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; |
| 28 | import org.onosproject.store.service.TransactionContext; |
| 29 | import org.onosproject.store.service.TransactionException; |
| 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; |
| 34 | |
| 35 | /** |
| 36 | * Default TransactionContext implementation. |
| 37 | */ |
| 38 | public class DefaultTransactionContext implements TransactionContext { |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 39 | private static final String TX_NOT_OPEN_ERROR = "Transaction Context is not open"; |
| 40 | |
| 41 | @SuppressWarnings("rawtypes") |
| 42 | private final Map<String, DefaultTransactionalMap> txMaps = Maps.newConcurrentMap(); |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 43 | private boolean isOpen = false; |
Madan Jampani | f1b8e17 | 2015-03-23 11:42:02 -0700 | [diff] [blame] | 44 | private final Database database; |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 45 | private final long transactionId; |
Madan Jampani | 50589ac | 2015-06-08 11:38:46 -0700 | [diff] [blame] | 46 | private final Supplier<ConsistentMapBuilder> mapBuilderSupplier; |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 47 | |
Madan Jampani | 50589ac | 2015-06-08 11:38:46 -0700 | [diff] [blame] | 48 | public DefaultTransactionContext(long transactionId, |
| 49 | Database database, |
| 50 | Supplier<ConsistentMapBuilder> mapBuilderSupplier) { |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 51 | this.transactionId = transactionId; |
Madan Jampani | 50589ac | 2015-06-08 11:38:46 -0700 | [diff] [blame] | 52 | this.database = checkNotNull(database); |
| 53 | this.mapBuilderSupplier = checkNotNull(mapBuilderSupplier); |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 54 | } |
| 55 | |
| 56 | @Override |
| 57 | public long transactionId() { |
| 58 | return transactionId; |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 59 | } |
| 60 | |
| 61 | @Override |
| 62 | public void begin() { |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 63 | checkState(!isOpen, "Transaction Context is already open"); |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 64 | isOpen = true; |
| 65 | } |
| 66 | |
| 67 | @Override |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 68 | public boolean isOpen() { |
| 69 | return isOpen; |
| 70 | } |
| 71 | |
| 72 | @Override |
Ray Milkey | 8dc8208 | 2015-02-20 16:22:38 -0800 | [diff] [blame] | 73 | @SuppressWarnings("unchecked") |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 74 | public <K, V> TransactionalMap<K, V> getTransactionalMap(String mapName, |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 75 | Serializer serializer) { |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 76 | checkState(isOpen, TX_NOT_OPEN_ERROR); |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 77 | checkNotNull(mapName); |
| 78 | checkNotNull(serializer); |
| 79 | return txMaps.computeIfAbsent(mapName, name -> new DefaultTransactionalMap<>( |
| 80 | name, |
Madan Jampani | 50589ac | 2015-06-08 11:38:46 -0700 | [diff] [blame] | 81 | mapBuilderSupplier.get().withName(name).withSerializer(serializer).build(), |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 82 | this, |
| 83 | serializer)); |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 84 | } |
| 85 | |
Ray Milkey | 8dc8208 | 2015-02-20 16:22:38 -0800 | [diff] [blame] | 86 | @SuppressWarnings("unchecked") |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 87 | @Override |
| 88 | public void commit() { |
| 89 | checkState(isOpen, TX_NOT_OPEN_ERROR); |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 90 | try { |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 91 | List<DatabaseUpdate> updates = Lists.newLinkedList(); |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 92 | txMaps.values() |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 93 | .forEach(m -> { updates.addAll(m.prepareDatabaseUpdates()); }); |
Madan Jampani | 50589ac | 2015-06-08 11:38:46 -0700 | [diff] [blame] | 94 | // FIXME: Updates made via transactional context currently do not result in notifications. (ONOS-2097) |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 95 | database.prepareAndCommit(new DefaultTransaction(transactionId, updates)); |
| 96 | } catch (Exception e) { |
| 97 | abort(); |
| 98 | throw new TransactionException(e); |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 99 | } finally { |
| 100 | isOpen = false; |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | @Override |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 105 | public void abort() { |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 106 | checkState(isOpen, TX_NOT_OPEN_ERROR); |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 107 | txMaps.values().forEach(m -> m.rollback()); |
Madan Jampani | 6468955 | 2015-02-17 10:00:27 -0800 | [diff] [blame] | 108 | } |
Madan Jampani | 02b7fb8 | 2015-05-01 13:01:20 -0700 | [diff] [blame] | 109 | } |