/// <summary>Return all term vectors stored for this document or null if the could not be read in. </summary>
internal virtual TermFreqVector[] Get(int docNum)
{
lock (this)
{
TermFreqVector[] result = null;
// Check if no term vectors are available for this segment at all
if (tvx != null)
{
try
{
//We need to offset by
tvx.Seek((docNum * 8L) + TermVectorsWriter.FORMAT_SIZE);
long position = tvx.ReadLong();
tvd.Seek(position);
int fieldCount = tvd.ReadVInt();
// No fields are vectorized for this document
if (fieldCount != 0)
{
int number = 0;
System.String[] fields = new System.String[fieldCount];
for (int i = 0; i < fieldCount; i++)
{
number += tvd.ReadVInt();
fields[i] = fieldInfos.FieldName(number);
}
// Compute position in the tvf file
position = 0;
long[] tvfPointers = new long[fieldCount];
for (int i = 0; i < fieldCount; i++)
{
position += tvd.ReadVLong();
tvfPointers[i] = position;
}
result = ReadTermVectors(fields, tvfPointers);
}
}
catch (System.IO.IOException e)
{
Console.Error.Write(e.StackTrace);
Console.Error.Flush();
}
}
else
{
System.Console.Out.WriteLine("No tvx file");
}
return(result);
}
}
private Term ReadTerm()
{
int start = input.ReadVInt();
int length = input.ReadVInt();
int totalLength = start + length;
if (buffer.Length < totalLength)
{
GrowBuffer(totalLength);
}
input.ReadChars(buffer, start, length);
return(new Term(fieldInfos.FieldName(input.ReadVInt()), new System.String(buffer, 0, totalLength), false));
}