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 | import com.google.common.base.MoreObjects.ToStringHelper;
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| 27 |
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| 28 | /**
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| 29 | * Provides ISIS Area Identifier.
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| 30 | */
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| 31 | public class ISISAreaIdentifierTlv implements PcepValueType {
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| 32 |
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| 33 | /* Reference :[I-D.ietf-idr- ls-distribution]/3.3.1.2
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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=[TBD24] | Length |
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| 38 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| 39 | // Area Identifier (variable) //
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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(ISISAreaIdentifierTlv.class);
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| 44 |
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| 45 | public static final short TYPE = 107; //TODO:NEED TO HANDLE TBD24
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| 46 | private short hLength;
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| 47 |
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| 48 | private final byte[] rawValue;
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| 49 |
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| 50 | /**
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| 51 | * Constructor to initialize rawValue.
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| 52 | *
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| 53 | * @param rawValue ISIS-Area-Identifier
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| 54 | * @param hLength length
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| 55 | */
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| 56 | public ISISAreaIdentifierTlv(byte[] rawValue, short hLength) {
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| 57 | log.debug("ISISAreaIdentifierTlv");
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| 58 | this.rawValue = rawValue;
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| 59 | if (0 == hLength) {
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| 60 | this.hLength = (short) rawValue.length;
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| 61 | } else {
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| 62 | this.hLength = hLength;
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| 63 | }
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| 64 | }
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| 65 |
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| 66 | /**
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| 67 | * Returns newly created ISISAreaIdentifierTlv object.
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| 68 | *
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| 69 | * @param raw ISIS-Area-Identifier
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| 70 | * @param hLength length
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| 71 | * @return object of ISISAreaIdentifierTlv
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| 72 | */
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| 73 | public static ISISAreaIdentifierTlv of(final byte[] raw, short hLength) {
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| 74 | return new ISISAreaIdentifierTlv(raw, hLength);
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| 75 | }
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| 76 |
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| 77 | /**
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| 78 | * Returns value of ISIS-Area-Identifier.
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| 79 | *
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| 80 | * @return byte array of rawValue
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| 81 | */
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| 82 | public byte[] getValue() {
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| 83 | return rawValue;
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| 84 | }
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| 85 |
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| 86 | @Override
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| 87 | public PcepVersion getVersion() {
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| 88 | return PcepVersion.PCEP_1;
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| 89 | }
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| 90 |
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| 91 | @Override
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| 92 | public short getType() {
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| 93 | return TYPE;
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| 94 | }
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| 95 |
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| 96 | @Override
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| 97 | public short getLength() {
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| 98 | return hLength;
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| 99 | }
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| 100 |
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| 101 | @Override
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| 102 | public int hashCode() {
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| 103 | return Objects.hash(rawValue);
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| 104 | }
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| 105 |
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| 106 | @Override
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| 107 | public boolean equals(Object obj) {
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| 108 | if (this == obj) {
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| 109 | return true;
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| 110 | }
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| 111 | if (obj instanceof ISISAreaIdentifierTlv) {
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| 112 | ISISAreaIdentifierTlv other = (ISISAreaIdentifierTlv) obj;
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| 113 | return Objects.equals(hLength, other.hLength) && Objects.equals(rawValue, other.rawValue);
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| 114 | }
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| 115 | return false;
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| 116 | }
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| 117 |
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| 118 | @Override
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| 119 | public int write(ChannelBuffer c) {
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| 120 | int iLenStartIndex = c.writerIndex();
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| 121 | c.writeShort(TYPE);
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| 122 | c.writeShort(hLength);
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| 123 | c.writeBytes(rawValue);
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| 124 | return c.writerIndex() - iLenStartIndex;
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| 125 | }
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| 126 |
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| 127 | /**
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| 128 | * Reads the channel buffer and returns object of ISISAreaIdentifierTlv.
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| 129 | *
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| 130 | * @param c input channel buffer
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| 131 | * @param hLength length
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| 132 | * @return object of ISISAreaIdentifierTlv
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| 133 | */
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| 134 | public static PcepValueType read(ChannelBuffer c, short hLength) {
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| 135 | byte[] iISISAreaIdentifier = new byte[hLength];
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| 136 | c.readBytes(iISISAreaIdentifier, 0, hLength);
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| 137 | return new ISISAreaIdentifierTlv(iISISAreaIdentifier, hLength);
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| 138 | }
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| 139 |
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| 140 | @Override
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| 141 | public String toString() {
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| 142 | ToStringHelper toStrHelper = MoreObjects.toStringHelper(getClass());
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| 143 |
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| 144 | toStrHelper.add("Type", TYPE);
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| 145 | toStrHelper.add("Length", hLength);
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| 146 |
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| 147 | StringBuffer result = new StringBuffer();
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| 148 | for (byte b : rawValue) {
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| 149 | result.append(String.format("%02X ", b));
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| 150 | }
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| 151 | toStrHelper.add("Value", result);
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| 152 |
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| 153 | return toStrHelper.toString();
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| 154 | }
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| 155 | }
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