public DocumentIndexer(ITaskScheduler scheduler, TimeSpan?refreshIndexSearcherThreadInterval = null, TimeSpan?commitChangesThreadInterval = null)
{
try
{
_scheduler = scheduler;
var solutionKey = ServiceLocator.Resolve <SolutionKey>();
var directoryInfo = new System.IO.DirectoryInfo(PathManager.Instance.GetIndexPath(solutionKey));
LuceneIndexesDirectory = FSDirectory.Open(directoryInfo);
Analyzer = ServiceLocator.Resolve <Analyzer>();
IndexWriter = new IndexWriter(LuceneIndexesDirectory, Analyzer, IndexWriter.MaxFieldLength.LIMITED);
Reader = IndexWriter.GetReader();
_indexSearcher = new IndexSearcher(Reader);
QueryParser = new QueryParser(Lucene.Net.Util.Version.LUCENE_29, Configuration.Configuration.GetValue("DefaultSearchFieldName"), Analyzer);
if (!refreshIndexSearcherThreadInterval.HasValue)
{
refreshIndexSearcherThreadInterval = TimeSpan.FromSeconds(10);
}
var refreshIndexSearcherBackgroundWorker = new BackgroundWorker {
WorkerReportsProgress = false, WorkerSupportsCancellation = false
};
refreshIndexSearcherBackgroundWorker.DoWork += PeriodicallyRefreshIndexSearcherIfNeeded;
refreshIndexSearcherBackgroundWorker.RunWorkerAsync(refreshIndexSearcherThreadInterval);
if (commitChangesThreadInterval.HasValue)
{
var commitChangesBackgroundWorker = new BackgroundWorker
{
WorkerReportsProgress = false,
WorkerSupportsCancellation = false
};
commitChangesBackgroundWorker.DoWork += PeriodicallyCommitChangesIfNeeded;
commitChangesBackgroundWorker.RunWorkerAsync(commitChangesThreadInterval);
}
else
{
_synchronousCommits = true;
}
}
catch (CorruptIndexException corruptIndexEx)
{
LogEvents.IndexCorruptError(this, corruptIndexEx);
throw new IndexerException(TranslationCode.Exception_Indexer_LuceneIndexIsCorrupt, corruptIndexEx);
}
catch (LockObtainFailedException lockObtainFailedEx)
{
LogEvents.IndexLockObtainFailed(this, lockObtainFailedEx);
throw new IndexerException(TranslationCode.Exception_Indexer_LuceneIndexAlreadyOpened, lockObtainFailedEx);
}
catch (System.IO.IOException ioEx)
{
LogEvents.IndexIOError(this, ioEx);
throw new IndexerException(TranslationCode.Exception_General_IOException, ioEx, ioEx.Message);
}
}