Mahesh Poojary S | 5afd06c | 2015-08-21 14:51:04 +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 | package org.onosproject.pcepio.types;
|
| 17 |
|
| 18 | import java.util.Objects;
|
| 19 |
|
| 20 | import org.jboss.netty.buffer.ChannelBuffer;
|
| 21 | import org.onosproject.pcepio.protocol.PcepVersion;
|
| 22 | import org.slf4j.Logger;
|
| 23 | import org.slf4j.LoggerFactory;
|
| 24 |
|
| 25 | import com.google.common.base.MoreObjects;
|
| 26 | import com.google.common.base.MoreObjects.ToStringHelper;
|
| 27 |
|
| 28 | /**
|
| 29 | * Provides SharedRiskLinkGroupTlv.
|
| 30 | */
|
| 31 | public class SharedRiskLinkGroupTlv implements PcepValueType {
|
| 32 |
|
| 33 | /*
|
| 34 | * Reference :[I-D.ietf-idr- Group ls-distribution] /3.3.2.5
|
| 35 | *
|
| 36 | * 0 1 2 3
|
| 37 | 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
|
| 38 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
| 39 | | Type =TDB41 | Length |
|
| 40 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
| 41 | | Shared Risk Link Group Value |
|
| 42 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
| 43 | // ............ //
|
| 44 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
| 45 | | Shared Risk Link Group Value |
|
| 46 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
| 47 | */
|
| 48 |
|
| 49 | protected static final Logger log = LoggerFactory.getLogger(SharedRiskLinkGroupTlv.class);
|
| 50 |
|
| 51 | public static final short TYPE = 1096; //TODO:NEED TO HANDLE TDB41
|
| 52 |
|
| 53 | private final short hLength;
|
| 54 |
|
| 55 | private final int[] srlgValue;
|
| 56 |
|
| 57 | /**
|
| 58 | * Constructor to initialize SRLG value.
|
| 59 | *
|
| 60 | * @param srlgValue Shared Risk Link Group Value
|
| 61 | * @param hLength length
|
| 62 | */
|
| 63 | public SharedRiskLinkGroupTlv(int[] srlgValue, short hLength) {
|
| 64 | this.srlgValue = srlgValue;
|
| 65 | if (0 == hLength) {
|
| 66 | this.hLength = (short) ((srlgValue.length) * 4);
|
| 67 | } else {
|
| 68 | this.hLength = hLength;
|
| 69 | }
|
| 70 | }
|
| 71 |
|
| 72 | /**
|
| 73 | * Returns object of SharedRiskLinkGroupTlv.
|
| 74 | *
|
| 75 | * @param raw value
|
| 76 | * @param hLength length
|
| 77 | * @return object of SharedRiskLinkGroupTlv
|
| 78 | */
|
| 79 | public static SharedRiskLinkGroupTlv of(final int[] raw, short hLength) {
|
| 80 | return new SharedRiskLinkGroupTlv(raw, hLength);
|
| 81 | }
|
| 82 |
|
| 83 | /**
|
| 84 | * Returns SRLG Value.
|
| 85 | *
|
| 86 | * @return srlgValue
|
| 87 | */
|
| 88 | public int[] getValue() {
|
| 89 | return srlgValue;
|
| 90 | }
|
| 91 |
|
| 92 | @Override
|
| 93 | public PcepVersion getVersion() {
|
| 94 | return PcepVersion.PCEP_1;
|
| 95 | }
|
| 96 |
|
| 97 | @Override
|
| 98 | public short getType() {
|
| 99 | return TYPE;
|
| 100 | }
|
| 101 |
|
| 102 | @Override
|
| 103 | public short getLength() {
|
| 104 | return hLength;
|
| 105 | }
|
| 106 |
|
| 107 | @Override
|
| 108 | public int hashCode() {
|
| 109 | return Objects.hash(srlgValue);
|
| 110 | }
|
| 111 |
|
| 112 | @Override
|
| 113 | public boolean equals(Object obj) {
|
| 114 | if (this == obj) {
|
| 115 | return true;
|
| 116 | }
|
| 117 | if (obj instanceof SharedRiskLinkGroupTlv) {
|
| 118 | SharedRiskLinkGroupTlv other = (SharedRiskLinkGroupTlv) obj;
|
| 119 | return Objects.equals(this.srlgValue, other.srlgValue);
|
| 120 | }
|
| 121 | return false;
|
| 122 | }
|
| 123 |
|
| 124 | @Override
|
| 125 | public int write(ChannelBuffer c) {
|
| 126 | int iLenStartIndex = c.writerIndex();
|
| 127 | c.writeShort(TYPE);
|
| 128 | c.writeShort(hLength);
|
| 129 | for (int b : srlgValue) {
|
| 130 | c.writeInt(b);
|
| 131 | }
|
| 132 | return c.writerIndex() - iLenStartIndex;
|
| 133 | }
|
| 134 |
|
| 135 | /**
|
| 136 | * Reads from channel buffer and returns object of SharedRiskLinkGroupTlv.
|
| 137 | *
|
| 138 | * @param c input channel buffer
|
| 139 | * @param hLength length
|
| 140 | * @return object of SharedRiskLinkGroupTlv
|
| 141 | */
|
| 142 | public static PcepValueType read(ChannelBuffer c, short hLength) {
|
| 143 | int iLength = hLength / 4;
|
| 144 | int[] iSharedRiskLinkGroup = new int[iLength];
|
| 145 | for (int i = 0; i < iLength; i++) {
|
| 146 | iSharedRiskLinkGroup[i] = c.readInt();
|
| 147 | }
|
| 148 | return new SharedRiskLinkGroupTlv(iSharedRiskLinkGroup, hLength);
|
| 149 | }
|
| 150 |
|
| 151 |
|
| 152 | @Override
|
| 153 | public String toString() {
|
| 154 | ToStringHelper toStrHelper = MoreObjects.toStringHelper(getClass());
|
| 155 |
|
| 156 | toStrHelper.add("Type", TYPE);
|
| 157 | toStrHelper.add("Length", hLength);
|
| 158 |
|
| 159 | StringBuffer result = new StringBuffer();
|
| 160 | for (int b : srlgValue) {
|
| 161 | result.append(String.format("%02X ", b));
|
| 162 | }
|
| 163 | toStrHelper.add("Value", result);
|
| 164 |
|
| 165 | return toStrHelper.toString();
|
| 166 | }
|
| 167 | }
|