Sho SHIMIZU | e81e4db | 2015-09-03 09:44:38 -0700 | [diff] [blame] | 1 | /* |
Brian O'Connor | a09fe5b | 2017-08-03 21:12:30 -0700 | [diff] [blame] | 2 | * Copyright 2015-present Open Networking Foundation |
Sho SHIMIZU | e81e4db | 2015-09-03 09:44:38 -0700 | [diff] [blame] | 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 | |
| 17 | package org.onosproject.pcepio.protocol.ver1; |
| 18 | |
| 19 | import org.jboss.netty.buffer.ChannelBuffer; |
| 20 | import org.onosproject.pcepio.exceptions.PcepParseException; |
| 21 | import org.onosproject.pcepio.protocol.PcepFecObjectIPv6Adjacency; |
| 22 | import org.onosproject.pcepio.protocol.PcepVersion; |
| 23 | import org.onosproject.pcepio.types.PcepObjectHeader; |
| 24 | import org.slf4j.Logger; |
| 25 | import org.slf4j.LoggerFactory; |
| 26 | |
| 27 | import com.google.common.base.MoreObjects; |
| 28 | |
| 29 | /** |
| 30 | * Provides Pcep Fec Object IPv6 Adjacency object. |
| 31 | */ |
| 32 | public class PcepFecObjectIPv6AdjacencyVer1 implements PcepFecObjectIPv6Adjacency { |
| 33 | |
| 34 | /* |
| 35 | * ref : draft-zhao-pce-pcep-extension-for-pce-controller-01 , section : 7.5 |
| 36 | * |
| 37 | 0 1 2 3 |
| 38 | 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
| 39 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 40 | | | |
| 41 | // Local IPv6 address (16 bytes) // |
| 42 | | | |
| 43 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 44 | | | |
| 45 | // Remote IPv6 address (16 bytes) // |
| 46 | | | |
| 47 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 48 | |
| 49 | FEC Object-Type is 4 IPv6 Adjacency |
| 50 | */ |
Ray Milkey | 9c9cde4 | 2018-01-12 14:22:06 -0800 | [diff] [blame] | 51 | private static final Logger log = LoggerFactory.getLogger(PcepFecObjectIPv6AdjacencyVer1.class); |
Sho SHIMIZU | e81e4db | 2015-09-03 09:44:38 -0700 | [diff] [blame] | 52 | |
| 53 | public static final byte FEC_OBJ_TYPE = 4; |
Mahesh Poojary S | f1bbd36 | 2016-02-25 18:19:59 +0530 | [diff] [blame] | 54 | public static final byte FEC_OBJ_CLASS = (byte) 226; |
Sho SHIMIZU | e81e4db | 2015-09-03 09:44:38 -0700 | [diff] [blame] | 55 | public static final byte FEC_OBJECT_VERSION = 1; |
| 56 | public static final short FEC_OBJ_MINIMUM_LENGTH = 36; |
| 57 | public static final int MINIMUM_COMMON_HEADER_LENGTH = 4; |
| 58 | public static final int IPV6_ADDRESS_LENGTH = 16; |
| 59 | |
| 60 | static final PcepObjectHeader DEFAULT_FEC_OBJECT_HEADER = new PcepObjectHeader(FEC_OBJ_CLASS, FEC_OBJ_TYPE, |
| 61 | PcepObjectHeader.REQ_OBJ_OPTIONAL_PROCESS, PcepObjectHeader.RSP_OBJ_PROCESSED, FEC_OBJ_MINIMUM_LENGTH); |
| 62 | |
| 63 | private PcepObjectHeader fecObjHeader; |
| 64 | private byte[] localIPv6Address = new byte[IPV6_ADDRESS_LENGTH]; |
| 65 | private byte[] remoteIPv6Address = new byte[IPV6_ADDRESS_LENGTH]; |
| 66 | |
| 67 | /** |
| 68 | * Constructor to initialize parameters for PCEP fec object. |
| 69 | * |
| 70 | * @param fecObjHeader fec object header |
| 71 | * @param localIPv6Address local IPv6 address |
| 72 | * @param remoteIPv6Address remote IPv6 address |
| 73 | */ |
| 74 | public PcepFecObjectIPv6AdjacencyVer1(PcepObjectHeader fecObjHeader, byte[] localIPv6Address, |
| 75 | byte[] remoteIPv6Address) { |
| 76 | this.fecObjHeader = fecObjHeader; |
| 77 | this.localIPv6Address = localIPv6Address; |
| 78 | this.remoteIPv6Address = remoteIPv6Address; |
| 79 | } |
| 80 | |
| 81 | /** |
| 82 | * Sets Object Header. |
| 83 | * |
| 84 | * @param obj object header |
| 85 | */ |
| 86 | public void setFecIpv4ObjHeader(PcepObjectHeader obj) { |
| 87 | this.fecObjHeader = obj; |
| 88 | } |
| 89 | |
| 90 | @Override |
| 91 | public byte[] getLocalIPv6Address() { |
| 92 | return this.localIPv6Address; |
| 93 | } |
| 94 | |
| 95 | @Override |
| 96 | public void seLocalIPv6Address(byte[] value) { |
| 97 | this.localIPv6Address = value; |
| 98 | } |
| 99 | |
| 100 | @Override |
| 101 | public byte[] getRemoteIPv6Address() { |
| 102 | return this.remoteIPv6Address; |
| 103 | } |
| 104 | |
| 105 | @Override |
| 106 | public void seRemoteIPv6Address(byte[] value) { |
| 107 | this.remoteIPv6Address = value; |
| 108 | } |
| 109 | |
| 110 | /** |
| 111 | * Reads channel buffer and Returns object of PcepFecObjectIPv6Adjacency. |
| 112 | * |
| 113 | * @param cb of channel buffer |
| 114 | * @return object of PcepFecObjectIPv6Adjacency |
| 115 | * @throws PcepParseException when fails tp read from channel buffer |
| 116 | */ |
| 117 | public static PcepFecObjectIPv6Adjacency read(ChannelBuffer cb) throws PcepParseException { |
| 118 | |
| 119 | PcepObjectHeader fecObjHeader; |
| 120 | byte[] localIPv6Address = new byte[IPV6_ADDRESS_LENGTH]; |
| 121 | byte[] remoteIPv6Address = new byte[IPV6_ADDRESS_LENGTH]; |
| 122 | fecObjHeader = PcepObjectHeader.read(cb); |
| 123 | cb.readBytes(localIPv6Address, 0, IPV6_ADDRESS_LENGTH); |
| 124 | cb.readBytes(remoteIPv6Address, 0, IPV6_ADDRESS_LENGTH); |
| 125 | return new PcepFecObjectIPv6AdjacencyVer1(fecObjHeader, localIPv6Address, remoteIPv6Address); |
| 126 | } |
| 127 | |
| 128 | @Override |
| 129 | public int write(ChannelBuffer cb) throws PcepParseException { |
| 130 | |
| 131 | int objStartIndex = cb.writerIndex(); |
| 132 | |
| 133 | //write common header |
| 134 | int objLenIndex = fecObjHeader.write(cb); |
| 135 | cb.writeBytes(localIPv6Address); |
| 136 | cb.writeBytes(remoteIPv6Address); |
| 137 | //now write FEC IPv6 Adjacency Object Length |
| 138 | cb.setShort(objLenIndex, (short) (cb.writerIndex() - objStartIndex)); |
| 139 | return cb.writerIndex(); |
| 140 | } |
| 141 | |
| 142 | /** |
| 143 | * Builder class for PCEP fec object IPv6 Adjacency. |
| 144 | */ |
| 145 | public static class Builder implements PcepFecObjectIPv6Adjacency.Builder { |
| 146 | private boolean bIsHeaderSet = false; |
| 147 | private boolean bIsLocalIPv6Addressset = false; |
| 148 | private boolean bIsRemoteIPv6Addressset = false; |
| 149 | |
| 150 | private PcepObjectHeader fecObjHeader; |
| 151 | byte[] localIPv6Address = new byte[IPV6_ADDRESS_LENGTH]; |
| 152 | byte[] remoteIPv6Address = new byte[IPV6_ADDRESS_LENGTH]; |
| 153 | |
| 154 | private boolean bIsPFlagSet = false; |
| 155 | private boolean bPFlag; |
| 156 | |
| 157 | private boolean bIsIFlagSet = false; |
| 158 | private boolean bIFlag; |
| 159 | |
| 160 | @Override |
| 161 | public PcepFecObjectIPv6Adjacency build() throws PcepParseException { |
| 162 | PcepObjectHeader fecObjHeader = this.bIsHeaderSet ? this.fecObjHeader : DEFAULT_FEC_OBJECT_HEADER; |
| 163 | |
| 164 | if (!this.bIsLocalIPv6Addressset) { |
| 165 | throw new PcepParseException( |
| 166 | "Local IPv6 Address not set while building PcepFecObjectIPv6Adjacency object."); |
| 167 | } |
| 168 | if (!this.bIsRemoteIPv6Addressset) { |
| 169 | throw new PcepParseException( |
| 170 | "Remote IPv6 Address not set while building PcepFecObjectIPv6Adjacency object."); |
| 171 | } |
| 172 | if (bIsPFlagSet) { |
| 173 | fecObjHeader.setPFlag(bPFlag); |
| 174 | } |
| 175 | if (bIsIFlagSet) { |
| 176 | fecObjHeader.setIFlag(bIFlag); |
| 177 | } |
| 178 | return new PcepFecObjectIPv6AdjacencyVer1(fecObjHeader, this.localIPv6Address, this.remoteIPv6Address); |
| 179 | } |
| 180 | |
| 181 | @Override |
| 182 | public Builder setPFlag(boolean value) { |
| 183 | this.bPFlag = value; |
| 184 | this.bIsPFlagSet = true; |
| 185 | return this; |
| 186 | } |
| 187 | |
| 188 | @Override |
| 189 | public Builder setIFlag(boolean value) { |
| 190 | this.bIFlag = value; |
| 191 | this.bIsIFlagSet = true; |
| 192 | return this; |
| 193 | } |
| 194 | |
| 195 | @Override |
| 196 | public PcepObjectHeader getFecIpv6AdjacencyObjHeader() { |
| 197 | return this.fecObjHeader; |
| 198 | } |
| 199 | |
| 200 | @Override |
| 201 | public Builder setFecIpv6AdjacencyObjHeader(PcepObjectHeader obj) { |
| 202 | this.fecObjHeader = obj; |
| 203 | this.bIsHeaderSet = true; |
| 204 | return this; |
| 205 | } |
| 206 | |
| 207 | @Override |
| 208 | public byte[] getLocalIPv6Address() { |
| 209 | return this.localIPv6Address; |
| 210 | } |
| 211 | |
| 212 | @Override |
| 213 | public Builder setLocalIPv6Address(byte[] value) { |
| 214 | this.localIPv6Address = value; |
| 215 | this.bIsLocalIPv6Addressset = true; |
| 216 | return this; |
| 217 | } |
| 218 | |
| 219 | @Override |
| 220 | public byte[] getRemoteIPv6Address() { |
| 221 | return this.remoteIPv6Address; |
| 222 | } |
| 223 | |
| 224 | @Override |
| 225 | public Builder setRemoteIPv6Address(byte[] value) { |
| 226 | this.remoteIPv6Address = value; |
| 227 | this.bIsRemoteIPv6Addressset = true; |
| 228 | return this; |
| 229 | } |
| 230 | } |
| 231 | |
| 232 | @Override |
| 233 | public PcepVersion getVersion() { |
| 234 | return PcepVersion.PCEP_1; |
| 235 | } |
| 236 | |
| 237 | @Override |
| 238 | public int getType() { |
| 239 | return FEC_OBJ_TYPE; |
| 240 | } |
| 241 | |
| 242 | @Override |
| 243 | public String toString() { |
Sho SHIMIZU | 7cdbcf7 | 2015-09-03 14:43:05 -0700 | [diff] [blame] | 244 | return MoreObjects.toStringHelper(getClass()) |
| 245 | .add("localIPv6Address", localIPv6Address) |
| 246 | .add("remoteIPv6Address: ", remoteIPv6Address) |
| 247 | .toString(); |
Sho SHIMIZU | e81e4db | 2015-09-03 09:44:38 -0700 | [diff] [blame] | 248 | } |
| 249 | } |