public void Init()
{
Version version = Version.LUCENE_30;
AnalyzerFactory afactory = new AnalyzerFactory(version);
langSearch = afactory.CreateSearchPacks(indexPath);
}
public static void IndexAllAdverts(string indexPath, string connectionString, Version version = Version.LUCENE_30)
{
try
{
// Initialize SQL connection and fetch all adverts.
SqlConnection conn = new SqlConnection(connectionString);
conn.Open();
SqlCommand command = new SqlCommand(
"SELECT Id, AccommodationType, Title, Description, Country, Region, Island, LanguageId, City FROM dbo.Advert", conn);
SqlDataReader reader = command.ExecuteReader();
// Initialize Lucene.Net index writers.
AnalyzerFactory afactory = new AnalyzerFactory(Version.LUCENE_30);
var writers = afactory.CreateWriters(indexPath);
// Initiate indexing options for individual fields.
int fieldCount = 8;
String[] fieldName = {"Id", "AccommodationType", "Title", "Description",
"Country", "Region", "Island", "City"};
Field.Store[] fieldStore = { Field.Store.YES, Field.Store.NO, Field.Store.NO, Field.Store.NO,
Field.Store.NO, Field.Store.NO, Field.Store.NO, Field.Store.NO };
Field.Index[] fieldIndex = { Field.Index.NO, Field.Index.ANALYZED, Field.Index.ANALYZED, Field.Index.ANALYZED,
Field.Index.ANALYZED, Field.Index.ANALYZED, Field.Index.ANALYZED, Field.Index.ANALYZED };
float[] fieldBoost = { 0, 2, 1, 1, 2.5F, 3, 3.5F, 4 };
// Index adverts one by one..
int count = 0;
while (reader.Read())
{
++count;
if (count % 100 == 0) Console.WriteLine(count);
Document advertDoc = new Document();
for (int i = 0; i < fieldCount; ++i)
{
Field field = new Field(fieldName[i], reader[fieldName[i]].ToString(), fieldStore[i], fieldIndex[i]);
field.Boost = fieldBoost[i];
advertDoc.Add(field);
}
int languageId = ("".Equals(reader["LanguageId"].ToString()) ? -1 : Int32.Parse(reader["LanguageId"].ToString()));
if (writers.ContainsKey(languageId))
{
writers[languageId].AddDocument(advertDoc);
}
}
// Cleanup.
foreach (var w in writers.Values)
{
w.Optimize();
w.Dispose();
}
conn.Close();
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
Console.WriteLine("Done!");
Console.Read();
}
