/// <summary>
/// After top reader returned last data item in a file
/// </summary>
private void OnTopReaderFileFinished()
{
if (!this.TopReader.EndReached)
{
if (_onlineQueue.First.Next == null ||
TimestampComparer.Compare(
_onlineQueue.First.Next.Value.CurrentItem.DateTime
, TopReader.NextFileFirstTimestampToRead.Value) >= 0)
{
// there's no next reader or it contains older or equal item as the first item in
// the top reader's next file
// second in the queue must remain second; load next data file in the top reader
TopReader.LoadNextFile();
// update may be required because if data item timestamps are equal the DataItemComparer may change the order
UpdateTopReaderPosition();
}
else
{
// second reader is present and it has to move to the top
MoveTopReaderToOfflineQueue();
}
}
else
{
MoveTopReaderToExhaustedList();
}
}
public void Compare_Right()
{
TimestampComparer target = new TimestampComparer();
string leftFilename = "db_tbl_20111111111111.sql";
string rightFilename = "db_tbl_20111212121212.sql";
int expected = -1;
int actual;
actual = target.Compare(leftFilename, rightFilename);
Assert.AreEqual(expected, actual);
}
public void Compare_Empty()
{
TimestampComparer target = new TimestampComparer();
string leftFilename = string.Empty;
string rightFilename = string.Empty;
int expected = 0;
int actual;
actual = target.Compare(leftFilename, rightFilename);
Assert.AreEqual(expected, actual);
}