/// <summary>
/// Creates a new iterator, buffering entries from the specified iterator
/// </summary>
public BufferingTermFreqIteratorWrapper(TermFreqIterator source)
{
this.comp = source.Comparator;
BytesRef spare;
int freqIndex = 0;
while ((spare = source.Next()) != null)
{
entries.Append(spare);
if (freqIndex >= freqs.Length)
{
freqs = ArrayUtil.Grow(freqs, freqs.Length + 1);
}
freqs[freqIndex++] = source.Weight;
}
}
/// <summary>
/// Creates a new iterator, buffering entries from the specified iterator
/// </summary>
public BufferingTermFreqIteratorWrapper(TermFreqIterator source)
{
this.comp = source.Comparator;
BytesRef spare;
int freqIndex = 0;
while ((spare = source.Next()) != null)
{
entries.Append(spare);
if (freqIndex >= freqs.Length)
{
freqs = ArrayUtil.Grow(freqs, freqs.Length + 1);
}
freqs[freqIndex++] = source.Weight;
}
}
private OfflineSorter.ByteSequencesReader Sort()
{
string prefix = this.GetType().Name;
File directory = OfflineSorter.DefaultTempDir();
tempInput = File.createTempFile(prefix, ".input", directory);
tempSorted = File.createTempFile(prefix, ".sorted", directory);
var writer = new OfflineSorter.ByteSequencesWriter(tempInput);
bool success = false;
try
{
BytesRef spare;
sbyte[] buffer = new sbyte[0];
ByteArrayDataOutput output = new ByteArrayDataOutput(buffer);
while ((spare = source.Next()) != null)
{
Encode(writer, output, buffer, spare, source.Weight);
}
writer.Dispose();
(new OfflineSorter(tieBreakByCostComparator)).Sort(tempInput, tempSorted);
OfflineSorter.ByteSequencesReader reader = new OfflineSorter.ByteSequencesReader(tempSorted);
success = true;
return(reader);
}
finally
{
if (success)
{
IOUtils.Close(writer);
}
else
{
try
{
IOUtils.CloseWhileHandlingException(writer);
}
finally
{
Close();
}
}
}
}