Ayaka Koshibe | a7f044e | 2014-09-23 16:56:20 -0700 | [diff] [blame] | 1 | package org.onlab.onos.net.trivial.impl; |
| 2 | |
| 3 | import static org.slf4j.LoggerFactory.getLogger; |
| 4 | |
| 5 | import java.util.Collections; |
Ayaka Koshibe | b70d34b | 2014-09-25 15:43:01 -0700 | [diff] [blame] | 6 | import java.util.HashMap; |
Ayaka Koshibe | 406d010 | 2014-09-24 16:08:12 -0700 | [diff] [blame] | 7 | import java.util.HashSet; |
| 8 | import java.util.Map; |
Ayaka Koshibe | a7f044e | 2014-09-23 16:56:20 -0700 | [diff] [blame] | 9 | import java.util.Set; |
Ayaka Koshibe | b70d34b | 2014-09-25 15:43:01 -0700 | [diff] [blame] | 10 | import java.util.concurrent.atomic.AtomicInteger; |
Ayaka Koshibe | a7f044e | 2014-09-23 16:56:20 -0700 | [diff] [blame] | 11 | |
| 12 | import org.apache.felix.scr.annotations.Activate; |
| 13 | import org.apache.felix.scr.annotations.Component; |
| 14 | import org.apache.felix.scr.annotations.Deactivate; |
| 15 | import org.apache.felix.scr.annotations.Service; |
| 16 | import org.onlab.onos.cluster.ControllerNode; |
| 17 | import org.onlab.onos.cluster.DefaultControllerNode; |
| 18 | import org.onlab.onos.cluster.MastershipEvent; |
| 19 | import org.onlab.onos.cluster.MastershipStore; |
tom | f80c972 | 2014-09-24 14:49:18 -0700 | [diff] [blame] | 20 | import org.onlab.onos.cluster.MastershipStoreDelegate; |
Ayaka Koshibe | b70d34b | 2014-09-25 15:43:01 -0700 | [diff] [blame] | 21 | import org.onlab.onos.cluster.MastershipTerm; |
Ayaka Koshibe | a7f044e | 2014-09-23 16:56:20 -0700 | [diff] [blame] | 22 | import org.onlab.onos.cluster.NodeId; |
| 23 | import org.onlab.onos.net.DeviceId; |
| 24 | import org.onlab.onos.net.MastershipRole; |
tom | f80c972 | 2014-09-24 14:49:18 -0700 | [diff] [blame] | 25 | import org.onlab.onos.store.AbstractStore; |
Ayaka Koshibe | a7f044e | 2014-09-23 16:56:20 -0700 | [diff] [blame] | 26 | import org.onlab.packet.IpPrefix; |
| 27 | import org.slf4j.Logger; |
| 28 | |
| 29 | import static org.onlab.onos.cluster.MastershipEvent.Type.*; |
| 30 | |
| 31 | /** |
| 32 | * Manages inventory of controller mastership over devices using |
Ayaka Koshibe | 406d010 | 2014-09-24 16:08:12 -0700 | [diff] [blame] | 33 | * trivial, non-distributed in-memory structures implementation. |
Ayaka Koshibe | a7f044e | 2014-09-23 16:56:20 -0700 | [diff] [blame] | 34 | */ |
| 35 | @Component(immediate = true) |
| 36 | @Service |
tom | f80c972 | 2014-09-24 14:49:18 -0700 | [diff] [blame] | 37 | public class SimpleMastershipStore |
| 38 | extends AbstractStore<MastershipEvent, MastershipStoreDelegate> |
| 39 | implements MastershipStore { |
Ayaka Koshibe | a7f044e | 2014-09-23 16:56:20 -0700 | [diff] [blame] | 40 | |
Ayaka Koshibe | a7f044e | 2014-09-23 16:56:20 -0700 | [diff] [blame] | 41 | private final Logger log = getLogger(getClass()); |
| 42 | |
Ayaka Koshibe | 406d010 | 2014-09-24 16:08:12 -0700 | [diff] [blame] | 43 | public static final IpPrefix LOCALHOST = IpPrefix.valueOf("127.0.0.1"); |
Ayaka Koshibe | a7f044e | 2014-09-23 16:56:20 -0700 | [diff] [blame] | 44 | |
Ayaka Koshibe | 406d010 | 2014-09-24 16:08:12 -0700 | [diff] [blame] | 45 | private ControllerNode instance = |
| 46 | new DefaultControllerNode(new NodeId("local"), LOCALHOST); |
| 47 | |
| 48 | //devices mapped to their masters, to emulate multiple nodes |
Ayaka Koshibe | 3de43ca | 2014-09-26 16:40:23 -0700 | [diff] [blame] | 49 | protected final Map<DeviceId, NodeId> masterMap = new HashMap<>(); |
Ayaka Koshibe | b70d34b | 2014-09-25 15:43:01 -0700 | [diff] [blame] | 50 | protected final Map<DeviceId, AtomicInteger> termMap = new HashMap<>(); |
Ayaka Koshibe | 3de43ca | 2014-09-26 16:40:23 -0700 | [diff] [blame] | 51 | protected final Set<NodeId> masters = new HashSet<>(); |
Ayaka Koshibe | a7f044e | 2014-09-23 16:56:20 -0700 | [diff] [blame] | 52 | |
| 53 | @Activate |
| 54 | public void activate() { |
Ayaka Koshibe | a7f044e | 2014-09-23 16:56:20 -0700 | [diff] [blame] | 55 | log.info("Started"); |
| 56 | } |
| 57 | |
| 58 | @Deactivate |
| 59 | public void deactivate() { |
| 60 | log.info("Stopped"); |
| 61 | } |
| 62 | |
| 63 | @Override |
Ayaka Koshibe | 406d010 | 2014-09-24 16:08:12 -0700 | [diff] [blame] | 64 | public MastershipEvent setMaster(NodeId nodeId, DeviceId deviceId) { |
| 65 | |
| 66 | NodeId node = masterMap.get(deviceId); |
| 67 | if (node == null) { |
Ayaka Koshibe | b70d34b | 2014-09-25 15:43:01 -0700 | [diff] [blame] | 68 | synchronized (this) { |
| 69 | masterMap.put(deviceId, nodeId); |
| 70 | termMap.put(deviceId, new AtomicInteger()); |
| 71 | } |
Ayaka Koshibe | 406d010 | 2014-09-24 16:08:12 -0700 | [diff] [blame] | 72 | return new MastershipEvent(MASTER_CHANGED, deviceId, nodeId); |
Ayaka Koshibe | a7f044e | 2014-09-23 16:56:20 -0700 | [diff] [blame] | 73 | } |
Ayaka Koshibe | 406d010 | 2014-09-24 16:08:12 -0700 | [diff] [blame] | 74 | |
| 75 | if (node.equals(nodeId)) { |
| 76 | return null; |
| 77 | } else { |
Ayaka Koshibe | b70d34b | 2014-09-25 15:43:01 -0700 | [diff] [blame] | 78 | synchronized (this) { |
| 79 | masterMap.put(deviceId, nodeId); |
| 80 | termMap.get(deviceId).incrementAndGet(); |
| 81 | return new MastershipEvent(MASTER_CHANGED, deviceId, nodeId); |
| 82 | } |
Ayaka Koshibe | 406d010 | 2014-09-24 16:08:12 -0700 | [diff] [blame] | 83 | } |
Ayaka Koshibe | a7f044e | 2014-09-23 16:56:20 -0700 | [diff] [blame] | 84 | } |
| 85 | |
| 86 | @Override |
Ayaka Koshibe | a7f044e | 2014-09-23 16:56:20 -0700 | [diff] [blame] | 87 | public NodeId getMaster(DeviceId deviceId) { |
Ayaka Koshibe | 406d010 | 2014-09-24 16:08:12 -0700 | [diff] [blame] | 88 | return masterMap.get(deviceId); |
Ayaka Koshibe | a7f044e | 2014-09-23 16:56:20 -0700 | [diff] [blame] | 89 | } |
| 90 | |
| 91 | @Override |
| 92 | public Set<DeviceId> getDevices(NodeId nodeId) { |
Ayaka Koshibe | 406d010 | 2014-09-24 16:08:12 -0700 | [diff] [blame] | 93 | Set<DeviceId> ids = new HashSet<>(); |
| 94 | for (Map.Entry<DeviceId, NodeId> d : masterMap.entrySet()) { |
| 95 | if (d.getValue().equals(nodeId)) { |
| 96 | ids.add(d.getKey()); |
| 97 | } |
| 98 | } |
| 99 | return Collections.unmodifiableSet(ids); |
Ayaka Koshibe | a7f044e | 2014-09-23 16:56:20 -0700 | [diff] [blame] | 100 | } |
| 101 | |
| 102 | @Override |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 103 | public MastershipRole requestRole(DeviceId deviceId) { |
| 104 | return getRole(instance.id(), deviceId); |
| 105 | } |
| 106 | |
| 107 | @Override |
Ayaka Koshibe | a7f044e | 2014-09-23 16:56:20 -0700 | [diff] [blame] | 108 | public MastershipRole getRole(NodeId nodeId, DeviceId deviceId) { |
Ayaka Koshibe | 406d010 | 2014-09-24 16:08:12 -0700 | [diff] [blame] | 109 | NodeId node = masterMap.get(deviceId); |
| 110 | MastershipRole role; |
| 111 | if (node != null) { |
| 112 | if (node.equals(nodeId)) { |
| 113 | role = MastershipRole.MASTER; |
| 114 | } else { |
| 115 | role = MastershipRole.STANDBY; |
| 116 | } |
| 117 | } else { |
| 118 | //masterMap doesn't contain it. |
Ayaka Koshibe | a7f044e | 2014-09-23 16:56:20 -0700 | [diff] [blame] | 119 | role = MastershipRole.MASTER; |
Ayaka Koshibe | 406d010 | 2014-09-24 16:08:12 -0700 | [diff] [blame] | 120 | masterMap.put(deviceId, nodeId); |
Ayaka Koshibe | a7f044e | 2014-09-23 16:56:20 -0700 | [diff] [blame] | 121 | } |
| 122 | return role; |
| 123 | } |
| 124 | |
Ayaka Koshibe | b70d34b | 2014-09-25 15:43:01 -0700 | [diff] [blame] | 125 | @Override |
| 126 | public MastershipTerm getTermFor(DeviceId deviceId) { |
| 127 | if (masterMap.get(deviceId) == null) { |
| 128 | return null; |
| 129 | } |
| 130 | return MastershipTerm.of( |
| 131 | masterMap.get(deviceId), termMap.get(deviceId).get()); |
| 132 | } |
| 133 | |
Ayaka Koshibe | a7f044e | 2014-09-23 16:56:20 -0700 | [diff] [blame] | 134 | } |