Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 1 | package org.onlab.onos.cluster.impl; |
| 2 | |
| 3 | import static org.slf4j.LoggerFactory.getLogger; |
| 4 | |
| 5 | import java.util.Set; |
| 6 | |
| 7 | import org.apache.felix.scr.annotations.Activate; |
| 8 | import org.apache.felix.scr.annotations.Deactivate; |
| 9 | import org.apache.felix.scr.annotations.Reference; |
| 10 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 11 | import org.onlab.onos.cluster.MastershipAdminService; |
| 12 | import org.onlab.onos.cluster.MastershipEvent; |
| 13 | import org.onlab.onos.cluster.MastershipListener; |
| 14 | import org.onlab.onos.cluster.MastershipProvider; |
| 15 | import org.onlab.onos.cluster.MastershipProviderService; |
| 16 | import org.onlab.onos.cluster.MastershipService; |
| 17 | import org.onlab.onos.cluster.MastershipStore; |
| 18 | import org.onlab.onos.cluster.NodeId; |
| 19 | import org.onlab.onos.event.AbstractListenerRegistry; |
| 20 | import org.onlab.onos.event.EventDeliveryService; |
| 21 | import org.onlab.onos.net.DeviceId; |
| 22 | import org.onlab.onos.net.MastershipRole; |
Ayaka Koshibe | 3eed2b0 | 2014-09-23 13:28:05 -0700 | [diff] [blame] | 23 | import org.onlab.onos.net.provider.AbstractProviderRegistry; |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 24 | import org.onlab.onos.net.provider.AbstractProviderService; |
| 25 | import org.slf4j.Logger; |
| 26 | |
| 27 | import static com.google.common.base.Preconditions.checkNotNull; |
| 28 | |
Ayaka Koshibe | 3eed2b0 | 2014-09-23 13:28:05 -0700 | [diff] [blame] | 29 | public class MastershipManager |
| 30 | extends AbstractProviderRegistry<MastershipProvider, MastershipProviderService> |
| 31 | implements MastershipService, MastershipAdminService { |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 32 | |
| 33 | private static final String NODE_ID_NULL = "Node ID cannot be null"; |
| 34 | private static final String DEVICE_ID_NULL = "Device ID cannot be null"; |
| 35 | private static final String ROLE_NULL = "Mastership role cannot be null"; |
| 36 | |
| 37 | private final Logger log = getLogger(getClass()); |
| 38 | |
| 39 | protected final AbstractListenerRegistry<MastershipEvent, MastershipListener> |
| 40 | listenerRegistry = new AbstractListenerRegistry<>(); |
| 41 | |
| 42 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 43 | protected MastershipStore store; |
| 44 | |
| 45 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 46 | protected EventDeliveryService eventDispatcher; |
| 47 | |
| 48 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 49 | protected ClusterManager clusterManager; |
| 50 | |
| 51 | @Activate |
| 52 | public void activate() { |
| 53 | eventDispatcher.addSink(MastershipEvent.class, listenerRegistry); |
| 54 | log.info("Started"); |
| 55 | } |
| 56 | |
| 57 | @Deactivate |
| 58 | public void deactivate() { |
| 59 | eventDispatcher.removeSink(MastershipEvent.class); |
| 60 | log.info("Stopped"); |
| 61 | } |
| 62 | |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 63 | @Override |
| 64 | public void setRole(NodeId nodeId, DeviceId deviceId, MastershipRole role) { |
| 65 | checkNotNull(nodeId, NODE_ID_NULL); |
| 66 | checkNotNull(deviceId, DEVICE_ID_NULL); |
| 67 | checkNotNull(role, ROLE_NULL); |
Ayaka Koshibe | a7f044e | 2014-09-23 16:56:20 -0700 | [diff] [blame] | 68 | MastershipEvent event = store.setRole(nodeId, deviceId, role); |
| 69 | if (event != null) { |
| 70 | post(event); |
| 71 | } |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 72 | } |
| 73 | |
| 74 | @Override |
| 75 | public NodeId getMasterFor(DeviceId deviceId) { |
| 76 | checkNotNull(deviceId, DEVICE_ID_NULL); |
| 77 | return store.getMaster(deviceId); |
| 78 | } |
| 79 | |
| 80 | @Override |
| 81 | public Set<DeviceId> getDevicesOf(NodeId nodeId) { |
| 82 | checkNotNull(nodeId, NODE_ID_NULL); |
| 83 | return store.getDevices(nodeId); |
| 84 | } |
| 85 | |
| 86 | @Override |
| 87 | public MastershipRole requestRoleFor(DeviceId deviceId) { |
| 88 | checkNotNull(deviceId, DEVICE_ID_NULL); |
| 89 | NodeId id = clusterManager.getLocalNode().id(); |
| 90 | return store.getRole(id, deviceId); |
| 91 | } |
| 92 | |
| 93 | @Override |
| 94 | public void addListener(MastershipListener listener) { |
| 95 | checkNotNull(listener); |
| 96 | listenerRegistry.addListener(listener); |
| 97 | } |
| 98 | |
| 99 | @Override |
| 100 | public void removeListener(MastershipListener listener) { |
| 101 | checkNotNull(listener); |
| 102 | listenerRegistry.removeListener(listener); |
| 103 | } |
| 104 | |
Ayaka Koshibe | 3eed2b0 | 2014-09-23 13:28:05 -0700 | [diff] [blame] | 105 | @Override |
| 106 | protected MastershipProviderService createProviderService( |
| 107 | MastershipProvider provider) { |
| 108 | return new InternalMastershipProviderService(provider); |
| 109 | } |
| 110 | |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 111 | private class InternalMastershipProviderService |
| 112 | extends AbstractProviderService<MastershipProvider> |
| 113 | implements MastershipProviderService { |
| 114 | |
| 115 | protected InternalMastershipProviderService(MastershipProvider provider) { |
| 116 | super(provider); |
| 117 | } |
| 118 | |
| 119 | @Override |
Ayaka Koshibe | 3eed2b0 | 2014-09-23 13:28:05 -0700 | [diff] [blame] | 120 | public void roleChanged(NodeId nodeId, DeviceId deviceId, MastershipRole role) { |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 121 | // TODO Auto-generated method stub |
Ayaka Koshibe | 3eed2b0 | 2014-09-23 13:28:05 -0700 | [diff] [blame] | 122 | MastershipEvent event = |
| 123 | store.addOrUpdateDevice(nodeId, deviceId, role); |
| 124 | post(event); |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 125 | } |
| 126 | } |
| 127 | |
| 128 | // Posts the specified event to the local event dispatcher. |
| 129 | private void post(MastershipEvent event) { |
| 130 | if (event != null && eventDispatcher != null) { |
| 131 | eventDispatcher.post(event); |
| 132 | } |
| 133 | } |
Ayaka Koshibe | 3eed2b0 | 2014-09-23 13:28:05 -0700 | [diff] [blame] | 134 | |
Ayaka Koshibe | 1660969 | 2014-09-23 12:46:15 -0700 | [diff] [blame] | 135 | } |