Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 1 | /* |
Brian O'Connor | 5ab426f | 2016-04-09 01:19:45 -0700 | [diff] [blame] | 2 | * Copyright 2016-present Open Networking Laboratory |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 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 | package org.onosproject.store.primitives.impl; |
| 17 | |
Jordan Halterman | c955df7 | 2017-02-04 20:43:28 -0800 | [diff] [blame^] | 18 | import com.google.common.base.Charsets; |
| 19 | import com.google.common.collect.ImmutableSet; |
| 20 | import com.google.common.collect.Lists; |
| 21 | import com.google.common.collect.Maps; |
| 22 | import com.google.common.collect.Sets; |
| 23 | import com.google.common.hash.Hashing; |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 24 | import org.onosproject.cluster.PartitionId; |
| 25 | import org.onosproject.store.primitives.DistributedPrimitiveCreator; |
| 26 | import org.onosproject.store.service.AsyncAtomicCounter; |
Jordan Halterman | c955df7 | 2017-02-04 20:43:28 -0800 | [diff] [blame^] | 27 | import org.onosproject.store.service.AsyncAtomicCounterMap; |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 28 | import org.onosproject.store.service.AsyncAtomicValue; |
| 29 | import org.onosproject.store.service.AsyncConsistentMap; |
Aaron Kruglikov | 61582a0 | 2016-09-06 13:18:58 -0700 | [diff] [blame] | 30 | import org.onosproject.store.service.AsyncConsistentMultimap; |
Aaron Kruglikov | ed88ff6 | 2016-08-01 16:02:09 -0700 | [diff] [blame] | 31 | import org.onosproject.store.service.AsyncConsistentTreeMap; |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 32 | import org.onosproject.store.service.AsyncDistributedSet; |
Madan Jampani | 2914e4e | 2016-09-13 17:48:56 -0700 | [diff] [blame] | 33 | import org.onosproject.store.service.AsyncDocumentTree; |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 34 | import org.onosproject.store.service.AsyncLeaderElector; |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 35 | import org.onosproject.store.service.Serializer; |
Madan Jampani | 819d61d | 2016-07-25 20:29:43 -0700 | [diff] [blame] | 36 | import org.onosproject.store.service.WorkQueue; |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 37 | |
Jordan Halterman | c955df7 | 2017-02-04 20:43:28 -0800 | [diff] [blame^] | 38 | import java.util.List; |
| 39 | import java.util.Map; |
| 40 | import java.util.Set; |
| 41 | import java.util.TreeMap; |
| 42 | |
| 43 | import static com.google.common.base.Preconditions.checkNotNull; |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 44 | |
| 45 | /** |
| 46 | * {@code DistributedPrimitiveCreator} that federates responsibility for creating |
| 47 | * distributed primitives to a collection of other {@link DistributedPrimitiveCreator creators}. |
| 48 | */ |
| 49 | public class FederatedDistributedPrimitiveCreator implements DistributedPrimitiveCreator { |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 50 | private final TreeMap<PartitionId, DistributedPrimitiveCreator> members; |
| 51 | private final List<PartitionId> sortedMemberPartitionIds; |
| 52 | |
| 53 | public FederatedDistributedPrimitiveCreator(Map<PartitionId, DistributedPrimitiveCreator> members) { |
| 54 | this.members = Maps.newTreeMap(); |
| 55 | this.members.putAll(checkNotNull(members)); |
| 56 | this.sortedMemberPartitionIds = Lists.newArrayList(members.keySet()); |
| 57 | } |
| 58 | |
| 59 | @Override |
| 60 | public <K, V> AsyncConsistentMap<K, V> newAsyncConsistentMap(String name, Serializer serializer) { |
| 61 | checkNotNull(name); |
| 62 | checkNotNull(serializer); |
| 63 | Map<PartitionId, AsyncConsistentMap<K, V>> maps = |
| 64 | Maps.transformValues(members, |
| 65 | partition -> partition.newAsyncConsistentMap(name, serializer)); |
| 66 | Hasher<K> hasher = key -> { |
Madan Jampani | 2843ec8 | 2016-06-02 14:08:16 -0700 | [diff] [blame] | 67 | int hashCode = Hashing.sha256().hashBytes(serializer.encode(key)).asInt(); |
| 68 | return sortedMemberPartitionIds.get(Math.abs(hashCode) % members.size()); |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 69 | }; |
| 70 | return new PartitionedAsyncConsistentMap<>(name, maps, hasher); |
| 71 | } |
| 72 | |
| 73 | @Override |
Aaron Kruglikov | ed88ff6 | 2016-08-01 16:02:09 -0700 | [diff] [blame] | 74 | public <V> AsyncConsistentTreeMap<V> newAsyncConsistentTreeMap(String name, |
| 75 | Serializer serializer) { |
| 76 | return getCreator(name).newAsyncConsistentTreeMap(name, serializer); |
| 77 | } |
| 78 | |
| 79 | @Override |
Aaron Kruglikov | 61582a0 | 2016-09-06 13:18:58 -0700 | [diff] [blame] | 80 | public <K, V> AsyncConsistentMultimap<K, V> newAsyncConsistentSetMultimap( |
| 81 | String name, Serializer serializer) { |
| 82 | return getCreator(name).newAsyncConsistentSetMultimap(name, |
| 83 | serializer); |
| 84 | } |
| 85 | |
| 86 | @Override |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 87 | public <E> AsyncDistributedSet<E> newAsyncDistributedSet(String name, Serializer serializer) { |
| 88 | return DistributedPrimitives.newSetFromMap(newAsyncConsistentMap(name, serializer)); |
| 89 | } |
| 90 | |
| 91 | @Override |
Jordan Halterman | c955df7 | 2017-02-04 20:43:28 -0800 | [diff] [blame^] | 92 | public <K> AsyncAtomicCounterMap<K> newAsyncAtomicCounterMap(String name, Serializer serializer) { |
| 93 | return getCreator(name).newAsyncAtomicCounterMap(name, serializer); |
| 94 | } |
| 95 | |
| 96 | @Override |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 97 | public AsyncAtomicCounter newAsyncCounter(String name) { |
| 98 | return getCreator(name).newAsyncCounter(name); |
| 99 | } |
| 100 | |
| 101 | @Override |
| 102 | public <V> AsyncAtomicValue<V> newAsyncAtomicValue(String name, Serializer serializer) { |
| 103 | return getCreator(name).newAsyncAtomicValue(name, serializer); |
| 104 | } |
| 105 | |
| 106 | @Override |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 107 | public AsyncLeaderElector newAsyncLeaderElector(String name) { |
Madan Jampani | 27077eb | 2016-02-22 14:38:32 -0800 | [diff] [blame] | 108 | checkNotNull(name); |
| 109 | Map<PartitionId, AsyncLeaderElector> leaderElectors = |
| 110 | Maps.transformValues(members, |
| 111 | partition -> partition.newAsyncLeaderElector(name)); |
| 112 | Hasher<String> hasher = topic -> { |
Madan Jampani | 2843ec8 | 2016-06-02 14:08:16 -0700 | [diff] [blame] | 113 | int hashCode = Hashing.sha256().hashString(topic, Charsets.UTF_8).asInt(); |
| 114 | return sortedMemberPartitionIds.get(Math.abs(hashCode) % members.size()); |
Madan Jampani | 27077eb | 2016-02-22 14:38:32 -0800 | [diff] [blame] | 115 | }; |
| 116 | return new PartitionedAsyncLeaderElector(name, leaderElectors, hasher); |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 117 | } |
| 118 | |
Madan Jampani | e14a09c | 2016-02-11 10:43:21 -0800 | [diff] [blame] | 119 | @Override |
Madan Jampani | 35708a9 | 2016-07-06 10:48:19 -0700 | [diff] [blame] | 120 | public <E> WorkQueue<E> newWorkQueue(String name, Serializer serializer) { |
| 121 | return getCreator(name).newWorkQueue(name, serializer); |
| 122 | } |
| 123 | |
| 124 | @Override |
Madan Jampani | 2914e4e | 2016-09-13 17:48:56 -0700 | [diff] [blame] | 125 | public <V> AsyncDocumentTree<V> newAsyncDocumentTree(String name, Serializer serializer) { |
| 126 | return getCreator(name).newAsyncDocumentTree(name, serializer); |
| 127 | } |
| 128 | |
| 129 | @Override |
Madan Jampani | e14a09c | 2016-02-11 10:43:21 -0800 | [diff] [blame] | 130 | public Set<String> getAsyncConsistentMapNames() { |
| 131 | return members.values() |
| 132 | .stream() |
| 133 | .map(DistributedPrimitiveCreator::getAsyncConsistentMapNames) |
| 134 | .reduce(Sets::union) |
| 135 | .orElse(ImmutableSet.of()); |
| 136 | } |
| 137 | |
| 138 | @Override |
| 139 | public Set<String> getAsyncAtomicCounterNames() { |
| 140 | return members.values() |
| 141 | .stream() |
| 142 | .map(DistributedPrimitiveCreator::getAsyncAtomicCounterNames) |
| 143 | .reduce(Sets::union) |
| 144 | .orElse(ImmutableSet.of()); |
| 145 | } |
| 146 | |
Madan Jampani | 35708a9 | 2016-07-06 10:48:19 -0700 | [diff] [blame] | 147 | @Override |
| 148 | public Set<String> getWorkQueueNames() { |
| 149 | return members.values() |
| 150 | .stream() |
| 151 | .map(DistributedPrimitiveCreator::getWorkQueueNames) |
| 152 | .reduce(Sets::union) |
| 153 | .orElse(ImmutableSet.of()); |
| 154 | } |
| 155 | |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 156 | /** |
| 157 | * Returns the {@code DistributedPrimitiveCreator} to use for hosting a primitive. |
| 158 | * @param name primitive name |
| 159 | * @return primitive creator |
| 160 | */ |
| 161 | private DistributedPrimitiveCreator getCreator(String name) { |
Madan Jampani | 2843ec8 | 2016-06-02 14:08:16 -0700 | [diff] [blame] | 162 | int hashCode = Hashing.sha256().hashString(name, Charsets.UTF_8).asInt(); |
| 163 | return members.get(sortedMemberPartitionIds.get(Math.abs(hashCode) % members.size())); |
Madan Jampani | 551d0d2 | 2016-02-01 12:51:48 -0800 | [diff] [blame] | 164 | } |
| 165 | } |