Procrastination as a pattern for polyglot interchange

A look at ways to communicate between components in different languages, using JRuby & Clojure as examples in TorqueBox/Immutant.

Transcript

1. AS A PATTERN FOR POLYGLOT INTERCHANGE TriClojure, January 2013 http://www.flickr.com/photos/celesteh/5465690016/
2. Toby  Crawley @tcrawley gh:/tobias
3. http://www.flickr.com/photos/bre/552152780/ The  right  tool
4. http://www.flickr.com/photos/telstar/5987044822/ The  talent  pool
5. http://www.flickr.com/photos/daviderickson/5737284021/ Embed
6. Ruby  in  Clojure (example)
7. Prose • everything  in  one  place • write  ruby  like  clojure  (with  wrappers) • gh:/circleci/cljr • works  for  simple  things
8. (cons) • grody • big  ball  of  state • mixed  programming  models • type  conversion • dependency  management • see  Rohner  (Clojure/West)
9. Clojure  in  Ruby (no  example)
10. Prose • everything  in  one  place • write  clojure  like  ruby  (with  wrappers) • gh:/kyleburton/jrclj • works  for  simple  things
11. (cons) • mixed  programming  models • type  conversion • dependency  management
12. http://www.flickr.com/photos/avlxyz/2462060601 Separation  of   concerns
13. Prose • deployment  independence • facilitates  separate  teams
14. (cons) • deployment  complexity • conversion  overhead • integration  testing
15. http://www.flickr.com/photos/jacksnell707/6488069287/ Communication
16. http (example)
17. Prose • you  already  know  it • you  (may)  already  have  it
18. (cons) • (may)  expose  a  private  interface • error/retry  handling • incidental  complexity • scaling? • endpoint  discovery
19. database (ugh,  really?  no  example)
20. Prose • you  already  know  it • you  already  have  it • generally  good  at  coordination
21. (cons) • using  the  db  for  transient  data • already  a  bottleneck • polling  complexity
22. messaging (example)
23. Prose • less  compensatory  logic   • simple  scalability • distinct  endpoint
24. (cons) • timeouts  still  an  issue • (possibly)  another  system  to  manage • integration  testing
25. http://www.flickr.com/photos/lajoso/2445777235 Sync/Async
26. Prose • true  deployment  independence   • simplifies  the  requester   • scalable • chainable
27. (cons) • up  front  design • dealing  with  async  results • debugging  &  integration  tests
28. http://www.flickr.com/photos/avlxyz/2462060601 General              Pattern http://www.flickr.com/photos/nostri-imago/300664816
29. Resources • immutant.org • torquebox.org • gh:/tobias/procrastination-­sample-­code
30. http://www.flickr.com/photos/10233859@N00/4801764538/ Shin Donkey Danke  schön!
31. http://www.flickr.com/photos/coldtaxi/426162862/