if (similarityProvider != null) {
mapper.put("similarityPovider", similarityProvider.name());
mapper.put("similarity", similarityProvider.get().getClass().getName() );
}
PostingsFormatProvider postingsFormatProvider = fieldMapper.postingsFormatProvider();
if (postingsFormatProvider != null) {
mapper.put("postingsFormatProvider", postingsFormatProvider.name());
mapper.put("postingsFormat", postingsFormatProvider.get().getName());
}