Scala Bot for Small Business
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Scala can be used for automation scripts for small businesses, though it has some drawbacks for scripting like slow compilation and JVM overhead. The Scala REPL is useful for testing scripts. A recommended approach is to create a bot that trained colleagues can message commands to, which then runs scripts safely, avoiding the downsides of direct access. Libraries like Rapture IO, Dispatch, and Smack can help with common tasks like file access and messaging.
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Scala Bot for Small Business
- 1. Scala Bot for Small Business yllan @ ScalaConf.jp March 2, 2013
- 2. Who Am I? 藍永倫 @yllan Working at Hypo (http://hypo.cc) しもおし Scala 下忍（⾃自称）
- 3. 初心者 Why am I here?
- 5. Scala: Scalable Language Able to be changed in size or scale. 拡大縮小が可能なさま。拡張性があるさま。
- 8. Scala is good at BIG.
- 10. Scala is good at small?
- 11. RUBY SCALA
- 13. A lot of small business!
- 15. Right Tool for Automation
- 16. Scala for script? Hmm…
- 17. Cons for scala scripting
- 18. Cons for scala scripting Slow compile
- 19. Cons for scala scripting Slow compile scala -savecompiled script.scala
- 20. Cons for scala scripting Slow compile scala -savecompiled script.scala Hard to memorize classpath
- 21. Cons for scala scripting Slow compile scala -savecompiled script.scala Hard to memorize classpath JVM boot overhead
- 22. Cons for scala scripting Slow compile scala -savecompiled script.scala Hard to memorize classpath JVM boot overhead nailgun? Hmmm
- 23. Cons for scala scripting Slow compile scala -savecompiled script.scala Hard to memorize classpath JVM boot overhead nailgun? Hmmm Default I/O library
- 24. Recommended lib rapture.io (http://rapture.io) File / "home" / "work" / "contents" > Socket("localhost", Services.Tcp.telnet) dispatch (http://dispatch.databinder.net/) val svc = url("http://hostip.info/country.php") val country = Http(svc OK as.String)
- 25. TIPS Scala REPL comes to rescue! :cp - add a jar/dir to classpath :load - load a scala file :sh scala> :sh find . -name *.m res0: s.t.n.i.ProcessResult = `find . -name *.m` (23 lines, exit 0) scala> res0.exitCode res1: Int = 0 scala> res0.lines res2: List[String] = List(...) import scala.sys.process._
- 26. I ♡ scala REPL!
- 27. For non-geek?
- 31. SHIT HAPPENS.
- 32. DANGEROUS!
- 33. Solutions Only permit trained people use the guns; or Make your gun super safe.
- 34. Take our company as example…
- 36. “Make gun safe” strategy works?
- 39. Too many system!
- 40. Let the trained people do.
- 41. COLLEAGUE ME SCRIPT IM RUN
- 42. COLLEAGUE BOT SCRIPT IM RUN
- 43. IM XMPP AIM Google Talk Facebook Messenger Smack Library (http://www.igniterealtime.org/ projects/smack/)
- 44. Command Parsing Regex + extractor Every command is a PartialFunction
- 46. Happy!
- 47. That’s my little story about scala.
- 48. Q&A