public override void SetNextReader(IndexReader reader, int docBase, IState state)
{
var currentReaderValues = FieldCache_Fields.DEFAULT.GetStringIndex(reader, _field, state);
_order = currentReaderValues.order;
_lookup = currentReaderValues.lookup;
}
protected internal static int BinarySearch(UnmanagedStringArray a, UnmanagedStringArray.UnmanagedString key, int low, int high)
{
while (low <= high)
{
int mid = Number.URShift((low + high), 1);
var midVal = a[mid];
int cmp;
if (midVal.IsNull == false)
{
cmp = UnmanagedStringArray.UnmanagedString.CompareOrdinal(midVal, key);
}
else
{
cmp = -1;
}
if (cmp < 0)
{
low = mid + 1;
}
else if (cmp > 0)
{
high = mid - 1;
}
else
{
return(mid);
}
}
return(-(low + 1));
}
public override void SetNextReader(IndexReader reader, int docBase, IState state)
{
StringIndex currentReaderValues = Lucene.Net.Search.FieldCache_Fields.DEFAULT.GetStringIndex(reader, field, state);
currentReaderGen++;
order = currentReaderValues.order;
lookup = currentReaderValues.lookup;
System.Diagnostics.Debug.Assert(lookup.Length > 0);
if (bottomSlot != -1)
{
Convert(bottomSlot);
bottomOrd = ords[bottomSlot];
}
}
/// <summary>Creates one of these objects </summary>
public StringIndex(int[] values, int[] reverseOrder, UnmanagedStringArray lookup)
{
this.order = values;
this.reverseOrder = reverseOrder;
this.lookup = lookup;
}
protected internal static int BinarySearch(UnmanagedStringArray a, UnmanagedStringArray.UnmanagedString key)
{
return(BinarySearch(a, key, 0, a.Length - 1));
}
protected internal override StringIndex CreateValue(IndexReader reader, Entry entryKey, IState state)
{
System.String field = StringHelper.Intern(entryKey.field);
int[] retArray = new int[reader.MaxDoc];
int[] retArrayOrdered = new int[reader.MaxDoc];
for (int i = 0; i < retArrayOrdered.Length; i++)
{
retArrayOrdered[i] = -1;
}
var length = reader.MaxDoc + 1;
UnmanagedStringArray mterms = new UnmanagedStringArray(length);
TermDocs termDocs = reader.TermDocs(state);
SegmentTermEnum termEnum = (SegmentTermEnum)reader.Terms(new Term(field), state);
int t = 0; // current term number
int docIndex = 0;
// an entry for documents that have no terms in this field
// should a document with no terms be at top or bottom?
// this puts them at the top - if it is changed, FieldDocSortedHitQueue
// needs to change as well.
t++;
try
{
do
{
if (termEnum.termBuffer.Field != field || t >= length)
{
break;
}
// store term text
mterms.Add(termEnum.termBuffer.TextAsSpan);
termDocs.Seek(termEnum, state);
while (termDocs.Next(state))
{
var pt = retArray[termDocs.Doc];
retArray[termDocs.Doc] = t;
if (pt == 0)
{
retArrayOrdered[docIndex++] = termDocs.Doc;
}
}
t++;
}while (termEnum.Next(state));
}
finally
{
termDocs.Close();
termEnum.Close();
}
StringIndex value_Renamed = new StringIndex(retArray, retArrayOrdered, mterms);
return(value_Renamed);
}
