/// <summary>
/// Rebuild Index
/// </summary>
private void RebuildIndex(List <Record_Language> recordLanguages, string indexPath)
{
var defaultLanguageID = AppSettingsUtility.GetGuid(AppSettingsKeys.DefaultLanguageID);
Guid descriptionVariableID = new Guid(AppSettingsUtility.GetString(AppSettingsKeys.DescriptionVariableID));
foreach (var recordLanguage in recordLanguages)
{
SiteSearchItem siteSearchItem = new SiteSearchItem();
siteSearchItem.ID = recordLanguage.ID.ToString();
siteSearchItem.Title = recordLanguage.Name;
var descriptionVariable = recordLanguage.Record.Variables.Where(r => r.VariableID == descriptionVariableID && r.LanguageID == defaultLanguageID).FirstOrDefault();
if (descriptionVariable != null)
{
siteSearchItem.Description = descriptionVariable.Value;
}
siteSearchItem.URL = new RecordData().GetRecordUrl(recordLanguage.ID, recordLanguage.Name);
siteSearchItem.IsDeleted = recordLanguage.Record.IsDeleted || !recordLanguage.Record.IsActive;
SiteSearchService.SaveToIndex(siteSearchItem, indexPath);
recordProcessed++;
}
}
/// <summary>
/// Save to Index
/// </summary>
/// <param name="item"></param>
/// <param name="indexPath"></param>
public static bool SaveToIndex(SiteSearchItem item, string indexPath)
{
bool isSuceess = false;
try
{
//Delete First
DeleteIndex(item, indexPath);
if (item.IsDeleted)
{
return(true);
}
//Add to index
var indexDirectory = FSDirectory.Open(new DirectoryInfo(indexPath));
var analyzer = new Lucene.Net.Analysis.Standard.StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_30);
var writer = new Lucene.Net.Index.IndexWriter(indexDirectory, analyzer, IndexWriter.MaxFieldLength.UNLIMITED);
var doc = new Document();
doc.Add(new Field("ID", item.ID, Field.Store.YES, Field.Index.NOT_ANALYZED));
//Set Boost in title
var titleField = new Field("Title", item.Title, Field.Store.YES, Field.Index.ANALYZED);
titleField.Boost = 1.3f;
doc.Add(titleField);
//Set Boost in Description
var descriptionField = new Field("Description", item.Description, Field.Store.YES, Field.Index.ANALYZED);
descriptionField.Boost = 1.1f;
doc.Add(descriptionField);
//Default boost 1f in Document Description
doc.Add(new Field("DocumentDescription", item.DocumentDescription, Field.Store.YES, Field.Index.ANALYZED));
doc.Add(new Field("URL", item.URL, Field.Store.YES, Field.Index.NOT_ANALYZED));
writer.AddDocument(doc);
analyzer.Close();
writer.Dispose();
isSuceess = true;
}
catch (Exception ex)
{
ErrorLog.WriteLog("SiteSearchService", "SaveToIndex", ex, string.Empty);
}
return(isSuceess);
}
/// <summary>
/// Delete Index
/// </summary>
/// <param name="item"></param>
private static void DeleteIndex(SiteSearchItem item, string indexPath)
{
try
{
var indexDirectory = FSDirectory.Open(new DirectoryInfo(indexPath));
IndexReader reader = IndexReader.Open(indexDirectory, false);
reader.DeleteDocuments(new Term("ID", item.ID));
reader.Dispose();
}
catch (Exception ex)
{
ErrorLog.WriteLog("SiteSearchService", "DeleteIndex", ex, string.Empty);
}
}
/// <summary>
/// Map Lucene Document to Data
/// </summary>
/// <param name="doc"></param>
/// <returns></returns>
private static SiteSearchItem MapLuceneDocumentToData(Document doc)
{
SiteSearchItem item = new SiteSearchItem();
item.ID = doc.Get("ID");
item.Title = doc.Get("Title");
var description = doc.Get("Description");
description = description.StripHTMLTagsRegex();
description = description.StripText(300);
item.Description = description;
item.DocumentDescription = doc.Get("DocumentDescription");
item.URL = doc.Get("URL");
return(item);
}
/// <summary>
/// Save To Index
/// </summary>
/// <param name="item"></param>
/// <param name="indexPath"></param>
/// <returns></returns>
public static void SaveToIndexAsync(SiteSearchItem item, string indexPath)
{
Task.Run(() => SaveToIndex(item, indexPath));
}