Examples with BfdStatus org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.tunnel.attributes.BfdStatus used on opensource projects

Example 1 with BfdStatus

use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.tunnel.attributes.BfdStatus in project genius by opendaylight.

the class HwVtepTunnelsStateHandler method update.

@Override
public void update(@Nonnull Tunnels oldTunnelInfo, @Nonnull Tunnels updatedTunnelInfo) {
    List<BfdStatus> oldBfdStatus = oldTunnelInfo.getBfdStatus();
    List<BfdStatus> newBfdStatus = updatedTunnelInfo.getBfdStatus();
    LivenessState oldTunnelOpState = getTunnelOpState(oldBfdStatus);
    final LivenessState newTunnelOpState = getTunnelOpState(newBfdStatus);
    if (oldTunnelOpState == newTunnelOpState) {
        LOG.debug("Tunnel state of old tunnel {} and update tunnel {} are same", oldTunnelInfo, updatedTunnelInfo);
        return;
    }
    updatedTunnelInfo.getTunnelUuid();
    String interfaceName = "<TODO>";
    // TODO: find out the corresponding interface using tunnelIdentifier or
    // any attributes of tunnelInfo object
    final String monitorKey = getBfdMonitorKey(interfaceName);
    LOG.debug("Processing monitorKey: {} for received Tunnels update DCN", monitorKey);
    final Semaphore lock = alivenessMonitor.getLock(monitorKey);
    LOG.debug("Acquiring lock for monitor key : {} to process monitor DCN", monitorKey);
    alivenessMonitor.acquireLock(lock);
    final ReadWriteTransaction tx = dataBroker.newReadWriteTransaction();
    ListenableFuture<Optional<MonitoringState>> stateResult = tx.read(LogicalDatastoreType.OPERATIONAL, getMonitorStateId(monitorKey));
    Futures.addCallback(stateResult, new FutureCallback<Optional<MonitoringState>>() {

        @Override
        public void onSuccess(@Nonnull Optional<MonitoringState> optState) {
            if (optState.isPresent()) {
                final MonitoringState currentState = optState.get();
                if (currentState.getState() == newTunnelOpState) {
                    return;
                }
                final boolean stateChanged = true;
                final MonitoringState state = new MonitoringStateBuilder().setMonitorKey(monitorKey).setState(newTunnelOpState).build();
                tx.merge(LogicalDatastoreType.OPERATIONAL, getMonitorStateId(monitorKey), state);
                ListenableFuture<Void> writeResult = tx.submit();
                // WRITE Callback
                Futures.addCallback(writeResult, new FutureCallback<Void>() {

                    @Override
                    public void onSuccess(Void arg0) {
                        alivenessMonitor.releaseLock(lock);
                        if (stateChanged) {
                            // send notifications
                            LOG.info("Sending notification for monitor Id : {} with Current State: {}", currentState.getMonitorId(), newTunnelOpState);
                            alivenessMonitor.publishNotification(currentState.getMonitorId(), newTunnelOpState);
                        } else {
                            if (LOG.isTraceEnabled()) {
                                LOG.trace("Successful in writing monitoring state {} to ODS", state);
                            }
                        }
                    }

                    @Override
                    public void onFailure(@Nonnull Throwable error) {
                        alivenessMonitor.releaseLock(lock);
                        LOG.warn("Error in writing monitoring state : {} to Datastore", monitorKey, error);
                        if (LOG.isTraceEnabled()) {
                            LOG.trace("Error in writing monitoring state: {} to Datastore", state);
                        }
                    }
                }, MoreExecutors.directExecutor());
            } else {
                LOG.warn("Monitoring State not available for key: {} to process the Packet received", monitorKey);
                // Complete the transaction
                tx.submit();
                alivenessMonitor.releaseLock(lock);
            }
        }

        @Override
        public void onFailure(@Nonnull Throwable error) {
            LOG.error("Error when reading Monitoring State for key: {} to process the Packet received", monitorKey, error);
            // FIXME: Not sure if the transaction status is valid to cancel
            tx.cancel();
            alivenessMonitor.releaseLock(lock);
        }
    }, MoreExecutors.directExecutor());
}