Examples with UnroutableFlowException org.openkilda.pce.exception.UnroutableFlowException used on opensource projects

Example 6 with UnroutableFlowException

use of org.openkilda.pce.exception.UnroutableFlowException in project open-kilda by telstra.

the class ResourcesAllocationAction method performWithResponse.

@Override
protected Optional<Message> performWithResponse(State from, State to, Event event, FlowCreateContext context, FlowCreateFsm stateMachine) throws FlowProcessingException {
    try {
        String flowId = stateMachine.getFlowId();
        log.debug("Allocation resources has been started");
        stateMachine.setPathsBeenAllocated(false);
        if (context != null && context.getTargetFlow() != null) {
            createFlow(context.getTargetFlow());
        } else if (!flowRepository.exists(flowId)) {
            log.warn("Flow {} has been deleted while creation was in progress", flowId);
            return Optional.empty();
        }
        createPaths(stateMachine);
        log.debug("Resources allocated successfully for the flow {}", flowId);
        stateMachine.setPathsBeenAllocated(true);
        Flow resultFlow = getFlow(flowId);
        createSpeakerRequestFactories(stateMachine, resultFlow);
        saveHistory(stateMachine, resultFlow);
        if (resultFlow.isOneSwitchFlow()) {
            stateMachine.fire(Event.SKIP_NON_INGRESS_RULES_INSTALL);
        } else {
            stateMachine.fireNext(context);
        }
        // Notify about successful allocation.
        stateMachine.notifyEventListeners(listener -> listener.onResourcesAllocated(flowId));
        return Optional.of(buildResponseMessage(resultFlow, stateMachine.getCommandContext()));
    } catch (UnroutableFlowException | RecoverableException e) {
        throw new FlowProcessingException(ErrorType.NOT_FOUND, "Not enough bandwidth or no path found. " + e.getMessage(), e);
    } catch (ResourceAllocationException e) {
        throw new FlowProcessingException(ErrorType.INTERNAL_ERROR, "Failed to allocate flow resources. " + e.getMessage(), e);
    } catch (FlowNotFoundException e) {
        throw new FlowProcessingException(ErrorType.NOT_FOUND, "Couldn't find the diverse flow. " + e.getMessage(), e);
    } catch (FlowAlreadyExistException e) {
        if (!stateMachine.retryIfAllowed()) {
            throw new FlowProcessingException(ErrorType.INTERNAL_ERROR, e.getMessage(), e);
        } else {
            // we have retried the operation, no need to respond.
            log.debug(e.getMessage(), e);
            return Optional.empty();
        }
    }
}

Example 7 with UnroutableFlowException

use of org.openkilda.pce.exception.UnroutableFlowException in project open-kilda by telstra.

the class FlowRerouteServiceTest method shouldFailRerouteOnErrorDuringCompletingFlowPathInstallation.

@Test
public void shouldFailRerouteOnErrorDuringCompletingFlowPathInstallation() throws RecoverableException, UnroutableFlowException, UnknownKeyException {
    Flow origin = makeFlow();
    preparePathComputation(origin.getFlowId(), make3SwitchesPathPair());
    FlowPathRepository repository = setupFlowPathRepositorySpy();
    Set<PathId> originalPaths = origin.getPaths().stream().map(FlowPath::getPathId).collect(toSet());
    doThrow(new RuntimeException(injectedErrorMessage)).when(repository).updateStatus(ArgumentMatchers.argThat(argument -> !originalPaths.contains(argument)), eq(FlowPathStatus.ACTIVE));
    FlowRerouteService service = makeService();
    FlowRerouteRequest request = new FlowRerouteRequest(origin.getFlowId(), false, false, false, Collections.emptySet(), null, false);
    service.handleRequest(currentRequestKey, request, commandContext);
    verifyFlowStatus(origin.getFlowId(), FlowStatus.IN_PROGRESS);
    verifyNorthboundSuccessResponse(carrier);
    FlowSegmentRequest speakerRequest;
    while ((speakerRequest = requests.poll()) != null) {
        if (speakerRequest.isVerifyRequest()) {
            service.handleAsyncResponse(currentRequestKey, buildResponseOnVerifyRequest(speakerRequest));
        } else {
            produceAsyncResponse(service, speakerRequest);
        }
    }
    Flow result = verifyFlowStatus(origin.getFlowId(), FlowStatus.UP);
    verifyNoPathReplace(origin, result);
}

Example 8 with UnroutableFlowException

use of org.openkilda.pce.exception.UnroutableFlowException in project open-kilda by telstra.

the class FlowUpdateServiceTest method shouldFailUpdateOnErrorDuringCompletingFlowPathInstallation.

@Test
public void shouldFailUpdateOnErrorDuringCompletingFlowPathInstallation() throws RecoverableException, UnroutableFlowException, DuplicateKeyException, UnknownKeyException {
    Flow origin = makeFlow();
    preparePathComputation(origin.getFlowId(), make3SwitchesPathPair());
    FlowRequest request = makeRequest().flowId(origin.getFlowId()).build();
    FlowPathRepository repository = setupFlowPathRepositorySpy();
    Set<PathId> originalPaths = origin.getPaths().stream().map(FlowPath::getPathId).collect(Collectors.toSet());
    doThrow(new RuntimeException(injectedErrorMessage)).when(repository).updateStatus(ArgumentMatchers.argThat(argument -> !originalPaths.contains(argument)), eq(FlowPathStatus.ACTIVE));
    FlowUpdateService service = makeService();
    service.handleUpdateRequest(dummyRequestKey, commandContext, request);
    verifyFlowStatus(origin.getFlowId(), FlowStatus.IN_PROGRESS);
    verifyNorthboundSuccessResponse(carrier);
    FlowSegmentRequest speakerRequest;
    while ((speakerRequest = requests.poll()) != null) {
        if (speakerRequest.isVerifyRequest()) {
            service.handleAsyncResponse(dummyRequestKey, buildResponseOnVerifyRequest(speakerRequest));
        } else {
            service.handleAsyncResponse(dummyRequestKey, SpeakerFlowSegmentResponse.builder().messageContext(speakerRequest.getMessageContext()).commandId(speakerRequest.getCommandId()).metadata(speakerRequest.getMetadata()).switchId(speakerRequest.getSwitchId()).success(true).build());
        }
    }
    Flow result = verifyFlowStatus(origin.getFlowId(), FlowStatus.UP);
    verifyNoPathReplace(origin, result);
}

Example 9 with UnroutableFlowException

use of org.openkilda.pce.exception.UnroutableFlowException in project open-kilda by telstra.

the class AllocateProtectedResourcesAction method allocate.

@TimedExecution("fsm.resource_allocation_protected")
@Override
protected void allocate(FlowRerouteFsm stateMachine) throws RecoverableException, UnroutableFlowException, ResourceAllocationException {
    String flowId = stateMachine.getFlowId();
    Flow tmpFlowCopy = getFlow(flowId);
    // Detach the entity to avoid propagation to the database.
    flowRepository.detach(tmpFlowCopy);
    if (stateMachine.getNewEncapsulationType() != null) {
        // This is for PCE to use proper (updated) encapsulation type.
        tmpFlowCopy.setEncapsulationType(stateMachine.getNewEncapsulationType());
    }
    FlowPathPair oldPaths = new FlowPathPair(tmpFlowCopy.getProtectedForwardPath(), tmpFlowCopy.getProtectedReversePath());
    FlowPath primaryForward = tmpFlowCopy.getPath(stateMachine.getNewPrimaryForwardPath()).orElse(tmpFlowCopy.getForwardPath());
    FlowPath primaryReverse = tmpFlowCopy.getPath(stateMachine.getNewPrimaryReversePath()).orElse(tmpFlowCopy.getReversePath());
    Predicate<GetPathsResult> testNonOverlappingPath = path -> (primaryForward == null || !flowPathBuilder.arePathsOverlapped(path.getForward(), primaryForward)) && (primaryReverse == null || !flowPathBuilder.arePathsOverlapped(path.getReverse(), primaryReverse));
    PathId newForwardPathId = resourcesManager.generatePathId(flowId);
    PathId newReversePathId = resourcesManager.generatePathId(flowId);
    List<PathId> pathsToReuse = Lists.newArrayList(tmpFlowCopy.getProtectedForwardPathId(), tmpFlowCopy.getProtectedReversePathId());
    pathsToReuse.addAll(stateMachine.getRejectedPaths());
    log.debug("Finding a new protected path for flow {}", flowId);
    GetPathsResult allocatedPaths = allocatePathPair(tmpFlowCopy, newForwardPathId, newReversePathId, stateMachine.isIgnoreBandwidth(), pathsToReuse, oldPaths, stateMachine.isRecreateIfSamePath(), stateMachine.getSharedBandwidthGroupId(), testNonOverlappingPath);
    if (allocatedPaths != null) {
        stateMachine.setBackUpProtectedPathComputationWayUsed(allocatedPaths.isBackUpPathComputationWayUsed());
        if (!testNonOverlappingPath.test(allocatedPaths)) {
            stateMachine.saveActionToHistory("Couldn't find non overlapping protected path. Skipped creating it");
            stateMachine.fireNoPathFound("Couldn't find non overlapping protected path");
        } else {
            log.debug("New protected paths have been allocated: {}", allocatedPaths);
            stateMachine.setNewProtectedForwardPath(newForwardPathId);
            stateMachine.setNewProtectedReversePath(newReversePathId);
            log.debug("Allocating resources for a new protected path of flow {}", flowId);
            FlowResources flowResources = allocateFlowResources(tmpFlowCopy, newForwardPathId, newReversePathId);
            stateMachine.setNewProtectedResources(flowResources);
            FlowPathPair createdPaths = createFlowPathPair(flowId, flowResources, allocatedPaths, stateMachine.isIgnoreBandwidth(), stateMachine.getSharedBandwidthGroupId());
            log.debug("New protected paths have been created: {}", createdPaths);
            saveAllocationActionWithDumpsToHistory(stateMachine, tmpFlowCopy, "protected", createdPaths);
        }
    } else {
        stateMachine.saveActionToHistory("Found the same protected path. Skipped creating of it");
    }
}

Example 10 with UnroutableFlowException

use of org.openkilda.pce.exception.UnroutableFlowException in project open-kilda by telstra.

the class YFlowRerouteServiceTest method shouldFailIfNoPathAvailableForSecondSubFlow.

@Test
public void shouldFailIfNoPathAvailableForSecondSubFlow() throws UnroutableFlowException, RecoverableException, DuplicateKeyException {
    // given
    YFlowRequest createYFlowRequest = createYFlow();
    YFlowRerouteRequest request = new YFlowRerouteRequest(createYFlowRequest.getYFlowId(), "reason");
    preparePathComputationForReroute("test_flow_1", buildFirstSubFlowPathPairWithNewTransit());
    when(pathComputer.getPath(buildFlowIdArgumentMatch("test_flow_2"), any())).thenThrow(new UnroutableFlowException(injectedErrorMessage));
    prepareYPointComputation(SWITCH_SHARED, SWITCH_FIRST_EP, SWITCH_SECOND_EP, SWITCH_NEW_TRANSIT);
    // when
    processRerouteRequestAndSpeakerCommands(request, FlowStatus.IN_PROGRESS, FlowStatus.IN_PROGRESS, FlowStatus.UP);
    verifyNorthboundErrorResponse(yFlowRerouteHubCarrier, ErrorType.NOT_FOUND);
    verifyYFlowStatus(request.getYFlowId(), FlowStatus.DEGRADED, FlowStatus.UP, FlowStatus.DOWN);
    verify(yFlowRerouteHubCarrier).sendYFlowRerouteResultStatus(eq(createYFlowRequest.getYFlowId()), eq(new RerouteError("Failed to reroute sub-flows [test_flow_2] of y-flow test_successful_yflow")), anyString());
}