Will be any problem if the Stellar function we want to implement need to load an external config file?
Cheers, Ali On Thu, Jan 18, 2018 at 4:58 PM, Ali Nazemian <alinazem...@gmail.com> wrote: > Thanks, All. > > Yes, Nick. It is highly related to our use case and the way that we are > going to enrich events with assets and vulnerability properties. It is not > a general case at all. > > Cheers, > Ali > > On Thu, Jan 18, 2018 at 5:43 AM, Matt Foley <ma...@apache.org> wrote: > >> Besides the example code Simon mentioned at >> https://github.com/apache/metron/tree/master/metron-stellar/ >> stellar-3rd-party-example , >> there is some documentation at http://metron.apache.org/curre >> nt-book/metron-stellar/stellar-common/3rdPartyStellar.html >> >> >> >> *From: *Nick Allen <n...@nickallen.org> >> *Reply-To: *"user@metron.apache.org" <user@metron.apache.org> >> *Date: *Wednesday, January 17, 2018 at 4:46 AM >> *To: *"user@metron.apache.org" <user@metron.apache.org> >> *Subject: *Re: Define a function that can be used in Stellar >> >> >> >> >> >> >> >> If something we have already does not fit the bill, I would recommend >> creating that function in Java. Since you described it as "a bit complex" >> and "the logic would be complicated" I don't see any value in defining >> something like this in Stellar with named functions. >> >> >> >> Best >> >> >> >> >> >> >> >> >> >> On Wed, Jan 17, 2018 at 7:38 AM Simon Elliston Ball < >> si...@simonellistonball.com> wrote: >> >> Have you looked at the recent TLSH functions in Stellar? We already have >> that for similarity preserving hashes. >> >> >> >> Simon >> >> >> >> >> On 17 Jan 2018, at 12:35, Ali Nazemian <alinazem...@gmail.com> wrote: >> >> It is a bit complex. We want to create a function that accepts a list of >> arguments for an asset and generate an asset identifier that can be used as >> a row_key for the enrichment store. The logic would be complicated, though. >> We may need to include some sort of similarity aware hash function as a >> part of this custom function. >> >> >> >> On Wed, Jan 17, 2018 at 10:32 PM, Nick Allen <n...@nickallen.org> wrote: >> >> Ali - Can you describe the logic that you are trying to perform? That >> would be useful as a use case to help drive a discussion around creating >> named functions in Stellar. >> >> >> >> >> >> >> >> >> >> On Wed, Jan 17, 2018 at 6:29 AM Ali Nazemian <alinazem...@gmail.com> >> wrote: >> >> Thanks, Simon. We have already got a script to deal with classpath >> management for the parsers. We should be able to use it for this extension >> as well. >> >> >> >> Yeah, I agree. It will be much easier to define functions on the fly and >> use them afterwards. It could be defined as Lambda or custom function. >> >> >> >> Regards, >> >> Ali >> >> >> >> >> >> >> >> On Wed, Jan 17, 2018 at 9:42 PM, Simon Elliston Ball < >> si...@simonellistonball.com> wrote: >> >> https://github.com/apache/metron/tree/master/metron-stellar/ >> stellar-3rd-party-example gives good details on how to add a stellar >> function. >> >> >> >> Stellar will pick up an annotated function on its class path, so to add >> function there is no need to rebuild metron module, but you do need your >> modules on the classpath, and, pending 777, to deal with things like class >> path clash in your dependencies. >> >> >> >> Another idea worth discussion on the dev list is probably the notion of >> defining stellar functions in stellar, which would be a much simpler >> solution than custom java functions if you can already express you logic in >> stellar. >> >> >> >> Simon >> >> >> >> >> >> On 17 Jan 2018, at 10:37, Ali Nazemian <alinazem...@gmail.com> wrote: >> >> >> >> Hi Simon, >> >> >> >> Yes, that is exactly what we are looking for. Is there any example >> regarding adding a Stellar function in Java? Hopefully, we don't need to >> rebuild the corresponding modules for this? >> >> >> >> Cheers, >> >> Ali >> >> >> >> On Wed, Jan 17, 2018 at 8:40 PM, Simon Elliston Ball < >> si...@simonellistonball.com> wrote: >> >> At present you can certainly create custom stellar functions in Java. I’m >> guessing however that what you’re looking to do is create a kind of >> function that combines a number of stellar functions to avoid repetition, >> or to ensure consistency of certain parameters for example. Is that what >> you’re looking for? Maybe some sort of syntax to create a named stellar >> function similar to the way we create lambdas? >> >> Simon >> >> >> > On 17 Jan 2018, at 07:25, Ali Nazemian <alinazem...@gmail.com> wrote: >> > >> > Hi all, >> > >> > Is there any way that we can define a function that can be used rather >> than duplicating a logic multiple times? >> > >> > Cheers, >> > Ali >> >> >> >> >> >> -- >> >> A.Nazemian >> >> >> >> >> >> >> >> -- >> >> A.Nazemian >> >> >> >> >> >> -- >> >> A.Nazemian >> >> > > > -- > A.Nazemian > -- A.Nazemian
