[Sipp-users] jSIPp - a ground-up rewrite of SIPp to make feature development easier

[Rob D. <rk...@rk...>]

Hi all,

I've been experimenting recently with a ground-up rewrite of SIPp, to
simplify the code, make it more portable, easier to integrate with
other tools, and faster to develop new features for. I expect to still
maintain the existing C++ version, but the complexity of the code
makes real innovation (as opposed to bugfixes and small improvements)
difficult.

This has resulted in what I'm currently calling jSIPp, implemented in
about 1500 lines of Java compared to the 22,000 lines of C++ SIPp
currently uses. The page for it is https://github.com/rkday/jsipp,
with a download at https://github.com/rkday/jsipp/releases/tag/v0.0.4.
As a Java JAR file, it should (in theory)  run on any operating system
with Java installed.

It's still alpha quality (current version 0.0.4), but it can already
process simple call scenarios at high rates. It uses the same or
similar XML files and command-line arguments as SIPp, but doesn't
support all the features yet -
https://github.com/rkday/jsipp/wiki/Current-Status documents exactly
what is available.

The most noticeable difference from SIPp is the UI - rather than
having a built-in ncurses UI, jSIPp publishes the call events it sees
over a ZeroMQ messaging socket, making it easy to build custom UIs and
tools that record and display the performance data as required. I've
created two UIs for it already, a traditional-looking ncurses one in
Ruby and a more modern web UI with graphs. You can find the details at
https://github.com/rkday/jsipp/wiki/ZeroMQ#sample-programs, along with
enough information to build your own interfaces.

If you'd like to see what new features I hope to add now that I have a
simpler, cleaner implementation of SIPp, see
https://github.com/rkday/jsipp/blob/master/future-directions.md. If
you want to add features or fixes yourself, see
https://github.com/rkday/jsipp/blob/master/design.md for a design
overview to get you started. I'm happy to accept pull requests
(https://help.github.com/articles/using-pull-requests).

It would be really nice to get some early users using this for real
projects - so if there are particular features you need implemented
before you can use it, please let me know and I'll do what I can to
prioritise them. Likewise, if you'd like to contribute but have
questions or problems, let me know.

jSIPp, like SIPp, is licensed under the GPL and free to use.
Feedback/comments/criticism are all welcome.

Best,
Rob

P.S. In case anyone is wondering what happened to the last new project
I announced on this list - Quaff is still under active development
(https://github.com/rkday/quaff), and likely to feature in my
KamailioWorld talk about SIP testing next month.