(this.routerAddress().toOctets())); |
| |
| return Bytes.toArray(bodyLst); |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(getClass()) |
| .omitNullValues() |
| .add("routerAddress", routerAddress) |
| .toString(); |
| } |
| } |
| |
| |