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Aeromock͕ौ୩Javaʹ ΍ͬͯŝŦᴸᴸ ƅ㱼ƅ)ᴸᴸ!! (AeromockΛࢧ͑Δٕज़ʣ Akinori Yamada (@stormcat24) 2014/12/13 Shibuya Java #9

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who? ‣ @stormcat24 ‣ CyberAgent, Inc. ‣ ࡶ༻ܥ΀Ζ͙Β·ʔ ‣ Scalaͱ͔ͦͷ΁Μ ‣ ࠷ۙ͸JavaΛݟ௚ͭͭ͋͠Δ

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Agenda ‣ Aeromock is Կ ‣ AeromockΛࢧ͑Δٕज़ ‣ ࠓޙͷల๬ʹ͍ͭͯ ‣ ·ͱΊ

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Aeromock is Կ

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https://github.com/CyberAgent/aeromock

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Aeromock is ‣ Scala੡ϞοΫαʔό ‣ JVMܥςϯϓϨʔτΤϯδϯͷελϒ ‣ Freemarker/Velocity/Groovy Templates etc ‣ JSON API ‣ Protocol Buffers

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動作イメージ Aeromock Client 3FRVFTU )5.- σʔλϑΝΠϧ (JSON / YAML) ςϯϓϨʔτ ϑΝΠϧ (FTL౳ʣ

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目指すところ ‣ ϑϩϯτ͕αʔόαΠυʹґଘͤͣʹ։ൃ ‣ ຊ౰ͷҙຯͰͷɺϑϩϯτΤϯυɾαʔόαΠυ෼ ۀͷཱ֬ ‣ ઐ໳ྖҬͷ࡞ۀʹ஫ྗ ‣ লϦιʔε ‣ ࠶ىಈෆཁͰαΫαΫ։ൃ

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Aeromockを支える技術

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使ってる技術 ‣ Netty ‣ Javassist ‣ Groovy ‣ Gradle ‣ snakeyaml ‣ javax.el ‣ Scaldi

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Netty ‣ http://netty.io/ ‣ Netty4ܥΛར༻ ‣ ͱʹ͔͘ബ͚Ε͹ബ͍΄Ͳ͍͍ͱ͍͏ߟ͑ ‣ ௿ϨΠϠʔ૚ͷίϯτϩʔϧ͕͠΍͍͢

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Javassist ‣ όΠτίʔυΤϯϋϯα ‣ ςϯϓϨ্Ͱϝιουίʔϧ͕͋ΔʢΫιʣ࣮૷ͱ͔ ੈؒʹ͸΍ͬͺΓ͋Δ ‣ σʔλϑΝΠϧͰඞཁͳϝιουఆٛΛͯ͠ɺಈత ʹΠϯελϯεʹ࣮૷ͤ͞Δ

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${target.execute()}

メソッド呼び出し（遺憾） target: __methods: - name: execute: value: shibuya_java

shibuya_java

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動的に追加されるメソッド public Object execute(Object[] args) { return “shibuya_java”; }

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Groovy ‣ ϧʔςΟϯά੍ޚεΫϦϓτʢrouting.groovyʣͷDSLΛGroovy Ͱ࣮૷ ‣ ΧελϜλά΍ϑΝϯΫγϣϯͷϞοΫ࣮૷ʹ΋ར༻ ‣ ࠶ىಈͳ͠ͰɺτϥΠΞϯυΤϥʔ͍ͨ͠εΫϦϓςΟϯάʹ͸ ͔ͳΓ༗༻ ‣ ύϑΥʔϚϯεʹ͸஫ҙʢมߋ͕͋ͬͨͱ͖͚ͩύʔε͢Δ࣮૷ ʹͯ͠Δʣ ‣ groovy.util.GroovyScriptEngineͰ༰қʹ૊ΈࠐΊΔ

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Gradle ‣ aeromock-brewʢύοέʔδϚωʔδϟʣͰར༻ ‣ https://github.com/CyberAgent/aeromock-brew ‣ gradlewΛ௨ͯ͠ɺMaven Central͔Β೚ҙͷόʔ δϣϯΛΠϯετʔϧͰ͖Δ ‣ GradleͰॻ͚͹ΫϩεϓϥοτϑΥʔϜΛ͋Μ·Γ ҙࣝ͠ͳͯ͘ࡁΉ

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snakeyaml ‣ https://code.google.com/p/snakeyaml/ ‣ JavaͷYAML࣮૷ ‣ σʔλϑΝΠϧͱͯ͠JSONʹՃ͑ɺYAMLΛ࠾༻ ͍ͯ͠ΔʢίϝϯτΛ࢓༷ͱͯ͠࢒͠΍͍ͨ͢Ίʣ

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javax.el ‣ σʔλϑΝΠϧͷதͰɺม਺ΛՃ޻͍ͨ͠Α͏ͳͱ ͖ɺELࣜͷൣᙝͰ޷͖ͳΑ͏ʹͰ͖Δ ‣ EL3.0ʢJSR-341ʣ ‣ org.glassfish:javax.el:3.0.0Λར༻ ‣ javax.el.ELProcessorΛ࢖͑͹ɺׂͱ؆୯ʹಋೖͰ ͖Δ

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form_data: name: ${FORM_DATA[‘name’].trim()} age: ${PARAMETERS[‘age’].trim()} comment: ${PARAMETERS[‘comment’].substring(0, 100)} ELར༻ྫ

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protobuf-java ‣ protobufͷJava࣮૷ ‣ com.google.protobuf:protobuf-java:2.6.1 ‣ protobufͷόΠφϦΛੜ੒͢ΔͨΊʹར༻

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protoparser ‣ https://github.com/square/protoparser ‣ protoϑΝΠϧͷύʔαʔ ‣ protobuf-javaʹ͸ύʔαʔ͸ແ͔ͬͨʢผ్ protocͰύʔεˠJavaͷίʔυΛੜ੒͢ΔͨΊʣ ‣ ύʔεͯ͠औಘͨ͠protobufͷߏ଄ͱɺσʔλϑΝ ΠϧΛಥ͖߹ΘͤΔ

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Scaldi ‣ http://scaldi.org/ ‣ Scala༻ͷܰྔͳDIϥΠϒϥϦ ‣ ࠷ॳDIແ͠Ͱ࣮૷͕ͯͨ͠ɺͩΜͩΜਏ͘ͳ͖ͬͯ ͨͷͰಋೖ

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今後の展望について

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φϏήʔγϣϯπʔϧ ‣ ݱঢ়ɺݟ͍ͨը໘ͷURLΛ͍͍ͪͪϒϥ΢βʹೖྗ ͢Δඞཁ͕͋ΔͷͰλϧ͍ ‣ ഑ԼͷςϯϓϨʔτΛϑΝΠϧπϦʔදࣔͯ͠ɺඈ ΂ΔWeb UIΛ༻ҙ ‣ ࣍ͷϝδϟʔϦϦʔεͰͷ౤ೖΛ༧ఆ

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Live Loading ‣ ςϯϓϨ΍σʔλϑΝΠϧΛมߋͨ͠৔߹ɺ͍͍ͪ ͪϦϩʔυ͢Δͷ͕λϧ͍ ‣ grunt-contrib-watchͷAeromock൛Έ͍ͨͳ

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テンプレートエンジン ‣ धཁͷߴͦ͏ͳςϯϓϨʔτΤϯδϯʹରԠ͢Δ ‣ ࣍Կ͕͍͍Ͱ͔͢Ͷ|шƅ)ŧŽŕ ‣ ಛఆͷόʔδϣϯʹ͕ͬͭΓґଘͯ͠͠·͍ͬͯΔ ͷͰɺ΋͏গ͠ϓϥΨϒϧͳߏ଄ʹ͍ͨ͠ʢOSGi ͷ࠾༻ͱ͔ʣ

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テスト支援 ‣ ςϯϓϨʔτͱσʔλϑΝΠϧͷνΣοΫπʔϧ ‣ Ұ౓ಈ͘Α͏ʹ࡞ͬͨσʔλϑΝΠϧ͕ɺ์ஔ͞Ε ͯ؊৺ͳͱ͖ʹಈ͔ͳ͍ͳΜͯ͜ͱ΋͋Δ ‣ ܧଓతʹ඼࣭ΛอͯΔ࢓૊ΈΛͭ͘Δ ‣ ࣮͸Ӆ͠ػೳͱͯ͠طʹ͋Δʢ׬੒౓·ͩ௿͍ʣ

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まとめ

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Javaで迷惑かけないようにしよう ‣ αʔόαΠυʹҾ͖ͣΒΕΔͱɺϑϩϯτΤϯδχ ΞͷJava΁ͷҹ৅͕ѱ͘ͳΔ ‣ Java͸ѱ͘ͳ͍ɻʢΫιʣϓϩδΣΫτ͕ѱ͍ ‣ ϑϩϯτΤϯδχΞʹจ۟ݴΘΕͳ͍ͨΊͷࢪࡦ͕ ඞཁ

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ステッカー置いてきますね