Shashikanth VH | fe2fb20 | 2016-02-05 18:45:07 +0530 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016 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 | |
| 17 | package org.onosproject.bgpio.protocol.flowspec; |
| 18 | |
| 19 | import java.util.Objects; |
| 20 | import org.onlab.packet.IpPrefix; |
| 21 | import org.slf4j.Logger; |
| 22 | import org.slf4j.LoggerFactory; |
| 23 | import java.nio.ByteBuffer; |
| 24 | |
| 25 | import com.google.common.base.MoreObjects; |
| 26 | |
| 27 | /** |
| 28 | * Provides BGP flow specification rule index. |
| 29 | */ |
| 30 | public class BgpFlowSpecPrefix implements Comparable<Object> { |
| 31 | |
| 32 | private static final Logger log = LoggerFactory.getLogger(BgpFlowSpecPrefix.class); |
| 33 | |
| 34 | private final IpPrefix destinationPrefix; |
| 35 | private final IpPrefix sourcePrefix; |
| 36 | |
| 37 | /** |
| 38 | * Constructor to initialize parameters. |
| 39 | * |
| 40 | * @param destinationPrefix destination prefix |
| 41 | * @param sourcePrefix source prefix |
| 42 | */ |
| 43 | public BgpFlowSpecPrefix(IpPrefix destinationPrefix, IpPrefix sourcePrefix) { |
| 44 | this.destinationPrefix = destinationPrefix; |
| 45 | this.sourcePrefix = sourcePrefix; |
| 46 | } |
| 47 | |
| 48 | @Override |
| 49 | public int hashCode() { |
| 50 | return Objects.hash(destinationPrefix, sourcePrefix); |
| 51 | } |
| 52 | |
| 53 | @Override |
| 54 | public boolean equals(Object obj) { |
| 55 | if (this == obj) { |
| 56 | return true; |
| 57 | } |
| 58 | |
| 59 | if (obj instanceof BgpFlowSpecPrefix) { |
| 60 | BgpFlowSpecPrefix other = (BgpFlowSpecPrefix) obj; |
| 61 | |
| 62 | if (this.destinationPrefix.equals(other.destinationPrefix)) { |
| 63 | return this.sourcePrefix.equals(other.sourcePrefix); |
| 64 | } |
| 65 | return false; |
| 66 | } |
| 67 | return false; |
| 68 | } |
| 69 | |
| 70 | /** |
| 71 | * Returns destination prefix. |
| 72 | * |
| 73 | * @return destination prefix |
| 74 | */ |
| 75 | public IpPrefix destinationPrefix() { |
| 76 | return this.destinationPrefix; |
| 77 | } |
| 78 | |
| 79 | /** |
| 80 | * Returns source prefix. |
| 81 | * |
| 82 | * @return source prefix |
| 83 | */ |
| 84 | public IpPrefix sourcePrefix() { |
| 85 | return this.sourcePrefix; |
| 86 | } |
| 87 | |
| 88 | @Override |
| 89 | public String toString() { |
| 90 | return MoreObjects.toStringHelper(getClass()).omitNullValues() |
| 91 | .add("destinationPrefix", destinationPrefix) |
| 92 | .add("sourcePrefix", destinationPrefix) |
| 93 | .toString(); |
| 94 | } |
| 95 | |
| 96 | /** |
| 97 | * Compares this and o object. |
| 98 | * |
| 99 | * @param o object to be compared with this object |
| 100 | * @return which object is greater |
| 101 | */ |
| 102 | public int compareTo(Object o) { |
| 103 | if (this.equals(o)) { |
| 104 | return 0; |
| 105 | } |
| 106 | |
| 107 | if (o instanceof BgpFlowSpecPrefix) { |
| 108 | BgpFlowSpecPrefix that = (BgpFlowSpecPrefix) o; |
| 109 | |
| 110 | if (this.destinationPrefix().prefixLength() == that.destinationPrefix().prefixLength()) { |
| 111 | ByteBuffer value1 = ByteBuffer.wrap(this.destinationPrefix().address().toOctets()); |
| 112 | ByteBuffer value2 = ByteBuffer.wrap(that.destinationPrefix().address().toOctets()); |
| 113 | int cmpVal = value1.compareTo(value2); |
| 114 | if (cmpVal != 0) { |
| 115 | return cmpVal; |
| 116 | } |
| 117 | } else { |
| 118 | if (this.destinationPrefix().prefixLength() > that.destinationPrefix().prefixLength()) { |
| 119 | return 1; |
| 120 | } else if (this.destinationPrefix().prefixLength() < that.destinationPrefix().prefixLength()) { |
| 121 | return -1; |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | if (this.sourcePrefix().prefixLength() == that.sourcePrefix().prefixLength()) { |
| 126 | ByteBuffer value1 = ByteBuffer.wrap(this.sourcePrefix().address().toOctets()); |
| 127 | ByteBuffer value2 = ByteBuffer.wrap(that.sourcePrefix().address().toOctets()); |
| 128 | return value1.compareTo(value2); |
| 129 | } |
| 130 | |
| 131 | if (this.sourcePrefix().prefixLength() > that.sourcePrefix().prefixLength()) { |
| 132 | return 1; |
| 133 | } else if (this.sourcePrefix().prefixLength() < that.sourcePrefix().prefixLength()) { |
| 134 | return -1; |
| 135 | } |
| 136 | } |
| 137 | return 1; |
| 138 | } |
| 139 | } |