| /* |
| * 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; |
| |
| import com.google.common.base.MoreObjects; |
| import org.jboss.netty.buffer.ChannelBuffer; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.Objects; |
| |
| /** |
| * Provides MultiProtocolExtnCapabilityTlv. |
| */ |
| public class MultiProtocolExtnCapabilityTlv implements BgpValueType { |
| |
| /* |
| 0 7 15 23 31 |
| +-------+-------+-------+-------+ |
| | AFI | Res | SAFI | |
| +-------+-------+-------+-------+ |
| |
| Multiprotocol Extensions CAPABILITY TLV format |
| REFERENCE : RFC 4760 |
| */ |
| protected static final Logger log = LoggerFactory |
| .getLogger(MultiProtocolExtnCapabilityTlv.class); |
| |
| public static final byte TYPE = 1; |
| public static final byte LENGTH = 4; |
| |
| private final short afi; |
| private final byte res; |
| private final byte safi; |
| |
| /** |
| * Constructor to initialize variables. |
| * @param afi Address Family Identifiers |
| * @param res reserved field |
| * @param safi Subsequent Address Family Identifier |
| */ |
| public MultiProtocolExtnCapabilityTlv(short afi, byte res, byte safi) { |
| this.afi = afi; |
| this.res = res; |
| this.safi = safi; |
| } |
| |
| /** |
| * Returns object of MultiProtocolExtnCapabilityTlv. |
| * @param afi Address Family Identifiers |
| * @param res reserved field |
| * @param safi Subsequent Address Family Identifier |
| * @return object of MultiProtocolExtnCapabilityTlv |
| */ |
| public static MultiProtocolExtnCapabilityTlv of(short afi, byte res, |
| byte safi) { |
| return new MultiProtocolExtnCapabilityTlv(afi, res, safi); |
| } |
| |
| /** |
| * Returns afi Address Family Identifiers value. |
| * @return afi Address Family Identifiers value |
| */ |
| public short getAfi() { |
| return afi; |
| } |
| |
| /** |
| * Returns res reserved field value. |
| * @return res reserved field value |
| */ |
| public byte getRes() { |
| return res; |
| } |
| |
| /** |
| * Returns safi Subsequent Address Family Identifier value. |
| * @return safi Subsequent Address Family Identifier value |
| */ |
| public byte getSafi() { |
| return safi; |
| } |
| |
| @Override |
| public short getType() { |
| return TYPE; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(afi, res, safi); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj instanceof MultiProtocolExtnCapabilityTlv) { |
| MultiProtocolExtnCapabilityTlv other = (MultiProtocolExtnCapabilityTlv) obj; |
| return Objects.equals(this.afi, other.afi) |
| && Objects.equals(this.res, other.res) |
| && Objects.equals(this.safi, other.safi); |
| } |
| return false; |
| } |
| |
| @Override |
| public int write(ChannelBuffer cb) { |
| int iLenStartIndex = cb.writerIndex(); |
| cb.writeByte(TYPE); |
| cb.writeByte(LENGTH); |
| |
| // write afi |
| cb.writeShort(afi); |
| |
| // write res |
| cb.writeByte(res); |
| |
| // write safi |
| cb.writeByte(safi); |
| |
| return cb.writerIndex() - iLenStartIndex; |
| } |
| |
| /** |
| * Reads from channel buffer and returns object of MultiprotocolCapabilityTlv. |
| * @param cb of type channel buffer |
| * @return object of MultiProtocolExtnCapabilityTlv |
| */ |
| public static BgpValueType read(ChannelBuffer cb) { |
| short afi = cb.readShort(); |
| byte res = cb.readByte(); |
| byte safi = cb.readByte(); |
| return new MultiProtocolExtnCapabilityTlv(afi, res, safi); |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(getClass()) |
| .add("Type", TYPE) |
| .add("Length", LENGTH) |
| .add("AFI", afi) |
| .add("Reserved", res) |
| .add("SAFI", safi).toString(); |
| } |
| |
| @Override |
| public int compareTo(Object o) { |
| // TODO Auto-generated method stub |
| return 0; |
| } |
| } |