Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -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 | 551d0d2 | 2016-02-01 12:51:48 -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 | |
| 17 | package org.onosproject.store.primitives.impl; |
| 18 | |
Jonathan Hart | 46bf89b | 2017-02-27 15:56:42 -0800 | [diff] [blame] | 19 | import com.google.common.collect.Maps; |
| 20 | import org.onlab.util.Tools; |
| 21 | import org.onosproject.store.primitives.MapUpdate; |
| 22 | import org.onosproject.store.primitives.TransactionId; |
| 23 | import org.onosproject.store.service.AsyncConsistentMap; |
| 24 | import org.onosproject.store.service.MapEvent; |
| 25 | import org.onosproject.store.service.MapEventListener; |
| 26 | import org.onosproject.store.service.TransactionLog; |
| 27 | import org.onosproject.store.service.Version; |
| 28 | import org.onosproject.store.service.Versioned; |
| 29 | |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 30 | import java.util.Collection; |
| 31 | import java.util.Map; |
| 32 | import java.util.Map.Entry; |
| 33 | import java.util.Set; |
| 34 | import java.util.concurrent.CompletableFuture; |
Madan Jampani | 0463cf9 | 2016-05-04 14:46:08 -0700 | [diff] [blame] | 35 | import java.util.concurrent.Executor; |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 36 | import java.util.function.BiFunction; |
Madan Jampani | 1d3b617 | 2016-04-28 13:22:57 -0700 | [diff] [blame] | 37 | import java.util.function.Consumer; |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 38 | import java.util.function.Function; |
| 39 | import java.util.function.Predicate; |
| 40 | import java.util.stream.Collectors; |
| 41 | |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 42 | /** |
| 43 | * An {@code AsyncConsistentMap} that maps its operations to operations on a |
| 44 | * differently typed {@code AsyncConsistentMap} by transcoding operation inputs and outputs. |
| 45 | * |
| 46 | * @param <K2> key type of other map |
| 47 | * @param <V2> value type of other map |
| 48 | * @param <K1> key type of this map |
| 49 | * @param <V1> value type of this map |
| 50 | */ |
| 51 | public class TranscodingAsyncConsistentMap<K1, V1, K2, V2> implements AsyncConsistentMap<K1, V1> { |
| 52 | |
| 53 | private final AsyncConsistentMap<K2, V2> backingMap; |
| 54 | private final Function<K1, K2> keyEncoder; |
| 55 | private final Function<K2, K1> keyDecoder; |
| 56 | private final Function<V2, V1> valueDecoder; |
| 57 | private final Function<V1, V2> valueEncoder; |
| 58 | private final Function<Versioned<V2>, Versioned<V1>> versionedValueTransform; |
| 59 | private final Map<MapEventListener<K1, V1>, InternalBackingMapEventListener> listeners = |
| 60 | Maps.newIdentityHashMap(); |
| 61 | |
| 62 | public TranscodingAsyncConsistentMap(AsyncConsistentMap<K2, V2> backingMap, |
| 63 | Function<K1, K2> keyEncoder, |
| 64 | Function<K2, K1> keyDecoder, |
| 65 | Function<V1, V2> valueEncoder, |
| 66 | Function<V2, V1> valueDecoder) { |
| 67 | this.backingMap = backingMap; |
| 68 | this.keyEncoder = k -> k == null ? null : keyEncoder.apply(k); |
Madan Jampani | 1e8e89c | 2016-02-02 08:53:56 -0800 | [diff] [blame] | 69 | this.keyDecoder = k -> k == null ? null : keyDecoder.apply(k); |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 70 | this.valueEncoder = v -> v == null ? null : valueEncoder.apply(v); |
Madan Jampani | 1e8e89c | 2016-02-02 08:53:56 -0800 | [diff] [blame] | 71 | this.valueDecoder = v -> v == null ? null : valueDecoder.apply(v); |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 72 | this.versionedValueTransform = v -> v == null ? null : v.map(valueDecoder); |
| 73 | } |
| 74 | |
| 75 | @Override |
| 76 | public String name() { |
| 77 | return backingMap.name(); |
| 78 | } |
| 79 | |
| 80 | @Override |
| 81 | public CompletableFuture<Integer> size() { |
| 82 | return backingMap.size(); |
| 83 | } |
| 84 | |
| 85 | @Override |
| 86 | public CompletableFuture<Boolean> containsKey(K1 key) { |
Madan Jampani | e9c9a71 | 2016-04-18 10:58:04 -0700 | [diff] [blame] | 87 | try { |
| 88 | return backingMap.containsKey(keyEncoder.apply(key)); |
| 89 | } catch (Exception e) { |
| 90 | return Tools.exceptionalFuture(e); |
| 91 | } |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 92 | } |
| 93 | |
| 94 | @Override |
| 95 | public CompletableFuture<Boolean> containsValue(V1 value) { |
Madan Jampani | e9c9a71 | 2016-04-18 10:58:04 -0700 | [diff] [blame] | 96 | try { |
| 97 | return backingMap.containsValue(valueEncoder.apply(value)); |
| 98 | } catch (Exception e) { |
| 99 | return Tools.exceptionalFuture(e); |
| 100 | } |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 101 | } |
| 102 | |
| 103 | @Override |
| 104 | public CompletableFuture<Versioned<V1>> get(K1 key) { |
Madan Jampani | e9c9a71 | 2016-04-18 10:58:04 -0700 | [diff] [blame] | 105 | try { |
| 106 | return backingMap.get(keyEncoder.apply(key)).thenApply(versionedValueTransform); |
| 107 | } catch (Exception e) { |
| 108 | return Tools.exceptionalFuture(e); |
| 109 | } |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 110 | } |
| 111 | |
| 112 | @Override |
Jordan Halterman | f627244 | 2017-04-20 02:18:08 -0700 | [diff] [blame] | 113 | public CompletableFuture<Versioned<V1>> getOrDefault(K1 key, V1 defaultValue) { |
| 114 | try { |
| 115 | return backingMap.getOrDefault(keyEncoder.apply(key), valueEncoder.apply(defaultValue)) |
| 116 | .thenApply(versionedValueTransform); |
| 117 | } catch (Exception e) { |
| 118 | return Tools.exceptionalFuture(e); |
| 119 | } |
| 120 | } |
| 121 | |
| 122 | @Override |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 123 | public CompletableFuture<Versioned<V1>> computeIf(K1 key, |
| 124 | Predicate<? super V1> condition, |
| 125 | BiFunction<? super K1, ? super V1, ? extends V1> remappingFunction) { |
Madan Jampani | e9c9a71 | 2016-04-18 10:58:04 -0700 | [diff] [blame] | 126 | try { |
| 127 | return backingMap.computeIf(keyEncoder.apply(key), |
| 128 | v -> condition.test(valueDecoder.apply(v)), |
| 129 | (k, v) -> valueEncoder.apply(remappingFunction.apply(keyDecoder.apply(k), |
| 130 | valueDecoder.apply(v)))) |
| 131 | .thenApply(versionedValueTransform); |
| 132 | } catch (Exception e) { |
| 133 | return Tools.exceptionalFuture(e); |
| 134 | } |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 135 | } |
| 136 | |
| 137 | @Override |
| 138 | public CompletableFuture<Versioned<V1>> put(K1 key, V1 value) { |
Madan Jampani | e9c9a71 | 2016-04-18 10:58:04 -0700 | [diff] [blame] | 139 | try { |
| 140 | return backingMap.put(keyEncoder.apply(key), valueEncoder.apply(value)) |
| 141 | .thenApply(versionedValueTransform); |
| 142 | } catch (Exception e) { |
| 143 | return Tools.exceptionalFuture(e); |
| 144 | } |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 145 | } |
| 146 | |
| 147 | @Override |
| 148 | public CompletableFuture<Versioned<V1>> putAndGet(K1 key, V1 value) { |
Madan Jampani | e9c9a71 | 2016-04-18 10:58:04 -0700 | [diff] [blame] | 149 | try { |
| 150 | return backingMap.putAndGet(keyEncoder.apply(key), valueEncoder.apply(value)) |
| 151 | .thenApply(versionedValueTransform); |
| 152 | } catch (Exception e) { |
| 153 | return Tools.exceptionalFuture(e); |
| 154 | } |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 155 | } |
| 156 | |
| 157 | @Override |
| 158 | public CompletableFuture<Versioned<V1>> remove(K1 key) { |
Madan Jampani | e9c9a71 | 2016-04-18 10:58:04 -0700 | [diff] [blame] | 159 | try { |
| 160 | return backingMap.remove(keyEncoder.apply(key)).thenApply(versionedValueTransform); |
| 161 | } catch (Exception e) { |
| 162 | return Tools.exceptionalFuture(e); |
| 163 | } |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 164 | } |
| 165 | |
| 166 | @Override |
| 167 | public CompletableFuture<Void> clear() { |
| 168 | return backingMap.clear(); |
| 169 | } |
| 170 | |
| 171 | @Override |
| 172 | public CompletableFuture<Set<K1>> keySet() { |
| 173 | return backingMap.keySet() |
| 174 | .thenApply(s -> s.stream().map(keyDecoder).collect(Collectors.toSet())); |
| 175 | } |
| 176 | |
| 177 | @Override |
| 178 | public CompletableFuture<Collection<Versioned<V1>>> values() { |
| 179 | return backingMap.values() |
| 180 | .thenApply(c -> c.stream().map(versionedValueTransform).collect(Collectors.toList())); |
| 181 | } |
| 182 | |
| 183 | @Override |
| 184 | public CompletableFuture<Set<Entry<K1, Versioned<V1>>>> entrySet() { |
| 185 | return backingMap.entrySet() |
| 186 | .thenApply(s -> s.stream() |
| 187 | .map(e -> Maps.immutableEntry(keyDecoder.apply(e.getKey()), |
| 188 | versionedValueTransform.apply(e.getValue()))) |
| 189 | .collect(Collectors.toSet())); |
| 190 | } |
| 191 | |
| 192 | @Override |
| 193 | public CompletableFuture<Versioned<V1>> putIfAbsent(K1 key, V1 value) { |
Madan Jampani | e9c9a71 | 2016-04-18 10:58:04 -0700 | [diff] [blame] | 194 | try { |
| 195 | return backingMap.putIfAbsent(keyEncoder.apply(key), valueEncoder.apply(value)) |
| 196 | .thenApply(versionedValueTransform); |
| 197 | } catch (Exception e) { |
| 198 | return Tools.exceptionalFuture(e); |
| 199 | } |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 200 | } |
| 201 | |
| 202 | @Override |
| 203 | public CompletableFuture<Boolean> remove(K1 key, V1 value) { |
Madan Jampani | e9c9a71 | 2016-04-18 10:58:04 -0700 | [diff] [blame] | 204 | try { |
| 205 | return backingMap.remove(keyEncoder.apply(key), valueEncoder.apply(value)); |
| 206 | } catch (Exception e) { |
| 207 | return Tools.exceptionalFuture(e); |
| 208 | } |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 209 | } |
| 210 | |
| 211 | @Override |
| 212 | public CompletableFuture<Boolean> remove(K1 key, long version) { |
Madan Jampani | e9c9a71 | 2016-04-18 10:58:04 -0700 | [diff] [blame] | 213 | try { |
| 214 | return backingMap.remove(keyEncoder.apply(key), version); |
| 215 | } catch (Exception e) { |
| 216 | return Tools.exceptionalFuture(e); |
| 217 | } |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 218 | } |
| 219 | |
| 220 | @Override |
| 221 | public CompletableFuture<Versioned<V1>> replace(K1 key, V1 value) { |
Madan Jampani | e9c9a71 | 2016-04-18 10:58:04 -0700 | [diff] [blame] | 222 | try { |
| 223 | return backingMap.replace(keyEncoder.apply(key), valueEncoder.apply(value)) |
| 224 | .thenApply(versionedValueTransform); |
| 225 | } catch (Exception e) { |
| 226 | return Tools.exceptionalFuture(e); |
| 227 | } |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 228 | } |
| 229 | |
| 230 | @Override |
| 231 | public CompletableFuture<Boolean> replace(K1 key, V1 oldValue, V1 newValue) { |
Madan Jampani | e9c9a71 | 2016-04-18 10:58:04 -0700 | [diff] [blame] | 232 | try { |
| 233 | return backingMap.replace(keyEncoder.apply(key), |
| 234 | valueEncoder.apply(oldValue), |
| 235 | valueEncoder.apply(newValue)); |
| 236 | } catch (Exception e) { |
| 237 | return Tools.exceptionalFuture(e); |
| 238 | } |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 239 | } |
| 240 | |
| 241 | @Override |
| 242 | public CompletableFuture<Boolean> replace(K1 key, long oldVersion, V1 newValue) { |
Madan Jampani | e9c9a71 | 2016-04-18 10:58:04 -0700 | [diff] [blame] | 243 | try { |
| 244 | return backingMap.replace(keyEncoder.apply(key), oldVersion, valueEncoder.apply(newValue)); |
| 245 | } catch (Exception e) { |
| 246 | return Tools.exceptionalFuture(e); |
| 247 | } |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 248 | } |
| 249 | |
| 250 | @Override |
Madan Jampani | 0463cf9 | 2016-05-04 14:46:08 -0700 | [diff] [blame] | 251 | public CompletableFuture<Void> addListener(MapEventListener<K1, V1> listener, Executor executor) { |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 252 | synchronized (listeners) { |
| 253 | InternalBackingMapEventListener backingMapListener = |
| 254 | listeners.computeIfAbsent(listener, k -> new InternalBackingMapEventListener(listener)); |
Madan Jampani | 0463cf9 | 2016-05-04 14:46:08 -0700 | [diff] [blame] | 255 | return backingMap.addListener(backingMapListener, executor); |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 256 | } |
| 257 | } |
| 258 | |
| 259 | @Override |
| 260 | public CompletableFuture<Void> removeListener(MapEventListener<K1, V1> listener) { |
Jonathan Hart | 46bf89b | 2017-02-27 15:56:42 -0800 | [diff] [blame] | 261 | synchronized (listeners) { |
| 262 | InternalBackingMapEventListener backingMapListener = listeners.remove(listener); |
| 263 | if (backingMapListener != null) { |
| 264 | return backingMap.removeListener(backingMapListener); |
| 265 | } else { |
| 266 | return CompletableFuture.completedFuture(null); |
| 267 | } |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 268 | } |
| 269 | } |
| 270 | |
Madan Jampani | 74da78b | 2016-02-09 21:18:36 -0800 | [diff] [blame] | 271 | @Override |
Jordan Halterman | 948d659 | 2017-04-20 17:18:24 -0700 | [diff] [blame] | 272 | public CompletableFuture<Version> begin(TransactionId transactionId) { |
Madan Jampani | e9c9a71 | 2016-04-18 10:58:04 -0700 | [diff] [blame] | 273 | try { |
Jordan Halterman | 948d659 | 2017-04-20 17:18:24 -0700 | [diff] [blame] | 274 | return backingMap.begin(transactionId); |
| 275 | } catch (Exception e) { |
| 276 | return Tools.exceptionalFuture(e); |
| 277 | } |
| 278 | } |
| 279 | |
| 280 | @Override |
| 281 | public CompletableFuture<Boolean> prepare(TransactionLog<MapUpdate<K1, V1>> transactionLog) { |
| 282 | try { |
| 283 | return backingMap.prepare(transactionLog.map(record -> record.map(keyEncoder, valueEncoder))); |
| 284 | } catch (Exception e) { |
| 285 | return Tools.exceptionalFuture(e); |
| 286 | } |
| 287 | } |
| 288 | |
| 289 | @Override |
| 290 | public CompletableFuture<Boolean> prepareAndCommit(TransactionLog<MapUpdate<K1, V1>> transactionLog) { |
| 291 | try { |
| 292 | return backingMap.prepareAndCommit(transactionLog.map(record -> record.map(keyEncoder, valueEncoder))); |
Madan Jampani | e9c9a71 | 2016-04-18 10:58:04 -0700 | [diff] [blame] | 293 | } catch (Exception e) { |
| 294 | return Tools.exceptionalFuture(e); |
| 295 | } |
Madan Jampani | 74da78b | 2016-02-09 21:18:36 -0800 | [diff] [blame] | 296 | } |
| 297 | |
| 298 | @Override |
| 299 | public CompletableFuture<Void> commit(TransactionId transactionId) { |
Jordan Halterman | 948d659 | 2017-04-20 17:18:24 -0700 | [diff] [blame] | 300 | try { |
| 301 | return backingMap.commit(transactionId); |
| 302 | } catch (Exception e) { |
| 303 | return Tools.exceptionalFuture(e); |
| 304 | } |
Madan Jampani | 74da78b | 2016-02-09 21:18:36 -0800 | [diff] [blame] | 305 | } |
| 306 | |
| 307 | @Override |
| 308 | public CompletableFuture<Void> rollback(TransactionId transactionId) { |
Madan Jampani | e9c9a71 | 2016-04-18 10:58:04 -0700 | [diff] [blame] | 309 | try { |
Jordan Halterman | 948d659 | 2017-04-20 17:18:24 -0700 | [diff] [blame] | 310 | return backingMap.rollback(transactionId); |
Madan Jampani | e9c9a71 | 2016-04-18 10:58:04 -0700 | [diff] [blame] | 311 | } catch (Exception e) { |
| 312 | return Tools.exceptionalFuture(e); |
| 313 | } |
Madan Jampani | 542d9e2 | 2016-04-05 15:39:55 -0700 | [diff] [blame] | 314 | } |
| 315 | |
Madan Jampani | 1d3b617 | 2016-04-28 13:22:57 -0700 | [diff] [blame] | 316 | @Override |
| 317 | public void addStatusChangeListener(Consumer<Status> listener) { |
| 318 | backingMap.addStatusChangeListener(listener); |
| 319 | } |
| 320 | |
| 321 | @Override |
| 322 | public void removeStatusChangeListener(Consumer<Status> listener) { |
| 323 | backingMap.removeStatusChangeListener(listener); |
| 324 | } |
| 325 | |
| 326 | @Override |
| 327 | public Collection<Consumer<Status>> statusChangeListeners() { |
| 328 | return backingMap.statusChangeListeners(); |
| 329 | } |
| 330 | |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 331 | private class InternalBackingMapEventListener implements MapEventListener<K2, V2> { |
| 332 | |
| 333 | private final MapEventListener<K1, V1> listener; |
| 334 | |
| 335 | InternalBackingMapEventListener(MapEventListener<K1, V1> listener) { |
| 336 | this.listener = listener; |
| 337 | } |
| 338 | |
| 339 | @Override |
| 340 | public void event(MapEvent<K2, V2> event) { |
Jordan Halterman | 71635ae | 2017-07-28 10:35:43 -0700 | [diff] [blame] | 341 | listener.event(new MapEvent<K1, V1>( |
| 342 | event.type(), |
| 343 | event.name(), |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 344 | keyDecoder.apply(event.key()), |
Madan Jampani | a9673fd | 2016-02-02 13:01:29 -0800 | [diff] [blame] | 345 | event.newValue() != null ? event.newValue().map(valueDecoder) : null, |
| 346 | event.oldValue() != null ? event.oldValue().map(valueDecoder) : null)); |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 347 | } |
| 348 | } |
| 349 | } |