Examples with AlivenessProtocolHandler org.opendaylight.genius.alivenessmonitor.protocols.AlivenessProtocolHandler used on opensource projects

Example 1 with AlivenessProtocolHandler

use of org.opendaylight.genius.alivenessmonitor.protocols.AlivenessProtocolHandler in project genius by opendaylight.

the class AlivenessMonitor method sendMonitorPacket.

private void sendMonitorPacket(final MonitoringInfo monitoringInfo) {
    // TODO: Handle interrupts
    final Long monitorId = monitoringInfo.getId();
    final String monitorKey = monitorIdKeyCache.getUnchecked(monitorId);
    if (monitorKey == null) {
        LOG.warn("No monitor Key associated with id {} to send the monitor packet", monitorId);
        return;
    } else {
        LOG.debug("Sending monitoring packet for key: {}", monitorKey);
    }
    final MonitorProfile profile;
    Optional<MonitorProfile> optProfile = getMonitorProfile(monitoringInfo.getProfileId());
    if (optProfile.isPresent()) {
        profile = optProfile.get();
    } else {
        LOG.warn("No monitor profile associated with id {}. " + "Could not send Monitor packet for monitor-id {}", monitoringInfo.getProfileId(), monitorId);
        return;
    }
    final Semaphore lock = lockMap.get(monitorKey);
    LOG.debug("Acquiring lock for monitor key : {} to send monitor packet", monitorKey);
    acquireLock(lock);
    final ReadWriteTransaction tx = dataBroker.newReadWriteTransaction();
    ListenableFuture<Optional<MonitoringState>> readResult = tx.read(LogicalDatastoreType.OPERATIONAL, getMonitorStateId(monitorKey));
    ListenableFuture<Void> writeResult = Futures.transformAsync(readResult, optState -> {
        if (optState.isPresent()) {
            MonitoringState state = optState.get();
            // Increase the request count
            Long requestCount = state.getRequestCount() + 1;
            // Check with the monitor window
            LivenessState currentLivenessState = state.getState();
            // Increase the pending response count
            long responsePendingCount = state.getResponsePendingCount();
            if (responsePendingCount < profile.getMonitorWindow()) {
                responsePendingCount = responsePendingCount + 1;
            }
            // Check with the failure threshold
            if (responsePendingCount >= profile.getFailureThreshold()) {
                // Change the state to down and notify
                if (currentLivenessState != LivenessState.Down) {
                    LOG.debug("Response pending Count: {}, Failure threshold: {} for monitorId {}", responsePendingCount, profile.getFailureThreshold(), state.getMonitorId());
                    LOG.info("Sending notification for monitor Id : {} with State: {}", state.getMonitorId(), LivenessState.Down);
                    publishNotification(monitorId, LivenessState.Down);
                    currentLivenessState = LivenessState.Down;
                    // Reset requestCount when state changes
                    // from UP to DOWN
                    requestCount = INITIAL_COUNT;
                }
            }
            // Update the ODS with state
            MonitoringState updatedState = new MonitoringStateBuilder().setMonitorKey(state.getMonitorKey()).setRequestCount(requestCount).setResponsePendingCount(responsePendingCount).setState(currentLivenessState).build();
            tx.merge(LogicalDatastoreType.OPERATIONAL, getMonitorStateId(state.getMonitorKey()), updatedState);
            return tx.submit();
        } else {
            // Close the transaction
            tx.submit();
            String errorMsg = String.format("Monitoring State associated with id %d is not present to send packet out.", monitorId);
            return Futures.immediateFailedFuture(new RuntimeException(errorMsg));
        }
    }, callbackExecutorService);
    Futures.addCallback(writeResult, new FutureCallback<Void>() {

        @Override
        public void onSuccess(Void noarg) {
            // invoke packetout on protocol handler
            AlivenessProtocolHandler<?> handler = alivenessProtocolHandlerRegistry.getOpt(profile.getProtocolType());
            if (handler != null) {
                LOG.debug("Sending monitoring packet {}", monitoringInfo);
                handler.startMonitoringTask(monitoringInfo);
            }
            releaseLock(lock);
        }

        @Override
        public void onFailure(Throwable error) {
            LOG.warn("Updating monitoring state for key: {} failed. Monitoring packet is not sent", monitorKey, error);
            releaseLock(lock);
        }
    }, callbackExecutorService);
}

Example 2 with AlivenessProtocolHandler

use of org.opendaylight.genius.alivenessmonitor.protocols.AlivenessProtocolHandler in project genius by opendaylight.

the class AlivenessMonitor method monitorStart.

@Override
public Future<RpcResult<MonitorStartOutput>> monitorStart(MonitorStartInput input) {
    RpcResultBuilder<MonitorStartOutput> rpcResultBuilder;
    final Config in = input.getConfig();
    Long profileId = in.getProfileId();
    LOG.debug("Monitor Start invoked with Config: {}, Profile Id: {}", in, profileId);
    try {
        if (in.getMode() != MonitoringMode.OneOne) {
            throw new UnsupportedConfigException("Unsupported Monitoring mode. Currently one-one mode is supported");
        }
        Optional<MonitorProfile> optProfile = SingleTransactionDataBroker.syncReadOptionalAndTreatReadFailedExceptionAsAbsentOptional(dataBroker, LogicalDatastoreType.OPERATIONAL, getMonitorProfileId(profileId));
        final MonitorProfile profile;
        if (!optProfile.isPresent()) {
            String errMsg = String.format("No monitoring profile associated with Id: %d", profileId);
            LOG.error("Monitor start failed. {}", errMsg);
            throw new RuntimeException(errMsg);
        } else {
            profile = optProfile.get();
        }
        final EtherTypes ethType = profile.getProtocolType();
        String interfaceName = null;
        EndpointType srcEndpointType = in.getSource().getEndpointType();
        if (srcEndpointType instanceof Interface) {
            Interface endPoint = (Interface) srcEndpointType;
            interfaceName = endPoint.getInterfaceName();
        } else {
            throw new UnsupportedConfigException("Unsupported source Endpoint type. Only Interface Endpoint currently supported for monitoring");
        }
        if (Strings.isNullOrEmpty(interfaceName)) {
            throw new RuntimeException("Interface Name not defined in the source Endpoint");
        }
        // Initially the support is for one monitoring per interface.
        // Revisit the retrieving monitor id logic when the multiple
        // monitoring for same interface is needed.
        EndpointType destEndpointType = null;
        if (in.getDestination() != null) {
            destEndpointType = in.getDestination().getEndpointType();
        }
        String idKey = getUniqueKey(interfaceName, ethType.toString(), srcEndpointType, destEndpointType);
        final long monitorId = getUniqueId(idKey);
        Optional<MonitoringInfo> optKey = SingleTransactionDataBroker.syncReadOptionalAndTreatReadFailedExceptionAsAbsentOptional(dataBroker, LogicalDatastoreType.OPERATIONAL, getMonitoringInfoId(monitorId));
        final AlivenessProtocolHandler<?> handler;
        if (optKey.isPresent()) {
            String message = String.format("Monitoring for the interface %s with this configuration " + "is already registered.", interfaceName);
            LOG.warn("Monitoring for the interface {} with this configuration is already registered.", interfaceName);
            MonitorStartOutput output = new MonitorStartOutputBuilder().setMonitorId(monitorId).build();
            rpcResultBuilder = RpcResultBuilder.success(output).withWarning(ErrorType.APPLICATION, "config-exists", message);
            return Futures.immediateFuture(rpcResultBuilder.build());
        } else {
            // Construct the monitor key
            final MonitoringInfo monitoringInfo = new MonitoringInfoBuilder().setId(monitorId).setMode(in.getMode()).setProfileId(profileId).setDestination(in.getDestination()).setSource(in.getSource()).build();
            // Construct the initial monitor state
            handler = alivenessProtocolHandlerRegistry.get(ethType);
            final String monitoringKey = handler.getUniqueMonitoringKey(monitoringInfo);
            MonitoringStateBuilder monitoringStateBuilder = new MonitoringStateBuilder().setMonitorKey(monitoringKey).setMonitorId(monitorId).setState(LivenessState.Unknown).setStatus(MonitorStatus.Started);
            if (ethType != EtherTypes.Bfd) {
                monitoringStateBuilder.setRequestCount(INITIAL_COUNT).setResponsePendingCount(INITIAL_COUNT);
            }
            MonitoringState monitoringState = monitoringStateBuilder.build();
            Futures.addCallback(txRunner.callWithNewWriteOnlyTransactionAndSubmit(tx -> {
                tx.put(LogicalDatastoreType.OPERATIONAL, getMonitoringInfoId(monitorId), monitoringInfo, CREATE_MISSING_PARENT);
                LOG.debug("adding oper monitoring info {}", monitoringInfo);
                tx.put(LogicalDatastoreType.OPERATIONAL, getMonitorStateId(monitoringKey), monitoringState, CREATE_MISSING_PARENT);
                LOG.debug("adding oper monitoring state {}", monitoringState);
                MonitoridKeyEntry mapEntry = new MonitoridKeyEntryBuilder().setMonitorId(monitorId).setMonitorKey(monitoringKey).build();
                tx.put(LogicalDatastoreType.OPERATIONAL, getMonitorMapId(monitorId), mapEntry, CREATE_MISSING_PARENT);
                LOG.debug("adding oper map entry {}", mapEntry);
            }), new FutureCallback<Void>() {

                @Override
                public void onFailure(Throwable error) {
                    String errorMsg = String.format("Adding Monitoring info: %s in Datastore failed", monitoringInfo);
                    LOG.warn("Adding Monitoring info: {} in Datastore failed", monitoringInfo, error);
                    throw new RuntimeException(errorMsg, error);
                }

                @Override
                public void onSuccess(Void noarg) {
                    lockMap.put(monitoringKey, new Semaphore(1, true));
                    if (ethType == EtherTypes.Bfd) {
                        handler.startMonitoringTask(monitoringInfo);
                        return;
                    }
                    // Schedule task
                    LOG.debug("Scheduling monitor task for config: {}", in);
                    scheduleMonitoringTask(monitoringInfo, profile.getMonitorInterval());
                }
            }, callbackExecutorService);
        }
        associateMonitorIdWithInterface(monitorId, interfaceName);
        MonitorStartOutput output = new MonitorStartOutputBuilder().setMonitorId(monitorId).build();
        rpcResultBuilder = RpcResultBuilder.success(output);
    } catch (UnsupportedConfigException e) {
        LOG.error("Start Monitoring Failed. ", e);
        rpcResultBuilder = RpcResultBuilder.<MonitorStartOutput>failed().withError(ErrorType.APPLICATION, e.getMessage(), e);
    }
    return Futures.immediateFuture(rpcResultBuilder.build());
}