jcc | de3e92e | 2015-03-28 01:40:44 -0700 | [diff] [blame^] | 1 | package org.onosproject.net.resource.impl; |
| 2 | |
| 3 | import static org.slf4j.LoggerFactory.getLogger; |
| 4 | |
| 5 | import java.util.Collection; |
| 6 | import java.util.Set; |
| 7 | |
| 8 | import org.apache.felix.scr.annotations.Activate; |
| 9 | import org.apache.felix.scr.annotations.Component; |
| 10 | import org.apache.felix.scr.annotations.Deactivate; |
| 11 | import org.apache.felix.scr.annotations.Reference; |
| 12 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 13 | import org.apache.felix.scr.annotations.Service; |
| 14 | import org.onosproject.event.AbstractListenerRegistry; |
| 15 | import org.onosproject.event.EventDeliveryService; |
| 16 | import org.onosproject.net.Device; |
| 17 | import org.onosproject.net.DeviceId; |
| 18 | import org.onosproject.net.device.DeviceEvent; |
| 19 | import org.onosproject.net.device.DeviceEvent.Type; |
| 20 | import org.onosproject.net.device.DeviceListener; |
| 21 | import org.onosproject.net.device.DeviceService; |
| 22 | import org.onosproject.net.provider.AbstractProviderRegistry; |
| 23 | import org.onosproject.net.provider.AbstractProviderService; |
| 24 | import org.onosproject.net.resource.LabelResource; |
| 25 | import org.onosproject.net.resource.LabelResourceAdminService; |
| 26 | import org.onosproject.net.resource.LabelResourceDelegate; |
| 27 | import org.onosproject.net.resource.LabelResourceEvent; |
| 28 | import org.onosproject.net.resource.LabelResourceId; |
| 29 | import org.onosproject.net.resource.LabelResourceListener; |
| 30 | import org.onosproject.net.resource.LabelResourcePool; |
| 31 | import org.onosproject.net.resource.LabelResourceProvider; |
| 32 | import org.onosproject.net.resource.LabelResourceProviderRegistry; |
| 33 | import org.onosproject.net.resource.LabelResourceProviderService; |
| 34 | import org.onosproject.net.resource.LabelResourceService; |
| 35 | import org.onosproject.net.resource.LabelResourceStore; |
| 36 | import org.slf4j.Logger; |
| 37 | import static com.google.common.base.Preconditions.checkNotNull; |
| 38 | import static com.google.common.base.Preconditions.checkArgument; |
| 39 | |
| 40 | import com.google.common.collect.Multimap; |
| 41 | |
| 42 | /** |
| 43 | * provides implementation of the label resource NB & SB APIs. |
| 44 | * |
| 45 | */ |
| 46 | @Component(immediate = true) |
| 47 | @Service |
| 48 | public class LabelResourceManager |
| 49 | extends |
| 50 | AbstractProviderRegistry<LabelResourceProvider, LabelResourceProviderService> |
| 51 | implements LabelResourceService, LabelResourceAdminService, |
| 52 | LabelResourceProviderRegistry { |
| 53 | private final Logger log = getLogger(getClass()); |
| 54 | private final LabelResourceDelegate delegate = new InternalLabelResourceDelegate(); |
| 55 | |
| 56 | private final AbstractListenerRegistry<LabelResourceEvent, LabelResourceListener> listenerRegistry |
| 57 | = new AbstractListenerRegistry<>(); |
| 58 | |
| 59 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 60 | protected LabelResourceStore store; |
| 61 | |
| 62 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 63 | protected EventDeliveryService eventDispatcher; |
| 64 | |
| 65 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 66 | protected DeviceService deviceService; |
| 67 | |
| 68 | private DeviceListener deviceListener = new InternalDeviceListener(); |
| 69 | |
| 70 | @Activate |
| 71 | public void activate() { |
| 72 | store.setDelegate(delegate); |
| 73 | eventDispatcher.addSink(LabelResourceEvent.class, listenerRegistry); |
| 74 | deviceService.addListener(deviceListener); |
| 75 | log.info("Started"); |
| 76 | |
| 77 | } |
| 78 | |
| 79 | @Deactivate |
| 80 | public void deactivate() { |
| 81 | deviceService.removeListener(deviceListener); |
| 82 | store.unsetDelegate(delegate); |
| 83 | eventDispatcher.removeSink(LabelResourceEvent.class); |
| 84 | log.info("Stopped"); |
| 85 | } |
| 86 | |
| 87 | @Override |
| 88 | public boolean createDevicePool(DeviceId deviceId, |
| 89 | LabelResourceId beginLabel, |
| 90 | LabelResourceId endLabel) { |
| 91 | checkNotNull(deviceId, "deviceId is not null"); |
| 92 | checkNotNull(beginLabel, "beginLabel is not null"); |
| 93 | checkNotNull(endLabel, "beginLabel is not null"); |
| 94 | checkArgument(beginLabel.labelId() < 0 || endLabel.labelId() < 0, |
| 95 | "The value of beginLabel and the value of endLabel must be both positive number."); |
| 96 | checkArgument(beginLabel.labelId() > endLabel.labelId(), |
| 97 | "The value of endLabel must be greater than the value of endLabel."); |
| 98 | return store.createDevicePool(deviceId, beginLabel, endLabel); |
| 99 | } |
| 100 | |
| 101 | @Override |
| 102 | public boolean createGlobalPool(LabelResourceId beginLabel, |
| 103 | LabelResourceId endLabel) { |
| 104 | checkNotNull(beginLabel, "beginLabel is not null"); |
| 105 | checkNotNull(endLabel, "beginLabel is not null"); |
| 106 | checkArgument(beginLabel.labelId() < 0 || endLabel.labelId() < 0, |
| 107 | "The value of beginLabel and the value of endLabel must be both positive number."); |
| 108 | checkArgument(beginLabel.labelId() > endLabel.labelId(), |
| 109 | "The value of endLabel must be greater than the value of endLabel."); |
| 110 | return store.createGlobalPool(beginLabel, endLabel); |
| 111 | } |
| 112 | |
| 113 | @Override |
| 114 | public boolean destroyDevicePool(DeviceId deviceId) { |
| 115 | checkNotNull(deviceId, "deviceId is not null"); |
| 116 | return store.destroyDevicePool(deviceId); |
| 117 | } |
| 118 | |
| 119 | @Override |
| 120 | public boolean destroyGlobalPool() { |
| 121 | return store.destroyGlobalPool(); |
| 122 | } |
| 123 | |
| 124 | @Override |
| 125 | public Collection<LabelResource> applyFromDevicePool(DeviceId deviceId, |
| 126 | long applyNum) { |
| 127 | checkNotNull(deviceId, "deviceId is not null"); |
| 128 | checkNotNull(applyNum, "applyNum is not null"); |
| 129 | return store.applyFromDevicePool(deviceId, applyNum); |
| 130 | } |
| 131 | |
| 132 | @Override |
| 133 | public Collection<LabelResource> applyFromGlobalPool(long applyNum) { |
| 134 | checkNotNull(applyNum, "applyNum is not null"); |
| 135 | return store.applyFromGlobalPool(applyNum); |
| 136 | } |
| 137 | |
| 138 | @Override |
| 139 | public boolean releaseToDevicePool(Multimap<DeviceId, LabelResource> release) { |
| 140 | checkNotNull(release, "release is not null"); |
| 141 | return store.releaseToDevicePool(release); |
| 142 | } |
| 143 | |
| 144 | @Override |
| 145 | public boolean releaseToGlobalPool(Set<LabelResourceId> release) { |
| 146 | checkNotNull(release, "release is not null"); |
| 147 | return store.releaseToGlobalPool(release); |
| 148 | } |
| 149 | |
| 150 | @Override |
| 151 | public boolean isDevicePoolFull(DeviceId deviceId) { |
| 152 | checkNotNull(deviceId, "deviceId is not null"); |
| 153 | return store.isDevicePoolFull(deviceId); |
| 154 | } |
| 155 | |
| 156 | @Override |
| 157 | public boolean isGlobalPoolFull() { |
| 158 | return store.isGlobalPoolFull(); |
| 159 | } |
| 160 | |
| 161 | @Override |
| 162 | public long getFreeNumOfDevicePool(DeviceId deviceId) { |
| 163 | checkNotNull(deviceId, "deviceId is not null"); |
| 164 | return store.getFreeNumOfDevicePool(deviceId); |
| 165 | } |
| 166 | |
| 167 | @Override |
| 168 | public long getFreeNumOfGlobalPool() { |
| 169 | return store.getFreeNumOfGlobalPool(); |
| 170 | } |
| 171 | |
| 172 | @Override |
| 173 | public LabelResourcePool getDeviceLabelResourcePool(DeviceId deviceId) { |
| 174 | checkNotNull(deviceId, "deviceId is not null"); |
| 175 | return store.getDeviceLabelResourcePool(deviceId); |
| 176 | } |
| 177 | |
| 178 | @Override |
| 179 | public LabelResourcePool getGlobalLabelResourcePool() { |
| 180 | return store.getGlobalLabelResourcePool(); |
| 181 | } |
| 182 | |
| 183 | @Override |
| 184 | public void addListener(LabelResourceListener listener) { |
| 185 | listenerRegistry.addListener(listener); |
| 186 | } |
| 187 | |
| 188 | @Override |
| 189 | public void removeListener(LabelResourceListener listener) { |
| 190 | listenerRegistry.removeListener(listener); |
| 191 | |
| 192 | } |
| 193 | |
| 194 | private void post(LabelResourceEvent event) { |
| 195 | if (event != null) { |
| 196 | eventDispatcher.post(event); |
| 197 | } |
| 198 | } |
| 199 | |
| 200 | private class InternalLabelResourceDelegate |
| 201 | implements LabelResourceDelegate { |
| 202 | |
| 203 | @Override |
| 204 | public void notify(LabelResourceEvent event) { |
| 205 | post(event); |
| 206 | } |
| 207 | |
| 208 | } |
| 209 | |
| 210 | private class InternalDeviceListener implements DeviceListener { |
| 211 | |
| 212 | @Override |
| 213 | public void event(DeviceEvent event) { |
| 214 | Device device = event.subject(); |
| 215 | if (Type.DEVICE_REMOVED.equals(event.type())) { |
| 216 | destroyDevicePool(device.id()); |
| 217 | } |
| 218 | } |
| 219 | } |
| 220 | |
| 221 | private class InternalLabelResourceProviderService |
| 222 | extends AbstractProviderService<LabelResourceProvider> |
| 223 | implements LabelResourceProviderService { |
| 224 | |
| 225 | protected InternalLabelResourceProviderService(LabelResourceProvider provider) { |
| 226 | super(provider); |
| 227 | } |
| 228 | |
| 229 | @Override |
| 230 | public void deviceLabelResourcePoolDetected(DeviceId deviceId, |
| 231 | LabelResourceId beginLabel, |
| 232 | LabelResourceId endLabel) { |
| 233 | checkNotNull(deviceId, "deviceId is not null"); |
| 234 | checkNotNull(beginLabel, "beginLabel is not null"); |
| 235 | checkNotNull(endLabel, "endLabel is not null"); |
| 236 | createDevicePool(deviceId, beginLabel, endLabel); |
| 237 | } |
| 238 | |
| 239 | @Override |
| 240 | public void deviceLabelResourcePoolDestroyed(DeviceId deviceId) { |
| 241 | checkNotNull(deviceId, "deviceId is not null"); |
| 242 | destroyDevicePool(deviceId); |
| 243 | } |
| 244 | |
| 245 | } |
| 246 | |
| 247 | @Override |
| 248 | protected LabelResourceProviderService createProviderService(LabelResourceProvider provider) { |
| 249 | return new InternalLabelResourceProviderService(provider); |
| 250 | } |
| 251 | } |