I don't think there's a general way to achieve this - a Source's may simply not be ready yet at any given point in time. But for your use-case, can't you simply wait with the file creation until you actually get data from the stream?
Tal On Thursday, February 25, 2016 at 2:12:04 PM UTC+2, Kyrylo Stokoz wrote: > > Hi All, > > I would like to ensure that provided Source is not empty, is there any way > to validate this? > > Use case: I have a function that accept source and connects it to file > sink, if source is empty empty files get created, which i would like to > avoid. > > Regards, > Kyrylo > -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user --- You received this message because you are subscribed to the Google Groups "Akka User List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.
