public IMaybe <WallpaperData> GetById(Guid id)
{
using (var stream = _fs.OpenDownloadStream(id))
{
if (stream != null)
{
var data = new byte[stream.Length];
stream.Read(data, 0, data.Length);
var dto = new WallpaperData
{
Id = id,
Data = data,
};
if (stream.FileInfo.Metadata.IsBsonDocument &&
stream.FileInfo.Metadata.TryGetValue(WALLPAPER_ID_FIELD_NAME, out var wallpaperId) &&
wallpaperId.IsGuid)
{
dto.WallpaperId = wallpaperId.AsGuid;
}
return(new Maybe <WallpaperData>(dto));
}
}
return(new Maybe <WallpaperData>(null));
}
public GridFSDownloadStream DownloadFile(string fileId)
{
var fs = new GridFSBucket(_mongoDatabase);
var stream = fs.OpenDownloadStream(new ObjectId(fileId));
return(stream);
}
public async Task <MemoryStream> downTileData(string fileName)
{
GridFSFileInfo fileInfo;
var filter = Builders <GridFSFileInfo> .Filter.Eq(x => x.Filename, fileName);
var options = new GridFSFindOptions
{
Limit = 1
};
using (var cursor = gridFSBucket.Find(filter, options))
{
fileInfo = cursor.ToList().FirstOrDefault();
}
if (fileInfo.Id != null)
{
GridFSDownloadStream gridFSDownloadStream = gridFSBucket.OpenDownloadStream(fileInfo.Id);
}
MemoryStream destination = new MemoryStream();
destination.Seek(0, SeekOrigin.Begin);
await gridFSBucket.DownloadToStreamByNameAsync(fileName, destination);
if (destination != null)
{
return(destination);
}
else
{
return(null);
}
}
/// <summary>
/// Update dump of the file on disks.
/// </summary>
/// <param name="fileId"></param>
/// <param name="originalBlobBucket"></param>
/// <param name="deleted">If true this is an operation of deletion of the artifact.</param>
/// <returns></returns>
private Boolean UpdateDumpOfFile(
string fileId,
GridFSBucket <String> originalBlobBucket,
Boolean deleted)
{
var findIdFilter = Builders <GridFSFileInfo <string> > .Filter.Eq(x => x.Id, fileId);
var source = originalBlobBucket.Find(findIdFilter).FirstOrDefault();
if (source == null)
{
return(false); //source stream does not exists
}
if (!deleted)
{
using (var stream = originalBlobBucket.OpenDownloadStream(fileId))
{
_store.Store(stream, source.Filename, fileId);
}
}
else
{
_store.Delete(source.Filename, fileId);
}
return(true);
}
public Task <IActionResult> Get(string id)
{
return(this.InvokeAsync(() => {
var bucket = new GridFSBucket(this.GetMonDatabase().MongoDatabase);
var objId = new ObjectId(id);
var fileInfo = bucket.Find(new BsonDocument("_id", objId)).FirstOrDefault();
var contentType = fileInfo.Metadata["ContentType"].ToString();
var output = bucket.OpenDownloadStream(objId);
return File(output, contentType, fileInfo.Filename);
}));
}
public DFSFileInfo DownloadFile(string fileId)
{
var stream = fs.OpenDownloadStream(new ObjectId(fileId));
var result = new DFSFileInfo()
{
Stream = stream,
FileName = stream.FileInfo.Filename,
MD5 = stream.FileInfo.MD5
};
return(result);
}
protected GridFSFileInfo GetGridFsFile(GridFSBucket gridFS, ObjectId id, bool nullThrowException = true)
{
var fs = gridFS.OpenDownloadStream(id);
//var filter = Builders<GridFSFileInfo>.Filter.Where(p => p.Id == id);
//var fs = gridFS.Find(filter).FirstOrDefault();
if ((fs == null || fs.FileInfo == null) && nullThrowException == true)
{
throw new MongoException(string.Format(FileNotExistsErrorMessage, id, gridFS.Database.DatabaseNamespace.DatabaseName));
}
return(fs.FileInfo);
}
public Stream GetStream(string fileId)
{
try
{
ObjectId id = ObjectId.Parse(fileId);
return(_gridFs.OpenDownloadStream(id, new GridFSDownloadOptions()
{
Seekable = true
}));
}
catch (Exception ex)
{
return(null);
}
}
public void DownloadBucket()
{
var bucket = new GridFSBucket(_blobDataBase, new GridFSBucketOptions()
{
BucketName = "Simple"
});
var stream = bucket.OpenDownloadStream(ObjectId.Parse("58486e92c6a8bd38a41549e9"), new GridFSDownloadByNameOptions()
{
});
using (var newFs = new FileStream("new-image.jpg", FileMode.Create))
{
var bytes = new byte[stream.Length];
stream.Read(bytes, 0, (int)stream.Length);
newFs.Write(bytes, 0, bytes.Length);
}
}
public FileModel GetFile(string objectId, string userId)
{
var bucket = new GridFSBucket(_database, new GridFSBucketOptions()
{
BucketName = userId
});
var file = bucket.OpenDownloadStream(ObjectId.Parse(objectId));
var model = new FileModel()
{
FileStream = file,
ContentType = file.FileInfo.Metadata["ContentType"].AsString,
FileName = file.FileInfo.Filename,
Id = objectId
};
return(model);
}
public MongoReadContentProvider(GridFSBucket bucket, ObjectId id)
{
this.stream = bucket.OpenDownloadStream(id);
}
/// <summary>
/// Get a non running message from queue
/// </summary>
/// <param name="query">query where top level fields do not contain operators. Lower level fields can however. eg: valid {a: {$gt: 1}, "b.c": 3}, invalid {$and: [{...}, {...}]}</param>
/// <param name="resetRunning">duration before this message is considered abandoned and will be given with another call to Get()</param>
/// <param name="wait">duration to keep polling before returning null</param>
/// <param name="poll">duration between poll attempts</param>
/// <param name="approximateWait">whether to fluctuate the wait time randomly by +-10 percent. This ensures Get() calls seperate in time when multiple Queues are used in loops started at the same time</param>
/// <returns>message or null</returns>
/// <exception cref="ArgumentNullException">query is null</exception>
public Message Get(QueryDocument query, TimeSpan resetRunning, TimeSpan wait, TimeSpan poll, bool approximateWait)
{
if (query == null)
{
throw new ArgumentNullException("query");
}
//reset stuck messages
collection.UpdateMany(
new QueryDocument {
{ "running", true }, { "resetTimestamp", new BsonDocument("$lte", DateTime.UtcNow) }
},
new UpdateDocument("$set", new BsonDocument("running", false))
);
var builtQuery = new QueryDocument("running", false);
foreach (var field in query)
{
builtQuery.Add("payload." + field.Name, field.Value);
}
builtQuery.Add("earliestGet", new BsonDocument("$lte", DateTime.UtcNow));
var resetTimestamp = DateTime.UtcNow;
try
{
resetTimestamp += resetRunning;
}
catch (ArgumentOutOfRangeException)
{
resetTimestamp = resetRunning > TimeSpan.Zero ? DateTime.MaxValue : DateTime.MinValue;
}
var sort = new SortByDocument {
{ "priority", 1 }, { "created", 1 }
};
var update = new UpdateDocument("$set", new BsonDocument {
{ "running", true }, { "resetTimestamp", resetTimestamp }
});
var fields = new FieldsDocument {
{ "payload", 1 }, { "streams", 1 }
};
var end = DateTime.UtcNow;
try
{
if (approximateWait)
{
//fluctuate randomly by 10 percent
wait += TimeSpan.FromMilliseconds(wait.TotalMilliseconds * GetRandomDouble(-0.1, 0.1));
}
end += wait;
}
catch (Exception e)
{
if (!(e is OverflowException) && !(e is ArgumentOutOfRangeException))
{
throw e;//cant cover
}
end = wait > TimeSpan.Zero ? DateTime.MaxValue : DateTime.MinValue;
}
while (true)
{
var message = collection.FindOneAndUpdate(
builtQuery,
update,
new FindOneAndUpdateOptions <BsonDocument, BsonDocument>()
{
IsUpsert = false,
ReturnDocument = ReturnDocument.After,
Sort = sort,
Projection = fields
});
if (message != null)
{
var handleStreams = new List <KeyValuePair <BsonValue, Stream> >();
var messageStreams = new Dictionary <string, Stream>();
foreach (var streamId in message["streams"].AsBsonArray)
{
var fileInfo = gridfs.Find(new QueryDocument {
{ "_id", streamId }
}).First();
var stream = gridfs.OpenDownloadStream(streamId);
handleStreams.Add(new KeyValuePair <BsonValue, Stream>(streamId, stream));
messageStreams.Add(fileInfo.Filename, stream);
}
var handle = new Handle(message["_id"].AsObjectId, handleStreams);
return(new Message(handle, message["payload"].AsBsonDocument, messageStreams));
}
if (DateTime.UtcNow >= end)
{
return(null);
}
try
{
Thread.Sleep(poll);
}
catch (ArgumentOutOfRangeException)
{
if (poll < TimeSpan.Zero)
{
poll = TimeSpan.Zero;
}
else
{
poll = TimeSpan.FromMilliseconds(int.MaxValue);
}
Thread.Sleep(poll);
}
if (DateTime.UtcNow >= end)
{
return(null);
}
}
}
public async Task <IActionResult> Generate(ObjectId memoryId)
{
var client = new MongoDB.Driver.MongoClient("mongodb://*****:*****@localhost/?safe=true");
var db = client.GetDatabase("memoryvault");
var coll = db.GetCollection <MemoryItemModel>("memories");
var founds = coll.Find(p => p.Id == memoryId).FirstOrDefault();
if (founds == null)
{
return(NotFound("File not found."));
}
GridFSBucketOptions opts = new GridFSBucketOptions();
opts.BucketName = "memoryfiles";
var bucket = new GridFSBucket(db, opts);
bool isChanged = false;
List <ThumbnailItemModel> lstThumbs = new List <ThumbnailItemModel>();
foreach (ThumbnailSizes size in Enum.GetValues(typeof(ThumbnailSizes)))
{
using (var stream = bucket.OpenDownloadStream(founds.ItemId))
{
var dimension = GetDimension(size);
using (Image <Rgba32> bg = new Image <Rgba32>(dimension, dimension))
{
try
{
using (Image <Rgba32> image = Image.Load(stream)) //open the file and detect the file type and decode it
{
int iWidth;
int iHeight;
int margin = 3;
float ratio = (float)image.Width / (float)image.Height;
if (ratio > 1)
{
iWidth = dimension - 2 * margin;
iHeight = (int)(iWidth / ratio);
}
else
{
iHeight = dimension - 2 * margin;
iWidth = (int)(iHeight * ratio);
}
// image is now in a file format agnostic structure in memory as a series of Rgba32 pixels
image.Mutate(ctx => ctx.Resize(iWidth, iHeight)); // resize the image in place and return it for chaining
bg.Mutate(ctx => ctx.Fill(Rgba32.Black));
int pX = (int)((dimension - iWidth) / 2);
int pY = (int)((dimension - iHeight) / 2);
bg.Mutate(ctx => ctx.DrawImage(image, PixelBlenderMode.Normal, 1, new SixLabors.Primitives.Point(pX, pY)));
//var thPath = $"c:/temp/thumbs/th.{memoryId}.{DateTime.Now.ToString("MMDD_HHmmsss")}.{(ThumbnailSizes)size}.png";
//using (var fs = new System.IO.FileStream(thPath, FileMode.CreateNew))
//{
// bg.SaveAsPng(fs); // based on the file extension pick an encoder then encode and write the data to disk
// await fs.FlushAsync();
// fs.Close();
//}
using (var ms = new MemoryStream())
{
bg.SaveAsPng(ms);
lstThumbs.Add(new ThumbnailItemModel
{
CreateTime = DateTime.Now,
Size = size,
Data = ms.ToArray()
});
isChanged = true;
}
}
}
catch (Exception exc)
{
Debug.WriteLine(exc.Message);
}
}
}
}
if (isChanged)
{
await coll.UpdateOneAsync(
p => p.Id == memoryId
, Builders <MemoryItemModel> .Update.AddToSetEach(s => s.Thumbnails, lstThumbs)
);
}
return(Ok());
}
public AppQueryHandler(IMongoCollection <AppData> apps, GridFSBucket files, DataTransferManager dataTransfer, IActorRef changeTracker)
{
Receive <QueryChangeSource>(changeTracker.Forward);
MakeQueryCall <QueryApps, AppList>("QueryApps", (query, _)
=> new AppList(apps.AsQueryable().Select(ad => ad.ToInfo()).ToImmutableList()));
MakeQueryCall <QueryApp, AppInfo>("QueryApp", (query, reporter) =>
{
var data = apps.AsQueryable().FirstOrDefault(e => e.Name == query.AppName);
if (data != null)
{
return(data.ToInfo());
}
reporter.Compled(OperationResult.Failure(BuildErrorCodes.QueryAppNotFound));
return(null);
});
MakeQueryCall <QueryBinarys, FileTransactionId>("QueryBinaries", (query, reporter) =>
{
if (query.Manager == null)
{
return(null);
}
var data = apps.AsQueryable().FirstOrDefault(e => e.Name == query.AppName);
if (data == null)
{
reporter.Compled(OperationResult.Failure(BuildErrorCodes.QueryAppNotFound));
return(null);
}
var targetVersion = query.AppVersion != -1 ? query.AppVersion : data.Last;
var file = data.Versions.FirstOrDefault(f => f.Version == targetVersion);
if (file == null)
{
reporter.Compled(OperationResult.Failure(BuildErrorCodes.QueryFileNotFound));
return(null);
}
var request = DataTransferRequest.FromStream(() => files.OpenDownloadStream(file.File), query.Manager, query.AppName);
dataTransfer.Request(request);
return(new FileTransactionId(request.OperationId));
});
MakeQueryCall <QueryBinaryInfo, BinaryList>("QueryBinaryInfo", (binarys, reporter) =>
{
var data = apps.AsQueryable().FirstOrDefault(ad => ad.Name == binarys.AppName);
if (data != null)
{
return(new BinaryList(data.Versions.Select(i => new AppBinary(data.Name, i.Version, i.CreationTime, i.Deleted, i.Commit, data.Repository)).ToImmutableList()));
}
reporter.Compled(OperationResult.Failure(BuildErrorCodes.QueryAppNotFound));
return(null);
});
}
public void Send()
{
var now = DateTime.Now;
var payload = new BsonDocument {
{ "key1", 0 }, { "key2", true }
};
using (var streamOne = new MemoryStream())
using (var streamTwo = new MemoryStream())
{
gridfs.UploadFromStream("one", streamOne);//making sure same file names are ok as long as their ids are diffrent
streamOne.WriteByte(111);
streamTwo.WriteByte(222);
streamOne.Position = 0;
streamTwo.Position = 0;
queue.Send(payload, now, 0.8, new Dictionary <string, Stream> {
{ "one", streamOne }, { "two", streamTwo }
});
}
var expected = new BsonDocument
{
//_id added below
{ "payload", payload },
{ "running", false },
{ "resetTimestamp", new BsonDateTime(DateTime.MaxValue) },
{ "earliestGet", new BsonDateTime(now) },
{ "priority", 0.8 },
//streams added below
//created added below
};
var message = collection.Find(new QueryDocument()).First();
var actualCreated = message["created"];
expected["created"] = actualCreated;
actualCreated = actualCreated.ToUniversalTime();
var actualStreamIds = message["streams"].AsBsonArray;
expected["streams"] = actualStreamIds;
Assert.IsTrue(actualCreated <= DateTime.UtcNow);
Assert.IsTrue(actualCreated > DateTime.UtcNow - TimeSpan.FromSeconds(10));
expected.InsertAt(0, new BsonElement("_id", message["_id"]));
Assert.AreEqual(expected, message);
var fileOne = gridfs.Find(new QueryDocument {
{ "_id", actualStreamIds[0] }
}).First();
Assert.AreEqual("one", fileOne.Filename);
using (var stream = gridfs.OpenDownloadStream(fileOne.Id))
Assert.AreEqual(111, stream.ReadByte());
var fileTwo = gridfs.Find(new QueryDocument {
{ "_id", actualStreamIds[1] }
}).First();
Assert.AreEqual("two", fileTwo.Filename);
using (var stream = gridfs.OpenDownloadStream(fileTwo.Id))
Assert.AreEqual(222, stream.ReadByte());
}
public GridFSDownloadStream GetStream(ObjectId objectId)
{
GridFSBucket gridFS = new GridFSBucket(_context.Database);
return(gridFS.OpenDownloadStream(objectId));
}
