public ProgressEvent handleRequest()

in aws-connect-quickconnect/src/main/java/software/amazon/connect/quickconnect/UpdateHandler.java [28:55]
23 lines of code
3 McCabe index (conditional complexity)

    public ProgressEvent<ResourceModel, CallbackContext> handleRequest(
            final AmazonWebServicesClientProxy proxy,
            final ResourceHandlerRequest<ResourceModel> request,
            final CallbackContext callbackContext,
            final ProxyClient<ConnectClient> proxyClient,
            final Logger logger) {


        final ResourceModel desiredStateModel = request.getDesiredResourceState();
        final ResourceModel previousStateModel = request.getPreviousResourceState();
        final Set<Tag> previousResourceTags = convertResourceTagsToSet(request.getPreviousResourceTags());
        final Set<Tag> desiredResourceTags = convertResourceTagsToSet(request.getDesiredResourceTags());
        final Set<Tag> tagsToRemove = Sets.difference(previousResourceTags, desiredResourceTags);
        final Set<Tag> tagsToAdd = Sets.difference(desiredResourceTags, previousResourceTags);

        logger.log(String.format("Invoked UpdateQuickConnectHandler with QuickConnect:%s", desiredStateModel.getQuickConnectArn()));

        if (StringUtils.isNotEmpty(desiredStateModel.getInstanceArn()) && !desiredStateModel.getInstanceArn().equals(previousStateModel.getInstanceArn())) {
            throw new CfnInvalidRequestException("InstanceArn cannot be updated.");
        }

        return ProgressEvent.progress(request.getDesiredResourceState(), callbackContext)
                .then(progress -> updateQuickConnectName(proxy, proxyClient, desiredStateModel, previousStateModel, progress, callbackContext, logger))
                .then(progress -> updateQuickConnectConfig(proxy, proxyClient, desiredStateModel, previousStateModel, progress, callbackContext, logger))
                .then(progress -> unTagResource(proxy, proxyClient, desiredStateModel, tagsToRemove, progress, callbackContext, logger))
                .then(progress -> tagResource(proxy, proxyClient, desiredStateModel, tagsToAdd, progress, callbackContext, logger))
                .then(progress -> ProgressEvent.defaultSuccessHandler(desiredStateModel));
    }