Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 1 | package org.onlab.onos.cluster.impl; |
| 2 | |
alshabib | 339a3d9 | 2014-09-26 17:54:32 -0700 | [diff] [blame] | 3 | import static com.google.common.base.Preconditions.checkNotNull; |
| 4 | import static org.slf4j.LoggerFactory.getLogger; |
| 5 | |
| 6 | import java.util.Set; |
| 7 | |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 8 | import org.apache.felix.scr.annotations.Activate; |
tom | 4a5d171 | 2014-09-23 17:49:39 -0700 | [diff] [blame] | 9 | import org.apache.felix.scr.annotations.Component; |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 10 | import org.apache.felix.scr.annotations.Deactivate; |
| 11 | import org.apache.felix.scr.annotations.Reference; |
| 12 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
tom | 4a5d171 | 2014-09-23 17:49:39 -0700 | [diff] [blame] | 13 | import org.apache.felix.scr.annotations.Service; |
Ayaka Koshibe | 3de43ca | 2014-09-26 16:40:23 -0700 | [diff] [blame] | 14 | import org.onlab.onos.cluster.ClusterEvent; |
| 15 | import org.onlab.onos.cluster.ClusterEventListener; |
tom | 4a5d171 | 2014-09-23 17:49:39 -0700 | [diff] [blame] | 16 | import org.onlab.onos.cluster.ClusterService; |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 17 | import org.onlab.onos.cluster.NodeId; |
| 18 | import org.onlab.onos.event.AbstractListenerRegistry; |
| 19 | import org.onlab.onos.event.EventDeliveryService; |
| 20 | import org.onlab.onos.net.DeviceId; |
Madan Jampani | 58819b4 | 2014-10-09 13:48:51 -0700 | [diff] [blame] | 21 | import org.onlab.onos.net.device.DeviceMastershipAdminService; |
| 22 | import org.onlab.onos.net.device.DeviceMastershipEvent; |
| 23 | import org.onlab.onos.net.device.DeviceMastershipListener; |
Madan Jampani | 195af6e | 2014-10-09 15:01:17 -0700 | [diff] [blame^] | 24 | import org.onlab.onos.net.device.DeviceMastershipRole; |
Madan Jampani | 58819b4 | 2014-10-09 13:48:51 -0700 | [diff] [blame] | 25 | import org.onlab.onos.net.device.DeviceMastershipService; |
| 26 | import org.onlab.onos.net.device.DeviceMastershipStore; |
| 27 | import org.onlab.onos.net.device.DeviceMastershipStoreDelegate; |
| 28 | import org.onlab.onos.net.device.DeviceMastershipTerm; |
| 29 | import org.onlab.onos.net.device.DeviceMastershipTermService; |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 30 | import org.slf4j.Logger; |
| 31 | |
tom | 4a5d171 | 2014-09-23 17:49:39 -0700 | [diff] [blame] | 32 | @Component(immediate = true) |
| 33 | @Service |
Ayaka Koshibe | 3eed2b0 | 2014-09-23 13:28:05 -0700 | [diff] [blame] | 34 | public class MastershipManager |
Madan Jampani | 58819b4 | 2014-10-09 13:48:51 -0700 | [diff] [blame] | 35 | implements DeviceMastershipService, DeviceMastershipAdminService { |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 36 | |
| 37 | private static final String NODE_ID_NULL = "Node ID cannot be null"; |
| 38 | private static final String DEVICE_ID_NULL = "Device ID cannot be null"; |
| 39 | private static final String ROLE_NULL = "Mastership role cannot be null"; |
| 40 | |
| 41 | private final Logger log = getLogger(getClass()); |
| 42 | |
Madan Jampani | 58819b4 | 2014-10-09 13:48:51 -0700 | [diff] [blame] | 43 | protected final AbstractListenerRegistry<DeviceMastershipEvent, DeviceMastershipListener> |
alshabib | 339a3d9 | 2014-09-26 17:54:32 -0700 | [diff] [blame] | 44 | listenerRegistry = new AbstractListenerRegistry<>(); |
| 45 | |
Madan Jampani | 58819b4 | 2014-10-09 13:48:51 -0700 | [diff] [blame] | 46 | private final DeviceMastershipStoreDelegate delegate = new InternalDelegate(); |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 47 | |
| 48 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
Madan Jampani | 58819b4 | 2014-10-09 13:48:51 -0700 | [diff] [blame] | 49 | protected DeviceMastershipStore store; |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 50 | |
| 51 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 52 | protected EventDeliveryService eventDispatcher; |
| 53 | |
| 54 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
tom | 4a5d171 | 2014-09-23 17:49:39 -0700 | [diff] [blame] | 55 | protected ClusterService clusterService; |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 56 | |
Ayaka Koshibe | 3de43ca | 2014-09-26 16:40:23 -0700 | [diff] [blame] | 57 | private ClusterEventListener clusterListener = new InternalClusterEventListener(); |
| 58 | |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 59 | @Activate |
| 60 | public void activate() { |
Madan Jampani | 58819b4 | 2014-10-09 13:48:51 -0700 | [diff] [blame] | 61 | eventDispatcher.addSink(DeviceMastershipEvent.class, listenerRegistry); |
Ayaka Koshibe | 3de43ca | 2014-09-26 16:40:23 -0700 | [diff] [blame] | 62 | clusterService.addListener(clusterListener); |
alshabib | 339a3d9 | 2014-09-26 17:54:32 -0700 | [diff] [blame] | 63 | store.setDelegate(delegate); |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 64 | log.info("Started"); |
| 65 | } |
| 66 | |
| 67 | @Deactivate |
| 68 | public void deactivate() { |
Madan Jampani | 58819b4 | 2014-10-09 13:48:51 -0700 | [diff] [blame] | 69 | eventDispatcher.removeSink(DeviceMastershipEvent.class); |
Ayaka Koshibe | 3de43ca | 2014-09-26 16:40:23 -0700 | [diff] [blame] | 70 | clusterService.removeListener(clusterListener); |
alshabib | 339a3d9 | 2014-09-26 17:54:32 -0700 | [diff] [blame] | 71 | store.unsetDelegate(delegate); |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 72 | log.info("Stopped"); |
| 73 | } |
| 74 | |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 75 | @Override |
Madan Jampani | 195af6e | 2014-10-09 15:01:17 -0700 | [diff] [blame^] | 76 | public void setRole(NodeId nodeId, DeviceId deviceId, DeviceMastershipRole role) { |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 77 | checkNotNull(nodeId, NODE_ID_NULL); |
| 78 | checkNotNull(deviceId, DEVICE_ID_NULL); |
| 79 | checkNotNull(role, ROLE_NULL); |
Ayaka Koshibe | d9f693e | 2014-09-29 18:04:54 -0700 | [diff] [blame] | 80 | |
Madan Jampani | 58819b4 | 2014-10-09 13:48:51 -0700 | [diff] [blame] | 81 | DeviceMastershipEvent event = null; |
Madan Jampani | 195af6e | 2014-10-09 15:01:17 -0700 | [diff] [blame^] | 82 | if (role.equals(DeviceMastershipRole.MASTER)) { |
Ayaka Koshibe | 971a38a | 2014-09-30 11:56:23 -0700 | [diff] [blame] | 83 | event = store.setMaster(nodeId, deviceId); |
Ayaka Koshibe | d9f693e | 2014-09-29 18:04:54 -0700 | [diff] [blame] | 84 | } else { |
Ayaka Koshibe | c404770 | 2014-10-07 14:43:52 -0700 | [diff] [blame] | 85 | event = store.setStandby(nodeId, deviceId); |
Ayaka Koshibe | 971a38a | 2014-09-30 11:56:23 -0700 | [diff] [blame] | 86 | } |
Ayaka Koshibe | d9f693e | 2014-09-29 18:04:54 -0700 | [diff] [blame] | 87 | |
Ayaka Koshibe | 971a38a | 2014-09-30 11:56:23 -0700 | [diff] [blame] | 88 | if (event != null) { |
| 89 | post(event); |
Ayaka Koshibe | a7f044e | 2014-09-23 16:56:20 -0700 | [diff] [blame] | 90 | } |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 91 | } |
| 92 | |
| 93 | @Override |
Madan Jampani | 195af6e | 2014-10-09 15:01:17 -0700 | [diff] [blame^] | 94 | public DeviceMastershipRole getLocalRole(DeviceId deviceId) { |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 95 | checkNotNull(deviceId, DEVICE_ID_NULL); |
| 96 | return store.getRole(clusterService.getLocalNode().id(), deviceId); |
| 97 | } |
| 98 | |
| 99 | @Override |
| 100 | public void relinquishMastership(DeviceId deviceId) { |
Madan Jampani | 58819b4 | 2014-10-09 13:48:51 -0700 | [diff] [blame] | 101 | DeviceMastershipEvent event = null; |
Ayaka Koshibe | 1c292d7 | 2014-10-08 17:46:07 -0700 | [diff] [blame] | 102 | event = store.relinquishRole( |
| 103 | clusterService.getLocalNode().id(), deviceId); |
Ayaka Koshibe | d9f693e | 2014-09-29 18:04:54 -0700 | [diff] [blame] | 104 | |
Ayaka Koshibe | d9f693e | 2014-09-29 18:04:54 -0700 | [diff] [blame] | 105 | if (event != null) { |
| 106 | post(event); |
| 107 | } |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 108 | } |
| 109 | |
| 110 | @Override |
Madan Jampani | 195af6e | 2014-10-09 15:01:17 -0700 | [diff] [blame^] | 111 | public DeviceMastershipRole requestRoleFor(DeviceId deviceId) { |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 112 | checkNotNull(deviceId, DEVICE_ID_NULL); |
| 113 | return store.requestRole(deviceId); |
| 114 | } |
| 115 | |
| 116 | @Override |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 117 | public NodeId getMasterFor(DeviceId deviceId) { |
| 118 | checkNotNull(deviceId, DEVICE_ID_NULL); |
| 119 | return store.getMaster(deviceId); |
| 120 | } |
| 121 | |
| 122 | @Override |
| 123 | public Set<DeviceId> getDevicesOf(NodeId nodeId) { |
| 124 | checkNotNull(nodeId, NODE_ID_NULL); |
| 125 | return store.getDevices(nodeId); |
| 126 | } |
| 127 | |
Ayaka Koshibe | b70d34b | 2014-09-25 15:43:01 -0700 | [diff] [blame] | 128 | |
| 129 | @Override |
Madan Jampani | 58819b4 | 2014-10-09 13:48:51 -0700 | [diff] [blame] | 130 | public DeviceMastershipTermService requestTermService() { |
Ayaka Koshibe | b70d34b | 2014-09-25 15:43:01 -0700 | [diff] [blame] | 131 | return new InternalMastershipTermService(); |
| 132 | } |
| 133 | |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 134 | @Override |
Madan Jampani | 58819b4 | 2014-10-09 13:48:51 -0700 | [diff] [blame] | 135 | public void addListener(DeviceMastershipListener listener) { |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 136 | checkNotNull(listener); |
| 137 | listenerRegistry.addListener(listener); |
| 138 | } |
| 139 | |
| 140 | @Override |
Madan Jampani | 58819b4 | 2014-10-09 13:48:51 -0700 | [diff] [blame] | 141 | public void removeListener(DeviceMastershipListener listener) { |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 142 | checkNotNull(listener); |
| 143 | listenerRegistry.removeListener(listener); |
| 144 | } |
| 145 | |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 146 | // FIXME: provide wiring to allow events to be triggered by changes within the store |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 147 | |
| 148 | // Posts the specified event to the local event dispatcher. |
Madan Jampani | 58819b4 | 2014-10-09 13:48:51 -0700 | [diff] [blame] | 149 | private void post(DeviceMastershipEvent event) { |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 150 | if (event != null && eventDispatcher != null) { |
| 151 | eventDispatcher.post(event); |
| 152 | } |
| 153 | } |
Ayaka Koshibe | 3eed2b0 | 2014-09-23 13:28:05 -0700 | [diff] [blame] | 154 | |
Madan Jampani | 58819b4 | 2014-10-09 13:48:51 -0700 | [diff] [blame] | 155 | private class InternalMastershipTermService implements DeviceMastershipTermService { |
Ayaka Koshibe | b70d34b | 2014-09-25 15:43:01 -0700 | [diff] [blame] | 156 | |
| 157 | @Override |
Madan Jampani | 58819b4 | 2014-10-09 13:48:51 -0700 | [diff] [blame] | 158 | public DeviceMastershipTerm getMastershipTerm(DeviceId deviceId) { |
Ayaka Koshibe | b70d34b | 2014-09-25 15:43:01 -0700 | [diff] [blame] | 159 | return store.getTermFor(deviceId); |
| 160 | } |
| 161 | |
| 162 | } |
| 163 | |
Ayaka Koshibe | 3de43ca | 2014-09-26 16:40:23 -0700 | [diff] [blame] | 164 | //callback for reacting to cluster events |
| 165 | private class InternalClusterEventListener implements ClusterEventListener { |
| 166 | |
| 167 | @Override |
| 168 | public void event(ClusterEvent event) { |
| 169 | switch (event.type()) { |
| 170 | //FIXME: worry about addition when the time comes |
| 171 | case INSTANCE_ADDED: |
| 172 | case INSTANCE_ACTIVATED: |
| 173 | break; |
| 174 | case INSTANCE_REMOVED: |
| 175 | case INSTANCE_DEACTIVATED: |
Ayaka Koshibe | 3de43ca | 2014-09-26 16:40:23 -0700 | [diff] [blame] | 176 | break; |
| 177 | default: |
| 178 | log.warn("unknown cluster event {}", event); |
| 179 | } |
| 180 | } |
| 181 | |
| 182 | } |
Ayaka Koshibe | 65efaef | 2014-09-29 18:21:56 -0700 | [diff] [blame] | 183 | |
Madan Jampani | 58819b4 | 2014-10-09 13:48:51 -0700 | [diff] [blame] | 184 | public class InternalDelegate implements DeviceMastershipStoreDelegate { |
alshabib | 339a3d9 | 2014-09-26 17:54:32 -0700 | [diff] [blame] | 185 | |
| 186 | @Override |
Madan Jampani | 58819b4 | 2014-10-09 13:48:51 -0700 | [diff] [blame] | 187 | public void notify(DeviceMastershipEvent event) { |
alshabib | 339a3d9 | 2014-09-26 17:54:32 -0700 | [diff] [blame] | 188 | log.info("dispatching mastership event {}", event); |
| 189 | eventDispatcher.post(event); |
| 190 | } |
| 191 | |
| 192 | } |
| 193 | |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 194 | } |