public VariableGapTermsIndexReader(Directory dir, FieldInfos fieldInfos, String segment, int indexDivisor,
String segmentSuffix, IOContext context)
{
input =
dir.OpenInput(
IndexFileNames.SegmentFileName(segment, segmentSuffix,
VariableGapTermsIndexWriter.TERMS_INDEX_EXTENSION), new IOContext(context, true));
this.segment = segment;
bool success = false;
Debug.Debug.Assert((indexDivisor == -1 || indexDivisor > 0);
try
{
version = readHeader(input);
this.indexDivisor = indexDivisor;
if (version >= VariableGapTermsIndexWriter.VERSION_CHECKSUM)
{
CodecUtil.ChecksumEntireFile(input);
}
SeekDir(in,
dirOffset)
;
// Read directory
int numFields = input.ReadVInt();
if (numFields < 0)
{
throw new CorruptIndexException("invalid numFields: " + numFields + " (resource=" + input + ")");
}
for (int i = 0; i < numFields; i++)
{
final
int field = in.
readVInt();
final
long indexStart = in.
readVLong();
final
FieldInfo fieldInfo = fieldInfos.fieldInfo(field);
FieldIndexData previous = fields.put(fieldInfo, new FieldIndexData(fieldInfo, indexStart));
if (previous != null)
{
throw new CorruptIndexException("duplicate field: " + fieldInfo.name + " (resource=" +in + ")" )
;
}
}
success = true;
}
finally
{
if (indexDivisor > 0)
{
in.
close();
in =
null;
if (success)
{
indexLoaded = true;
}
}
}