Madan Jampani | 6468955 | 2015-02-17 10:00:27 -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 | |
| 17 | package org.onosproject.store.consistent.impl; |
| 18 | |
| 19 | import java.util.List; |
| 20 | import java.util.Map; |
Madan Jampani | 50589ac | 2015-06-08 11:38:46 -0700 | [diff] [blame] | 21 | import java.util.function.Supplier; |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 22 | |
| 23 | import static com.google.common.base.Preconditions.*; |
| 24 | |
Madan Jampani | 50589ac | 2015-06-08 11:38:46 -0700 | [diff] [blame] | 25 | import org.onosproject.store.service.ConsistentMapBuilder; |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 26 | import org.onosproject.store.service.DatabaseUpdate; |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 27 | import org.onosproject.store.service.Serializer; |
Madan Jampani | bab51a4 | 2015-08-10 13:53:35 -0700 | [diff] [blame] | 28 | import org.onosproject.store.service.Transaction; |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 29 | import org.onosproject.store.service.TransactionContext; |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 30 | import org.onosproject.store.service.TransactionalMap; |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 31 | |
| 32 | import com.google.common.collect.Lists; |
| 33 | import com.google.common.collect.Maps; |
Madan Jampani | bab51a4 | 2015-08-10 13:53:35 -0700 | [diff] [blame] | 34 | import com.google.common.util.concurrent.Futures; |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 35 | |
| 36 | /** |
| 37 | * Default TransactionContext implementation. |
| 38 | */ |
| 39 | public class DefaultTransactionContext implements TransactionContext { |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 40 | private static final String TX_NOT_OPEN_ERROR = "Transaction Context is not open"; |
| 41 | |
| 42 | @SuppressWarnings("rawtypes") |
| 43 | private final Map<String, DefaultTransactionalMap> txMaps = Maps.newConcurrentMap(); |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 44 | private boolean isOpen = false; |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 45 | private final Database database; |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 46 | private final long transactionId; |
Madan Jampani | 50589ac | 2015-06-08 11:38:46 -0700 | [diff] [blame] | 47 | private final Supplier<ConsistentMapBuilder> mapBuilderSupplier; |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 48 | |
Madan Jampani | 50589ac | 2015-06-08 11:38:46 -0700 | [diff] [blame] | 49 | public DefaultTransactionContext(long transactionId, |
| 50 | Database database, |
| 51 | Supplier<ConsistentMapBuilder> mapBuilderSupplier) { |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 52 | this.transactionId = transactionId; |
Madan Jampani | 50589ac | 2015-06-08 11:38:46 -0700 | [diff] [blame] | 53 | this.database = checkNotNull(database); |
| 54 | this.mapBuilderSupplier = checkNotNull(mapBuilderSupplier); |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 55 | } |
| 56 | |
| 57 | @Override |
| 58 | public long transactionId() { |
| 59 | return transactionId; |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 60 | } |
| 61 | |
| 62 | @Override |
| 63 | public void begin() { |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 64 | checkState(!isOpen, "Transaction Context is already open"); |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 65 | isOpen = true; |
| 66 | } |
| 67 | |
| 68 | @Override |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 69 | public boolean isOpen() { |
| 70 | return isOpen; |
| 71 | } |
| 72 | |
| 73 | @Override |
Ray Milkey | 8dc8208 | 2015-02-20 16:22:38 -0800 | [diff] [blame] | 74 | @SuppressWarnings("unchecked") |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 75 | public <K, V> TransactionalMap<K, V> getTransactionalMap(String mapName, |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 76 | Serializer serializer) { |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 77 | checkState(isOpen, TX_NOT_OPEN_ERROR); |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 78 | checkNotNull(mapName); |
| 79 | checkNotNull(serializer); |
| 80 | return txMaps.computeIfAbsent(mapName, name -> new DefaultTransactionalMap<>( |
| 81 | name, |
Madan Jampani | 50589ac | 2015-06-08 11:38:46 -0700 | [diff] [blame] | 82 | mapBuilderSupplier.get().withName(name).withSerializer(serializer).build(), |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 83 | this, |
| 84 | serializer)); |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 85 | } |
| 86 | |
Ray Milkey | 8dc8208 | 2015-02-20 16:22:38 -0800 | [diff] [blame] | 87 | @SuppressWarnings("unchecked") |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 88 | @Override |
Sho SHIMIZU | d936b42 | 2015-11-02 16:38:18 -0800 | [diff] [blame] | 89 | public boolean commit() { |
Madan Jampani | bab51a4 | 2015-08-10 13:53:35 -0700 | [diff] [blame] | 90 | // TODO: rework commit implementation to be more intuitive |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 91 | checkState(isOpen, TX_NOT_OPEN_ERROR); |
Madan Jampani | bab51a4 | 2015-08-10 13:53:35 -0700 | [diff] [blame] | 92 | CommitResponse response = null; |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 93 | try { |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 94 | List<DatabaseUpdate> updates = Lists.newLinkedList(); |
Madan Jampani | bab51a4 | 2015-08-10 13:53:35 -0700 | [diff] [blame] | 95 | txMaps.values().forEach(m -> updates.addAll(m.prepareDatabaseUpdates())); |
| 96 | Transaction transaction = new DefaultTransaction(transactionId, updates); |
| 97 | response = Futures.getUnchecked(database.prepareAndCommit(transaction)); |
Sho SHIMIZU | d936b42 | 2015-11-02 16:38:18 -0800 | [diff] [blame] | 98 | return response.success(); |
| 99 | } catch (Exception e) { |
| 100 | abort(); |
| 101 | return false; |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 102 | } finally { |
| 103 | isOpen = false; |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | @Override |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 108 | public void abort() { |
Madan Jampani | bab51a4 | 2015-08-10 13:53:35 -0700 | [diff] [blame] | 109 | if (isOpen) { |
| 110 | try { |
| 111 | txMaps.values().forEach(m -> m.rollback()); |
| 112 | } finally { |
| 113 | isOpen = false; |
| 114 | } |
| 115 | } |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 116 | } |
Madan Jampani | 02b7fb8 | 2015-05-01 13:01:20 -0700 | [diff] [blame] | 117 | } |