Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -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.net.newresource.impl; |
| 17 | |
| 18 | import com.google.common.annotations.Beta; |
| 19 | import com.google.common.collect.ImmutableList; |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 20 | import com.google.common.collect.Lists; |
Sho SHIMIZU | fa62b47 | 2015-11-02 17:35:46 -0800 | [diff] [blame] | 21 | import org.apache.felix.scr.annotations.Activate; |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 22 | import org.apache.felix.scr.annotations.Component; |
Sho SHIMIZU | fa62b47 | 2015-11-02 17:35:46 -0800 | [diff] [blame] | 23 | import org.apache.felix.scr.annotations.Deactivate; |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 24 | import org.apache.felix.scr.annotations.Reference; |
| 25 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 26 | import org.apache.felix.scr.annotations.Service; |
Sho SHIMIZU | fa62b47 | 2015-11-02 17:35:46 -0800 | [diff] [blame] | 27 | import org.onosproject.event.AbstractListenerManager; |
Sho SHIMIZU | 70ee1ee | 2015-08-06 11:11:52 -0700 | [diff] [blame] | 28 | import org.onosproject.net.newresource.ResourceAdminService; |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 29 | import org.onosproject.net.newresource.ResourceAllocation; |
| 30 | import org.onosproject.net.newresource.ResourceConsumer; |
Sho SHIMIZU | fa62b47 | 2015-11-02 17:35:46 -0800 | [diff] [blame] | 31 | import org.onosproject.net.newresource.ResourceEvent; |
| 32 | import org.onosproject.net.newresource.ResourceListener; |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 33 | import org.onosproject.net.newresource.ResourceService; |
Sho SHIMIZU | 1f5e591 | 2015-08-10 17:00:00 -0700 | [diff] [blame] | 34 | import org.onosproject.net.newresource.ResourcePath; |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 35 | import org.onosproject.net.newresource.ResourceStore; |
Sho SHIMIZU | fa62b47 | 2015-11-02 17:35:46 -0800 | [diff] [blame] | 36 | import org.onosproject.net.newresource.ResourceStoreDelegate; |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 37 | |
| 38 | import java.util.ArrayList; |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 39 | import java.util.Collection; |
| 40 | import java.util.List; |
| 41 | import java.util.Optional; |
| 42 | import java.util.stream.Collectors; |
| 43 | |
Sho SHIMIZU | 7b1ef13 | 2015-08-19 18:18:13 -0700 | [diff] [blame] | 44 | import static com.google.common.base.Preconditions.checkArgument; |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 45 | import static com.google.common.base.Preconditions.checkNotNull; |
| 46 | |
| 47 | /** |
| 48 | * An implementation of ResourceService. |
| 49 | */ |
Sho SHIMIZU | 9a2b829 | 2015-10-28 13:00:16 -0700 | [diff] [blame] | 50 | @Component(immediate = true) |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 51 | @Service |
| 52 | @Beta |
Sho SHIMIZU | fa62b47 | 2015-11-02 17:35:46 -0800 | [diff] [blame] | 53 | public final class ResourceManager extends AbstractListenerManager<ResourceEvent, ResourceListener> |
| 54 | implements ResourceService, ResourceAdminService { |
Sho SHIMIZU | 70ee1ee | 2015-08-06 11:11:52 -0700 | [diff] [blame] | 55 | |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 56 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 57 | protected ResourceStore store; |
| 58 | |
Sho SHIMIZU | fa62b47 | 2015-11-02 17:35:46 -0800 | [diff] [blame] | 59 | private final ResourceStoreDelegate delegate = new InternalStoreDelegate(); |
| 60 | |
| 61 | @Activate |
| 62 | public void activate() { |
| 63 | store.setDelegate(delegate); |
| 64 | eventDispatcher.addSink(ResourceEvent.class, listenerRegistry); |
| 65 | } |
| 66 | |
| 67 | @Deactivate |
| 68 | public void deactivate() { |
| 69 | store.unsetDelegate(delegate); |
Madan Jampani | a85c694 | 2015-11-09 14:41:48 -0800 | [diff] [blame^] | 70 | eventDispatcher.removeSink(ResourceEvent.class); |
Sho SHIMIZU | fa62b47 | 2015-11-02 17:35:46 -0800 | [diff] [blame] | 71 | } |
| 72 | |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 73 | @Override |
Sho SHIMIZU | 1f5e591 | 2015-08-10 17:00:00 -0700 | [diff] [blame] | 74 | public List<ResourceAllocation> allocate(ResourceConsumer consumer, |
| 75 | List<ResourcePath> resources) { |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 76 | checkNotNull(consumer); |
| 77 | checkNotNull(resources); |
| 78 | |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 79 | boolean success = store.allocate(resources, consumer); |
| 80 | if (!success) { |
| 81 | return ImmutableList.of(); |
| 82 | } |
| 83 | |
| 84 | return resources.stream() |
Sho SHIMIZU | 1f5e591 | 2015-08-10 17:00:00 -0700 | [diff] [blame] | 85 | .map(x -> new ResourceAllocation(x, consumer)) |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 86 | .collect(Collectors.toList()); |
| 87 | } |
| 88 | |
| 89 | @Override |
Sho SHIMIZU | 1f5e591 | 2015-08-10 17:00:00 -0700 | [diff] [blame] | 90 | public boolean release(List<ResourceAllocation> allocations) { |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 91 | checkNotNull(allocations); |
| 92 | |
Sho SHIMIZU | 1f5e591 | 2015-08-10 17:00:00 -0700 | [diff] [blame] | 93 | List<ResourcePath> resources = allocations.stream() |
| 94 | .map(ResourceAllocation::resource) |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 95 | .collect(Collectors.toList()); |
| 96 | List<ResourceConsumer> consumers = allocations.stream() |
| 97 | .map(ResourceAllocation::consumer) |
| 98 | .collect(Collectors.toList()); |
| 99 | |
| 100 | return store.release(resources, consumers); |
| 101 | } |
| 102 | |
| 103 | @Override |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 104 | public boolean release(ResourceConsumer consumer) { |
| 105 | checkNotNull(consumer); |
| 106 | |
Sho SHIMIZU | 1f5e591 | 2015-08-10 17:00:00 -0700 | [diff] [blame] | 107 | Collection<ResourceAllocation> allocations = getResourceAllocations(consumer); |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 108 | return release(ImmutableList.copyOf(allocations)); |
| 109 | } |
| 110 | |
| 111 | @Override |
Sho SHIMIZU | f853b0e | 2015-09-29 15:15:32 -0700 | [diff] [blame] | 112 | public Optional<ResourceAllocation> getResourceAllocation(ResourcePath resource) { |
| 113 | checkNotNull(resource); |
| 114 | |
| 115 | Optional<ResourceConsumer> consumer = store.getConsumer(resource); |
| 116 | return consumer.map(x -> new ResourceAllocation(resource, x)); |
| 117 | } |
| 118 | |
| 119 | @Override |
Sho SHIMIZU | 1f5e591 | 2015-08-10 17:00:00 -0700 | [diff] [blame] | 120 | public <T> Collection<ResourceAllocation> getResourceAllocations(ResourcePath parent, Class<T> cls) { |
| 121 | checkNotNull(parent); |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 122 | checkNotNull(cls); |
| 123 | |
Sho SHIMIZU | 1f5e591 | 2015-08-10 17:00:00 -0700 | [diff] [blame] | 124 | Collection<ResourcePath> resources = store.getAllocatedResources(parent, cls); |
| 125 | List<ResourceAllocation> allocations = new ArrayList<>(resources.size()); |
| 126 | for (ResourcePath resource: resources) { |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 127 | // We access store twice in this method, then the store may be updated by others |
| 128 | Optional<ResourceConsumer> consumer = store.getConsumer(resource); |
| 129 | if (consumer.isPresent()) { |
Sho SHIMIZU | 1f5e591 | 2015-08-10 17:00:00 -0700 | [diff] [blame] | 130 | allocations.add(new ResourceAllocation(resource, consumer.get())); |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 131 | } |
| 132 | } |
| 133 | |
| 134 | return allocations; |
| 135 | } |
| 136 | |
| 137 | @Override |
Sho SHIMIZU | 1f5e591 | 2015-08-10 17:00:00 -0700 | [diff] [blame] | 138 | public Collection<ResourceAllocation> getResourceAllocations(ResourceConsumer consumer) { |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 139 | checkNotNull(consumer); |
| 140 | |
Sho SHIMIZU | 1f5e591 | 2015-08-10 17:00:00 -0700 | [diff] [blame] | 141 | Collection<ResourcePath> resources = store.getResources(consumer); |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 142 | return resources.stream() |
Sho SHIMIZU | 1f5e591 | 2015-08-10 17:00:00 -0700 | [diff] [blame] | 143 | .map(x -> new ResourceAllocation(x, consumer)) |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 144 | .collect(Collectors.toList()); |
| 145 | } |
| 146 | |
| 147 | @Override |
Sho SHIMIZU | e7f4f3f | 2015-10-13 16:27:25 -0700 | [diff] [blame] | 148 | public Collection<ResourcePath> getAvailableResources(ResourcePath parent) { |
| 149 | checkNotNull(parent); |
| 150 | |
| 151 | Collection<ResourcePath> children = store.getChildResources(parent); |
| 152 | return children.stream() |
| 153 | // We access store twice in this method, then the store may be updated by others |
| 154 | .filter(x -> !store.getConsumer(x).isPresent()) |
| 155 | .collect(Collectors.toList()); |
| 156 | } |
| 157 | |
| 158 | @Override |
Sho SHIMIZU | 1f5e591 | 2015-08-10 17:00:00 -0700 | [diff] [blame] | 159 | public boolean isAvailable(ResourcePath resource) { |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 160 | checkNotNull(resource); |
| 161 | |
| 162 | Optional<ResourceConsumer> consumer = store.getConsumer(resource); |
| 163 | return !consumer.isPresent(); |
| 164 | } |
| 165 | |
Sho SHIMIZU | 70ee1ee | 2015-08-06 11:11:52 -0700 | [diff] [blame] | 166 | @Override |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 167 | public <T> boolean registerResources(ResourcePath parent, List<T> children) { |
Sho SHIMIZU | 7b1ef13 | 2015-08-19 18:18:13 -0700 | [diff] [blame] | 168 | checkNotNull(parent); |
| 169 | checkNotNull(children); |
| 170 | checkArgument(!children.isEmpty()); |
| 171 | |
Sho SHIMIZU | ba41fc1 | 2015-08-12 15:43:22 -0700 | [diff] [blame] | 172 | List<ResourcePath> resources = Lists.transform(children, x -> ResourcePath.child(parent, x)); |
Sho SHIMIZU | 83e17a0 | 2015-08-20 14:07:05 -0700 | [diff] [blame] | 173 | return store.register(resources); |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 174 | } |
Sho SHIMIZU | 2d8a13a | 2015-08-18 22:37:41 -0700 | [diff] [blame] | 175 | |
| 176 | @Override |
| 177 | public <T> boolean unregisterResources(ResourcePath parent, List<T> children) { |
Sho SHIMIZU | 7b1ef13 | 2015-08-19 18:18:13 -0700 | [diff] [blame] | 178 | checkNotNull(parent); |
| 179 | checkNotNull(children); |
| 180 | checkArgument(!children.isEmpty()); |
| 181 | |
Sho SHIMIZU | 2d8a13a | 2015-08-18 22:37:41 -0700 | [diff] [blame] | 182 | List<ResourcePath> resources = Lists.transform(children, x -> ResourcePath.child(parent, x)); |
Sho SHIMIZU | 83e17a0 | 2015-08-20 14:07:05 -0700 | [diff] [blame] | 183 | return store.unregister(resources); |
Sho SHIMIZU | 2d8a13a | 2015-08-18 22:37:41 -0700 | [diff] [blame] | 184 | } |
Sho SHIMIZU | fa62b47 | 2015-11-02 17:35:46 -0800 | [diff] [blame] | 185 | |
| 186 | private class InternalStoreDelegate implements ResourceStoreDelegate { |
| 187 | @Override |
| 188 | public void notify(ResourceEvent event) { |
| 189 | post(event); |
| 190 | } |
| 191 | } |
Sho SHIMIZU | 78ee25c | 2015-07-16 15:54:14 -0700 | [diff] [blame] | 192 | } |