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 | |
| 19 | import java.util.Collection; |
| 20 | import java.util.List; |
| 21 | import java.util.Map; |
| 22 | import java.util.Map.Entry; |
| 23 | import java.util.Set; |
| 24 | import java.util.concurrent.CompletableFuture; |
| 25 | import java.util.concurrent.CopyOnWriteArrayList; |
| 26 | import java.util.concurrent.atomic.AtomicBoolean; |
| 27 | import java.util.concurrent.atomic.AtomicInteger; |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 28 | import java.util.stream.Collectors; |
Madan Jampani | 393e0f0 | 2015-02-12 07:35:39 +0530 | [diff] [blame] | 29 | |
Madan Jampani | 63c659f | 2015-06-11 00:52:58 -0700 | [diff] [blame] | 30 | import org.onosproject.cluster.NodeId; |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 31 | import org.onosproject.store.service.DatabaseUpdate; |
| 32 | import org.onosproject.store.service.Transaction; |
Madan Jampani | 393e0f0 | 2015-02-12 07:35:39 +0530 | [diff] [blame] | 33 | import org.onosproject.store.service.Versioned; |
| 34 | |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 35 | import com.google.common.collect.Lists; |
| 36 | import com.google.common.collect.Maps; |
| 37 | import com.google.common.collect.Sets; |
| 38 | |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 39 | import net.kuujo.copycat.Task; |
| 40 | import net.kuujo.copycat.cluster.Cluster; |
Madan Jampani | ed1b7fc | 2015-04-27 23:30:07 -0700 | [diff] [blame] | 41 | import net.kuujo.copycat.resource.ResourceState; |
Madan Jampani | 7f72c3f | 2015-03-01 17:34:59 -0800 | [diff] [blame] | 42 | import static com.google.common.base.Preconditions.checkState; |
| 43 | |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 44 | /** |
| 45 | * A database that partitions the keys across one or more database partitions. |
| 46 | */ |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 47 | public class PartitionedDatabase implements Database { |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 48 | |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 49 | private final String name; |
| 50 | private final Partitioner<String> partitioner; |
| 51 | private final List<Database> partitions; |
Madan Jampani | 7f72c3f | 2015-03-01 17:34:59 -0800 | [diff] [blame] | 52 | private final AtomicBoolean isOpen = new AtomicBoolean(false); |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 53 | private static final String DB_NOT_OPEN = "Partitioned Database is not open"; |
Madan Jampani | 50589ac | 2015-06-08 11:38:46 -0700 | [diff] [blame] | 54 | private TransactionManager transactionManager; |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 55 | |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 56 | public PartitionedDatabase( |
| 57 | String name, |
| 58 | Collection<Database> partitions) { |
| 59 | this.name = name; |
| 60 | this.partitions = partitions |
| 61 | .stream() |
| 62 | .sorted((db1, db2) -> db1.name().compareTo(db2.name())) |
| 63 | .collect(Collectors.toList()); |
| 64 | this.partitioner = new SimpleKeyHashPartitioner(this.partitions); |
| 65 | } |
| 66 | |
| 67 | /** |
| 68 | * Returns the databases for individual partitions. |
| 69 | * @return list of database partitions |
| 70 | */ |
| 71 | public List<Database> getPartitions() { |
| 72 | return partitions; |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 73 | } |
| 74 | |
Madan Jampani | 7f72c3f | 2015-03-01 17:34:59 -0800 | [diff] [blame] | 75 | /** |
| 76 | * Returns true if the database is open. |
| 77 | * @return true if open, false otherwise |
| 78 | */ |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 79 | @Override |
Madan Jampani | 7f72c3f | 2015-03-01 17:34:59 -0800 | [diff] [blame] | 80 | public boolean isOpen() { |
| 81 | return isOpen.get(); |
| 82 | } |
| 83 | |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 84 | @Override |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 85 | public CompletableFuture<Set<String>> maps() { |
Madan Jampani | a89f8f9 | 2015-04-01 14:39:54 -0700 | [diff] [blame] | 86 | checkState(isOpen.get(), DB_NOT_OPEN); |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 87 | Set<String> mapNames = Sets.newConcurrentHashSet(); |
Madan Jampani | a89f8f9 | 2015-04-01 14:39:54 -0700 | [diff] [blame] | 88 | return CompletableFuture.allOf(partitions |
| 89 | .stream() |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 90 | .map(db -> db.maps().thenApply(mapNames::addAll)) |
Madan Jampani | a89f8f9 | 2015-04-01 14:39:54 -0700 | [diff] [blame] | 91 | .toArray(CompletableFuture[]::new)) |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 92 | .thenApply(v -> mapNames); |
Madan Jampani | a89f8f9 | 2015-04-01 14:39:54 -0700 | [diff] [blame] | 93 | } |
| 94 | |
| 95 | @Override |
Madan Jampani | b5d72d5 | 2015-04-03 16:53:50 -0700 | [diff] [blame] | 96 | public CompletableFuture<Map<String, Long>> counters() { |
| 97 | checkState(isOpen.get(), DB_NOT_OPEN); |
| 98 | Map<String, Long> counters = Maps.newConcurrentMap(); |
| 99 | return CompletableFuture.allOf(partitions |
| 100 | .stream() |
| 101 | .map(db -> db.counters() |
| 102 | .thenApply(m -> { |
| 103 | counters.putAll(m); |
| 104 | return null; |
| 105 | })) |
| 106 | .toArray(CompletableFuture[]::new)) |
| 107 | .thenApply(v -> counters); |
| 108 | } |
| 109 | |
| 110 | @Override |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 111 | public CompletableFuture<Integer> mapSize(String mapName) { |
Madan Jampani | 7f72c3f | 2015-03-01 17:34:59 -0800 | [diff] [blame] | 112 | checkState(isOpen.get(), DB_NOT_OPEN); |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 113 | AtomicInteger totalSize = new AtomicInteger(0); |
| 114 | return CompletableFuture.allOf(partitions |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 115 | .stream() |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 116 | .map(p -> p.mapSize(mapName).thenApply(totalSize::addAndGet)) |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 117 | .toArray(CompletableFuture[]::new)) |
| 118 | .thenApply(v -> totalSize.get()); |
| 119 | } |
| 120 | |
| 121 | @Override |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 122 | public CompletableFuture<Boolean> mapIsEmpty(String mapName) { |
Madan Jampani | 7f72c3f | 2015-03-01 17:34:59 -0800 | [diff] [blame] | 123 | checkState(isOpen.get(), DB_NOT_OPEN); |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 124 | return mapSize(mapName).thenApply(size -> size == 0); |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 125 | } |
| 126 | |
| 127 | @Override |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 128 | public CompletableFuture<Boolean> mapContainsKey(String mapName, String key) { |
Madan Jampani | 7f72c3f | 2015-03-01 17:34:59 -0800 | [diff] [blame] | 129 | checkState(isOpen.get(), DB_NOT_OPEN); |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 130 | return partitioner.getPartition(mapName, key).mapContainsKey(mapName, key); |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 131 | } |
| 132 | |
| 133 | @Override |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 134 | public CompletableFuture<Boolean> mapContainsValue(String mapName, byte[] value) { |
Madan Jampani | 7f72c3f | 2015-03-01 17:34:59 -0800 | [diff] [blame] | 135 | checkState(isOpen.get(), DB_NOT_OPEN); |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 136 | AtomicBoolean containsValue = new AtomicBoolean(false); |
| 137 | return CompletableFuture.allOf(partitions |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 138 | .stream() |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 139 | .map(p -> p.mapContainsValue(mapName, value) |
| 140 | .thenApply(v -> containsValue.compareAndSet(false, v))) |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 141 | .toArray(CompletableFuture[]::new)) |
| 142 | .thenApply(v -> containsValue.get()); |
| 143 | } |
| 144 | |
| 145 | @Override |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 146 | public CompletableFuture<Versioned<byte[]>> mapGet(String mapName, String key) { |
Madan Jampani | 7f72c3f | 2015-03-01 17:34:59 -0800 | [diff] [blame] | 147 | checkState(isOpen.get(), DB_NOT_OPEN); |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 148 | return partitioner.getPartition(mapName, key).mapGet(mapName, key); |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 149 | } |
| 150 | |
| 151 | @Override |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 152 | public CompletableFuture<Result<UpdateResult<String, byte[]>>> mapUpdate( |
| 153 | String mapName, String key, Match<byte[]> valueMatch, |
| 154 | Match<Long> versionMatch, byte[] value) { |
| 155 | return partitioner.getPartition(mapName, key).mapUpdate(mapName, key, valueMatch, versionMatch, value); |
| 156 | |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 157 | } |
| 158 | |
| 159 | @Override |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 160 | public CompletableFuture<Result<Void>> mapClear(String mapName) { |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 161 | AtomicBoolean isLocked = new AtomicBoolean(false); |
Madan Jampani | 7f72c3f | 2015-03-01 17:34:59 -0800 | [diff] [blame] | 162 | checkState(isOpen.get(), DB_NOT_OPEN); |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 163 | return CompletableFuture.allOf(partitions |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 164 | .stream() |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 165 | .map(p -> p.mapClear(mapName) |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 166 | .thenApply(v -> isLocked.compareAndSet(false, Result.Status.LOCKED == v.status()))) |
| 167 | .toArray(CompletableFuture[]::new)) |
| 168 | .thenApply(v -> isLocked.get() ? Result.locked() : Result.ok(null)); |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 169 | } |
| 170 | |
| 171 | @Override |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 172 | public CompletableFuture<Set<String>> mapKeySet(String mapName) { |
Madan Jampani | 7f72c3f | 2015-03-01 17:34:59 -0800 | [diff] [blame] | 173 | checkState(isOpen.get(), DB_NOT_OPEN); |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 174 | Set<String> keySet = Sets.newConcurrentHashSet(); |
| 175 | return CompletableFuture.allOf(partitions |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 176 | .stream() |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 177 | .map(p -> p.mapKeySet(mapName).thenApply(keySet::addAll)) |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 178 | .toArray(CompletableFuture[]::new)) |
| 179 | .thenApply(v -> keySet); |
| 180 | } |
| 181 | |
| 182 | @Override |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 183 | public CompletableFuture<Collection<Versioned<byte[]>>> mapValues(String mapName) { |
Madan Jampani | 7f72c3f | 2015-03-01 17:34:59 -0800 | [diff] [blame] | 184 | checkState(isOpen.get(), DB_NOT_OPEN); |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 185 | List<Versioned<byte[]>> values = new CopyOnWriteArrayList<>(); |
| 186 | return CompletableFuture.allOf(partitions |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 187 | .stream() |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 188 | .map(p -> p.mapValues(mapName).thenApply(values::addAll)) |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 189 | .toArray(CompletableFuture[]::new)) |
| 190 | .thenApply(v -> values); |
| 191 | } |
| 192 | |
| 193 | @Override |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 194 | public CompletableFuture<Set<Entry<String, Versioned<byte[]>>>> mapEntrySet(String mapName) { |
Madan Jampani | 7f72c3f | 2015-03-01 17:34:59 -0800 | [diff] [blame] | 195 | checkState(isOpen.get(), DB_NOT_OPEN); |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 196 | Set<Entry<String, Versioned<byte[]>>> entrySet = Sets.newConcurrentHashSet(); |
| 197 | return CompletableFuture.allOf(partitions |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 198 | .stream() |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 199 | .map(p -> p.mapEntrySet(mapName).thenApply(entrySet::addAll)) |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 200 | .toArray(CompletableFuture[]::new)) |
| 201 | .thenApply(v -> entrySet); |
| 202 | } |
| 203 | |
| 204 | @Override |
Madan Jampani | 04aeb45 | 2015-05-02 16:12:24 -0700 | [diff] [blame] | 205 | public CompletableFuture<Long> counterGet(String counterName) { |
Madan Jampani | b5d72d5 | 2015-04-03 16:53:50 -0700 | [diff] [blame] | 206 | checkState(isOpen.get(), DB_NOT_OPEN); |
Madan Jampani | 04aeb45 | 2015-05-02 16:12:24 -0700 | [diff] [blame] | 207 | return partitioner.getPartition(counterName, counterName).counterGet(counterName); |
Madan Jampani | b5d72d5 | 2015-04-03 16:53:50 -0700 | [diff] [blame] | 208 | } |
| 209 | |
| 210 | @Override |
Madan Jampani | 04aeb45 | 2015-05-02 16:12:24 -0700 | [diff] [blame] | 211 | public CompletableFuture<Long> counterAddAndGet(String counterName, long delta) { |
Madan Jampani | b5d72d5 | 2015-04-03 16:53:50 -0700 | [diff] [blame] | 212 | checkState(isOpen.get(), DB_NOT_OPEN); |
Madan Jampani | 04aeb45 | 2015-05-02 16:12:24 -0700 | [diff] [blame] | 213 | return partitioner.getPartition(counterName, counterName).counterAddAndGet(counterName, delta); |
| 214 | } |
| 215 | |
| 216 | @Override |
| 217 | public CompletableFuture<Long> counterGetAndAdd(String counterName, long delta) { |
| 218 | checkState(isOpen.get(), DB_NOT_OPEN); |
| 219 | return partitioner.getPartition(counterName, counterName).counterGetAndAdd(counterName, delta); |
Madan Jampani | b5d72d5 | 2015-04-03 16:53:50 -0700 | [diff] [blame] | 220 | } |
| 221 | |
Madan Jampani | 63c659f | 2015-06-11 00:52:58 -0700 | [diff] [blame] | 222 | |
| 223 | @Override |
| 224 | public CompletableFuture<Long> queueSize(String queueName) { |
| 225 | checkState(isOpen.get(), DB_NOT_OPEN); |
| 226 | return partitioner.getPartition(queueName, queueName).queueSize(queueName); |
| 227 | } |
| 228 | |
| 229 | @Override |
| 230 | public CompletableFuture<Set<NodeId>> queuePush(String queueName, byte[] entry) { |
| 231 | checkState(isOpen.get(), DB_NOT_OPEN); |
| 232 | return partitioner.getPartition(queueName, queueName).queuePush(queueName, entry); |
| 233 | } |
| 234 | |
| 235 | @Override |
| 236 | public CompletableFuture<byte[]> queuePop(String queueName, NodeId nodeId) { |
| 237 | checkState(isOpen.get(), DB_NOT_OPEN); |
| 238 | return partitioner.getPartition(queueName, queueName).queuePop(queueName, nodeId); |
| 239 | } |
| 240 | |
| 241 | @Override |
| 242 | public CompletableFuture<byte[]> queuePeek(String queueName) { |
| 243 | checkState(isOpen.get(), DB_NOT_OPEN); |
| 244 | return partitioner.getPartition(queueName, queueName).queuePeek(queueName); |
| 245 | } |
| 246 | |
Madan Jampani | b5d72d5 | 2015-04-03 16:53:50 -0700 | [diff] [blame] | 247 | @Override |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 248 | public CompletableFuture<Boolean> prepareAndCommit(Transaction transaction) { |
| 249 | Map<Database, Transaction> subTransactions = createSubTransactions(transaction); |
| 250 | if (subTransactions.isEmpty()) { |
| 251 | return CompletableFuture.completedFuture(true); |
| 252 | } else if (subTransactions.size() == 1) { |
| 253 | Entry<Database, Transaction> entry = |
| 254 | subTransactions.entrySet().iterator().next(); |
| 255 | return entry.getKey().prepareAndCommit(entry.getValue()); |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 256 | } else { |
Madan Jampani | 98166f9 | 2015-06-26 15:12:33 -0700 | [diff] [blame] | 257 | if (transactionManager == null) { |
Madan Jampani | 50589ac | 2015-06-08 11:38:46 -0700 | [diff] [blame] | 258 | throw new IllegalStateException("TransactionManager is not initialized"); |
| 259 | } |
| 260 | return transactionManager.execute(transaction); |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 261 | } |
| 262 | } |
| 263 | |
| 264 | @Override |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 265 | public CompletableFuture<Boolean> prepare(Transaction transaction) { |
| 266 | Map<Database, Transaction> subTransactions = createSubTransactions(transaction); |
| 267 | AtomicBoolean status = new AtomicBoolean(true); |
| 268 | return CompletableFuture.allOf(subTransactions.entrySet() |
| 269 | .stream() |
| 270 | .map(entry -> entry |
| 271 | .getKey() |
| 272 | .prepare(entry.getValue()) |
| 273 | .thenApply(v -> status.compareAndSet(true, v))) |
| 274 | .toArray(CompletableFuture[]::new)) |
| 275 | .thenApply(v -> status.get()); |
| 276 | } |
| 277 | |
| 278 | @Override |
| 279 | public CompletableFuture<Boolean> commit(Transaction transaction) { |
| 280 | Map<Database, Transaction> subTransactions = createSubTransactions(transaction); |
| 281 | return CompletableFuture.allOf(subTransactions.entrySet() |
| 282 | .stream() |
| 283 | .map(entry -> entry.getKey().commit(entry.getValue())) |
| 284 | .toArray(CompletableFuture[]::new)) |
| 285 | .thenApply(v -> true); |
| 286 | } |
| 287 | |
| 288 | @Override |
| 289 | public CompletableFuture<Boolean> rollback(Transaction transaction) { |
| 290 | Map<Database, Transaction> subTransactions = createSubTransactions(transaction); |
| 291 | return CompletableFuture.allOf(subTransactions.entrySet() |
| 292 | .stream() |
| 293 | .map(entry -> entry.getKey().rollback(entry.getValue())) |
| 294 | .toArray(CompletableFuture[]::new)) |
| 295 | .thenApply(v -> true); |
| 296 | } |
| 297 | |
| 298 | @Override |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 299 | public CompletableFuture<Database> open() { |
| 300 | return CompletableFuture.allOf(partitions |
| 301 | .stream() |
| 302 | .map(Database::open) |
| 303 | .toArray(CompletableFuture[]::new)) |
| 304 | .thenApply(v -> { |
| 305 | isOpen.set(true); |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 306 | return this; |
| 307 | }); |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 308 | } |
| 309 | |
| 310 | @Override |
| 311 | public CompletableFuture<Void> close() { |
Madan Jampani | 7f72c3f | 2015-03-01 17:34:59 -0800 | [diff] [blame] | 312 | checkState(isOpen.get(), DB_NOT_OPEN); |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 313 | return CompletableFuture.allOf(partitions |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 314 | .stream() |
| 315 | .map(database -> database.close()) |
Madan Jampani | 0934270 | 2015-02-05 23:32:40 -0800 | [diff] [blame] | 316 | .toArray(CompletableFuture[]::new)); |
Madan Jampani | 94c2353 | 2015-02-05 17:40:01 -0800 | [diff] [blame] | 317 | } |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 318 | |
| 319 | @Override |
| 320 | public boolean isClosed() { |
| 321 | return !isOpen.get(); |
| 322 | } |
| 323 | |
| 324 | @Override |
| 325 | public String name() { |
| 326 | return name; |
| 327 | } |
| 328 | |
| 329 | @Override |
| 330 | public Cluster cluster() { |
| 331 | throw new UnsupportedOperationException(); |
| 332 | } |
| 333 | |
| 334 | @Override |
| 335 | public Database addStartupTask(Task<CompletableFuture<Void>> task) { |
| 336 | throw new UnsupportedOperationException(); |
| 337 | } |
| 338 | |
| 339 | @Override |
| 340 | public Database addShutdownTask(Task<CompletableFuture<Void>> task) { |
| 341 | throw new UnsupportedOperationException(); |
| 342 | } |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 343 | |
Madan Jampani | ed1b7fc | 2015-04-27 23:30:07 -0700 | [diff] [blame] | 344 | @Override |
| 345 | public ResourceState state() { |
| 346 | throw new UnsupportedOperationException(); |
| 347 | } |
| 348 | |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 349 | private Map<Database, Transaction> createSubTransactions( |
| 350 | Transaction transaction) { |
| 351 | Map<Database, List<DatabaseUpdate>> perPartitionUpdates = Maps.newHashMap(); |
| 352 | for (DatabaseUpdate update : transaction.updates()) { |
Madan Jampani | 7804c99 | 2015-07-20 13:20:19 -0700 | [diff] [blame] | 353 | Database partition = partitioner.getPartition(update.mapName(), update.key()); |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 354 | List<DatabaseUpdate> partitionUpdates = |
| 355 | perPartitionUpdates.computeIfAbsent(partition, k -> Lists.newLinkedList()); |
| 356 | partitionUpdates.add(update); |
| 357 | } |
| 358 | Map<Database, Transaction> subTransactions = Maps.newHashMap(); |
| 359 | perPartitionUpdates.forEach((k, v) -> subTransactions.put(k, new DefaultTransaction(transaction.id(), v))); |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 360 | return subTransactions; |
| 361 | } |
Madan Jampani | 50589ac | 2015-06-08 11:38:46 -0700 | [diff] [blame] | 362 | |
Ayaka Koshibe | 94cc01b | 2015-06-26 15:39:11 -0700 | [diff] [blame] | 363 | protected void setTransactionManager(TransactionManager transactionManager) { |
Madan Jampani | 50589ac | 2015-06-08 11:38:46 -0700 | [diff] [blame] | 364 | this.transactionManager = transactionManager; |
| 365 | } |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 366 | } |