Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [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 | package org.onosproject.store.consistent.impl; |
| 17 | |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 18 | import com.google.common.collect.Maps; |
| 19 | import com.google.common.collect.Sets; |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 20 | import org.onosproject.store.service.ConsistentMap; |
Madan Jampani | 50589ac | 2015-06-08 11:38:46 -0700 | [diff] [blame] | 21 | import org.onosproject.store.service.DistributedSet; |
| 22 | import org.onosproject.store.service.MapEvent; |
| 23 | import org.onosproject.store.service.MapEventListener; |
| 24 | import org.onosproject.store.service.SetEvent; |
| 25 | import org.onosproject.store.service.SetEventListener; |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 26 | |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 27 | import java.util.Collection; |
| 28 | import java.util.Iterator; |
| 29 | import java.util.Map; |
| 30 | import java.util.Set; |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 31 | |
| 32 | /** |
| 33 | * Implementation of distributed set that is backed by a ConsistentMap. |
| 34 | |
| 35 | * @param <E> set element type |
| 36 | */ |
Madan Jampani | 50589ac | 2015-06-08 11:38:46 -0700 | [diff] [blame] | 37 | public class DefaultDistributedSet<E> implements DistributedSet<E> { |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 38 | |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 39 | private static final String CONTAINS = "contains"; |
| 40 | private static final String PRIMITIVE_NAME = "distributedSet"; |
| 41 | private static final String SIZE = "size"; |
| 42 | private static final String IS_EMPTY = "isEmpty"; |
| 43 | private static final String ITERATOR = "iterator"; |
| 44 | private static final String TO_ARRAY = "toArray"; |
| 45 | private static final String ADD = "add"; |
| 46 | private static final String REMOVE = "remove"; |
| 47 | private static final String CONTAINS_ALL = "containsAll"; |
| 48 | private static final String ADD_ALL = "addAll"; |
| 49 | private static final String RETAIN_ALL = "retainAll"; |
| 50 | private static final String REMOVE_ALL = "removeAll"; |
| 51 | private static final String CLEAR = "clear"; |
| 52 | |
Madan Jampani | 50589ac | 2015-06-08 11:38:46 -0700 | [diff] [blame] | 53 | private final String name; |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 54 | private final ConsistentMap<E, Boolean> backingMap; |
Madan Jampani | 50589ac | 2015-06-08 11:38:46 -0700 | [diff] [blame] | 55 | private final Map<SetEventListener<E>, MapEventListener<E, Boolean>> listenerMapping = Maps.newIdentityHashMap(); |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 56 | private final MeteringAgent monitor; |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 57 | |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 58 | public DefaultDistributedSet(String name, boolean meteringEnabled, ConsistentMap<E, Boolean> backingMap) { |
Madan Jampani | 50589ac | 2015-06-08 11:38:46 -0700 | [diff] [blame] | 59 | this.name = name; |
| 60 | this.backingMap = backingMap; |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 61 | monitor = new MeteringAgent(PRIMITIVE_NAME, name, meteringEnabled); |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 62 | } |
| 63 | |
| 64 | @Override |
| 65 | public int size() { |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 66 | final MeteringAgent.Context timer = monitor.startTimer(SIZE); |
| 67 | try { |
| 68 | return backingMap.size(); |
| 69 | } finally { |
Flavio Castro | 6e04461 | 2015-08-13 14:13:58 -0700 | [diff] [blame] | 70 | timer.stop(null); |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 71 | } |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 72 | } |
| 73 | |
| 74 | @Override |
| 75 | public boolean isEmpty() { |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 76 | final MeteringAgent.Context timer = monitor.startTimer(IS_EMPTY); |
| 77 | try { |
| 78 | return backingMap.isEmpty(); |
| 79 | } finally { |
Flavio Castro | 6e04461 | 2015-08-13 14:13:58 -0700 | [diff] [blame] | 80 | timer.stop(null); |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 81 | } |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 82 | } |
| 83 | |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 84 | @SuppressWarnings("unchecked") |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 85 | @Override |
| 86 | public boolean contains(Object o) { |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 87 | final MeteringAgent.Context timer = monitor.startTimer(CONTAINS); |
| 88 | try { |
| 89 | return backingMap.containsKey((E) o); |
| 90 | } finally { |
Flavio Castro | 6e04461 | 2015-08-13 14:13:58 -0700 | [diff] [blame] | 91 | timer.stop(null); |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 92 | } |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 93 | } |
| 94 | |
| 95 | @Override |
| 96 | public Iterator<E> iterator() { |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 97 | final MeteringAgent.Context timer = monitor.startTimer(ITERATOR); |
| 98 | //Do we have to measure this guy? |
| 99 | try { |
| 100 | return backingMap.keySet().iterator(); |
| 101 | } finally { |
Flavio Castro | 6e04461 | 2015-08-13 14:13:58 -0700 | [diff] [blame] | 102 | timer.stop(null); |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 103 | } |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 104 | } |
| 105 | |
| 106 | @Override |
| 107 | public Object[] toArray() { |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 108 | final MeteringAgent.Context timer = monitor.startTimer(TO_ARRAY); |
| 109 | try { |
| 110 | return backingMap.keySet().stream().toArray(); |
| 111 | } finally { |
Flavio Castro | 6e04461 | 2015-08-13 14:13:58 -0700 | [diff] [blame] | 112 | timer.stop(null); |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 113 | } |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 114 | } |
| 115 | |
| 116 | @Override |
| 117 | public <T> T[] toArray(T[] a) { |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 118 | final MeteringAgent.Context timer = monitor.startTimer(TO_ARRAY); |
| 119 | try { |
| 120 | return backingMap.keySet().stream().toArray(size -> a); |
| 121 | } finally { |
Flavio Castro | 6e04461 | 2015-08-13 14:13:58 -0700 | [diff] [blame] | 122 | timer.stop(null); |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 123 | } |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 124 | } |
| 125 | |
| 126 | @Override |
| 127 | public boolean add(E e) { |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 128 | final MeteringAgent.Context timer = monitor.startTimer(ADD); |
| 129 | try { |
| 130 | return backingMap.putIfAbsent(e, true) == null; |
| 131 | } finally { |
Flavio Castro | 6e04461 | 2015-08-13 14:13:58 -0700 | [diff] [blame] | 132 | timer.stop(null); |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 133 | } |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 134 | } |
| 135 | |
Madan Jampani | bff6d8f | 2015-03-31 16:53:47 -0700 | [diff] [blame] | 136 | @SuppressWarnings("unchecked") |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 137 | @Override |
| 138 | public boolean remove(Object o) { |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 139 | final MeteringAgent.Context timer = monitor.startTimer(REMOVE); |
| 140 | try { |
| 141 | return backingMap.remove((E) o) != null; |
| 142 | } finally { |
Flavio Castro | 6e04461 | 2015-08-13 14:13:58 -0700 | [diff] [blame] | 143 | timer.stop(null); |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 144 | } |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 145 | } |
| 146 | |
| 147 | @Override |
| 148 | public boolean containsAll(Collection<?> c) { |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 149 | final MeteringAgent.Context timer = monitor.startTimer(CONTAINS_ALL); |
| 150 | try { |
| 151 | return c.stream() |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 152 | .allMatch(this::contains); |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 153 | } finally { |
Flavio Castro | 6e04461 | 2015-08-13 14:13:58 -0700 | [diff] [blame] | 154 | timer.stop(null); |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 155 | } |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 156 | } |
| 157 | |
| 158 | @Override |
| 159 | public boolean addAll(Collection<? extends E> c) { |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 160 | final MeteringAgent.Context timer = monitor.startTimer(ADD_ALL); |
| 161 | try { |
| 162 | return c.stream() |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 163 | .map(this::add) |
| 164 | .reduce(Boolean::logicalOr) |
| 165 | .orElse(false); |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 166 | } finally { |
Flavio Castro | 6e04461 | 2015-08-13 14:13:58 -0700 | [diff] [blame] | 167 | timer.stop(null); |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 168 | } |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 169 | } |
| 170 | |
| 171 | @Override |
| 172 | public boolean retainAll(Collection<?> c) { |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 173 | final MeteringAgent.Context timer = monitor.startTimer(RETAIN_ALL); |
| 174 | try { |
| 175 | Set<?> retainSet = Sets.newHashSet(c); |
| 176 | return backingMap.keySet() |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 177 | .stream() |
| 178 | .filter(k -> !retainSet.contains(k)) |
| 179 | .map(this::remove) |
| 180 | .reduce(Boolean::logicalOr) |
| 181 | .orElse(false); |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 182 | } finally { |
Flavio Castro | 6e04461 | 2015-08-13 14:13:58 -0700 | [diff] [blame] | 183 | timer.stop(null); |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 184 | } |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 185 | } |
| 186 | |
| 187 | @Override |
| 188 | public boolean removeAll(Collection<?> c) { |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 189 | final MeteringAgent.Context timer = monitor.startTimer(REMOVE_ALL); |
| 190 | try { |
| 191 | Set<?> removeSet = Sets.newHashSet(c); |
| 192 | return backingMap.keySet() |
| 193 | .stream() |
| 194 | .filter(removeSet::contains) |
| 195 | .map(this::remove) |
| 196 | .reduce(Boolean::logicalOr) |
| 197 | .orElse(false); |
| 198 | } finally { |
Flavio Castro | 6e04461 | 2015-08-13 14:13:58 -0700 | [diff] [blame] | 199 | timer.stop(null); |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 200 | } |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 201 | } |
| 202 | |
| 203 | @Override |
| 204 | public void clear() { |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 205 | final MeteringAgent.Context timer = monitor.startTimer(CLEAR); |
| 206 | try { |
| 207 | backingMap.clear(); |
| 208 | } finally { |
Flavio Castro | 6e04461 | 2015-08-13 14:13:58 -0700 | [diff] [blame] | 209 | timer.stop(null); |
Flavio Castro | 41b1f3a | 2015-07-31 13:51:32 -0700 | [diff] [blame] | 210 | } |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 211 | } |
Madan Jampani | 50589ac | 2015-06-08 11:38:46 -0700 | [diff] [blame] | 212 | |
| 213 | @Override |
| 214 | public void addListener(SetEventListener<E> listener) { |
| 215 | MapEventListener<E, Boolean> mapEventListener = mapEvent -> { |
| 216 | if (mapEvent.type() == MapEvent.Type.INSERT) { |
| 217 | listener.event(new SetEvent<>(name, SetEvent.Type.ADD, mapEvent.key())); |
| 218 | } else if (mapEvent.type() == MapEvent.Type.REMOVE) { |
| 219 | listener.event(new SetEvent<>(name, SetEvent.Type.REMOVE, mapEvent.key())); |
| 220 | } |
| 221 | }; |
| 222 | if (listenerMapping.putIfAbsent(listener, mapEventListener) == null) { |
| 223 | backingMap.addListener(mapEventListener); |
| 224 | } |
| 225 | } |
| 226 | |
| 227 | @Override |
| 228 | public void removeListener(SetEventListener<E> listener) { |
| 229 | MapEventListener<E, Boolean> mapEventListener = listenerMapping.remove(listener); |
| 230 | if (mapEventListener != null) { |
| 231 | backingMap.removeListener(mapEventListener); |
| 232 | } |
| 233 | } |
Madan Jampani | 08706ce | 2015-04-01 14:49:28 -0700 | [diff] [blame] | 234 | } |