protected internal virtual IndexReader DoReopen(bool doClone)
{
EnsureOpen();
bool reopened = false;
System.Collections.IList newReaders = new System.Collections.ArrayList();
bool success = false;
try
{
for (int i = 0; i < readers.Count; i++)
{
IndexReader oldReader = (IndexReader)readers[i];
IndexReader newReader = null;
if (doClone)
{
newReader = (IndexReader)oldReader.Clone();
}
else
{
newReader = oldReader.Reopen();
}
newReaders.Add(newReader);
// if at least one of the subreaders was updated we remember that
// and return a new ParallelReader
if (newReader != oldReader)
{
reopened = true;
}
}
success = true;
}
finally
{
if (!success && reopened)
{
for (int i = 0; i < newReaders.Count; i++)
{
IndexReader r = (IndexReader)newReaders[i];
if (r != readers[i])
{
try
{
r.Close();
}
catch (System.IO.IOException ignore)
{
// keep going - we want to clean up as much as possible
}
}
}
}
}
if (reopened)
{
System.Collections.IList newDecrefOnClose = new System.Collections.ArrayList();
ParallelReader pr = new ParallelReader();
for (int i = 0; i < readers.Count; i++)
{
IndexReader oldReader = (IndexReader)readers[i];
IndexReader newReader = (IndexReader)newReaders[i];
if (newReader == oldReader)
{
newDecrefOnClose.Add(true);
newReader.IncRef();
}
else
{
// this is a new subreader instance, so on close() we don't
// decRef but close it
newDecrefOnClose.Add(false);
}
pr.Add(newReader, !storedFieldReaders.Contains(oldReader));
}
pr.decrefOnClose = newDecrefOnClose;
pr.incRefReaders = incRefReaders;
return(pr);
}
else
{
// No subreader was refreshed
return(this);
}
}
