private ThreadResources GetThreadResources()
{
ThreadResources resources = (ThreadResources)threadResources.Get();
if (resources == null)
{
resources = new ThreadResources();
resources.termEnum = Terms();
// Cache does not have to be thread-safe, it is only used by one thread at the same time
resources.termInfoCache = new SimpleLRUCache(DEFAULT_CACHE_SIZE);
threadResources.Set(resources);
}
return(resources);
}
/// <summary>Used by Analyzers that implement reusableTokenStream
/// to retrieve previously saved TokenStreams for re-use
/// by the same thread.
/// </summary>
protected internal virtual System.Object GetPreviousTokenStream()
{
try
{
return(tokenStreams.Get());
}
catch (System.NullReferenceException npe)
{
if (tokenStreams == null)
{
throw new AlreadyClosedException("this Analyzer is closed");
}
else
{
throw npe;
}
}
}
/// <summary> Create a clone from the initial TermVectorsReader and store it in the ThreadLocal.</summary>
/// <returns> TermVectorsReader
/// </returns>
private TermVectorsReader GetTermVectorsReader()
{
System.Diagnostics.Debug.Assert(termVectorsReaderOrig != null);
TermVectorsReader tvReader = (TermVectorsReader)termVectorsLocal.Get();
if (tvReader == null)
{
try
{
tvReader = (TermVectorsReader)termVectorsReaderOrig.Clone();
}
catch (System.Exception)
{
return(null);
}
termVectorsLocal.Set(tvReader);
}
return(tvReader);
}