public IndexReader Create()
{
var directory = _directoryFactory.Create();
if (IndexReader.IndexExists(directory))
{
return(IndexReader.Open(directory, true));
}
//create an index and then open
using (var writer = _writerFactory.Create()) {
writer.Commit();
}
return(IndexReader.Open(_directoryFactory.Create(), true));
}
public void Write(IEnumerable <IRow> rows)
{
var tflKey = _output.Entity.TflKey();
using (var searcher = _searcherFactory.Create()) {
using (var writer = _writerFactory.Create()) {
foreach (var row in rows)
{
var tflId = string.Concat(_primaryKey.Select(pk => row[pk].ToString()));
var doc = new Document();
foreach (var field in _fieldSearchTypes.Where(field => field.SearchType.Store || field.SearchType.Index))
{
doc.Add(CreateField(field, row[field.Field]));
}
doc.Add(new LuceneField("TflId", tflId, LuceneField.Store.YES, LuceneField.Index.NOT_ANALYZED_NO_NORMS));
if (_output.Entity.IsFirstRun)
{
writer.AddDocument(doc);
}
else
{
var term = new Term("TflId", tflId);
var hits = searcher.Search(new TermQuery(term), null, 1);
if (hits.TotalHits > 0)
{
var old = searcher.Doc(hits.ScoreDocs[0].Doc);
doc.RemoveField(tflKey.Alias);
doc.Add(new NumericField(tflKey.Alias, LuceneField.Store.YES, true).SetIntValue(Convert.ToInt32(old.Get(tflKey.Alias))));
writer.UpdateDocument(term, doc);
}
else
{
writer.AddDocument(doc);
}
}
}
writer.Commit();
writer.Optimize();
}
}
}