private IEnumerable <ApplicationEvent> Process(PostponePolicy policy, TransactionProcessorCommand command)
{
var transactionModel = command.Transaction.ToModel <TransactionModel>();
var operationId = command.BankOperation == null ? null : (long?)command.BankOperation.Id;
var @event = new TransactionProgressEvent(command.OperationId, transactionModel, operationId);
return(new List <ApplicationEvent>()
{
new PostponedEvent(@event, policy.GetScheduledDateUtc(command.Transaction, command.BankOperation))
});
}
private IEnumerable <ApplicationEvent> Process(DisallowPolicy policy, TransactionProcessorCommand command)
{
command.Transaction.Fail(policy.GetErrorMessage(command.Transaction, command.BankOperation));
var bankOperationId = command.BankOperation == null ? null : (long?)command.BankOperation.Id;
var operation = command.BankOperation == null
? null
: command.BankOperation.ToModel <BankOperation, BankOperationModel>();
var transaction = command.Transaction.ToModel <TransactionModel>();
var events = new List <ApplicationEvent>()
{
new TransactionProcessedEvent(command.OperationId, transaction, bankOperationId)
};
if (operation != null)
{
events.Add(new OperationProgressEvent(command.OperationId, operation));
}
return(events);
}
private IEnumerable <ApplicationEvent> OnFatalError(TransactionProcessorCommand command, Exception exception)
{
command.Transaction.Fail(Messages.UnknownTransactionError);
var bankOperationId = command.BankOperation == null ? null : (long?)command.BankOperation.Id;
var operation = command.BankOperation == null
? null
: command.BankOperation.ToModel <BankOperation, BankOperationModel>();
var transaction = command.Transaction.ToModel <TransactionModel>();
var events = new List <ApplicationEvent>()
{
new TransactionProcessedEvent(command.OperationId, transaction, bankOperationId)
};
if (operation != null)
{
events.Add(new OperationProgressEvent(command.OperationId, operation));
}
return(events);
}
public IEnumerable <ApplicationEvent> Process(TransactionProcessorCommand command)
{
var policy = _policies.FirstOrDefault(x => x.AppliesTo(command.Transaction, command.BankOperation));
if (command.Transaction.Status != ProcessStatus.Pending)
{
_logger.Warn("Transaction #{0} was passed to processor in invalid state.", command.Transaction.Id);
return(Enumerable.Empty <ApplicationEvent>());
}
if (policy == null)
{
throw new ArgumentException("Can't process transaction. No policy found.", "command");
}
var dynamicPolicy = (dynamic)policy;
try
{
return(Process(dynamicPolicy, command));
}
catch (Exception ex)
{
return(OnFatalError(command, ex));
}
}