| /* |
| * Copyright 2015-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.bgpio.types.attr; |
| |
| import java.util.Objects; |
| |
| import org.jboss.netty.buffer.ChannelBuffer; |
| import org.onlab.packet.Ip4Address; |
| import org.onosproject.bgpio.exceptions.BgpParseException; |
| import org.onosproject.bgpio.types.BgpErrorType; |
| import org.onosproject.bgpio.types.BgpValueType; |
| import org.onosproject.bgpio.util.Validation; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.google.common.base.MoreObjects; |
| |
| /** |
| * Implements BGP attribute node router ID. |
| */ |
| public final class BgpAttrRouterIdV4 implements BgpValueType { |
| |
| protected static final Logger log = LoggerFactory |
| .getLogger(BgpAttrRouterIdV4.class); |
| |
| private final short sType; |
| |
| /* IPv4 Router-ID of Node */ |
| private final Ip4Address ip4RouterId; |
| |
| /** |
| * Constructor to initialize the value. |
| * |
| * @param ip4RouterId IPV4 address of router |
| * @param sType TLV type |
| */ |
| private BgpAttrRouterIdV4(Ip4Address ip4RouterId, short sType) { |
| this.ip4RouterId = ip4RouterId; |
| this.sType = sType; |
| } |
| |
| /** |
| * Returns object of this class with specified values. |
| * |
| * @param ip4RouterId IPv4 address |
| * @param sType Type of this TLV |
| * @return object of BgpAttrRouterIdV4 |
| */ |
| public static BgpAttrRouterIdV4 of(final Ip4Address ip4RouterId, |
| final short sType) { |
| return new BgpAttrRouterIdV4(ip4RouterId, sType); |
| } |
| |
| /** |
| * Reads the IPv4 Router-ID. |
| * |
| * @param cb ChannelBuffer |
| * @param sType tag type |
| * @return object of BgpAttrRouterIdV4 |
| * @throws BgpParseException while parsing BgpAttrRouterIdV4 |
| */ |
| public static BgpAttrRouterIdV4 read(ChannelBuffer cb, short sType) |
| throws BgpParseException { |
| short lsAttrLength = cb.readShort(); |
| |
| if ((lsAttrLength != 4) || (cb.readableBytes() < lsAttrLength)) { |
| Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, |
| BgpErrorType.ATTRIBUTE_LENGTH_ERROR, |
| lsAttrLength); |
| } |
| |
| byte[] ipBytes = new byte[lsAttrLength]; |
| cb.readBytes(ipBytes, 0, lsAttrLength); |
| Ip4Address ip4RouterId = Ip4Address.valueOf(ipBytes); |
| return BgpAttrRouterIdV4.of(ip4RouterId, sType); |
| } |
| |
| /** |
| * Returns the IPV4 router ID. |
| * |
| * @return Router ID |
| */ |
| public Ip4Address attrRouterId() { |
| return ip4RouterId; |
| } |
| |
| @Override |
| public short getType() { |
| return sType; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(ip4RouterId); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| |
| if (obj instanceof BgpAttrRouterIdV4) { |
| BgpAttrRouterIdV4 other = (BgpAttrRouterIdV4) obj; |
| return Objects.equals(ip4RouterId, other.ip4RouterId); |
| } |
| return false; |
| } |
| |
| @Override |
| public int write(ChannelBuffer cb) { |
| // TODO This will be implemented in the next version |
| return 0; |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(getClass()).omitNullValues() |
| .add("ip4RouterId", ip4RouterId).toString(); |
| } |
| |
| @Override |
| public int compareTo(Object o) { |
| // TODO Auto-generated method stub |
| return 0; |
| } |
| } |