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 | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 21 | |
| 22 | import static com.google.common.base.Preconditions.*; |
| 23 | |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 24 | import org.onosproject.store.service.DatabaseUpdate; |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 25 | import org.onosproject.store.service.Serializer; |
| 26 | import org.onosproject.store.service.TransactionContext; |
| 27 | import org.onosproject.store.service.TransactionException; |
| 28 | import org.onosproject.store.service.TransactionalMap; |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 29 | |
| 30 | import com.google.common.collect.Lists; |
| 31 | import com.google.common.collect.Maps; |
| 32 | |
| 33 | /** |
| 34 | * Default TransactionContext implementation. |
| 35 | */ |
| 36 | public class DefaultTransactionContext implements TransactionContext { |
| 37 | |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 38 | private static final String TX_NOT_OPEN_ERROR = "Transaction Context is not open"; |
| 39 | |
| 40 | @SuppressWarnings("rawtypes") |
| 41 | private final Map<String, DefaultTransactionalMap> txMaps = Maps.newConcurrentMap(); |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 42 | private boolean isOpen = false; |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 43 | private final Database database; |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 44 | private final long transactionId; |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 45 | |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 46 | public DefaultTransactionContext(Database database, long transactionId) { |
| 47 | this.database = checkNotNull(database); |
| 48 | this.transactionId = transactionId; |
| 49 | } |
| 50 | |
| 51 | @Override |
| 52 | public long transactionId() { |
| 53 | return transactionId; |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 54 | } |
| 55 | |
| 56 | @Override |
| 57 | public void begin() { |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 58 | checkState(!isOpen, "Transaction Context is already open"); |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 59 | isOpen = true; |
| 60 | } |
| 61 | |
| 62 | @Override |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 63 | public boolean isOpen() { |
| 64 | return isOpen; |
| 65 | } |
| 66 | |
| 67 | @Override |
Ray Milkey | 8dc8208 | 2015-02-20 16:22:38 -0800 | [diff] [blame] | 68 | @SuppressWarnings("unchecked") |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 69 | public <K, V> TransactionalMap<K, V> getTransactionalMap(String mapName, |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 70 | Serializer serializer) { |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 71 | checkState(isOpen, TX_NOT_OPEN_ERROR); |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 72 | checkNotNull(mapName); |
| 73 | checkNotNull(serializer); |
| 74 | return txMaps.computeIfAbsent(mapName, name -> new DefaultTransactionalMap<>( |
| 75 | name, |
| 76 | new DefaultConsistentMap<>(name, database, serializer), |
| 77 | this, |
| 78 | serializer)); |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 79 | } |
| 80 | |
Ray Milkey | 8dc8208 | 2015-02-20 16:22:38 -0800 | [diff] [blame] | 81 | @SuppressWarnings("unchecked") |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 82 | @Override |
| 83 | public void commit() { |
| 84 | checkState(isOpen, TX_NOT_OPEN_ERROR); |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 85 | try { |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 86 | List<DatabaseUpdate> updates = Lists.newLinkedList(); |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 87 | txMaps.values() |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 88 | .forEach(m -> { updates.addAll(m.prepareDatabaseUpdates()); }); |
| 89 | database.prepareAndCommit(new DefaultTransaction(transactionId, updates)); |
| 90 | } catch (Exception e) { |
| 91 | abort(); |
| 92 | throw new TransactionException(e); |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 93 | } finally { |
| 94 | isOpen = false; |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | @Override |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 99 | public void abort() { |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 100 | checkState(isOpen, TX_NOT_OPEN_ERROR); |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 101 | txMaps.values().forEach(m -> m.rollback()); |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 102 | } |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 103 | } |