Madan Jampani | 2546111 | 2015-02-17 14:17:29 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 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 | |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 17 | package org.onosproject.store.consistent.impl; |
| 18 | |
Aaron Kruglikov | 82fd632 | 2015-10-06 12:02:46 -0700 | [diff] [blame] | 19 | import com.google.common.collect.Sets; |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 20 | import net.kuujo.copycat.resource.internal.AbstractResource; |
Madan Jampani | ed1b7fc | 2015-04-27 23:30:07 -0700 | [diff] [blame] | 21 | import net.kuujo.copycat.resource.internal.ResourceManager; |
Aaron Kruglikov | 82fd632 | 2015-10-06 12:02:46 -0700 | [diff] [blame] | 22 | import net.kuujo.copycat.state.StateMachine; |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 23 | import net.kuujo.copycat.state.internal.DefaultStateMachine; |
| 24 | import net.kuujo.copycat.util.concurrent.Futures; |
Madan Jampani | 648451f | 2015-07-21 22:09:05 -0700 | [diff] [blame] | 25 | import net.kuujo.copycat.util.function.TriConsumer; |
Aaron Kruglikov | 82fd632 | 2015-10-06 12:02:46 -0700 | [diff] [blame] | 26 | import org.onosproject.store.service.Transaction; |
| 27 | import org.onosproject.store.service.Versioned; |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 28 | |
| 29 | import java.util.Collection; |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 30 | import java.util.Map; |
| 31 | import java.util.Set; |
| 32 | import java.util.concurrent.CompletableFuture; |
Madan Jampani | 648451f | 2015-07-21 22:09:05 -0700 | [diff] [blame] | 33 | import java.util.function.Consumer; |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 34 | import java.util.function.Supplier; |
| 35 | |
| 36 | /** |
| 37 | * Default database. |
| 38 | */ |
| 39 | public class DefaultDatabase extends AbstractResource<Database> implements Database { |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 40 | private final StateMachine<DatabaseState<String, byte[]>> stateMachine; |
| 41 | private DatabaseProxy<String, byte[]> proxy; |
Madan Jampani | 648451f | 2015-07-21 22:09:05 -0700 | [diff] [blame] | 42 | private final Set<Consumer<StateMachineUpdate>> consumers = Sets.newCopyOnWriteArraySet(); |
| 43 | private final TriConsumer<String, Object, Object> watcher = new InternalStateMachineWatcher(); |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 44 | |
andrea | fd912ac | 2015-10-02 14:58:35 -0700 | [diff] [blame] | 45 | @SuppressWarnings({"unchecked", "rawtypes"}) |
Madan Jampani | ed1b7fc | 2015-04-27 23:30:07 -0700 | [diff] [blame] | 46 | public DefaultDatabase(ResourceManager context) { |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 47 | super(context); |
Madan Jampani | 40537ca | 2015-07-14 19:50:33 -0700 | [diff] [blame] | 48 | this.stateMachine = new DefaultStateMachine(context, |
Aaron Kruglikov | 82fd632 | 2015-10-06 12:02:46 -0700 | [diff] [blame] | 49 | DatabaseState.class, |
| 50 | DefaultDatabaseState.class, |
| 51 | DefaultDatabase.class.getClassLoader()); |
Madan Jampani | 648451f | 2015-07-21 22:09:05 -0700 | [diff] [blame] | 52 | this.stateMachine.addStartupTask(() -> { |
| 53 | stateMachine.registerWatcher(watcher); |
| 54 | return CompletableFuture.completedFuture(null); |
| 55 | }); |
| 56 | this.stateMachine.addShutdownTask(() -> { |
| 57 | stateMachine.unregisterWatcher(watcher); |
| 58 | return CompletableFuture.completedFuture(null); |
| 59 | }); |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 60 | } |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 61 | |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 62 | /** |
| 63 | * If the database is closed, returning a failed CompletableFuture. Otherwise, calls the given supplier to |
| 64 | * return the completed future result. |
| 65 | * |
| 66 | * @param supplier The supplier to call if the database is open. |
andrea | fd912ac | 2015-10-02 14:58:35 -0700 | [diff] [blame] | 67 | * @param <T> The future result type. |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 68 | * @return A completable future that if this database is closed is immediately failed. |
| 69 | */ |
| 70 | protected <T> CompletableFuture<T> checkOpen(Supplier<CompletableFuture<T>> supplier) { |
| 71 | if (proxy == null) { |
| 72 | return Futures.exceptionalFuture(new IllegalStateException("Database closed")); |
| 73 | } |
| 74 | return supplier.get(); |
| 75 | } |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 76 | |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 77 | @Override |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 78 | public CompletableFuture<Set<String>> maps() { |
| 79 | return checkOpen(() -> proxy.maps()); |
Madan Jampani | a89f8f9 | 2015-04-01 14:39:54 -0700 | [diff] [blame] | 80 | } |
| 81 | |
| 82 | @Override |
Madan Jampani | b5d72d5 | 2015-04-03 16:53:50 -0700 | [diff] [blame] | 83 | public CompletableFuture<Map<String, Long>> counters() { |
| 84 | return checkOpen(() -> proxy.counters()); |
| 85 | } |
| 86 | |
| 87 | @Override |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 88 | public CompletableFuture<Integer> mapSize(String mapName) { |
| 89 | return checkOpen(() -> proxy.mapSize(mapName)); |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 90 | } |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 91 | |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 92 | @Override |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 93 | public CompletableFuture<Boolean> mapIsEmpty(String mapName) { |
| 94 | return checkOpen(() -> proxy.mapIsEmpty(mapName)); |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 95 | } |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 96 | |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 97 | @Override |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 98 | public CompletableFuture<Boolean> mapContainsKey(String mapName, String key) { |
| 99 | return checkOpen(() -> proxy.mapContainsKey(mapName, key)); |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 100 | } |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 101 | |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 102 | @Override |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 103 | public CompletableFuture<Boolean> mapContainsValue(String mapName, byte[] value) { |
| 104 | return checkOpen(() -> proxy.mapContainsValue(mapName, value)); |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 105 | } |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 106 | |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 107 | @Override |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 108 | public CompletableFuture<Versioned<byte[]>> mapGet(String mapName, String key) { |
| 109 | return checkOpen(() -> proxy.mapGet(mapName, key)); |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 110 | } |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 111 | |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 112 | @Override |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 113 | public CompletableFuture<Result<UpdateResult<String, byte[]>>> mapUpdate( |
| 114 | String mapName, String key, Match<byte[]> valueMatch, Match<Long> versionMatch, byte[] value) { |
| 115 | return checkOpen(() -> proxy.mapUpdate(mapName, key, valueMatch, versionMatch, value)); |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 116 | } |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 117 | |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 118 | @Override |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 119 | public CompletableFuture<Result<Void>> mapClear(String mapName) { |
| 120 | return checkOpen(() -> proxy.mapClear(mapName)); |
Madan Jampani | 346d4f5 | 2015-05-04 11:09:39 -0700 | [diff] [blame] | 121 | } |
| 122 | |
| 123 | @Override |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 124 | public CompletableFuture<Set<String>> mapKeySet(String mapName) { |
| 125 | return checkOpen(() -> proxy.mapKeySet(mapName)); |
Madan Jampani | 346d4f5 | 2015-05-04 11:09:39 -0700 | [diff] [blame] | 126 | } |
| 127 | |
| 128 | @Override |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 129 | public CompletableFuture<Collection<Versioned<byte[]>>> mapValues(String mapName) { |
| 130 | return checkOpen(() -> proxy.mapValues(mapName)); |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 131 | } |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 132 | |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 133 | @Override |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 134 | public CompletableFuture<Set<Map.Entry<String, Versioned<byte[]>>>> mapEntrySet(String mapName) { |
| 135 | return checkOpen(() -> proxy.mapEntrySet(mapName)); |
Madan Jampani | 346d4f5 | 2015-05-04 11:09:39 -0700 | [diff] [blame] | 136 | } |
| 137 | |
| 138 | @Override |
Madan Jampani | 04aeb45 | 2015-05-02 16:12:24 -0700 | [diff] [blame] | 139 | public CompletableFuture<Long> counterGet(String counterName) { |
| 140 | return checkOpen(() -> proxy.counterGet(counterName)); |
Madan Jampani | b5d72d5 | 2015-04-03 16:53:50 -0700 | [diff] [blame] | 141 | } |
| 142 | |
| 143 | @Override |
Madan Jampani | 04aeb45 | 2015-05-02 16:12:24 -0700 | [diff] [blame] | 144 | public CompletableFuture<Long> counterAddAndGet(String counterName, long delta) { |
| 145 | return checkOpen(() -> proxy.counterAddAndGet(counterName, delta)); |
| 146 | } |
| 147 | |
| 148 | @Override |
| 149 | public CompletableFuture<Long> counterGetAndAdd(String counterName, long delta) { |
| 150 | return checkOpen(() -> proxy.counterGetAndAdd(counterName, delta)); |
Madan Jampani | b5d72d5 | 2015-04-03 16:53:50 -0700 | [diff] [blame] | 151 | } |
| 152 | |
| 153 | @Override |
andrea | fd912ac | 2015-10-02 14:58:35 -0700 | [diff] [blame] | 154 | public CompletableFuture<Void> counterSet(String counterName, long value) { |
| 155 | return checkOpen(() -> proxy.counterSet(counterName, value)); |
| 156 | } |
| 157 | |
| 158 | @Override |
Aaron Kruglikov | 82fd632 | 2015-10-06 12:02:46 -0700 | [diff] [blame] | 159 | public CompletableFuture<Boolean> counterCompareAndSet(String counterName, long expectedValue, long update) { |
| 160 | return checkOpen(() -> proxy.counterCompareAndSet(counterName, expectedValue, update)); |
| 161 | } |
| 162 | |
| 163 | @Override |
Madan Jampani | 63c659f | 2015-06-11 00:52:58 -0700 | [diff] [blame] | 164 | public CompletableFuture<Long> queueSize(String queueName) { |
| 165 | return checkOpen(() -> proxy.queueSize(queueName)); |
| 166 | } |
| 167 | |
| 168 | @Override |
Madan Jampani | a6d787b | 2015-08-11 11:02:02 -0700 | [diff] [blame] | 169 | public CompletableFuture<Void> queuePush(String queueName, byte[] entry) { |
Madan Jampani | 63c659f | 2015-06-11 00:52:58 -0700 | [diff] [blame] | 170 | return checkOpen(() -> proxy.queuePush(queueName, entry)); |
| 171 | } |
| 172 | |
| 173 | @Override |
Madan Jampani | a6d787b | 2015-08-11 11:02:02 -0700 | [diff] [blame] | 174 | public CompletableFuture<byte[]> queuePop(String queueName) { |
| 175 | return checkOpen(() -> proxy.queuePop(queueName)); |
Madan Jampani | 63c659f | 2015-06-11 00:52:58 -0700 | [diff] [blame] | 176 | } |
| 177 | |
| 178 | @Override |
| 179 | public CompletableFuture<byte[]> queuePeek(String queueName) { |
| 180 | return checkOpen(() -> proxy.queuePeek(queueName)); |
| 181 | } |
| 182 | |
| 183 | @Override |
Madan Jampani | bab51a4 | 2015-08-10 13:53:35 -0700 | [diff] [blame] | 184 | public CompletableFuture<CommitResponse> prepareAndCommit(Transaction transaction) { |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 185 | return checkOpen(() -> proxy.prepareAndCommit(transaction)); |
| 186 | } |
| 187 | |
| 188 | @Override |
| 189 | public CompletableFuture<Boolean> prepare(Transaction transaction) { |
| 190 | return checkOpen(() -> proxy.prepare(transaction)); |
| 191 | } |
| 192 | |
| 193 | @Override |
Madan Jampani | bab51a4 | 2015-08-10 13:53:35 -0700 | [diff] [blame] | 194 | public CompletableFuture<CommitResponse> commit(Transaction transaction) { |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 195 | return checkOpen(() -> proxy.commit(transaction)); |
| 196 | } |
| 197 | |
| 198 | @Override |
| 199 | public CompletableFuture<Boolean> rollback(Transaction transaction) { |
| 200 | return checkOpen(() -> proxy.rollback(transaction)); |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 201 | } |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 202 | |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 203 | @Override |
| 204 | @SuppressWarnings("unchecked") |
| 205 | public synchronized CompletableFuture<Database> open() { |
| 206 | return runStartupTasks() |
| 207 | .thenCompose(v -> stateMachine.open()) |
| 208 | .thenRun(() -> { |
| 209 | this.proxy = stateMachine.createProxy(DatabaseProxy.class, this.getClass().getClassLoader()); |
| 210 | }) |
| 211 | .thenApply(v -> null); |
| 212 | } |
| 213 | |
| 214 | @Override |
| 215 | public synchronized CompletableFuture<Void> close() { |
| 216 | proxy = null; |
| 217 | return stateMachine.close() |
| 218 | .thenCompose(v -> runShutdownTasks()); |
| 219 | } |
| 220 | |
| 221 | @Override |
| 222 | public int hashCode() { |
| 223 | return name().hashCode(); |
| 224 | } |
| 225 | |
| 226 | @Override |
| 227 | public boolean equals(Object other) { |
| 228 | if (other instanceof Database) { |
| 229 | return name().equals(((Database) other).name()); |
| 230 | } |
| 231 | return false; |
| 232 | } |
Madan Jampani | 648451f | 2015-07-21 22:09:05 -0700 | [diff] [blame] | 233 | |
| 234 | @Override |
| 235 | public void registerConsumer(Consumer<StateMachineUpdate> consumer) { |
| 236 | consumers.add(consumer); |
| 237 | } |
| 238 | |
| 239 | @Override |
| 240 | public void unregisterConsumer(Consumer<StateMachineUpdate> consumer) { |
| 241 | consumers.remove(consumer); |
| 242 | } |
| 243 | |
Madan Jampani | 648451f | 2015-07-21 22:09:05 -0700 | [diff] [blame] | 244 | private class InternalStateMachineWatcher implements TriConsumer<String, Object, Object> { |
| 245 | @Override |
| 246 | public void accept(String name, Object input, Object output) { |
| 247 | StateMachineUpdate update = new StateMachineUpdate(name, input, output); |
| 248 | consumers.forEach(consumer -> consumer.accept(update)); |
| 249 | } |
| 250 | } |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 251 | } |