public IAggregator NextAggregator(IXTable source, XDatabaseContext context)
{
IAggregatorBuilder builder = null;
ParseNextOrThrow(
() => Factories.AggregatorFactory.TryGetBuilder(_scanner.Current.Value, out builder),
"Aggregator",
TokenType.FunctionName,
Factories.AggregatorFactory.SupportedNames);
_currentlyBuilding.Push(builder);
// Parse the open paren
ParseNextOrThrow(() => true, "(", TokenType.OpenParen);
try
{
IAggregator result = builder.Build(source, context);
// Ensure we've parsed all arguments, and consume the close paren
ParseNextOrThrow(() => true, ")", TokenType.CloseParen);
_currentlyBuilding.Pop();
return(result);
}
catch (Exception ex)
{
Rethrow(ex);
return(null);
}
}
public TestMessagesSaga(IAggregatorBuilder states)
{
_states = states.InitCall <MessageRequest>((c, i) =>
{
var id = Guid.NewGuid();
Console.WriteLine($"Init saga: {id} - Input: {i}");
c.SendMessage <MessageRequest>("Service", i);
})
.Error <MessageError>((c, e) =>
{
Console.WriteLine($"Init error id: {c.CorrelationId}");
})
.Rollback <MessageRequest>((c, e) =>
{
Console.WriteLine($"Rollback finished id: {c.CorrelationId}");
})
.Step <MessageResponse>((c, r) =>
{
Console.WriteLine($"Response1 saga: {c.CorrelationId}");
c.SendMessage <Message1Request>("Service1", new Message1Request());
})
.Error <Message1Error>((c, e) =>
{
Console.WriteLine($"Step 1 error id: {c.CorrelationId}");
})
.Rollback <Message1Request>((c, e) =>
{
Console.WriteLine($"Rollback step1 id: {c.CorrelationId}");
c.SendRollback <MessageRequest>("Service", new MessageRequest());
})
.Step <Message1Response>((c, r) =>
{
Console.WriteLine($"Response2 saga: {c.CorrelationId}");
c.SendMessage <Message2Request>("Service2", new Message2Request());
})
.Error <Message2Error>((c, e) =>
{
Console.WriteLine($"Step 2 error id: {c.CorrelationId}");
c.SendRollback <Message1Request>("Service1", new Message1Request());
})
.Rollback <Message2Request>((c, e) =>
{
Console.WriteLine($"Rollback step 2 id: {c.CorrelationId}");
})
.Finish <Message2Response>((c, r) =>
{
Console.WriteLine($"Finish saga: {c.CorrelationId}");
});
}
