Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 1 | /* |
Brian O'Connor | a09fe5b | 2017-08-03 21:12:30 -0700 | [diff] [blame] | 2 | * Copyright 2016-present Open Networking Foundation |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [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 | package org.onosproject.store.primitives.impl; |
| 17 | |
| 18 | import static com.google.common.base.Preconditions.checkNotNull; |
| 19 | |
| 20 | import java.util.Collection; |
Jordan Halterman | dae1160 | 2018-07-03 00:00:47 -0700 | [diff] [blame] | 21 | import java.util.Iterator; |
| 22 | import java.util.List; |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 23 | import java.util.Map; |
| 24 | import java.util.Map.Entry; |
Jordan Halterman | dae1160 | 2018-07-03 00:00:47 -0700 | [diff] [blame] | 25 | import java.util.NoSuchElementException; |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 26 | import java.util.Set; |
| 27 | import java.util.TreeMap; |
| 28 | import java.util.concurrent.CompletableFuture; |
Madan Jampani | 0463cf9 | 2016-05-04 14:46:08 -0700 | [diff] [blame] | 29 | import java.util.concurrent.Executor; |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 30 | import java.util.function.BiFunction; |
Madan Jampani | 1d3b617 | 2016-04-28 13:22:57 -0700 | [diff] [blame] | 31 | import java.util.function.Consumer; |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 32 | import java.util.function.Predicate; |
Madan Jampani | 74da78b | 2016-02-09 21:18:36 -0800 | [diff] [blame] | 33 | import java.util.stream.Collectors; |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 34 | |
Madan Jampani | 307a21e | 2016-09-01 15:49:47 -0700 | [diff] [blame] | 35 | import org.onlab.util.Match; |
Madan Jampani | 74da78b | 2016-02-09 21:18:36 -0800 | [diff] [blame] | 36 | import org.onlab.util.Tools; |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 37 | import org.onosproject.cluster.PartitionId; |
Madan Jampani | 74da78b | 2016-02-09 21:18:36 -0800 | [diff] [blame] | 38 | import org.onosproject.store.primitives.MapUpdate; |
| 39 | import org.onosproject.store.primitives.TransactionId; |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 40 | import org.onosproject.store.service.AsyncConsistentMap; |
Jordan Halterman | dae1160 | 2018-07-03 00:00:47 -0700 | [diff] [blame] | 41 | import org.onosproject.store.service.AsyncIterator; |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 42 | import org.onosproject.store.service.MapEventListener; |
Jordan Halterman | 948d659 | 2017-04-20 17:18:24 -0700 | [diff] [blame] | 43 | import org.onosproject.store.service.TransactionLog; |
| 44 | import org.onosproject.store.service.Version; |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 45 | import org.onosproject.store.service.Versioned; |
Madan Jampani | 0463cf9 | 2016-05-04 14:46:08 -0700 | [diff] [blame] | 46 | |
Madan Jampani | 307a21e | 2016-09-01 15:49:47 -0700 | [diff] [blame] | 47 | import com.google.common.collect.ImmutableList; |
| 48 | import com.google.common.collect.ImmutableSet; |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 49 | import com.google.common.collect.Maps; |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 50 | |
| 51 | /** |
| 52 | * {@link AsyncConsistentMap} that has its entries partitioned horizontally across |
| 53 | * several {@link AsyncConsistentMap maps}. |
| 54 | * |
| 55 | * @param <K> key type |
| 56 | * @param <V> value type |
| 57 | */ |
| 58 | public class PartitionedAsyncConsistentMap<K, V> implements AsyncConsistentMap<K, V> { |
| 59 | |
| 60 | private final String name; |
| 61 | private final TreeMap<PartitionId, AsyncConsistentMap<K, V>> partitions = Maps.newTreeMap(); |
| 62 | private final Hasher<K> keyHasher; |
| 63 | |
| 64 | public PartitionedAsyncConsistentMap(String name, |
| 65 | Map<PartitionId, AsyncConsistentMap<K, V>> partitions, |
| 66 | Hasher<K> keyHasher) { |
| 67 | this.name = name; |
| 68 | this.partitions.putAll(checkNotNull(partitions)); |
| 69 | this.keyHasher = checkNotNull(keyHasher); |
| 70 | } |
| 71 | |
| 72 | @Override |
| 73 | public String name() { |
| 74 | return name; |
| 75 | } |
| 76 | |
| 77 | @Override |
| 78 | public CompletableFuture<Integer> size() { |
Madan Jampani | 307a21e | 2016-09-01 15:49:47 -0700 | [diff] [blame] | 79 | return Tools.allOf(getMaps().stream().map(m -> m.size()).collect(Collectors.toList()), |
| 80 | Math::addExact, |
| 81 | 0); |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 82 | } |
| 83 | |
| 84 | @Override |
| 85 | public CompletableFuture<Boolean> isEmpty() { |
| 86 | return size().thenApply(size -> size == 0); |
| 87 | } |
| 88 | |
| 89 | @Override |
| 90 | public CompletableFuture<Boolean> containsKey(K key) { |
| 91 | return getMap(key).containsKey(key); |
| 92 | } |
| 93 | |
| 94 | @Override |
| 95 | public CompletableFuture<Boolean> containsValue(V value) { |
Madan Jampani | 307a21e | 2016-09-01 15:49:47 -0700 | [diff] [blame] | 96 | return Tools.firstOf(getMaps().stream().map(m -> m.containsValue(value)).collect(Collectors.toList()), |
| 97 | Match.ifValue(true), |
| 98 | false); |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 99 | } |
Jordan Halterman | f627244 | 2017-04-20 02:18:08 -0700 | [diff] [blame] | 100 | |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 101 | @Override |
| 102 | public CompletableFuture<Versioned<V>> get(K key) { |
| 103 | return getMap(key).get(key); |
| 104 | } |
| 105 | |
| 106 | @Override |
Jordan Halterman | f627244 | 2017-04-20 02:18:08 -0700 | [diff] [blame] | 107 | public CompletableFuture<Versioned<V>> getOrDefault(K key, V defaultValue) { |
| 108 | return getMap(key).getOrDefault(key, defaultValue); |
| 109 | } |
| 110 | |
| 111 | @Override |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 112 | public CompletableFuture<Versioned<V>> computeIf(K key, |
| 113 | Predicate<? super V> condition, |
| 114 | BiFunction<? super K, ? super V, ? extends V> remappingFunction) { |
| 115 | return getMap(key).computeIf(key, condition, remappingFunction); |
| 116 | } |
| 117 | |
| 118 | @Override |
| 119 | public CompletableFuture<Versioned<V>> put(K key, V value) { |
| 120 | return getMap(key).put(key, value); |
| 121 | } |
| 122 | |
| 123 | @Override |
| 124 | public CompletableFuture<Versioned<V>> putAndGet(K key, V value) { |
| 125 | return getMap(key).putAndGet(key, value); |
| 126 | } |
| 127 | |
| 128 | @Override |
| 129 | public CompletableFuture<Versioned<V>> remove(K key) { |
| 130 | return getMap(key).remove(key); |
| 131 | } |
| 132 | |
| 133 | @Override |
| 134 | public CompletableFuture<Void> clear() { |
| 135 | return CompletableFuture.allOf(getMaps().stream() |
| 136 | .map(map -> map.clear()) |
| 137 | .toArray(CompletableFuture[]::new)); |
| 138 | } |
| 139 | |
| 140 | @Override |
| 141 | public CompletableFuture<Set<K>> keySet() { |
Madan Jampani | 307a21e | 2016-09-01 15:49:47 -0700 | [diff] [blame] | 142 | return Tools.allOf(getMaps().stream().map(m -> m.keySet()).collect(Collectors.toList()), |
| 143 | (s1, s2) -> ImmutableSet.<K>builder().addAll(s1).addAll(s2).build(), |
| 144 | ImmutableSet.of()); |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 145 | } |
| 146 | |
| 147 | @Override |
| 148 | public CompletableFuture<Collection<Versioned<V>>> values() { |
Madan Jampani | 307a21e | 2016-09-01 15:49:47 -0700 | [diff] [blame] | 149 | return Tools.allOf(getMaps().stream().map(m -> m.values()).collect(Collectors.toList()), |
| 150 | (c1, c2) -> ImmutableList.<Versioned<V>>builder().addAll(c1).addAll(c2).build(), |
| 151 | ImmutableList.of()); |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 152 | } |
| 153 | |
| 154 | @Override |
| 155 | public CompletableFuture<Set<Entry<K, Versioned<V>>>> entrySet() { |
Madan Jampani | 307a21e | 2016-09-01 15:49:47 -0700 | [diff] [blame] | 156 | return Tools.allOf(getMaps().stream().map(m -> m.entrySet()).collect(Collectors.toList()), |
| 157 | (s1, s2) -> ImmutableSet.<Entry<K, Versioned<V>>>builder().addAll(s1).addAll(s2).build(), |
| 158 | ImmutableSet.of()); |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 159 | } |
| 160 | |
| 161 | @Override |
| 162 | public CompletableFuture<Versioned<V>> putIfAbsent(K key, V value) { |
| 163 | return getMap(key).putIfAbsent(key, value); |
| 164 | } |
| 165 | |
| 166 | @Override |
| 167 | public CompletableFuture<Boolean> remove(K key, V value) { |
| 168 | return getMap(key).remove(key, value); |
| 169 | } |
| 170 | |
| 171 | @Override |
| 172 | public CompletableFuture<Boolean> remove(K key, long version) { |
| 173 | return getMap(key).remove(key, version); |
| 174 | } |
| 175 | |
| 176 | @Override |
| 177 | public CompletableFuture<Versioned<V>> replace(K key, V value) { |
| 178 | return getMap(key).replace(key, value); |
| 179 | } |
| 180 | |
| 181 | @Override |
| 182 | public CompletableFuture<Boolean> replace(K key, V oldValue, V newValue) { |
| 183 | return getMap(key).replace(key, oldValue, newValue); |
| 184 | } |
| 185 | |
| 186 | @Override |
| 187 | public CompletableFuture<Boolean> replace(K key, long oldVersion, V newValue) { |
| 188 | return getMap(key).replace(key, oldVersion, newValue); |
| 189 | } |
| 190 | |
| 191 | @Override |
Jordan Halterman | dae1160 | 2018-07-03 00:00:47 -0700 | [diff] [blame] | 192 | public CompletableFuture<AsyncIterator<Entry<K, Versioned<V>>>> iterator() { |
| 193 | return Tools.allOf(getMaps().stream().map(m -> m.iterator()).collect(Collectors.toList())) |
| 194 | .thenApply(PartitionedMultimapIterator::new); |
| 195 | } |
| 196 | |
| 197 | @Override |
Madan Jampani | 0463cf9 | 2016-05-04 14:46:08 -0700 | [diff] [blame] | 198 | public CompletableFuture<Void> addListener(MapEventListener<K, V> listener, Executor executor) { |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 199 | return CompletableFuture.allOf(getMaps().stream() |
Madan Jampani | 0463cf9 | 2016-05-04 14:46:08 -0700 | [diff] [blame] | 200 | .map(map -> map.addListener(listener, executor)) |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 201 | .toArray(CompletableFuture[]::new)); |
| 202 | } |
| 203 | |
| 204 | @Override |
| 205 | public CompletableFuture<Void> removeListener(MapEventListener<K, V> listener) { |
| 206 | return CompletableFuture.allOf(getMaps().stream() |
| 207 | .map(map -> map.removeListener(listener)) |
| 208 | .toArray(CompletableFuture[]::new)); |
| 209 | } |
| 210 | |
Madan Jampani | 74da78b | 2016-02-09 21:18:36 -0800 | [diff] [blame] | 211 | @Override |
Jordan Halterman | 948d659 | 2017-04-20 17:18:24 -0700 | [diff] [blame] | 212 | public CompletableFuture<Version> begin(TransactionId transactionId) { |
| 213 | throw new UnsupportedOperationException(); |
| 214 | } |
Madan Jampani | 74da78b | 2016-02-09 21:18:36 -0800 | [diff] [blame] | 215 | |
Jordan Halterman | 948d659 | 2017-04-20 17:18:24 -0700 | [diff] [blame] | 216 | @Override |
| 217 | public CompletableFuture<Boolean> prepare(TransactionLog<MapUpdate<K, V>> transactionLog) { |
| 218 | throw new UnsupportedOperationException(); |
| 219 | } |
Madan Jampani | 74da78b | 2016-02-09 21:18:36 -0800 | [diff] [blame] | 220 | |
Jordan Halterman | 948d659 | 2017-04-20 17:18:24 -0700 | [diff] [blame] | 221 | @Override |
| 222 | public CompletableFuture<Boolean> prepareAndCommit(TransactionLog<MapUpdate<K, V>> transactionLog) { |
| 223 | throw new UnsupportedOperationException(); |
Madan Jampani | 74da78b | 2016-02-09 21:18:36 -0800 | [diff] [blame] | 224 | } |
| 225 | |
| 226 | @Override |
| 227 | public CompletableFuture<Void> commit(TransactionId transactionId) { |
Jordan Halterman | 948d659 | 2017-04-20 17:18:24 -0700 | [diff] [blame] | 228 | throw new UnsupportedOperationException(); |
Madan Jampani | 74da78b | 2016-02-09 21:18:36 -0800 | [diff] [blame] | 229 | } |
| 230 | |
| 231 | @Override |
| 232 | public CompletableFuture<Void> rollback(TransactionId transactionId) { |
Jordan Halterman | 948d659 | 2017-04-20 17:18:24 -0700 | [diff] [blame] | 233 | throw new UnsupportedOperationException(); |
Madan Jampani | 542d9e2 | 2016-04-05 15:39:55 -0700 | [diff] [blame] | 234 | } |
| 235 | |
Madan Jampani | 1d3b617 | 2016-04-28 13:22:57 -0700 | [diff] [blame] | 236 | @Override |
| 237 | public void addStatusChangeListener(Consumer<Status> listener) { |
| 238 | partitions.values().forEach(map -> map.addStatusChangeListener(listener)); |
| 239 | } |
| 240 | |
| 241 | @Override |
| 242 | public void removeStatusChangeListener(Consumer<Status> listener) { |
| 243 | partitions.values().forEach(map -> map.removeStatusChangeListener(listener)); |
| 244 | } |
| 245 | |
| 246 | @Override |
| 247 | public Collection<Consumer<Status>> statusChangeListeners() { |
| 248 | throw new UnsupportedOperationException(); |
| 249 | } |
| 250 | |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 251 | /** |
| 252 | * Returns the map (partition) to which the specified key maps. |
| 253 | * @param key key |
| 254 | * @return AsyncConsistentMap to which key maps |
| 255 | */ |
| 256 | private AsyncConsistentMap<K, V> getMap(K key) { |
| 257 | return partitions.get(keyHasher.hash(key)); |
| 258 | } |
| 259 | |
| 260 | /** |
| 261 | * Returns all the constituent maps. |
| 262 | * @return collection of maps. |
| 263 | */ |
| 264 | private Collection<AsyncConsistentMap<K, V>> getMaps() { |
| 265 | return partitions.values(); |
| 266 | } |
Jordan Halterman | dae1160 | 2018-07-03 00:00:47 -0700 | [diff] [blame] | 267 | |
| 268 | private class PartitionedMultimapIterator<K, V> implements AsyncIterator<Map.Entry<K, Versioned<V>>> { |
| 269 | private final Iterator<AsyncIterator<Entry<K, Versioned<V>>>> iterators; |
| 270 | private volatile AsyncIterator<Entry<K, Versioned<V>>> iterator; |
| 271 | |
| 272 | public PartitionedMultimapIterator(List<AsyncIterator<Entry<K, Versioned<V>>>> iterators) { |
| 273 | this.iterators = iterators.iterator(); |
| 274 | } |
| 275 | |
| 276 | @Override |
| 277 | public CompletableFuture<Boolean> hasNext() { |
| 278 | if (iterator == null && iterators.hasNext()) { |
| 279 | iterator = iterators.next(); |
| 280 | } |
| 281 | if (iterator == null) { |
| 282 | return CompletableFuture.completedFuture(false); |
| 283 | } |
| 284 | return iterator.hasNext() |
| 285 | .thenCompose(hasNext -> { |
| 286 | if (!hasNext) { |
| 287 | iterator = null; |
| 288 | return hasNext(); |
| 289 | } |
| 290 | return CompletableFuture.completedFuture(true); |
| 291 | }); |
| 292 | } |
| 293 | |
| 294 | @Override |
| 295 | public CompletableFuture<Entry<K, Versioned<V>>> next() { |
| 296 | if (iterator == null && iterators.hasNext()) { |
| 297 | iterator = iterators.next(); |
| 298 | } |
| 299 | if (iterator == null) { |
| 300 | return Tools.exceptionalFuture(new NoSuchElementException()); |
| 301 | } |
| 302 | return iterator.next(); |
| 303 | } |
| 304 | } |
Madan Jampani | 1007367 | 2016-01-21 19:13:59 -0800 | [diff] [blame] | 305 | } |