private ProgressEvent verifyResourceExists()

in aws-networkfirewall-rulegroup/src/main/java/software/amazon/networkfirewall/rulegroup/UpdateHandler.java [56:81]

• 25 lines of code
• 5 McCabe index (conditional complexity)

    private ProgressEvent<ResourceModel, CallbackContext> verifyResourceExists(
            final ProgressEvent<ResourceModel, CallbackContext> progress) {
        return proxy.initiate(
                "RuleGroup::Update-ResourceExists", proxyClient, progress.getResourceModel(), callbackContext)
                .translateToServiceRequest(Translator::translateToReadRequest)
                .makeServiceCall((describeRuleGroupRequest, client) -> {
                    try {
                        DescribeRuleGroupResponse describeResponse = client.injectCredentialsAndInvokeV2(describeRuleGroupRequest, client.client()::describeRuleGroup);
                        final Integer actualCapacityFromCreate = describeResponse.ruleGroupResponse().capacity();
                        if (desiredStateModel.getCapacity() == null) {
                            desiredStateModel.setCapacity(actualCapacityFromCreate);
                        } else {
                            if (!actualCapacityFromCreate.equals(desiredStateModel.getCapacity())) {
                                throw new CfnInvalidRequestException("RuleGroup capacity cannot be updated.");
                            }
                        }
                    } catch (final ResourceNotFoundException e) {
                        throw new CfnNotFoundException(e);
                    } catch (final AwsServiceException e) {
                        translateToCfnException(e);
                    }
                    // resource we are trying to update exists, return success
                    return ProgressEvent.defaultSuccessHandler(null);
                })
                .progress();
    }