Examples with MastershipEvent org.onosproject.mastership.MastershipEvent used on opensource projects

Example 6 with MastershipEvent

use of org.onosproject.mastership.MastershipEvent in project onos by opennetworkinglab.

the class SimpleVirtualMastershipStore method requestRole.

@Override
public CompletableFuture<MastershipRole> requestRole(NetworkId networkId, DeviceId deviceId) {
    // query+possible reelection
    NodeId node = clusterService.getLocalNode().id();
    MastershipRole role = getRole(networkId, node, deviceId);
    Map<DeviceId, NodeId> masterMap = getMasterMap(networkId);
    switch(role) {
        case MASTER:
            return CompletableFuture.completedFuture(MastershipRole.MASTER);
        case STANDBY:
            if (getMaster(networkId, deviceId) == null) {
                // no master => become master
                masterMap.put(deviceId, node);
                incrementTerm(networkId, deviceId);
                // remove from backup list
                removeFromBackups(networkId, deviceId, node);
                notifyDelegate(networkId, new MastershipEvent(MASTER_CHANGED, deviceId, getMastership(networkId, deviceId)));
                return CompletableFuture.completedFuture(MastershipRole.MASTER);
            }
            return CompletableFuture.completedFuture(MastershipRole.STANDBY);
        case NONE:
            if (getMaster(networkId, deviceId) == null) {
                // no master => become master
                masterMap.put(deviceId, node);
                incrementTerm(networkId, deviceId);
                notifyDelegate(networkId, new MastershipEvent(MASTER_CHANGED, deviceId, getMastership(networkId, deviceId)));
                return CompletableFuture.completedFuture(MastershipRole.MASTER);
            }
            // add to backup list
            if (addToBackup(networkId, deviceId, node)) {
                notifyDelegate(networkId, new MastershipEvent(BACKUPS_CHANGED, deviceId, getMastership(networkId, deviceId)));
            }
            return CompletableFuture.completedFuture(MastershipRole.STANDBY);
        default:
            log.warn("unknown Mastership Role {}", role);
    }
    return CompletableFuture.completedFuture(role);
}

Example 7 with MastershipEvent

use of org.onosproject.mastership.MastershipEvent in project onos by opennetworkinglab.

the class SimpleVirtualMastershipStore method relinquishRole.

@Override
public synchronized CompletableFuture<MastershipEvent> relinquishRole(NetworkId networkId, NodeId nodeId, DeviceId deviceId) {
    Map<DeviceId, NodeId> masterMap = getMasterMap(networkId);
    MastershipRole role = getRole(networkId, nodeId, deviceId);
    switch(role) {
        case MASTER:
            NodeId backup = reelect(networkId, deviceId, nodeId);
            masterMap.put(deviceId, backup);
            incrementTerm(networkId, deviceId);
            return CompletableFuture.completedFuture(new MastershipEvent(MASTER_CHANGED, deviceId, getMastership(networkId, deviceId)));
        case STANDBY:
            if (removeFromBackups(networkId, deviceId, nodeId)) {
                return CompletableFuture.completedFuture(new MastershipEvent(BACKUPS_CHANGED, deviceId, getMastership(networkId, deviceId)));
            }
            break;
        case NONE:
            break;
        default:
            log.warn("unknown Mastership Role {}", role);
    }
    return CompletableFuture.completedFuture(null);
}

Example 8 with MastershipEvent

use of org.onosproject.mastership.MastershipEvent in project onos by opennetworkinglab.

the class SimpleVirtualMastershipStore method setMaster.

@Override
public synchronized CompletableFuture<MastershipEvent> setMaster(NetworkId networkId, NodeId nodeId, DeviceId deviceId) {
    Map<DeviceId, NodeId> masterMap = getMasterMap(networkId);
    MastershipRole role = getRole(networkId, nodeId, deviceId);
    switch(role) {
        case MASTER:
            // no-op
            return CompletableFuture.completedFuture(null);
        case STANDBY:
        case NONE:
            NodeId prevMaster = masterMap.put(deviceId, nodeId);
            incrementTerm(networkId, deviceId);
            removeFromBackups(networkId, deviceId, nodeId);
            addToBackup(networkId, deviceId, prevMaster);
            break;
        default:
            log.warn("unknown Mastership Role {}", role);
            return null;
    }
    return CompletableFuture.completedFuture(new MastershipEvent(MASTER_CHANGED, deviceId, getMastership(networkId, deviceId)));
}

Example 9 with MastershipEvent

use of org.onosproject.mastership.MastershipEvent in project onos by opennetworkinglab.

the class SimpleVirtualMastershipStore method setStandby.

@Override
public CompletableFuture<MastershipEvent> setStandby(NetworkId networkId, NodeId nodeId, DeviceId deviceId) {
    Map<DeviceId, NodeId> masterMap = getMasterMap(networkId);
    MastershipRole role = getRole(networkId, nodeId, deviceId);
    switch(role) {
        case MASTER:
            NodeId backup = reelect(networkId, deviceId, nodeId);
            if (backup == null) {
                // no master alternative
                masterMap.remove(deviceId);
                // TODO: Should there be new event type for no MASTER?
                return CompletableFuture.completedFuture(new MastershipEvent(MASTER_CHANGED, deviceId, getMastership(networkId, deviceId)));
            } else {
                NodeId prevMaster = masterMap.put(deviceId, backup);
                incrementTerm(networkId, deviceId);
                addToBackup(networkId, deviceId, prevMaster);
                return CompletableFuture.completedFuture(new MastershipEvent(MASTER_CHANGED, deviceId, getMastership(networkId, deviceId)));
            }
        case STANDBY:
        case NONE:
            boolean modified = addToBackup(networkId, deviceId, nodeId);
            if (modified) {
                return CompletableFuture.completedFuture(new MastershipEvent(BACKUPS_CHANGED, deviceId, getMastership(networkId, deviceId)));
            }
            break;
        default:
            log.warn("unknown Mastership Role {}", role);
    }
    return null;
}

Example 10 with MastershipEvent

use of org.onosproject.mastership.MastershipEvent in project onos by opennetworkinglab.

the class SimpleMastershipStoreTest method unsetMaster.

@Test
public void unsetMaster() {
    // NONE - record backup but take no other action
    put(DID1, N1, false, false);
    sms.setStandby(N1, DID1);
    assertTrue("not backed up", sms.backups.get(DID1).contains(N1));
    int prev = sms.termMap.get(DID1).get();
    sms.setStandby(N1, DID1);
    assertEquals("term should not change", prev, sms.termMap.get(DID1).get());
    // no backup, MASTER
    put(DID1, N1, true, false);
    assertNull("expect no MASTER event", Futures.getUnchecked(sms.setStandby(N1, DID1)).roleInfo().master());
    assertNull("wrong node", sms.masterMap.get(DID1));
    // backup, switch
    sms.masterMap.clear();
    put(DID1, N1, true, true);
    put(DID1, N2, false, true);
    put(DID2, N2, true, true);
    MastershipEvent event = Futures.getUnchecked(sms.setStandby(N1, DID1));
    assertEquals("wrong event", MASTER_CHANGED, event.type());
    assertEquals("wrong master", N2, event.roleInfo().master());
}