Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 1 | /* |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 2 | * Copyright 2015-2016 Open Networking Laboratory |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [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 | */ |
Sho SHIMIZU | e18cb12 | 2016-02-22 21:04:56 -0800 | [diff] [blame] | 16 | package org.onosproject.store.resource.impl; |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 17 | |
| 18 | import com.google.common.annotations.Beta; |
Sho SHIMIZU | e7db614 | 2015-11-04 11:24:22 -0800 | [diff] [blame] | 19 | import com.google.common.collect.ImmutableList; |
Sho SHIMIZU | 83258ae | 2016-01-29 17:39:07 -0800 | [diff] [blame] | 20 | import com.google.common.collect.ImmutableSet; |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 21 | import com.google.common.collect.Maps; |
Sho SHIMIZU | 67c9010 | 2016-02-23 10:49:58 -0800 | [diff] [blame] | 22 | import com.google.common.collect.Sets; |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 23 | import org.apache.felix.scr.annotations.Activate; |
| 24 | import org.apache.felix.scr.annotations.Component; |
| 25 | import org.apache.felix.scr.annotations.Reference; |
| 26 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 27 | import org.apache.felix.scr.annotations.Service; |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 28 | import org.onlab.util.GuavaCollectors; |
Thomas Vachuska | 762a2d8 | 2016-01-04 10:25:20 -0800 | [diff] [blame] | 29 | import org.onlab.util.Tools; |
Sho SHIMIZU | e18cb12 | 2016-02-22 21:04:56 -0800 | [diff] [blame] | 30 | import org.onosproject.net.resource.ContinuousResource; |
| 31 | import org.onosproject.net.resource.ContinuousResourceId; |
| 32 | import org.onosproject.net.resource.DiscreteResource; |
| 33 | import org.onosproject.net.resource.DiscreteResourceId; |
| 34 | import org.onosproject.net.resource.ResourceAllocation; |
| 35 | import org.onosproject.net.resource.ResourceConsumer; |
| 36 | import org.onosproject.net.resource.ResourceEvent; |
| 37 | import org.onosproject.net.resource.ResourceId; |
| 38 | import org.onosproject.net.resource.Resource; |
| 39 | import org.onosproject.net.resource.ResourceStore; |
| 40 | import org.onosproject.net.resource.ResourceStoreDelegate; |
| 41 | import org.onosproject.net.resource.Resources; |
Sho SHIMIZU | fa62b47 | 2015-11-02 17:35:46 -0800 | [diff] [blame] | 42 | import org.onosproject.store.AbstractStore; |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 43 | import org.onosproject.store.serializers.KryoNamespaces; |
| 44 | import org.onosproject.store.service.ConsistentMap; |
Thomas Vachuska | 762a2d8 | 2016-01-04 10:25:20 -0800 | [diff] [blame] | 45 | import org.onosproject.store.service.ConsistentMapException; |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 46 | import org.onosproject.store.service.Serializer; |
| 47 | import org.onosproject.store.service.StorageService; |
| 48 | import org.onosproject.store.service.TransactionContext; |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 49 | import org.onosproject.store.service.TransactionalMap; |
| 50 | import org.onosproject.store.service.Versioned; |
| 51 | import org.slf4j.Logger; |
| 52 | import org.slf4j.LoggerFactory; |
| 53 | |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 54 | import java.util.Arrays; |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 55 | import java.util.Collection; |
Sho SHIMIZU | 69420fe | 2016-02-09 15:01:07 -0800 | [diff] [blame] | 56 | import java.util.LinkedHashMap; |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 57 | import java.util.LinkedHashSet; |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 58 | import java.util.List; |
| 59 | import java.util.Map; |
| 60 | import java.util.Optional; |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 61 | import java.util.Set; |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 62 | import java.util.stream.Collectors; |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 63 | import java.util.stream.Stream; |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 64 | |
| 65 | import static com.google.common.base.Preconditions.checkArgument; |
| 66 | import static com.google.common.base.Preconditions.checkNotNull; |
Sho SHIMIZU | e18cb12 | 2016-02-22 21:04:56 -0800 | [diff] [blame] | 67 | import static org.onosproject.net.resource.ResourceEvent.Type.*; |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 68 | |
| 69 | /** |
| 70 | * Implementation of ResourceStore using TransactionalMap. |
| 71 | */ |
Sho SHIMIZU | 9a2b829 | 2015-10-28 13:00:16 -0700 | [diff] [blame] | 72 | @Component(immediate = true) |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 73 | @Service |
| 74 | @Beta |
Sho SHIMIZU | fa62b47 | 2015-11-02 17:35:46 -0800 | [diff] [blame] | 75 | public class ConsistentResourceStore extends AbstractStore<ResourceEvent, ResourceStoreDelegate> |
| 76 | implements ResourceStore { |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 77 | private static final Logger log = LoggerFactory.getLogger(ConsistentResourceStore.class); |
| 78 | |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 79 | private static final String DISCRETE_CONSUMER_MAP = "onos-discrete-consumers"; |
| 80 | private static final String CONTINUOUS_CONSUMER_MAP = "onos-continuous-consumers"; |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 81 | private static final String CHILD_MAP = "onos-resource-children"; |
| 82 | private static final Serializer SERIALIZER = Serializer.using( |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 83 | Arrays.asList(KryoNamespaces.BASIC, KryoNamespaces.API), |
| 84 | ContinuousResourceAllocation.class); |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 85 | |
Thomas Vachuska | 762a2d8 | 2016-01-04 10:25:20 -0800 | [diff] [blame] | 86 | // TODO: We should provide centralized values for this |
| 87 | private static final int MAX_RETRIES = 5; |
| 88 | private static final int RETRY_DELAY = 1_000; // millis |
| 89 | |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 90 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 91 | protected StorageService service; |
| 92 | |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 93 | private ConsistentMap<DiscreteResourceId, ResourceConsumer> discreteConsumers; |
| 94 | private ConsistentMap<ContinuousResourceId, ContinuousResourceAllocation> continuousConsumers; |
| 95 | private ConsistentMap<DiscreteResourceId, Set<Resource>> childMap; |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 96 | |
| 97 | @Activate |
| 98 | public void activate() { |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 99 | discreteConsumers = service.<DiscreteResourceId, ResourceConsumer>consistentMapBuilder() |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 100 | .withName(DISCRETE_CONSUMER_MAP) |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 101 | .withSerializer(SERIALIZER) |
| 102 | .build(); |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 103 | continuousConsumers = service.<ContinuousResourceId, ContinuousResourceAllocation>consistentMapBuilder() |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 104 | .withName(CONTINUOUS_CONSUMER_MAP) |
| 105 | .withSerializer(SERIALIZER) |
| 106 | .build(); |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 107 | childMap = service.<DiscreteResourceId, Set<Resource>>consistentMapBuilder() |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 108 | .withName(CHILD_MAP) |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 109 | .withSerializer(SERIALIZER) |
| 110 | .build(); |
Sho SHIMIZU | e7db614 | 2015-11-04 11:24:22 -0800 | [diff] [blame] | 111 | |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 112 | Tools.retryable(() -> childMap.put(Resource.ROOT.id(), new LinkedHashSet<>()), |
Thomas Vachuska | 762a2d8 | 2016-01-04 10:25:20 -0800 | [diff] [blame] | 113 | ConsistentMapException.class, MAX_RETRIES, RETRY_DELAY); |
Madan Jampani | c7f49f9 | 2015-12-10 11:35:06 -0800 | [diff] [blame] | 114 | log.info("Started"); |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 115 | } |
| 116 | |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 117 | // Computational complexity: O(1) if the resource is discrete type. |
| 118 | // O(n) if the resource is continuous type where n is the number of the existing allocations for the resource |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 119 | @Override |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 120 | public List<ResourceAllocation> getResourceAllocations(ResourceId id) { |
| 121 | checkNotNull(id); |
| 122 | checkArgument(id instanceof DiscreteResourceId || id instanceof ContinuousResourceId); |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 123 | |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 124 | if (id instanceof DiscreteResourceId) { |
| 125 | return getResourceAllocations((DiscreteResourceId) id); |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 126 | } else { |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 127 | return getResourceAllocations((ContinuousResourceId) id); |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 128 | } |
| 129 | } |
| 130 | |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 131 | // computational complexity: O(1) |
| 132 | private List<ResourceAllocation> getResourceAllocations(DiscreteResourceId resource) { |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 133 | Versioned<ResourceConsumer> consumer = discreteConsumers.get(resource); |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 134 | if (consumer == null) { |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 135 | return ImmutableList.of(); |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 136 | } |
| 137 | |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 138 | return ImmutableList.of(new ResourceAllocation(Resources.discrete(resource).resource(), consumer.value())); |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 139 | } |
| 140 | |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 141 | // computational complexity: O(n) where n is the number of the existing allocations for the resource |
| 142 | private List<ResourceAllocation> getResourceAllocations(ContinuousResourceId resource) { |
| 143 | Versioned<ContinuousResourceAllocation> allocations = continuousConsumers.get(resource); |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 144 | if (allocations == null) { |
| 145 | return ImmutableList.of(); |
| 146 | } |
| 147 | |
| 148 | return allocations.value().allocations().stream() |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 149 | .filter(x -> x.resource().id().equals(resource)) |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 150 | .collect(GuavaCollectors.toImmutableList()); |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 151 | } |
| 152 | |
| 153 | @Override |
Jonathan Hart | 5615126 | 2016-02-11 09:48:50 -0800 | [diff] [blame] | 154 | public boolean register(List<Resource> resources) { |
Sho SHIMIZU | 83e17a0 | 2015-08-20 14:07:05 -0700 | [diff] [blame] | 155 | checkNotNull(resources); |
HIGUCHI Yuta | 6f828c3 | 2016-01-20 18:11:05 -0800 | [diff] [blame] | 156 | if (log.isTraceEnabled()) { |
| 157 | resources.forEach(r -> log.trace("registering {}", r)); |
| 158 | } |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 159 | |
| 160 | TransactionContext tx = service.transactionContextBuilder().build(); |
| 161 | tx.begin(); |
| 162 | |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 163 | TransactionalMap<DiscreteResourceId, Set<Resource>> childTxMap = |
Sho SHIMIZU | 1e0a34c | 2015-11-02 16:52:29 -0800 | [diff] [blame] | 164 | tx.getTransactionalMap(CHILD_MAP, SERIALIZER); |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 165 | |
Sho SHIMIZU | 69420fe | 2016-02-09 15:01:07 -0800 | [diff] [blame] | 166 | // the order is preserved by LinkedHashMap |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 167 | Map<DiscreteResource, List<Resource>> resourceMap = resources.stream() |
Sho SHIMIZU | 1e0a34c | 2015-11-02 16:52:29 -0800 | [diff] [blame] | 168 | .filter(x -> x.parent().isPresent()) |
Sho SHIMIZU | 69420fe | 2016-02-09 15:01:07 -0800 | [diff] [blame] | 169 | .collect(Collectors.groupingBy(x -> x.parent().get(), LinkedHashMap::new, Collectors.toList())); |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 170 | |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 171 | for (Map.Entry<DiscreteResource, List<Resource>> entry: resourceMap.entrySet()) { |
Sho SHIMIZU | 72f81b1 | 2016-02-09 09:26:17 -0800 | [diff] [blame] | 172 | if (!lookup(childTxMap, entry.getKey().id()).isPresent()) { |
Sho SHIMIZU | 1e0a34c | 2015-11-02 16:52:29 -0800 | [diff] [blame] | 173 | return abortTransaction(tx); |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 174 | } |
| 175 | |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 176 | if (!appendValues(childTxMap, entry.getKey().id(), entry.getValue())) { |
Sho SHIMIZU | 1e0a34c | 2015-11-02 16:52:29 -0800 | [diff] [blame] | 177 | return abortTransaction(tx); |
| 178 | } |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 179 | } |
Sho SHIMIZU | 1e0a34c | 2015-11-02 16:52:29 -0800 | [diff] [blame] | 180 | |
Sho SHIMIZU | fa62b47 | 2015-11-02 17:35:46 -0800 | [diff] [blame] | 181 | boolean success = tx.commit(); |
| 182 | if (success) { |
Sho SHIMIZU | 25938a5 | 2016-02-24 11:25:07 -0800 | [diff] [blame] | 183 | log.trace("Transaction commit succeeded on registration: resources={}", resources); |
Sho SHIMIZU | fa62b47 | 2015-11-02 17:35:46 -0800 | [diff] [blame] | 184 | List<ResourceEvent> events = resources.stream() |
| 185 | .filter(x -> x.parent().isPresent()) |
| 186 | .map(x -> new ResourceEvent(RESOURCE_ADDED, x)) |
| 187 | .collect(Collectors.toList()); |
| 188 | notifyDelegate(events); |
Sho SHIMIZU | 25938a5 | 2016-02-24 11:25:07 -0800 | [diff] [blame] | 189 | } else { |
| 190 | log.debug("Transaction commit failed on registration: resources={}", resources); |
Sho SHIMIZU | fa62b47 | 2015-11-02 17:35:46 -0800 | [diff] [blame] | 191 | } |
| 192 | return success; |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 193 | } |
| 194 | |
| 195 | @Override |
Jonathan Hart | 5615126 | 2016-02-11 09:48:50 -0800 | [diff] [blame] | 196 | public boolean unregister(List<ResourceId> ids) { |
Sho SHIMIZU | 72f81b1 | 2016-02-09 09:26:17 -0800 | [diff] [blame] | 197 | checkNotNull(ids); |
Sho SHIMIZU | 2d8a13a | 2015-08-18 22:37:41 -0700 | [diff] [blame] | 198 | |
| 199 | TransactionContext tx = service.transactionContextBuilder().build(); |
| 200 | tx.begin(); |
| 201 | |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 202 | TransactionalMap<DiscreteResourceId, Set<Resource>> childTxMap = |
Sho SHIMIZU | 1e0a34c | 2015-11-02 16:52:29 -0800 | [diff] [blame] | 203 | tx.getTransactionalMap(CHILD_MAP, SERIALIZER); |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 204 | TransactionalMap<DiscreteResourceId, ResourceConsumer> discreteConsumerTxMap = |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 205 | tx.getTransactionalMap(DISCRETE_CONSUMER_MAP, SERIALIZER); |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 206 | TransactionalMap<ContinuousResourceId, ContinuousResourceAllocation> continuousConsumerTxMap = |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 207 | tx.getTransactionalMap(CONTINUOUS_CONSUMER_MAP, SERIALIZER); |
Sho SHIMIZU | 2d8a13a | 2015-08-18 22:37:41 -0700 | [diff] [blame] | 208 | |
Sho SHIMIZU | 7d54d9c | 2016-02-17 13:58:46 -0800 | [diff] [blame] | 209 | // Look up resources by resource IDs |
Sho SHIMIZU | 72f81b1 | 2016-02-09 09:26:17 -0800 | [diff] [blame] | 210 | List<Resource> resources = ids.stream() |
Sho SHIMIZU | 1e0a34c | 2015-11-02 16:52:29 -0800 | [diff] [blame] | 211 | .filter(x -> x.parent().isPresent()) |
Sho SHIMIZU | 7d54d9c | 2016-02-17 13:58:46 -0800 | [diff] [blame] | 212 | .map(x -> { |
| 213 | // avoid access to consistent map in the case of discrete resource |
| 214 | if (x instanceof DiscreteResourceId) { |
| 215 | return Optional.of(Resources.discrete((DiscreteResourceId) x).resource()); |
| 216 | } else { |
| 217 | return lookup(childTxMap, x); |
| 218 | } |
| 219 | }) |
HIGUCHI Yuta | 315179a | 2016-02-18 14:01:22 -0800 | [diff] [blame] | 220 | .filter(Optional::isPresent) |
| 221 | .map(Optional::get) |
Sho SHIMIZU | 72f81b1 | 2016-02-09 09:26:17 -0800 | [diff] [blame] | 222 | .collect(Collectors.toList()); |
Sho SHIMIZU | 69420fe | 2016-02-09 15:01:07 -0800 | [diff] [blame] | 223 | // the order is preserved by LinkedHashMap |
Sho SHIMIZU | 72f81b1 | 2016-02-09 09:26:17 -0800 | [diff] [blame] | 224 | Map<DiscreteResourceId, List<Resource>> resourceMap = resources.stream() |
Sho SHIMIZU | 69420fe | 2016-02-09 15:01:07 -0800 | [diff] [blame] | 225 | .collect(Collectors.groupingBy(x -> x.parent().get().id(), LinkedHashMap::new, Collectors.toList())); |
Sho SHIMIZU | 83e17a0 | 2015-08-20 14:07:05 -0700 | [diff] [blame] | 226 | |
Sho SHIMIZU | 1e0a34c | 2015-11-02 16:52:29 -0800 | [diff] [blame] | 227 | // even if one of the resources is allocated to a consumer, |
| 228 | // all unregistrations are regarded as failure |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 229 | for (Map.Entry<DiscreteResourceId, List<Resource>> entry: resourceMap.entrySet()) { |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 230 | boolean allocated = entry.getValue().stream().anyMatch(x -> { |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 231 | if (x instanceof DiscreteResource) { |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 232 | return discreteConsumerTxMap.get(((DiscreteResource) x).id()) != null; |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 233 | } else if (x instanceof ContinuousResource) { |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 234 | ContinuousResourceAllocation allocations = |
| 235 | continuousConsumerTxMap.get(((ContinuousResource) x).id()); |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 236 | return allocations != null && !allocations.allocations().isEmpty(); |
| 237 | } else { |
| 238 | return false; |
| 239 | } |
| 240 | }); |
| 241 | if (allocated) { |
HIGUCHI Yuta | 5b6dfba | 2016-01-27 14:43:41 -0800 | [diff] [blame] | 242 | log.warn("Failed to unregister {}: allocation exists", entry.getKey()); |
Sho SHIMIZU | 1e0a34c | 2015-11-02 16:52:29 -0800 | [diff] [blame] | 243 | return abortTransaction(tx); |
Sho SHIMIZU | 2d8a13a | 2015-08-18 22:37:41 -0700 | [diff] [blame] | 244 | } |
| 245 | |
Sho SHIMIZU | 1e0a34c | 2015-11-02 16:52:29 -0800 | [diff] [blame] | 246 | if (!removeValues(childTxMap, entry.getKey(), entry.getValue())) { |
HIGUCHI Yuta | 6acdfd0 | 2016-02-18 10:39:43 -0800 | [diff] [blame] | 247 | log.warn("Failed to unregister {}: Failed to remove {} values.", |
| 248 | entry.getKey(), entry.getValue().size()); |
| 249 | log.debug("Failed to unregister {}: Failed to remove values: {}", |
HIGUCHI Yuta | 5b6dfba | 2016-01-27 14:43:41 -0800 | [diff] [blame] | 250 | entry.getKey(), entry.getValue()); |
Sho SHIMIZU | 1e0a34c | 2015-11-02 16:52:29 -0800 | [diff] [blame] | 251 | return abortTransaction(tx); |
| 252 | } |
Sho SHIMIZU | 2d8a13a | 2015-08-18 22:37:41 -0700 | [diff] [blame] | 253 | } |
Sho SHIMIZU | 1e0a34c | 2015-11-02 16:52:29 -0800 | [diff] [blame] | 254 | |
Sho SHIMIZU | fa62b47 | 2015-11-02 17:35:46 -0800 | [diff] [blame] | 255 | boolean success = tx.commit(); |
| 256 | if (success) { |
| 257 | List<ResourceEvent> events = resources.stream() |
| 258 | .filter(x -> x.parent().isPresent()) |
| 259 | .map(x -> new ResourceEvent(RESOURCE_REMOVED, x)) |
| 260 | .collect(Collectors.toList()); |
| 261 | notifyDelegate(events); |
HIGUCHI Yuta | 5b6dfba | 2016-01-27 14:43:41 -0800 | [diff] [blame] | 262 | } else { |
Sho SHIMIZU | 72f81b1 | 2016-02-09 09:26:17 -0800 | [diff] [blame] | 263 | log.warn("Failed to unregister {}: Commit failed.", ids); |
Sho SHIMIZU | fa62b47 | 2015-11-02 17:35:46 -0800 | [diff] [blame] | 264 | } |
| 265 | return success; |
Sho SHIMIZU | 2d8a13a | 2015-08-18 22:37:41 -0700 | [diff] [blame] | 266 | } |
| 267 | |
| 268 | @Override |
Jonathan Hart | 5615126 | 2016-02-11 09:48:50 -0800 | [diff] [blame] | 269 | public boolean allocate(List<Resource> resources, ResourceConsumer consumer) { |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 270 | checkNotNull(resources); |
| 271 | checkNotNull(consumer); |
| 272 | |
| 273 | TransactionContext tx = service.transactionContextBuilder().build(); |
| 274 | tx.begin(); |
| 275 | |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 276 | TransactionalMap<DiscreteResourceId, Set<Resource>> childTxMap = |
Sho SHIMIZU | 1e0a34c | 2015-11-02 16:52:29 -0800 | [diff] [blame] | 277 | tx.getTransactionalMap(CHILD_MAP, SERIALIZER); |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 278 | TransactionalMap<DiscreteResourceId, ResourceConsumer> discreteConsumerTxMap = |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 279 | tx.getTransactionalMap(DISCRETE_CONSUMER_MAP, SERIALIZER); |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 280 | TransactionalMap<ContinuousResourceId, ContinuousResourceAllocation> continuousConsumerTxMap = |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 281 | tx.getTransactionalMap(CONTINUOUS_CONSUMER_MAP, SERIALIZER); |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 282 | |
Sho SHIMIZU | 8fa670a | 2016-01-14 11:17:18 -0800 | [diff] [blame] | 283 | for (Resource resource: resources) { |
Sho SHIMIZU | 171a938 | 2016-02-15 13:56:34 -0800 | [diff] [blame] | 284 | // if the resource is not registered, then abort |
| 285 | Optional<Resource> lookedUp = lookup(childTxMap, resource.id()); |
| 286 | if (!lookedUp.isPresent()) { |
| 287 | return abortTransaction(tx); |
| 288 | } |
Sho SHIMIZU | d29847f | 2015-08-13 09:10:59 -0700 | [diff] [blame] | 289 | |
Sho SHIMIZU | 171a938 | 2016-02-15 13:56:34 -0800 | [diff] [blame] | 290 | if (resource instanceof DiscreteResource) { |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 291 | ResourceConsumer oldValue = discreteConsumerTxMap.put(((DiscreteResource) resource).id(), consumer); |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 292 | if (oldValue != null) { |
| 293 | return abortTransaction(tx); |
| 294 | } |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 295 | } else if (resource instanceof ContinuousResource) { |
Sho SHIMIZU | 72f81b1 | 2016-02-09 09:26:17 -0800 | [diff] [blame] | 296 | // Down cast: this must be safe as ContinuousResource is associated with ContinuousResourceId |
| 297 | ContinuousResource continuous = (ContinuousResource) lookedUp.get(); |
| 298 | ContinuousResourceAllocation allocations = continuousConsumerTxMap.get(continuous.id()); |
| 299 | if (!hasEnoughResource(continuous, (ContinuousResource) resource, allocations)) { |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 300 | return abortTransaction(tx); |
| 301 | } |
| 302 | |
| 303 | boolean success = appendValue(continuousConsumerTxMap, |
Naoki Shiota | 3bac1c3 | 2016-03-31 17:46:45 -0700 | [diff] [blame^] | 304 | continuous, new ResourceAllocation(resource, consumer)); |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 305 | if (!success) { |
| 306 | return abortTransaction(tx); |
| 307 | } |
Sho SHIMIZU | 1e0a34c | 2015-11-02 16:52:29 -0800 | [diff] [blame] | 308 | } |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 309 | } |
Sho SHIMIZU | 1e0a34c | 2015-11-02 16:52:29 -0800 | [diff] [blame] | 310 | |
| 311 | return tx.commit(); |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 312 | } |
| 313 | |
| 314 | @Override |
Sho SHIMIZU | fc64ffe | 2016-02-10 20:11:09 -0800 | [diff] [blame] | 315 | public boolean release(List<ResourceAllocation> allocations) { |
| 316 | checkNotNull(allocations); |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 317 | |
| 318 | TransactionContext tx = service.transactionContextBuilder().build(); |
| 319 | tx.begin(); |
| 320 | |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 321 | TransactionalMap<DiscreteResourceId, ResourceConsumer> discreteConsumerTxMap = |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 322 | tx.getTransactionalMap(DISCRETE_CONSUMER_MAP, SERIALIZER); |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 323 | TransactionalMap<ContinuousResourceId, ContinuousResourceAllocation> continuousConsumerTxMap = |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 324 | tx.getTransactionalMap(CONTINUOUS_CONSUMER_MAP, SERIALIZER); |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 325 | |
Sho SHIMIZU | fc64ffe | 2016-02-10 20:11:09 -0800 | [diff] [blame] | 326 | for (ResourceAllocation allocation : allocations) { |
| 327 | Resource resource = allocation.resource(); |
| 328 | ResourceConsumer consumer = allocation.consumer(); |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 329 | |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 330 | if (resource instanceof DiscreteResource) { |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 331 | // if this single release fails (because the resource is allocated to another consumer, |
| 332 | // the whole release fails |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 333 | if (!discreteConsumerTxMap.remove(((DiscreteResource) resource).id(), consumer)) { |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 334 | return abortTransaction(tx); |
| 335 | } |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 336 | } else if (resource instanceof ContinuousResource) { |
| 337 | ContinuousResource continuous = (ContinuousResource) resource; |
Sho SHIMIZU | fc64ffe | 2016-02-10 20:11:09 -0800 | [diff] [blame] | 338 | ContinuousResourceAllocation continuousAllocation = continuousConsumerTxMap.get(continuous.id()); |
| 339 | ImmutableList<ResourceAllocation> newAllocations = continuousAllocation.allocations().stream() |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 340 | .filter(x -> !(x.consumer().equals(consumer) && |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 341 | ((ContinuousResource) x.resource()).value() == continuous.value())) |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 342 | .collect(GuavaCollectors.toImmutableList()); |
| 343 | |
Sho SHIMIZU | fc64ffe | 2016-02-10 20:11:09 -0800 | [diff] [blame] | 344 | if (!continuousConsumerTxMap.replace(continuous.id(), continuousAllocation, |
| 345 | new ContinuousResourceAllocation(continuousAllocation.original(), newAllocations))) { |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 346 | return abortTransaction(tx); |
| 347 | } |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 348 | } |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 349 | } |
Sho SHIMIZU | 1e0a34c | 2015-11-02 16:52:29 -0800 | [diff] [blame] | 350 | |
| 351 | return tx.commit(); |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 352 | } |
| 353 | |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 354 | // computational complexity: O(1) if the resource is discrete type. |
| 355 | // O(n) if the resource is continuous type where n is the number of the children of |
| 356 | // the specified resource's parent |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 357 | @Override |
Sho SHIMIZU | 8fa670a | 2016-01-14 11:17:18 -0800 | [diff] [blame] | 358 | public boolean isAvailable(Resource resource) { |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 359 | checkNotNull(resource); |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 360 | checkArgument(resource instanceof DiscreteResource || resource instanceof ContinuousResource); |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 361 | |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 362 | if (resource instanceof DiscreteResource) { |
HIGUCHI Yuta | 6f828c3 | 2016-01-20 18:11:05 -0800 | [diff] [blame] | 363 | // check if already consumed |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 364 | return getResourceAllocations(resource.id()).isEmpty(); |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 365 | } else { |
Sho SHIMIZU | f17ae28 | 2016-02-10 23:44:30 -0800 | [diff] [blame] | 366 | return isAvailable((ContinuousResource) resource); |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 367 | } |
| 368 | } |
| 369 | |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 370 | // computational complexity: O(n) where n is the number of existing allocations for the resource |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 371 | private boolean isAvailable(ContinuousResource resource) { |
Sho SHIMIZU | f17ae28 | 2016-02-10 23:44:30 -0800 | [diff] [blame] | 372 | // check if it's registered or not. |
| 373 | Versioned<Set<Resource>> children = childMap.get(resource.parent().get().id()); |
| 374 | if (children == null) { |
| 375 | return false; |
| 376 | } |
| 377 | |
| 378 | ContinuousResource registered = children.value().stream() |
| 379 | .filter(c -> c.id().equals(resource.id())) |
| 380 | .findFirst() |
| 381 | .map(c -> (ContinuousResource) c) |
| 382 | .get(); |
| 383 | if (registered.value() < resource.value()) { |
| 384 | // Capacity < requested, can never satisfy |
| 385 | return false; |
| 386 | } |
| 387 | |
| 388 | // check if there's enough left |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 389 | Versioned<ContinuousResourceAllocation> allocation = continuousConsumers.get(resource.id()); |
| 390 | if (allocation == null) { |
HIGUCHI Yuta | 6f828c3 | 2016-01-20 18:11:05 -0800 | [diff] [blame] | 391 | // no allocation (=no consumer) full registered resources available |
| 392 | return true; |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 393 | } |
| 394 | |
| 395 | return hasEnoughResource(allocation.value().original(), resource, allocation.value()); |
| 396 | } |
| 397 | |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 398 | // computational complexity: O(n + m) where n is the number of entries in discreteConsumers |
| 399 | // and m is the number of allocations for all continuous resources |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 400 | @Override |
Sho SHIMIZU | 8fa670a | 2016-01-14 11:17:18 -0800 | [diff] [blame] | 401 | public Collection<Resource> getResources(ResourceConsumer consumer) { |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 402 | checkNotNull(consumer); |
| 403 | |
| 404 | // NOTE: getting all entries may become performance bottleneck |
| 405 | // TODO: revisit for better backend data structure |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 406 | Stream<DiscreteResource> discreteStream = discreteConsumers.entrySet().stream() |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 407 | .filter(x -> x.getValue().value().equals(consumer)) |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 408 | .map(Map.Entry::getKey) |
| 409 | .map(x -> Resources.discrete(x).resource()); |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 410 | |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 411 | Stream<ContinuousResource> continuousStream = continuousConsumers.values().stream() |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 412 | .flatMap(x -> x.value().allocations().stream() |
| 413 | .map(y -> Maps.immutableEntry(x.value().original(), y))) |
| 414 | .filter(x -> x.getValue().consumer().equals(consumer)) |
| 415 | .map(x -> x.getKey()); |
| 416 | |
| 417 | return Stream.concat(discreteStream, continuousStream).collect(Collectors.toList()); |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 418 | } |
| 419 | |
Sho SHIMIZU | 82bfe99 | 2016-02-10 09:55:32 -0800 | [diff] [blame] | 420 | // computational complexity: O(1) |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 421 | @Override |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 422 | public Set<Resource> getChildResources(DiscreteResourceId parent) { |
Sho SHIMIZU | e7f4f3f | 2015-10-13 16:27:25 -0700 | [diff] [blame] | 423 | checkNotNull(parent); |
| 424 | |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 425 | Versioned<Set<Resource>> children = childMap.get(parent); |
Sho SHIMIZU | e7f4f3f | 2015-10-13 16:27:25 -0700 | [diff] [blame] | 426 | if (children == null) { |
Sho SHIMIZU | 83258ae | 2016-01-29 17:39:07 -0800 | [diff] [blame] | 427 | return ImmutableSet.of(); |
Sho SHIMIZU | e7f4f3f | 2015-10-13 16:27:25 -0700 | [diff] [blame] | 428 | } |
| 429 | |
| 430 | return children.value(); |
| 431 | } |
| 432 | |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 433 | // computational complexity: O(n) where n is the number of the children of the parent |
Sho SHIMIZU | e7f4f3f | 2015-10-13 16:27:25 -0700 | [diff] [blame] | 434 | @Override |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 435 | public <T> Collection<Resource> getAllocatedResources(DiscreteResourceId parent, Class<T> cls) { |
Sho SHIMIZU | 1f5e591 | 2015-08-10 17:00:00 -0700 | [diff] [blame] | 436 | checkNotNull(parent); |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 437 | checkNotNull(cls); |
| 438 | |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 439 | Versioned<Set<Resource>> children = childMap.get(parent); |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 440 | if (children == null) { |
Sho SHIMIZU | 2c0ae12 | 2016-01-20 13:14:38 -0800 | [diff] [blame] | 441 | return ImmutableList.of(); |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 442 | } |
| 443 | |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 444 | Stream<DiscreteResource> discrete = children.value().stream() |
Sho SHIMIZU | 003ed32 | 2016-02-11 12:58:42 -0800 | [diff] [blame] | 445 | .filter(x -> x.isTypeOf(cls)) |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 446 | .filter(x -> x instanceof DiscreteResource) |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 447 | .map(x -> ((DiscreteResource) x)) |
| 448 | .filter(x -> discreteConsumers.containsKey(x.id())); |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 449 | |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 450 | Stream<ContinuousResource> continuous = children.value().stream() |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 451 | .filter(x -> x.id().equals(parent.child(cls))) |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 452 | .filter(x -> x instanceof ContinuousResource) |
| 453 | .map(x -> (ContinuousResource) x) |
Sho SHIMIZU | 9003924 | 2016-02-11 09:45:32 -0800 | [diff] [blame] | 454 | // we don't use cascading simple predicates like follows to reduce accesses to consistent map |
| 455 | // .filter(x -> continuousConsumers.containsKey(x.id())) |
| 456 | // .filter(x -> continuousConsumers.get(x.id()) != null) |
| 457 | // .filter(x -> !continuousConsumers.get(x.id()).value().allocations().isEmpty()); |
| 458 | .filter(resource -> { |
| 459 | Versioned<ContinuousResourceAllocation> allocation = continuousConsumers.get(resource.id()); |
| 460 | if (allocation == null) { |
| 461 | return false; |
| 462 | } |
| 463 | return !allocation.value().allocations().isEmpty(); |
| 464 | }); |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 465 | |
| 466 | return Stream.concat(discrete, continuous).collect(Collectors.toList()); |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 467 | } |
Sho SHIMIZU | d29847f | 2015-08-13 09:10:59 -0700 | [diff] [blame] | 468 | |
| 469 | /** |
| 470 | * Abort the transaction. |
| 471 | * |
| 472 | * @param tx transaction context |
| 473 | * @return always false |
| 474 | */ |
| 475 | private boolean abortTransaction(TransactionContext tx) { |
| 476 | tx.abort(); |
| 477 | return false; |
| 478 | } |
| 479 | |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 480 | // Appends the specified ResourceAllocation to the existing values stored in the map |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 481 | // computational complexity: O(n) where n is the number of the elements in the associated allocation |
| 482 | private boolean appendValue(TransactionalMap<ContinuousResourceId, ContinuousResourceAllocation> map, |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 483 | ContinuousResource original, ResourceAllocation value) { |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 484 | ContinuousResourceAllocation oldValue = map.putIfAbsent(original.id(), |
| 485 | new ContinuousResourceAllocation(original, ImmutableList.of(value))); |
| 486 | if (oldValue == null) { |
| 487 | return true; |
| 488 | } |
| 489 | |
| 490 | if (oldValue.allocations().contains(value)) { |
| 491 | // don't write to map because all values are already stored |
| 492 | return true; |
| 493 | } |
| 494 | |
| 495 | ContinuousResourceAllocation newValue = new ContinuousResourceAllocation(original, |
| 496 | ImmutableList.<ResourceAllocation>builder() |
| 497 | .addAll(oldValue.allocations()) |
| 498 | .add(value) |
| 499 | .build()); |
| 500 | return map.replace(original.id(), oldValue, newValue); |
| 501 | } |
Sho SHIMIZU | d29847f | 2015-08-13 09:10:59 -0700 | [diff] [blame] | 502 | /** |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 503 | * Appends the values to the existing values associated with the specified key. |
Sho SHIMIZU | 4568c41 | 2015-08-21 16:39:07 -0700 | [diff] [blame] | 504 | * If the map already has all the given values, appending will not happen. |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 505 | * |
| 506 | * @param map map holding multiple values for a key |
| 507 | * @param key key specifying values |
| 508 | * @param values values to be appended |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 509 | * @return true if the operation succeeds, false otherwise. |
| 510 | */ |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 511 | // computational complexity: O(n) where n is the number of the specified value |
| 512 | private boolean appendValues(TransactionalMap<DiscreteResourceId, Set<Resource>> map, |
| 513 | DiscreteResourceId key, List<Resource> values) { |
Sho SHIMIZU | 67c9010 | 2016-02-23 10:49:58 -0800 | [diff] [blame] | 514 | Set<Resource> requested = new LinkedHashSet<>(values); |
| 515 | Set<Resource> oldValues = map.putIfAbsent(key, requested); |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 516 | if (oldValues == null) { |
Sho SHIMIZU | 93a74b3 | 2015-11-09 11:48:23 -0800 | [diff] [blame] | 517 | return true; |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 518 | } |
| 519 | |
Sho SHIMIZU | 67c9010 | 2016-02-23 10:49:58 -0800 | [diff] [blame] | 520 | Set<Resource> addedValues = Sets.difference(requested, oldValues); |
| 521 | // no new value, then no-op |
Sho SHIMIZU | 1992daf | 2016-02-17 17:38:55 -0800 | [diff] [blame] | 522 | if (addedValues.isEmpty()) { |
Sho SHIMIZU | 4568c41 | 2015-08-21 16:39:07 -0700 | [diff] [blame] | 523 | // don't write to map because all values are already stored |
| 524 | return true; |
| 525 | } |
| 526 | |
Sho SHIMIZU | 67c9010 | 2016-02-23 10:49:58 -0800 | [diff] [blame] | 527 | Set<ResourceId> addedIds = addedValues.stream() |
| 528 | .map(Resource::id) |
| 529 | .collect(Collectors.toSet()); |
| 530 | // if the value is not found but the same ID is found |
| 531 | // (this happens only when being continuous resource) |
| 532 | if (oldValues.stream().anyMatch(x -> addedIds.contains(x.id()))) { |
| 533 | // no-op, but indicating failure (reject the request) |
| 534 | return false; |
| 535 | } |
| 536 | Set<Resource> newValues = new LinkedHashSet<>(oldValues); |
Sho SHIMIZU | 1992daf | 2016-02-17 17:38:55 -0800 | [diff] [blame] | 537 | newValues.addAll(addedValues); |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 538 | return map.replace(key, oldValues, newValues); |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 539 | } |
| 540 | |
| 541 | /** |
Sho SHIMIZU | ba1f83b | 2015-10-14 08:11:20 -0700 | [diff] [blame] | 542 | * Removes the values from the existing values associated with the specified key. |
Sho SHIMIZU | 5618ee5 | 2015-08-21 17:19:44 -0700 | [diff] [blame] | 543 | * If the map doesn't contain the given values, removal will not happen. |
Sho SHIMIZU | 2d8a13a | 2015-08-18 22:37:41 -0700 | [diff] [blame] | 544 | * |
| 545 | * @param map map holding multiple values for a key |
| 546 | * @param key key specifying values |
| 547 | * @param values values to be removed |
Sho SHIMIZU | 2d8a13a | 2015-08-18 22:37:41 -0700 | [diff] [blame] | 548 | * @return true if the operation succeeds, false otherwise |
| 549 | */ |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 550 | // computational complexity: O(n) where n is the number of the specified values |
| 551 | private boolean removeValues(TransactionalMap<DiscreteResourceId, Set<Resource>> map, |
| 552 | DiscreteResourceId key, List<Resource> values) { |
Sho SHIMIZU | 07b7bc9 | 2016-01-29 18:27:58 -0800 | [diff] [blame] | 553 | Set<Resource> oldValues = map.putIfAbsent(key, new LinkedHashSet<>()); |
Sho SHIMIZU | 2d8a13a | 2015-08-18 22:37:41 -0700 | [diff] [blame] | 554 | if (oldValues == null) { |
HIGUCHI Yuta | dc4394c | 2016-01-29 15:35:10 -0800 | [diff] [blame] | 555 | log.trace("No-Op removing values. key {} did not exist", key); |
Sho SHIMIZU | 93a74b3 | 2015-11-09 11:48:23 -0800 | [diff] [blame] | 556 | return true; |
Sho SHIMIZU | 2d8a13a | 2015-08-18 22:37:41 -0700 | [diff] [blame] | 557 | } |
| 558 | |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 559 | if (values.stream().allMatch(x -> !oldValues.contains(x))) { |
Sho SHIMIZU | 5618ee5 | 2015-08-21 17:19:44 -0700 | [diff] [blame] | 560 | // don't write map because none of the values are stored |
HIGUCHI Yuta | dc4394c | 2016-01-29 15:35:10 -0800 | [diff] [blame] | 561 | log.trace("No-Op removing values. key {} did not contain {}", key, values); |
Sho SHIMIZU | 5618ee5 | 2015-08-21 17:19:44 -0700 | [diff] [blame] | 562 | return true; |
| 563 | } |
| 564 | |
Sho SHIMIZU | 07b7bc9 | 2016-01-29 18:27:58 -0800 | [diff] [blame] | 565 | LinkedHashSet<Resource> newValues = new LinkedHashSet<>(oldValues); |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 566 | newValues.removeAll(values); |
| 567 | return map.replace(key, oldValues, newValues); |
Sho SHIMIZU | 2d8a13a | 2015-08-18 22:37:41 -0700 | [diff] [blame] | 568 | } |
| 569 | |
| 570 | /** |
Sho SHIMIZU | 72f81b1 | 2016-02-09 09:26:17 -0800 | [diff] [blame] | 571 | * Returns the resource which has the same key as the specified resource ID |
| 572 | * in the set as a value of the map. |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 573 | * |
Sho SHIMIZU | 72f81b1 | 2016-02-09 09:26:17 -0800 | [diff] [blame] | 574 | * @param childTxMap map storing parent - child relationship of resources |
| 575 | * @param id ID of resource to be checked |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 576 | * @return the resource which is regarded as the same as the specified resource |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 577 | */ |
Sho SHIMIZU | a6a6fd3 | 2016-02-10 18:36:44 -0800 | [diff] [blame] | 578 | // Naive implementation, which traverses all elements in the set when continuous resource |
| 579 | // computational complexity: O(1) when discrete resource. O(n) when continuous resource |
| 580 | // where n is the number of elements in the associated set |
Sho SHIMIZU | 72f81b1 | 2016-02-09 09:26:17 -0800 | [diff] [blame] | 581 | private Optional<Resource> lookup(TransactionalMap<DiscreteResourceId, Set<Resource>> childTxMap, ResourceId id) { |
| 582 | if (!id.parent().isPresent()) { |
| 583 | return Optional.of(Resource.ROOT); |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 584 | } |
| 585 | |
Sho SHIMIZU | 72f81b1 | 2016-02-09 09:26:17 -0800 | [diff] [blame] | 586 | Set<Resource> values = childTxMap.get(id.parent().get()); |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 587 | if (values == null) { |
| 588 | return Optional.empty(); |
| 589 | } |
| 590 | |
Sho SHIMIZU | a6a6fd3 | 2016-02-10 18:36:44 -0800 | [diff] [blame] | 591 | // short-circuit if discrete resource |
| 592 | // check the existence in the set: O(1) operation |
| 593 | if (id instanceof DiscreteResourceId) { |
| 594 | DiscreteResource discrete = Resources.discrete((DiscreteResourceId) id).resource(); |
| 595 | if (values.contains(discrete)) { |
| 596 | return Optional.of(discrete); |
| 597 | } else { |
| 598 | return Optional.empty(); |
| 599 | } |
| 600 | } |
| 601 | |
| 602 | // continuous resource case |
| 603 | // iterate over the values in the set: O(n) operation |
Sho SHIMIZU | 72f81b1 | 2016-02-09 09:26:17 -0800 | [diff] [blame] | 604 | return values.stream() |
| 605 | .filter(x -> x.id().equals(id)) |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 606 | .findFirst(); |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 607 | } |
| 608 | |
| 609 | /** |
| 610 | * Checks if there is enough resource volume to allocated the requested resource |
| 611 | * against the specified resource. |
| 612 | * |
| 613 | * @param original original resource |
| 614 | * @param request requested resource |
| 615 | * @param allocation current allocation of the resource |
| 616 | * @return true if there is enough resource volume. Otherwise, false. |
| 617 | */ |
Sho SHIMIZU | dd3750c | 2016-02-01 11:37:04 -0800 | [diff] [blame] | 618 | // computational complexity: O(n) where n is the number of allocations |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 619 | private boolean hasEnoughResource(ContinuousResource original, |
| 620 | ContinuousResource request, |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 621 | ContinuousResourceAllocation allocation) { |
| 622 | if (allocation == null) { |
| 623 | return request.value() <= original.value(); |
| 624 | } |
| 625 | |
| 626 | double allocated = allocation.allocations().stream() |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 627 | .filter(x -> x.resource() instanceof ContinuousResource) |
| 628 | .map(x -> (ContinuousResource) x.resource()) |
| 629 | .mapToDouble(ContinuousResource::value) |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 630 | .sum(); |
| 631 | double left = original.value() - allocated; |
| 632 | return request.value() <= left; |
| 633 | } |
| 634 | |
| 635 | // internal use only |
| 636 | private static final class ContinuousResourceAllocation { |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 637 | private final ContinuousResource original; |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 638 | private final ImmutableList<ResourceAllocation> allocations; |
| 639 | |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 640 | private ContinuousResourceAllocation(ContinuousResource original, |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 641 | ImmutableList<ResourceAllocation> allocations) { |
| 642 | this.original = original; |
| 643 | this.allocations = allocations; |
| 644 | } |
| 645 | |
Sho SHIMIZU | f33b893 | 2016-01-25 18:43:32 -0800 | [diff] [blame] | 646 | private ContinuousResource original() { |
Sho SHIMIZU | 6c9e33a | 2016-01-07 18:45:27 -0800 | [diff] [blame] | 647 | return original; |
| 648 | } |
| 649 | |
| 650 | private ImmutableList<ResourceAllocation> allocations() { |
| 651 | return allocations; |
| 652 | } |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 653 | } |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 654 | } |