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.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 | * LabelSubObject: Provides a LabelSubObject. |
| 30 | */ |
| 31 | public class LabelSubObject implements PcepValueType { |
| 32 | |
| 33 | /* Reference : RFC 3209 |
| 34 | * LABEL Sub Object |
| 35 | * |
| 36 | 0 1 2 3 |
| 37 | 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 |
| 38 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 39 | | Type | Length | Flags | C-Type | |
| 40 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 41 | | Contents of Label Object | |
| 42 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 43 | */ |
| 44 | protected static final Logger log = LoggerFactory.getLogger(LabelSubObject.class); |
| 45 | |
| 46 | public static final short TYPE = 0x03; |
| 47 | public static final short LENGTH = 8; |
| 48 | private final byte flags; |
| 49 | private final byte cType; |
| 50 | private final int contents; |
| 51 | |
| 52 | /** |
| 53 | * constructor to initialize parameters for LabelSubObject. |
| 54 | * |
| 55 | * @param flags flags |
| 56 | * @param cType C-Type |
| 57 | * @param contents Contents of label object |
| 58 | */ |
| 59 | public LabelSubObject(byte flags, byte cType, int contents) { |
| 60 | this.flags = flags; |
| 61 | this.cType = cType; |
| 62 | this.contents = contents; |
| 63 | } |
| 64 | |
| 65 | /** |
| 66 | * Return an object of LabelSubObject. |
| 67 | * |
| 68 | * @param flags flags |
| 69 | * @param cType C-type |
| 70 | * @param contents contents of label objects |
| 71 | * @return object of LabelSubObject |
| 72 | */ |
| 73 | public static LabelSubObject of(byte flags, byte cType, int contents) { |
| 74 | return new LabelSubObject(flags, cType, contents); |
| 75 | } |
| 76 | |
| 77 | /** |
| 78 | * Returns Flags. |
| 79 | * |
| 80 | * @return flags |
| 81 | */ |
| 82 | public byte getFlags() { |
| 83 | return flags; |
| 84 | } |
| 85 | |
| 86 | /** |
| 87 | * Returns cType. |
| 88 | * |
| 89 | * @return cType |
| 90 | */ |
| 91 | public byte getCtype() { |
| 92 | return cType; |
| 93 | } |
| 94 | |
| 95 | /** |
| 96 | * Returns contents. |
| 97 | * |
| 98 | * @return contents |
| 99 | */ |
| 100 | public int getContents() { |
| 101 | return contents; |
| 102 | } |
| 103 | |
| 104 | @Override |
| 105 | public PcepVersion getVersion() { |
| 106 | return PcepVersion.PCEP_1; |
| 107 | } |
| 108 | |
| 109 | @Override |
| 110 | public short getType() { |
| 111 | return TYPE; |
| 112 | } |
| 113 | |
| 114 | @Override |
| 115 | public short getLength() { |
| 116 | return LENGTH; |
| 117 | } |
| 118 | |
| 119 | @Override |
| 120 | public int hashCode() { |
| 121 | return Objects.hash(flags, cType, contents); |
| 122 | } |
| 123 | |
| 124 | @Override |
| 125 | public boolean equals(Object obj) { |
| 126 | if (this == obj) { |
| 127 | return true; |
| 128 | } |
| 129 | if (obj instanceof LabelSubObject) { |
| 130 | LabelSubObject other = (LabelSubObject) obj; |
| 131 | return Objects.equals(this.flags, other.flags) && Objects.equals(this.cType, other.cType) |
| 132 | && Objects.equals(this.contents, other.contents); |
| 133 | } |
| 134 | return false; |
| 135 | } |
| 136 | |
| 137 | @Override |
| 138 | public int write(ChannelBuffer c) { |
| 139 | int iStartIndex = c.writerIndex(); |
| 140 | c.writeShort(TYPE); |
| 141 | c.writeShort(LENGTH); |
| 142 | c.writeByte(flags); |
| 143 | c.writeByte(cType); |
| 144 | c.writeByte(contents); |
| 145 | return c.writerIndex() - iStartIndex; |
| 146 | } |
| 147 | |
| 148 | /** |
| 149 | * Reads the channel buffer and returns object of LabelSubObject. |
| 150 | * |
| 151 | * @param c type of channel buffer |
| 152 | * @return object of LabelSubObject |
| 153 | */ |
| 154 | public static PcepValueType read(ChannelBuffer c) { |
| 155 | byte flags = c.readByte(); |
| 156 | byte cType = c.readByte(); |
| 157 | int contents = c.readInt(); |
| 158 | return new LabelSubObject(flags, cType, contents); |
| 159 | } |
| 160 | |
| 161 | @Override |
| 162 | public String toString() { |
Sho SHIMIZU | 7cdbcf7 | 2015-09-03 14:43:05 -0700 | [diff] [blame] | 163 | return MoreObjects.toStringHelper(getClass()) |
| 164 | .add("type", TYPE) |
| 165 | .add("Length", LENGTH) |
| 166 | .add("flags", flags) |
| 167 | .add("C-type", cType) |
| 168 | .add("contents", contents) |
| 169 | .toString(); |
Sho SHIMIZU | e81e4db | 2015-09-03 09:44:38 -0700 | [diff] [blame] | 170 | } |
| 171 | } |