protected static void writeCommentEntity(Comment entity, JsonGenerator jg) throws IOException {
jg.writeStringField(COMMENT_ID_FIELD, entity.getId());
jg.writeStringField(COMMENT_PARENT_ID_FIELD, entity.getParentId());
jg.writeArrayFieldStart(COMMENT_ANCESTOR_IDS_FIELD);
for (String ancestorId : entity.getAncestorIds()) {
jg.writeString(ancestorId);
}
jg.writeEndArray();
jg.writeStringField(COMMENT_AUTHOR_FIELD, entity.getAuthor());
jg.writeStringField(COMMENT_TEXT_FIELD, entity.getText());
String creationDate = entity.getCreationDate() != null ? entity.getCreationDate().toString() : null;
jg.writeStringField(COMMENT_CREATION_DATE_FIELD, creationDate);
String modificationDate = entity.getModificationDate() != null ? entity.getModificationDate().toString() : null;
jg.writeStringField(COMMENT_MODIFICATION_DATE_FIELD, modificationDate);
if (entity instanceof ExternalEntity) {
jg.writeStringField(EXTERNAL_ENTITY_ID, ((ExternalEntity) entity).getEntityId());
jg.writeStringField(EXTERNAL_ENTITY_ORIGIN, ((ExternalEntity) entity).getOrigin());
jg.writeStringField(EXTERNAL_ENTITY, ((ExternalEntity) entity).getEntity());
}
}