Vidyashree Rama | f49b22c | 2015-10-13 15:30:24 +0530 | [diff] [blame] | 1 | /*
|
| 2 | * Copyright 2015 Open Networking Laboratory
|
| 3 | *
|
| 4 | * Licensed under the Apache License, Version 2.0 (the "License");
|
| 5 | * you may not use this file except in compliance with the License.
|
| 6 | * You may obtain a copy of the License at
|
| 7 | *
|
| 8 | * http://www.apache.org/licenses/LICENSE-2.0
|
| 9 | *
|
| 10 | * Unless required by applicable law or agreed to in writing, software
|
| 11 | * distributed under the License is distributed on an "AS IS" BASIS,
|
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
| 13 | * See the License for the specific language governing permissions and
|
| 14 | * limitations under the License.
|
| 15 | */
|
| 16 | package org.onosproject.bgpio.types;
|
| 17 |
|
| 18 | import java.util.Objects;
|
| 19 | import org.jboss.netty.buffer.ChannelBuffer;
|
| 20 | import org.slf4j.Logger;
|
| 21 | import org.slf4j.LoggerFactory;
|
| 22 |
|
| 23 | import com.google.common.base.MoreObjects;
|
| 24 |
|
| 25 | /**
|
| 26 | * Provides MultiProtocolExtnCapabilityTlv.
|
| 27 | */
|
Shashikanth VH | 5dd8dbe | 2015-11-26 13:22:18 +0530 | [diff] [blame] | 28 | public class MultiProtocolExtnCapabilityTlv implements BgpValueType {
|
Vidyashree Rama | f49b22c | 2015-10-13 15:30:24 +0530 | [diff] [blame] | 29 |
|
| 30 | /*
|
| 31 | 0 7 15 23 31
|
| 32 | +-------+-------+-------+-------+
|
| 33 | | AFI | Res | SAFI |
|
| 34 | +-------+-------+-------+-------+
|
| 35 |
|
| 36 | Multiprotocol Extensions CAPABILITY TLV format
|
| 37 | REFERENCE : RFC 4760
|
| 38 | */
|
| 39 | protected static final Logger log = LoggerFactory
|
| 40 | .getLogger(MultiProtocolExtnCapabilityTlv.class);
|
| 41 |
|
| 42 | public static final byte TYPE = 1;
|
| 43 | public static final byte LENGTH = 4;
|
| 44 |
|
| 45 | private final short afi;
|
| 46 | private final byte res;
|
| 47 | private final byte safi;
|
| 48 |
|
| 49 | /**
|
| 50 | * Constructor to initialize variables.
|
| 51 | * @param afi Address Family Identifiers
|
| 52 | * @param res reserved field
|
| 53 | * @param safi Subsequent Address Family Identifier
|
| 54 | */
|
| 55 | public MultiProtocolExtnCapabilityTlv(short afi, byte res, byte safi) {
|
| 56 | this.afi = afi;
|
| 57 | this.res = res;
|
| 58 | this.safi = safi;
|
| 59 | }
|
| 60 |
|
| 61 | /**
|
| 62 | * Returns object of MultiProtocolExtnCapabilityTlv.
|
| 63 | * @param afi Address Family Identifiers
|
| 64 | * @param res reserved field
|
| 65 | * @param safi Subsequent Address Family Identifier
|
| 66 | * @return object of MultiProtocolExtnCapabilityTlv
|
| 67 | */
|
| 68 | public static MultiProtocolExtnCapabilityTlv of(short afi, byte res,
|
| 69 | byte safi) {
|
| 70 | return new MultiProtocolExtnCapabilityTlv(afi, res, safi);
|
| 71 | }
|
| 72 |
|
| 73 | /**
|
| 74 | * Returns afi Address Family Identifiers value.
|
| 75 | * @return afi Address Family Identifiers value
|
| 76 | */
|
| 77 | public short getAFI() {
|
| 78 | return afi;
|
| 79 | }
|
| 80 |
|
| 81 | /**
|
| 82 | * Returns res reserved field value.
|
| 83 | * @return res reserved field value
|
| 84 | */
|
| 85 | public byte getRes() {
|
| 86 | return res;
|
| 87 | }
|
| 88 |
|
| 89 | /**
|
| 90 | * Returns safi Subsequent Address Family Identifier value.
|
| 91 | * @return safi Subsequent Address Family Identifier value
|
| 92 | */
|
| 93 | public byte getSAFI() {
|
| 94 | return safi;
|
| 95 | }
|
| 96 |
|
| 97 | @Override
|
| 98 | public short getType() {
|
| 99 | return TYPE;
|
| 100 | }
|
| 101 |
|
| 102 | @Override
|
| 103 | public int hashCode() {
|
| 104 | return Objects.hash(afi, res, safi);
|
| 105 | }
|
| 106 |
|
| 107 | @Override
|
| 108 | public boolean equals(Object obj) {
|
| 109 | if (this == obj) {
|
| 110 | return true;
|
| 111 | }
|
| 112 | if (obj instanceof MultiProtocolExtnCapabilityTlv) {
|
| 113 | MultiProtocolExtnCapabilityTlv other = (MultiProtocolExtnCapabilityTlv) obj;
|
| 114 | return Objects.equals(this.afi, other.afi)
|
| 115 | && Objects.equals(this.res, other.res)
|
| 116 | && Objects.equals(this.safi, other.safi);
|
| 117 | }
|
| 118 | return false;
|
| 119 | }
|
| 120 |
|
| 121 | @Override
|
| 122 | public int write(ChannelBuffer cb) {
|
| 123 | int iLenStartIndex = cb.writerIndex();
|
| 124 | cb.writeByte(TYPE);
|
| 125 | cb.writeByte(LENGTH);
|
| 126 |
|
| 127 | // write afi
|
| 128 | cb.writeShort(afi);
|
| 129 |
|
| 130 | // write res
|
| 131 | cb.writeByte(res);
|
| 132 |
|
| 133 | // write safi
|
| 134 | cb.writeByte(safi);
|
| 135 |
|
| 136 | return cb.writerIndex() - iLenStartIndex;
|
| 137 | }
|
| 138 |
|
| 139 | /**
|
| 140 | * Reads from channel buffer and returns object of MultiprotocolCapabilityTlv.
|
| 141 | * @param cb of type channel buffer
|
| 142 | * @return object of MultiProtocolExtnCapabilityTlv
|
| 143 | */
|
Shashikanth VH | 5dd8dbe | 2015-11-26 13:22:18 +0530 | [diff] [blame] | 144 | public static BgpValueType read(ChannelBuffer cb) {
|
Vidyashree Rama | f49b22c | 2015-10-13 15:30:24 +0530 | [diff] [blame] | 145 | short afi = cb.readShort();
|
| 146 | byte res = cb.readByte();
|
| 147 | byte safi = cb.readByte();
|
| 148 | return new MultiProtocolExtnCapabilityTlv(afi, res, safi);
|
| 149 | }
|
| 150 |
|
| 151 | @Override
|
| 152 | public String toString() {
|
| 153 | return MoreObjects.toStringHelper(getClass())
|
| 154 | .add("Type", TYPE)
|
| 155 | .add("Length", LENGTH)
|
| 156 | .add("AFI", afi)
|
| 157 | .add("Reserved", res)
|
| 158 | .add("SAFI", safi).toString();
|
| 159 | }
|
Priyanka B | 0204073 | 2015-11-29 11:30:29 +0530 | [diff] [blame] | 160 |
|
| 161 | @Override
|
| 162 | public int compareTo(Object o) {
|
| 163 | // TODO Auto-generated method stub
|
| 164 | return 0;
|
| 165 | }
|
Vidyashree Rama | f49b22c | 2015-10-13 15:30:24 +0530 | [diff] [blame] | 166 | }
|