/// <summary>
/// Maps database fields from incoming data source to the Lucene class Document
/// and adds it to the search index. String or text properties are marked as
/// ANALYZED, and int or single value properties are marked as NON_ANALYZED.
/// </summary>
/// <param name="data"></param>
/// <param name="writer"></param>
private static void AddToLuceneIndex(LuceneData data, IndexWriter writer)
{
if (data == null)
{
return;
}
// removing old index query
var query = new TermQuery(new Term("Id", data.Id.ToString()));
writer.DeleteDocuments(query);
// adding new index entry
var document = new Document();
// adding lucene fields and mapping them to db fields
document.Add(new Field("Id", data.Id.ToString(), Field.Store.YES, Field.Index.NOT_ANALYZED));
document.Add(new Field("InternalId", data.InternalId.ToString(), Field.Store.YES, Field.Index.NOT_ANALYZED));
document.Add(new Field("PubDate", data.PubDate.ToString(), Field.Store.YES, Field.Index.ANALYZED));
document.Add(new Field("Author", data.Author, Field.Store.YES, Field.Index.ANALYZED));
document.Add(new Field("Title", data.Title, Field.Store.YES, Field.Index.ANALYZED));
document.Add(new Field("Type", data.Type, Field.Store.YES, Field.Index.ANALYZED));
document.Add(new Field("Tags", data.Tags, Field.Store.YES, Field.Index.ANALYZED));
document.Add(new Field("Link", data.Link, Field.Store.YES, Field.Index.NOT_ANALYZED));
document.Add(new Field("Description", data.Description, Field.Store.YES, Field.Index.ANALYZED));
// adding entry to index
writer.AddDocument(document);
}
/// <summary>
/// Adds a single record to the Lucene search index.
/// </summary>
/// <param name="data"></param>
public static void AddUpdateLuceneIndex(LuceneData data)
{
AddUpdateLuceneIndex(new List <LuceneData> {
data
});
}
