internal void LoadIndex(LuceneSearcherState <TId, TDoc> state)
{
BeginLoad?.Invoke();
bool stateExisted = State != null;
if (!stateExisted)
{
State = state;
}
var index = CreateIndex(state);
if (index == null)
{
return;
}
state.Load(index);
if (stateExisted)
{
State.Dispose();
State = state;
}
Loaded?.Invoke();
}
protected virtual Directory CreateIndex(LuceneSearcherState <TId, TDoc> searcherState)
{
var spellchecker = CreateSpellchecker();
var state = CreateState(searcherState, spellchecker, loaded: false);
bool stateExisted = State != null;
if (!stateExisted)
{
State = state;
}
void progressHandler() =>
IndexingProgress?.Invoke();
state.IndexingProgress += progressHandler;
var result = state.CreateIndex();
state.IndexingProgress -= progressHandler;
if (stateExisted)
{
State.Dispose();
State = state;
}
return(result);
}
public void LoadIndex(LuceneSearcherState <TId, TDoc> searcherState)
{
if (!searcherState.IsLoaded)
{
throw new InvalidOperationException();
}
CreateIndex(searcherState);
}
protected virtual Directory CreateIndex(LuceneSearcherState <TId, TDoc> state)
{
void progressHandler() =>
IndexingProgress?.Invoke();
state.IndexingProgress += progressHandler;
var result = state.CreateIndex();
state.IndexingProgress -= progressHandler;
return(result);
}
protected LuceneSpellcheckerState(
Spellchecker spellchecker,
LuceneSearcherState <TId, TDoc> searcherState,
IDocumentAdapter <TId, TDoc> adapter,
Func <int> maxCount,
bool loaded)
{
_spellchecker = spellchecker;
_reader = searcherState.Reader;
_adapter = adapter;
_maxCount = maxCount;
IsLoaded = loaded;
}
protected abstract LuceneSpellcheckerState <TId, TDoc> CreateState(LuceneSearcherState <TId, TDoc> searcherState, Spellchecker spellchecker, bool loaded);
