code: private VariantResourceReaderStrategy getVariantStrategy(GeneratorContext context,
  			Map<String, VariantSet> variantSetMap) {
  
  		VariantResourceReaderStrategy strategy = null;
  		try {
  			strategy = (VariantResourceReaderStrategy) resourceProviderStrategyClass.newInstance();
  			strategy.initVariantProviderStrategy(context, variantSetMap);
  		} catch (InstantiationException | IllegalAccessException e) {
  			throw new BundlingProcessException(e);
  		}
  
  		return strategy;
  	}
docs: Returns the variant strategy
  
  @param context
  the generator context
  @param variantSetMap
  the variantSet map for the current path
  @return the variant strategy