Jonghwan Hyun | 722275f | 2018-05-14 15:44:56 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2018-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 | */ |
Carmelo Cascone | defc74e | 2020-07-17 15:27:02 -0700 | [diff] [blame] | 16 | package org.onosproject.net.behaviour.inbandtelemetry; |
Jonghwan Hyun | 722275f | 2018-05-14 15:44:56 -0700 | [diff] [blame] | 17 | |
Yi Tseng | 4027cac | 2020-10-13 19:15:12 -0700 | [diff] [blame^] | 18 | import com.google.common.base.Objects; |
Carmelo Cascone | defc74e | 2020-07-17 15:27:02 -0700 | [diff] [blame] | 19 | import com.google.common.collect.ImmutableSet; |
Jonghwan Hyun | 722275f | 2018-05-14 15:44:56 -0700 | [diff] [blame] | 20 | import org.onosproject.net.flow.DefaultTrafficSelector; |
| 21 | import org.onosproject.net.flow.TrafficSelector; |
| 22 | |
| 23 | import java.util.HashSet; |
| 24 | import java.util.Set; |
| 25 | |
| 26 | import static com.google.common.base.Preconditions.checkArgument; |
Jonghwan Hyun | 722275f | 2018-05-14 15:44:56 -0700 | [diff] [blame] | 27 | |
Carmelo Cascone | defc74e | 2020-07-17 15:27:02 -0700 | [diff] [blame] | 28 | /** |
| 29 | * Represents a device-level objective to collect INT metadata for packets |
| 30 | * identified by a traffic selector. |
| 31 | */ |
Jonghwan Hyun | 722275f | 2018-05-14 15:44:56 -0700 | [diff] [blame] | 32 | public final class IntObjective { |
| 33 | |
| 34 | private static final int DEFAULT_PRIORITY = 10; |
| 35 | |
| 36 | // TrafficSelector to describe target flows to monitor |
| 37 | private final TrafficSelector selector; |
| 38 | // Set of metadata types to collect |
Carmelo Cascone | defc74e | 2020-07-17 15:27:02 -0700 | [diff] [blame] | 39 | private final ImmutableSet<IntMetadataType> metadataTypes; |
Jonghwan Hyun | 722275f | 2018-05-14 15:44:56 -0700 | [diff] [blame] | 40 | |
| 41 | /** |
| 42 | * Creates an IntObjective. |
| 43 | * |
| 44 | * @param selector the traffic selector that identifies traffic to enable INT |
| 45 | * @param metadataTypes a set of metadata types to collect |
Jonghwan Hyun | 722275f | 2018-05-14 15:44:56 -0700 | [diff] [blame] | 46 | */ |
Carmelo Cascone | defc74e | 2020-07-17 15:27:02 -0700 | [diff] [blame] | 47 | private IntObjective(TrafficSelector selector, Set<IntMetadataType> metadataTypes) { |
Jonghwan Hyun | 722275f | 2018-05-14 15:44:56 -0700 | [diff] [blame] | 48 | this.selector = selector; |
Carmelo Cascone | defc74e | 2020-07-17 15:27:02 -0700 | [diff] [blame] | 49 | this.metadataTypes = ImmutableSet.copyOf(metadataTypes); |
Jonghwan Hyun | 722275f | 2018-05-14 15:44:56 -0700 | [diff] [blame] | 50 | } |
| 51 | |
| 52 | /** |
| 53 | * Returns traffic selector of this objective. |
| 54 | * |
| 55 | * @return traffic selector |
| 56 | */ |
| 57 | public TrafficSelector selector() { |
| 58 | return selector; |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * Returns a set of metadata types specified in this objective. |
| 63 | * |
| 64 | * @return instruction bitmap |
| 65 | */ |
| 66 | public Set<IntMetadataType> metadataTypes() { |
| 67 | return metadataTypes; |
| 68 | } |
| 69 | |
| 70 | /** |
Yi Tseng | c4fb5ce | 2020-08-07 14:58:52 -0700 | [diff] [blame] | 71 | * Returns a new INT objective builder. |
| 72 | * |
| 73 | * @return INT objective builder |
| 74 | */ |
| 75 | public static IntObjective.Builder builder() { |
| 76 | return new Builder(); |
| 77 | } |
| 78 | |
Yi Tseng | 4027cac | 2020-10-13 19:15:12 -0700 | [diff] [blame^] | 79 | @Override |
| 80 | public boolean equals(Object o) { |
| 81 | if (this == o) { |
| 82 | return true; |
| 83 | } |
| 84 | if (o == null || getClass() != o.getClass()) { |
| 85 | return false; |
| 86 | } |
| 87 | IntObjective that = (IntObjective) o; |
| 88 | return Objects.equal(selector, that.selector) && |
| 89 | Objects.equal(metadataTypes, that.metadataTypes); |
| 90 | } |
| 91 | |
| 92 | @Override |
| 93 | public int hashCode() { |
| 94 | return Objects.hashCode(selector, metadataTypes); |
| 95 | } |
| 96 | |
Yi Tseng | c4fb5ce | 2020-08-07 14:58:52 -0700 | [diff] [blame] | 97 | /** |
Jonghwan Hyun | 722275f | 2018-05-14 15:44:56 -0700 | [diff] [blame] | 98 | * An IntObjective builder. |
| 99 | */ |
| 100 | public static final class Builder { |
| 101 | private TrafficSelector selector = DefaultTrafficSelector.emptySelector(); |
Carmelo Cascone | defc74e | 2020-07-17 15:27:02 -0700 | [diff] [blame] | 102 | private final Set<IntMetadataType> metadataTypes = new HashSet<>(); |
Jonghwan Hyun | 722275f | 2018-05-14 15:44:56 -0700 | [diff] [blame] | 103 | |
| 104 | /** |
| 105 | * Assigns a selector to the IntObjective. |
| 106 | * |
| 107 | * @param selector a traffic selector |
| 108 | * @return an IntObjective builder |
| 109 | */ |
| 110 | public IntObjective.Builder withSelector(TrafficSelector selector) { |
| 111 | this.selector = selector; |
| 112 | return this; |
| 113 | } |
| 114 | |
| 115 | /** |
| 116 | * Add a metadata type to the IntObjective. |
| 117 | * |
| 118 | * @param metadataTypes a set of metadata types |
| 119 | * @return an IntObjective builder |
| 120 | */ |
| 121 | public IntObjective.Builder withMetadataTypes(Set<IntMetadataType> metadataTypes) { |
| 122 | this.metadataTypes.addAll(metadataTypes); |
| 123 | return this; |
| 124 | } |
| 125 | |
| 126 | /** |
Jonghwan Hyun | 722275f | 2018-05-14 15:44:56 -0700 | [diff] [blame] | 127 | * Builds the IntObjective. |
| 128 | * |
| 129 | * @return an IntObjective |
| 130 | */ |
| 131 | public IntObjective build() { |
| 132 | checkArgument(!selector.criteria().isEmpty(), "Empty selector cannot match any flow."); |
Jonghwan Hyun | 722275f | 2018-05-14 15:44:56 -0700 | [diff] [blame] | 133 | |
Carmelo Cascone | defc74e | 2020-07-17 15:27:02 -0700 | [diff] [blame] | 134 | return new IntObjective(selector, metadataTypes); |
Jonghwan Hyun | 722275f | 2018-05-14 15:44:56 -0700 | [diff] [blame] | 135 | } |
| 136 | } |
| 137 | } |