Doing a commandline callout from OSB

Question

How should one do a command-line call out from an OSB proxy service, would one just do a java callout and pass it on from there? The documentation seems to recommend against it because it will require threads, but I'm not sure how else one would accomplish something like this.
What I need to do is pass a file to gpg and then use the returned file for further processing.

Answer 1

Ok, you might be right. I guess there must be other implementations for PGP in Java.If there are we have been unable to find them, and they very well might suffer from the same drawbacks as bouncycastle.
I would say there isn't anything useful on command-line, but our preferences are probably very different. Involving command-line logic has its disadvantages like difficult deployment, potential painful migration (platform dependency), security related problems ... But if you don't mind, go for it.Those problems are true no matter what for any project of at least interesting complexity. and command-line invocations are great solution for all of them. The interface tends to be very simple, just the command name and some parameters which makes it much easier to build replacements if it is truly needed, and deployment is usually eased by having some kind of installer. The only potential problem is one of scalability.
Which still leaves me with how to do it properly, since invoking the command line from Java seems to necessitate threads, which the OSB recommends against for Java callouts. Does that warning still hold if all the spawned threads must complete before the function returns?