protected override void Dispose(bool disposing)
{
if (disposing)
{
Flush();
cacheOutput.Dispose();
if (isWritten && isFlushed)
{
var fileInfo = new FileInfo(indexDirectory.GetFullPath(indexFileName));
using (var fs = new FileStream(indexDirectory.GetFullPath(indexFileName), FileMode.Open, FileAccess.Read))
{
var fullName = indexDirectory.GetFullName(indexFileName);
var options = new GridFSUploadOptions
{
Metadata = new BsonDocument
{
["WrittenTime"] = fileInfo.LastWriteTimeUtc
}
};
try
{
indexDirectory.Bucket.UploadFromStream(fullName, indexFileName, fs, options);
}
catch (MongoBulkWriteException ex) when(ex.WriteErrors.Any(x => x.Code == 11000))
{
indexDirectory.Bucket.Delete(fullName);
indexDirectory.Bucket.UploadFromStream(fullName, indexFileName, fs, options);
}
}
}
}
}
public MongoIndexInput(MongoDirectory indexDirectory, IOContext context, string indexFileName)
: base(indexDirectory.GetFullName(indexFileName))
{
this.indexDirectory = indexDirectory;
this.indexFileName = indexFileName;
this.context = context;
try
{
var file = indexDirectory.FindFile(indexFileName);
if (file != null)
{
var fileInfo = new FileInfo(indexDirectory.GetFullPath(indexFileName));
var writtenTime = file.Metadata["WrittenTime"].ToUniversalTime();
if (!fileInfo.Exists || fileInfo.LastWriteTimeUtc < writtenTime)
{
using (var fs = new FileStream(fileInfo.FullName, FileMode.Create, FileAccess.Write))
{
var fullName = indexDirectory.GetFullName(indexFileName);
indexDirectory.Bucket.DownloadToStream(fullName, fs);
}
}
}
}
catch (GridFSFileNotFoundException)
{
throw new FileNotFoundException();
}
cacheInput = indexDirectory.CacheDirectory.OpenInput(indexFileName, context);
}