private static async Task OutputAsync(long bankAccountNo1, long bankAccountNo2, IScopedTransactionalDatabase transactionalStore)
{
BankAccount bankAccount1, bankAccount2;
try
{
bankAccount1 = await transactionalStore.GetAsync <BankAccount>(p => p.Id == bankAccountNo1).FirstOrDefault();
bankAccount2 = await transactionalStore.GetAsync <BankAccount>(p => p.Id == bankAccountNo2).FirstOrDefault();
await transactionalStore.TryCommitAsync();
}
catch
{
await transactionalStore.RollbackAsync();
throw;
}
await Console.Out.WriteLineAsync($"Account1 amount: {bankAccount1.Amount} should be {_ba1AmountComparand}");
await Console.Out.WriteLineAsync($"Account2 amount: {bankAccount2.Amount} should be {_ba2AmountComparand}");
await Console.Out.WriteLineAsync();
await Console.Out.WriteLineAsync(bankAccount1.Amount == _ba1AmountComparand && bankAccount2.Amount == _ba2AmountComparand? "OK" : "NOT OK");
}
public async Task <bool> WriteToDatabaseAsync(IScopedTransactionalDatabase transactionalDatabase, CancellationToken cancellation)
{
// Write touched target metadata to database
foreach (var(originalMetadata, touchedMetadata) in _targetMetadataCache.Values.Where(p => p.Touched))
{
var comparandMetdata = await transactionalDatabase.GetAsync <ProjectionTargetMetadata>(p => p.Id == (originalMetadata ?? touchedMetadata).Id).FirstOrDefault();
if (!MatchesByRevision(originalMetadata, comparandMetdata))
{
return(false);
}
if (touchedMetadata == null)
{
Assert(originalMetadata != null);
await transactionalDatabase.RemoveAsync(originalMetadata, cancellation);
}
else
{
touchedMetadata.MetadataRevision = originalMetadata?.MetadataRevision ?? 1;
await transactionalDatabase.StoreAsync(touchedMetadata, cancellation);
}
}
// TODO: Do we have to check whether the targets were updated concurrently?
foreach (var targetToUpdate in _targetsToUpdate)
{
await transactionalDatabase.StoreAsync(targetToUpdate, cancellation);
}
foreach (var targetToDelete in _targetsToDelete)
{
await transactionalDatabase.RemoveAsync(targetToDelete, cancellation);
}
return(true);
}