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