Mohammad Shahid | 30fedc5 | 2017-08-09 11:49:40 +0530 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2017-present Open Networking Foundation |
| 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 | |
| 17 | package org.onosproject.bgpio.types; |
| 18 | |
| 19 | import com.google.common.base.MoreObjects; |
Yuta HIGUCHI | 1edc36b | 2018-01-24 23:39:06 -0800 | [diff] [blame^] | 20 | |
| 21 | import java.util.Arrays; |
| 22 | import java.util.Objects; |
| 23 | |
Mohammad Shahid | 30fedc5 | 2017-08-09 11:49:40 +0530 | [diff] [blame] | 24 | import org.jboss.netty.buffer.ChannelBuffer; |
| 25 | |
| 26 | /** |
| 27 | * Implementation of RouteTarget. |
| 28 | */ |
| 29 | public class RouteTarget implements BgpValueType { |
| 30 | |
| 31 | /* |
| 32 | * Type 0x00: Local Administrator sub-field uses 2 octets with AS number and |
| 33 | * Assigned number uses 4 octests Type 0x01: Local Administrator sub-field |
| 34 | * uses 4 octets with IP address and Assigned number uses 2 octests Type |
| 35 | * 0x02: Local Administrator sub-field uses 4 octets with AS number and |
| 36 | * Assigned number uses 2 octests |
| 37 | */ |
| 38 | private byte[] routeTarget; |
| 39 | private short type; |
| 40 | |
| 41 | public enum RouteTargetype { |
| 42 | |
| 43 | AS((short) 0x0002), IP((short) 0x0102), LARGEAS((short) 0x0202); |
| 44 | short value; |
| 45 | |
| 46 | /** |
| 47 | * Assign val with the value as the tunnel type. |
| 48 | * |
| 49 | * @param val tunnel type |
| 50 | */ |
| 51 | RouteTargetype(short val) { |
| 52 | value = val; |
| 53 | } |
| 54 | |
| 55 | /** |
| 56 | * Returns value of route type. |
| 57 | * |
| 58 | * @return route type |
| 59 | */ |
| 60 | public short getType() { |
| 61 | return value; |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | /** |
| 66 | * Resets fields. |
| 67 | */ |
| 68 | public RouteTarget() { |
| 69 | this.type = 0; |
| 70 | this.routeTarget = null; |
| 71 | } |
| 72 | |
| 73 | /** |
| 74 | * Constructor to initialize parameters. |
| 75 | * |
| 76 | * @param type type |
| 77 | * @param routeTarget route target |
| 78 | */ |
| 79 | public RouteTarget(short type, byte[] routeTarget) { |
| 80 | this.type = type; |
| 81 | this.routeTarget = routeTarget; |
| 82 | } |
| 83 | |
| 84 | /** |
| 85 | * Reads route target from channelBuffer. |
| 86 | * |
| 87 | * @param type type |
| 88 | * @param cb channelBuffer |
| 89 | * @return object of RouteTarget |
| 90 | */ |
| 91 | public static RouteTarget read(short type, ChannelBuffer cb) { |
| 92 | return new RouteTarget(type, cb.readBytes(6).array()); |
| 93 | } |
| 94 | |
| 95 | /** |
| 96 | * Returns route target. |
| 97 | * |
| 98 | * @return route target |
| 99 | */ |
| 100 | public byte[] getRouteTarget() { |
| 101 | return this.routeTarget; |
| 102 | } |
| 103 | |
| 104 | @Override |
| 105 | public boolean equals(Object obj) { |
| 106 | if (this == obj) { |
| 107 | return true; |
| 108 | } |
| 109 | |
| 110 | if (obj instanceof RouteTarget) { |
| 111 | RouteTarget that = (RouteTarget) obj; |
| 112 | if (this.type == that.type |
Yuta HIGUCHI | 1edc36b | 2018-01-24 23:39:06 -0800 | [diff] [blame^] | 113 | && Arrays.equals(this.routeTarget, that.routeTarget)) { |
Mohammad Shahid | 30fedc5 | 2017-08-09 11:49:40 +0530 | [diff] [blame] | 114 | return true; |
| 115 | } |
| 116 | } |
| 117 | return false; |
| 118 | } |
| 119 | |
| 120 | @Override |
| 121 | public int hashCode() { |
Yuta HIGUCHI | 1edc36b | 2018-01-24 23:39:06 -0800 | [diff] [blame^] | 122 | return Objects.hash(type, Arrays.hashCode(routeTarget)); |
Mohammad Shahid | 30fedc5 | 2017-08-09 11:49:40 +0530 | [diff] [blame] | 123 | } |
| 124 | |
| 125 | @Override |
| 126 | public String toString() { |
| 127 | return MoreObjects.toStringHelper(getClass()).add("type", type) |
| 128 | .add("routeTarget", routeTarget).toString(); |
| 129 | } |
| 130 | |
| 131 | @Override |
| 132 | public short getType() { |
| 133 | return type; |
| 134 | } |
| 135 | |
| 136 | @Override |
| 137 | public int write(ChannelBuffer cb) { |
| 138 | int iLenStartIndex = cb.writerIndex(); |
| 139 | cb.writeShort(type); |
| 140 | cb.writeBytes(routeTarget); |
| 141 | return cb.writerIndex() - iLenStartIndex; |
| 142 | } |
| 143 | |
| 144 | @Override |
| 145 | public int compareTo(Object rd) { |
| 146 | return 0; |
| 147 | } |
| 148 | } |