Examples with StaticDifferenceDescriptor org.apache.nifi.registry.flow.diff.StaticDifferenceDescriptor used on opensource projects

Example 1 with StaticDifferenceDescriptor

use of org.apache.nifi.registry.flow.diff.StaticDifferenceDescriptor in project nifi by apache.

the class StandardProcessGroup method updateFlow.

@Override
public void updateFlow(final VersionedFlowSnapshot proposedSnapshot, final String componentIdSeed, final boolean verifyNotDirty, final boolean updateSettings, final boolean updateDescendantVersionedFlows) {
    writeLock.lock();
    try {
        verifyCanUpdate(proposedSnapshot, true, verifyNotDirty);
        final NiFiRegistryFlowMapper mapper = new NiFiRegistryFlowMapper();
        final VersionedProcessGroup versionedGroup = mapper.mapProcessGroup(this, controllerServiceProvider, flowController.getFlowRegistryClient(), true);
        final ComparableDataFlow localFlow = new StandardComparableDataFlow("Local Flow", versionedGroup);
        final ComparableDataFlow remoteFlow = new StandardComparableDataFlow("Remote Flow", proposedSnapshot.getFlowContents());
        final FlowComparator flowComparator = new StandardFlowComparator(remoteFlow, localFlow, getAncestorGroupServiceIds(), new StaticDifferenceDescriptor());
        final FlowComparison flowComparison = flowComparator.compare();
        final Set<String> updatedVersionedComponentIds = new HashSet<>();
        for (final FlowDifference diff : flowComparison.getDifferences()) {
            // Ignore these as local differences for now because we can't do anything with it
            if (diff.getDifferenceType() == DifferenceType.BUNDLE_CHANGED) {
                continue;
            }
            // and if so compare our VersionedControllerService to the existing service.
            if (diff.getDifferenceType() == DifferenceType.COMPONENT_ADDED) {
                final VersionedComponent component = diff.getComponentA() == null ? diff.getComponentB() : diff.getComponentA();
                if (ComponentType.CONTROLLER_SERVICE == component.getComponentType()) {
                    final ControllerServiceNode serviceNode = getVersionedControllerService(this, component.getIdentifier());
                    if (serviceNode != null) {
                        final VersionedControllerService versionedService = mapper.mapControllerService(serviceNode, controllerServiceProvider);
                        final Set<FlowDifference> differences = flowComparator.compareControllerServices(versionedService, (VersionedControllerService) component);
                        if (!differences.isEmpty()) {
                            updatedVersionedComponentIds.add(component.getIdentifier());
                        }
                        continue;
                    }
                }
            }
            final VersionedComponent component = diff.getComponentA() == null ? diff.getComponentB() : diff.getComponentA();
            updatedVersionedComponentIds.add(component.getIdentifier());
            if (component.getComponentType() == ComponentType.REMOTE_INPUT_PORT || component.getComponentType() == ComponentType.REMOTE_OUTPUT_PORT) {
                final String remoteGroupId = ((VersionedRemoteGroupPort) component).getRemoteGroupId();
                updatedVersionedComponentIds.add(remoteGroupId);
            }
        }
        if (LOG.isInfoEnabled()) {
            final String differencesByLine = flowComparison.getDifferences().stream().map(FlowDifference::toString).collect(Collectors.joining("\n"));
            LOG.info("Updating {} to {}; there are {} differences to take into account:\n{}", this, proposedSnapshot, flowComparison.getDifferences().size(), differencesByLine);
        }
        final Set<String> knownVariables = getKnownVariableNames();
        final StandardVersionControlInformation originalVci = this.versionControlInfo.get();
        try {
            updateProcessGroup(this, proposedSnapshot.getFlowContents(), componentIdSeed, updatedVersionedComponentIds, false, updateSettings, updateDescendantVersionedFlows, knownVariables);
        } catch (final Throwable t) {
            // As a result, it is safe to use the get() and then the set() methods of the AtomicReference without introducing the 'check-then-modify' problem.
            if (this.versionControlInfo.get() == null) {
                this.versionControlInfo.set(originalVci);
            }
            throw t;
        }
    } catch (final ProcessorInstantiationException pie) {
        throw new IllegalStateException("Failed to update flow", pie);
    } finally {
        writeLock.unlock();
    }
}

Example 2 with StaticDifferenceDescriptor

use of org.apache.nifi.registry.flow.diff.StaticDifferenceDescriptor in project nifi by apache.

the class StandardNiFiServiceFacade method getComponentsAffectedByVersionChange.

@Override
public Set<AffectedComponentEntity> getComponentsAffectedByVersionChange(final String processGroupId, final VersionedFlowSnapshot updatedSnapshot, final NiFiUser user) {
    final ProcessGroup group = processGroupDAO.getProcessGroup(processGroupId);
    final NiFiRegistryFlowMapper mapper = new NiFiRegistryFlowMapper();
    final VersionedProcessGroup localContents = mapper.mapProcessGroup(group, controllerFacade.getControllerServiceProvider(), flowRegistryClient, true);
    final ComparableDataFlow localFlow = new StandardComparableDataFlow("Local Flow", localContents);
    final ComparableDataFlow proposedFlow = new StandardComparableDataFlow("Versioned Flow", updatedSnapshot.getFlowContents());
    final Set<String> ancestorGroupServiceIds = getAncestorGroupServiceIds(group);
    final FlowComparator flowComparator = new StandardFlowComparator(localFlow, proposedFlow, ancestorGroupServiceIds, new StaticDifferenceDescriptor());
    final FlowComparison comparison = flowComparator.compare();
    final Set<AffectedComponentEntity> affectedComponents = comparison.getDifferences().stream().filter(// components that are added are not components that will be affected in the local flow.
    difference -> difference.getDifferenceType() != DifferenceType.COMPONENT_ADDED).filter(difference -> difference.getDifferenceType() != DifferenceType.BUNDLE_CHANGED).filter(FlowDifferenceFilters.FILTER_ADDED_REMOVED_REMOTE_PORTS).map(difference -> {
        final VersionedComponent localComponent = difference.getComponentA();
        final String state;
        switch(localComponent.getComponentType()) {
            case CONTROLLER_SERVICE:
                final String serviceId = ((InstantiatedVersionedControllerService) localComponent).getInstanceId();
                state = controllerServiceDAO.getControllerService(serviceId).getState().name();
                break;
            case PROCESSOR:
                final String processorId = ((InstantiatedVersionedProcessor) localComponent).getInstanceId();
                state = processorDAO.getProcessor(processorId).getPhysicalScheduledState().name();
                break;
            case REMOTE_INPUT_PORT:
                final InstantiatedVersionedRemoteGroupPort inputPort = (InstantiatedVersionedRemoteGroupPort) localComponent;
                state = remoteProcessGroupDAO.getRemoteProcessGroup(inputPort.getInstanceGroupId()).getInputPort(inputPort.getInstanceId()).getScheduledState().name();
                break;
            case REMOTE_OUTPUT_PORT:
                final InstantiatedVersionedRemoteGroupPort outputPort = (InstantiatedVersionedRemoteGroupPort) localComponent;
                state = remoteProcessGroupDAO.getRemoteProcessGroup(outputPort.getInstanceGroupId()).getOutputPort(outputPort.getInstanceId()).getScheduledState().name();
                break;
            default:
                state = null;
                break;
        }
        return createAffectedComponentEntity((InstantiatedVersionedComponent) localComponent, localComponent.getComponentType().name(), state, user);
    }).collect(Collectors.toCollection(HashSet::new));
    for (final FlowDifference difference : comparison.getDifferences()) {
        // Ignore these as local differences for now because we can't do anything with it
        if (difference.getDifferenceType() == DifferenceType.BUNDLE_CHANGED) {
            continue;
        }
        // Ignore differences for adding remote ports
        if (FlowDifferenceFilters.isAddedOrRemovedRemotePort(difference)) {
            continue;
        }
        final VersionedComponent localComponent = difference.getComponentA();
        if (localComponent == null) {
            continue;
        }
        // If any Process Group is removed, consider all components below that Process Group as an affected component
        if (difference.getDifferenceType() == DifferenceType.COMPONENT_REMOVED && localComponent.getComponentType() == org.apache.nifi.registry.flow.ComponentType.PROCESS_GROUP) {
            final String localGroupId = ((InstantiatedVersionedProcessGroup) localComponent).getInstanceId();
            final ProcessGroup localGroup = processGroupDAO.getProcessGroup(localGroupId);
            localGroup.findAllProcessors().stream().map(comp -> createAffectedComponentEntity(comp, user)).forEach(affectedComponents::add);
            localGroup.findAllFunnels().stream().map(comp -> createAffectedComponentEntity(comp, user)).forEach(affectedComponents::add);
            localGroup.findAllInputPorts().stream().map(comp -> createAffectedComponentEntity(comp, user)).forEach(affectedComponents::add);
            localGroup.findAllOutputPorts().stream().map(comp -> createAffectedComponentEntity(comp, user)).forEach(affectedComponents::add);
            localGroup.findAllRemoteProcessGroups().stream().flatMap(rpg -> Stream.concat(rpg.getInputPorts().stream(), rpg.getOutputPorts().stream())).map(comp -> createAffectedComponentEntity(comp, user)).forEach(affectedComponents::add);
            localGroup.findAllControllerServices().stream().map(comp -> createAffectedComponentEntity(comp, user)).forEach(affectedComponents::add);
        }
        if (localComponent.getComponentType() == org.apache.nifi.registry.flow.ComponentType.CONTROLLER_SERVICE) {
            final String serviceId = ((InstantiatedVersionedControllerService) localComponent).getInstanceId();
            final ControllerServiceNode serviceNode = controllerServiceDAO.getControllerService(serviceId);
            final List<ControllerServiceNode> referencingServices = serviceNode.getReferences().findRecursiveReferences(ControllerServiceNode.class);
            for (final ControllerServiceNode referencingService : referencingServices) {
                affectedComponents.add(createAffectedComponentEntity(referencingService, user));
            }
            final List<ProcessorNode> referencingProcessors = serviceNode.getReferences().findRecursiveReferences(ProcessorNode.class);
            for (final ProcessorNode referencingProcessor : referencingProcessors) {
                affectedComponents.add(createAffectedComponentEntity(referencingProcessor, user));
            }
        }
    }
    // Create a map of all connectable components by versioned component ID to the connectable component itself
    final Map<String, List<Connectable>> connectablesByVersionId = new HashMap<>();
    mapToConnectableId(group.findAllFunnels(), connectablesByVersionId);
    mapToConnectableId(group.findAllInputPorts(), connectablesByVersionId);
    mapToConnectableId(group.findAllOutputPorts(), connectablesByVersionId);
    mapToConnectableId(group.findAllProcessors(), connectablesByVersionId);
    final List<RemoteGroupPort> remotePorts = new ArrayList<>();
    for (final RemoteProcessGroup rpg : group.findAllRemoteProcessGroups()) {
        remotePorts.addAll(rpg.getInputPorts());
        remotePorts.addAll(rpg.getOutputPorts());
    }
    mapToConnectableId(remotePorts, connectablesByVersionId);
    // and the destination (if it exists in the flow currently).
    for (final FlowDifference difference : comparison.getDifferences()) {
        VersionedComponent component = difference.getComponentA();
        if (component == null) {
            component = difference.getComponentB();
        }
        if (component.getComponentType() != org.apache.nifi.registry.flow.ComponentType.CONNECTION) {
            continue;
        }
        final VersionedConnection connection = (VersionedConnection) component;
        final String sourceVersionedId = connection.getSource().getId();
        final List<Connectable> sources = connectablesByVersionId.get(sourceVersionedId);
        if (sources != null) {
            for (final Connectable source : sources) {
                affectedComponents.add(createAffectedComponentEntity(source, user));
            }
        }
        final String destinationVersionId = connection.getDestination().getId();
        final List<Connectable> destinations = connectablesByVersionId.get(destinationVersionId);
        if (destinations != null) {
            for (final Connectable destination : destinations) {
                affectedComponents.add(createAffectedComponentEntity(destination, user));
            }
        }
    }
    return affectedComponents;
}