public MendozaCommandResult placeOrder(final MendozaRequest request) {
log.trace("Entering placeOrder");
clearReceivedMessagesFromCheckout();
MendozaPlaceOrderCommand command =
new MendozaPlaceOrderCommand(request, this, serverState, buyerRobot);
command.execute();
log.trace("Leaving placeOrder");
return command.getResult();
}
/** Charges the order.