Map<String, Object> attrs = DublinCoreAttributesUtil.cleanup( _attrs );
attrs = DiscussionAttributesUtil.cleanup( attrs );
attrs = OtherMetaAttributesUtil.cleanup( attrs );
attrs.putAll( DiscussionAttributesUtil.toMap(
new DiscussionAttributes() {
@Override
public List<DiscussionRecord> discussion() {
return metadata.getDiscussion();
}