Mahesh Poojary S | 5afd06c | 2015-08-21 14:51:04 +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 java.util.Objects;
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| 19 |
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| 20 | import org.jboss.netty.buffer.ChannelBuffer;
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| 21 | import org.onosproject.pcepio.protocol.PcepVersion;
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| 22 | import org.slf4j.Logger;
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| 23 | import org.slf4j.LoggerFactory;
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| 24 |
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| 25 | import com.google.common.base.MoreObjects;
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| 26 |
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| 27 | /**
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| 28 | * Provides TED Capability Tlv.
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| 29 | */
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| 30 | public class TedCapabilityTlv implements PcepValueType {
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| 31 |
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| 32 | /*
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| 33 | * Reference :PCEP Extension for Transporting TE Data draft-dhodylee-pce-pcep-te-data-extn-02
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| 34 | * 0 1 2 3
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| 35 | 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
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| 36 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| 37 | | Type=[TBD5] | Length=4 |
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| 38 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| 39 | | Flags |R|
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| 40 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| 41 | */
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| 42 |
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| 43 | protected static final Logger log = LoggerFactory.getLogger(TedCapabilityTlv.class);
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| 44 |
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| 45 | public static final short TYPE = 132; //TODO: need to change this TBD5
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| 46 | public static final short LENGTH = 4;
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| 47 | public static final int SET = 1;
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| 48 | public static final byte RFLAG_CHECK = 0x01;
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| 49 |
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| 50 | private final boolean bRFlag;
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| 51 | private final int rawValue;
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| 52 | private final boolean isRawValueSet;
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| 53 |
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| 54 | /**
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| 55 | * Constructor to initialize raw Value.
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| 56 | *
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| 57 | * @param rawValue Flags
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| 58 | */
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| 59 | public TedCapabilityTlv(final int rawValue) {
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| 60 | this.rawValue = rawValue;
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| 61 | this.isRawValueSet = true;
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| 62 | int temp = rawValue;
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| 63 | temp = temp & RFLAG_CHECK;
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| 64 | if (temp == SET) {
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| 65 | this.bRFlag = true;
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| 66 | } else {
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| 67 | this.bRFlag = false;
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| 68 | }
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| 69 |
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| 70 | }
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| 71 |
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| 72 | /**
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| 73 | * Constructor to initialize bRFlag.
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| 74 | *
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| 75 | * @param bRFlag R-flag
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| 76 | */
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| 77 | public TedCapabilityTlv(boolean bRFlag) {
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| 78 | this.bRFlag = bRFlag;
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| 79 | this.rawValue = 0;
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| 80 | this.isRawValueSet = false;
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| 81 | }
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| 82 |
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| 83 | /**
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| 84 | * Returns R-flag.
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| 85 | *
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| 86 | * @return bRFlag
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| 87 | */
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| 88 | public boolean getbRFlag() {
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| 89 | return bRFlag;
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| 90 | }
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| 91 |
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| 92 | /**
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| 93 | * Returns an object of TedCapabilityTlv.
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| 94 | *
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| 95 | * @param raw value Flags
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| 96 | * @return object of TedCapabilityTlv
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| 97 | */
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| 98 | public static TedCapabilityTlv of(final int raw) {
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| 99 | return new TedCapabilityTlv(raw);
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| 100 | }
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| 101 |
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| 102 | @Override
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| 103 | public PcepVersion getVersion() {
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| 104 | return PcepVersion.PCEP_1;
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| 105 | }
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| 106 |
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| 107 | public int getInt() {
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| 108 | return rawValue;
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| 109 | }
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| 110 |
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| 111 | @Override
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| 112 | public short getType() {
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| 113 | return TYPE;
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| 114 | }
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| 115 |
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| 116 | @Override
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| 117 | public short getLength() {
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| 118 | return LENGTH;
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| 119 | }
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| 120 |
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| 121 | @Override
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| 122 | public int hashCode() {
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| 123 | if (isRawValueSet) {
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| 124 | return Objects.hash(rawValue);
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| 125 | } else {
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| 126 | return Objects.hash(bRFlag);
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| 127 | }
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| 128 | }
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| 129 |
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| 130 | @Override
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| 131 | public boolean equals(Object obj) {
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| 132 | if (this == obj) {
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| 133 | return true;
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| 134 | }
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| 135 | if (obj instanceof TedCapabilityTlv) {
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| 136 | TedCapabilityTlv other = (TedCapabilityTlv) obj;
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| 137 | if (isRawValueSet) {
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| 138 | return Objects.equals(this.rawValue, other.rawValue);
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| 139 | } else {
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| 140 | return Objects.equals(this.bRFlag, other.bRFlag);
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| 141 | }
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| 142 | }
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| 143 | return false;
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| 144 | }
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| 145 |
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| 146 | @Override
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| 147 | public int write(ChannelBuffer c) {
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| 148 | int iStartIndex = c.writerIndex();
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| 149 | int temp = 0;
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| 150 | c.writeShort(TYPE);
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| 151 | c.writeShort(LENGTH);
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| 152 | if (isRawValueSet) {
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| 153 | c.writeInt(rawValue);
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| 154 | } else {
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| 155 | if (bRFlag) {
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| 156 | temp = temp | RFLAG_CHECK;
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| 157 | }
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| 158 | c.writeInt(temp);
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| 159 | }
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| 160 | return c.writerIndex() - iStartIndex;
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| 161 | }
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| 162 |
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| 163 | /**
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| 164 | * Reads channel buffer and returns object of TedCapabilityTlv.
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| 165 | *
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| 166 | * @param c input channel buffer
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| 167 | * @return object of TedCapabilityTlv
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| 168 | */
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| 169 | public static TedCapabilityTlv read(ChannelBuffer c) {
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| 170 | return TedCapabilityTlv.of(c.readInt());
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| 171 | }
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| 172 |
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| 173 | @Override
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| 174 | public String toString() {
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| 175 | return MoreObjects.toStringHelper(getClass()).add("Type", TYPE).add("Length", LENGTH).add("Value", rawValue)
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| 176 | .toString();
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| 177 | }
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| 178 | }
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