Introduction of Jooby. DevIO2016

%FWFMPQFST*0 " খࣨܒ ϞόΠϧΞϓϦαʔϏε෦ DMBTTNFUIPEJOD ⡥$MBTTNFUIPE *OD ೥݄೔ /FX/FYU8FC"QQMJDBUJPO 'SBNFXPSL
ʮ+PPCZʯ

⡥$MBTTNFUIPE *OD ࣗݾ঺հ w খࣨܒ w ϞόΠϧΞϓϦαʔϏε෦όοΫΤϯυάϧʔϓ w ։ൃऀ 1-
ࡳຈΦϑΟεϚωʔδϟ w ࡛ۄݝग़਎࡛ۄҭͪ  Կނ͔ࠓ͸๺ւಓࡳຈࢢࡏॅ w ϞόΠϧΞϓϦ(ͷ஍ํΦϑΟε্ཱͪ͛෦ୂʢࣗশ w 5XJUUFS!DPNED

+BWB 1ZUIPO "OESPJE "84 6OSFBM &OHJOF 4QSJOH ,PUMJO

+BWB 4QSJOH#PPU ࢭΉʹࢭ·Εͣ࣌ʑ1MBZGPS4DBMB

๺ւಓࡳຈࢢ͔Βདྷ·ͨ͠ɻ

๺ւಓͱ͍͑͹ɾɾɾ

Ն͸ྋͯ͘͠ͱͯ΋շదͰ ͢ɻ ౙ͸നͯ͘ ۃΊͯ פ͍Ͱ͢ ʢͨͩ͠෦԰ͷத͸ॵ͍ʣ

,"/8",:6%"*

⡥$MBTTNFUIPE *OD N @@ N w ͜ͷࢿྉ͸ɺ+PPCZ$3Λର৅ʹॻ͍ͯ͋Γ ·͢ w +PPCZͷϦϦʔε଎౓͕ૣ͍ͨΊɺॻ͍ͯΔ్தͰόʔ
δϣϯ্͕͕Γ·ͨ͠ w ݱࡏ$3͕ϦϦʔεࡁΈ

+PPCZͲ͏Ͱ͠ΐ͏

⡥$MBTTNFUIPE *OD ͸͡Ίʹ w 8FCΞϓϦέʔγϣϯ։ൃͷϑϨʔϜϫʔΫʹඞཁ ͳཁૉͱ͸ͲΜͳ΋ͷͰ͠ΐ͏͔ʁ %* 8FC4FSWFS 4DBMBCJMJUZ
.PEVMF "TTFUT ๛෋ͳ֎෦ϥΠϒϥϦ

⡥$MBTTNFUIPE *OD ஶ໊ͳ8FCΞϓϦ։ൃϑϨʔϜϫʔΫ

KPPCZͱ͸ w ࡞ऀ͸&EHBS&TQJOB !KLOBDL ͞Μ w +BWBωΠςΟϒ w .JDSP8FCΞϓϦέʔγϣϯ։ൃͷϑϨʔϜϫʔΫ
w ར༻ՄೳͳϞδϡʔϧ͕ެࣜͰ݁ߏ༻ҙ͞ΕͯΔ w طଘͷ+BWBϥΠϒϥϦΛ࢖͍·ΘͤΔ w εςʔτϨεͳͷͰεέʔϧ͠΍͍͢ w /FUUZ +FUUZ VOEFSUPX ਖ਼֬ͳൃԻ͸ෆ໌ɾɾ

⡥$MBTTNFUIPE *OD 8FC'SBNFXPSL#FODINBSL IUUQTXXXUFDIFNQPXFSDPNCFODINBSLT TFDUJPOEBUBSIXQFBLUFTUKTPO

,JMMFSGFBUVSF w+BWB/BUJWF w4DBMBCMF wNPEVMBS wNVMUJMBOHVBHF +BWB +BWBTDSJQU wNJDSPXFCGSBNFXPSL

+BWB/BUJWF

⡥$MBTTNFUIPE *OD +BWB/BUJWF w ಈ࡞࠷௿৚͕݅+BWBҎ্ w +BWBҎ্ NBWFOYҎ্ w ϥϜμࣜΛ࢖ͬͨهड़͕ެࣜͷελϯμʔυ
w ίϯύΫτʹॻ͚Δ w ܕਪ࿦ͱϥϜμࣜͷԸܙʹ༩Γ·͠ΐ͏ w +BWBҎ߱ͷ+7.͕ಈ࡞ج൫ w IUUQPUOEOMEPSBDMFDPKQPOEFNBOEKBWBEBZ QEG$+BWB%BZQEG

⡥$MBTTNFUIPE *OD 4DBMBCMF w εςʔτϨε w ෼ࢄ؀ڥʹͯεέʔϧͤ͞΍͍͢ w "84౳ͷ؀ڥ͕εέʔϧ͢Δ΋ͷͱ͸ɺ૬ੑ͕ྑ͍ ͸
ͣ w ະݕূ

⡥$MBTTNFUIPE *OD 'BTU w ىಈ͕ૣ͍ w σϑΥϧτͷαʔόʔ͸/FUUZ w IUUQOFUUZJP w
ͦͷଞαϙʔτ w +FUUZ IUUQXXXFDMJQTFPSHKFUUZ w VOEFSUPX IUUQVOEFSUPXJP w 5PNDBU͸ͳ͍ IUUQKPPCZPSHEPDTFSWFST

⡥$MBTTNFUIPE *OD ىಈ଎౓͕ૣ͍ͷ͸ਖ਼ٛ

⡥$MBTTNFUIPE *OD $PEF w ίʔυ͕εοΩϦ ίϯύΫτʹ public class App
extends Jooby { Logger log = LoggerFactory.getLogger(App.class); { get("/", request -> "Hello jooby"); } public static void main(final String[] args) throws Throwable { run(App::new, args); } } ͜Ε͚ͩ

⡥$MBTTNFUIPE *OD $PNQBSF @Controller public class SimpleController { @RequestMapping("/simple") public
@ResponseBody String simple() { return "Hello world!"; } } { get("/simple", () -> "Hello World!"); } 4QSJOH.7$ +PPCZ ͪΐͬͱ൓ଇؾຯɾɾʁ

⡥$MBTTNFUIPE *OD ಛ௃ w SPVUFT΋ίʔυͰॻ͘ w 4JOBUSB΍FYQSFTTKT͔ΒΠϯεύΠΞ w εΫϦϓτͬΆ͘ॻ͚ΔߏจΛ༻ҙ w
جຊ͸ϥϜμࣜ w 'VODUJPOབྷΈͷγϯλοΫεγϡΨʔʹΑͬͯɺѹ౗తʹه ड़ྔ͕গͳ͍ɻϥϜμࣜͱܕਪ࿦͸ڧྗɻ w ܕਪ࿦ʹΑΓهड़͕লུ͞ΕΔ͕ɺ*%&ͷྗʹཔΔͱಛʹࠔΒ ͳ͍ɻ w ΠϯελϯεΠχγϟϥΠβ w ίϯετϥΫλ಺Ͱهड़͢ΔΑΓݟ௨͕͠ྑ͍ ڧ੍Ͱ͸ͳ͍

⡥$MBTTNFUIPE *OD ڧྗͳػೳΛ঺հ wϞδϡʔϧͰػೳͷ֦ு wΠϯλʔηϓτͰϑΟϧλɺϩά wઃఆϑΝΠϧϨεʢඞཁ࠷খݶʣ

࡞੒ͨ͠ΞϓϦέʔγϣϯ NPEVMF NPEVMF NPEVMF NPEVMF .PEVMBS

⡥$MBTTNFUIPE *OD Ϟδϡʔϧͱ͸ʁ w +PPCZͷಛ௃ͷҰͭɻऔΓࠐΈɺऔΓ֎ָ͕͠ w +PPCZʹ͓͍ͯͷϞδϡʔϧͱ͸ɺ+PPCZʹ૊Έࠐ Ή͜ͱͷͰ͖Δίϯϙʔωϯτʢ࣮ࡍʹ͸ΠϯλϑΣʔ ε
w +PPCZ.PEVMFͱ͍͏ΠϯλϑΣʔεΛ࣮૷ɺϒ Ϧοδͯ͋͛͠Ε͹طଘͷϥΠϒϥϦΛऔΓࠐΉͷ͸ ͱͯ΋؆୯ w ͪΐͬͱ಄ͷྑ͍ϑΝΫτϦͷΑ͏ͳΠϝʔδ

⡥$MBTTNFUIPE *OD ϞδϡʔϧͷΠϝʔδ +PPCZ طଘͷϥΠϒϥϦ ͜ͷ··ͩͱऔΓࠐΊͳ͍ʂ

⡥$MBTTNFUIPE *OD ϞδϡʔϧͷΠϝʔδ +PPCZ +PPCZ.PEVMF طଘͷϥΠϒϥϦ +PPCZ.PEVMFΠϯλϑΣʔε Ͱϥοϓ͢Δ͚ͩͰ ؆୯ʹϞδϡʔϧԽ

⡥$MBTTNFUIPE *OD ϞδϡʔϧͷಡΈࠐΈ ΞϓϦέʔγϣϯ΁؆୯ʹ૊ΈࠐΊΔ public class App extends Jooby
{ { use(new MyModule()); } { get("/", req -> { MyService service = req.require(MyService.class); return service.doSomething(); }); } } ϞδϡʔϧΛϩʔυ ϞδϡʔϧͰϩʔυ͞ΕͨΫ ϥεΛΠϯελϯεԽ Ϟδϡʔϧ͕ϩʔυ͞Εͯͳ͍ ͱ/VMM1PJOUFS&YDFQUJPO ϞδϡʔϧͰ४උ͞Εͨ αʔϏεΫϥε

⡥$MBTTNFUIPE *OD .PEVMFΛ௥Ճ͢Δ ࡞੒ͨ͠ΞϓϦέʔγϣϯ "84.PEVMF -PHCBDL "844%,͕࢖ ͍͍ͨ

⡥$MBTTNFUIPE *OD .PEVMFͷ४උ <dependency> <groupId>org.jooby</groupId> <artifactId>jooby-aws</artifactId> <version>1.0.0.CR7</version> </dependency> QPNYNMʹґଘ௥Ճ
aws.accessKey = ACCCESSSSSSSSSKEYYYYYYYYYYYYYYYY aws.secretKey = seeeeeCreeeeeeetKeeeyyyyyyyyyyy BQQMJDBUJPODPOGʹઃఆ௥Ճ IUUQTHJUIVCDPNKPPCZQSPKFDUKPPCZUSFFNBTUFSKPPCZBXT

⡥$MBTTNFUIPE *OD "84.PEVMFΛϩʔυ public class App extends Jooby {
{ use(new Aws()  .with(creds -> new AmazonS3Client(creds))  ); } } Ϟδϡʔϧ௥Ճ "NB[PO4Λ࢖͏৔߹ public class App extends Jooby { { get("/", req -> { AmazonS3Client s3Client = req.require(AmazonS3Client.class); log.info("get s3Client. {}”, s3Client); return “AmazonS3Client"; }); } } ඞཁͳΠϯελϯεऔಘ

⡥$MBTTNFUIPE *OD "84.PEVMFͷதΛ೷͍ͯΈΔ private Builder<BiFunction<AWSCredentialsProvider, Config, AmazonWebServiceClient>> callbacks =
ImmutableList.builder(); public Aws with( final BiFunction<AWSCredentialsProvider, Config, AmazonWebServiceClient> callback) { requireNonNull(callback, "Callback is required."); callbacks.add(callback); return this; } public Aws with(final Function<AWSCredentialsProvider, AmazonWebServiceClient> callback) { return with((creds, conf) -> callback.apply(creds)); } "XTϞδϡʔϧ͸XJUIϝιουΛ࢖ͬͯ$BMMCBDLΛొ࿥ ͠·͢ɻSFUVSOUIJTͰࣗ਎Λฦ٫͍ͯ͠ΔͨΊCVJMEFS ͱͯ͠ར༻Ͱ͖·͢ɻ

⡥$MBTTNFUIPE *OD ॳظԽॲཧ @Override public void configure(final Env env,
final Config config, final Binder binder) { callbacks.build().forEach(it -> { ConfigCredentialsProvider creds = new ConfigCredentialsProvider(config); AmazonWebServiceClient service = it.apply(creds, config); creds.service(service.getServiceName()); Class serviceType = service.getClass(); Class[] interfaces = serviceType.getInterfaces(); if (interfaces.length > 0) { // pick first binder.bind(interfaces[0]).toInstance(service); } binder.bind(serviceType).toInstance(service); env.onStop(new AwsShutdownSupport(service)); after(env, binder, config, service); }); } DPOpHVSF͸.PEVMF͕ϩʔυ͞ΕͨࡍʹॳظԽॲཧΛ࣮ߦ͠·͢ɻ ඞཁͳ$MJFOUͷΫϥεΛDBMMCBDLT͔ΒऔΓग़͠ɺ$SFEFOUJBMͱڞʹॳ ظԽͭͭ͠ɺΫϥεʹରͯ͠ͷΠϯελϯεΛొ࿥͍͖ͯ͠·͢ɻ

⡥$MBTTNFUIPE *OD ϞδϡʔϧϥΠϑαΠΫϧ .PEVMF Πϯελϯεੜ੒ ΞϓϦέʔγϣϯ ॳظԽ ΞϓϦέʔγϣϯ ऴྃ
.PEVMF ऴྃ .PEVMFDPOpHVSF &OWPO4UBSU &OWPO4UPQ .PEVMFͰඞཁͳॳظઃఆͳͲ͸DPOpHVSFͰ࣮ߦɻ PO4UBSU PO4UPQͷఆٛ΋ͪ͜ΒͰߦ͓͚ͬͯ͹ྑ͍ɻ

⡥$MBTTNFUIPE *OD +BDLTPO.PEVMF ࡞੒ͨ͠ΞϓϦέʔγϣϯ "84.PEVMF -PHCBDL ϨεϙϯεΛ+40/ ʹ͍ͨ͠ +BDLTPO
.PEVMF

⡥$MBTTNFUIPE *OD .PEVMFͷ४උ <dependency> <groupId>org.jooby</groupId> <artifactId>jooby-jackson</artifactId> <version>1.0.0.CR7</version> </dependency> QPNYNMʹґଘ௥Ճ
IUUQTHJUIVCDPNKPPCZQSPKFDUKPPCZUSFFNBTUFSKPPCZKBDLTPO public class App extends Jooby { { use(new Jackson()); } } Ϟδϡʔϧ௥Ճ

⡥$MBTTNFUIPE *OD +BDLTPOϞδϡʔϧ௥Ճͷ#FGPSFͱ"GUFS IUUQTHJUIVCDPNKPPCZQSPKFDUKPPCZUSFFNBTUFSKPPCZKBDLTPO public class User { public
User(String name, boolean steamer) { this.name = name; this.steamer = steamer; } public String name; public boolean steamer; } get("/user/{name}", (req) -> { return new User(req.param("name").value(), true); }); Ϩεϙϯεʹ6TFSΛฦ٫͢Δ

⡥$MBTTNFUIPE *OD +BDLTPOϞδϡʔϧ௥Ճͷ#FGPSFͱ"GUFS jp.classmethod.User@d719ea9 #FGPSF IUUQTHJUIVCDPNKPPCZQSPKFDUKPPCZUSFFNBTUFSKPPCZKBDLTPO {"name":"komuro","steamer":true} "GUFS

⡥$MBTTNFUIPE *OD Ϟδϡʔϧಈ࡞·ͱΊ wΠϝʔδͱͯ͠͸ΠϯελϯεΛੜ੒ͯ͠ฦ٫͢Δ಄ ͷྑ͍ϑΝΫτϦʹΠϝʔδ͕͍ۙ wϞδϡʔϧʹ͸ϥΠϑαΠΫϧ͕͋Γɺϩʔυ࣌ʹϥ ΠϒϥϦͷॳظԽॲཧΛهड़͠ɺΞϓϦέʔγϣϯऴ ྃ࣌ʹഁغͷͨΊͷॲཧͳͲΛهड़Ͱ͖Δ wϞδϡʔϧͰར༻͢Δ͜ͱͷͰ͖Δࢦఆ͞ΕͨΫϥε ʹରͯ͠ͷ࣮૷ʢΠϯελϯεʣΛఆٛ͢Δ

⡥$MBTTNFUIPE *OD ͦͷଞ༻ҙ͞ΕͯΔϞδϡʔϧ w KPPCZBLLB w KPPCZBTTFUTMFTTK w KPPCZBTTFUTOPEFKT w
KPPCZDBTTBOESB w KPPCZDPVDICBTF w KPPCZFMBTUJDTFBSDI w KPPCZKBDLTPO w KPPCZNPOHPEC w KPPCZTXBHHFS IUUQTHJUIVCDPNKPPCZQSPKFDUKPPCZ

&SSPS)BOEMJOH

⡥$MBTTNFUIPE *OD ΤϥʔϋϯυϦϯάʹ͍ͭͯ +PPCZʹ͓͍ͯͷΤϥʔϋϯυϦϯά͸ҎԼͷछྨͰ ॲཧ͢Δ͜ͱ͕Ͱ͖·͢ɻ w)551εςʔλείʔυΛϋϯυϦϯά w&YDFQUJPOΫϥεΛϋϯυϦϯά wͦͷଞྫ֎ΛϋϯυϦϯά

⡥$MBTTNFUIPE *OD εςʔλείʔυ err(400, (req, rsp, ex) -> {
logger.error("Bad Request“, ex); rsp.send("Bad Request"); }); +PPCZ શͯͷύεʹରͯ͠ɺΤϥʔ͕ൃੜͨ͠৔߹ͷॲཧΛهड़͠·͢ɻ͜ͷ৔ ߹͸ɺจࣈྻΛϨεϙϯεͰฦ٫

⡥$MBTTNFUIPE *OD &YDFQUJPOΫϥε err(NullPointerException.class, (req, rsp, ex) -> {
Map<String, String> messageMap = new HashMap<>(); messageMap.put("reaction", "Ψο"); messageMap.put("cause", "͵ΔΆʂ"); logger.error(“null pointer exception”, ex); rsp.send(messageMap.get(“reaction")); // ΤϥʔΛฦ٫ }); +PPCZ શͯͷύεʹରͯ͠ɺ/VMM1PJUFS&YDFQUJPO͕ൃੜͨ͠৔߹ͷॲཧΛهड़͠· ͢ɻ

⡥$MBTTNFUIPE *OD ͦͷଞྫ֎ public class App extends Jooby {
{ err((req, rsp, ex) -> { logger.error("ex: {}", ex); rsp.send("other error"); }); } } +PPCZ 3PVUFTFSS &SS)BOEMFSFSS ͷγϯλοΫεγϡΨʔͰ͢ɻ IUUQKPPCZPSHBQJEPDTPSHKPPCZ3PVUFTIUNMFSS PSHKPPCZ&SS)BOEMFS Ҿ਺ʹ͍ͭͯ͸ɺΠϯλϑΣʔε&SS)BOEMFSͷIBOEMFϝιουͰ֬ೝͰ͖ ·͢ɻ IUUQKPPCZPSHBQJEPDTPSHKPPCZ&SS)BOEMFSIUNM

*OUFSDFQUPST

⡥$MBTTNFUIPE *OD *OUFSDFQUPST w+PPCZͰ͸ͭͷ*OUFSDFQUPS͕༻ҙ͞Ε͍ͯ·͢ɻ wSFRVFTUॲཧલʹ࣮ߦ͞ΕΔ#FGPSF wSFTQPOTFΛฦ٫͢Δલʹ࣮ߦ͞ΕΔ"GUFS wSFTQPOTFฦ٫ޙʹ࣮ߦ͞ΕΔ$PNQMFUF 3FRVFTU 4FSWJDF
#FGPSF 3FTQPOTF "GUFS $PNQMFUF 4QSJOHͰݴ͏)BOEMFS*OUFSDFQUPS "TQFDU+૬౰ʁ

⡥$MBTTNFUIPE *OD #FGPSF before("/simple", (req, rsp) -> { logger.info("Header
: {}", req.headers()); }); TJNQMFʹϦΫΤετ͢ΔͱॲཧલʹΠϯλʔηϓτ͠·͢ɻϦΫΤετͷό Ϧσʔγϣϯ΍ϑΟϧλʔ࣮૷ʹ༗ޮͰ͠ΐ͏͔ɻ $ curl http://localhost:8080/simple Hello World! [2016-10-06 17:51:23,524]-[netty task-3-4] INFO jp.classmethod.App - Header : {Host=[localhost:8080], Connection=[keep-alive], Cache-Control=[max-age=0], Upgrade-Insecure-Requests=[1], User-Agent=[Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.143 Safari/ 537.36], Accept=[text/html,application/xhtml+xml,application/xml;q=0.9,image/ webp,*/*;q=0.8], Accept-Encoding=[gzip, deflate, sdch], Accept-Language=[ja,en- US;q=0.8,en;q=0.6], content-length=[0]} ग़ྗ

⡥$MBTTNFUIPE *OD "GUFS after("*", (req, rsp, result) -> {
logger.info("after process"); return result; }); ग़ྗ શͯͷύεʹରͯ͠ϨεϙϯεΛฦ٫͢ΔલʹΠϯλʔηϓτɻ Τϥʔ͕ൃੜͨ͠৔߹͸࣮ߦ͞Εͳ͍ͷͰ஫ҙɻ $ curl http://localhost:8080/simple/revisited revisited [2016-10-06 18:38:17,360]-[netty task-3-2] INFO jp.classmethod.App - after process [2016-10-06 18:38:17,361]-[netty task-3-2] INFO jp.classmethod.App - Call path: / simple/revisited

⡥$MBTTNFUIPE *OD $PNQMFUF complete("*", (req, rsp, cause) -> {
// intercept log logger.info("Call path: {}", req.path()); }); ग़ྗ શͯͷύεʹରͯ͠3FTQPOTFฦ٫ޙʹ࣮ߦ͞Ε·͢ɻϩάͱ͔ʹར༻Ͱ͖ͦ ͏ɻͪ͜Β͸ਖ਼ৗɾΤϥʔؔ܎ͳ͘ඞ࣮ͣߦ͞Ε·͢ɻ [2016-10-06 18:42:21,520]-[netty task-3-6] INFO jp.classmethod.App - after process [2016-10-06 18:42:21,520]-[netty task-3-6] INFO jp.classmethod.App - Call path: / simple/revisited

⡥$MBTTNFUIPE *OD ·ͱΊ wܰྔ͔ͭಈ࡞͕ૣ͍ҹ৅ wઃఆϑΝΠϧ͕ΑΓগͳ͘ίʔυͰهड़ wεέʔϧ͠΍͘͢ɺػೳͷ૊ΈࠐΈ΋͠΍͍͢ w4XBHHFS΁ͷग़ྗͳͲ͋Γ㽂 wখ࢝͘͞ΊΔ8FCΞϓϦέʔγϣϯͷ։ൃϑϨʔϜ ϫʔΫ wͦΖͦΖ4QSJOHͷ࣍Λ୳ͦ͏

⡥$MBTTNFUIPE *OD ࢀরϦϯΫ w IUUQXXXJOGPXPSMEDPNBSUJDMFKBWBKPPCZGSBNFXPSL TJNQMJpFTKBWBXFCEFWFMPQNFOUIUNM w IUUQKBNFTXBSOFSCMPHMPHEPXODPNQPTUTKPPCZ GSBNFXPSLFBTZUPIBOEMFKBWBXFCEFWFMPQNFOU w
IUUQKPPCZPSH w IUUQTHJUIVCDPNKPPCZQSPKFDUKPPCZ w IUUQRJJUBDPNLB[VLJ[PPJUFNTCDGDDEC w IUUQXXXJSBTVUPZBDPN

%FWFMPQFST*0 " ⡥$MBTTNFUIPE *OD #cmdevio2016 ͋Γ͕ͱ͏͍͟͝·ͨ͠ɻ ϒϩάͰҾ͖ଓ͖৘ใൃ৴͍͖ͯ͠·͢ɻ

Introduction of Jooby. DevIO2016

Introduction of Jooby. DevIO2016

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