void FieldInfos::read(IndexInputPtr input, const String& fileName)
{
int32_t firstInt = input->readVInt();
format = firstInt < 0 ? firstInt : FORMAT_PRE; // This is a real format?
if (format != FORMAT_PRE && format != FORMAT_START)
boost::throw_exception(CorruptIndexException(L"unrecognized format " + StringUtils::toString(format) + L" in file \"" + fileName + L"\""));
int32_t size = format == FORMAT_PRE ? firstInt : input->readVInt(); // read in the size if required
for (int32_t i = 0; i < size; ++i)
{
String name(input->readString());
uint8_t bits = input->readByte();
addInternal(name, (bits & IS_INDEXED) != 0, (bits & STORE_TERMVECTOR) != 0, (bits & STORE_POSITIONS_WITH_TERMVECTOR) != 0,
(bits & STORE_OFFSET_WITH_TERMVECTOR) != 0, (bits & OMIT_NORMS) != 0, (bits & STORE_PAYLOADS) != 0,
(bits & OMIT_TERM_FREQ_AND_POSITIONS) != 0);
}
if (input->getFilePointer() != input->length())
{
boost::throw_exception(CorruptIndexException(L"did not read all bytes from file \"" + fileName + L"\": read " +
StringUtils::toString(input->getFilePointer()) + L" vs size " +
StringUtils::toString(input->length())));
}
}
virtual int64_t length() {
return input->length();
}