LuceneIndexTask.cs :  » Network-Clients » iReaper » IReaper » IndexBuilder » WWESource » C# / CSharp Open Source

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C# / CSharp Open Source » Network Clients » iReaper 
iReaper » IReaper » IndexBuilder » WWESource » LuceneIndexTask.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using Lucene.Net.Store;
using Lucene.Net.Index;
using Lucene.Net.Documents;

namespace iReaper.IndexBuilder.WWESource{
    public class LuceneIndexTask : ITask
    {
        #region ITask Members

        public void Initialize()
        {
            return;
        }

        public void Invoke()
        {
            string _folderConf = System.Configuration.ConfigurationSettings.AppSettings["TempFolder"];
            System.Xml.Serialization.XmlSerializer serializer = new System.Xml.Serialization.XmlSerializer(typeof(EventItem[]));
            EventItem[] items = null;
            using (FileStream fs = File.OpenRead(Path.Combine(_folderConf, "searchResult.xml")))
            {
                items = (EventItem[])serializer.Deserialize(fs);
                fs.Close();
            }
            // Build index
            SimpleFSDirectory dir = new SimpleFSDirectory(new DirectoryInfo(@".\Index"));
            IndexWriter writer = new IndexWriter(dir, new Lucene.Net.Analysis.CJK.CJKAnalyzer(), true, IndexWriter.MaxFieldLength.UNLIMITED);

            foreach (var item in items)
            {
                Document doc = new Document();

                // id
                doc.Add(new Field("id", item.EventID, Field.Store.YES, Field.Index.NOT_ANALYZED_NO_NORMS));
                // title
                doc.Add(new Field("", item.Title, Field.Store.NO, Field.Index.ANALYZED));
                // description
                doc.Add(new Field("", item.Description, Field.Store.NO, Field.Index.ANALYZED));
                // date
                doc.Add(new Field("date", DateTools.DateToString(item.StartData, DateTools.Resolution.DAY), Field.Store.YES, Field.Index.NOT_ANALYZED_NO_NORMS));
                // store
                writer.AddDocument(doc);
            }

            writer.Close();
        }

        public event EventHandler<ProgressEventArgs> OnProgress;

        #endregion
    }
}
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