/// <summary>
/// Remove facet documents from the existing index.
/// </summary>
/// <param name="directoryIndexInfo">The directory infomation where the index files are located.</param>
/// <param name="directoryFacetInfo">The directory infomation where the facet files are to be placed.</param>
/// <param name="textNames">The array of names for text data.</param>
/// <param name="filePaths">The array of full paths (without root 'C:\'. e.g. 'temp/http/index.html') for file documents.</param>
public void RemoveMultiFacetDocuments(DirectoryInfo directoryIndexInfo, DirectoryInfo directoryFacetInfo, string[] textNames, string[] filePaths)
{
Lucene.Net.Index.IndexWriter writer = null;
DirectoryTaxonomyWriter facetWriter = null;
Lucene.Net.Store.Directory directory = null;
Lucene.Net.Store.Directory directoryFacet = null;
try
{
// Create the analyzer.
SimpleAnalyzer simpleAnalyzer = new Analyzer.SimpleAnalyzer();
StandardAnalyzer standardAnalyzer = new Analyzer.StandardAnalyzer(simpleAnalyzer);
// Create the index writer.
directory = FSDirectory.Open(directoryIndexInfo);
IndexWriterConfig indexConfig = new IndexWriterConfig(Lucene.Net.Util.LuceneVersion.LUCENE_48, standardAnalyzer);
indexConfig.SetOpenMode(IndexWriterConfig.OpenMode_e.APPEND);
// Open existing or create new.
writer = new IndexWriter(directory, indexConfig);
// Create the facet writer.
directoryFacet = FSDirectory.Open(directoryFacetInfo);
facetWriter = new DirectoryTaxonomyWriter(directoryFacet, IndexWriterConfig.OpenMode_e.APPEND);
// Create the delet query.
FacetFilter filter = new FacetFilter();
Query[] queries = filter.RemoveDocuments(textNames, filePaths);
writer.DeleteDocuments(queries);
// Commit the index.
writer.Commit();
facetWriter.Commit();
}
catch (Exception)
{
throw;
}
finally
{
if (writer != null)
{
writer.Dispose();
}
if (directory != null)
{
directory.Dispose();
}
}
}