public bool TryLoad(string path, IndexLoadOptions options)
{
try
{
_directory = FSDirectory.Open(path);
_reader = IndexReader.Open(_directory, options.ReadOnly);
if (options.ForceUnlock && _directory.FileExists(IndexWriter.WRITE_LOCK_NAME))
{
_directory.ClearLock(IndexWriter.WRITE_LOCK_NAME);
}
var fields = _reader.GetFieldNames(IndexReader.FieldOption.ALL);
_numFields = fields.Count;
CountTerms();
foreach (var file in _directory.ListAll())
{
try
{
string fpath = Path.Combine(_directory.Directory.ToString(), file);
if (_lastModified == null)
{
_lastModified = File.GetLastWriteTimeUtc(fpath);
}
else
{
var mod = File.GetLastWriteTimeUtc(fpath);
if (mod > _lastModified.Value)
{
_lastModified = mod;
}
}
}
catch
{
// ignore
}
}
_loaded = true;
return(true);
}
catch
{
_directory = null;
_reader = null;
_numFields = 0;
_numTerms = 0;
_loaded = false;
_lastModified = null;
return(false);
}
}
public bool TryLoad(string path, IndexLoadOptions options)
{
try
{
_directory = FSDirectory.Open(path);
_reader = IndexReader.Open(_directory, options.ReadOnly);
if (options.ForceUnlock && _directory.FileExists(IndexWriter.WRITE_LOCK_NAME))
{
_directory.ClearLock(IndexWriter.WRITE_LOCK_NAME);
}
var fields = _reader.GetFieldNames(IndexReader.FieldOption.ALL);
_numFields = fields.Count;
CountTerms();
foreach (var file in _directory.ListAll())
{
try
{
string fpath = Path.Combine(_directory.Directory.ToString(), file);
if (_lastModified == null)
_lastModified = File.GetLastWriteTimeUtc(fpath);
else
{
var mod = File.GetLastWriteTimeUtc(fpath);
if (mod > _lastModified.Value)
_lastModified = mod;
}
}
catch
{
// ignore
}
}
_loaded = true;
return true;
}
catch
{
_directory = null;
_reader = null;
_numFields = 0;
_numTerms = 0;
_loaded = false;
_lastModified = null;
return false;
}
}
void LoadIndex(object sender, EventArgs e)
{
var vm = sender as OpenIndexViewModel;
var options = new IndexLoadOptions();
options.ForceUnlock = vm.ForceUnlock;
options.ReadOnly = vm.OpenReadOnly;
bool success = _indexService.TryLoad(vm.PathToIndex, options);
if (!success)
{
vm.LoadFailed();
return;
}
IndexPath = vm.PathToIndex;
vm.TryClose();
}
