Using multiple feature enums with Togglz

MultiEnumFeatureProvider.java

public class MultiEnumFeatureProvider implements FeatureProvider {

  private final Set<Feature> features = new LinkedHashSet<>();

  public MultiEnumFeatureProvider( Class<? extends Feature>... enumTypes ) {
    for( Class<? extends Feature> clazz : enumTypes ) {
      for( Feature feature : clazz.getEnumConstants() ) {
        features.add( feature );
      }
    }
  }

  @Override
  public Set<Feature> getFeatures() {
    return Collections.unmodifiableSet( features );
  }

  @Override
  public FeatureMetaData getMetaData( Feature feature ) {
    return new EnumFeatureMetaData( getFeatureByName( feature.name() ) );
  }

  private Feature getFeatureByName( String name ) {
    for( Feature f : getFeatures() ) {
      if( f.name().equals( name ) ) {
        return f;
      }
    }
    throw new IllegalArgumentException( "Unknown feature: " + name );
  }

}

MyTogglzConfig.java

public class MyTogglzConfig implements TogglzBootstrap {

  @Override
  public FeatureManager createFeatureManager() {

    FeatureProvider featureProvider = new MultiEnumFeatureProvider( Features1.class, Features2.class );

    return new FeatureManagerBuilder()
        .featureProvider( featureProvider )
        .stateRepository( new InMemoryStateRepository() )
        .userProvider( new NoOpUserProvider() )
        .build();
    
  }

}