Shashikanth VH | 1c9587f | 2016-02-08 14:25:06 +0530 | [diff] [blame] | 1 | /* |
Brian O'Connor | 5ab426f | 2016-04-09 01:19:45 -0700 | [diff] [blame^] | 2 | * Copyright 2016-present Open Networking Laboratory |
Shashikanth VH | 1c9587f | 2016-02-08 14:25:06 +0530 | [diff] [blame] | 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.bgp.controller.impl; |
| 18 | |
| 19 | import java.util.Map; |
| 20 | import java.util.TreeMap; |
| 21 | |
| 22 | import org.onosproject.bgpio.types.RouteDistinguisher; |
| 23 | import org.onosproject.bgpio.protocol.flowspec.BgpFlowSpecDetails; |
| 24 | import org.onosproject.bgpio.protocol.flowspec.BgpFlowSpecPrefix; |
| 25 | |
| 26 | import com.google.common.base.MoreObjects; |
| 27 | |
| 28 | /** |
Shashikanth VH | e3a73bc | 2016-02-22 20:11:31 +0530 | [diff] [blame] | 29 | * Implementation of BGP flow specification RIB. |
Shashikanth VH | 1c9587f | 2016-02-08 14:25:06 +0530 | [diff] [blame] | 30 | */ |
Shashikanth VH | e3a73bc | 2016-02-22 20:11:31 +0530 | [diff] [blame] | 31 | public class BgpFlowSpecRib { |
Shashikanth VH | 1c9587f | 2016-02-08 14:25:06 +0530 | [diff] [blame] | 32 | private Map<BgpFlowSpecPrefix, BgpFlowSpecDetails> flowSpecTree = new TreeMap<>(); |
| 33 | private Map<RouteDistinguisher, Map<BgpFlowSpecPrefix, BgpFlowSpecDetails>> vpnFlowSpecTree = new TreeMap<>(); |
| 34 | |
| 35 | /** |
| 36 | * Returns the BGP flow spec info. |
| 37 | * |
| 38 | * @return BGP flow spec tree |
| 39 | */ |
| 40 | public Map<BgpFlowSpecPrefix, BgpFlowSpecDetails> flowSpecTree() { |
| 41 | return flowSpecTree; |
| 42 | } |
| 43 | |
| 44 | /** |
| 45 | * Gets VPN flowspec tree. |
| 46 | * |
| 47 | * @return vpn flow spec tree |
| 48 | */ |
| 49 | public Map<RouteDistinguisher, Map<BgpFlowSpecPrefix, BgpFlowSpecDetails>> vpnFlowSpecTree() { |
| 50 | return vpnFlowSpecTree; |
| 51 | } |
| 52 | |
| 53 | |
| 54 | /** |
| 55 | * Update BGP flow spec details. |
| 56 | * |
| 57 | * @param prefix prefix Info |
| 58 | * @param flowSpec BGP flow specifications details |
| 59 | */ |
| 60 | public void add(BgpFlowSpecPrefix prefix, BgpFlowSpecDetails flowSpec) { |
| 61 | if (flowSpecTree.containsKey(prefix)) { |
| 62 | flowSpecTree.replace(prefix, flowSpec); |
| 63 | } else { |
| 64 | flowSpecTree.put(prefix, flowSpec); |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | /** |
| 69 | * Removes flow spec. |
| 70 | * |
| 71 | * @param flowSpec BGP flow specification |
| 72 | */ |
| 73 | public void delete(BgpFlowSpecPrefix flowSpec) { |
| 74 | if (flowSpecTree.containsKey(flowSpec)) { |
| 75 | flowSpecTree.remove(flowSpec); |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | /** |
| 80 | * Update BGP flow spec details with routedistinguisher. |
| 81 | * |
| 82 | * @param routeDistinguisher route distinguisher |
| 83 | * @param prefix prefix Info |
| 84 | * @param flowSpec BGP flow specifications details |
| 85 | */ |
| 86 | public void add(RouteDistinguisher routeDistinguisher, BgpFlowSpecPrefix prefix, BgpFlowSpecDetails flowSpec) { |
| 87 | Map<BgpFlowSpecPrefix, BgpFlowSpecDetails> fsTree; |
| 88 | if (!vpnFlowSpecTree.containsKey(routeDistinguisher)) { |
| 89 | |
| 90 | fsTree = new TreeMap<>(); |
| 91 | |
| 92 | vpnFlowSpecTree.put(routeDistinguisher, fsTree); |
| 93 | } else { |
| 94 | fsTree = vpnFlowSpecTree().get(routeDistinguisher); |
| 95 | } |
| 96 | if (fsTree.containsKey(prefix)) { |
| 97 | fsTree.replace(prefix, flowSpec); |
| 98 | } else { |
| 99 | fsTree.put(prefix, flowSpec); |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | /** |
| 104 | * Removes flow spec. |
| 105 | * |
| 106 | * @param routeDistinguisher route distinguisher |
Brian O'Connor | 2f11bb3 | 2016-02-08 16:48:24 -0800 | [diff] [blame] | 107 | * @param flowSpecPrefix BGP flow specification prefix |
Shashikanth VH | 1c9587f | 2016-02-08 14:25:06 +0530 | [diff] [blame] | 108 | */ |
| 109 | public void delete(RouteDistinguisher routeDistinguisher, BgpFlowSpecPrefix flowSpecPrefix) { |
| 110 | if (vpnFlowSpecTree.containsKey(routeDistinguisher)) { |
| 111 | Map<BgpFlowSpecPrefix, BgpFlowSpecDetails> fsTree = vpnFlowSpecTree().get(routeDistinguisher); |
| 112 | fsTree.remove(flowSpecPrefix); |
| 113 | if (fsTree.size() == 0) { |
| 114 | vpnFlowSpecTree.remove(routeDistinguisher); |
| 115 | } |
| 116 | } |
| 117 | } |
| 118 | |
| 119 | @Override |
| 120 | public String toString() { |
| 121 | return MoreObjects.toStringHelper(getClass()) |
| 122 | .omitNullValues() |
| 123 | .add("flowSpecTree", flowSpecTree) |
| 124 | .add("vpnFlowSpecTree", vpnFlowSpecTree) |
| 125 | .toString(); |
| 126 | } |
| 127 | } |