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宿泊予約サイトにおける検索と料金計算の両立
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Shoichi Kaji
September 18, 2024
Programming
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宿泊予約サイトにおける検索と料金計算の両立
一休×AEON 事業会社のサービスを支える基盤開発トーク 2024/09/18
https://ikyu.connpass.com/event/327095/
Shoichi Kaji
September 18, 2024
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Transcript
॓ധ༧αΠτʹ͓͚Δ ݕࡧͱྉۚܭࢉͷཱ྆ Shoichi Kaji
॓ധ༧αΠτ Ұٳ.com
͢͜ͱ • ॓ധ༧αΠτҰٳ.comͰͨ͘͞ΜͷॴͰ "ྉۚ"Λܭࢉ͠ද͍ࣔͯ͠Δ • ݕࡧͱྉۚܭࢉີʹؔ࿈͍ͯ͠Δ • Solr + Solr
pluginͰݕࡧͱྉۚܭࢉΛཱ྆ͤ͞ ͍ͯΔ
Ұٳ.comʹ͓͚Δྉۚͷදࣔ ͨ͘͞ΜͷॴͰ"ྉۚ"Λ ද͍ࣔͯ͠Δ "ྉۚ"Ϣʔβ͕ϗςϧΛ બͿ্Ͱॏཁͳࢦඪͷͻͱͭ
"ྉۚ"ʹٻΊΒΕΔͷ • ֤छ݅ɺ֤छׂҾΛՃຯ্ͨ͠Ͱͷྉۚ -> ࣄલʹͯ͢ͷ߹ΛٻΊ͓ͯ͘ͷࠔɺ ΦϯϥΠϯͰܭࢉ͢Δඞཁ͕͋Δ • ࢠڙྉۚ • ׂҾͷ݅:
ରձһϥϯΫɺ༗ޮظݶɺର॓ധɺഉଞ੍ޚ • ຊདྷྉۚ༧ʹରܾͯ͠·Δͷ • τοϓϖʔδʹ֤ϗςϧʹྉ͕ۚදࣔ͞Ε͍ͯΔɻ͜Ε͜ͷϗςϧ͕औΓ͏Δྉۚ ͷதͰͷ࠷খΛද͍ࣔͯ͠Δ (collapse)ɻΑͬͯཪͰԿेഒͷྔͷྉۚܭࢉΛ͠ ͳ͍ͱ͍͚ͳ͍ • ݕࡧϖʔδʹදࣔ͞Ε͍ͯΔྉۚɺ֤छ fi lterΛөͨ͠ͷ • ͨͱ͑ʮே৯͖ʯͱ͍͏ fi lter͕՝͞ΕΕɺே৯͖ϓϥϯͷྉۚͷ࠷҆
ݕࡧͱྉۚܭࢉີʹؔ࿈ • લड़ͷ௨ΓɺྉۚܭࢉͷதͰcollapse, fi lterͳͲ "ݕࡧ"จ຺Ͱग़ͯ͘Δͷͱಉ͡ॲཧΛඞཁͱ͢Δ • ܭࢉ͞ΕͨྉۚΛʮ2ສԁҎԼͷϗςϧʹߜΔʯ ʮྉۚͷ͍҆ॱʹฒΔʯͳͲݕࡧͷ fi
lter, sort ʹ͏͜ͱ͋Δ • ݕࡧͱྉۚܭࢉಉ࣌ʹѻ͑ͳ͍ͱ͍͚ͳ͍
ີʹؔ࿈͠߹ͬͨݕࡧɺ ྉۚܭࢉΛͲ͏࣮ݱ͢Δ͔ʁ
ݕࡧ • ·ͣݕࡧ • ҰൠʹݕࡧΤϯδϯͱͯ͠Elasticsearch, Apache SolrͳͲ͕ީิͱ͕ͯ͋͠Δ • Ұٳ.comͰApache SolrΛ࠾༻͍ͯ͠Δ
ݕࡧ Solr • Apache Solr • "ݕࡧ"ͱݴͬͯࢥ͍ු͔Ϳػೳ͍͍ͩͨἧ͓ͬͯΓɺ ͱͯΑ͍ιϑτΣΞͩͱࢥ͏ https://solr.apache.org/
ྉۚܭࢉ • ࣍ʹྉۚܭࢉɻલड़ͷ௨Γɺྉۚܭࢉݕࡧͱಉ࣌ʹͰ͖Δ ͷ͕·͍͠ɻSolrͰྉۚܭࢉͰ͖Δʁ • SolrͰquery্ͰࣜΛఆٛ͠ɺͦͷ݁ՌΛฦ͢͜ͱͰ͖Δ • ྉۚܭࢉSolr query্ͰࣜΛఆٛ͢Ε͍͍ͷͰʁ //
query.json { "query": "*:*", "fields": [ "product(sum(Price1_i,Price2_i),div(sub(100,Rate_f),100))" ] } // response { "response":{"docs":[{ "product(sum(Price1_i,Price2_i)...)":50487.36 }]} }
ྉۚܭࢉ • ྉۚܭࢉSolr query্ͰࣜΛఆٛ͢Ε͍͍ͷͰʁ • ͑: ݫ͍͠ 🥲 • ෳࡶͳܭࢉΛSolr
query্Ͱදݱ͢Δͷ͔ͳΓݫ͠ ͍ɻͱ͘ʹҰ࣌มΛѻ͍ʹ͍͘ • ܭࢉ͕ෳࡶͩͱͦͷSolr queryͷαΠζ૿͑Δɻ ͦͯ͠parseͷίετ͔ͳΓ͔͔Δ
ྉۚܭࢉ Solr plugin • ͰͲ͏͢Δ͔ʁ • Solrʹpluginػߏ͕͋Δ • JavaͰϓϩάϥϜΛॻ͖ɺSolrͷ֤छॲཧΛ ΧελϚΠζͰ͖Δ
• ಛʹSolr query্Ͱ͑ΔಠࣗؔΛఆٛͰ͖Δ
ྉۚܭࢉ Solr plugin • Solr query্ͰྉۚΛܭࢉͯ͠ฦ͢ my_priceؔΛಋೖ͠ɺͦͷ࣮Λ MyPriceParser.javaͱͯ͠ॻ͚Α͍ // my_priceͷ࣮:
MyPriceParser.java public class MyPriceParser extends ValueSourceParser { @Override public ValueSource parse(FunctionQParser fp) throws SyntaxError { ... } } // query.json { "query": "*:*", "fields": [ "my_price(20240901,2,3)" ] }
ྉۚܭࢉ Solr plugin • Solr pluginʹΑΔಠ࣮ࣗؔଟ͘ͷར͕͋Δ • JavaͰهड़Ͱ͖ΔͷͰɺมɺΫϥεͳͲͳΜͰ͑Δ • indexσʔλͷಡΈऔΓJavaͰهड़Ͱ͖ΔͷͰɺಠࣗʹγϦΞϥΠζͨ͠
σʔλͳͲΛindex͠͏͜ͱͰ͖Δ • σʔλιʔεͱͯ͠indexσʔλҎ֎ͷͷ͑Δ • ͦͯͪ͠ΖΜmy_priceΛ fi lter,sortͯ͑͠Δʂ • { "query": "*:*", "filter": ["{!frange u=20000}my_price(20240901,2,3)"], // 2ສԁҎԼ "sort": "my_price(20240901,2,3) asc", // ྉۚͷ͍҆ॱ "fields": ["my_price(20240901,2,3)"] }
Solr + Solr pluginΛͬͯ ݕࡧɺྉۚܭࢉΛཱ྆Ͱ͖ͨ 😉
·ͱΊ • ॓ധ༧αΠτҰٳ.comͰͨ͘͞ΜͷॴͰ "ྉۚ"Λܭࢉ͠ද͍ࣔͯ͠Δ • ݕࡧͱྉۚܭࢉີʹؔ࿈͍ͯ͠Δ • Solr + Solr
pluginͰݕࡧͱྉۚܭࢉΛཱ྆ͤ͞ ͍ͯΔ