bharat saraswal | f7364db | 2015-08-11 13:39:31 +0530 | [diff] [blame] | 1 | /*
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| 2 | * Copyright 2015 Open Networking Laboratory
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| 3 | *
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 5 | * you may not use this file except in compliance with the License.
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| 6 | * You may obtain a copy of the License at
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| 7 | *
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0
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| 9 | *
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| 10 | * Unless required by applicable law or agreed to in writing, software
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 13 | * See the License for the specific language governing permissions and
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| 14 | * limitations under the License.
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| 15 | */
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| 16 | package org.onosproject.pcepio.types;
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| 17 |
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| 18 | import org.jboss.netty.buffer.ChannelBuffer;
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| 19 | import org.onosproject.pcepio.protocol.PcepVersion;
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| 20 |
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| 21 | import com.google.common.base.MoreObjects;
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| 22 |
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Phanendra Manda | 51fb9c2 | 2015-09-01 16:17:41 +0530 | [diff] [blame^] | 23 | /**
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| 24 | * Provides Pcep Rsvp Ipv4 Error Spec.
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| 25 | */
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bharat saraswal | f7364db | 2015-08-11 13:39:31 +0530 | [diff] [blame] | 26 | public class PcepRsvpIpv4ErrorSpec implements PcepRsvpErrorSpec {
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| 27 |
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| 28 | /*
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| 29 | RSVP error spec object header.
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| 30 | 0 1 2 3
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| 31 | +-------------+-------------+-------------+-------------+
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| 32 | | Length (bytes) | Class-Num | C-Type |
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| 33 | +-------------+-------------+-------------+-------------+
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| 34 | | |
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| 35 | // (Object contents) //
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| 36 | | |
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| 37 | +-------------+-------------+-------------+-------------+
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| 38 |
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| 39 | Ref : ERROR_SPEC @ RFC2205
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| 40 |
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| 41 | IPv4 ERROR_SPEC object: Class = 6, C-Type = 1
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| 42 | +-------------+-------------+-------------+-------------+
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| 43 | | IPv4 Error Node Address (4 bytes) |
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| 44 | +-------------+-------------+-------------+-------------+
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| 45 | | Flags | Error Code | Error Value |
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| 46 | +-------------+-------------+-------------+-------------+
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| 47 |
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| 48 | */
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| 49 |
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| 50 | PcepRsvpSpecObjHeader objHeader;
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| 51 | public static final byte CLASS_NUM = 0x06;
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| 52 | public static final byte CLASS_TYPE = 0x01;
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| 53 | public static final byte CLASS_LENGTH = 0x0c;
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| 54 | private int ipv4Addr;
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| 55 | private byte flags;
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| 56 | private byte errCode;
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| 57 | private short errValue;
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| 58 |
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| 59 | /**
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| 60 | * Constructor to initialize obj header, ipv4 addr, flags, err code and err value.
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| 61 | *
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| 62 | * @param objHeader rsvp ipv4 error spec object header
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| 63 | * @param ipv4Addr ipv4 address
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| 64 | * @param flags flags value
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| 65 | * @param errCode error code value
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| 66 | * @param errValue error value
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| 67 | */
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| 68 | public PcepRsvpIpv4ErrorSpec(PcepRsvpSpecObjHeader objHeader, int ipv4Addr, byte flags, byte errCode,
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| 69 | short errValue) {
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| 70 | this.objHeader = objHeader;
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| 71 | this.ipv4Addr = ipv4Addr;
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| 72 | this.flags = flags;
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| 73 | this.errCode = errCode;
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| 74 | this.errValue = errValue;
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| 75 | }
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| 76 |
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| 77 | /**
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| 78 | * Constructor to initialize ipv4 address, flags, err code and err value.
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| 79 | *
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| 80 | * @param ipv4Addr ipv4 address
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| 81 | * @param flags flags value
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| 82 | * @param errCode error code
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| 83 | * @param errValue error value
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| 84 | */
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| 85 | public PcepRsvpIpv4ErrorSpec(int ipv4Addr, byte flags, byte errCode, short errValue) {
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| 86 | this.objHeader = new PcepRsvpSpecObjHeader(CLASS_LENGTH, CLASS_NUM, CLASS_TYPE);
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| 87 | this.ipv4Addr = ipv4Addr;
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| 88 | this.flags = flags;
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| 89 | this.errCode = errCode;
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| 90 | this.errValue = errValue;
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| 91 | }
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| 92 |
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| 93 | @Override
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| 94 | public int write(ChannelBuffer cb) {
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| 95 | int objLenIndex = objHeader.write(cb);
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| 96 | cb.writeInt(ipv4Addr);
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| 97 | cb.writeByte(flags);
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| 98 | cb.writeByte(errCode);
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| 99 | cb.writeShort(errValue);
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| 100 | short objLen = (short) (cb.writerIndex() - objLenIndex);
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| 101 | cb.setShort(objLenIndex, objLen);
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| 102 | return objLen;
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| 103 | }
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| 104 |
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| 105 | /**
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| 106 | * Reads PCPE RSVP error spec from channel buffer and returns PCEP rsvp IPv4 error spec object.
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| 107 | *
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| 108 | * @param cb channel buffer
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| 109 | * @return PCEP rsvp IPv4 error spec object
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| 110 | */
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| 111 | public static PcepRsvpErrorSpec read(ChannelBuffer cb) {
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| 112 | PcepRsvpSpecObjHeader objHeader;
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| 113 | int ipv4Addr;
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| 114 | byte flags;
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| 115 | byte errCode;
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| 116 | short errValue;
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| 117 |
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| 118 | objHeader = PcepRsvpSpecObjHeader.read(cb);
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| 119 | ipv4Addr = cb.readInt();
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| 120 | flags = cb.readByte();
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| 121 | errCode = cb.readByte();
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| 122 | errValue = cb.readShort();
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| 123 | return new PcepRsvpIpv4ErrorSpec(objHeader, ipv4Addr, flags, errCode, errValue);
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| 124 | }
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| 125 |
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| 126 | @Override
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| 127 | public PcepVersion getVersion() {
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| 128 | return PcepVersion.PCEP_1;
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| 129 | }
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| 130 |
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| 131 | @Override
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| 132 | public short getType() {
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| 133 | return StatefulRsvpErrorSpecTlv.TYPE;
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| 134 | }
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| 135 |
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| 136 | @Override
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| 137 | public short getLength() {
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| 138 | return CLASS_LENGTH;
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| 139 | }
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| 140 |
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| 141 | @Override
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| 142 | public byte getClassNum() {
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| 143 | return CLASS_NUM;
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| 144 | }
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| 145 |
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| 146 | @Override
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| 147 | public byte getClassType() {
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| 148 | return CLASS_TYPE;
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| 149 | }
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| 150 |
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| 151 | @Override
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bharat saraswal | f7364db | 2015-08-11 13:39:31 +0530 | [diff] [blame] | 152 | public String toString() {
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| 153 | return MoreObjects.toStringHelper(getClass())
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bharat saraswal | e180630 | 2015-08-21 12:16:46 +0530 | [diff] [blame] | 154 | .add("IPv4Address:", ipv4Addr)
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bharat saraswal | f7364db | 2015-08-11 13:39:31 +0530 | [diff] [blame] | 155 | .add("flags:", flags)
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bharat saraswal | e180630 | 2015-08-21 12:16:46 +0530 | [diff] [blame] | 156 | .add("errorCode:", errCode)
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| 157 | .add("errorValue:", errValue)
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bharat saraswal | f7364db | 2015-08-11 13:39:31 +0530 | [diff] [blame] | 158 | .toString();
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| 159 | }
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| 160 | }
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