Examples with ProcessorsEntity org.apache.nifi.web.api.entity.ProcessorsEntity used on opensource projects

Example 1 with ProcessorsEntity

use of org.apache.nifi.web.api.entity.ProcessorsEntity in project nifi by apache.

the class ClusterReplicationComponentLifecycle method waitForProcessorStatus.

/**
 * Periodically polls the process group with the given ID, waiting for all processors whose ID's are given to have the given Scheduled State.
 *
 * @param user the user making the request
 * @param originalUri the original uri
 * @param groupId the ID of the Process Group to poll
 * @param processors the Processors whose state should be equal to the given desired state
 * @param desiredState the desired state for all processors with the ID's given
 * @param pause the Pause that can be used to wait between polling
 * @return <code>true</code> if successful, <code>false</code> if unable to wait for processors to reach the desired state
 */
private boolean waitForProcessorStatus(final NiFiUser user, final URI originalUri, final String groupId, final Map<String, AffectedComponentEntity> processors, final ScheduledState desiredState, final Pause pause) throws InterruptedException {
    URI groupUri;
    try {
        groupUri = new URI(originalUri.getScheme(), originalUri.getUserInfo(), originalUri.getHost(), originalUri.getPort(), "/nifi-api/process-groups/" + groupId + "/processors", "includeDescendantGroups=true", originalUri.getFragment());
    } catch (URISyntaxException e) {
        throw new RuntimeException(e);
    }
    final Map<String, String> headers = new HashMap<>();
    final MultivaluedMap<String, String> requestEntity = new MultivaluedHashMap<>();
    boolean continuePolling = true;
    while (continuePolling) {
        // Determine whether we should replicate only to the cluster coordinator, or if we should replicate directly to the cluster nodes themselves.
        final NodeResponse clusterResponse;
        if (getReplicationTarget() == ReplicationTarget.CLUSTER_NODES) {
            clusterResponse = getRequestReplicator().replicate(user, HttpMethod.GET, groupUri, requestEntity, headers).awaitMergedResponse();
        } else {
            clusterResponse = getRequestReplicator().forwardToCoordinator(getClusterCoordinatorNode(), user, HttpMethod.GET, groupUri, requestEntity, headers).awaitMergedResponse();
        }
        if (clusterResponse.getStatus() != Status.OK.getStatusCode()) {
            return false;
        }
        final ProcessorsEntity processorsEntity = getResponseEntity(clusterResponse, ProcessorsEntity.class);
        final Set<ProcessorEntity> processorEntities = processorsEntity.getProcessors();
        if (isProcessorActionComplete(processorEntities, processors, desiredState)) {
            logger.debug("All {} processors of interest now have the desired state of {}", processors.size(), desiredState);
            return true;
        }
        // Not all of the processors are in the desired state. Pause for a bit and poll again.
        continuePolling = pause.pause();
    }
    return false;
}

Example 2 with ProcessorsEntity

use of org.apache.nifi.web.api.entity.ProcessorsEntity in project nifi by apache.

the class ProcessorsEndpointMerger method merge.

@Override
public final NodeResponse merge(final URI uri, final String method, final Set<NodeResponse> successfulResponses, final Set<NodeResponse> problematicResponses, final NodeResponse clientResponse) {
    if (!canHandle(uri, method)) {
        throw new IllegalArgumentException("Cannot use Endpoint Mapper of type " + getClass().getSimpleName() + " to map responses for URI " + uri + ", HTTP Method " + method);
    }
    final ProcessorsEntity responseEntity = clientResponse.getClientResponse().readEntity(ProcessorsEntity.class);
    final Set<ProcessorEntity> processorEntities = responseEntity.getProcessors();
    final Map<String, Map<NodeIdentifier, ProcessorEntity>> entityMap = new HashMap<>();
    for (final NodeResponse nodeResponse : successfulResponses) {
        final ProcessorsEntity nodeResponseEntity = nodeResponse == clientResponse ? responseEntity : nodeResponse.getClientResponse().readEntity(ProcessorsEntity.class);
        final Set<ProcessorEntity> nodeProcessorEntities = nodeResponseEntity.getProcessors();
        for (final ProcessorEntity nodeProcessorEntity : nodeProcessorEntities) {
            final NodeIdentifier nodeId = nodeResponse.getNodeId();
            Map<NodeIdentifier, ProcessorEntity> innerMap = entityMap.get(nodeId);
            if (innerMap == null) {
                innerMap = new HashMap<>();
                entityMap.put(nodeProcessorEntity.getId(), innerMap);
            }
            innerMap.put(nodeResponse.getNodeId(), nodeProcessorEntity);
        }
    }
    ProcessorsEntityMerger.mergeProcessors(processorEntities, entityMap);
    // create a new client response
    return new NodeResponse(clientResponse, responseEntity);
}

Example 3 with ProcessorsEntity

use of org.apache.nifi.web.api.entity.ProcessorsEntity in project nifi by apache.

the class ProcessGroupResource method getProcessors.

/**
 * Retrieves all the processors in this NiFi.
 *
 * @param groupId group id
 * @return A processorsEntity.
 */
@GET
@Consumes(MediaType.WILDCARD)
@Produces(MediaType.APPLICATION_JSON)
@Path("{id}/processors")
@ApiOperation(value = "Gets all processors", response = ProcessorsEntity.class, authorizations = { @Authorization(value = "Read - /process-groups/{uuid}") })
@ApiResponses(value = { @ApiResponse(code = 400, message = "NiFi was unable to complete the request because it was invalid. The request should not be retried without modification."), @ApiResponse(code = 401, message = "Client could not be authenticated."), @ApiResponse(code = 403, message = "Client is not authorized to make this request."), @ApiResponse(code = 404, message = "The specified resource could not be found."), @ApiResponse(code = 409, message = "The request was valid but NiFi was not in the appropriate state to process it. Retrying the same request later may be successful.") })
public Response getProcessors(@ApiParam(value = "The process group id.", required = true) @PathParam("id") final String groupId, @ApiParam("Whether or not to include processors from descendant process groups") @QueryParam("includeDescendantGroups") @DefaultValue("false") boolean includeDescendantGroups) {
    if (isReplicateRequest()) {
        return replicate(HttpMethod.GET);
    }
    // authorize access
    serviceFacade.authorizeAccess(lookup -> {
        final Authorizable processGroup = lookup.getProcessGroup(groupId).getAuthorizable();
        processGroup.authorize(authorizer, RequestAction.READ, NiFiUserUtils.getNiFiUser());
    });
    // get the processors
    final Set<ProcessorEntity> processors = serviceFacade.getProcessors(groupId, includeDescendantGroups);
    // create the response entity
    final ProcessorsEntity entity = new ProcessorsEntity();
    entity.setProcessors(processorResource.populateRemainingProcessorEntitiesContent(processors));
    // generate the response
    return generateOkResponse(entity).build();
}

Example 4 with ProcessorsEntity

use of org.apache.nifi.web.api.entity.ProcessorsEntity in project nifi by apache.

the class ProcessGroupResource method waitForProcessorStatus.

/**
 * Periodically polls the process group with the given ID, waiting for all processors whose ID's are given to have the given Scheduled State.
 *
 * @param groupId the ID of the Process Group to poll
 * @param processorIds the ID of all Processors whose state should be equal to the given desired state
 * @param desiredState the desired state for all processors with the ID's given
 * @param pause the Pause that can be used to wait between polling
 * @return <code>true</code> if successful, <code>false</code> if unable to wait for processors to reach the desired state
 */
private boolean waitForProcessorStatus(final URI originalUri, final String groupId, final Set<String> processorIds, final ScheduledState desiredState, final VariableRegistryUpdateRequest updateRequest, final Pause pause) throws InterruptedException {
    URI groupUri;
    try {
        groupUri = new URI(originalUri.getScheme(), originalUri.getUserInfo(), originalUri.getHost(), originalUri.getPort(), "/nifi-api/process-groups/" + groupId + "/processors", "includeDescendantGroups=true", originalUri.getFragment());
    } catch (URISyntaxException e) {
        throw new RuntimeException(e);
    }
    final Map<String, String> headers = new HashMap<>();
    final MultivaluedMap<String, String> requestEntity = new MultivaluedHashMap<>();
    boolean continuePolling = true;
    while (continuePolling) {
        // Determine whether we should replicate only to the cluster coordinator, or if we should replicate directly to the cluster nodes themselves.
        final NodeResponse clusterResponse;
        if (getReplicationTarget() == ReplicationTarget.CLUSTER_NODES) {
            clusterResponse = getRequestReplicator().replicate(HttpMethod.GET, groupUri, requestEntity, headers).awaitMergedResponse();
        } else {
            clusterResponse = getRequestReplicator().forwardToCoordinator(getClusterCoordinatorNode(), HttpMethod.GET, groupUri, requestEntity, headers).awaitMergedResponse();
        }
        if (clusterResponse.getStatus() != Status.OK.getStatusCode()) {
            return false;
        }
        final ProcessorsEntity processorsEntity = getResponseEntity(clusterResponse, ProcessorsEntity.class);
        final Set<ProcessorEntity> processorEntities = processorsEntity.getProcessors();
        if (isProcessorActionComplete(processorEntities, updateRequest, processorIds, desiredState)) {
            logger.debug("All {} processors of interest now have the desired state of {}", processorIds.size(), desiredState);
            return true;
        }
        // Not all of the processors are in the desired state. Pause for a bit and poll again.
        continuePolling = pause.pause();
    }
    return false;
}