Sho SHIMIZU | e81e4db | 2015-09-03 09:44:38 -0700 | [diff] [blame] | 1 | /* |
Brian O'Connor | 5ab426f | 2016-04-09 01:19:45 -0700 | [diff] [blame] | 2 | * Copyright 2015-present Open Networking Laboratory |
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.types; |
| 18 | |
| 19 | import java.util.Objects; |
| 20 | |
| 21 | import org.jboss.netty.buffer.ChannelBuffer; |
| 22 | import org.onosproject.pcepio.protocol.PcepVersion; |
| 23 | import org.slf4j.Logger; |
| 24 | import org.slf4j.LoggerFactory; |
| 25 | |
| 26 | import com.google.common.base.MoreObjects; |
| 27 | |
| 28 | /** |
| 29 | * Provides StatefulPceCapabilityTlv. |
| 30 | */ |
| 31 | public class StatefulPceCapabilityTlv implements PcepValueType { |
| 32 | |
| 33 | /* STATEFUL-PCE-CAPABILITY TLV format |
| 34 | * |
| 35 | * Reference :PCEP Extensions for Stateful PCE draft-ietf-pce-stateful-pce-10 |
| 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 | | Type=16 | Length=4 | |
| 41 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 42 | | Flags |D|T|I|S|U| |
| 43 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 44 | |
| 45 | */ |
| 46 | protected static final Logger log = LoggerFactory.getLogger(StatefulPceCapabilityTlv.class); |
| 47 | |
| 48 | public static final short TYPE = 16; |
| 49 | public static final short LENGTH = 4; |
| 50 | public static final byte UFLAG_SET = 0x01; |
| 51 | public static final byte SFLAG_SET = 0x02; |
| 52 | public static final byte IFLAG_SET = 0x04; |
| 53 | public static final byte TFLAG_SET = 0x08; |
| 54 | public static final byte DFLAG_SET = 0x10; |
| 55 | public static final int SET = 1; |
| 56 | |
| 57 | private final int rawValue; |
| 58 | private final boolean bDFlag; |
| 59 | private final boolean bTFlag; |
| 60 | private final boolean bIFlag; |
| 61 | private final boolean bSFlag; |
| 62 | private final boolean bUFlag; |
| 63 | private final boolean isRawValueSet; |
| 64 | |
| 65 | /** |
| 66 | * Constructor to initialize variables. |
| 67 | * |
| 68 | * @param rawValue Flags |
| 69 | */ |
| 70 | public StatefulPceCapabilityTlv(int rawValue) { |
| 71 | this.rawValue = rawValue; |
| 72 | isRawValueSet = true; |
Phanendra Manda | f346ea8 | 2015-09-04 15:21:39 -0700 | [diff] [blame] | 73 | this.bUFlag = (rawValue & UFLAG_SET) == UFLAG_SET; |
| 74 | this.bSFlag = (rawValue & SFLAG_SET) == SFLAG_SET; |
| 75 | this.bIFlag = (rawValue & IFLAG_SET) == IFLAG_SET; |
| 76 | this.bTFlag = (rawValue & TFLAG_SET) == TFLAG_SET; |
| 77 | this.bDFlag = (rawValue & DFLAG_SET) == DFLAG_SET; |
Sho SHIMIZU | e81e4db | 2015-09-03 09:44:38 -0700 | [diff] [blame] | 78 | } |
| 79 | |
| 80 | /** |
| 81 | * Constructor to initialize variables. |
| 82 | * |
| 83 | * @param bDFlag D-flag |
| 84 | * @param bTFlag T-flag |
| 85 | * @param bIFlag I-flag |
| 86 | * @param bSFlag S-flag |
| 87 | * @param bUFlag U-flag |
| 88 | */ |
| 89 | public StatefulPceCapabilityTlv(boolean bDFlag, boolean bTFlag, boolean bIFlag, boolean bSFlag, boolean bUFlag) { |
| 90 | this.bDFlag = bDFlag; |
| 91 | this.bTFlag = bTFlag; |
| 92 | this.bIFlag = bIFlag; |
| 93 | this.bSFlag = bSFlag; |
| 94 | this.bUFlag = bUFlag; |
| 95 | this.rawValue = 0; |
| 96 | isRawValueSet = false; |
| 97 | } |
| 98 | |
| 99 | /** |
| 100 | * Returns object of StatefulPceCapabilityTlv. |
| 101 | * |
| 102 | * @param raw value Flags |
| 103 | * @return object of StatefulPceCapabilityTlv |
| 104 | */ |
| 105 | public static StatefulPceCapabilityTlv of(final int raw) { |
| 106 | return new StatefulPceCapabilityTlv(raw); |
| 107 | } |
| 108 | |
| 109 | @Override |
| 110 | public PcepVersion getVersion() { |
| 111 | return PcepVersion.PCEP_1; |
| 112 | } |
| 113 | |
| 114 | /** |
| 115 | * Returns D-flag. |
| 116 | * |
| 117 | * @return bDFlag D-flag |
| 118 | */ |
| 119 | public boolean getDFlag() { |
| 120 | return bDFlag; |
| 121 | } |
| 122 | |
| 123 | /** |
| 124 | * Returns T-flag. |
| 125 | * |
| 126 | * @return bTFlag T-flag |
| 127 | */ |
| 128 | public boolean getTFlag() { |
| 129 | return bTFlag; |
| 130 | } |
| 131 | |
| 132 | /** |
| 133 | * Returns I-flag. |
| 134 | * |
| 135 | * @return bIFlag I-flag |
| 136 | */ |
| 137 | public boolean getIFlag() { |
| 138 | return bIFlag; |
| 139 | } |
| 140 | |
| 141 | /** |
| 142 | * Returns S-flag. |
| 143 | * |
| 144 | * @return bSFlag S-flag |
| 145 | */ |
| 146 | public boolean getSFlag() { |
| 147 | return bSFlag; |
| 148 | } |
| 149 | |
| 150 | /** |
| 151 | * Returns U-flag. |
| 152 | * |
| 153 | * @return bUFlag U-flag |
| 154 | */ |
| 155 | public boolean getUFlag() { |
| 156 | return bUFlag; |
| 157 | } |
| 158 | |
| 159 | /** |
| 160 | * Returns raw value Flags. |
| 161 | * |
| 162 | * @return rawValue Flags |
| 163 | */ |
| 164 | public int getInt() { |
| 165 | return rawValue; |
| 166 | } |
| 167 | |
| 168 | @Override |
| 169 | public short getType() { |
| 170 | return TYPE; |
| 171 | } |
| 172 | |
| 173 | @Override |
| 174 | public short getLength() { |
| 175 | return LENGTH; |
| 176 | } |
| 177 | |
| 178 | @Override |
| 179 | public int hashCode() { |
| 180 | if (isRawValueSet) { |
| 181 | return Objects.hash(rawValue); |
| 182 | } else { |
| 183 | return Objects.hash(bDFlag, bTFlag, bIFlag, bSFlag, bUFlag); |
| 184 | } |
| 185 | } |
| 186 | |
| 187 | @Override |
| 188 | public boolean equals(Object obj) { |
| 189 | if (this == obj) { |
| 190 | return true; |
| 191 | } |
| 192 | if (obj instanceof StatefulPceCapabilityTlv) { |
| 193 | StatefulPceCapabilityTlv other = (StatefulPceCapabilityTlv) obj; |
| 194 | if (isRawValueSet) { |
| 195 | return Objects.equals(this.rawValue, other.rawValue); |
| 196 | } else { |
| 197 | return Objects.equals(this.bDFlag, other.bDFlag) && Objects.equals(this.bTFlag, other.bTFlag) |
| 198 | && Objects.equals(this.bIFlag, other.bIFlag) && Objects.equals(this.bSFlag, other.bSFlag) |
| 199 | && Objects.equals(this.bUFlag, other.bUFlag); |
| 200 | } |
| 201 | } |
| 202 | return false; |
| 203 | } |
| 204 | |
| 205 | @Override |
| 206 | public int write(ChannelBuffer c) { |
| 207 | int iLenStartIndex = c.writerIndex(); |
| 208 | c.writeShort(TYPE); |
| 209 | c.writeShort(LENGTH); |
| 210 | if (isRawValueSet) { |
| 211 | c.writeInt(rawValue); |
| 212 | } else { |
| 213 | int temp = 0; |
| 214 | if (bUFlag) { |
| 215 | temp = temp | UFLAG_SET; |
| 216 | } |
| 217 | if (bSFlag) { |
| 218 | temp = temp | SFLAG_SET; |
| 219 | } |
| 220 | if (bIFlag) { |
| 221 | temp = temp | IFLAG_SET; |
| 222 | } |
| 223 | if (bTFlag) { |
| 224 | temp = temp | TFLAG_SET; |
| 225 | } |
| 226 | if (bDFlag) { |
| 227 | temp = temp | DFLAG_SET; |
| 228 | } |
| 229 | c.writeInt(temp); |
| 230 | } |
| 231 | return c.writerIndex() - iLenStartIndex; |
| 232 | } |
| 233 | |
| 234 | /** |
| 235 | * Reads from channel buffer and returns object of StatefulPceCapabilityTlv. |
| 236 | * |
| 237 | * @param c input channel buffer |
| 238 | * @return object of StatefulPceCapabilityTlv |
| 239 | */ |
| 240 | public static PcepValueType read(ChannelBuffer c) { |
| 241 | int temp = c.readInt(); |
| 242 | boolean bDFlag; |
| 243 | boolean bTFlag; |
| 244 | boolean bIFlag; |
| 245 | boolean bSFlag; |
| 246 | boolean bUFlag; |
| 247 | |
Phanendra Manda | f346ea8 | 2015-09-04 15:21:39 -0700 | [diff] [blame] | 248 | bUFlag = (temp & UFLAG_SET) == UFLAG_SET; |
| 249 | bSFlag = (temp & SFLAG_SET) == SFLAG_SET; |
| 250 | bIFlag = (temp & IFLAG_SET) == IFLAG_SET; |
| 251 | bTFlag = (temp & TFLAG_SET) == TFLAG_SET; |
| 252 | bDFlag = (temp & DFLAG_SET) == DFLAG_SET; |
Sho SHIMIZU | e81e4db | 2015-09-03 09:44:38 -0700 | [diff] [blame] | 253 | |
| 254 | return new StatefulPceCapabilityTlv(bDFlag, bTFlag, bIFlag, bSFlag, bUFlag); |
| 255 | } |
| 256 | |
| 257 | @Override |
| 258 | public String toString() { |
Sho SHIMIZU | 7cdbcf7 | 2015-09-03 14:43:05 -0700 | [diff] [blame] | 259 | return MoreObjects.toStringHelper(getClass()) |
| 260 | .add("type", TYPE) |
| 261 | .add("Length", LENGTH) |
| 262 | .add("DFlag", bDFlag) |
| 263 | .add("TFlag", bTFlag) |
| 264 | .add("IFlag", bIFlag) |
| 265 | .add("SFlag", bSFlag) |
| 266 | .add("UFlag", bUFlag) |
| 267 | .toString(); |
Sho SHIMIZU | e81e4db | 2015-09-03 09:44:38 -0700 | [diff] [blame] | 268 | } |
| 269 | } |