Sho SHIMIZU | e81e4db | 2015-09-03 09:44:38 -0700 | [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 | package org.onosproject.pcepio.types; |
| 17 | |
| 18 | import org.jboss.netty.buffer.ChannelBuffer; |
| 19 | import org.onosproject.pcepio.protocol.PcepVersion; |
| 20 | |
| 21 | import com.google.common.base.MoreObjects; |
| 22 | |
| 23 | /** |
| 24 | * Provides Pcep Rsvp Ipv4 Error Spec. |
| 25 | */ |
| 26 | public class PcepRsvpIpv4ErrorSpec implements PcepRsvpErrorSpec { |
| 27 | |
| 28 | /* |
| 29 | RSVP error spec object header. |
| 30 | 0 1 2 3 |
| 31 | +-------------+-------------+-------------+-------------+ |
| 32 | | Length (bytes) | Class-Num | C-Type | |
| 33 | +-------------+-------------+-------------+-------------+ |
| 34 | | | |
| 35 | // (Object contents) // |
| 36 | | | |
| 37 | +-------------+-------------+-------------+-------------+ |
| 38 | |
| 39 | Ref : ERROR_SPEC @ RFC2205 |
| 40 | |
| 41 | IPv4 ERROR_SPEC object: Class = 6, C-Type = 1 |
| 42 | +-------------+-------------+-------------+-------------+ |
| 43 | | IPv4 Error Node Address (4 bytes) | |
| 44 | +-------------+-------------+-------------+-------------+ |
| 45 | | Flags | Error Code | Error Value | |
| 46 | +-------------+-------------+-------------+-------------+ |
| 47 | |
| 48 | */ |
| 49 | |
| 50 | PcepRsvpSpecObjHeader objHeader; |
| 51 | public static final byte CLASS_NUM = 0x06; |
| 52 | public static final byte CLASS_TYPE = 0x01; |
| 53 | public static final byte CLASS_LENGTH = 0x0c; |
| 54 | private int ipv4Addr; |
| 55 | private byte flags; |
| 56 | private byte errCode; |
| 57 | private short errValue; |
| 58 | |
| 59 | /** |
| 60 | * Constructor to initialize obj header, ipv4 addr, flags, err code and err value. |
| 61 | * |
| 62 | * @param objHeader rsvp ipv4 error spec object header |
| 63 | * @param ipv4Addr ipv4 address |
| 64 | * @param flags flags value |
| 65 | * @param errCode error code value |
| 66 | * @param errValue error value |
| 67 | */ |
| 68 | public PcepRsvpIpv4ErrorSpec(PcepRsvpSpecObjHeader objHeader, int ipv4Addr, byte flags, byte errCode, |
| 69 | short errValue) { |
| 70 | this.objHeader = objHeader; |
| 71 | this.ipv4Addr = ipv4Addr; |
| 72 | this.flags = flags; |
| 73 | this.errCode = errCode; |
| 74 | this.errValue = errValue; |
| 75 | } |
| 76 | |
| 77 | /** |
| 78 | * Constructor to initialize ipv4 address, flags, err code and err value. |
| 79 | * |
| 80 | * @param ipv4Addr ipv4 address |
| 81 | * @param flags flags value |
| 82 | * @param errCode error code |
| 83 | * @param errValue error value |
| 84 | */ |
| 85 | public PcepRsvpIpv4ErrorSpec(int ipv4Addr, byte flags, byte errCode, short errValue) { |
| 86 | this.objHeader = new PcepRsvpSpecObjHeader(CLASS_LENGTH, CLASS_NUM, CLASS_TYPE); |
| 87 | this.ipv4Addr = ipv4Addr; |
| 88 | this.flags = flags; |
| 89 | this.errCode = errCode; |
| 90 | this.errValue = errValue; |
| 91 | } |
| 92 | |
| 93 | @Override |
| 94 | public int write(ChannelBuffer cb) { |
| 95 | int objLenIndex = objHeader.write(cb); |
| 96 | cb.writeInt(ipv4Addr); |
| 97 | cb.writeByte(flags); |
| 98 | cb.writeByte(errCode); |
| 99 | cb.writeShort(errValue); |
| 100 | short objLen = (short) (cb.writerIndex() - objLenIndex); |
| 101 | cb.setShort(objLenIndex, objLen); |
| 102 | return objLen; |
| 103 | } |
| 104 | |
| 105 | /** |
| 106 | * Reads PCPE RSVP error spec from channel buffer and returns PCEP rsvp IPv4 error spec object. |
| 107 | * |
| 108 | * @param cb channel buffer |
| 109 | * @return PCEP rsvp IPv4 error spec object |
| 110 | */ |
| 111 | public static PcepRsvpErrorSpec read(ChannelBuffer cb) { |
| 112 | PcepRsvpSpecObjHeader objHeader; |
| 113 | int ipv4Addr; |
| 114 | byte flags; |
| 115 | byte errCode; |
| 116 | short errValue; |
| 117 | |
| 118 | objHeader = PcepRsvpSpecObjHeader.read(cb); |
| 119 | ipv4Addr = cb.readInt(); |
| 120 | flags = cb.readByte(); |
| 121 | errCode = cb.readByte(); |
| 122 | errValue = cb.readShort(); |
| 123 | return new PcepRsvpIpv4ErrorSpec(objHeader, ipv4Addr, flags, errCode, errValue); |
| 124 | } |
| 125 | |
| 126 | @Override |
| 127 | public PcepVersion getVersion() { |
| 128 | return PcepVersion.PCEP_1; |
| 129 | } |
| 130 | |
| 131 | @Override |
| 132 | public short getType() { |
| 133 | return StatefulRsvpErrorSpecTlv.TYPE; |
| 134 | } |
| 135 | |
| 136 | @Override |
| 137 | public short getLength() { |
| 138 | return CLASS_LENGTH; |
| 139 | } |
| 140 | |
| 141 | @Override |
| 142 | public byte getClassNum() { |
| 143 | return CLASS_NUM; |
| 144 | } |
| 145 | |
| 146 | @Override |
| 147 | public byte getClassType() { |
| 148 | return CLASS_TYPE; |
| 149 | } |
| 150 | |
| 151 | @Override |
| 152 | public String toString() { |
| 153 | return MoreObjects.toStringHelper(getClass()) |
Sho SHIMIZU | 7cdbcf7 | 2015-09-03 14:43:05 -0700 | [diff] [blame] | 154 | .add("IPv4Address", ipv4Addr) |
| 155 | .add("flags", flags) |
| 156 | .add("errorCode", errCode) |
| 157 | .add("errorValue", errValue) |
Sho SHIMIZU | e81e4db | 2015-09-03 09:44:38 -0700 | [diff] [blame] | 158 | .toString(); |
| 159 | } |
| 160 | } |