Phaneendra Manda | 1c0061d | 2015-08-06 12:29:38 +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 | |
bharat saraswal | f7364db | 2015-08-11 13:39:31 +0530 | [diff] [blame] | 23 | import com.google.common.base.MoreObjects; |
| 24 | |
Phaneendra Manda | 1c0061d | 2015-08-06 12:29:38 +0530 | [diff] [blame] | 25 | /** |
| 26 | * Provides PcepRsvpObjectHeader. |
| 27 | */ |
| 28 | public class PcepRsvpObjectHeader { |
| 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 |
bharat saraswal | f7364db | 2015-08-11 13:39:31 +0530 | [diff] [blame] | 41 | */ |
Phaneendra Manda | 1c0061d | 2015-08-06 12:29:38 +0530 | [diff] [blame] | 42 | |
| 43 | protected static final Logger log = LoggerFactory.getLogger(PcepRsvpObjectHeader.class); |
| 44 | |
| 45 | public static final boolean REQ_OBJ_MUST_PROCESS = true; |
| 46 | public static final boolean REQ_OBJ_OPTIONAL_PROCESS = false; |
| 47 | public static final boolean RSP_OBJ_IGNORED = true; |
| 48 | public static final boolean RSP_OBJ_PROCESSED = false; |
| 49 | public static final int OBJECT_TYPE_SHIFT_VALUE = 4; |
| 50 | private byte objClassNum; |
| 51 | private byte objClassType; |
| 52 | private short objLen; |
| 53 | |
| 54 | /** |
bharat saraswal | e180630 | 2015-08-21 12:16:46 +0530 | [diff] [blame] | 55 | * Constructor to initialize class num, length and type. |
Phaneendra Manda | 1c0061d | 2015-08-06 12:29:38 +0530 | [diff] [blame] | 56 | * |
| 57 | * @param objClassNum object class number |
| 58 | * @param objClassType object class type |
| 59 | * @param objLen object length |
| 60 | */ |
| 61 | public PcepRsvpObjectHeader(byte objClassNum, byte objClassType, short objLen) { |
| 62 | this.objClassNum = objClassNum; |
| 63 | this.objClassType = objClassType; |
| 64 | this.objLen = objLen; |
| 65 | } |
| 66 | |
| 67 | /** |
bharat saraswal | e180630 | 2015-08-21 12:16:46 +0530 | [diff] [blame] | 68 | * Sets the Class-Num. |
Phaneendra Manda | 1c0061d | 2015-08-06 12:29:38 +0530 | [diff] [blame] | 69 | * |
| 70 | * @param value object class number |
| 71 | */ |
| 72 | public void setObjClassNum(byte value) { |
| 73 | this.objClassNum = value; |
| 74 | } |
| 75 | |
| 76 | /** |
| 77 | * Sets the Class type. |
| 78 | * |
| 79 | * @param value object class type |
| 80 | */ |
| 81 | public void setObjClassType(byte value) { |
| 82 | this.objClassType = value; |
| 83 | } |
| 84 | |
| 85 | /** |
| 86 | * Sets the Class Length. |
| 87 | * |
| 88 | * @param value object length |
| 89 | */ |
| 90 | public void setObjLen(short value) { |
| 91 | this.objLen = value; |
| 92 | } |
| 93 | |
| 94 | /** |
| 95 | * Returns Object Length. |
| 96 | * |
| 97 | * @return objLen |
| 98 | */ |
| 99 | public short getObjLen() { |
| 100 | return this.objLen; |
| 101 | } |
| 102 | |
| 103 | /** |
| 104 | * Returns Object num. |
| 105 | * |
| 106 | * @return objClassNum |
| 107 | */ |
| 108 | public byte getObjClassNum() { |
| 109 | return this.objClassNum; |
| 110 | } |
| 111 | |
| 112 | /** |
| 113 | * Returns Object type. |
| 114 | * |
| 115 | * @return objClassType |
| 116 | */ |
| 117 | public byte getObjClassType() { |
| 118 | return this.objClassType; |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * Writes the byte stream of PcepRsvpObjectHeader to channel buffer. |
| 123 | * |
bharat saraswal | e180630 | 2015-08-21 12:16:46 +0530 | [diff] [blame] | 124 | * @param cb of type channel buffer |
Phaneendra Manda | 1c0061d | 2015-08-06 12:29:38 +0530 | [diff] [blame] | 125 | * @return object length index in channel buffer |
| 126 | */ |
bharat saraswal | e180630 | 2015-08-21 12:16:46 +0530 | [diff] [blame] | 127 | public int write(ChannelBuffer cb) { |
| 128 | int iLenStartIndex = cb.writerIndex(); |
| 129 | cb.writeShort((short) 0); |
| 130 | cb.writeByte(this.objClassNum); |
| 131 | cb.writeByte(this.objClassType); |
| 132 | return cb.writerIndex() - iLenStartIndex; |
Phaneendra Manda | 1c0061d | 2015-08-06 12:29:38 +0530 | [diff] [blame] | 133 | } |
| 134 | |
| 135 | /** |
| 136 | * Reads the PcepRsvpObjectHeader. |
| 137 | * |
bharat saraswal | e180630 | 2015-08-21 12:16:46 +0530 | [diff] [blame] | 138 | * @param cb input channel buffer |
Phaneendra Manda | 1c0061d | 2015-08-06 12:29:38 +0530 | [diff] [blame] | 139 | * @return PcepRsvpObjectHeader |
| 140 | */ |
bharat saraswal | e180630 | 2015-08-21 12:16:46 +0530 | [diff] [blame] | 141 | public static PcepRsvpObjectHeader read(ChannelBuffer cb) { |
| 142 | log.debug("read "); |
Phaneendra Manda | 1c0061d | 2015-08-06 12:29:38 +0530 | [diff] [blame] | 143 | byte objClassNum; |
| 144 | byte objClassType; |
| 145 | short objLen; |
bharat saraswal | e180630 | 2015-08-21 12:16:46 +0530 | [diff] [blame] | 146 | objLen = cb.readShort(); |
| 147 | objClassNum = cb.readByte(); |
| 148 | objClassType = cb.readByte(); |
Phaneendra Manda | 1c0061d | 2015-08-06 12:29:38 +0530 | [diff] [blame] | 149 | |
| 150 | return new PcepRsvpObjectHeader(objClassNum, objClassType, objLen); |
| 151 | } |
| 152 | |
bharat saraswal | f7364db | 2015-08-11 13:39:31 +0530 | [diff] [blame] | 153 | @Override |
| 154 | public String toString() { |
Sho SHIMIZU | 7cdbcf7 | 2015-09-03 14:43:05 -0700 | [diff] [blame] | 155 | return MoreObjects.toStringHelper(getClass()) |
| 156 | .add("ObjectClassNum", objClassNum) |
| 157 | .add("ObjectCType", objClassType) |
| 158 | .add("ObjectLength", objLen) |
| 159 | .toString(); |
bharat saraswal | f7364db | 2015-08-11 13:39:31 +0530 | [diff] [blame] | 160 | } |
Phaneendra Manda | 1c0061d | 2015-08-06 12:29:38 +0530 | [diff] [blame] | 161 | } |