private bool TryGetCacheImageStream(string id, string imageUrl, out Stream outImageStream)
{
id = $"$/{id}";
if (_fileStorage.Exists(id))
{
var file = _fileStorage.FindById(id);
var stream = new MemoryStream((int)file.Length);
try
{
file.CopyTo(stream);
stream.Seek(0, SeekOrigin.Begin);
_fileStorage.SetMetadata(id, new BsonDocument(new Dictionary <string, BsonValue>()
{
{ "updateAt", DateTime.Now }
}));
outImageStream = stream;
return(true);
}
catch
{
stream.Dispose();
throw;
}
}
else
{
outImageStream = null;
return(false);
}
}
public void Execute(LiteEngine engine, StringScanner s, Display display, InputCommand input, Env env)
{
var fs = new LiteStorage(engine);
var id = this.ReadId(s);
var metadata = JsonSerializer.Deserialize(s.ToString()).AsDocument;
fs.SetMetadata(id, metadata);
}
public void Execute(LiteEngine engine, StringScanner s, Display display, InputCommand input, Env env)
{
var fs = new LiteStorage(engine);
var id = this.ReadId(s);
var metadata = JsonSerializer.Deserialize(s.ToString()).AsDocument;
fs.SetMetadata(id, metadata);
}
public IEnumerable <BsonValue> Execute(StringScanner s, LiteEngine engine)
{
var fs = new LiteStorage(engine);
var id = this.ReadId(s);
var metadata = JsonSerializer.Deserialize(s.ToString()).AsDocument;
s.ThrowIfNotFinish();
fs.SetMetadata(id, metadata);
yield break;
}
private static void UploadFileAndSetMetadata(DateTime absoluteExpiration, MemoryStream imageStream, LiteStorage fileStorage, string id)
{
imageStream.Position = 0;
var fileInfo = fileStorage.Upload(id, null, imageStream);
fileStorage.SetMetadata(
fileInfo.Id,
new BsonDocument(new Dictionary <string, BsonValue> {
{ "Expires", absoluteExpiration }
}));
imageStream.Position = 0;
}
