bharat saraswal | f7364db | 2015-08-11 13:39:31 +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 | |
| 17 | package org.onosproject.pcepio.types; |
| 18 | |
| 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 PcepRsvpObjectHeader. |
| 27 | */ |
| 28 | public class PcepRsvpSpecObjHeader { |
| 29 | |
| 30 | /* |
| 31 | 0 1 2 3 |
| 32 | +-------------+-------------+-------------+-------------+ |
| 33 | | Length (bytes) | Class-Num | C-Type | |
| 34 | +-------------+-------------+-------------+-------------+ |
| 35 | | | |
| 36 | // (Object contents) // |
| 37 | | | |
| 38 | +-------------+-------------+-------------+-------------+ |
| 39 | |
| 40 | ERROR_SPEC object Header |
| 41 | */ |
| 42 | |
| 43 | protected static final Logger log = LoggerFactory.getLogger(PcepRsvpSpecObjHeader.class); |
| 44 | |
| 45 | private short objLen; |
| 46 | private byte objClassNum; |
| 47 | private byte objClassType; |
| 48 | |
| 49 | /** |
| 50 | * Constructor to initialize length, class num and type. |
| 51 | * |
| 52 | * @param objLen object length |
| 53 | * @param objClassNum pcep rsvp error spec object class num |
| 54 | * @param objClassType pcep rsvp error spec object class type |
| 55 | */ |
| 56 | public PcepRsvpSpecObjHeader(short objLen, byte objClassNum, byte objClassType) { |
| 57 | this.objLen = objLen; |
| 58 | this.objClassNum = objClassNum; |
| 59 | this.objClassType = objClassType; |
| 60 | } |
| 61 | |
| 62 | /** |
| 63 | * Sets the Class num. |
| 64 | * |
| 65 | * @param value pcep rsvp error spec object class num |
| 66 | */ |
| 67 | public void setObjClassNum(byte value) { |
| 68 | this.objClassNum = value; |
| 69 | } |
| 70 | |
| 71 | /** |
| 72 | * Sets the Class type. |
| 73 | * |
| 74 | * @param value pcep rsvp error spec object class type |
| 75 | */ |
| 76 | public void setObjClassType(byte value) { |
| 77 | this.objClassType = value; |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * Sets the Class Length. |
| 82 | * |
| 83 | * @param value pcep rsvp error spec object length |
| 84 | */ |
| 85 | public void setObjLen(short value) { |
| 86 | this.objLen = value; |
| 87 | } |
| 88 | |
| 89 | /** |
| 90 | * Returns Object Length. |
| 91 | * |
| 92 | * @return objLen pcep rsvp error spec object length |
| 93 | */ |
| 94 | public short getObjLen() { |
| 95 | return this.objLen; |
| 96 | } |
| 97 | |
| 98 | /** |
| 99 | * Returns Object num. |
| 100 | * |
| 101 | * @return objClassNum pcep rsvp error spec object class num |
| 102 | */ |
| 103 | public byte getObjClassNum() { |
| 104 | return this.objClassNum; |
| 105 | } |
| 106 | |
| 107 | /** |
| 108 | * Returns Object type. |
| 109 | * |
| 110 | * @return objClassType pcep rsvp error spec object class type |
| 111 | */ |
| 112 | public byte getObjClassType() { |
| 113 | return this.objClassType; |
| 114 | } |
| 115 | |
| 116 | /** |
| 117 | * Writes the byte stream of PcepRsvpObjectHeader to channel buffer. |
| 118 | * |
| 119 | * @param bb of type channel buffer |
| 120 | * @return object length index |
| 121 | */ |
| 122 | public int write(ChannelBuffer bb) { |
| 123 | int objLenIndex = bb.writerIndex(); |
| 124 | bb.writeShort(objLen); |
| 125 | bb.writeByte(objClassNum); |
| 126 | bb.writeByte(objClassType); |
| 127 | return bb.writerIndex() - objLenIndex; |
| 128 | } |
| 129 | |
| 130 | /** |
| 131 | * Reads the PcepRsvpObjectHeader. |
| 132 | * |
| 133 | * @param bb of type channel buffer |
| 134 | * @return PcepRsvpObjectHeader |
| 135 | */ |
| 136 | public static PcepRsvpSpecObjHeader read(ChannelBuffer bb) { |
| 137 | byte objClassNum; |
| 138 | byte objClassType; |
| 139 | short objLen; |
| 140 | objLen = bb.readShort(); |
| 141 | objClassNum = bb.readByte(); |
| 142 | objClassType = bb.readByte(); |
| 143 | |
| 144 | return new PcepRsvpSpecObjHeader(objLen, objClassNum, objClassType); |
| 145 | } |
| 146 | |
| 147 | /** |
| 148 | * Prints the attribute of PcepRsvpObjectHeader. |
| 149 | */ |
| 150 | public void print() { |
| 151 | |
| 152 | log.debug("PcepObjectHeader"); |
| 153 | log.debug("Object Class-Num: " + objClassNum); |
| 154 | log.debug("Object C-Type: " + objClassType); |
| 155 | log.debug("Object Length: " + objLen); |
| 156 | } |
| 157 | @Override |
| 158 | public String toString() { |
| 159 | return MoreObjects.toStringHelper(getClass()) |
| 160 | .add("Object Class-Num: " , objClassNum) |
| 161 | .add("Object C-Type: " , objClassType) |
| 162 | .add("Object Length: " , objLen) |
| 163 | .toString(); |
| 164 | } |
| 165 | } |