/** Returns the next (complete) record from the stream, or null if there are no more. */
public Record nextRecord() {
Record r;
r = getNextUnreadRecord();
if (r != null) {
// found an unread record
return r;
}
while (true) {
if (!_recStream.hasNextRecord()) {
// recStream is exhausted;
return null;
}
if (_lastRecordWasEOFLevelZero) {
// Potential place for ending the workbook stream
// Check that the next record is not BOFRecord(0x0809)
// Normally the input stream contains only zero padding after the last EOFRecord,
// but bug 46987 and 48068 suggests that the padding may be garbage.
// This code relies on the padding bytes not starting with BOFRecord.sid
if (_recStream.getNextSid() != BOFRecord.sid) {
return null;
}
// else - another sheet substream starting here
}
// step underlying RecordInputStream to the next record
_recStream.nextRecord();
r = readNextRecord();
if (r == null) {
// some record types may get skipped (e.g. DBCellRecord and ContinueRecord)
continue;
}
return r;
}
}
