class DefaultAtlasSession implements AtlasInternalSession {

    @Override
    public AtlasFieldReader getFieldReader(String docId) {
        if (docId == null || docId.isEmpty()) {
            return this.fieldReaderMap.get(AtlasConstants.DEFAULT_SOURCE_DOCUMENT_ID);
        }
        return this.fieldReaderMap.get(docId);
    }

    public  DefaultAtlasSession(DefaultAtlasContext context);

}