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

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ͦͯ͠෺ޠ͸Կ౓໨͔ͷ  ΞϓϦ಺௨஌࠶࣮૷Λܴ͑Δ @moznion

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@moznion

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ΞϓϦ಺௨஌

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ྫ͑͹͜͏͍͏ͷ

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No content

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ྫ͑͹͜͏͍͏ͷ

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ΞϓϦ಺௨஌Ͳ͏ͯ͠·͔͢ - ࠷ۙ͜͏΍ͬͯ·͢Αͱ͍͏࿩୊ - ࣮ࡍࠓ΋ͪΐͬͱ೰ΜͰ͍Δ  ͱ͍͏εςʔλε

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ΞϓϦ಺௨஌ͷ๊͑Δ໰୊

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ΞϓϦ಺௨஌ͷ๊͑Δ໰୊ - ΞϓϦ಺௨஌͕ສೳͩͱ  ࢥΘΕ͍ͯΔ

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ΞϓϦ಺௨஌ͷ๊͑Δ໰୊ - ΞϓϦ಺௨஌͕ສೳͩͱ  ࢥΘΕ͍ͯΔ ສೳͰ͸ͳ͍

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ΞϓϦ಺௨஌ͷ๊͑Δ໰୊ - ༗ޮͳσʔλϞσϧΛߟ͑Δͷ͕೉͍͠ - τϨʔυΦϑ͕ੜ·Ε͕ͪ - writeʹڧ͘͢Δͷ͔ - readʹڧ͘͢Δͷ͔ - ͲͪΒ΋͔ (ͦΜͳͷ͋Δͷ͔) - ࣮ࡍͦͷลྑ͍Ϟσϧͬͯ͋ΔΜͰ͔͢ʁ

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σʔλϞσϧͷτϨʔυΦϑ - ྫ) ૉ๿ͳmailboxͷΑ͏ͳ࢓૊Έ - Read͕؆୯ - Subscriberʹඥͮ͘boxΛಡΊ͹ྑ͍ - Write͕ଟ͘ͳΔ - Subscriberʹൺྫ͢Δ

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σʔλϞσϧͷτϨʔυΦϑ - ྫ) ௨஌͕1rowͰsubscriber৘ใ͕ͿΒԼ͕Δ - Write͕؆୯ (গͳ͍) - 1௨஌1writeͰࡁΉ - Read͕೉͘͠ͳΔ - ಡΜͰ͘Δͱ͖ʹෳࡶͳΫΤϦ͕ཁΓ͕ͪ - JOIN஍ࠈ (΋͘͠͸ఱࠃ)

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࢓༷͔Βߟ͑Δ

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ΞϓϦ಺௨஌ͷಛੑ (mailboxత࣮૷ͷ৔߹)

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ΞϓϦ಺௨஌ͷಛੑ (Ծఆ) - ଈ࣌ੑ͕ཉ͍͠ - ͕͋Δఔ౓ͷ஗Ԇ͸ڐ༰Ͱ͖Δ - (ڐ༰ग़དྷͳ͍৔߹΋͋Δ) - աڈʹḪͬͯϞϦϞϦݟΔɼΈ͍ͨͳػೳ͸ ఏڙ͠ͳͯ͘ྑ͍ - ͋Δఔ౓Ͱ৘ใͷอ͕࣋ଧͪ੾ΓՄೳ

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͋·Γؔ܎ͳ͍Ͱ͕͢ twitter App ͸ λΠϜϥΠϯͷ աڈϖʔδϯάΛ ఘΊ·ͨ͠Ͷ ͜ΕҎ্ಡΊͳ͍

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ԿΛҎͬͯͯ͠อ࣋Λଧͪ੾Δ͔ - ௨஌݅਺ - ࣌ؒܦա

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- ௨஌݅਺ - ࣌ؒܦա ͲͪΒͰ΋ྑ͍ͱࢥ͏ ԿΛҎͬͯͯ͠อ࣋Λଧͪ੾Δ͔

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- ௨஌݅਺Λج४ͱ͢Δ - ͋ΔϢʔβʹର͢Δσʔλ༰ྔ͕  ߴʑN݅෼ʹݻఆͰ͖Δ - σʔλྔ͕༧ଌ͠΍͍͢ - ௨஌͕୹࣌ؒʹେྔʹૹΒΕΔͱ  Ϣʔβଆ͕ݟΕͳ͘ͳΔͱ͍͏໰୊͸͋Δ ԿΛҎͬͯͯ͠อ࣋Λଧͪ੾Δ͔

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- ࣌ؒܦաΛج४ͱ͢Δ - ௨஌͕୹࣌ؒʹେྔʹૹΒΕͯ΋Ұఆ͕࣌ؒ ܦա͢Δ·Ͱ͸ഁغ͞Εͳ͍ͷͰಡΊΔ - ϢʔβʹΑΓσʔλͷ࠷େྔ͕ҟͳΔͷͰ  ༧ଌ͠ʹ͍͘ - ͢͞·͍͡਺Λfollow͢ΔϢʔβͱ͔ - ͍ΔΜͰ͢ΑͶ ԿΛҎͬͯͯ͠อ࣋Λଧͪ੾Δ͔

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- େྔʹ௨஌͕ཷ·͍ͬͯΔ࣌ɼ  Ռͨͯ͠Ϣʔβ͸ಡΉͷ͔Ͳ͏͔ - ͍͍ͤͥNݸ͋Ε͹ྑ͍ΑͶɼ  Έ͍ͨͳ৔߹͕ଟ͍ؾ͕͢Δ - ͱ͸͍͑͜ͷ΁Μ͸αʔϏεͷಛੑʹΑΔ - τϨʔυΦϑ ԿΛҎͬͯͯ͠อ࣋Λଧͪ੾Δ͔

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࢓༷ϨϕϧͰ ͋Δఔ౓ݱ࣮తʹ͢Δ - ࢓༷Ͱ͋Δఔ౓ແཧͳػೳΛ஄͘ - ແݶʹϖʔδωʔγϣϯ͍ͨ͠ͱ͔ - ฒͼॱΛϢʔβ͝ͱʹࣗ༝ʹઃఆ͍ͨ͠ͱ͔ - ະདྷӬ߷ফ͑ͳ͍ͱ͔ - (͔͠͠αʔϏεͷಛੑʹΑΔ) - ΞϓϦ಺௨஌͸ۜͷ஄ؙͰ͸ͳ͍

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ͦΕ͸ͦ͏ͱ

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ϢʔβA͕ϢʔβBΛfollowͨ࣌͠ʹɼ ϢʔβBͷաڈͷ௨஌ΛͲ͏͢΂͖͔

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Ͳ͏͢΂͖͔ - ݟํͷ໰୊ - ͦΕ͸ʮ௨஌ʯͳͷ͔ʁ - ͦΕ͸ʮλΠϜϥΠϯʯͳͷ͔ʁ

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Ͳ͏͢΂͖͔ - ʮ௨஌ʯͷ৔߹ - ೖΕΔඞཁͳ͠ - ௨஌͸ͦͷλΠϛϯά͋Γ͖Ͱ Ձ஋͕͋Δ৘ใ

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Ͳ͏͢΂͖͔ - ʮλΠϜϥΠϯʯͷ৔߹ - ೖΕΔඞཁ͋Δ - ͔͠͠ࠓճ͸ʮ௨஌ʯͷ࿩ - ͜Εݴ͍࢝ΊͨΒͳΜ͔צҧ͍Λ ͍ͯ͠ΔՄೳੑ͋Δ

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ݴͬͯΔ͜ͱ͸Θ͔Δ - ΞϓϦ಺ʹʮλϒʯͱͯ͠௨஌͕͋Δͱ  λΠϜϥΠϯͩͱࢥͬͪΌ͏ - Θ͔ΔΘ͔Δ - ͔͠͠ҧ͏ (ҧ͏ͱ͍͏৔߹͕ଟ͍) - ͜͜Β΁Μࠞಉ͢Δͱෆ޾͕΍͖ͬͯ·͢

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͸͍

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࢓༷ײ͕͋Δఔ౓ڞ༗ Ͱ͖ͨͱ͜ΖͰ໰୊Λ ݟͯΈ·͠ΐ͏

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͔͜͜Βઌ͸զʑ͕  Ͳ͏΍͔ͬͨͱ͍͏࿩ʹͳΓ·͢

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എܠ

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എܠ - Java 8ͰΞϓϦέʔγϣϯΛॻ͍͍ͯΔ - ͍ΘΏΔmicroservicesΈ͍ͨͳߏ੒ - ࢖͑ΔετϨʔδͷछྨ͸ෳ਺͋Δ - MySQL - Redis - Elasticsearch - Memcached - ͦͦ͜͜Ϣʔβ਺͕͋Δ

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ํ਑ - MailboxͰ΍Ζ͏ - ௚ײతͰ͋Δ - σʔλྔͷ༧ଌ͕͋Δఔ౓ͭ͘ - ͱΓ͋͑ͣ௨஌ݸ਺ϕʔεͰ΍Δ

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Ͳ͏΍Δ͔ - ʮ໰୊ʯͰॻ͍ͨΑ͏ʹɼ  RDBMS (SQL) Ͱ্ख͘΍Δํ๏Λ  ฤΈग़ͤͳ͔ͬͨ - ࠓʹͳͬͯͬ͘͡Γߟ͑ͯΈΔͱ  ग़དྷͨؾ͕͢Δ (γϟʔσΟϯάͱ͔)

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Ͳ͏΍Δ͔ - ͔͠͠༰ࣻͳ͘కΊ੾Γ͸͍ۙͮ ͯ͘Δ (਎ʹ͕֮͑͋ΔͰ͠ΐ͏) - Α͠ɼ͜͜͸ҰஸRedisͰ΍Ζ͏

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Redis

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Redis - આ໌ུ - LIST΍ΒZSET΍Βɼ  ௨஌ʹ޲͍͍ͯͦ͏ͳσʔλߏ଄͕  αϙʔτ͞Ε͍ͯͯศར

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Redis Cluster - Version 3͔Βఏڙ͞Ε͍ͯΔ ClusteringػೳΛར༻͍ͯ͠Δ - TODO: ͜͜ͰRedis ClusterΛ  ๙Ίশ͑Δ

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Ͳͷσʔλߏ଄Λ  ࠾༻͢Δ͔

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Ͳͷσʔλߏ଄Λ࠾༻͢Δ͔ - LIST - γϯϓϧ - LPUSH/RPOPΛ૊Έ߹ΘͤΔͱ  ؆୯ʹQueueͷΑ͏ͳߏ଄Λ࣮ݱ Ͱ͖Δ

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Ͳͷσʔλߏ଄Λ࠾༻͢Δ͔ - ZSET - ιʔτࡁΈηοτ - Α͘ϥϯΩϯάͷ࣮૷ͱ͔ʹ࢖ΘΕΔ΍ͭ - TimestampΛscoreʹͯ͠ɼͦΕΛ ZREVRANGE ͱ͔ͰҾ͍ͯ͘Δͱ࠷৽ॱͰऔͬͯ͜ΕΔ - ॱҐ΍είΞϕʔεͰ੾Γ٧Ί΋Ͱ͖ΔͷͰศར

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ͲΕʹͨ͠ͷ͔

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Ͳͷσʔλߏ଄Λ࠾༻͢Δ͔ ZSETʹͨ͠

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ZSETʹͨ͠ - Timestamp ͷ߱ॱͰදࣔ͞ΕΔͷͰɼ ΋͠΋Կ͔͋ͬͨ࣌ʹλΠϜελϯϓ Λج४ͱͯ͠௨஌ίϯςϯπͷௐ੔  ͕ޮ͘

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ZSETʹͨ͠ - ͨͱ͑͹ʢࢄʑ൱ఆͯͨ͠Μ͚ͩͲʣ ৗʹઌ಄ʹද͍ࣔͨ͠ɼΈ͍ͨͳͷ͕ དྷͨ࣌ʹ΋ରԠ͕ग़དྷΔ  (ແݶʹେ͖͍஋Λ score ʹͯ͠΍Δͱ ࣮ݱ͕Ͱ͖Δ)

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ZSETʹͨ͠ - ͨͱ͑͹ʢࢄʑ൱ఆͯͨ͠Μ͚ͩͲʣ ৗʹઌ಄ʹද͍ࣔͨ͠ɼΈ͍ͨͳͷ͕ དྷͨ࣌ʹ΋ରԠ͕ग़དྷΔ  (ແݶʹେ͖͍஋Λ score ʹͯ͠΍Δͱ ࣮ݱ͕Ͱ͖Δ) ੈͷதԿ͕ى͜Δ͔Θ͔Βͳ͍

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ZSETʹͨ͠ - ݸ਺ϕʔεͷmailboxʹ΋ɼ  ࣌ؒܦաϕʔεͷmailboxʹ΋  ରԠͰ͖Δ

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ZSETʹͨ͠ - ݸ਺ϕʔεͷmailboxʹ΋ɼ  ࣌ؒܦաϕʔεͷmailboxʹ΋  ରԠͰ͖Δ ੈͷதԿ͕ى͜Δ͔Θ͔Βͳ͍

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ZSETʹͨ͠ - ෭࡞༻͚ͩΕͲ - จݴ͕ಉ͔ͭ͡timestamp͕ҧ͏ͱ͍͏ΞΠςϜ ͕དྷͨ৔߹ɼ৽͘͠དྷͨ΋ͷ͕༏ઌ͞ΕΔ  => μϒΓ͕ͳ͘ͳΔ - ͜Ε͕ศརͳ৔߹ͱศརͰ͸ͳ͍৔߹͕  ͋Γͦ͏͕ͩࠓճ͸ศརͩͬͨ

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ະಡ؅ཧͲ͏͢Δ͔

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ະಡ؅ཧͲ͏͢Δ͔ - ଟ͘ͷΞϓϦ಺௨஌Ͱ͸  ະಡ؅ཧͷ࣮૷͕ཁٻ͞ΕΔ - Կ݅ཷ·ͬͯΔ͔ɼͱ͔ - ͲΕ͕৽ணͷ௨஌͔ɼͱ͔

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ະಡ؅ཧ - MailboxͱରԠ͢ΔΧ΢ϯλͷΤ ϯτϦΛredis಺ʹ࣋ͭΑ͏ʹͨ͠ - ৽͍͠௨஌͕དྷͨࡍʹZSETʹ  ௥Ճ͢Δͱಉ࣌ʹΧ΢ϯλΛINCR

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Add notification notification|{subscriberId} - Notification unreadCount|{subscriberId} - Unread count

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Add notification notification|{subscriberId} - Notification unreadCount|{subscriberId} - Unread count ZADD

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Add notification notification|{subscriberId} - Notification unreadCount|{subscriberId} - Unread count INCR

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Add notification notification|{subscriberId} - Notification unreadCount|{subscriberId} - Unread count INCR ZADD ಉ࣌ʹߦ͏ (ޙड़)

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ະಡ؅ཧ - ΫϥΠΞϯτ͔ΒϦΫΤετ͕͋ͬͨ࣌ ʹ௨஌ͱҰॹʹΧ΢ϯτΛฦͯ͠΍Δ - ΫϥΠΞϯτ͸ͦͷΧ΢ϯτΛ࢖ͬͯ ʮ͜Ε͕৽ணʯͱ͍͏ݟͤํ͕Ͱ͖Δ - ͦͷ࣌ʹΧ΢ϯλ͸ΫϦΞͯ͠΍Δ

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Client Get notiﬁcation

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Client Get notiﬁcation Return notiﬁcation and unread count

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Client Get notiﬁcation Return notiﬁcation and unread count SET unreadCount|{subscriberId} 0 ͱಉ࣌ʹ

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ະಡ؅ཧ - ৭ʑ࢖͍Ͱ͕͋ΔͷͰະಡΧ΢ϯ τ͚ͩΛฦ͢API΋ఏڙ͍ͯ͠Δ - શମతʹγϯϓϧ

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AtomicʹredisΛ  ૢ࡞͢Δ

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AtomicʹredisΛૢ࡞͢Δ - 1subscriber͋ͨΓͷ௨஌Λ࣮ݱ ͢Δʹ͋ͨͬͯredis಺ʹ2Τϯτ Ϧඞཁͱͳͬͨ - Atomicʹૢ࡞͢Δඞཁ͕ग़ͯ͘Δ

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Add notification notification|{subscriberId} - Notification unreadCount|{subscriberId} - Unread count INCR ZADD ಉ࣌ʹߦ͏

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AtomicʹredisΛૢ࡞͢Δ - Redis TransactionΛ࢖͏ - MULTI-EXECΛ࢖͏ํ๏ - ͋·ΓΦεεϝͰ͖ͳ͍ - Redis Scriptingͷํ͕ߴ଎ - ͍ͣΕػೳ͔Βআڈ͢Δ͔΋ͬͯݴͬͯΔ

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AtomicʹredisΛૢ࡞͢Δ - Redis ScriptingΛ࢖͏ - LuaʹΑΔscriptingΛ࢖͏ํ๏ - Redis TransactionΑΓߴ଎ - 1Script಺ͷૢ࡞͸atomicʹߦΘΕΔ - ཁ͸ྑ͍ετΞυΈ͍ͨͳ΍ͭͰ͢

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Redis Scripting - EVALίϚϯυ͸LuaεΫϦϓτΛ  ຖճredis serverʹૹ৴͢Δ - EVALίϚϯυͰLuaεΫϦϓτΛ࣮ߦ ͢ΔͱͦͷεΫϦϓτ͕SHA1ͷKeyʹ ͳͬͯredis server಺ʹ֨ೲ͞ΕΔ

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Redis Scripting - Ұ౓SHA1͕ొ࿥͞Εͯ͠·͑͹ɼ  Ҏ߱͸ͦͷSHA1ΛEVALSHAίϚϯυ Ͱ౉͢Α͏ʹ͢Δͱಈ࡞͢Δ - ଳҬΛઅ໿Ͱ͖Δʂ

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EVAL foo

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EVAL foo Register sha1(foo) {sha1(foo) => foo}

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EVAL foo Register sha1(foo) Execute foo {sha1(foo) => foo}

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EVAL foo Register sha1(foo) Execute foo (Result of foo) {sha1(foo) => foo}

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Remembering sha1(foo) {sha1(foo) => foo}

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EVALSHA sha1(foo) Remembering sha1(foo) {sha1(foo) => foo}

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EVALSHA sha1(foo) Remembering sha1(foo) {sha1(foo) => foo} Execute foo

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EVALSHA sha1(foo) Remembering sha1(foo) {sha1(foo) => foo} Execute foo (Result of foo)

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Redis Scripting - ͍͍ͪͪͦ͏͍͏ॲཧΛॻ͘ͷ΋໘౗ ͍͘͞ͷͰwrapperΛॻ͍ͨ - https://github.com/moznion/redis- script-manager-core - த਎͸@shogo82148͞Μͷ  p5-Redis-ScriptͷҠ২

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Redis Scripting - ϒϩάʹॻ͍͓͍ͯͨ - http://moznion.hatenadiary.com/entry/ 2016/05/10/214648

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શମ૾ͱͯ͠  Ͳ͏ͳ͍ͬͯΔͷ͔

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Redis (JobQueue) Redis Cluster Worker Business Domain

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؆୯ͳྲྀΕ (഑ૹฤ) 1. ϏδωευϝΠϯ͕JobQueueʹ௨஌ͷ ͨΊͷpayloadΛͭΊΔ 2. Worker͕payloadΛऔͬͯ͘Δ 3. Worker͕ରԠ͢Δsubscriberʹ௨஌Λඈ ͹͢

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i. Enqueue a job to deliver notiﬁcation ii. Pickup a job iii. Deliver notiﬁcation Redis (JobQueue) Redis Cluster Worker Business Domain

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؆୯ͳྲྀΕ (഑ૹฤ) 1. ϏδωευϝΠϯ͕JobQueueʹ௨஌ͷ ͨΊͷpayloadΛͭΊΔ 2. Worker͕payloadΛऔͬͯ͘Δ 3. Worker͕ରԠ͢Δsubscriberʹ௨஌Λඈ ͹͢

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i. Enqueue a job to deliver notiﬁcation ii. Pickup a job iii. Deliver notiﬁcation Redis (JobQueue) Redis Cluster Worker Business Domain

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JobQueueʹPayloadΛͭΊΔ - NotiﬁcationDeliverer Interface - deliver(String json) ͱ͍͏  ந৅methodΛ࣋ͬͨInterface

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JobQueueʹPayloadΛͭΊΔ - NotiﬁcationDeliverer#deliver(String json) - ୭ʹૹΔ͔ (Ͳͷredis entryʹ഑ૹ͢Δ͔) - Push௨஌͕ඞཁ͔Ͳ͏͔ - Λҙ࣮ࣝͭͭ͠૷͢Δ

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JobQueueʹPayloadΛͭΊΔ - ೚ҙͷNotiﬁcationDelivererͷ࣮૷ͷclass name  (ForAllUserDeliverer.classΈ͍ͨͳ) - Delivererͷ࣮૷΁ͷarguments - MessageΛද͢JSON String (ޙड़) - ΛPayloadͱͯ͠JobQueueʹͭΊΔ

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؆୯ͳྲྀΕ (഑ૹฤ) 1. ϏδωευϝΠϯ͕JobQueueʹ௨஌ͷ ͨΊͷpayloadΛͭΊΔ 2. Worker͕payloadΛऔͬͯ͘Δ 3. Worker͕ରԠ͢Δsubscriberʹ௨஌Λඈ ͹͢

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i. Enqueue a job to deliver notiﬁcation ii. Pickup a job iii. Deliver notiﬁcation Redis (JobQueue) Redis Cluster Worker Business Domain

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Worker͕payloadΛऔͬͯ͘Δ - ରԠ͢ΔWorker͕JobQueue͔Β payloadΛऔͬͯ͘Δ - Ҏ্

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؆୯ͳྲྀΕ (഑ૹฤ) 1. ϏδωευϝΠϯ͕JobQueueʹ௨஌ͷ ͨΊͷpayloadΛͭΊΔ 2. Worker͕payloadΛऔͬͯ͘Δ 3. Worker͕ରԠ͢Δsubscriberʹ௨஌Λඈ ͹͢

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i. Enqueue a job to deliver notiﬁcation ii. Pickup a job iii. Deliver notiﬁcation Redis (JobQueue) Redis Cluster Worker Business Domain

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௨஌Λඈ͹͢ - Worker͸औ͖ͬͯͨpayload͔Β ʮNotiﬁcationDelivererͷ࣮૷ͷ class nameʯΛऔΓग़͠ɼ reﬂectionΛ࢖ͬͯinstantiate͢Δ

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௨஌Λඈ͹͢ - ͦͷΠϯελϯεͷ  deliver(String json)Λpayload಺ʹ  ؚ·Ε͍ͯͨJSONΛ࢖ͬͯݺͼग़͢ - ࣮૷ʹج͍ͯ௨஌͕ඈͿ

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௨஌Λඈ͹͢ - ௨஌͕ඈͿͱݴͬͯ΋࣮ࡍʹ͸subscriberͷ mailbox (ZSET) ʹ௥Ճ͞ΕΔ͚ͩ - Score͸λΠϜελϯϓ - Valueʹ͸deliver() ʹ౉͖ͬͯͨJSON͕ͦͷ·· ೖΔ - ͦͷ࣌௨஌ݸ਺͕ଟ͚Ε͹ݹ͍΋ͷΛ௥͍ग़͢

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ValueͷJSONʹ͸Կ͕  ೖ͍ͬͯΔͷ͔

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JSONʹ͸Կ͕ʁ - NotiﬁcationMessageFactoryΛ࣮ ૷ͨ͠classͷclass name - ϓϨʔεϗϧμ಺ʹೖΔΞΠς ϜͷJSON

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JSONʹ͸Կ͕ʁ - NotiﬁcationMessageFactory - String makeNotiﬁcationMessage(  T bind,  Language lang  ) - ͱ͍͏ந৅methodΛ࣋ͭInterface

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JSONʹ͸Կ͕ʁ - makeNotiﬁcationMessage() - ௨஌ϝοηʔδΛ૊ΈཱͯΔ - Payload͔Βऔ͖ͬͯͨJSONΛ σγϦΞϥΠζͨ͠΋ͷΛ࢖͏ - ଟݴޠԽ΋͜͜Ͱٵऩ

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ྫ

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JSONʹ͸Կ͕ʁ - αʔόαΠυͰ௨஌จݴΛ૊ΈཱͯΔ ͱ͍͏લఏ (ޙड़) - ੜϝοηʔδ͕ೖͬͯΔͱi18n͕΍Γ ʹ͍͘ - ͷͰ͜͏͍͏ߏ੒ʹ

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؆୯ͳྲྀΕ (औಘฤ) 1. ௨஌ΛҾ͍ͯ͘Δ 2. Ҿ͍͖ͨͨ௨஌શ෦ʹରͯ͠  ϝοηʔδΛ૊ΈཱͯΔ

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o. Get Redis (JobQueue) Redis Cluster Worker Business Domain i. Retrieve notiﬁcation ii. Construct notiﬁcation messages iii. Return

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؆୯ͳྲྀΕ (औಘฤ) 1. ௨஌ΛҾ͍ͯ͘Δ 2. Ҿ͍͖ͨͨ௨஌શ෦ʹରͯ͠  ϝοηʔδΛ૊ΈཱͯΔ

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o. Get Redis (JobQueue) Redis Cluster Worker Business Domain i. Retrieve notiﬁcation ii. Construct notiﬁcation messages iii. Return

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௨஌ΛҾ͍ͯ͘Δ - ର৅ͱͳΔsubscriberͷmailbox (ZSET) ͔Β௨஌ΛҾ͍ͯ͘Δ - ZREVRANGEίϚϯυ

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؆୯ͳྲྀΕ (औಘฤ) 1. ௨஌ΛҾ͍ͯ͘Δ 2. Ҿ͍͖ͨͨ௨஌શ෦ʹରͯ͠  ϝοηʔδΛ૊ΈཱͯΔ

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o. Get Redis (JobQueue) Redis Cluster Worker Business Domain i. Retrieve notiﬁcation ii. Construct notiﬁcation messages iii. Return

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ϝοηʔδΛ૊ΈཱͯΔ - Ҿ͍͖ͯͨ௨஌͸JSON String - ͔͜͜Βਓ͕ಡΊΔϝοηʔδΛ ૊ΈཱͯΔඞཁ͕͋Δ

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JSONʹ͸Կ͕ʁ - NotiﬁcationMessageFactoryΛ  ࣮૷ͨ͠classͷclass name - ϓϨʔεϗϧμ಺ʹೖΔΞΠς ϜͷJSON

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ϝοηʔδΛ૊ΈཱͯΔ - NotificationMessageFactoryΛ࣮૷ͨ͠classͷ class nameΛ࢖ͬͯreflectionͰinstantiate - makeNotificationMessage() ݺͿ - ΞΠςϜͷJSONΛ࢖ͬͯϓϨʔεϗϧμΛຒΊΔ - ୺຤ͷݴޠ৘ใʹج͖ͮ࠷దͳݴޠͰ૊ΈཱͯΔ

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LLͷྑ͍ͱ͜ΖΛ  आΓ͖࣮ͯͨ૷ͱ͍͏ײ͡

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- ͱ͸͍࣮͑ߦ࣌ྫ֎͕όϯόϯ ى͖Δͷ͸ࠔΔͷͰɼ  δΣωϦΫεͰറ͍ͬͯΔײ͡ - ΠϯϓοτͷνΣοΫΛݫ֨ʹ

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͔͠͠ReﬂectionͰinstantiate  ͢Δͱίετߴͦ͏ͩ͠ɼ  ͔͠΋ຖ౓ຖ౓΍Δͷμα͘ͳ͍ʁ

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FlyWeight - FlyWeightͰ΍Ε͹҆৺ - Ϋϥεࣗମ͸ΠϛϡʔλϒϧͳͷͰ ࢖͍ճ͕͠ޮ͘ - ·͍ͨͭͰʹ sprint ͱ͍͏΋ͷ΋  ॻ͍ͨ  https://github.com/moznion/sprint

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ͱ͍͏ײ͡ ࣮ࡍʹͪΌΜͱಈ͍ͯΔʂ ΊͰͨ͠ΊͰͨ͠

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ͱ͸ͳΒͳ͍

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໰୊ - Ͳ͏ͯ͠΋Redisʹෛՙ͕ूத͠ ͯ͠·͏…… - ௨஌഑৴࣌ͷτϥϑΟοΫͷ޲্ - σʔλαΠζͷ্ঢ