public override void Files(SegmentCommitInfo info, ICollection <string> files)
{
if (info.HasDeletions())
{
files.Add(IndexFileNames.FileNameFromGeneration(info.Info.Name, LIVEDOCS_EXTENSION, info.DelGen));
}
}
public override Bits ReadLiveDocs(Directory dir, SegmentCommitInfo info, IOContext context)
{
Debug.Assert(info.HasDeletions());
var scratch = new BytesRef();
var scratchUtf16 = new CharsRef();
var fileName = IndexFileNames.FileNameFromGeneration(info.Info.Name, LIVEDOCS_EXTENSION, info.DelGen);
ChecksumIndexInput input = null;
var success = false;
try
{
input = dir.OpenChecksumInput(fileName, context);
SimpleTextUtil.ReadLine(input, scratch);
Debug.Assert(StringHelper.StartsWith(scratch, SIZE));
var size = ParseIntAt(scratch, SIZE.Length, scratchUtf16);
var bits = new BitArray(size);
SimpleTextUtil.ReadLine(input, scratch);
while (!scratch.Equals(END))
{
Debug.Assert(StringHelper.StartsWith(scratch, DOC));
var docid = ParseIntAt(scratch, DOC.Length, scratchUtf16);
bits.Set(docid, true);
SimpleTextUtil.ReadLine(input, scratch);
}
SimpleTextUtil.CheckFooter(input);
success = true;
return(new SimpleTextBits(bits, size));
}
finally
{
if (success)
{
IOUtils.Close(input);
}
else
{
IOUtils.CloseWhileHandlingException(input);
}
}
}
public override void WriteLiveDocs(MutableBits bits, Directory dir, SegmentCommitInfo info, int newDelCount,
IOContext context)
{
var set = ((SimpleTextBits)bits).BITS;
var size = bits.Length();
var scratch = new BytesRef();
var fileName = IndexFileNames.FileNameFromGeneration(info.Info.Name, LIVEDOCS_EXTENSION, info.NextDelGen);
IndexOutput output = null;
var success = false;
try
{
output = dir.CreateOutput(fileName, context);
SimpleTextUtil.Write(output, SIZE);
SimpleTextUtil.Write(output, Convert.ToString(size), scratch);
SimpleTextUtil.WriteNewline(output);
for (int i = set.NextSetBit(0); i >= 0; i = set.NextSetBit(i + 1))
{
SimpleTextUtil.Write(output, DOC);
SimpleTextUtil.Write(output, Convert.ToString(i), scratch);
SimpleTextUtil.WriteNewline(output);
}
SimpleTextUtil.Write(output, END);
SimpleTextUtil.WriteNewline(output);
SimpleTextUtil.WriteChecksum(output, scratch);
success = true;
}
finally
{
if (success)
{
IOUtils.Close(output);
}
else
{
IOUtils.CloseWhileHandlingException(output);
}
}
}