Search in sources :

Example 26 with FlowFileQueue

use of org.apache.nifi.controller.queue.FlowFileQueue in project nifi by apache.

the class FlowController method initializeFlow.

public void initializeFlow() throws IOException {
    writeLock.lock();
    try {
        // get all connections/queues and recover from swap files.
        final List<Connection> connections = getGroup(getRootGroupId()).findAllConnections();
        long maxIdFromSwapFiles = -1L;
        if (flowFileRepository.isVolatile()) {
            for (final Connection connection : connections) {
                final FlowFileQueue queue = connection.getFlowFileQueue();
                queue.purgeSwapFiles();
            }
        } else {
            for (final Connection connection : connections) {
                final FlowFileQueue queue = connection.getFlowFileQueue();
                final SwapSummary swapSummary = queue.recoverSwappedFlowFiles();
                if (swapSummary != null) {
                    final Long maxFlowFileId = swapSummary.getMaxFlowFileId();
                    if (maxFlowFileId != null && maxFlowFileId > maxIdFromSwapFiles) {
                        maxIdFromSwapFiles = maxFlowFileId;
                    }
                    for (final ResourceClaim resourceClaim : swapSummary.getResourceClaims()) {
                        resourceClaimManager.incrementClaimantCount(resourceClaim);
                    }
                }
            }
        }
        flowFileRepository.loadFlowFiles(this, maxIdFromSwapFiles + 1);
        // Begin expiring FlowFiles that are old
        final RepositoryContextFactory contextFactory = new RepositoryContextFactory(contentRepository, flowFileRepository, flowFileEventRepository, counterRepositoryRef.get(), provenanceRepository);
        processScheduler.scheduleFrameworkTask(new ExpireFlowFiles(this, contextFactory), "Expire FlowFiles", 30L, 30L, TimeUnit.SECONDS);
        // now that we've loaded the FlowFiles, this has restored our ContentClaims' states, so we can tell the
        // ContentRepository to purge superfluous files
        contentRepository.cleanup();
        for (final RemoteSiteListener listener : externalSiteListeners) {
            listener.start();
        }
        notifyComponentsConfigurationRestored();
        timerDrivenEngineRef.get().scheduleWithFixedDelay(new Runnable() {

            @Override
            public void run() {
                try {
                    updateRemoteProcessGroups();
                } catch (final Throwable t) {
                    LOG.warn("Unable to update Remote Process Groups due to " + t);
                    if (LOG.isDebugEnabled()) {
                        LOG.warn("", t);
                    }
                }
            }
        }, 0L, 30L, TimeUnit.SECONDS);
        timerDrivenEngineRef.get().scheduleWithFixedDelay(new Runnable() {

            @Override
            public void run() {
                final ProcessGroup rootGroup = getRootGroup();
                final List<ProcessGroup> allGroups = rootGroup.findAllProcessGroups();
                allGroups.add(rootGroup);
                for (final ProcessGroup group : allGroups) {
                    try {
                        group.synchronizeWithFlowRegistry(flowRegistryClient);
                    } catch (final Exception e) {
                        LOG.error("Failed to synchronize {} with Flow Registry", group, e);
                    }
                }
            }
        }, 5, 60, TimeUnit.SECONDS);
        initialized.set(true);
    } finally {
        writeLock.unlock();
    }
}
Also used : Connection(org.apache.nifi.connectable.Connection) VersionedConnection(org.apache.nifi.registry.flow.VersionedConnection) StandardConnection(org.apache.nifi.connectable.StandardConnection) SwapSummary(org.apache.nifi.controller.repository.SwapSummary) ExpireFlowFiles(org.apache.nifi.controller.tasks.ExpireFlowFiles) FlowFileQueue(org.apache.nifi.controller.queue.FlowFileQueue) ConfigException(org.apache.zookeeper.server.quorum.QuorumPeerConfig.ConfigException) IOException(java.io.IOException) ProcessorInstantiationException(org.apache.nifi.controller.exception.ProcessorInstantiationException) ComponentLifeCycleException(org.apache.nifi.controller.exception.ComponentLifeCycleException) UnknownServiceAddressException(org.apache.nifi.cluster.protocol.UnknownServiceAddressException) FlowSerializationException(org.apache.nifi.controller.serialization.FlowSerializationException) ResourceNotFoundException(org.apache.nifi.web.ResourceNotFoundException) InitializationException(org.apache.nifi.reporting.InitializationException) ReportingTaskInstantiationException(org.apache.nifi.controller.reporting.ReportingTaskInstantiationException) CommunicationsException(org.apache.nifi.controller.exception.CommunicationsException) FlowSynchronizationException(org.apache.nifi.controller.serialization.FlowSynchronizationException) ControllerServiceInstantiationException(org.apache.nifi.controller.exception.ControllerServiceInstantiationException) SocketRemoteSiteListener(org.apache.nifi.remote.SocketRemoteSiteListener) RemoteSiteListener(org.apache.nifi.remote.RemoteSiteListener) HttpRemoteSiteListener(org.apache.nifi.remote.HttpRemoteSiteListener) RepositoryContextFactory(org.apache.nifi.controller.scheduling.RepositoryContextFactory) VersionedProcessGroup(org.apache.nifi.registry.flow.VersionedProcessGroup) StandardProcessGroup(org.apache.nifi.groups.StandardProcessGroup) RemoteProcessGroup(org.apache.nifi.groups.RemoteProcessGroup) ProcessGroup(org.apache.nifi.groups.ProcessGroup) StandardRemoteProcessGroup(org.apache.nifi.remote.StandardRemoteProcessGroup) ResourceClaim(org.apache.nifi.controller.repository.claim.ResourceClaim) ArrayList(java.util.ArrayList) List(java.util.List)

Example 27 with FlowFileQueue

use of org.apache.nifi.controller.queue.FlowFileQueue in project nifi by apache.

the class FlowController method instantiateSnippet.

private void instantiateSnippet(final ProcessGroup group, final FlowSnippetDTO dto, final boolean topLevel) throws ProcessorInstantiationException {
    writeLock.lock();
    try {
        validateSnippetContents(requireNonNull(group), dto);
        // 
        for (final ControllerServiceDTO controllerServiceDTO : dto.getControllerServices()) {
            final BundleCoordinate bundleCoordinate = BundleUtils.getBundle(controllerServiceDTO.getType(), controllerServiceDTO.getBundle());
            final ControllerServiceNode serviceNode = createControllerService(controllerServiceDTO.getType(), controllerServiceDTO.getId(), bundleCoordinate, Collections.emptySet(), true);
            serviceNode.setAnnotationData(controllerServiceDTO.getAnnotationData());
            serviceNode.setComments(controllerServiceDTO.getComments());
            serviceNode.setName(controllerServiceDTO.getName());
            if (!topLevel) {
                serviceNode.setVersionedComponentId(controllerServiceDTO.getVersionedComponentId());
            }
            group.addControllerService(serviceNode);
        }
        // references another service.
        for (final ControllerServiceDTO controllerServiceDTO : dto.getControllerServices()) {
            final String serviceId = controllerServiceDTO.getId();
            final ControllerServiceNode serviceNode = getControllerServiceNode(serviceId);
            serviceNode.setProperties(controllerServiceDTO.getProperties());
        }
        // 
        for (final LabelDTO labelDTO : dto.getLabels()) {
            final Label label = createLabel(labelDTO.getId(), labelDTO.getLabel());
            label.setPosition(toPosition(labelDTO.getPosition()));
            if (labelDTO.getWidth() != null && labelDTO.getHeight() != null) {
                label.setSize(new Size(labelDTO.getWidth(), labelDTO.getHeight()));
            }
            label.setStyle(labelDTO.getStyle());
            if (!topLevel) {
                label.setVersionedComponentId(labelDTO.getVersionedComponentId());
            }
            group.addLabel(label);
        }
        // Instantiate the funnels
        for (final FunnelDTO funnelDTO : dto.getFunnels()) {
            final Funnel funnel = createFunnel(funnelDTO.getId());
            funnel.setPosition(toPosition(funnelDTO.getPosition()));
            if (!topLevel) {
                funnel.setVersionedComponentId(funnelDTO.getVersionedComponentId());
            }
            group.addFunnel(funnel);
        }
        // 
        for (final PortDTO portDTO : dto.getInputPorts()) {
            final Port inputPort;
            if (group.isRootGroup()) {
                inputPort = createRemoteInputPort(portDTO.getId(), portDTO.getName());
                inputPort.setMaxConcurrentTasks(portDTO.getConcurrentlySchedulableTaskCount());
                if (portDTO.getGroupAccessControl() != null) {
                    ((RootGroupPort) inputPort).setGroupAccessControl(portDTO.getGroupAccessControl());
                }
                if (portDTO.getUserAccessControl() != null) {
                    ((RootGroupPort) inputPort).setUserAccessControl(portDTO.getUserAccessControl());
                }
            } else {
                inputPort = createLocalInputPort(portDTO.getId(), portDTO.getName());
            }
            if (!topLevel) {
                inputPort.setVersionedComponentId(portDTO.getVersionedComponentId());
            }
            inputPort.setPosition(toPosition(portDTO.getPosition()));
            inputPort.setProcessGroup(group);
            inputPort.setComments(portDTO.getComments());
            group.addInputPort(inputPort);
        }
        for (final PortDTO portDTO : dto.getOutputPorts()) {
            final Port outputPort;
            if (group.isRootGroup()) {
                outputPort = createRemoteOutputPort(portDTO.getId(), portDTO.getName());
                outputPort.setMaxConcurrentTasks(portDTO.getConcurrentlySchedulableTaskCount());
                if (portDTO.getGroupAccessControl() != null) {
                    ((RootGroupPort) outputPort).setGroupAccessControl(portDTO.getGroupAccessControl());
                }
                if (portDTO.getUserAccessControl() != null) {
                    ((RootGroupPort) outputPort).setUserAccessControl(portDTO.getUserAccessControl());
                }
            } else {
                outputPort = createLocalOutputPort(portDTO.getId(), portDTO.getName());
            }
            if (!topLevel) {
                outputPort.setVersionedComponentId(portDTO.getVersionedComponentId());
            }
            outputPort.setPosition(toPosition(portDTO.getPosition()));
            outputPort.setProcessGroup(group);
            outputPort.setComments(portDTO.getComments());
            group.addOutputPort(outputPort);
        }
        // 
        for (final ProcessorDTO processorDTO : dto.getProcessors()) {
            final BundleCoordinate bundleCoordinate = BundleUtils.getBundle(processorDTO.getType(), processorDTO.getBundle());
            final ProcessorNode procNode = createProcessor(processorDTO.getType(), processorDTO.getId(), bundleCoordinate);
            procNode.setPosition(toPosition(processorDTO.getPosition()));
            procNode.setProcessGroup(group);
            if (!topLevel) {
                procNode.setVersionedComponentId(processorDTO.getVersionedComponentId());
            }
            final ProcessorConfigDTO config = processorDTO.getConfig();
            procNode.setComments(config.getComments());
            if (config.isLossTolerant() != null) {
                procNode.setLossTolerant(config.isLossTolerant());
            }
            procNode.setName(processorDTO.getName());
            procNode.setYieldPeriod(config.getYieldDuration());
            procNode.setPenalizationPeriod(config.getPenaltyDuration());
            procNode.setBulletinLevel(LogLevel.valueOf(config.getBulletinLevel()));
            procNode.setAnnotationData(config.getAnnotationData());
            procNode.setStyle(processorDTO.getStyle());
            if (config.getRunDurationMillis() != null) {
                procNode.setRunDuration(config.getRunDurationMillis(), TimeUnit.MILLISECONDS);
            }
            if (config.getSchedulingStrategy() != null) {
                procNode.setSchedulingStrategy(SchedulingStrategy.valueOf(config.getSchedulingStrategy()));
            }
            if (config.getExecutionNode() != null) {
                procNode.setExecutionNode(ExecutionNode.valueOf(config.getExecutionNode()));
            }
            if (processorDTO.getState().equals(ScheduledState.DISABLED.toString())) {
                procNode.disable();
            }
            // ensure that the scheduling strategy is set prior to these values
            procNode.setMaxConcurrentTasks(config.getConcurrentlySchedulableTaskCount());
            procNode.setScheduldingPeriod(config.getSchedulingPeriod());
            final Set<Relationship> relationships = new HashSet<>();
            if (processorDTO.getRelationships() != null) {
                for (final RelationshipDTO rel : processorDTO.getRelationships()) {
                    if (rel.isAutoTerminate()) {
                        relationships.add(procNode.getRelationship(rel.getName()));
                    }
                }
                procNode.setAutoTerminatedRelationships(relationships);
            }
            if (config.getProperties() != null) {
                procNode.setProperties(config.getProperties());
            }
            group.addProcessor(procNode);
        }
        // 
        for (final RemoteProcessGroupDTO remoteGroupDTO : dto.getRemoteProcessGroups()) {
            final RemoteProcessGroup remoteGroup = createRemoteProcessGroup(remoteGroupDTO.getId(), remoteGroupDTO.getTargetUris());
            remoteGroup.setComments(remoteGroupDTO.getComments());
            remoteGroup.setPosition(toPosition(remoteGroupDTO.getPosition()));
            remoteGroup.setCommunicationsTimeout(remoteGroupDTO.getCommunicationsTimeout());
            remoteGroup.setYieldDuration(remoteGroupDTO.getYieldDuration());
            if (!topLevel) {
                remoteGroup.setVersionedComponentId(remoteGroupDTO.getVersionedComponentId());
            }
            if (remoteGroupDTO.getTransportProtocol() == null) {
                remoteGroup.setTransportProtocol(SiteToSiteTransportProtocol.RAW);
            } else {
                remoteGroup.setTransportProtocol(SiteToSiteTransportProtocol.valueOf(remoteGroupDTO.getTransportProtocol()));
            }
            remoteGroup.setProxyHost(remoteGroupDTO.getProxyHost());
            remoteGroup.setProxyPort(remoteGroupDTO.getProxyPort());
            remoteGroup.setProxyUser(remoteGroupDTO.getProxyUser());
            remoteGroup.setProxyPassword(remoteGroupDTO.getProxyPassword());
            remoteGroup.setProcessGroup(group);
            // set the input/output ports
            if (remoteGroupDTO.getContents() != null) {
                final RemoteProcessGroupContentsDTO contents = remoteGroupDTO.getContents();
                // ensure there are input ports
                if (contents.getInputPorts() != null) {
                    remoteGroup.setInputPorts(convertRemotePort(contents.getInputPorts()), false);
                }
                // ensure there are output ports
                if (contents.getOutputPorts() != null) {
                    remoteGroup.setOutputPorts(convertRemotePort(contents.getOutputPorts()), false);
                }
            }
            group.addRemoteProcessGroup(remoteGroup);
        }
        // 
        for (final ProcessGroupDTO groupDTO : dto.getProcessGroups()) {
            final ProcessGroup childGroup = createProcessGroup(groupDTO.getId());
            childGroup.setParent(group);
            childGroup.setPosition(toPosition(groupDTO.getPosition()));
            childGroup.setComments(groupDTO.getComments());
            childGroup.setName(groupDTO.getName());
            if (groupDTO.getVariables() != null) {
                childGroup.setVariables(groupDTO.getVariables());
            }
            // We do this only if this component is the child of a Versioned Component.
            if (!topLevel) {
                childGroup.setVersionedComponentId(groupDTO.getVersionedComponentId());
            }
            group.addProcessGroup(childGroup);
            final FlowSnippetDTO contents = groupDTO.getContents();
            // we want this to be recursive, so we will create a new template that contains only
            // the contents of this child group and recursively call ourselves.
            final FlowSnippetDTO childTemplateDTO = new FlowSnippetDTO();
            childTemplateDTO.setConnections(contents.getConnections());
            childTemplateDTO.setInputPorts(contents.getInputPorts());
            childTemplateDTO.setLabels(contents.getLabels());
            childTemplateDTO.setOutputPorts(contents.getOutputPorts());
            childTemplateDTO.setProcessGroups(contents.getProcessGroups());
            childTemplateDTO.setProcessors(contents.getProcessors());
            childTemplateDTO.setFunnels(contents.getFunnels());
            childTemplateDTO.setRemoteProcessGroups(contents.getRemoteProcessGroups());
            childTemplateDTO.setControllerServices(contents.getControllerServices());
            instantiateSnippet(childGroup, childTemplateDTO, false);
            if (groupDTO.getVersionControlInformation() != null) {
                final VersionControlInformation vci = StandardVersionControlInformation.Builder.fromDto(groupDTO.getVersionControlInformation()).build();
                childGroup.setVersionControlInformation(vci, Collections.emptyMap());
            }
        }
        // 
        for (final ConnectionDTO connectionDTO : dto.getConnections()) {
            final ConnectableDTO sourceDTO = connectionDTO.getSource();
            final ConnectableDTO destinationDTO = connectionDTO.getDestination();
            final Connectable source;
            final Connectable destination;
            // see if the source connectable is a remote port
            if (ConnectableType.REMOTE_OUTPUT_PORT.name().equals(sourceDTO.getType())) {
                final RemoteProcessGroup remoteGroup = group.getRemoteProcessGroup(sourceDTO.getGroupId());
                source = remoteGroup.getOutputPort(sourceDTO.getId());
            } else {
                final ProcessGroup sourceGroup = getConnectableParent(group, sourceDTO.getGroupId());
                source = sourceGroup.getConnectable(sourceDTO.getId());
            }
            // see if the destination connectable is a remote port
            if (ConnectableType.REMOTE_INPUT_PORT.name().equals(destinationDTO.getType())) {
                final RemoteProcessGroup remoteGroup = group.getRemoteProcessGroup(destinationDTO.getGroupId());
                destination = remoteGroup.getInputPort(destinationDTO.getId());
            } else {
                final ProcessGroup destinationGroup = getConnectableParent(group, destinationDTO.getGroupId());
                destination = destinationGroup.getConnectable(destinationDTO.getId());
            }
            // determine the selection relationships for this connection
            final Set<String> relationships = new HashSet<>();
            if (connectionDTO.getSelectedRelationships() != null) {
                relationships.addAll(connectionDTO.getSelectedRelationships());
            }
            final Connection connection = createConnection(connectionDTO.getId(), connectionDTO.getName(), source, destination, relationships);
            if (!topLevel) {
                connection.setVersionedComponentId(connectionDTO.getVersionedComponentId());
            }
            if (connectionDTO.getBends() != null) {
                final List<Position> bendPoints = new ArrayList<>();
                for (final PositionDTO bend : connectionDTO.getBends()) {
                    bendPoints.add(new Position(bend.getX(), bend.getY()));
                }
                connection.setBendPoints(bendPoints);
            }
            final FlowFileQueue queue = connection.getFlowFileQueue();
            queue.setBackPressureDataSizeThreshold(connectionDTO.getBackPressureDataSizeThreshold());
            queue.setBackPressureObjectThreshold(connectionDTO.getBackPressureObjectThreshold());
            queue.setFlowFileExpiration(connectionDTO.getFlowFileExpiration());
            final List<String> prioritizers = connectionDTO.getPrioritizers();
            if (prioritizers != null) {
                final List<String> newPrioritizersClasses = new ArrayList<>(prioritizers);
                final List<FlowFilePrioritizer> newPrioritizers = new ArrayList<>();
                for (final String className : newPrioritizersClasses) {
                    try {
                        newPrioritizers.add(createPrioritizer(className));
                    } catch (final ClassNotFoundException | InstantiationException | IllegalAccessException e) {
                        throw new IllegalArgumentException("Unable to set prioritizer " + className + ": " + e);
                    }
                }
                queue.setPriorities(newPrioritizers);
            }
            connection.setProcessGroup(group);
            group.addConnection(connection);
        }
    } finally {
        writeLock.unlock();
    }
}
Also used : Funnel(org.apache.nifi.connectable.Funnel) ControllerServiceDTO(org.apache.nifi.web.api.dto.ControllerServiceDTO) FlowSnippetDTO(org.apache.nifi.web.api.dto.FlowSnippetDTO) StandardRootGroupPort(org.apache.nifi.remote.StandardRootGroupPort) RootGroupPort(org.apache.nifi.remote.RootGroupPort) Size(org.apache.nifi.connectable.Size) QueueSize(org.apache.nifi.controller.queue.QueueSize) ConnectionDTO(org.apache.nifi.web.api.dto.ConnectionDTO) StandardRootGroupPort(org.apache.nifi.remote.StandardRootGroupPort) LocalPort(org.apache.nifi.connectable.LocalPort) RemoteGroupPort(org.apache.nifi.remote.RemoteGroupPort) RootGroupPort(org.apache.nifi.remote.RootGroupPort) Port(org.apache.nifi.connectable.Port) StandardLabel(org.apache.nifi.controller.label.StandardLabel) Label(org.apache.nifi.controller.label.Label) ArrayList(java.util.ArrayList) RelationshipDTO(org.apache.nifi.web.api.dto.RelationshipDTO) FlowFileQueue(org.apache.nifi.controller.queue.FlowFileQueue) BundleCoordinate(org.apache.nifi.bundle.BundleCoordinate) Connectable(org.apache.nifi.connectable.Connectable) ProcessGroupDTO(org.apache.nifi.web.api.dto.ProcessGroupDTO) RemoteProcessGroupDTO(org.apache.nifi.web.api.dto.RemoteProcessGroupDTO) FlowFilePrioritizer(org.apache.nifi.flowfile.FlowFilePrioritizer) ConnectableDTO(org.apache.nifi.web.api.dto.ConnectableDTO) HashSet(java.util.HashSet) LinkedHashSet(java.util.LinkedHashSet) RemoteProcessGroup(org.apache.nifi.groups.RemoteProcessGroup) StandardRemoteProcessGroup(org.apache.nifi.remote.StandardRemoteProcessGroup) Position(org.apache.nifi.connectable.Position) RemoteProcessGroupPortDTO(org.apache.nifi.web.api.dto.RemoteProcessGroupPortDTO) PortDTO(org.apache.nifi.web.api.dto.PortDTO) RemoteProcessGroupContentsDTO(org.apache.nifi.web.api.dto.RemoteProcessGroupContentsDTO) Connection(org.apache.nifi.connectable.Connection) VersionedConnection(org.apache.nifi.registry.flow.VersionedConnection) StandardConnection(org.apache.nifi.connectable.StandardConnection) RemoteProcessGroupDTO(org.apache.nifi.web.api.dto.RemoteProcessGroupDTO) FunnelDTO(org.apache.nifi.web.api.dto.FunnelDTO) PositionDTO(org.apache.nifi.web.api.dto.PositionDTO) ProcessorConfigDTO(org.apache.nifi.web.api.dto.ProcessorConfigDTO) StandardVersionControlInformation(org.apache.nifi.registry.flow.StandardVersionControlInformation) VersionControlInformation(org.apache.nifi.registry.flow.VersionControlInformation) ControllerServiceNode(org.apache.nifi.controller.service.ControllerServiceNode) ProcessorDTO(org.apache.nifi.web.api.dto.ProcessorDTO) Relationship(org.apache.nifi.processor.Relationship) VersionedProcessGroup(org.apache.nifi.registry.flow.VersionedProcessGroup) StandardProcessGroup(org.apache.nifi.groups.StandardProcessGroup) RemoteProcessGroup(org.apache.nifi.groups.RemoteProcessGroup) ProcessGroup(org.apache.nifi.groups.ProcessGroup) StandardRemoteProcessGroup(org.apache.nifi.remote.StandardRemoteProcessGroup) LabelDTO(org.apache.nifi.web.api.dto.LabelDTO) ProcessorInstantiationException(org.apache.nifi.controller.exception.ProcessorInstantiationException) ReportingTaskInstantiationException(org.apache.nifi.controller.reporting.ReportingTaskInstantiationException) ControllerServiceInstantiationException(org.apache.nifi.controller.exception.ControllerServiceInstantiationException)

Example 28 with FlowFileQueue

use of org.apache.nifi.controller.queue.FlowFileQueue in project nifi by apache.

the class FlowController method getReplayFailureReason.

private String getReplayFailureReason(final ProvenanceEventRecord event) {
    // Check that the event is a valid type.
    final ProvenanceEventType type = event.getEventType();
    if (type == ProvenanceEventType.JOIN) {
        return "Cannot replay events that are created from multiple parents";
    }
    // Make sure event has the Content Claim info
    final Long contentSize = event.getPreviousFileSize();
    final String contentClaimId = event.getPreviousContentClaimIdentifier();
    final String contentClaimSection = event.getPreviousContentClaimSection();
    final String contentClaimContainer = event.getPreviousContentClaimContainer();
    if (contentSize == null || contentClaimId == null || contentClaimSection == null || contentClaimContainer == null) {
        return "Cannot replay data from Provenance Event because the event does not contain the required Content Claim";
    }
    try {
        final ResourceClaim resourceClaim = resourceClaimManager.newResourceClaim(contentClaimContainer, contentClaimSection, contentClaimId, false, false);
        final ContentClaim contentClaim = new StandardContentClaim(resourceClaim, event.getPreviousContentClaimOffset());
        if (!contentRepository.isAccessible(contentClaim)) {
            return "Content is no longer available in Content Repository";
        }
    } catch (final IOException ioe) {
        return "Failed to determine whether or not content was available in Content Repository due to " + ioe.toString();
    }
    // Make sure that the source queue exists
    if (event.getSourceQueueIdentifier() == null) {
        return "Cannot replay data from Provenance Event because the event does not specify the Source FlowFile Queue";
    }
    final List<Connection> connections = getGroup(getRootGroupId()).findAllConnections();
    FlowFileQueue queue = null;
    for (final Connection connection : connections) {
        if (event.getSourceQueueIdentifier().equals(connection.getIdentifier())) {
            queue = connection.getFlowFileQueue();
            break;
        }
    }
    if (queue == null) {
        return "Cannot replay data from Provenance Event because the Source FlowFile Queue with ID " + event.getSourceQueueIdentifier() + " no longer exists";
    }
    return null;
}
Also used : StandardContentClaim(org.apache.nifi.controller.repository.claim.StandardContentClaim) ContentClaim(org.apache.nifi.controller.repository.claim.ContentClaim) StandardContentClaim(org.apache.nifi.controller.repository.claim.StandardContentClaim) Connection(org.apache.nifi.connectable.Connection) VersionedConnection(org.apache.nifi.registry.flow.VersionedConnection) StandardConnection(org.apache.nifi.connectable.StandardConnection) ResourceClaim(org.apache.nifi.controller.repository.claim.ResourceClaim) IOException(java.io.IOException) FlowFileQueue(org.apache.nifi.controller.queue.FlowFileQueue) ProvenanceEventType(org.apache.nifi.provenance.ProvenanceEventType)

Example 29 with FlowFileQueue

use of org.apache.nifi.controller.queue.FlowFileQueue in project nifi by apache.

the class FlowController method replayFlowFile.

public ProvenanceEventRecord replayFlowFile(final ProvenanceEventRecord event, final NiFiUser user) throws IOException {
    if (event == null) {
        throw new NullPointerException();
    }
    // Check that the event is a valid type.
    final ProvenanceEventType type = event.getEventType();
    if (type == ProvenanceEventType.JOIN) {
        throw new IllegalArgumentException("Cannot replay events that are created from multiple parents");
    }
    // Make sure event has the Content Claim info
    final Long contentSize = event.getPreviousFileSize();
    final String contentClaimId = event.getPreviousContentClaimIdentifier();
    final String contentClaimSection = event.getPreviousContentClaimSection();
    final String contentClaimContainer = event.getPreviousContentClaimContainer();
    if (contentSize == null || contentClaimId == null || contentClaimSection == null || contentClaimContainer == null) {
        throw new IllegalArgumentException("Cannot replay data from Provenance Event because the event does not contain the required Content Claim");
    }
    // Make sure that the source queue exists
    if (event.getSourceQueueIdentifier() == null) {
        throw new IllegalArgumentException("Cannot replay data from Provenance Event because the event does not specify the Source FlowFile Queue");
    }
    final List<Connection> connections = getGroup(getRootGroupId()).findAllConnections();
    FlowFileQueue queue = null;
    for (final Connection connection : connections) {
        if (event.getSourceQueueIdentifier().equals(connection.getIdentifier())) {
            queue = connection.getFlowFileQueue();
            break;
        }
    }
    if (queue == null) {
        throw new IllegalStateException("Cannot replay data from Provenance Event because the Source FlowFile Queue with ID " + event.getSourceQueueIdentifier() + " no longer exists");
    }
    // Create the ContentClaim. To do so, we first need the appropriate Resource Claim. Because we don't know whether or
    // not the Resource Claim is still active, we first call ResourceClaimManager.getResourceClaim. If this returns
    // null, then we know that the Resource Claim is no longer active and can just create a new one that is not writable.
    // It's critical though that we first call getResourceClaim because otherwise, if the Resource Claim is active and we
    // create a new one that is not writable, we could end up archiving or destroying the Resource Claim while it's still
    // being written to by the Content Repository. This is important only because we are creating a FlowFile with this Resource
    // Claim. If, for instance, we are simply creating the claim to request its content, as in #getContentAvailability, etc.
    // then this is not necessary.
    ResourceClaim resourceClaim = resourceClaimManager.getResourceClaim(event.getPreviousContentClaimContainer(), event.getPreviousContentClaimSection(), event.getPreviousContentClaimIdentifier());
    if (resourceClaim == null) {
        resourceClaim = resourceClaimManager.newResourceClaim(event.getPreviousContentClaimContainer(), event.getPreviousContentClaimSection(), event.getPreviousContentClaimIdentifier(), false, false);
    }
    // Increment Claimant Count, since we will now be referencing the Content Claim
    resourceClaimManager.incrementClaimantCount(resourceClaim);
    final long claimOffset = event.getPreviousContentClaimOffset() == null ? 0L : event.getPreviousContentClaimOffset().longValue();
    final StandardContentClaim contentClaim = new StandardContentClaim(resourceClaim, claimOffset);
    contentClaim.setLength(event.getPreviousFileSize() == null ? -1L : event.getPreviousFileSize());
    if (!contentRepository.isAccessible(contentClaim)) {
        resourceClaimManager.decrementClaimantCount(resourceClaim);
        throw new IllegalStateException("Cannot replay data from Provenance Event because the data is no longer available in the Content Repository");
    }
    final String parentUUID = event.getFlowFileUuid();
    final String newFlowFileUUID = UUID.randomUUID().toString();
    // We need to create a new FlowFile by populating it with information from the
    // Provenance Event. Particularly of note here is that we are setting the FlowFile's
    // contentClaimOffset to 0. This is done for backward compatibility reasons. ContentClaim
    // used to not have a concept of an offset, and the offset was tied only to the FlowFile. This
    // was later refactored, so that the offset was part of the ContentClaim. If we set the offset
    // in both places, we'll end up skipping over that many bytes twice instead of once (once to get
    // to the beginning of the Content Claim and again to get to the offset within that Content Claim).
    // To avoid this, we just always set the offset in the Content Claim itself and set the
    // FlowFileRecord's contentClaimOffset to 0.
    final FlowFileRecord flowFileRecord = new StandardFlowFileRecord.Builder().addAttributes(event.getPreviousAttributes()).contentClaim(contentClaim).contentClaimOffset(// use 0 because we used the content claim offset in the Content Claim itself
    0L).entryDate(System.currentTimeMillis()).id(flowFileRepository.getNextFlowFileSequence()).lineageStart(event.getLineageStartDate(), 0L).size(contentSize.longValue()).addAttribute("flowfile.replay", "true").addAttribute("flowfile.replay.timestamp", String.valueOf(new Date())).addAttribute(CoreAttributes.UUID.key(), newFlowFileUUID).removeAttributes(CoreAttributes.DISCARD_REASON.key(), CoreAttributes.ALTERNATE_IDENTIFIER.key()).build();
    // Register a Provenance Event to indicate that we replayed the data.
    final ProvenanceEventRecord replayEvent = new StandardProvenanceEventRecord.Builder().setEventType(ProvenanceEventType.REPLAY).addChildUuid(newFlowFileUUID).addParentUuid(parentUUID).setFlowFileUUID(parentUUID).setAttributes(Collections.emptyMap(), flowFileRecord.getAttributes()).setCurrentContentClaim(event.getContentClaimContainer(), event.getContentClaimSection(), event.getContentClaimIdentifier(), event.getContentClaimOffset(), event.getFileSize()).setDetails("Replay requested by " + user.getIdentity()).setEventTime(System.currentTimeMillis()).setFlowFileEntryDate(System.currentTimeMillis()).setLineageStartDate(event.getLineageStartDate()).setComponentType(event.getComponentType()).setComponentId(event.getComponentId()).build();
    provenanceRepository.registerEvent(replayEvent);
    // Update the FlowFile Repository to indicate that we have added the FlowFile to the flow
    final StandardRepositoryRecord record = new StandardRepositoryRecord(queue);
    record.setWorking(flowFileRecord);
    record.setDestination(queue);
    flowFileRepository.updateRepository(Collections.singleton(record));
    // Enqueue the data
    queue.put(flowFileRecord);
    return replayEvent;
}
Also used : Connection(org.apache.nifi.connectable.Connection) VersionedConnection(org.apache.nifi.registry.flow.VersionedConnection) StandardConnection(org.apache.nifi.connectable.StandardConnection) FlowFileQueue(org.apache.nifi.controller.queue.FlowFileQueue) Date(java.util.Date) StandardProvenanceEventRecord(org.apache.nifi.provenance.StandardProvenanceEventRecord) StandardContentClaim(org.apache.nifi.controller.repository.claim.StandardContentClaim) StandardRepositoryRecord(org.apache.nifi.controller.repository.StandardRepositoryRecord) StandardProvenanceEventRecord(org.apache.nifi.provenance.StandardProvenanceEventRecord) ProvenanceEventRecord(org.apache.nifi.provenance.ProvenanceEventRecord) ResourceClaim(org.apache.nifi.controller.repository.claim.ResourceClaim) FlowFileRecord(org.apache.nifi.controller.repository.FlowFileRecord) StandardFlowFileRecord(org.apache.nifi.controller.repository.StandardFlowFileRecord) ProvenanceEventType(org.apache.nifi.provenance.ProvenanceEventType)

Example 30 with FlowFileQueue

use of org.apache.nifi.controller.queue.FlowFileQueue in project nifi by apache.

the class SchemaRepositoryRecordSerdeTest method createMockQueue.

private FlowFileQueue createMockQueue(String identifier) {
    FlowFileQueue flowFileQueue = mock(FlowFileQueue.class);
    when(flowFileQueue.getIdentifier()).thenReturn(identifier);
    queueMap.put(identifier, flowFileQueue);
    return flowFileQueue;
}
Also used : FlowFileQueue(org.apache.nifi.controller.queue.FlowFileQueue)

Aggregations

FlowFileQueue (org.apache.nifi.controller.queue.FlowFileQueue)46 Connection (org.apache.nifi.connectable.Connection)25 ArrayList (java.util.ArrayList)20 HashMap (java.util.HashMap)15 IOException (java.io.IOException)14 Test (org.junit.Test)12 List (java.util.List)10 Map (java.util.Map)10 Connectable (org.apache.nifi.connectable.Connectable)10 FlowFileRecord (org.apache.nifi.controller.repository.FlowFileRecord)10 ContentClaim (org.apache.nifi.controller.repository.claim.ContentClaim)10 ResourceClaim (org.apache.nifi.controller.repository.claim.ResourceClaim)10 HashSet (java.util.HashSet)9 Set (java.util.Set)8 StandardResourceClaimManager (org.apache.nifi.controller.repository.claim.StandardResourceClaimManager)8 OutputStream (java.io.OutputStream)7 ResourceClaimManager (org.apache.nifi.controller.repository.claim.ResourceClaimManager)7 Relationship (org.apache.nifi.processor.Relationship)7 InputStream (java.io.InputStream)6 TimeUnit (java.util.concurrent.TimeUnit)6