private void AddFixedDerefBytesField(FieldInfo field, IndexOutput data, IndexOutput index, IEnumerable <BytesRef> values, int length)
{
field.PutAttribute(legacyKey, LegacyDocValuesType.BYTES_FIXED_DEREF.ToString());
CodecUtil.WriteHeader(data, Lucene40DocValuesFormat.BYTES_FIXED_DEREF_CODEC_NAME_DAT, Lucene40DocValuesFormat.BYTES_FIXED_DEREF_VERSION_CURRENT);
CodecUtil.WriteHeader(index, Lucene40DocValuesFormat.BYTES_FIXED_DEREF_CODEC_NAME_IDX, Lucene40DocValuesFormat.BYTES_FIXED_DEREF_VERSION_CURRENT);
// deduplicate
JCG.SortedSet <BytesRef> dictionary = new JCG.SortedSet <BytesRef>();
foreach (BytesRef v in values)
{
dictionary.Add(v == null ? new BytesRef() : BytesRef.DeepCopyOf(v));
}
/* values */
data.WriteInt32(length);
foreach (BytesRef v in dictionary)
{
data.WriteBytes(v.Bytes, v.Offset, v.Length);
}
/* ordinals */
int valueCount = dictionary.Count;
if (Debugging.AssertsEnabled)
{
Debugging.Assert(valueCount > 0);
}
index.WriteInt32(valueCount);
int maxDoc = state.SegmentInfo.DocCount;
PackedInt32s.Writer w = PackedInt32s.GetWriter(index, maxDoc, PackedInt32s.BitsRequired(valueCount - 1), PackedInt32s.DEFAULT);
BytesRef brefDummy;
foreach (BytesRef v in values)
{
brefDummy = v;
if (v == null)
{
brefDummy = new BytesRef();
}
//int ord = dictionary.HeadSet(brefDummy).Size();
int ord = dictionary.Count(@ref => @ref.CompareTo(brefDummy) < 0);
w.Add(ord);
}
w.Finish();
}