public async Task Handle(ReadDatasetVerb verb)
{
if (!StringExists(verb.Id))
{
logger.Log("use --id <id> to choose a dataset");
return;
}
var dataset = await datasetService.Get <EmptyDataset>(verb.Id);
if (DatasetTypes.Empty.Equals(dataset.Type))
{
// emtpy set
logger.Log($"{dataset.Id} is an empty dataset");
}
else if (DatasetTypes.SingleClassImage.Equals(dataset.Type))
{
var resolved = await resolverService.ResolveSingleClassImage(dataset);
logger.Log($"{resolved.Id} is of type {resolved.Type}");
logger.Log($"There are {resolved.LabelledImages.Count()} images in the set");
var labelCount = resolved.LabelledImages.Select(i => i.Label).Distinct().Count();
logger.Log($"There are {labelCount} labels");
if (StringExists(verb.Output))
{
var json = JsonConvert.SerializeObject(resolved);
File.WriteAllText(verb.Output + "/" + verb.Id + ".json", json);
}
}
else
{
logger.Log($"{dataset.Type} is an unknown type");
}
}
public async Task Dataset_InMemoryCRUD()
{
var id = "ANewId";
var logger = (TestLogger)Resolve <ILogger>();
var datasetService = Resolve <IDatasetService>();
var createHandler = Resolve <ICreateDatasetHandler>();
var readHandler = Resolve <IReadDatasetHandler>();
var updateHandler = Resolve <IUpdateDatasetHandler>();
var deleteHandler = Resolve <IDeleteDatasetHandler>();
// create
var createVerb = new CreateDatasetVerb();
createVerb.Id = id;
createHandler.Handle(createVerb).Wait();
var ds = await datasetService.Get <EmptyDataset>(id);
Assert.IsNotNull(ds);
Assert.AreEqual(ds.Id, id);
Assert.AreEqual(ds.Type.Value, DatasetTypes.Empty.Value);
// update inline
var updateVerb = new UpdateDatasetVerb();
updateVerb.Id = id;
updateVerb.Label = "ALabel";
updateVerb.Type = DatasetTypes.SingleClassImage.Value;
updateVerb.Url = "http://example.com/pcture.jpeg";
updateHandler.Handle(updateVerb).Wait();
var singleClassDs = await datasetService.Get <SingleClassImageDataset>(id);
Assert.IsNotNull(singleClassDs);
Assert.AreEqual(singleClassDs.Id, id);
Assert.AreEqual(singleClassDs.Type.Value, DatasetTypes.SingleClassImage.Value);
// read the data
var readVerb = new ReadDatasetVerb();
readVerb.Id = id;
readHandler.Handle(readVerb).Wait();
Assert.IsTrue(logger.Messages.Any(m => m.Contains($"{id} is of type {DatasetTypes.SingleClassImage.Value}")));
Assert.IsTrue(logger.Messages.Any(m => m.Contains($"1")));
// delete the dataset
var deleteVerb = new DeleteDatasetVerb();
deleteVerb.Id = createVerb.Id;
deleteHandler.Handle(deleteVerb).Wait();
await Assert.ThrowsExceptionAsync <DatasetNotFoundException>(() => datasetService.Get <EmptyDataset>(createVerb.Id));
}
