protected void validateParameters()

in azure-functions-maven-plugin/src/main/java/com/microsoft/azure/maven/function/DeployMojo.java [110:160]
42 lines of code
26 McCabe index (conditional complexity)

    protected void validateParameters() {
        // app name
        if (StringUtils.isBlank(appName)) {
            throw new AzureToolkitRuntimeException(EMPTY_APP_NAME);
        }
        if (appName.startsWith("-") || !appName.matches(APP_NAME_PATTERN)) {
            throw new AzureToolkitRuntimeException(INVALID_APP_NAME);
        }
        // resource group
        if (StringUtils.isBlank(resourceGroup)) {
            throw new AzureToolkitRuntimeException(EMPTY_RESOURCE_GROUP);
        }
        if (resourceGroup.endsWith(".") || !resourceGroup.matches(RESOURCE_GROUP_PATTERN)) {
            throw new AzureToolkitRuntimeException(INVALID_RESOURCE_GROUP_NAME);
        }
        // asp name & resource group
        if (StringUtils.isNotEmpty(appServicePlanName) && !appServicePlanName.matches(APP_SERVICE_PLAN_NAME_PATTERN)) {
            throw new AzureToolkitRuntimeException(String.format(INVALID_SERVICE_PLAN_NAME, APP_SERVICE_PLAN_NAME_PATTERN));
        }
        if (StringUtils.isNotEmpty(appServicePlanResourceGroup) &&
                (appServicePlanResourceGroup.endsWith(".") || !appServicePlanResourceGroup.matches(RESOURCE_GROUP_PATTERN))) {
            throw new AzureToolkitRuntimeException(INVALID_SERVICE_PLAN_RESOURCE_GROUP_NAME);
        }
        // slot name
        if (deploymentSlotSetting != null && StringUtils.isEmpty(deploymentSlotSetting.getName())) {
            throw new AzureToolkitRuntimeException(EMPTY_SLOT_NAME);
        }
        if (deploymentSlotSetting != null && !deploymentSlotSetting.getName().matches(SLOT_NAME_PATTERN)) {
            throw new AzureToolkitRuntimeException(String.format(INVALID_SLOT_NAME, SLOT_NAME_PATTERN));
        }
        // region
        if (StringUtils.isNotEmpty(region) && Region.fromName(region).isExpandedValue()) {
            AzureMessager.getMessager().warning(String.format(EXPANDABLE_REGION_WARNING, region));
        }
        // os
        if (StringUtils.isNotEmpty(runtime.getOs()) && OperatingSystem.fromString(runtime.getOs()) == null) {
            throw new AzureToolkitRuntimeException(INVALID_OS);
        }
        // java version
        if (StringUtils.isNotEmpty(runtime.getJavaVersion()) && JavaVersion.fromString(runtime.getJavaVersion()).isExpandedValue()) {
            AzureMessager.getMessager().warning(String.format(EXPANDABLE_JAVA_VERSION_WARNING, runtime.getJavaVersion()));
        }
        // pricing tier
        if (StringUtils.isNotEmpty(pricingTier) && PricingTier.fromString(pricingTier).isExpandedValue()) {
            AzureMessager.getMessager().warning(String.format(EXPANDABLE_PRICING_TIER_WARNING, pricingTier));
        }
        // docker image
        if (OperatingSystem.fromString(runtime.getOs()) == OperatingSystem.DOCKER && StringUtils.isEmpty(runtime.getImage())) {
            throw new AzureToolkitRuntimeException(EMPTY_IMAGE_NAME);
        }
    }