private void internalReset(String term) throws IOException {
if (indexFile != null) {
if (index == null) {
index =
new ImmutableBTreeIndex.Reader<String, LongPair>(
indexFile, new StringSerializer(), new LongPairSerializer(), false);
}
Generation.Entry<String, LongPair> e = index.floor(term);
if (e == null) {
e = index.first();
}
lastTermBytes = e.getKey().getBytes(Charsets.UTF_8);
lastTermByteBuffer = ByteBuffer.wrap(lastTermBytes);
lastTermLength = lastTermBytes.length;
lastString = null;
final LongPair p = e.getValue();
refillBuffer(p.getFirst());
lastTermOffset = p.getSecond();
lastTermDocFreq = (int) readVLong();
done = false;
while (decoder
.decode((ByteBuffer) lastTermByteBuffer.position(0).limit(lastTermLength))
.toString()
.compareTo(term)
< 0
&& next()) {}
bufferNext = true;
} else {
lastTermLength = 0;
lastTermOffset = 0L;
lastTermDocFreq = 0;
lastString = null;
bufferLen = 0;
bufferOffset = 0L;
bufferPtr = 0;
done = false;
while (next()
&& new String(lastTermBytes, 0, lastTermLength, Charsets.UTF_8).compareTo(term) < 0) {}
bufferNext = true;
}
}
@Override
public void close() {
if (!closed) {
try {
if (index != null) {
index.close();
}
} catch (IOException e) {
log.error("error closing index", e);
}
try {
file.close();
} catch (IOException e) {
log.error("error closing file", e);
}
closed = true;
}
}