4年の開発が積み重なったアプリへのリファクタリング手法

Transcript

1. ೥ͷ։ൃ͕ੵΈॏͳͬͨ
   ΞϓϦ΁ͷϦϑΝΫλϦϯάख๏
   :BIPP+"1"/஑ాಯ
   1
   

   View Slide

2. w γεςϜͱνʔϜΛ஌Δ
   w ࢖͏ٕज़ΛܾΊΔ
   w औΓ૊ΜͰ͍Δઃܭ΍ख๏
   w औΓ૊Μͩ݁Ռ
   ໨࣍
   2
   

   View Slide

3. ˞͋͘·Ͱख๏΍ઃܭͷҰྫͰ͢ɻ
   3
   

   View Slide

4. γεςϜͱνʔϜΛ஌Δ
   4
   

   View Slide

5. w ೥݄ʹϦϦʔεͯ͠೥ܦ͍ͬͯΔ
   w .71΍.77.ͳͲͷΞʔΩςΫνϟ͸ະಋೖ
   w "DUJWJUZ΍'SBHNFOUʹϩδοΫ͕࣮૷͞Εͯ
   ͍ΔՕॴଟ͍
   w ඼࣭ͱ։ൃεϐʔυͷ୲อ͕೉͍͠ঢ়ଶʹ
   :BIPPχϡʔεΞϓϦ
   5
   

   View Slide

6. νʔϜͷঢ়گ
   w "OESPJEΤϯδχΞ໊ɻ
   w "͞Μɿ೥͘Β͍୲౰
   w #͞Μɿ೥͘Β͍୲౰
   w ࢲɿ೥݄͔Β୲౰
   6
   

   View Slide

7. w .71΍.77.ͳͲͷΞʔΩςΫνϟ͸ະಋೖ
   w 7JFXʹϩδοΫ͕࣮૷͞Ε͍ͯΔ
   w ਓͷதͩͱࣗ෼͕Ұ൪ઃܭͷܦݧ͋Δ
   ίʔυݹ͍͠ɺͬͦ͘͞ϦϑΝΫλͯ͠΍Δʂ
   7
   

   View Slide

8. w ೥ؒ.71΍.77.ͷ࢓૊Έͳ͠
   w 7JFXʹϩδοΫ͕࣮૷͞Ε͍ͯΔ
   w ਓͷதͩͱࣗ෼͚ͩγχΞΤϯδχΞɺઃܭͷܦݧ͋Δ
   ίʔυݹ͍͠ɺͬͦ͘͞ϦϑΝΫλͯ͠΍Δʂ
   μϝ
   8
   

   View Slide

9. ͍͖ͳΓணख͠ͳ͍
   w αʔϏε΍γεςϜͷ͜ͱΛ஌Βͳ͍ͱྑ͍બ୒͕Ͱ͖ͳ͍ɻ
   w ։ൃ͸νʔϜͰߦ͏΋ͷɻνʔϜϝϯόʔΛ஌Δ͜ͱ΋େ੾ɻ
   w ݱίʔυͰଟ͘ͷϢʔβʔʹ࢖ͬͯ΋Β͍ͬͯΔ͠ɺ

   ച্΋্͍͛ͯΔɻಈ͍͍ͯΔίʔυʹ΋ͬͱϦεϖΫτΛɻ
   w ϲ݄͘Β͍։ൃۀ຿Λߦ͍ͳ͕Β؍࡯ͨ͠ɻ
   9
   

   View Slide

10. ؍࡯ɿγεςϜΛ஌Δ
    w ϩʔΧϧ%#΁ͷΩϟογϡ
    w هࣄछผͷ஌͕ࣝଟ͍

    ΧςΰϦɾτϐοΫεɾ߸֎
    
    w #''͸ͳ͘ɺෳ਺ͷ"1*Λୟ͍
    ͯͭͷϦετΛ࡞Δ͜ͱ΋ඞ
    ཁ
    γεςϜͷಛੑ
    10
    

    View Slide

11. ؍࡯ɿγεςϜΛ஌Δ
    w ϩʔΧϧ%#΁ͷΩϟογϡ
    w هࣄछผͷ஌͕ࣝଟ͍

    ΧςΰϦɾτϐοΫεɾ߸֎
    
    w #''͸ͳ͘ɺෳ਺ͷ"1*Λୟ͍
    ͯͭͷϦετΛ࡞Δ͜ͱ΋ඞ
    ཁ
    γεςϜͷಛੑ
    w σʔλऔಘઌΛந৅Խ͍ͨ͠
    w ಛఆൣғͷؔ৺ࣄΛՕॴʹू
    ໿͍ͨ͠
    w ෳ਺ͷ"1*͔ΒඇಉظͰऔಘɺ
    ଴ͪ߹Θͤɺ૊Έ߹Θͤ

    ղܾ͍ͨ͜͠ͱ
    10
    

    View Slide

12. w ΞϓϦʹݶΒͣ

    χϡʔεαʔϏεͷ஌͕ࣝ๛෋
    w 7JFXपΓͷ࣮૷͕ಘҙ
    w 3Y+BWB΍%*ͷܦݧ͸

    ͋·Γͳͦ͞͏
    ؍࡯ɿνʔϜΛ஌Δ
    11
    

    View Slide

13. w ΞϓϦʹݶΒͣ

    χϡʔεαʔϏεͷ஌͕ࣝ๛෋
    w 7JFXपΓͷ࣮૷͕ಘҙ
    w 3Y+BWB΍%*ͷܦݧ͸

    ͋·Γͳͦ͞͏
    ؍࡯ɿνʔϜΛ஌Δ
    w ੹຿ͷڥք͸ਓʹ൑அ

    ͯ͠΋Β͓͏
    w ະܦݧͷٕज़Λͨ͘͞Μಋೖ

    ͢Δͷ͸ֶशίετߴ͍
    11
    

    View Slide

14. ࢖͏ٕज़ΛܾΊΔ
    12
    

    View Slide

15. ໨ࢦ͢͜ͱΛ໌֬ʹ
    w ׳Εɾ؆୯ΑΓ΋ɺ࢓૊Έ͕γϯϓϧͰมߋʹڧ͍͜ͱ
    w ఆٛ΍ݪཧͷਖ਼͠͞ΑΓࣗ෼ͨͪʹ߹͏͜ͱ
    w Ϟμϯελϯμʔυͳٕज़ʹ௥ै͢Δ͜ͱ
    ઃܭ΍ٕज़બఆͷ൑அ࣠
    13
    

    View Slide

16. αʔϏεಛੑʹ߹͏
    w σʔλऔಘઌΛந৅Խ͍ͨ͠
    w ಛఆൣғͷؔ৺ࣄΛՕॴʹू
    ໿͍ͨ͠
    w ෳ਺ͷ"1*͔ΒඇಉظͰऔಘɺ
    ଴ͪ߹Θͤɺ૊Έ߹Θͤ

    ؍࡯ͯ͠ݟ͚ͭͨղܾ͍ͨ͜͠ͱ
    14
    

    View Slide

17. αʔϏεಛੑʹ߹͏
    w σʔλऔಘઌΛந৅Խ͍ͨ͠
    w ಛఆൣғͷؔ৺ࣄΛՕॴʹू
    ໿͍ͨ͠
    w ෳ਺ͷ"1*͔ΒඇಉظͰऔಘɺ
    ଴ͪ߹Θͤɺ૊Έ߹Θͤ

    ؍࡯ͯ͠ݟ͚ͭͨղܾ͍ͨ͜͠ͱ
    ϦϙδτϦύλʔϯ
    %%%ͷ஋ΦϒδΣΫτ
    3Y+BWB
    ղܾͷͨΊͷٕज़
    14
    

    View Slide

18. ͍͖ͳΓֶशίετΛ্͛͗͢ͳ͍
    3Y+BWB
    ະܦݧͩͱ͜ΕͭͰ΋

    ֶशίετߴ͍
    -JWF%BUB %BUB#JOEJOH
    ·ͣ͸3Y+BWBʹ׳Εͯ΋Β͏
    %BHHFS
    ·ͣ͸ίϯετϥΫλΠϯδΣ
    Ϋγϣϯ͢Δ͜ͱʹ׳Εͯ΋Β
    ͏ʢ,PUMJOͷσϑΥϧτҾ਺ʣ
    ࠾༻ ࠓճݟૹΓ
    15
    

    View Slide

19. ܾΊͨཧ༝ΛυΩϡϝϯτʹ࢒͢
    w ໨ࢦ͍ͯ͠Δ͜ͱ
    w αʔϏεͷಛੑ
    w ղܾ͍ͨ͜͠ͱ
    w ΞʔΩςΫνϟͷ֓ཁ
    w ࣮૷ͷͨΊͷϥΠϒϥϦͨͪ
    w ύοέʔδߏ੒
    w ଥڠͨ͠఺
    w ࠾༻Λݟૹͬͨ΋ͷʢͱͦͷཧ༝ʣϦετ
    w ࢀߟʹͨ͠ॻ੶΍8FCϖʔδ
    ͳͥ͜͏ͳͬͯΔʁΛઆ໌

    Ͱ͖Δ
    ٕज़ͷਐาʹ߹Θͤͯɺ

    ܧଓతʹมߋͰ͖ΔΑ͏ʹ͢
    Δ
    16
    

    View Slide

20. औΓ૊ΜͰ͍Δઃܭ΍ख๏
    17
    

    View Slide

21. .77.ϨΠϠʔԽ
    3FQPTJUPSZ
    %PNBJO
    7JFX.PEFM
    7JFX
    w ΞʔΩςΫνϟ͸

    .77.ϨΠϠʔԽ
    18
    

    View Slide

22. 3FQPTJUPSZ
    w σʔλͷอଘͱऔಘ
    w 8FC"1*ͱϩʔΧϧʢ%#
    1SFGFSFODFTʣΛந৅Խ
    3FQPTJUPSZ
    %PNBJO
    7JFX.PEFM
    7JFX
    19
    

    View Slide

23. %PNBJO
    w ϏδωεϩδοΫ͸%PNBJOʹด͡ࠐ
    ΊΔ
    w ,PUMJOͷEBUBDMBTTΛ࢖ͬͯ஋Φϒ
    δΣΫτΛ࣮૷
    w ෭࡞༻ͷͳ͍ؔ਺Λ࣋ͭ
    3FQPTJUPSZ
    %PNBJO
    7JFX.PEFM
    7JFX
    20
    

    View Slide

24. 7JFX.PEFM
    7JFX.PEFM
    w දࣔͷͨΊͷঢ়ଶ؅ཧ
    w 7JFXΠϕϯτ͔Βඞཁͳॲཧ࣮ߦ
    3FQPTJUPSZ
    %PNBJO
    7JFX.PEFM
    7JFX
    21
    

    View Slide

25. 7JFX
    w 7JFX.PEFM͔ΒྲྀΕ͖ͯͨσʔλʹ൓
    Ԡ͢Δ͚ͩɺϩδοΫΛ࣋ͨͳ͍
    w JG จࣈྻ͕ۭ
    ͷΑ͏ͳ൑ఆϩδοΫΛ
    ॻ͍ͪΌͩΊ
    w "DUJWJUZ$POUFYU͸7JFX૚͚ͩͰ࢖͏ɺ
    7JFX૚Ҏ֎͸"QQMJDBUJPO$POUFYU
    3FQPTJUPSZ
    %PNBJO
    7JFX.PEFM
    7JFX
    22
    

    View Slide

26. 7JFX͔ΒϩδοΫΛണ͕͢
    w ͜Ε·Ͱ͸7JFXʹϩδοΫ͕ॻ͔Ε͍ͯͯɺͦΕʹ׳Εͨঢ়ଶ

    ͩͬͨɻ
    w ॳาతͳ಺༰͕ͩɺ·ͣ͸ͱʹ͔͘7JFXͱϩδοΫΛ෼཭͢Δɻ
    23
    

    View Slide

27. 7JFX͔ΒϩδοΫΛണ͕͢ɿվमલ
    %PNBJO
    24
    

    View Slide

28. 7JFX͔ΒϩδοΫΛണ͕͢ɿվमલ
    7JFX
    %PNBJO
    24
    

    View Slide

29. େྔͷJT&NQUZ
    ΍൑ఆ͕ϘσΟϒϩʔͷΑ͏ʹμϝʔδΛ༩͑Δɻɻɻ
    7JFX͔ΒϩδοΫΛണ͕͢ɿվमલ
    7JFX
    %PNBJO
    24
    

    View Slide

30. 7JFX͔ΒϩδοΫΛണ͕͢ɿվमޙ
    %PNBJO
    25
    

    View Slide

31. 7JFX͔ΒϩδοΫΛണ͕͢ɿվमޙ
    %PNBJO
    25
    

    View Slide

32. 7JFX͔ΒϩδοΫΛണ͕͢ɿվमޙ
    %PNBJO
    7JFX
    25
    

    View Slide

33. ίʔυ੔ཧͷεςοϓ
    7JFX
    26
    ϩδοΫ"
    7JFX 7JFX
    w 7JFXʹϩδοΫ͕

    ॻ͔Ε͍ͯΔঢ়ଶ
    w ಉ͡ϩδοΫ͕ෳ਺ͷը໘
    ʹॏෳ͍ͯ͠Δ
    ϩδοΫ" ϩδοΫ"
    ϩδοΫ$
    ϩδοΫ#
    ϩδοΫ#
    

    View Slide

34. 7JFX
    27
    7JFX 7JFX
    ϩδοΫ$
    ϩδοΫ" ϩδοΫ"
    ϩδοΫ#
    ϩδοΫ" ϩδοΫ#
    ίʔυ੔ཧͷεςοϓ
    

    View Slide

35. 7JFX
    27
    w ੔ཧͯ͠%PNBJOʹ

    ϩδοΫΛҠಈ
    %PNBJO %PNBJO
    7JFX 7JFX
    ϩδοΫ$
    ϩδοΫ" ϩδοΫ"
    ϩδοΫ#
    ϩδοΫ" ϩδοΫ#
    ίʔυ੔ཧͷεςοϓ
    

    View Slide

36. ৽7JFX
    27
    w ੔ཧͯ͠%PNBJOʹ

    ϩδοΫΛҠಈ
    %PNBJO %PNBJO
    7JFX 7JFX
    ϩδοΫ$
    ϩδοΫ" ϩδοΫ"
    ϩδοΫ#
    ϩδοΫ" ϩδοΫ#
    ίʔυ੔ཧͷεςοϓ
    w ͭͷը໘ͷ7JFXΛ

    ॻ͖׵͑Δ
    

    View Slide

37. ϩδοΫ" ϩδοΫ"
    ϩδοΫ#
    ৽7JFX
    28
    7JFX
    ϩδοΫ$
    %PNBJO %PNBJO
    ϩδοΫ" ϩδοΫ#
    ίʔυ੔ཧͷεςοϓ
    w ผͷը໘΋%PNBJOʹҠಈ
    ͨ͠ϩδοΫΛ࢖͏Α͏ʹ
    ͢Δ
    7JFX
    

    View Slide

38. ৽7JFX
    28
    w 7JFX૚ͷίʔυ͕ݮΔ
    7JFX
    ϩδοΫ$
    %PNBJO %PNBJO
    ϩδοΫ" ϩδοΫ#
    ίʔυ੔ཧͷεςοϓ
    w ผͷը໘΋%PNBJOʹҠಈ
    ͨ͠ϩδοΫΛ࢖͏Α͏ʹ
    ͢Δ
    7JFX
    

    View Slide

39. ৽7JFX
    29
    %PNBJO %PNBJO
    ϩδοΫ" ϩδοΫ#
    7JFX
    ϩδοΫ$
    ίʔυ੔ཧͷεςοϓ
    7JFX
    w ίʔυ͕ݮͬͨ7JFXΛ

    ॻ͖׵͑Δ
    

    View Slide

40. ৽7JFX
    29
    w ը໘୯ҐͰϦϑΝΫλΛ׬
    ྃͤ͞ɺશମͷஔ͖׵͑Λ
    ໨ࢦ͢
    %PNBJO %PNBJO
    ϩδοΫ" ϩδοΫ#
    ৽7JFX 7JFX
    ϩδοΫ$
    ίʔυ੔ཧͷεςοϓ
    w ίʔυ͕ݮͬͨ7JFXΛ

    ॻ͖׵͑Δ
    

    View Slide

41. ґଘؔ܎
    w 7JFX.PEFM͕7JFXΛ஌Βͳ͍

    Α͏ʹ͢Δ͜ͱ
    w %PNBJO͕ଞʹґଘ͠ͳ͍͜ͱ
    7JFX.PEFM
    7JFX
    3FQPTJUPSZ
    %PNBJO
    30
    

    View Slide

42. σʔλͷྲྀΕ
    %PNBJO4FSWJDF ஋ΦϒδΣΫτ
    7JFX.PEFM
    7JFX
    3FQPTJUPSZ
    3Y+BWB4USFBN
    ؔ਺ݺͼग़͠
    31
    

    View Slide

43. σʔλͷྲྀΕ
    %PNBJO4FSWJDF ஋ΦϒδΣΫτ
    7JFX.PEFM
    7JFX
    3FQPTJUPSZ
    3Y+BWB4USFBN
    ؔ਺ݺͼग़͠
    w 3Y+BWBͷ4USFBNΛ4VCTDSJCF

    ͢Δͷ͸7JFX૚ͷΈʹ੍ݶ
    w 4VCKFDU 1SPDFTTPS
    ͸࢖Θͳ͍
    3Y+BWBͷར༻ϧʔϧΛઃ͚ɺ
    ֶशίετ௿Լϝϯςφϯεੑ
    ޲্Λ໨ࢦ͢
    31
    

    View Slide

44. औΓ૊Μͩ݁Ռ
    32
    

    View Slide

45. औΓ૊Έͱ݁Ռ
    w ࠷΋ར༻਺ͷଟ͍τοϓը໘ΛϦϑΝΫλϦϯά׬ྃ
    w ݕ౼ɾઃܭɾ։ൃ߹Θͤͯϲ݄͘Β͍
    w େ͖ͳόάͳͲͳ͘ɺίʔυͷݟ௨͕͠ྑ͘ͳͬͨ
    w ։ൃ͠΍͍͢ঢ়ଶʹͳΓɺΤϯδχΞ͔Β৽ػೳͷఏҊ΋
    33
    

    View Slide

46. νʔϜͷมԽ
    w ઃܭʹ͍ͭͯٞ࿦͢Δස౓͕૿͑ͨɻ

    ڭ͑ΔڭΘΔؔ܎͔Β͓ޓ͍ʹֶ΂Δؔ܎΁ͷมԽɻ
    w ݟૹͬͨ෦෼΍ଥڠ఺ʹରͯٙ͠໰ɺ࣍ʹऔΓ૊Ή΂͖͜ͱ͕ݟ͖͑ͯͨɻ
    w ίϯετϥΫλΠϯδΣΫγϣϯݫ͘͠ͳ͍ʁ
    w ੒௕࣮ײ͢Δͷخ͍͠ʂ
    34
    

    View Slide

47. ͋Γ͕ͱ͏͍͟͝·ͨ͠
    :BIPPχϡʔεΞϓϦͥͻ͝ར༻͍ͩ͘͞
    35
    

    View Slide