LINE Spring Framework

Tokuhiro Matsuno LINE Corp.

Service development 1

LINE Corp. 1

LINE Bot SDK

Java

LINE Notify

LINE Java

github enterprise

CSS 4%

HTML 4%Clojure

5%Perl 5%

Objective-C 6%

Shell 9%

Python 10%

JavaScript 18%

Java 41%

"org.springframework spring-webmvc" : 547

"spring-boot-starter-web" : 285

Why Spring?

(Java EE )

Java EE B2C Web

Java EE

Microservices

Microservices

application server

/

/

spring, guice, Vert.x, Dagger2, avans,etc.

groovy, scala,

golang, perl, python,

Theres more than one way

to do it

spring-boot Microservice

spring-boot

uber jar deploy

XML

Java

: LINE Notify

LINE Notify

curl -X POST \

-H 'Authorization: Bearer '

-F 'message=Hello'

https://notify-api.line.me/api/notify

https://notify-api.line.me/api/notify

LINE Notify

MySQL MySQL

API 1

API 2

Web 1

Web 2

Redis Redis

MySQL MySQL 5.6

InnoDB

MMM

Redis Redis sentinel

KVS Redis

Cache

Rate limit

nginx ACL

rewrite

Access log

nginx jetty

nginx jetty

nginx jetty

Jetty spring-boot-starter-jetty

app server

undertow

LINE Fluentd

http status

Fluency

spring-boot 1.4.0.RELEASE spring-boot-starter-

web

spring-boot-starter-freemarker

spring-boot-starter-data-redis

spring-boot-starter-security

spring-boot-starter-mobile

mybatis-spring-boot-starter

spring-boot-starter-web

@GetMapping, @PostMapping

spring-boot-starter-freemarker

freemarker

thymeleaf

IDEA freemarker

Apache Incubator

(spring.ftl issue)

spring-boot-starter-redis

spring-boot-starter-mobile

User-Agent

mybatis-spring-boot-starter O/R Mapper mybatis

JPA

B2C

MyBatis

MyBatis XML DBA

MyBatis + Kotlin

XML

Java

Kotlin

@Mapper

interface BlogDao {

@Select("""

SELECT * FROM blog

""")

fun findAll(): List

@Select("""

SELECT * FROM blog WHERE id=#{id}

""")

fun findById(@Param("id") id: Long): Blog

}

kotlin?

groovy

kotlin

line-notify-common

application.yml logback-spring.xml

line-notify-api

line-notify-admin

line-notify-webline-notify-test

line-notify-model

Deploy & CI at LINE

Deploy

PMC

Shell script rsync Web UI

()

github jenkins

nexus PMC App server

Build jar & testing

upload jar

supervisord

java

nginx

git flow?master

beta

Topic

LINE

Prometheus

TSDB

1

Pull

Prometheus

Prometheus

node_exporter

jmx_exporterjava app

node_exporter

jmx_exporterjava app

httpd

Pull

grafana

node_exporter

jmx_exporter

Dropwizard metrics

jmx_exporter prometheus

LINE Bot +

Spring Boot

LINE Messaging API

LINE

1000 LINE BOT AWARDS

Java + spring-boot

LINE Messaging SDK for Java

JSON

HTTP Client library based on Retrofit

Servlet support

spring-boot support

spring-boot

AutoConfiguration

spring-boot supports auto-configuration

META-INF/spring.factories

org.springframework.boot.autoconfigure.EnableAutoConfiguration=\

com.linecorp.bot.spring.boot.LineBotAutoConfiguration,com.linecorp.bot.spring.boot.LineBotWebMvcConfigurer

com.linecorp.bot

line-bot-spring-boot

1.3.0

@SpringBootApplication

public class EchoApplication {

public static void main(String[] args) {

SpringApplication.run(

EchoApplication.class, args);

}

}

@LineMessageHandler

public class EchoHandler {

@Autowired

private LineMessagingService lineMessagingService;

@EventMapping

public void handle(MessageEvent event) throws Exception {

lineMessagingService.replyMessage(new ReplyMessage(

event.getReplyToken(), singletonList(

new TextMessage(event.getMessage().getText()))))

.execute();

}

}

jjug ccc 2016 fall LINE Bot live coding

Bot

Were hiring.