/// <summary>
/// Get step doc index.
/// </summary>
/// <param name="position">first byte of the index (include step doc index)</param>
/// <param name="length">index buffer length</param>
/// <param name="count">count of the document records in this index</param>
/// <param name="indexPostion">first byte of the index (exclude step doc index)<</param>
/// <returns>step doc index. If no step doc index, return null</returns>
public List <DocumentPosition> GetStepDocIndex(long position, long length,
out int count, out long indexPostion)
{
Query.PerformanceReport performanceReport = new Hubble.Core.Query.PerformanceReport();
List <DocumentPosition> result;
//indexPostion = position;
_IndexFile.Seek(position, System.IO.SeekOrigin.Begin);
result = DocumentPositionList.DeserializeSkipDocIndex(_IndexFile, false, out count);
if (result != null)
{
count = DocumentPositionList.GetDocumentsCount(_IndexFile);
}
indexPostion = _IndexFile.Position; //The index position exclude count;
performanceReport.Stop(string.Format("Read index file: len={0}, {1} results. ", _IndexFile.Position - position,
count));
return(result);
}
private void GetSegmentStartStrings()
{
List <string> strList = new List <string>(256);
_File.Seek(0, SeekOrigin.Begin);
byte[] segment = new byte[SegmentSize];
if (Hubble.Framework.IO.File.ReadToBuffer(_File, segment))
{
do
{
string word;
long position;
long length;
if (UnicodeString.Decode(segment, 0, out word, "", out position, out length) >= 0)
{
strList.Add(word);
}
} while (Hubble.Framework.IO.File.ReadToBuffer(_File, segment));
}
_SegmentStartStrings = strList.ToArray();
}