public Index(string directory, IEnumerable <Field> mapping)
{
_mapping = FieldMapper.Create(mapping);
_termFields = FieldMapper.GetTermFields(mapping);
var analyzerMap = mapping
.Where(x => !string.IsNullOrEmpty(x.SpecificAnalyzer))
.ToDictionary(x => x.Name, x => x.SpecificAnalyzer);
IDisposable d;
(_analyzer, d) = PerFieldAnalyzer.Create("StandardAnalyzer", analyzerMap);
_dir = DirectoryProvider.Create(directory);
_sm = new Lazy <SearcherManager>(() => new SearcherManager(_dir, null), true);
_disposable = new DelegateDisposable(() =>
{
d.Dispose();
_writer?.Dispose();
_writer = null;
if (_sm.IsValueCreated)
{
_sm.Value.Dispose();
}
_dir.Dispose();
});
}
public void Copy(string dest)
{
var destDir = DirectoryProvider.Create(dest);
var policy = (SnapshotDeletionPolicy)Writer.Config.IndexDeletionPolicy;
var commit = policy.Snapshot();
try
{
foreach (var file in commit.FileNames)
{
_dir.Copy(destDir, file, file, IOContext.READ_ONCE);
}
}
finally
{
policy.Release(commit);
Writer.DeleteUnusedFiles();
}
}
