Examples with FlowPathSwapFsm org.openkilda.wfm.topology.flowhs.fsm.pathswap.FlowPathSwapFsm used on opensource projects

Example 1 with FlowPathSwapFsm

use of org.openkilda.wfm.topology.flowhs.fsm.pathswap.FlowPathSwapFsm in project open-kilda by telstra.

the class FlowPathSwapService method handleTimeout.

/**
 * Handles timeout case.
 *
 * @param key command identifier.
 */
public void handleTimeout(@NonNull String key) {
    log.debug("Handling timeout for {}", key);
    FlowPathSwapFsm fsm = fsmRegister.getFsmByKey(key).orElse(null);
    if (fsm == null) {
        log.warn("Failed to find a FSM: timeout event for non pending FSM with key {}", key);
        return;
    }
    fsmExecutor.fire(fsm, Event.TIMEOUT, null);
    removeIfFinished(fsm, key);
}

Example 2 with FlowPathSwapFsm

use of org.openkilda.wfm.topology.flowhs.fsm.pathswap.FlowPathSwapFsm in project open-kilda by telstra.

the class FlowPathSwapService method handleAsyncResponse.

/**
 * Handles async response from worker.
 *
 * @param key command identifier.
 */
public void handleAsyncResponse(@NonNull String key, @NonNull SpeakerResponse speakerResponse) {
    log.debug("Received flow command response {}", speakerResponse);
    FlowPathSwapFsm fsm = fsmRegister.getFsmByKey(key).orElse(null);
    if (fsm == null) {
        log.warn("Failed to find a FSM: received response with key {} for non pending FSM", key);
        return;
    }
    FlowPathSwapContext context = FlowPathSwapContext.builder().speakerResponse(speakerResponse).build();
    fsmExecutor.fire(fsm, Event.RESPONSE_RECEIVED, context);
    removeIfFinished(fsm, key);
}

Example 3 with FlowPathSwapFsm

use of org.openkilda.wfm.topology.flowhs.fsm.pathswap.FlowPathSwapFsm in project open-kilda by telstra.

the class FlowPathSwapService method handleRequest.

/**
 * Handles request for flow update.
 *
 * @param key command identifier.
 * @param request request data.
 */
public void handleRequest(@NonNull String key, @NonNull CommandContext commandContext, @NonNull FlowPathSwapRequest request) {
    String flowId = request.getFlowId();
    if (request.isManual() && yFlowRepository.isSubFlow(flowId)) {
        sendForbiddenSubFlowOperationToNorthbound(flowId, commandContext);
        return;
    }
    log.debug("Handling flow path swap request with key {} and flow ID: {}", key, flowId);
    if (fsmRegister.hasRegisteredFsmWithKey(key)) {
        log.error("Attempt to create a FSM with key {}, while there's another active FSM with the same key.", key);
        return;
    }
    if (fsmRegister.hasRegisteredFsmWithFlowId(flowId)) {
        sendErrorResponseToNorthbound(ErrorType.REQUEST_INVALID, "Could not update flow", format("Flow %s is updating now", flowId), commandContext);
        log.error("Attempt to create a FSM with key {}, while there's another active FSM for the same flowId {}.", key, flowId);
        return;
    }
    FlowPathSwapFsm fsm = fsmFactory.newInstance(commandContext, flowId);
    fsmRegister.registerFsm(key, fsm);
    FlowPathSwapContext context = FlowPathSwapContext.builder().build();
    fsmExecutor.fire(fsm, Event.NEXT, context);
    removeIfFinished(fsm, key);
}

Example 4 with FlowPathSwapFsm

use of org.openkilda.wfm.topology.flowhs.fsm.pathswap.FlowPathSwapFsm in project open-kilda by telstra.

the class OnReceivedRemoveOrRevertResponseAction method perform.

@Override
protected void perform(State from, State to, Event event, FlowPathSwapContext context, FlowPathSwapFsm stateMachine) {
    SpeakerResponse response = context.getSpeakerResponse();
    UUID commandId = response.getCommandId();
    if (!stateMachine.hasPendingCommand(commandId)) {
        log.info("Received a response for unexpected command: {}", response);
        return;
    }
    boolean isInstallCommand = stateMachine.getInstallCommand(commandId) != null || stateMachine.getInstallSpeakerCommand(commandId).isPresent();
    if (response.isSuccess()) {
        stateMachine.removePendingCommand(commandId);
        String commandName = isInstallCommand ? "re-installed (reverted)" : "deleted";
        if (response instanceof SpeakerFlowSegmentResponse) {
            stateMachine.saveActionToHistory("Rule was " + commandName, format("The rule was %s: switch %s, cookie %s", commandName, response.getSwitchId(), ((SpeakerFlowSegmentResponse) response).getCookie()));
        } else {
            stateMachine.saveActionToHistory("Rule was " + commandName, format("The rule was %s: switch %s", commandName, response.getSwitchId()));
        }
    } else {
        int attempt = stateMachine.doRetryForCommand(commandId);
        if (attempt <= speakerCommandRetriesLimit) {
            if (response instanceof FlowErrorResponse) {
                FlowErrorResponse errorResponse = (FlowErrorResponse) response;
                if (isInstallCommand) {
                    FlowSegmentRequestFactory installCommand = stateMachine.getInstallCommand(commandId);
                    stateMachine.saveErrorToHistory("Failed to re-install (revert) rule", format("Failed to install the rule: commandId %s, switch %s, cookie %s. Error %s. " + "Retrying (attempt %d)", commandId, errorResponse.getSwitchId(), installCommand.getCookie(), errorResponse, attempt));
                    stateMachine.getCarrier().sendSpeakerRequest(installCommand.makeInstallRequest(commandId));
                } else {
                    FlowSegmentRequestFactory removeCommand = stateMachine.getRemoveCommand(commandId);
                    stateMachine.saveErrorToHistory("Failed to delete rule", format("Failed to remove the rule: commandId %s, switch %s, cookie %s. Error %s. " + "Retrying (attempt %d)", commandId, errorResponse.getSwitchId(), removeCommand.getCookie(), errorResponse, attempt));
                    stateMachine.getCarrier().sendSpeakerRequest(removeCommand.makeRemoveRequest(commandId));
                }
            } else if (response instanceof SpeakerCommandResponse) {
                String commandName = isInstallCommand ? "re-install (revert)" : "delete";
                SpeakerCommandResponse speakerCommandResponse = (SpeakerCommandResponse) response;
                speakerCommandResponse.getFailedCommandIds().forEach((uuid, message) -> stateMachine.saveErrorToHistory("Failed to " + commandName + " rule", format("Failed to %s the rule: commandId %s, ruleId %s, switch %s. " + "Error %s. Retrying (attempt %d)", commandName, commandId, uuid, response.getSwitchId(), message, attempt)));
                Set<UUID> failedUuids = speakerCommandResponse.getFailedCommandIds().keySet();
                stateMachine.getInstallSpeakerCommand(commandId).ifPresent(command -> stateMachine.getCarrier().sendSpeakerRequest(command.toBuilder().commands(filterOfCommands(command.getCommands(), failedUuids)).build()));
                stateMachine.getDeleteSpeakerCommand(commandId).ifPresent(command -> stateMachine.getCarrier().sendSpeakerRequest(command.toBuilder().commands(filterOfCommands(command.getCommands(), failedUuids)).build()));
            } else {
                log.warn("Received a unknown response: {}", response);
                return;
            }
        } else {
            stateMachine.addFailedCommand(commandId, response);
            stateMachine.removePendingCommand(commandId);
            String commandName = isInstallCommand ? "re-install (revert)" : "delete";
            if (response instanceof FlowErrorResponse) {
                stateMachine.saveErrorToHistory("Failed to " + commandName + " rule", format("Failed to %s the rule: commandId %s, switch %s, cookie %s. Error %s.", commandName, commandId, response.getSwitchId(), ((FlowErrorResponse) response).getCookie(), response));
            } else if (response instanceof SpeakerCommandResponse) {
                ((SpeakerCommandResponse) response).getFailedCommandIds().forEach((uuid, message) -> stateMachine.saveErrorToHistory("Failed to " + commandName + " rule", format("Failed to %s the rule: commandId %s, ruleId %s, switch %s. Error %s.", commandName, commandId, uuid, response.getSwitchId(), message)));
            } else {
                log.warn("Received a unknown response: {}", response);
                return;
            }
        }
    }
    if (stateMachine.getPendingCommands().isEmpty()) {
        if (stateMachine.getFailedCommands().isEmpty()) {
            log.debug("Received responses for all pending install / delete commands of the flow {}", stateMachine.getFlowId());
            stateMachine.fire(Event.RULES_REMOVED);
        } else {
            String errorMessage = format("Received error response(s) for %d install / delete commands", stateMachine.getFailedCommands().size());
            stateMachine.saveErrorToHistory(errorMessage);
            stateMachine.fireError(errorMessage);
        }
    }
}

Example 5 with FlowPathSwapFsm

use of org.openkilda.wfm.topology.flowhs.fsm.pathswap.FlowPathSwapFsm in project open-kilda by telstra.

the class OnReceivedInstallResponseAction method perform.

@Override
protected void perform(State from, State to, Event event, FlowPathSwapContext context, FlowPathSwapFsm stateMachine) {
    SpeakerResponse response = context.getSpeakerResponse();
    UUID commandId = response.getCommandId();
    if (!stateMachine.hasPendingCommand(commandId)) {
        log.info("Received a response for unexpected command: {}", response);
        return;
    }
    boolean isInstallCommand = stateMachine.getInstallCommand(commandId) != null || stateMachine.getInstallSpeakerCommand(commandId).isPresent();
    if (response.isSuccess()) {
        stateMachine.removePendingCommand(commandId);
        String commandName = isInstallCommand ? "installed" : "deleted";
        if (response instanceof SpeakerFlowSegmentResponse) {
            stateMachine.saveActionToHistory("Rule was " + commandName, format("The rule was %s: switch %s, cookie %s", commandName, response.getSwitchId(), ((SpeakerFlowSegmentResponse) response).getCookie()));
        } else {
            stateMachine.saveActionToHistory("Rule was " + commandName, format("The rule was %s: switch %s", commandName, response.getSwitchId()));
        }
    } else {
        int attempt = stateMachine.doRetryForCommand(commandId);
        if (attempt <= speakerCommandRetriesLimit) {
            FlowSegmentRequestFactory flowSegmentRequest = stateMachine.getInstallCommand(commandId);
            if (flowSegmentRequest != null && response instanceof FlowErrorResponse) {
                FlowErrorResponse errorResponse = (FlowErrorResponse) response;
                stateMachine.saveErrorToHistory("Failed to install rule", format("Failed to install the rule: commandId %s, switch %s, cookie %s. Error %s. " + "Retrying (attempt %d)", commandId, errorResponse.getSwitchId(), flowSegmentRequest.getCookie(), errorResponse, attempt));
                stateMachine.getCarrier().sendSpeakerRequest(flowSegmentRequest.makeInstallRequest(commandId));
            } else if (response instanceof SpeakerCommandResponse) {
                String commandName = isInstallCommand ? "install" : "delete";
                SpeakerCommandResponse speakerCommandResponse = (SpeakerCommandResponse) response;
                speakerCommandResponse.getFailedCommandIds().forEach((uuid, message) -> stateMachine.saveErrorToHistory("Failed to " + commandName + " rule", format("Failed to %s the rule: commandId %s, ruleId %s, switch %s. " + "Error %s. Retrying (attempt %d)", commandName, commandId, uuid, response.getSwitchId(), message, attempt)));
                Set<UUID> failedUuids = speakerCommandResponse.getFailedCommandIds().keySet();
                stateMachine.getInstallSpeakerCommand(commandId).ifPresent(command -> stateMachine.getCarrier().sendSpeakerRequest(command.toBuilder().commands(filterOfCommands(command.getCommands(), failedUuids)).build()));
                stateMachine.getDeleteSpeakerCommand(commandId).ifPresent(command -> stateMachine.getCarrier().sendSpeakerRequest(command.toBuilder().commands(filterOfCommands(command.getCommands(), failedUuids)).build()));
            } else {
                log.warn("Received a unknown response: {}", response);
                return;
            }
        } else {
            stateMachine.addFailedCommand(commandId, response);
            stateMachine.removePendingCommand(commandId);
            String commandName = isInstallCommand ? "install" : "delete";
            if (response instanceof FlowErrorResponse) {
                stateMachine.saveErrorToHistory("Failed to " + commandName + " rule", format("Failed to %s the rule: commandId %s, switch %s, cookie %s. Error %s.", commandName, commandId, response.getSwitchId(), ((FlowErrorResponse) response).getCookie(), response));
            } else if (response instanceof SpeakerCommandResponse) {
                ((SpeakerCommandResponse) response).getFailedCommandIds().forEach((uuid, message) -> stateMachine.saveErrorToHistory("Failed to " + commandName + " rule", format("Failed to %s the rule: commandId %s, ruleId %s, switch %s. Error %s.", commandName, commandId, uuid, response.getSwitchId(), message)));
            } else {
                log.warn("Received a unknown response: {}", response);
                return;
            }
        }
    }
    if (stateMachine.getPendingCommands().isEmpty()) {
        if (stateMachine.getFailedCommands().isEmpty()) {
            log.debug("Received responses for all pending install / delete commands of the flow {}", stateMachine.getFlowId());
            stateMachine.fire(Event.RULES_INSTALLED);
        } else {
            String errorMessage = format("Received error response(s) for %d install / delete commands", stateMachine.getFailedCommands().size());
            stateMachine.saveErrorToHistory(errorMessage);
            stateMachine.fireError(errorMessage);
        }
    }
}