/// <summary>
/// 查找指定字段Term
/// </summary>
/// <param name="field"></param>
/// <param name="text"></param>
/// <param name="current"></param>
/// <returns></returns>
public TermModel FindTerm(string field, string text, bool current)
{
TermEnum enum2 = open.Reader.Terms();
if (enum2.SkipTo(new Term(field, text)))
{
TermModel modle2 = null;
while ((!current && enum2.Next() && field.Equals(enum2.Term().Field())) ||
current)
{
modle2 = new TermModel(enum2.Term(), enum2.DocFreq());
break;
}
enum2.Close();
return(modle2);
}
return(null);
}
public void End(bool shouldClose)
{
if (!_is_started)
{
return;
}
if (!shouldClose)
{
return;
}
//build 2del file list
if (!_job_status.Cancelled)
{
TermEnum term_enum = _index_reader.Terms();
Term path_term = new Term("path");
int nb_terms = 0;
while (term_enum.SkipTo(path_term)) //skip to new term equal or *ABOVE* "path:" !!!
{
Term term = term_enum.Term();
if (term.Field() != path_term.Field())
{
break;
}
if (!File.Exists(term.Text()))
{
_del_file_list.Add(term.Text());
}
if (_job_status.Cancelled)
{
break;
}
nb_terms++;
}
term_enum.Close();
Logger.Log.Info("update: deletion: {0} analyzed terms, found {1} vanished files.", nb_terms, _del_file_list.Count);
}
_index_searcher.Close();
_index_reader.Close();
//--- deleting deprecated
if ((_del_file_list.Count > 0) && (!_job_status.Cancelled))
{
Stopwatch watch = new Stopwatch();
watch.Start();
int num_file = 0;
int nb_files = _del_file_list.Count;
IndexWriter writer = new IndexWriter(_index_path, _default_analyzer, false);
foreach (string path in _del_file_list)
{
if (((num_file++) % 101) == 1)
{
int progress = ((((num_file++) + 1)) * 100) / nb_files;
_job_status.Progress = progress;
_job_status.Description = String.Format("upd: removing (from index) file {0}/{1} - {2}", num_file, _del_file_list.Count,
StringFu.TimeSpanToString(new TimeSpan((long)(watch.ElapsedMilliseconds) * 10000)));
}
if (_job_status.Cancelled)
{
break;
}
writer.DeleteDocuments(new Term("path", path));
}
writer.Commit();
writer.Close();
watch.Stop();
}
//adding new files
if ((_add_file_list.Count > 0) && (!_job_status.Cancelled))
{
Stopwatch watch = new Stopwatch();
watch.Start();
IndexWriter writer = null;
try
{
writer = new IndexWriter(_index_path, _default_analyzer, false, new IndexWriter.MaxFieldLength(IndexWriter.DEFAULT_MAX_FIELD_LENGTH));
int num_file = 0;
int nb_files = _add_file_list.Count;
foreach (BasicFileInfo fi in _add_file_list)
{
if (((num_file++) % 101) == 1)
{
int progress = ((((num_file++) + 1)) * 100) / nb_files;
_job_status.Progress = progress;
_job_status.Description = String.Format("upd: indexing new file {0}/{1} - {2}", num_file, _add_file_list.Count,
StringFu.TimeSpanToString(new TimeSpan((long)(watch.ElapsedMilliseconds) * 10000)));
}
if (_job_status.Cancelled)
{
break;
}
writer.AddDocument(_doc_factory.CreateFromPath(fi.FilePath, fi.LastModification));
if (num_file % 20 == 0)
{
writer.Commit();
}
}
writer.Commit();
}
catch (System.Exception ex)
{
Log.Error(ex);
}
finally
{
if (writer != null)
{
writer.Close();
writer = null;
}
}
watch.Stop();
}
//updating modified files
if ((_upd_file_list.Count > 0) && (!_job_status.Cancelled))
{
Stopwatch watch = new Stopwatch();
watch.Start();
int num_file = 0;
int nb_files = _upd_file_list.Count;
IndexWriter writer = null;
try
{
writer = new IndexWriter(_index_path, _default_analyzer, false,
new IndexWriter.MaxFieldLength(IndexWriter.DEFAULT_MAX_FIELD_LENGTH));
foreach (BasicFileInfo fi in _upd_file_list)
{
if (((num_file++) % 101) == 1)
{
int progress = ((((num_file++) + 1)) * 100) / nb_files;
_job_status.Progress = progress;
_job_status.Description = String.Format("upd: modified file {0}/{1} - {2}", num_file, _upd_file_list.Count,
StringFu.TimeSpanToString(new TimeSpan((long)(watch.ElapsedMilliseconds) * 10000)));
}
if (_job_status.Cancelled)
{
break;
}
writer.UpdateDocument(new Term("path", fi.FilePath),
_doc_factory.CreateFromPath(fi.FilePath, fi.LastModification));
}
writer.Commit();
//LittleBeagle.Properties.Settings.Default.NbIndexedFiles = num_file;
}
catch (System.Exception ex)
{
Log.Error(ex);
}
finally
{
if (writer != null)
{
writer.Close();
writer = null;
}
}
watch.Stop();
}
}
