public SepPostingsWriter(SegmentWriteState state, Int32StreamFactory factory, int skipInterval)
{
freqOut = null;
freqIndex = null;
posOut = null;
posIndex = null;
payloadOut = null;
bool success = false;
try
{
this.skipInterval = skipInterval;
this.skipMinimum = skipInterval; /* set to the same for now */
string docFileName = IndexFileNames.SegmentFileName(state.SegmentInfo.Name, state.SegmentSuffix, DOC_EXTENSION);
docOut = factory.CreateOutput(state.Directory, docFileName, state.Context);
docIndex = docOut.GetIndex();
if (state.FieldInfos.HasFreq)
{
string frqFileName = IndexFileNames.SegmentFileName(state.SegmentInfo.Name, state.SegmentSuffix, FREQ_EXTENSION);
freqOut = factory.CreateOutput(state.Directory, frqFileName, state.Context);
freqIndex = freqOut.GetIndex();
}
if (state.FieldInfos.HasProx)
{
string posFileName = IndexFileNames.SegmentFileName(state.SegmentInfo.Name, state.SegmentSuffix, POS_EXTENSION);
posOut = factory.CreateOutput(state.Directory, posFileName, state.Context);
posIndex = posOut.GetIndex();
// TODO: -- only if at least one field stores payloads?
string payloadFileName = IndexFileNames.SegmentFileName(state.SegmentInfo.Name, state.SegmentSuffix, PAYLOAD_EXTENSION);
payloadOut = state.Directory.CreateOutput(payloadFileName, state.Context);
}
string skipFileName = IndexFileNames.SegmentFileName(state.SegmentInfo.Name, state.SegmentSuffix, SKIP_EXTENSION);
skipOut = state.Directory.CreateOutput(skipFileName, state.Context);
totalNumDocs = state.SegmentInfo.DocCount;
skipListWriter = new SepSkipListWriter(skipInterval,
maxSkipLevels,
totalNumDocs,
freqOut, docOut,
posOut, payloadOut);
success = true;
}
finally
{
if (!success)
{
IOUtils.CloseWhileHandlingException(docOut, skipOut, freqOut, posOut, payloadOut);
}
}
}
// Called @ start of new term
/// <exception cref="IOException"/>
protected internal void ResetSkip(Int32IndexOutput.Index topDocIndex, Int32IndexOutput.Index topFreqIndex, Int32IndexOutput.Index topPosIndex)
{
base.ResetSkip();
Arrays.Fill(lastSkipDoc, 0);
Arrays.Fill(lastSkipPayloadLength, -1); // we don't have to write the first length in the skip list
for (int i = 0; i < m_numberOfSkipLevels; i++)
{
docIndex[i].CopyFrom(topDocIndex, true);
if (freqOutput != null)
{
freqIndex[i].CopyFrom(topFreqIndex, true);
}
if (posOutput != null)
{
posIndex[i].CopyFrom(topPosIndex, true);
}
}
if (payloadOutput != null)
{
Arrays.Fill(lastSkipPayloadPointer, payloadOutput.Position); // LUCENENET specific: Renamed from getFilePointer() to match FileStream
}
}
/// <summary>
/// Called @ start of new term.
/// </summary>
protected internal virtual void ResetSkip(Int32IndexOutput.Index topDocIndex, Int32IndexOutput.Index topFreqIndex,
Int32IndexOutput.Index topPosIndex)
{
base.ResetSkip();
Arrays.Fill(_lastSkipDoc, 0);
Arrays.Fill(_lastSkipPayloadLength, -1); // we don't have to write the first length in the skip list
for (int i = 0; i < m_numberOfSkipLevels; i++)
{
_docIndex[i].CopyFrom(topDocIndex, true);
if (_freqOutput != null)
{
_freqIndex[i].CopyFrom(topFreqIndex, true);
}
if (_posOutput != null)
{
_posIndex[i].CopyFrom(topPosIndex, true);
}
}
if (_payloadOutput != null)
{
Arrays.Fill(_lastSkipPayloadPointer, _payloadOutput.GetFilePointer());
}
}