public static async IAsyncEnumerable <AlmostOrderedArticlesState.ShoppingCartArticleRemovedInfo> AnalyseAlmostOrderedWithState(IPersistenceEngine engine = null)
{
engine = engine ?? Program.engine;
var loadedMessages = await engine.LoadStreamEntriesAsync(
0,
int.MaxValue, new[]
{
typeof(ShoppingCartCreated),
typeof(ShoppingCartArticleRemoved),
typeof(ShoppingCartOrdered),
typeof(ShoppingCartCancelled)
})
.Select(x => engine.Serializer.Deserialize(x.Payload))
.ToListAsync();
Console.WriteLine("Removed Articles: ");
var almostOrderedState = AlmostOrderedArticlesState.LoadState((AlmostOrderedArticlesState)null,
loadedMessages);
var removedArticles = almostOrderedState
.AlmostOrderedShoppingCartArticles
.ToList();
var groupedByCustomer =
removedArticles
.GroupBy(x => x.CustomerName)
.Select(x => new
{
CustomerName = x.Key,
Articlenumbers = x.GroupBy(y => y.Articlenumber)
.Select(y => new
{
Count = y.Count(),
Articlenumber = y.Key
})
.ToList()
})
.ToList();
foreach (var item in groupedByCustomer)
{
Console.WriteLine($"{item.CustomerName}: {string.Join(", ", item.Articlenumbers.Select(x => "" + x.Count + "x " + x.Articlenumber))} ");
}
Console.WriteLine();
foreach (var item in removedArticles)
{
yield return(item);
}
}
protected async Task FixTestDataAsync()
{
var rawStreamEntries = await persistenceEngine.LoadStreamEntriesAsync()
.ToListAsync();
foreach (var entry in rawStreamEntries)
{
var testData = testEvents.First(x => x.MessageId == entry.MessageId);
testData.CommitId = entry.CommitId;
testData.CheckpointNumber = entry.CheckpointNumber;
testData.StreamRevision = entry.StreamRevision;
}
}
public async Task Can_save_and_load_stream_entry()
{
var expected = config.WriteModel.GenerateRawStreamEntry();
var number = await persistenceEngine.GetCurrentEventStoreCheckpointNumberAsync();
number.Should().Be(-1);
await persistenceEngine.SaveStreamEntriesAsync(new[] { expected });
var streamEntry = await persistenceEngine.LoadStreamEntriesAsync()
.FirstAsync();
streamEntry.Payload.Should().Be(expected.Payload);
}
