Examples with YFlowDeleteFsm org.openkilda.wfm.topology.flowhs.fsm.yflow.delete.YFlowDeleteFsm used on opensource projects

Example 1 with YFlowDeleteFsm

use of org.openkilda.wfm.topology.flowhs.fsm.yflow.delete.YFlowDeleteFsm in project open-kilda by telstra.

the class YFlowDeleteService method handleAsyncResponse.

/**
 * Handles async response from worker.
 *
 * @param key command identifier.
 */
public void handleAsyncResponse(@NonNull String key, @NonNull SpeakerResponse speakerResponse) throws UnknownKeyException {
    log.debug("Received flow command response: {}", speakerResponse);
    YFlowDeleteFsm fsm = fsmRegister.getFsmByKey(key).orElseThrow(() -> new UnknownKeyException(key));
    if (speakerResponse instanceof SpeakerFlowSegmentResponse) {
        SpeakerFlowSegmentResponse response = (SpeakerFlowSegmentResponse) speakerResponse;
        String flowId = response.getMetadata().getFlowId();
        if (fsm.getDeletingSubFlows().contains(flowId)) {
            flowDeleteService.handleAsyncResponseByFlowId(flowId, response);
        }
    } else if (speakerResponse instanceof SpeakerCommandResponse) {
        SpeakerCommandResponse response = (SpeakerCommandResponse) speakerResponse;
        YFlowDeleteContext context = YFlowDeleteContext.builder().speakerResponse(response).build();
        fsmExecutor.fire(fsm, Event.RESPONSE_RECEIVED, context);
    } else {
        log.debug("Received unexpected speaker response: {}", speakerResponse);
    }
    // After handling an event by FlowDelete services, we should propagate execution to the FSM.
    if (!fsm.isTerminated()) {
        fsmExecutor.fire(fsm, Event.NEXT);
    }
    removeIfFinished(fsm, key);
}

Example 2 with YFlowDeleteFsm

use of org.openkilda.wfm.topology.flowhs.fsm.yflow.delete.YFlowDeleteFsm in project open-kilda by telstra.

the class OnReceivedRemoveResponseAction method perform.

@Override
public void perform(State from, State to, Event event, YFlowDeleteContext context, YFlowDeleteFsm stateMachine) {
    SpeakerCommandResponse response = context.getSpeakerResponse();
    UUID commandId = response.getCommandId();
    if (!stateMachine.hasPendingCommand(commandId)) {
        log.info("Received a response for unexpected command: {}", response);
        return;
    }
    if (response.isSuccess()) {
        stateMachine.removePendingCommand(commandId);
        stateMachine.saveActionToHistory("Rule was deleted", format("The rule was removed: switch %s", response.getSwitchId()));
    } else {
        Optional<DeleteSpeakerCommandsRequest> request = stateMachine.getDeleteSpeakerCommand(commandId);
        int attempt = stateMachine.doRetryForCommand(commandId);
        if (attempt <= speakerCommandRetriesLimit && request.isPresent()) {
            response.getFailedCommandIds().forEach((uuid, message) -> stateMachine.saveErrorToHistory(FAILED_TO_REMOVE_RULE_ACTION, format("Failed to remove the rule: commandId %s, ruleId %s, switch %s. " + "Error: %s. Retrying (attempt %d)", commandId, uuid, response.getSwitchId(), message, attempt)));
            Set<UUID> failedUuids = response.getFailedCommandIds().keySet();
            DeleteSpeakerCommandsRequest deleteRequest = request.get();
            List<OfCommand> commands = deleteRequest.getCommands().stream().filter(command -> command instanceof FlowCommand && failedUuids.contains(((FlowCommand) command).getData().getUuid()) || command instanceof MeterCommand && failedUuids.contains(((MeterCommand) command).getData().getUuid()) || command instanceof GroupCommand && failedUuids.contains(((GroupCommand) command).getData().getUuid())).collect(Collectors.toList());
            stateMachine.getCarrier().sendSpeakerRequest(deleteRequest.toBuilder().commands(commands).build());
        } else {
            stateMachine.addFailedCommand(commandId, response);
            stateMachine.removePendingCommand(commandId);
            response.getFailedCommandIds().forEach((uuid, message) -> stateMachine.saveErrorToHistory(FAILED_TO_REMOVE_RULE_ACTION, format("Failed to remove the rule: commandId %s, ruleId %s, switch %s. Error: %s", commandId, uuid, response.getSwitchId(), message)));
        }
    }
    if (stateMachine.getPendingCommands().isEmpty()) {
        if (stateMachine.getFailedCommands().isEmpty()) {
            log.debug("Received responses for all pending remove commands of y-flow {}", stateMachine.getYFlowId());
            stateMachine.fire(Event.ALL_YFLOW_METERS_REMOVED);
        } else {
            String errorMessage = format("Received error response(s) for %d remove commands", stateMachine.getFailedCommands().size());
            stateMachine.saveErrorToHistory(errorMessage);
            stateMachine.fireError(errorMessage);
        }
    }
}

Example 3 with YFlowDeleteFsm

use of org.openkilda.wfm.topology.flowhs.fsm.yflow.delete.YFlowDeleteFsm in project open-kilda by telstra.

the class YFlowDeleteService method handleTimeout.

/**
 * Handles timeout case.
 *
 * @param key command identifier.
 */
public void handleTimeout(@NonNull String key) throws UnknownKeyException {
    log.debug("Handling timeout for {}", key);
    YFlowDeleteFsm fsm = fsmRegister.getFsmByKey(key).orElseThrow(() -> new UnknownKeyException(key));
    // Propagate timeout event to all sub-flow processing FSMs.
    fsm.getDeletingSubFlows().forEach(flowId -> {
        try {
            flowDeleteService.handleTimeoutByFlowId(flowId);
        } catch (UnknownKeyException e) {
            log.error("Failed to handle a timeout event by FlowDeleteService for {}.", flowId);
        }
    });
    fsmExecutor.fire(fsm, Event.TIMEOUT);
    removeIfFinished(fsm, key);
}

Example 4 with YFlowDeleteFsm

use of org.openkilda.wfm.topology.flowhs.fsm.yflow.delete.YFlowDeleteFsm in project open-kilda by telstra.

the class YFlowDeleteService method handleRequest.

/**
 * Handles request for y-flow deletion.
 *
 * @param key command identifier.
 * @param request request data.
 */
public void handleRequest(@NonNull String key, @NonNull CommandContext commandContext, @NonNull YFlowDeleteRequest request) throws DuplicateKeyException {
    String yFlowId = request.getYFlowId();
    log.debug("Handling y-flow delete request with key {} and yFlowId {}", key, yFlowId);
    if (fsmRegister.hasRegisteredFsmWithKey(key)) {
        throw new DuplicateKeyException(key, "There's another active FSM with the same key");
    }
    if (fsmRegister.hasRegisteredFsmWithFlowId(yFlowId)) {
        sendErrorResponseToNorthbound(ErrorType.ALREADY_EXISTS, "Could not delete y-flow", format("Y-flow %s is already creating now", yFlowId), commandContext);
        return;
    }
    YFlowDeleteFsm fsm = fsmFactory.newInstance(commandContext, yFlowId, eventListeners);
    fsmRegister.registerFsm(key, fsm);
    YFlowDeleteContext context = YFlowDeleteContext.builder().build();
    fsm.start(context);
    fsmExecutor.fire(fsm, Event.NEXT, context);
    removeIfFinished(fsm, key);
}