Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
各レイヤーからのエラーについて考える
Search
yoshiyoshifujii
October 21, 2017
Programming
3
3.6k
各レイヤーからのエラーについて考える
関西Javaエンジニアの会(関ジャバ) '17 10月度
https://kanjava.connpass.com/event/68169/
yoshiyoshifujii
October 21, 2017
Tweet
Share
More Decks by yoshiyoshifujii
See All by yoshiyoshifujii
技術的負債に立ち向かう、 ひとりから始めるチームづくり / From One to Team: Building Momentum Against Technical Debt
yoshiyoshifujii
1
190
DMMを支える決済基盤の技術的負債にどう立ち向かうか / Addressing Technical Debt in Payment Infrastructure
yoshiyoshifujii
5
860
技術的負債と戦略的に戦わざるを得ない場合のオブザーバビリティ活用術 / Leveraging Observability When Strategically Dealing with Technical Debt
yoshiyoshifujii
1
250
プロダクトオーナーの視座から見た信頼性とオブザーバビリティ / Reliability and Observability from the Perspective of a Product Owner
yoshiyoshifujii
2
1.7k
プロダクトオーナーがFour Keys + 信頼性に思うところ / Product Owners Think of Four Keys + Reliability
yoshiyoshifujii
0
580
Recapping Chatwork Scala Journey - ScalaMatsuri2023
yoshiyoshifujii
0
2.9k
ここ数ヶ月でAkkaを勉強した方法について紹介 / I have studied Akka in the past few months
yoshiyoshifujii
1
300
コードをどまんなかに据えたモデリング-Scala版 / Modeling with code in the middle-Scala version
yoshiyoshifujii
0
140
Chatworkのドメインをモデリングした / Modeling Chatwork domain
yoshiyoshifujii
0
910
Other Decks in Programming
See All in Programming
Jakarta EE Core Profile and Helidon - Speed, Simplicity, and AI Integration
ivargrimstad
0
250
モバイルアプリからWebへの横展開を加速した話_Claude_Code_実践術.pdf
kazuyasakamoto
0
290
デザインシステムが必須の時代に
yosuke_furukawa
PRO
2
130
レガシープロジェクトで最大限AIの恩恵を受けられるようClaude Codeを利用する
tk1351
4
1.5k
『リコリス・リコイル』に学ぶ!! 〜キャリア戦略における計画的偶発性理論と変わる勇気の重要性〜
wanko_it
1
610
SOCI Index Manifest v2が出たので調べてみた / Introduction to SOCI Index Manifest v2
tkikuc
1
110
Claude Codeで実装以外の開発フロー、どこまで自動化できるか?失敗と成功
ndadayo
3
1.7k
Namespace and Its Future
tagomoris
6
660
Scale out your Claude Code ~自社専用Agentで10xする開発プロセス~
yukukotani
9
2.7k
Rancher と Terraform
fufuhu
1
140
LLMOpsのパフォーマンスを支える技術と現場で実践した改善
po3rin
8
990
Ruby Parser progress report 2025
yui_knk
1
230
Featured
See All Featured
Navigating Team Friction
lara
189
15k
Intergalactic Javascript Robots from Outer Space
tanoku
272
27k
Rails Girls Zürich Keynote
gr2m
95
14k
The Illustrated Children's Guide to Kubernetes
chrisshort
48
50k
ReactJS: Keep Simple. Everything can be a component!
pedronauck
667
120k
How to Think Like a Performance Engineer
csswizardry
26
1.8k
jQuery: Nuts, Bolts and Bling
dougneiner
64
7.9k
CSS Pre-Processors: Stylus, Less & Sass
bermonpainter
358
30k
Building Better People: How to give real-time feedback that sticks.
wjessup
368
19k
KATA
mclloyd
32
14k
CoffeeScript is Beautiful & I Never Want to Write Plain JavaScript Again
sstephenson
161
15k
Facilitating Awesome Meetings
lara
55
6.5k
Transcript
֤ϨΠϠʔ͔Βͷ Τϥʔʹ͍ͭͯߟ͑Δ 4BU !ZPTIJZPTIJGVKJJ
͜Μʹͪ w:PTIJUBLB'VKJJ !ZPTIJZPTIJGVKJJ w4PGUXBSF&OHJOFFS w4DBMB+BWB1ZUIPO 5ZQFTDSJQU w4DBMBؔ4VNNJU4UB⒎
ձεϙϯαʔͬͯ·͢
ି͠ग़͠Ͱ͖Δ෦ w ηϛφʔϗʔϧ ໊ w ձٞࣨ ໊͔Β໊ w
ΧϑΣεϖʔε ໊ w ϏΞόογϡͳͲͷ࠙ձ։࠵ՄೳͰ͢ʂ
ࠓͷ͓ͷલఏ w3&45"1*ͷαʔόαΠυ ը໘ؚΈ·ͤΜ w4DBMB w࣮ફͯ͠Έͨ݁ՌΛཧ w.BZFSຊಡΜͰ·ͤΜ
Τϥʔͷྨ wϢʔβʔͷૢ࡞ΛىҼͱ͢ΔΤϥʔ wγεςϜͷোΛىҼͱ͢ΔΤϥʔ
Ϣʔβʔͷૢ࡞ΛىҼͱ͢Δ wܖʹҧ͢ΔΑ͏ͳૢ࡞ wඞਢɺ͞ɺܕɺॏෳͳͲ wجຊతʹը໘ଆͰ֬ೝ͢Δ wࠓճɺ"1*Λݺͼग़͢͜ͱΛఆ wෆਖ਼ΞΫηε
γεςϜͷোΛىҼͱ͢Δ w*0ྫ֎ w/FUXPSLɺ4ZTUFN%PXO wόά w͵ΔΆ
)551εςʔλείʔυ wϢʔβʔͷૢ࡞൪ wγεςϜͷো൪
υϝΠϯۦಈઃܭ
-BZFSFE"SDIJUFDUVSF w6TFS*OUFSGBDF w"QQMJDBUJPO w%PNBJO w*OGSBTUSVDUVSF &WBOT &SJD%PNBJO%SJWFO%FTJHO5BDLMJOH$PNQMFYJUZJOUIF)FBSUPG4PGUXBSF ,JOEMFͷҐஔ/P 1FBSTPO&EVDBUJPO,JOEMF൛
ࡾ υϝΠϯϞσϧ wϓϨθϯςʔγϣϯ wΞϓϦέʔγϣϯ wσʔλιʔε wυϝΠϯϞσϧ ૿ాږݱͰཱͭγεςϜઃܭͷݪଇʙมߋΛָͰ҆શʹ͢ΔΦϒδΣΫτࢦͷ࣮ફٕ๏ ,JOEMFͷҐஔ/P גࣜձٕࣾज़ධࣾ,JOEMF൛
ΦχΦϯΞʔΩςΫνϟ wΠϯλʔϑΣʔε wΞϓϦέʔγϣϯ wυϝΠϯ wΠϯϑϥετϥΫνϟ IUUQTTQFBLFSEFDLDPNDSPTTSPBETDBMBPOEEE TMJEF
ΠϯϑϥετϥΫνϟ Πϯϑϥ αʔϏε υϝΠϯ ϨΠϠʔͰѻ͏Τϥʔ ΠϯλʔϑΣʔε ΞϓϦέʔγϣϯ ϑΝΫτϦ ΤϯςΟςΟ υϝΠϯ
αʔϏε ϦϙδτϦ ΠϕϯτύϒϦ ογϟ ϦϙδτϦ࣮ Πϕϯτ ύϒϦογϟ࣮ +BWBϥΠϒϥϦ +%#$υϥΠό ྫ֎ ϦϙδτϦ Τϥʔ ΞϓϦέʔγ ϣϯΤϥʔ υϝΠϯ Τϥʔ ࢀߟIUUQTTQFBLFSEFDLDPNDSPTTSPBETDBMBPOEEE TMJEF 5SZ\ʜ^Ͱғͬͯྫ֎Λ 5SZܕʹม 5SZ
υϝΠϯ
υϝΠϯͷΤϥʔ wܖҧ wඞਢ wܕνΣοΫ w͞ɺ͔͞ wॏෳ w%PNBJO&SSPSܕ
ϦϙδτϦυϝΠϯͱಉ͡ wυϝΠϯʹϦϙδτϦΛఆٛ͢Δ wυϝΠϯͷΤϥʔܕͱಉ͡ʹ͢Δ͔
ϦϙδτϦͷΛߟ͑Δ wυϝΠϯͷӬଓԽ w࠶ੜ w*0ྫ֎ΛΑ͘ѻ͍ͦ͏
ϦϙδτϦͰҙ֎ͱߟྀ͖͢͜ͱ wָ؍ഉଞ 0QUJNJTUJD-PDLJOH w/PU'PVOE 0QUJPOPS'BJMVSF w͜ΕΒΛܕͰද໌ͨ͘͠ͳΔ
ϑΝΫτϦυϝΠϯͱಉ͡ wϑΝΫτϦυϝΠϯΛੜ͢Δ wυϝΠϯͷੜ࣌ʹܖҧΛ֬ೝ͢ Δ wυϝΠϯͷΤϥʔͱಉ͡Ͱྑ͍
ΠϕϯτύϒϦογϟ wυϝΠϯΠϕϯτͷύϒϦογϡ wܖҧͷݕূऴΘͬͨঢ়ଶ w*0ྫ֎ͷΈΛߟྀͰྑ͍
υϝΠϯαʔϏε wυϝΠϯͷϏδωεϧʔϧΛѻ͏ wܖҧΛѻ͏ wϦϙδτϦѻΘͳ͍
υϝΠϯͷΤϥʔܕ w%PNBJO&SSPSܕ w3FQPTJUPSZ&SSPSܕ wྫ֎ TDBMBVUJM5SZ
Πϯϑϥ ετϥΫνϟ
ΠϯϑϥετϥΫνϟ Πϯϑϥ αʔϏε υϝΠϯ ϨΠϠʔͰѻ͏Τϥʔ ΠϯλʔϑΣʔε ΞϓϦέʔγϣϯ ϑΝΫτϦ ΤϯςΟςΟ υϝΠϯ
αʔϏε ϦϙδτϦ ΠϕϯτύϒϦ ογϟ ϦϙδτϦ࣮ Πϕϯτ ύϒϦογϟ࣮ +BWBϥΠϒϥϦ +%#$υϥΠό ྫ֎ ϦϙδτϦ Τϥʔ ΞϓϦέʔγ ϣϯΤϥʔ υϝΠϯ Τϥʔ ࢀߟIUUQTTQFBLFSEFDLDPNDSPTTSPBETDBMBPOEEE TMJEF 5SZ\ʜ^Ͱғͬͯྫ֎Λ 5SZܕʹม 5SZ
ϦϙδτϦ࣮ wυϝΠϯͷఆٛʹै͏ w3%#ɺ,74ɺ"84 ,JOFTJTɺ424ɺ4 w+BWB-JCSBSZ wྫ֎ΛUSZDBUDIͯ͠$POWFSU w-JCSBSZͷґଘܕด͡ࠐΊΔ
ΠϕϯτύϒϦογϟ࣮ wྫ֎Λͦͷ··ѻ͏ wಛผʹܕΛఆٛͯ͠ѻΘͳ͍
ΠϯϑϥετϥΫνϟαʔϏε wυϝΠϯͰදݱ͢Δඞཁͷͳ͍Πϯϑϥ ૢ࡞ wϑΝΠϧΞοϓϩʔυΛςϯϙϥϦʔʹ Ұ࣌อଘ w҉߸Խ෮߸
ΠϯϑϥετϥΫνϟͷΤϥʔܕ w3FQPTJUPSZ&SSPSܕ wྫ֎
ΞϓϦέʔγϣϯ
ΠϯϑϥετϥΫνϟ Πϯϑϥ αʔϏε υϝΠϯ ϨΠϠʔͰѻ͏Τϥʔ ΠϯλʔϑΣʔε ΞϓϦέʔγϣϯ ϑΝΫτϦ ΤϯςΟςΟ υϝΠϯ
αʔϏε ϦϙδτϦ ΠϕϯτύϒϦ ογϟ ϦϙδτϦ࣮ Πϕϯτ ύϒϦογϟ࣮ +BWBϥΠϒϥϦ +%#$υϥΠό ྫ֎ ϦϙδτϦ Τϥʔ ΞϓϦέʔγ ϣϯΤϥʔ υϝΠϯ Τϥʔ ࢀߟIUUQTTQFBLFSEFDLDPNDSPTTSPBETDBMBPOEEE TMJEF 5SZ\ʜ^Ͱғͬͯྫ֎Λ 5SZܕʹม 5SZ
ΞϓϦέʔγϣϯαʔϏε wϢʔεέʔεهड़Λॻ͘Α͏ʹ wϢʔεέʔεͱͯ͠ΤϥʔΛද໌͢Δ w%PNBJO&SSPS 3FQPTJUPSZ&SSPS ྫ֎ Λ$POWFSU
ΞϓϦέʔγϣϯΤϥʔ wϢʔεέʔεͱͯ͠ͷ Τϥʔද໌ w/PU'PVOE w#BE3FRVFTU w4ZTUFN&SSPS
$POWFSUΛཧ w%PNBJO&SSPS"QQMJDBUJPO&SSPS w3FQPTJUPSZ&SSPS"QQMJDBUJPO&SSPS wྫ֎"QQMJDBUJPO&SSPS
$POWFSUΛཧ wΤϥʔܕΛද໌ͨ͜͠ͱͰ$POWFSU͕ େม wશͯ"QQMJDBUJPO&SSPSʹ͢Δ w$POWFSUΛ͏·࣮͘͠ͳ͍ͱਏ͍
object ApplicationErrorConverters { implicit class DomainError2ApplicationError[E](val e: Either[DomainError, E]) extends
AnyVal { def toApplicationError: Either[ApplicationError, E] = e.fold( l => Left(BadRequestError(Option(l.message))), Right(_) ) } }
object ApplicationErrorConverters { implicit class RepositoryError2ApplicationError[E](val e: Either[RepositoryError, E]) extends
AnyVal { def toApplicationError: Either[ApplicationError, E] = e.fold( { case _: RepositoryOptimisticError => Left(ConflictError) case _: RepositoryNotFoundError => Left(NoContentsError) case _: RepositoryAlreadyExistsError => Left(BadRequestError(Some("already_exists"))) case RepositorySystemError(t) => Left(InternalServerError(t)) }, Right(_) ) } }
object ApplicationErrorConverters { implicit class Try2ApplicationError[E](val e: Try[E]) extends AnyVal
{ def toApplicationError: Either[ApplicationError, E] = e.fold( e => Left(InternalServerError(e)), Right(_) ) } }
ΠϯλʔϑΣʔε
ΠϯϑϥετϥΫνϟ Πϯϑϥ αʔϏε υϝΠϯ ϨΠϠʔͰѻ͏Τϥʔ ΠϯλʔϑΣʔε ΞϓϦέʔγϣϯ ϑΝΫτϦ ΤϯςΟςΟ υϝΠϯ
αʔϏε ϦϙδτϦ ΠϕϯτύϒϦ ογϟ ϦϙδτϦ࣮ Πϕϯτ ύϒϦογϟ࣮ +BWBϥΠϒϥϦ +%#$υϥΠό ྫ֎ ϦϙδτϦ Τϥʔ ΞϓϦέʔγ ϣϯΤϥʔ υϝΠϯ Τϥʔ ࢀߟIUUQTTQFBLFSEFDLDPNDSPTTSPBETDBMBPOEEE TMJEF 5SZ\ʜ^Ͱғͬͯྫ֎Λ 5SZܕʹม 5SZ
"QQMJDBUJPO&SSPSΛ$POWFSU w)551εςʔλεʹม w/PU'PVOE w#BE3FRVFTU w*OUFSOBM4FSWFS&SSPS
)551Ҏ֎ͷΠϯλϑΣʔε w4VCTDSJCFS w3FDJFWFS w$PNNBOE-JOF*OUFSGBDF
4VCTDSJCFS w/PU'PVOE4LJQ w#BE3FRVFTU4LJQ w*OUFSOBM4FSWFS&SSPS3FUSZ
ΠϯλϑΣʔεʹґଘ͢Δ wΠϯλϑΣʔε͕)551ͳΒ)551ʹ w4VC3FDJFWFSͳΒ4LJQ͔3FUSZ wӬԕʹղফ͞Εͳ͍3FUSZΛ࡞ͬͯॲ ཧΛԆͤ͞ͳ͍Α͏அ͕ཁΔ
'JO