Dynamically Populating Select List Fields in the Configuration UI

You’ve always been able to provide a select list for your configuration options by entering each label and value directly in the @Meta.AD annotation of the Configuration interface.

    deflt = "enabled-with-warning", name = "csv-export",
    optionLabels = {"enabled", "enabled-with-warning", "disabled"},
    optionValues = {"enabled", "enabled-with-warning", "disabled"},
    required = false
public String csvExport();

Now, thanks to the ConfigurationFieldOptionsProvider interface, you can populate select list configurations dynamically, using custom logic.

Follow these steps to populate the select list fields dynamically in your configuration UI:

  1. Use an @Component annotation to register the ConfigurationFieldOptionsProvider.class service and include two properties:

    configuration.field.name: The name of the attribute in the configuration interface

    configuration.pid: The ID of the corresponding configuration interface (usually the fully qualified class name)

    For example,

    	property = {
    	service = ConfigurationFieldOptionsProvider.class
  2. Implement the ConfigurationFieldOptionsProvider interface:

    public class MyConfigurationFieldOptionsProvider implements 
    ConfigurationFieldOptionsProvider {
  3. The getOptions method returns a list of Options consisting of the label and value fields. The labels provided here are translated to optionLabels, and the values as optionValues, in the configuration interface.

    public List<Option> getOptions() {
    	List<AssetRendererFactory<?>> assetRendererFactories =
    	Stream<AssetRendererFactory<?>> stream =
    	return stream.filter(
    		assetRendererFactory -> {
    			TextExtractor textExtractor =
    			return textExtractor != null;
    		assetRendererFactory -> new Option() {
    			public String getLabel(Locale locale) {
    				return assetRendererFactory.getTypeName(locale);
    			public String getValue() {
    				return assetRendererFactory.getClassName();

    This code gets a list of AssetRendererFactory objects and iterates through the list, populating a new list of Options, using the asset’s type name as the label and the class name as the value. It comes from the EnabledClassNamesConfigurationFieldOptionsProvider, which populates the configuration field labeled Enable Google Cloud Natural Language Text Auto Tagging For with all the asset types that have registered a TextExtractor.

    Figure 1: The select list in the Google Cloud Natural Language Text Auto Tagging entry is populated programmatically, using the ConfigurationFieldOptionsProvider.

    Figure 1: The select list in the Google Cloud Natural Language Text Auto Tagging entry is populated programmatically, using the `ConfigurationFieldOptionsProvider`.

The ConfigurationFieldOptionsProvider allows you to populate select lists with configuration options defined by your custom logic.

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