そして物語は何度目かのアプリ内通知再実装を迎える / Reimplement in app notification

京都なんか #2 の資料です

Transcript

1. ͦͯ͠෺ޠ͸Կ౓໨͔ͷ
 ΞϓϦ಺௨஌࠶࣮૷Λܴ͑Δ @moznion
2. @moznion
3. ΞϓϦ಺௨஌
4. ྫ͑͹͜͏͍͏ͷ
6. ྫ͑͹͜͏͍͏ͷ
7. ΞϓϦ಺௨஌Ͳ͏ͯ͠·͔͢ - ࠷ۙ͜͏΍ͬͯ·͢Αͱ͍͏࿩୊ - ࣮ࡍࠓ΋ͪΐͬͱ೰ΜͰ͍Δ
 ͱ͍͏εςʔλε
8. ΞϓϦ಺௨஌ͷ๊͑Δ໰୊
9. ΞϓϦ಺௨஌ͷ๊͑Δ໰୊ - ΞϓϦ಺௨஌͕ສೳͩͱ
 ࢥΘΕ͍ͯΔ
10. ΞϓϦ಺௨஌ͷ๊͑Δ໰୊ - ΞϓϦ಺௨஌͕ສೳͩͱ
 ࢥΘΕ͍ͯΔ ສೳͰ͸ͳ͍
11. ΞϓϦ಺௨஌ͷ๊͑Δ໰୊ - ༗ޮͳσʔλϞσϧΛߟ͑Δͷ͕೉͍͠ - τϨʔυΦϑ͕ੜ·Ε͕ͪ - writeʹڧ͘͢Δͷ͔ - readʹڧ͘͢Δͷ͔ - ͲͪΒ΋͔ (ͦΜͳͷ͋Δͷ͔) - ࣮ࡍͦͷลྑ͍Ϟσϧͬͯ͋ΔΜͰ͔͢ʁ
12. σʔλϞσϧͷτϨʔυΦϑ - ྫ) ૉ๿ͳmailboxͷΑ͏ͳ࢓૊Έ - Read͕؆୯ - Subscriberʹඥͮ͘boxΛಡΊ͹ྑ͍ - Write͕ଟ͘ͳΔ - Subscriberʹൺྫ͢Δ
13. σʔλϞσϧͷτϨʔυΦϑ - ྫ) ௨஌͕1rowͰsubscriber৘ใ͕ͿΒԼ͕Δ - Write͕؆୯ (গͳ͍) - 1௨஌1writeͰࡁΉ - Read͕೉͘͠ͳΔ - ಡΜͰ͘Δͱ͖ʹෳࡶͳΫΤϦ͕ཁΓ͕ͪ - JOIN஍ࠈ (΋͘͠͸ఱࠃ)
14. ࢓༷͔Βߟ͑Δ
15. ΞϓϦ಺௨஌ͷಛੑ (mailboxత࣮૷ͷ৔߹)
16. ΞϓϦ಺௨஌ͷಛੑ (Ծఆ) - ଈ࣌ੑ͕ཉ͍͠ - ͕͋Δఔ౓ͷ஗Ԇ͸ڐ༰Ͱ͖Δ - (ڐ༰ग़དྷͳ͍৔߹΋͋Δ) - աڈʹḪͬͯϞϦϞϦݟΔɼΈ͍ͨͳػೳ͸ ఏڙ͠ͳͯ͘ྑ͍ - ͋Δఔ౓Ͱ৘ใͷอ͕࣋ଧͪ੾ΓՄೳ
17. ͋·Γؔ܎ͳ͍Ͱ͕͢ twitter App ͸ λΠϜϥΠϯͷ աڈϖʔδϯάΛ ఘΊ·ͨ͠Ͷ ͜ΕҎ্ಡΊͳ͍
18. ԿΛҎͬͯͯ͠อ࣋Λଧͪ੾Δ͔ - ௨஌݅਺ - ࣌ؒܦա
19. - ௨஌݅਺ - ࣌ؒܦա ͲͪΒͰ΋ྑ͍ͱࢥ͏ ԿΛҎͬͯͯ͠อ࣋Λଧͪ੾Δ͔
20. - ௨஌݅਺Λج४ͱ͢Δ - ͋ΔϢʔβʹର͢Δσʔλ༰ྔ͕
 ߴʑN݅෼ʹݻఆͰ͖Δ - σʔλྔ͕༧ଌ͠΍͍͢ - ௨஌͕୹࣌ؒʹେྔʹૹΒΕΔͱ
 Ϣʔβଆ͕ݟΕͳ͘ͳΔͱ͍͏໰୊͸͋Δ ԿΛҎͬͯͯ͠อ࣋Λଧͪ੾Δ͔
21. - ࣌ؒܦաΛج४ͱ͢Δ - ௨஌͕୹࣌ؒʹେྔʹૹΒΕͯ΋Ұఆ͕࣌ؒ ܦա͢Δ·Ͱ͸ഁغ͞Εͳ͍ͷͰಡΊΔ - ϢʔβʹΑΓσʔλͷ࠷େྔ͕ҟͳΔͷͰ
 ༧ଌ͠ʹ͍͘ - ͢͞·͍͡਺Λfollow͢ΔϢʔβͱ͔ - ͍ΔΜͰ͢ΑͶ ԿΛҎͬͯͯ͠อ࣋Λଧͪ੾Δ͔
22. - େྔʹ௨஌͕ཷ·͍ͬͯΔ࣌ɼ
 Ռͨͯ͠Ϣʔβ͸ಡΉͷ͔Ͳ͏͔ - ͍͍ͤͥNݸ͋Ε͹ྑ͍ΑͶɼ
 Έ͍ͨͳ৔߹͕ଟ͍ؾ͕͢Δ - ͱ͸͍͑͜ͷ΁Μ͸αʔϏεͷಛੑʹΑΔ - τϨʔυΦϑ ԿΛҎͬͯͯ͠อ࣋Λଧͪ੾Δ͔
23. ࢓༷ϨϕϧͰ ͋Δఔ౓ݱ࣮తʹ͢Δ - ࢓༷Ͱ͋Δఔ౓ແཧͳػೳΛ஄͘ - ແݶʹϖʔδωʔγϣϯ͍ͨ͠ͱ͔ - ฒͼॱΛϢʔβ͝ͱʹࣗ༝ʹઃఆ͍ͨ͠ͱ͔ - ະདྷӬ߷ফ͑ͳ͍ͱ͔ - (͔͠͠αʔϏεͷಛੑʹΑΔ) - ΞϓϦ಺௨஌͸ۜͷ஄ؙͰ͸ͳ͍
24. ͦΕ͸ͦ͏ͱ
25. ϢʔβA͕ϢʔβBΛfollowͨ࣌͠ʹɼ ϢʔβBͷաڈͷ௨஌ΛͲ͏͢΂͖͔
26. Ͳ͏͢΂͖͔ - ݟํͷ໰୊ - ͦΕ͸ʮ௨஌ʯͳͷ͔ʁ - ͦΕ͸ʮλΠϜϥΠϯʯͳͷ͔ʁ
27. Ͳ͏͢΂͖͔ - ʮ௨஌ʯͷ৔߹ - ೖΕΔඞཁͳ͠ - ௨஌͸ͦͷλΠϛϯά͋Γ͖Ͱ Ձ஋͕͋Δ৘ใ
28. Ͳ͏͢΂͖͔ - ʮλΠϜϥΠϯʯͷ৔߹ - ೖΕΔඞཁ͋Δ - ͔͠͠ࠓճ͸ʮ௨஌ʯͷ࿩ - ͜Εݴ͍࢝ΊͨΒͳΜ͔צҧ͍Λ ͍ͯ͠ΔՄೳੑ͋Δ
29. ݴͬͯΔ͜ͱ͸Θ͔Δ - ΞϓϦ಺ʹʮλϒʯͱͯ͠௨஌͕͋Δͱ
 λΠϜϥΠϯͩͱࢥͬͪΌ͏ - Θ͔ΔΘ͔Δ - ͔͠͠ҧ͏ (ҧ͏ͱ͍͏৔߹͕ଟ͍) - ͜͜Β΁Μࠞಉ͢Δͱෆ޾͕΍͖ͬͯ·͢
30. ͸͍
31. ࢓༷ײ͕͋Δఔ౓ڞ༗ Ͱ͖ͨͱ͜ΖͰ໰୊Λ ݟͯΈ·͠ΐ͏
32. ΞϓϦ಺௨஌ͷ๊͑Δ໰୊ - ༗ޮͳσʔλϞσϧΛߟ͑Δͷ͕೉͍͠ - τϨʔυΦϑ͕ੜ·Ε͕ͪ - writeʹڧ͘͢Δͷ͔ - readʹڧ͘͢Δͷ͔ - ͲͪΒ΋͔ (ͦΜͳͷ͋Δͷ͔) - ࣮ࡍͦͷลྑ͍Ϟσϧͬͯ͋ΔΜͰ͔͢ʁ
33. ͔͜͜Βઌ͸զʑ͕
 Ͳ͏΍͔ͬͨͱ͍͏࿩ʹͳΓ·͢
34. എܠ
35. എܠ - Java 8ͰΞϓϦέʔγϣϯΛॻ͍͍ͯΔ - ͍ΘΏΔmicroservicesΈ͍ͨͳߏ੒ - ࢖͑ΔετϨʔδͷछྨ͸ෳ਺͋Δ - MySQL - Redis - Elasticsearch - Memcached - ͦͦ͜͜Ϣʔβ਺͕͋Δ
36. ํ਑ - MailboxͰ΍Ζ͏ - ௚ײతͰ͋Δ - σʔλྔͷ༧ଌ͕͋Δఔ౓ͭ͘ - ͱΓ͋͑ͣ௨஌ݸ਺ϕʔεͰ΍Δ
37. Ͳ͏΍Δ͔ - ʮ໰୊ʯͰॻ͍ͨΑ͏ʹɼ
 RDBMS (SQL) Ͱ্ख͘΍Δํ๏Λ
 ฤΈग़ͤͳ͔ͬͨ - ࠓʹͳͬͯͬ͘͡Γߟ͑ͯΈΔͱ
 ग़དྷͨؾ͕͢Δ (γϟʔσΟϯάͱ͔)
38. Ͳ͏΍Δ͔ - ͔͠͠༰ࣻͳ͘కΊ੾Γ͸͍ۙͮ ͯ͘Δ (਎ʹ͕֮͑͋ΔͰ͠ΐ͏) - Α͠ɼ͜͜͸ҰஸRedisͰ΍Ζ͏
39. Redis
40. Redis - આ໌ུ - LIST΍ΒZSET΍Βɼ
 ௨஌ʹ޲͍͍ͯͦ͏ͳσʔλߏ଄͕
 αϙʔτ͞Ε͍ͯͯศར
41. Redis Cluster - Version 3͔Βఏڙ͞Ε͍ͯΔ ClusteringػೳΛར༻͍ͯ͠Δ - TODO: ͜͜ͰRedis ClusterΛ
 ๙Ίশ͑Δ
42. Ͳͷσʔλߏ଄Λ
 ࠾༻͢Δ͔
43. Ͳͷσʔλߏ଄Λ࠾༻͢Δ͔ - LIST - γϯϓϧ - LPUSH/RPOPΛ૊Έ߹ΘͤΔͱ
 ؆୯ʹQueueͷΑ͏ͳߏ଄Λ࣮ݱ Ͱ͖Δ
44. Ͳͷσʔλߏ଄Λ࠾༻͢Δ͔ - ZSET - ιʔτࡁΈηοτ - Α͘ϥϯΩϯάͷ࣮૷ͱ͔ʹ࢖ΘΕΔ΍ͭ - TimestampΛscoreʹͯ͠ɼͦΕΛ ZREVRANGE ͱ͔ͰҾ͍ͯ͘Δͱ࠷৽ॱͰऔͬͯ͜ΕΔ - ॱҐ΍είΞϕʔεͰ੾Γ٧Ί΋Ͱ͖ΔͷͰศར
45. ͲΕʹͨ͠ͷ͔
46. Ͳͷσʔλߏ଄Λ࠾༻͢Δ͔ ZSETʹͨ͠
47. ZSETʹͨ͠ - Timestamp ͷ߱ॱͰදࣔ͞ΕΔͷͰɼ ΋͠΋Կ͔͋ͬͨ࣌ʹλΠϜελϯϓ Λج४ͱͯ͠௨஌ίϯςϯπͷௐ੔
 ͕ޮ͘
48. ZSETʹͨ͠ - ͨͱ͑͹ʢࢄʑ൱ఆͯͨ͠Μ͚ͩͲʣ ৗʹઌ಄ʹද͍ࣔͨ͠ɼΈ͍ͨͳͷ͕ དྷͨ࣌ʹ΋ରԠ͕ग़དྷΔ
 (ແݶʹେ͖͍஋Λ score ʹͯ͠΍Δͱ ࣮ݱ͕Ͱ͖Δ)
49. ZSETʹͨ͠ - ͨͱ͑͹ʢࢄʑ൱ఆͯͨ͠Μ͚ͩͲʣ ৗʹઌ಄ʹද͍ࣔͨ͠ɼΈ͍ͨͳͷ͕ དྷͨ࣌ʹ΋ରԠ͕ग़དྷΔ
 (ແݶʹେ͖͍஋Λ score ʹͯ͠΍Δͱ ࣮ݱ͕Ͱ͖Δ) ੈͷதԿ͕ى͜Δ͔Θ͔Βͳ͍
50. ZSETʹͨ͠ - ݸ਺ϕʔεͷmailboxʹ΋ɼ
 ࣌ؒܦաϕʔεͷmailboxʹ΋
 ରԠͰ͖Δ
51. ZSETʹͨ͠ - ݸ਺ϕʔεͷmailboxʹ΋ɼ
 ࣌ؒܦաϕʔεͷmailboxʹ΋
 ରԠͰ͖Δ ੈͷதԿ͕ى͜Δ͔Θ͔Βͳ͍
52. ZSETʹͨ͠ - ෭࡞༻͚ͩΕͲ - จݴ͕ಉ͔ͭ͡timestamp͕ҧ͏ͱ͍͏ΞΠςϜ ͕དྷͨ৔߹ɼ৽͘͠དྷͨ΋ͷ͕༏ઌ͞ΕΔ
 => μϒΓ͕ͳ͘ͳΔ - ͜Ε͕ศརͳ৔߹ͱศརͰ͸ͳ͍৔߹͕
 ͋Γͦ͏͕ͩࠓճ͸ศརͩͬͨ
53. ະಡ؅ཧͲ͏͢Δ͔
54. ະಡ؅ཧͲ͏͢Δ͔ - ଟ͘ͷΞϓϦ಺௨஌Ͱ͸
 ະಡ؅ཧͷ࣮૷͕ཁٻ͞ΕΔ - Կ݅ཷ·ͬͯΔ͔ɼͱ͔ - ͲΕ͕৽ணͷ௨஌͔ɼͱ͔
55. ະಡ؅ཧ - MailboxͱରԠ͢ΔΧ΢ϯλͷΤ ϯτϦΛredis಺ʹ࣋ͭΑ͏ʹͨ͠ - ৽͍͠௨஌͕དྷͨࡍʹZSETʹ
 ௥Ճ͢Δͱಉ࣌ʹΧ΢ϯλΛINCR
56. Add notification notification|{subscriberId} - Notification unreadCount|{subscriberId} - Unread count
57. Add notification notification|{subscriberId} - Notification unreadCount|{subscriberId} - Unread count ZADD
58. Add notification notification|{subscriberId} - Notification unreadCount|{subscriberId} - Unread count INCR
59. Add notification notification|{subscriberId} - Notification unreadCount|{subscriberId} - Unread count INCR ZADD ಉ࣌ʹߦ͏ (ޙड़)
60. ະಡ؅ཧ - ΫϥΠΞϯτ͔ΒϦΫΤετ͕͋ͬͨ࣌ ʹ௨஌ͱҰॹʹΧ΢ϯτΛฦͯ͠΍Δ - ΫϥΠΞϯτ͸ͦͷΧ΢ϯτΛ࢖ͬͯ ʮ͜Ε͕৽ணʯͱ͍͏ݟͤํ͕Ͱ͖Δ - ͦͷ࣌ʹΧ΢ϯλ͸ΫϦΞͯ͠΍Δ
61. Client Get notification
62. Client Get notification Return notification and unread count
63. Client Get notification Return notification and unread count SET unreadCount|{subscriberId} 0 ͱಉ࣌ʹ
64. ະಡ؅ཧ - ৭ʑ࢖͍Ͱ͕͋ΔͷͰະಡΧ΢ϯ τ͚ͩΛฦ͢API΋ఏڙ͍ͯ͠Δ - શମతʹγϯϓϧ
65. AtomicʹredisΛ
 ૢ࡞͢Δ
66. AtomicʹredisΛૢ࡞͢Δ - 1subscriber͋ͨΓͷ௨஌Λ࣮ݱ ͢Δʹ͋ͨͬͯredis಺ʹ2Τϯτ Ϧඞཁͱͳͬͨ - Atomicʹૢ࡞͢Δඞཁ͕ग़ͯ͘Δ
67. Add notification notification|{subscriberId} - Notification unreadCount|{subscriberId} - Unread count INCR ZADD ಉ࣌ʹߦ͏
68. AtomicʹredisΛૢ࡞͢Δ - Redis TransactionΛ࢖͏ - MULTI-EXECΛ࢖͏ํ๏ - ͋·ΓΦεεϝͰ͖ͳ͍ - Redis Scriptingͷํ͕ߴ଎ - ͍ͣΕػೳ͔Βআڈ͢Δ͔΋ͬͯݴͬͯΔ
69. AtomicʹredisΛૢ࡞͢Δ - Redis ScriptingΛ࢖͏ - LuaʹΑΔscriptingΛ࢖͏ํ๏ - Redis TransactionΑΓߴ଎ - 1Script಺ͷૢ࡞͸atomicʹߦΘΕΔ - ཁ͸ྑ͍ετΞυΈ͍ͨͳ΍ͭͰ͢
70. Redis Scripting - EVALίϚϯυ͸LuaεΫϦϓτΛ
 ຖճredis serverʹૹ৴͢Δ - EVALίϚϯυͰLuaεΫϦϓτΛ࣮ߦ ͢ΔͱͦͷεΫϦϓτ͕SHA1ͷKeyʹ ͳͬͯredis server಺ʹ֨ೲ͞ΕΔ
71. Redis Scripting - Ұ౓SHA1͕ొ࿥͞Εͯ͠·͑͹ɼ
 Ҏ߱͸ͦͷSHA1ΛEVALSHAίϚϯυ Ͱ౉͢Α͏ʹ͢Δͱಈ࡞͢Δ - ଳҬΛઅ໿Ͱ͖Δʂ
72. EVAL foo
73. EVAL foo Register sha1(foo) {sha1(foo) => foo}
74. EVAL foo Register sha1(foo) Execute foo {sha1(foo) => foo}
75. EVAL foo Register sha1(foo) Execute foo (Result of foo) {sha1(foo) => foo}
76. Remembering sha1(foo) {sha1(foo) => foo}
77. EVALSHA sha1(foo) Remembering sha1(foo) {sha1(foo) => foo}
78. EVALSHA sha1(foo) Remembering sha1(foo) {sha1(foo) => foo} Execute foo
79. EVALSHA sha1(foo) Remembering sha1(foo) {sha1(foo) => foo} Execute foo (Result of foo)
80. Redis Scripting - ͍͍ͪͪͦ͏͍͏ॲཧΛॻ͘ͷ΋໘౗ ͍͘͞ͷͰwrapperΛॻ͍ͨ - https://github.com/moznion/redis- script-manager-core - த਎͸@shogo82148͞Μͷ
 p5-Redis-ScriptͷҠ২
81. Redis Scripting - ϒϩάʹॻ͍͓͍ͯͨ - http://moznion.hatenadiary.com/entry/ 2016/05/10/214648
82. શମ૾ͱͯ͠
 Ͳ͏ͳ͍ͬͯΔͷ͔
83. Redis (JobQueue) Redis Cluster Worker Business Domain
84. ؆୯ͳྲྀΕ (഑ૹฤ) 1. ϏδωευϝΠϯ͕JobQueueʹ௨஌ͷ ͨΊͷpayloadΛͭΊΔ 2. Worker͕payloadΛऔͬͯ͘Δ 3. Worker͕ରԠ͢Δsubscriberʹ௨஌Λඈ ͹͢
85. i. Enqueue a job to deliver notification ii. Pickup a job iii. Deliver notification Redis (JobQueue) Redis Cluster Worker Business Domain
86. ؆୯ͳྲྀΕ (഑ૹฤ) 1. ϏδωευϝΠϯ͕JobQueueʹ௨஌ͷ ͨΊͷpayloadΛͭΊΔ 2. Worker͕payloadΛऔͬͯ͘Δ 3. Worker͕ରԠ͢Δsubscriberʹ௨஌Λඈ ͹͢
87. i. Enqueue a job to deliver notification ii. Pickup a job iii. Deliver notification Redis (JobQueue) Redis Cluster Worker Business Domain
88. JobQueueʹPayloadΛͭΊΔ - NotificationDeliverer Interface - deliver(String json) ͱ͍͏
 ந৅methodΛ࣋ͬͨInterface
89. JobQueueʹPayloadΛͭΊΔ - NotificationDeliverer#deliver(String json) - ୭ʹૹΔ͔ (Ͳͷredis entryʹ഑ૹ͢Δ͔) - Push௨஌͕ඞཁ͔Ͳ͏͔ - Λҙ࣮ࣝͭͭ͠૷͢Δ
90. JobQueueʹPayloadΛͭΊΔ - ೚ҙͷNotificationDelivererͷ࣮૷ͷclass name
 (ForAllUserDeliverer.classΈ͍ͨͳ) - Delivererͷ࣮૷΁ͷarguments - MessageΛද͢JSON String (ޙड़) - ΛPayloadͱͯ͠JobQueueʹͭΊΔ
91. ؆୯ͳྲྀΕ (഑ૹฤ) 1. ϏδωευϝΠϯ͕JobQueueʹ௨஌ͷ ͨΊͷpayloadΛͭΊΔ 2. Worker͕payloadΛऔͬͯ͘Δ 3. Worker͕ରԠ͢Δsubscriberʹ௨஌Λඈ ͹͢
92. i. Enqueue a job to deliver notification ii. Pickup a job iii. Deliver notification Redis (JobQueue) Redis Cluster Worker Business Domain
93. Worker͕payloadΛऔͬͯ͘Δ - ରԠ͢ΔWorker͕JobQueue͔Β payloadΛऔͬͯ͘Δ - Ҏ্
94. ؆୯ͳྲྀΕ (഑ૹฤ) 1. ϏδωευϝΠϯ͕JobQueueʹ௨஌ͷ ͨΊͷpayloadΛͭΊΔ 2. Worker͕payloadΛऔͬͯ͘Δ 3. Worker͕ରԠ͢Δsubscriberʹ௨஌Λඈ ͹͢
95. i. Enqueue a job to deliver notification ii. Pickup a job iii. Deliver notification Redis (JobQueue) Redis Cluster Worker Business Domain
96. ௨஌Λඈ͹͢ - Worker͸औ͖ͬͯͨpayload͔Β ʮNotificationDelivererͷ࣮૷ͷ class nameʯΛऔΓग़͠ɼ reflectionΛ࢖ͬͯinstantiate͢Δ
97. JobQueueʹPayloadΛͭΊΔ - ೚ҙͷNotificationDelivererͷ࣮૷ͷclass name
 (ForAllUserDeliverer.classΈ͍ͨͳ) - Delivererͷ࣮૷΁ͷarguments - MessageΛද͢JSON String (ޙड़) - ΛPayloadͱͯ͠JobQueueʹͭΊΔ
98. ௨஌Λඈ͹͢ - ͦͷΠϯελϯεͷ
 deliver(String json)Λpayload಺ʹ
 ؚ·Ε͍ͯͨJSONΛ࢖ͬͯݺͼग़͢ - ࣮૷ʹج͍ͯ௨஌͕ඈͿ
99. JobQueueʹPayloadΛͭΊΔ - ೚ҙͷNotificationDelivererͷ࣮૷ͷclass name
 (ForAllUserDeliverer.classΈ͍ͨͳ) - Delivererͷ࣮૷΁ͷarguments - MessageΛද͢JSON String (ޙड़) - ΛPayloadͱͯ͠JobQueueʹͭΊΔ
100. ௨஌Λඈ͹͢ - ௨஌͕ඈͿͱݴͬͯ΋࣮ࡍʹ͸subscriberͷ mailbox (ZSET) ʹ௥Ճ͞ΕΔ͚ͩ - Score͸λΠϜελϯϓ - Valueʹ͸deliver() ʹ౉͖ͬͯͨJSON͕ͦͷ·· ೖΔ - ͦͷ࣌௨஌ݸ਺͕ଟ͚Ε͹ݹ͍΋ͷΛ௥͍ग़͢
101. ValueͷJSONʹ͸Կ͕
 ೖ͍ͬͯΔͷ͔
102. JSONʹ͸Կ͕ʁ - NotificationMessageFactoryΛ࣮ ૷ͨ͠classͷclass name - ϓϨʔεϗϧμ಺ʹೖΔΞΠς ϜͷJSON
103. JSONʹ͸Կ͕ʁ - NotificationMessageFactory - String makeNotificationMessage(
 T bind,
 Language lang
 ) - ͱ͍͏ந৅methodΛ࣋ͭInterface
104. JSONʹ͸Կ͕ʁ - makeNotificationMessage() - ௨஌ϝοηʔδΛ૊ΈཱͯΔ - Payload͔Βऔ͖ͬͯͨJSONΛ σγϦΞϥΠζͨ͠΋ͷΛ࢖͏ - ଟݴޠԽ΋͜͜Ͱٵऩ
105. ྫ
106. JSONʹ͸Կ͕ʁ - αʔόαΠυͰ௨஌จݴΛ૊ΈཱͯΔ ͱ͍͏લఏ (ޙड़) - ੜϝοηʔδ͕ೖͬͯΔͱi18n͕΍Γ ʹ͍͘ - ͷͰ͜͏͍͏ߏ੒ʹ
107. ؆୯ͳྲྀΕ (औಘฤ) 1. ௨஌ΛҾ͍ͯ͘Δ 2. Ҿ͍͖ͨͨ௨஌શ෦ʹରͯ͠
 ϝοηʔδΛ૊ΈཱͯΔ
108. o. Get Redis (JobQueue) Redis Cluster Worker Business Domain i. Retrieve notification ii. Construct notification messages iii. Return
109. ؆୯ͳྲྀΕ (औಘฤ) 1. ௨஌ΛҾ͍ͯ͘Δ 2. Ҿ͍͖ͨͨ௨஌શ෦ʹରͯ͠
 ϝοηʔδΛ૊ΈཱͯΔ
110. o. Get Redis (JobQueue) Redis Cluster Worker Business Domain i. Retrieve notification ii. Construct notification messages iii. Return
111. ௨஌ΛҾ͍ͯ͘Δ - ର৅ͱͳΔsubscriberͷmailbox (ZSET) ͔Β௨஌ΛҾ͍ͯ͘Δ - ZREVRANGEίϚϯυ
112. ؆୯ͳྲྀΕ (औಘฤ) 1. ௨஌ΛҾ͍ͯ͘Δ 2. Ҿ͍͖ͨͨ௨஌શ෦ʹରͯ͠
 ϝοηʔδΛ૊ΈཱͯΔ
113. o. Get Redis (JobQueue) Redis Cluster Worker Business Domain i. Retrieve notification ii. Construct notification messages iii. Return
114. ϝοηʔδΛ૊ΈཱͯΔ - Ҿ͍͖ͯͨ௨஌͸JSON String - ͔͜͜Βਓ͕ಡΊΔϝοηʔδΛ ૊ΈཱͯΔඞཁ͕͋Δ
115. JSONʹ͸Կ͕ʁ - NotificationMessageFactoryΛ
 ࣮૷ͨ͠classͷclass name - ϓϨʔεϗϧμ಺ʹೖΔΞΠς ϜͷJSON
116. ϝοηʔδΛ૊ΈཱͯΔ - NotificationMessageFactoryΛ࣮૷ͨ͠classͷ class nameΛ࢖ͬͯreflectionͰinstantiate - makeNotificationMessage() ݺͿ - ΞΠςϜͷJSONΛ࢖ͬͯϓϨʔεϗϧμΛຒΊΔ - ୺຤ͷݴޠ৘ใʹج͖ͮ࠷దͳݴޠͰ૊ΈཱͯΔ
117. LLͷྑ͍ͱ͜ΖΛ
 आΓ͖࣮ͯͨ૷ͱ͍͏ײ͡
118. - ͱ͸͍࣮͑ߦ࣌ྫ֎͕όϯόϯ ى͖Δͷ͸ࠔΔͷͰɼ
 δΣωϦΫεͰറ͍ͬͯΔײ͡ - ΠϯϓοτͷνΣοΫΛݫ֨ʹ
119. ͔͠͠ReflectionͰinstantiate
 ͢Δͱίετߴͦ͏ͩ͠ɼ
 ͔͠΋ຖ౓ຖ౓΍Δͷμα͘ͳ͍ʁ
120. FlyWeight - FlyWeightͰ΍Ε͹҆৺ - Ϋϥεࣗମ͸ΠϛϡʔλϒϧͳͷͰ ࢖͍ճ͕͠ޮ͘ - ·͍ͨͭͰʹ sprint ͱ͍͏΋ͷ΋
 ॻ͍ͨ
 https://github.com/moznion/sprint
121. ͱ͍͏ײ͡ ࣮ࡍʹͪΌΜͱಈ͍ͯΔʂ ΊͰͨ͠ΊͰͨ͠
122. ͱ͸ͳΒͳ͍
123. ໰୊ - Ͳ͏ͯ͠΋Redisʹෛՙ͕ूத͠ ͯ͠·͏…… - ௨஌഑৴࣌ͷτϥϑΟοΫͷ޲্ - σʔλαΠζͷ্ঢ
124. Ͳ͏͢΂͖͔
125. Ͳ͏͢΂͖͔ - RedisΛγϟʔσΟϯάͯ͠࢖͏ ͱ͔……ʁ
126. ະ׬