Examples with RemoteProcessGroup org.apache.nifi.groups.RemoteProcessGroup used on opensource projects

Example 51 with RemoteProcessGroup

use of org.apache.nifi.groups.RemoteProcessGroup in project nifi by apache.

the class StandardNiFiServiceFacade method getRemoteProcessGroupStatus.

@Override
public RemoteProcessGroupStatusEntity getRemoteProcessGroupStatus(final String id) {
    final RemoteProcessGroup remoteProcessGroup = remoteProcessGroupDAO.getRemoteProcessGroup(id);
    final PermissionsDTO permissions = dtoFactory.createPermissionsDto(remoteProcessGroup);
    final RemoteProcessGroupStatusDTO dto = dtoFactory.createRemoteProcessGroupStatusDto(controllerFacade.getRemoteProcessGroupStatus(id));
    return entityFactory.createRemoteProcessGroupStatusEntity(dto, permissions);
}

Example 52 with RemoteProcessGroup

use of org.apache.nifi.groups.RemoteProcessGroup in project nifi by apache.

the class StandardFlowSerializer method addProcessGroup.

private void addProcessGroup(final Element parentElement, final ProcessGroup group, final String elementName, final ScheduledStateLookup scheduledStateLookup) {
    final Document doc = parentElement.getOwnerDocument();
    final Element element = doc.createElement(elementName);
    parentElement.appendChild(element);
    addTextElement(element, "id", group.getIdentifier());
    addTextElement(element, "versionedComponentId", group.getVersionedComponentId());
    addTextElement(element, "name", group.getName());
    addPosition(element, group.getPosition());
    addTextElement(element, "comment", group.getComments());
    final VersionControlInformation versionControlInfo = group.getVersionControlInformation();
    if (versionControlInfo != null) {
        final Element versionControlInfoElement = doc.createElement("versionControlInformation");
        addTextElement(versionControlInfoElement, "registryId", versionControlInfo.getRegistryIdentifier());
        addTextElement(versionControlInfoElement, "bucketId", versionControlInfo.getBucketIdentifier());
        addTextElement(versionControlInfoElement, "bucketName", versionControlInfo.getBucketName());
        addTextElement(versionControlInfoElement, "flowId", versionControlInfo.getFlowIdentifier());
        addTextElement(versionControlInfoElement, "flowName", versionControlInfo.getFlowName());
        addTextElement(versionControlInfoElement, "flowDescription", versionControlInfo.getFlowDescription());
        addTextElement(versionControlInfoElement, "version", versionControlInfo.getVersion());
        element.appendChild(versionControlInfoElement);
    }
    for (final ProcessorNode processor : group.getProcessors()) {
        addProcessor(element, processor, scheduledStateLookup);
    }
    if (group.isRootGroup()) {
        for (final Port port : group.getInputPorts()) {
            addRootGroupPort(element, (RootGroupPort) port, "inputPort", scheduledStateLookup);
        }
        for (final Port port : group.getOutputPorts()) {
            addRootGroupPort(element, (RootGroupPort) port, "outputPort", scheduledStateLookup);
        }
    } else {
        for (final Port port : group.getInputPorts()) {
            addPort(element, port, "inputPort", scheduledStateLookup);
        }
        for (final Port port : group.getOutputPorts()) {
            addPort(element, port, "outputPort", scheduledStateLookup);
        }
    }
    for (final Label label : group.getLabels()) {
        addLabel(element, label);
    }
    for (final Funnel funnel : group.getFunnels()) {
        addFunnel(element, funnel);
    }
    for (final ProcessGroup childGroup : group.getProcessGroups()) {
        addProcessGroup(element, childGroup, "processGroup", scheduledStateLookup);
    }
    for (final RemoteProcessGroup remoteRef : group.getRemoteProcessGroups()) {
        addRemoteProcessGroup(element, remoteRef, scheduledStateLookup);
    }
    for (final Connection connection : group.getConnections()) {
        addConnection(element, connection);
    }
    for (final ControllerServiceNode service : group.getControllerServices(false)) {
        addControllerService(element, service);
    }
    for (final Template template : group.getTemplates()) {
        addTemplate(element, template);
    }
    final VariableRegistry variableRegistry = group.getVariableRegistry();
    for (final Map.Entry<VariableDescriptor, String> entry : variableRegistry.getVariableMap().entrySet()) {
        addVariable(element, entry.getKey().getName(), entry.getValue());
    }
}

Example 53 with RemoteProcessGroup

use of org.apache.nifi.groups.RemoteProcessGroup in project nifi by apache.

the class SnippetAuditor method removeSnippetAdvice.

/**
 * Audits bulk delete.
 *
 * @param proceedingJoinPoint join point
 * @param snippetId snippet id
 * @param snippetDAO dao
 * @throws Throwable ex
 */
@Around("within(org.apache.nifi.web.dao.SnippetDAO+) && " + "execution(void deleteSnippetComponents(java.lang.String)) && " + "args(snippetId) && " + "target(snippetDAO)")
public void removeSnippetAdvice(ProceedingJoinPoint proceedingJoinPoint, String snippetId, SnippetDAO snippetDAO) throws Throwable {
    // get the snippet before removing it
    final Snippet snippet = snippetDAO.getSnippet(snippetId);
    // locate all the components being removed
    final Set<Funnel> funnels = new HashSet<>();
    for (String id : snippet.getFunnels().keySet()) {
        funnels.add(funnelDAO.getFunnel(id));
    }
    final Set<Port> inputPorts = new HashSet<>();
    for (String id : snippet.getInputPorts().keySet()) {
        inputPorts.add(inputPortDAO.getPort(id));
    }
    final Set<Port> outputPorts = new HashSet<>();
    for (String id : snippet.getOutputPorts().keySet()) {
        outputPorts.add(outputPortDAO.getPort(id));
    }
    final Set<RemoteProcessGroup> remoteProcessGroups = new HashSet<>();
    for (String id : snippet.getRemoteProcessGroups().keySet()) {
        remoteProcessGroups.add(remoteProcessGroupDAO.getRemoteProcessGroup(id));
    }
    final Set<ProcessGroup> processGroups = new HashSet<>();
    final ProcessGroupDAO processGroupDAO = getProcessGroupDAO();
    for (String id : snippet.getProcessGroups().keySet()) {
        processGroups.add(processGroupDAO.getProcessGroup(id));
    }
    final Set<ProcessorNode> processors = new HashSet<>();
    for (String id : snippet.getProcessors().keySet()) {
        processors.add(processorDAO.getProcessor(id));
    }
    final Set<Connection> connections = new HashSet<>();
    for (String id : snippet.getConnections().keySet()) {
        connections.add(connectionDAO.getConnection(id));
    }
    // remove the snippet and components
    proceedingJoinPoint.proceed();
    final Collection<Action> actions = new ArrayList<>();
    // audit funnel removal
    for (Funnel funnel : funnels) {
        final Action action = funnelAuditor.generateAuditRecord(funnel, Operation.Remove);
        if (action != null) {
            actions.add(action);
        }
    }
    for (Port inputPort : inputPorts) {
        final Action action = portAuditor.generateAuditRecord(inputPort, Operation.Remove);
        if (action != null) {
            actions.add(action);
        }
    }
    for (Port outputPort : outputPorts) {
        final Action action = portAuditor.generateAuditRecord(outputPort, Operation.Remove);
        if (action != null) {
            actions.add(action);
        }
    }
    for (RemoteProcessGroup remoteProcessGroup : remoteProcessGroups) {
        final Action action = remoteProcessGroupAuditor.generateAuditRecord(remoteProcessGroup, Operation.Remove);
        if (action != null) {
            actions.add(action);
        }
    }
    for (ProcessGroup processGroup : processGroups) {
        final Action action = processGroupAuditor.generateAuditRecord(processGroup, Operation.Remove);
        if (action != null) {
            actions.add(action);
        }
    }
    for (ProcessorNode processor : processors) {
        final Action action = processorAuditor.generateAuditRecord(processor, Operation.Remove);
        if (action != null) {
            actions.add(action);
        }
    }
    for (Connection connection : connections) {
        final ConnectDetails connectDetails = relationshipAuditor.createConnectDetails(connection, connection.getRelationships());
        final Action action = relationshipAuditor.generateAuditRecordForConnection(connection, Operation.Disconnect, connectDetails);
        if (action != null) {
            actions.add(action);
        }
    }
    // save the actions
    if (CollectionUtils.isNotEmpty(actions)) {
        saveActions(actions, logger);
    }
}

Example 54 with RemoteProcessGroup

use of org.apache.nifi.groups.RemoteProcessGroup in project nifi by apache.

the class FingerprintFactoryTest method testRemoteProcessGroupFingerprintRaw.

@Test
public void testRemoteProcessGroupFingerprintRaw() throws Exception {
    // Fill out every configuration.
    final RemoteProcessGroup component = mock(RemoteProcessGroup.class);
    when(component.getName()).thenReturn("name");
    when(component.getIdentifier()).thenReturn("id");
    when(component.getPosition()).thenReturn(new Position(10.5, 20.3));
    when(component.getTargetUri()).thenReturn("http://node1:8080/nifi");
    when(component.getTargetUris()).thenReturn("http://node1:8080/nifi, http://node2:8080/nifi");
    when(component.getNetworkInterface()).thenReturn("eth0");
    when(component.getComments()).thenReturn("comment");
    when(component.getCommunicationsTimeout()).thenReturn("10 sec");
    when(component.getYieldDuration()).thenReturn("30 sec");
    when(component.getTransportProtocol()).thenReturn(SiteToSiteTransportProtocol.RAW);
    when(component.getProxyHost()).thenReturn(null);
    when(component.getProxyPort()).thenReturn(null);
    when(component.getProxyUser()).thenReturn(null);
    when(component.getProxyPassword()).thenReturn(null);
    when(component.getVersionedComponentId()).thenReturn(Optional.empty());
    // Assert fingerprints with expected one.
    final String expected = "id" + "NO_VALUE" + "http://node1:8080/nifi, http://node2:8080/nifi" + "eth0" + "10 sec" + "30 sec" + "RAW" + "NO_VALUE" + "NO_VALUE" + "NO_VALUE" + "NO_VALUE";
    final Element rootElement = serializeElement(encryptor, RemoteProcessGroup.class, component, "addRemoteProcessGroup", IDENTITY_LOOKUP);
    final Element componentElement = (Element) rootElement.getElementsByTagName("remoteProcessGroup").item(0);
    assertEquals(expected, fingerprint("addRemoteProcessGroupFingerprint", Element.class, componentElement));
}

Example 55 with RemoteProcessGroup

use of org.apache.nifi.groups.RemoteProcessGroup in project nifi by apache.

the class StandardFlowSynchronizer method sync.

@Override
public void sync(final FlowController controller, final DataFlow proposedFlow, final StringEncryptor encryptor) throws FlowSerializationException, UninheritableFlowException, FlowSynchronizationException, MissingBundleException {
    // handle corner cases involving no proposed flow
    if (proposedFlow == null) {
        if (controller.getGroup(controller.getRootGroupId()).isEmpty()) {
            // no sync to perform
            return;
        } else {
            throw new UninheritableFlowException("Proposed configuration is empty, but the controller contains a data flow.");
        }
    }
    // determine if the controller already had flow sync'd to it
    final boolean flowAlreadySynchronized = controller.isFlowSynchronized();
    logger.debug("Synching FlowController with proposed flow: Controller is Already Synchronized = {}", flowAlreadySynchronized);
    // serialize controller state to bytes
    final byte[] existingFlow;
    final boolean existingFlowEmpty;
    try {
        if (flowAlreadySynchronized) {
            existingFlow = toBytes(controller);
            existingFlowEmpty = controller.getGroup(controller.getRootGroupId()).isEmpty() && controller.getAllReportingTasks().isEmpty() && controller.getAllControllerServices().isEmpty() && controller.getFlowRegistryClient().getRegistryIdentifiers().isEmpty();
        } else {
            existingFlow = readFlowFromDisk();
            if (existingFlow == null || existingFlow.length == 0) {
                existingFlowEmpty = true;
            } else {
                final Document document = parseFlowBytes(existingFlow);
                final Element rootElement = document.getDocumentElement();
                final FlowEncodingVersion encodingVersion = FlowEncodingVersion.parse(rootElement);
                logger.trace("Setting controller thread counts");
                final Integer maxThreadCount = getInteger(rootElement, "maxThreadCount");
                if (maxThreadCount == null) {
                    controller.setMaxTimerDrivenThreadCount(getInt(rootElement, "maxTimerDrivenThreadCount"));
                    controller.setMaxEventDrivenThreadCount(getInt(rootElement, "maxEventDrivenThreadCount"));
                } else {
                    controller.setMaxTimerDrivenThreadCount(maxThreadCount * 2 / 3);
                    controller.setMaxEventDrivenThreadCount(maxThreadCount / 3);
                }
                final Element reportingTasksElement = DomUtils.getChild(rootElement, "reportingTasks");
                final List<Element> taskElements;
                if (reportingTasksElement == null) {
                    taskElements = Collections.emptyList();
                } else {
                    taskElements = DomUtils.getChildElementsByTagName(reportingTasksElement, "reportingTask");
                }
                final Element controllerServicesElement = DomUtils.getChild(rootElement, "controllerServices");
                final List<Element> unrootedControllerServiceElements;
                if (controllerServicesElement == null) {
                    unrootedControllerServiceElements = Collections.emptyList();
                } else {
                    unrootedControllerServiceElements = DomUtils.getChildElementsByTagName(controllerServicesElement, "controllerService");
                }
                final boolean registriesPresent;
                final Element registriesElement = DomUtils.getChild(rootElement, "registries");
                if (registriesElement == null) {
                    registriesPresent = false;
                } else {
                    final List<Element> flowRegistryElems = DomUtils.getChildElementsByTagName(registriesElement, "flowRegistry");
                    registriesPresent = !flowRegistryElems.isEmpty();
                }
                logger.trace("Parsing process group from DOM");
                final Element rootGroupElement = (Element) rootElement.getElementsByTagName("rootGroup").item(0);
                final ProcessGroupDTO rootGroupDto = FlowFromDOMFactory.getProcessGroup(null, rootGroupElement, encryptor, encodingVersion);
                existingFlowEmpty = taskElements.isEmpty() && unrootedControllerServiceElements.isEmpty() && isEmpty(rootGroupDto) && !registriesPresent;
                logger.debug("Existing Flow Empty = {}", existingFlowEmpty);
            }
        }
    } catch (final IOException e) {
        throw new FlowSerializationException(e);
    }
    logger.trace("Exporting snippets from controller");
    final byte[] existingSnippets = controller.getSnippetManager().export();
    logger.trace("Getting Authorizer fingerprint from controller");
    final byte[] existingAuthFingerprint;
    final ManagedAuthorizer managedAuthorizer;
    final Authorizer authorizer = controller.getAuthorizer();
    if (AuthorizerCapabilityDetection.isManagedAuthorizer(authorizer)) {
        managedAuthorizer = (ManagedAuthorizer) authorizer;
        existingAuthFingerprint = managedAuthorizer.getFingerprint().getBytes(StandardCharsets.UTF_8);
    } else {
        existingAuthFingerprint = null;
        managedAuthorizer = null;
    }
    final Set<String> missingComponents = new HashSet<>();
    controller.getAllControllerServices().stream().filter(cs -> cs.isExtensionMissing()).forEach(cs -> missingComponents.add(cs.getIdentifier()));
    controller.getAllReportingTasks().stream().filter(r -> r.isExtensionMissing()).forEach(r -> missingComponents.add(r.getIdentifier()));
    controller.getRootGroup().findAllProcessors().stream().filter(p -> p.isExtensionMissing()).forEach(p -> missingComponents.add(p.getIdentifier()));
    final DataFlow existingDataFlow = new StandardDataFlow(existingFlow, existingSnippets, existingAuthFingerprint, missingComponents);
    Document configuration = null;
    // check that the proposed flow is inheritable by the controller
    try {
        if (existingFlowEmpty) {
            configuration = parseFlowBytes(proposedFlow.getFlow());
            if (configuration != null) {
                logger.trace("Checking bundle compatibility");
                checkBundleCompatibility(configuration);
            }
        } else {
            logger.trace("Checking flow inheritability");
            final String problemInheritingFlow = checkFlowInheritability(existingDataFlow, proposedFlow, controller);
            if (problemInheritingFlow != null) {
                throw new UninheritableFlowException("Proposed configuration is not inheritable by the flow controller because of flow differences: " + problemInheritingFlow);
            }
        }
    } catch (final FingerprintException fe) {
        throw new FlowSerializationException("Failed to generate flow fingerprints", fe);
    }
    logger.trace("Checking missing component inheritability");
    final String problemInheritingMissingComponents = checkMissingComponentsInheritability(existingDataFlow, proposedFlow);
    if (problemInheritingMissingComponents != null) {
        throw new UninheritableFlowException("Proposed Flow is not inheritable by the flow controller because of differences in missing components: " + problemInheritingMissingComponents);
    }
    logger.trace("Checking authorizer inheritability");
    final AuthorizerInheritability authInheritability = checkAuthorizerInheritability(authorizer, existingDataFlow, proposedFlow);
    if (!authInheritability.isInheritable() && authInheritability.getReason() != null) {
        throw new UninheritableFlowException("Proposed Authorizer is not inheritable by the flow controller because of Authorizer differences: " + authInheritability.getReason());
    }
    // create document by parsing proposed flow bytes
    logger.trace("Parsing proposed flow bytes as DOM document");
    if (configuration == null) {
        configuration = parseFlowBytes(proposedFlow.getFlow());
    }
    // attempt to sync controller with proposed flow
    try {
        if (configuration != null) {
            synchronized (configuration) {
                // get the root element
                final Element rootElement = (Element) configuration.getElementsByTagName("flowController").item(0);
                final FlowEncodingVersion encodingVersion = FlowEncodingVersion.parse(rootElement);
                // set controller config
                logger.trace("Updating flow config");
                final Integer maxThreadCount = getInteger(rootElement, "maxThreadCount");
                if (maxThreadCount == null) {
                    controller.setMaxTimerDrivenThreadCount(getInt(rootElement, "maxTimerDrivenThreadCount"));
                    controller.setMaxEventDrivenThreadCount(getInt(rootElement, "maxEventDrivenThreadCount"));
                } else {
                    controller.setMaxTimerDrivenThreadCount(maxThreadCount * 2 / 3);
                    controller.setMaxEventDrivenThreadCount(maxThreadCount / 3);
                }
                // get the root group XML element
                final Element rootGroupElement = (Element) rootElement.getElementsByTagName("rootGroup").item(0);
                if (!flowAlreadySynchronized || existingFlowEmpty) {
                    final Element registriesElement = DomUtils.getChild(rootElement, "registries");
                    if (registriesElement != null) {
                        final List<Element> flowRegistryElems = DomUtils.getChildElementsByTagName(registriesElement, "flowRegistry");
                        for (final Element flowRegistryElement : flowRegistryElems) {
                            final String registryId = getString(flowRegistryElement, "id");
                            final String registryName = getString(flowRegistryElement, "name");
                            final String registryUrl = getString(flowRegistryElement, "url");
                            final String description = getString(flowRegistryElement, "description");
                            final FlowRegistryClient client = controller.getFlowRegistryClient();
                            client.addFlowRegistry(registryId, registryName, registryUrl, description);
                        }
                    }
                }
                // if this controller isn't initialized or its empty, add the root group, otherwise update
                final ProcessGroup rootGroup;
                if (!flowAlreadySynchronized || existingFlowEmpty) {
                    logger.trace("Adding root process group");
                    rootGroup = addProcessGroup(controller, /* parent group */
                    null, rootGroupElement, encryptor, encodingVersion);
                } else {
                    logger.trace("Updating root process group");
                    rootGroup = updateProcessGroup(controller, /* parent group */
                    null, rootGroupElement, encryptor, encodingVersion);
                }
                rootGroup.findAllRemoteProcessGroups().forEach(RemoteProcessGroup::initialize);
                // If there are any Templates that do not exist in the Proposed Flow that do exist in the 'existing flow', we need
                // to ensure that we also add those to the appropriate Process Groups, so that we don't lose them.
                final Document existingFlowConfiguration = parseFlowBytes(existingFlow);
                if (existingFlowConfiguration != null) {
                    final Element existingRootElement = (Element) existingFlowConfiguration.getElementsByTagName("flowController").item(0);
                    if (existingRootElement != null) {
                        final Element existingRootGroupElement = (Element) existingRootElement.getElementsByTagName("rootGroup").item(0);
                        if (existingRootElement != null) {
                            final FlowEncodingVersion existingEncodingVersion = FlowEncodingVersion.parse(existingFlowConfiguration.getDocumentElement());
                            addLocalTemplates(existingRootGroupElement, rootGroup, existingEncodingVersion);
                        }
                    }
                }
                // get all the reporting task elements
                final Element reportingTasksElement = DomUtils.getChild(rootElement, "reportingTasks");
                final List<Element> reportingTaskElements = new ArrayList<>();
                if (reportingTasksElement != null) {
                    reportingTaskElements.addAll(DomUtils.getChildElementsByTagName(reportingTasksElement, "reportingTask"));
                }
                // get/create all the reporting task nodes and DTOs, but don't apply their scheduled state yet
                final Map<ReportingTaskNode, ReportingTaskDTO> reportingTaskNodesToDTOs = new HashMap<>();
                for (final Element taskElement : reportingTaskElements) {
                    final ReportingTaskDTO dto = FlowFromDOMFactory.getReportingTask(taskElement, encryptor);
                    final ReportingTaskNode reportingTask = getOrCreateReportingTask(controller, dto, flowAlreadySynchronized, existingFlowEmpty);
                    reportingTaskNodesToDTOs.put(reportingTask, dto);
                }
                final Element controllerServicesElement = DomUtils.getChild(rootElement, "controllerServices");
                if (controllerServicesElement != null) {
                    final List<Element> serviceElements = DomUtils.getChildElementsByTagName(controllerServicesElement, "controllerService");
                    if (!flowAlreadySynchronized || existingFlowEmpty) {
                        // If the encoding version is null, we are loading a flow from NiFi 0.x, where Controller
                        // Services could not be scoped by Process Group. As a result, we want to move the Process Groups
                        // to the root Group. Otherwise, we want to use a null group, which indicates a Controller-level
                        // Controller Service.
                        final ProcessGroup group = (encodingVersion == null) ? rootGroup : null;
                        final Map<ControllerServiceNode, Element> controllerServices = ControllerServiceLoader.loadControllerServices(serviceElements, controller, group, encryptor);
                        // reference them, and if so we need to clone the CS and update the reporting task reference
                        if (group != null) {
                            // find all the controller service ids referenced by reporting tasks
                            final Set<String> controllerServicesInReportingTasks = reportingTaskNodesToDTOs.keySet().stream().flatMap(r -> r.getProperties().entrySet().stream()).filter(e -> e.getKey().getControllerServiceDefinition() != null).map(e -> e.getValue()).collect(Collectors.toSet());
                            // find the controller service nodes for each id referenced by a reporting task
                            final Set<ControllerServiceNode> controllerServicesToClone = controllerServices.keySet().stream().filter(cs -> controllerServicesInReportingTasks.contains(cs.getIdentifier())).collect(Collectors.toSet());
                            // clone the controller services and map the original id to the clone
                            final Map<String, ControllerServiceNode> controllerServiceMapping = new HashMap<>();
                            for (ControllerServiceNode controllerService : controllerServicesToClone) {
                                final ControllerServiceNode clone = ControllerServiceLoader.cloneControllerService(controller, controllerService);
                                controller.addRootControllerService(clone);
                                controllerServiceMapping.put(controllerService.getIdentifier(), clone);
                            }
                            // update the reporting tasks to reference the cloned controller services
                            updateReportingTaskControllerServices(reportingTaskNodesToDTOs.keySet(), controllerServiceMapping);
                            // enable all the cloned controller services
                            ControllerServiceLoader.enableControllerServices(controllerServiceMapping.values(), controller, autoResumeState);
                        }
                        // enable all the original controller services
                        ControllerServiceLoader.enableControllerServices(controllerServices, controller, encryptor, autoResumeState);
                    }
                }
                scaleRootGroup(rootGroup, encodingVersion);
                // now that controller services are loaded and enabled we can apply the scheduled state to each reporting task
                for (Map.Entry<ReportingTaskNode, ReportingTaskDTO> entry : reportingTaskNodesToDTOs.entrySet()) {
                    applyReportingTaskScheduleState(controller, entry.getValue(), entry.getKey(), flowAlreadySynchronized, existingFlowEmpty);
                }
            }
        }
        // clear the snippets that are currently in memory
        logger.trace("Clearing existing snippets");
        final SnippetManager snippetManager = controller.getSnippetManager();
        snippetManager.clear();
        // if proposed flow has any snippets, load them
        logger.trace("Loading proposed snippets");
        final byte[] proposedSnippets = proposedFlow.getSnippets();
        if (proposedSnippets != null && proposedSnippets.length > 0) {
            for (final StandardSnippet snippet : SnippetManager.parseBytes(proposedSnippets)) {
                snippetManager.addSnippet(snippet);
            }
        }
        // if auths are inheritable and we have a policy based authorizer, then inherit
        if (authInheritability.isInheritable() && managedAuthorizer != null) {
            logger.trace("Inheriting authorizations");
            final String proposedAuthFingerprint = new String(proposedFlow.getAuthorizerFingerprint(), StandardCharsets.UTF_8);
            managedAuthorizer.inheritFingerprint(proposedAuthFingerprint);
        }
        logger.debug("Finished syncing flows");
    } catch (final Exception ex) {
        throw new FlowSynchronizationException(ex);
    }
}