PHPからScalaへ...その後

Transcript

1. PHP͔ΒScala΁…ͦͷޙ Yuta Adachi (ChatWork)

2. ࣗݾ঺հ ҆ୡ ༐ଠ @UAdachi ग़਎ - ౡࠜݝদߐࢢ ࢓ࣄ - Scala

   + DDD at ChatWork झຯ - ςχε(΋ͬͺΒ؍ઓ), өը

3. ChatWorkͷ঺հ

4. ChatWork ౦ژɿ16ਓ େࡕɿ20ਓ USAɿ6ਓ (New!) ϧΫηϯϒϧΫʹࢠձࣾΛઃཱ ϏδωενϟοτπʔϧʮνϟοτϫʔΫʯΛల։த

5. ChatWork + ϏσΦ௨࿩ in the cloud νϟοτ λεΫ؅ཧ

6. ಋೖ਺ ̐ສ̒ઍࣾɺ̐̍ສϢʔβʔಥഁʂ ಋೖاۀྫɿ ʢ2014೥5݄ݱࡏʣ 0 125000 250000 375000 500000 2011

   6 9 12 2012 6 9 12 2013 6 9 12 2014 6 Ϣʔβʔ਺ɿ

7. PHP͔ΒScala΁…

8. ൒೥લ…

9. ݴޠ+ϑϨʔϜϫʔΫબఆ߹॓ 2ധ3೔ ੩Ԭݝҏ౦ࢢ ! IUUQEIBUFOBOFKQSB[PO

10. None

11. ͦͷޙ…

12. ͳͥScalaΛબΜ͔ͩ - ੩తܕ෇͚ݴޠΛ࢖͍͍ͨ - ιʔείʔυͷՄಡੑߴͦ͏ - εέʔϥϏϦςΟߴͦ͏

13. ͦͷޙ…

14. ਐḿ • Scalaֶश (5݄த०ʙ) • ϏζϦʔν͞Μͱษڧձ (5݄Լ०) • ϓϩδΣΫτൃ଍ (7্݄०ʙ)

    • ࣾ಺ษڧձ (8݄Լ०ʙ)

15. Scalaͷֶश

16. ScalaͷֶशϑΣʔζ • ಠश (5݄த०ʙԼ०) • ՝୊ →ϨϏϡʔ (6݄຤ʙ7্݄०) • ϖΞϓϩ

    (7্݄०ʙ)

17. ಠश

18. ಠश • ͰAPIΛ࡞ͬͯΈΔ • ίοϓຊ + ٯҾ͖Ϩγϐ

19. ੒Ռ • ͘͘͝͝جຊతͳจ๏͚ͩཧղͨ͠

20. ͜ͷઌେৎ෉͔ͳ…

21. ͦΜͳ࣌ɺ ٹੈओ͕δϣΠϯ!!!

22. ͔ͱ͡ΎΜ • Scalaͷ͍͢͝ਓ͕ChatWorkʹ Ճ౻
    ५Ұ
    ͞Μ
    
    !KJLP
    λά
    ౶੍࣭ݶ
    ೑
    4DBMB
    %%%

23. ՝୊ - ϨϏϡʔ

24. ՝୊ • ؆୯ͳσʔλߏ଄ (2෼໦) • ਺ྻɺ୯ޠΧ΢ϯτɺݕࡧ • AkkaͰMap / Reduce

25. ϨϏϡʔ • ϓϧϦΫग़ͯ͠ɺϨϏϡʔ • ίϝϯτΛ΋Βͬͯվળɺͷ܁Γฦ͠

26. ੒Ռ • ύλʔϯϚον࢖͑ΔΑ͏ʹͳͬͨ • ߴ֊ؔ਺͕࢖͑ΔΑ͏ʹͳͬͨ • ؔ਺ܕͬΆ͘ॻ͚ΔΑ͏ʹͳ͖ͬͯͨ

27. ϓϩδΣΫτൃ଍ → ϖΞϓϩ։࢝

28. ϖΞϓϩ ɾϦϞʔτͰϖΞϓϩ ɾϖΞϓϩ : 뱌 = 3 : 7 ɾιϩͷͱ͖͸ݟΑ͏ݟਅࣅͰॻ͍ͯΈΔ

29. ੒Ռ ɾޮ཰తͳֶश͕Ͱ͖ͨ ɾ஌ࣝͷڞ༗͕Ͱ͖ͨ ɾूதͰ͖ͨ

30. ޮ཰తͳScalaֶश ʮ͜͜͸”for yield”Ͱॻ͖௚ͤΔͶʯ ʮ͜͏͍͏ߴ֊ؔ਺͕͋ͬͯɺ…ʯ ʮfoldLeftͱreduceLeftͷҧ͍͸…ʯ

31. ScalaҎ֎ͷ஌ࣝ΋ڞ༗ ʮIntelliJʹ͸͜͏͍͏γϣʔτΧοτ͕…ʯ ! ʮDDDతʹ͸ɺ͜Ε͸ΞϓϦέʔγϣϯ૚ͷ ࿩ͩͶɻυϝΠϯͱ͸ؔ܎ͳ͍͔ΒҠͦ͏ɻʯ

32. ूதͰ͖Δ ࣗવͱίʔσΟϯάʹूத͢Δ

33. ϖΞϓϩͰେ੾ͳ͜ͱ

34. େ੾ͳ͜ͱ μϥμϥ΍Βͳ͍ ऴྃޙʹίʔυΛטΈࡅ࣌ؒ͘Λ༻ҙ͢Δ ͨ·ʹ͸ࡶஊ͢Δ (ίϯύΠϧ͠ͳ͕Β)

35. ϦϞʔτͰͲ͏΍ͬͯ ϖΞϓϩ͢Δͷ͔ʁ

36. ScreenHero ɾࣗ෼ͷΩʔϘʔυͰϖΞϓϩͰ͖Δ ɾ͘͘͞͞ϦϞʔτϖΞϓϩͰ͖Δ IUUQTTDSFFOIFSPDPN

37. ScreenHero ɾΤσΟλͷઃఆ͸ఘΊΔ IUUQTTDSFFOIFSPDPN ϖΞʮIntelliJ IDEAʹvimϓϥάΠϯ͕ೖͬͯͳ͍ͱ͔ɺ ਓ͕ؒ࢖͑Δ΋ͷ͡Όͳ͍ͳʯ

38. ࣾ಺ษڧձ

39. ࣾ಺ษڧձ ઌ݄຤ʹελʔτɺि2ϖʔε جຊతʹ͸΋͘΋͘՝୊ + ϖΞϓϩ → ϊ΢ϋ΢΍৘ใ·ͱ·ͬͨΒެ։͍ͨ͠

40. ·ͱΊ

41. ·ͱΊ ɾʮScalaʹҠߦ͠·͢ʂʯએݴ → ϏζϦʔν͞ΜͱษڧձͰ͖ͨ → ࠾༻͕ਐΜͩ

42. ·ͱΊ ɾ̍ਓͰ΋͘΋ֶ͘श͢Δͷ͸ޮ཰ѱ͍ → ScalaΤΩεύʔτ͍ͳͯ͘΋!!! ! ɾϖΞϓϩͰ࣮ફతͳॻ͖ํ͕਎ʹ͍ͭͨ

43. ·ͱΊ ࠓޙͷChatWorkʹظ଴͍ͯͩ͘͠͞ʂʂʂ

44. ͋Γ͕ͱ͏͍͟͝·ͨ͠ɻ