Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016-present 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 | package org.onosproject.store.resource.impl; |
| 17 | |
Sho SHIMIZU | 68e8bfa | 2016-06-08 12:01:31 -0700 | [diff] [blame] | 18 | import com.google.common.base.MoreObjects; |
Sho SHIMIZU | 9cc4a24 | 2016-05-26 12:55:35 -0700 | [diff] [blame] | 19 | import com.google.common.collect.ImmutableSet; |
Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 20 | import com.google.common.collect.Sets; |
| 21 | import org.onosproject.net.resource.DiscreteResource; |
| 22 | import org.onosproject.net.resource.DiscreteResourceCodec; |
| 23 | import org.onosproject.net.resource.DiscreteResourceId; |
Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 24 | import org.onosproject.net.resource.Resources; |
| 25 | |
| 26 | import java.util.LinkedHashMap; |
| 27 | import java.util.LinkedHashSet; |
Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 28 | import java.util.Map; |
Sho SHIMIZU | 68e8bfa | 2016-06-08 12:01:31 -0700 | [diff] [blame] | 29 | import java.util.Objects; |
Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 30 | import java.util.Optional; |
| 31 | import java.util.Set; |
| 32 | import java.util.stream.Collectors; |
| 33 | |
| 34 | /** |
| 35 | * A set of discrete resources that can be encoded as integers. |
| 36 | */ |
| 37 | final class EncodableDiscreteResources implements DiscreteResources { |
| 38 | private static final Codecs CODECS = Codecs.getInstance(); |
| 39 | private final DiscreteResource parent; |
Sho SHIMIZU | e96a9e3 | 2016-06-09 10:36:58 -0700 | [diff] [blame] | 40 | private final Map<Class<?>, EncodedDiscreteResources> map; |
Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 41 | |
| 42 | private static Class<?> getClass(DiscreteResource resource) { |
| 43 | return resource.valueAs(Object.class).map(Object::getClass).get(); |
| 44 | } |
| 45 | |
| 46 | static DiscreteResources of(Set<DiscreteResource> resources) { |
Sho SHIMIZU | 65de961 | 2016-05-19 12:24:20 -0700 | [diff] [blame] | 47 | if (resources.isEmpty()) { |
| 48 | return DiscreteResources.empty(); |
| 49 | } |
| 50 | |
Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 51 | DiscreteResource parent = resources.iterator().next().parent().get(); |
| 52 | return of(parent, resources); |
| 53 | } |
| 54 | |
| 55 | static EncodableDiscreteResources of(DiscreteResource parent, Set<DiscreteResource> resources) { |
| 56 | Map<Class<?>, Set<DiscreteResource>> grouped = resources.stream() |
| 57 | .collect(Collectors.groupingBy(x -> getClass(x), Collectors.toCollection(LinkedHashSet::new))); |
| 58 | |
Sho SHIMIZU | 2795d63 | 2016-05-25 14:10:13 -0700 | [diff] [blame] | 59 | Map<Class<?>, EncodedDiscreteResources> values = new LinkedHashMap<>(); |
Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 60 | for (Map.Entry<Class<?>, Set<DiscreteResource>> entry : grouped.entrySet()) { |
| 61 | DiscreteResourceCodec<?> codec = CODECS.getCodec(entry.getKey()); |
Sho SHIMIZU | 2795d63 | 2016-05-25 14:10:13 -0700 | [diff] [blame] | 62 | values.put(entry.getKey(), EncodedDiscreteResources.of(entry.getValue(), codec)); |
Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 63 | } |
| 64 | |
| 65 | return new EncodableDiscreteResources(parent, values); |
| 66 | } |
| 67 | |
Sho SHIMIZU | e96a9e3 | 2016-06-09 10:36:58 -0700 | [diff] [blame] | 68 | private EncodableDiscreteResources(DiscreteResource parent, Map<Class<?>, EncodedDiscreteResources> map) { |
Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 69 | this.parent = parent; |
Sho SHIMIZU | e96a9e3 | 2016-06-09 10:36:58 -0700 | [diff] [blame] | 70 | this.map = map; |
Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 71 | } |
| 72 | |
| 73 | // for serializer |
| 74 | private EncodableDiscreteResources() { |
| 75 | this.parent = null; |
Sho SHIMIZU | e96a9e3 | 2016-06-09 10:36:58 -0700 | [diff] [blame] | 76 | this.map = null; |
Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 77 | } |
| 78 | |
| 79 | @Override |
| 80 | public Optional<DiscreteResource> lookup(DiscreteResourceId id) { |
| 81 | DiscreteResource resource = Resources.discrete(id).resource(); |
| 82 | Class<?> cls = getClass(resource); |
Sho SHIMIZU | e96a9e3 | 2016-06-09 10:36:58 -0700 | [diff] [blame] | 83 | return Optional.ofNullable(map.get(cls)) |
Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 84 | .filter(x -> x.contains(resource)) |
| 85 | .map(x -> resource); |
| 86 | } |
| 87 | |
| 88 | @Override |
| 89 | public DiscreteResources difference(DiscreteResources other) { |
Sho SHIMIZU | ecb7898 | 2016-06-07 16:10:46 -0700 | [diff] [blame] | 90 | if (other instanceof EncodableDiscreteResources) { |
| 91 | return of(parent, Sets.difference(this.values(), other.values())); |
| 92 | } else if (other instanceof EmptyDiscreteResources) { |
| 93 | return this; |
| 94 | } |
| 95 | |
| 96 | return DiscreteResources.of(Sets.difference(values(), other.values())); |
Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 97 | } |
| 98 | |
| 99 | @Override |
| 100 | public boolean isEmpty() { |
Sho SHIMIZU | e96a9e3 | 2016-06-09 10:36:58 -0700 | [diff] [blame] | 101 | return map.values().stream() |
Sho SHIMIZU | 2795d63 | 2016-05-25 14:10:13 -0700 | [diff] [blame] | 102 | .allMatch(x -> x.isEmpty()); |
Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 103 | } |
| 104 | |
| 105 | @Override |
Sho SHIMIZU | 34847b7 | 2016-06-07 14:31:54 -0700 | [diff] [blame] | 106 | public boolean containsAny(Set<DiscreteResource> other) { |
Sho SHIMIZU | 326162f | 2016-06-08 18:32:51 -0700 | [diff] [blame^] | 107 | return other.stream() |
| 108 | .filter(x -> !map.containsKey(x)) |
| 109 | .anyMatch(x -> map.get(getClass(x)).contains(x)); |
Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 110 | } |
| 111 | |
| 112 | @Override |
| 113 | public DiscreteResources add(DiscreteResources other) { |
Sho SHIMIZU | 9e3031a | 2016-06-07 16:32:06 -0700 | [diff] [blame] | 114 | if (other instanceof EncodableDiscreteResources) { |
| 115 | return of(parent, Sets.union(this.values(), other.values())); |
| 116 | } else if (other instanceof EmptyDiscreteResources) { |
| 117 | return this; |
| 118 | } |
Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 119 | |
Sho SHIMIZU | 9e3031a | 2016-06-07 16:32:06 -0700 | [diff] [blame] | 120 | return DiscreteResources.of(Sets.union(this.values(), other.values())); |
Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 121 | } |
| 122 | |
| 123 | @Override |
Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 124 | public Set<DiscreteResource> values() { |
Sho SHIMIZU | e96a9e3 | 2016-06-09 10:36:58 -0700 | [diff] [blame] | 125 | return map.values().stream() |
Sho SHIMIZU | 758cf63 | 2016-05-25 15:25:59 -0700 | [diff] [blame] | 126 | .flatMap(x -> x.values(parent.id()).stream()) |
Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 127 | .collect(Collectors.toCollection(LinkedHashSet::new)); |
| 128 | } |
| 129 | |
Sho SHIMIZU | 9cc4a24 | 2016-05-26 12:55:35 -0700 | [diff] [blame] | 130 | @Override |
| 131 | public <T> Set<DiscreteResource> valuesOf(Class<T> cls) { |
Sho SHIMIZU | e96a9e3 | 2016-06-09 10:36:58 -0700 | [diff] [blame] | 132 | return Optional.ofNullable(map.get(cls)) |
Sho SHIMIZU | 9cc4a24 | 2016-05-26 12:55:35 -0700 | [diff] [blame] | 133 | .map(x -> x.values(parent.id())) |
| 134 | .orElse(ImmutableSet.of()); |
| 135 | } |
| 136 | |
Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 137 | DiscreteResource parent() { |
| 138 | return parent; |
| 139 | } |
| 140 | |
Sho SHIMIZU | 2795d63 | 2016-05-25 14:10:13 -0700 | [diff] [blame] | 141 | Map<Class<?>, EncodedDiscreteResources> rawValues() { |
Sho SHIMIZU | e96a9e3 | 2016-06-09 10:36:58 -0700 | [diff] [blame] | 142 | return map; |
Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 143 | } |
Sho SHIMIZU | 68e8bfa | 2016-06-08 12:01:31 -0700 | [diff] [blame] | 144 | |
| 145 | @Override |
| 146 | public int hashCode() { |
Sho SHIMIZU | e96a9e3 | 2016-06-09 10:36:58 -0700 | [diff] [blame] | 147 | return Objects.hash(parent, map); |
Sho SHIMIZU | 68e8bfa | 2016-06-08 12:01:31 -0700 | [diff] [blame] | 148 | } |
| 149 | |
| 150 | @Override |
| 151 | public boolean equals(Object obj) { |
| 152 | if (this == obj) { |
| 153 | return true; |
| 154 | } |
| 155 | if (obj == null || getClass() != obj.getClass()) { |
| 156 | return false; |
| 157 | } |
| 158 | final EncodableDiscreteResources other = (EncodableDiscreteResources) obj; |
| 159 | return Objects.equals(this.parent, other.parent) |
Sho SHIMIZU | e96a9e3 | 2016-06-09 10:36:58 -0700 | [diff] [blame] | 160 | && Objects.equals(this.map, other.map); |
Sho SHIMIZU | 68e8bfa | 2016-06-08 12:01:31 -0700 | [diff] [blame] | 161 | } |
| 162 | |
| 163 | @Override |
| 164 | public String toString() { |
| 165 | return MoreObjects.toStringHelper(this) |
| 166 | .add("values", values()) |
| 167 | .toString(); |
| 168 | } |
Sho SHIMIZU | e4f76ed | 2016-05-19 11:40:31 -0700 | [diff] [blame] | 169 | } |