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Merge pull request #22 from EntryDSM/feature/21-kafka
Status Kafka 설정
2 parents b3c6b86 + bd3d685 commit 4d70a40

9 files changed

Lines changed: 211 additions & 5 deletions

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‎buildSrc/src/main/kotlin/Dependencies.kt‎

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@@ -53,4 +53,7 @@ object Dependencies {
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// Spring Cloud Config
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const val SPRING_CLOUD_STARTER_CONFIG = "org.springframework.cloud:spring-cloud-starter-config"
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// Kafka
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const val KAFKA = "org.springframework.kafka:spring-kafka"
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}

‎casper-status/build.gradle.kts‎

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@@ -84,7 +84,10 @@ dependencies {
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implementation(Dependencies.RESILIENCE4J_SPRING_BOOT)
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// Spring Cloud Config
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//implementation(Dependencies.SPRING_CLOUD_STARTER_CONFIG)
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// implementation(Dependencies.SPRING_CLOUD_STARTER_CONFIG)
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// Kafka
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implementation(Dependencies.KAFKA)
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}
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protobuf {
@@ -125,4 +128,8 @@ tasks.withType<KotlinCompile> {
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tasks.withType<Test> {
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useJUnitPlatform()
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}
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}
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tasks.matching { it.name.startsWith("ktlint") }.configureEach {
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enabled = false
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}

‎casper-status/src/main/kotlin/hs/kr/entrydsm/status/global/security/SecurityConfig.kt‎

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@@ -16,7 +16,7 @@ import org.springframework.security.web.SecurityFilterChain
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*/
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@Configuration
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class SecurityConfig(
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private val objectMapper: ObjectMapper
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private val objectMapper: ObjectMapper,
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) {
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companion object {
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const val ADMIN_ROLE = "ADMIN"
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.sessionManagement {
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it.sessionCreationPolicy(SessionCreationPolicy.STATELESS)
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}
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.authorizeHttpRequests {
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it
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.requestMatchers("/").permitAll()
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.with(FilterConfig(objectMapper)) { }
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return http.build()
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}
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}

‎casper-status/src/main/kotlin/hs/kr/entrydsm/status/infrastructure/kafka/config/KafkaConsumerConfig.kt‎

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package hs.kr.entrydsm.status.infrastructure.kafka.config
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import org.apache.kafka.clients.consumer.ConsumerConfig
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import org.apache.kafka.common.serialization.StringDeserializer
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import org.springframework.context.annotation.Bean
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import org.springframework.context.annotation.Configuration
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import org.springframework.kafka.annotation.EnableKafka
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import org.springframework.kafka.config.ConcurrentKafkaListenerContainerFactory
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import org.springframework.kafka.core.DefaultKafkaConsumerFactory
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import org.springframework.kafka.support.serializer.JsonDeserializer
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/**
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* 카프카 Consumer 관련 설정
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*/
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@EnableKafka
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@Configuration
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class KafkaConsumerConfig(
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private val kafkaProperty: KafkaProperty,
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) {
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@Bean
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fun kafkaListenerContainerFactory(): ConcurrentKafkaListenerContainerFactory<String, String> {
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val factory = ConcurrentKafkaListenerContainerFactory<String, String>()
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factory.setConcurrency(2)
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factory.consumerFactory = DefaultKafkaConsumerFactory(consumerFactoryConfig())
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factory.containerProperties.pollTimeout = 500
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return factory
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}
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private fun consumerFactoryConfig(): Map<String, Any> {
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return mapOf(
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ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG to kafkaProperty.serverAddress,
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ConsumerConfig.ISOLATION_LEVEL_CONFIG to "read_committed",
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ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG to StringDeserializer::class.java,
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ConsumerConfig.ENABLE_AUTO_COMMIT_CONFIG to "false",
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ConsumerConfig.AUTO_OFFSET_RESET_CONFIG to "latest",
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ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG to JsonDeserializer::class.java,
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ConsumerConfig.MAX_POLL_INTERVAL_MS_CONFIG to 5000,
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JsonDeserializer.TRUSTED_PACKAGES to "*",
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"security.protocol" to "SASL_PLAINTEXT",
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"sasl.mechanism" to "SCRAM-SHA-512",
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"sasl.jaas.config" to "org.apache.kafka.common.security.scram.ScramLoginModule required " +
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"username=\"${kafkaProperty.confluentApiKey}\" " +
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"password=\"${kafkaProperty.confluentApiSecret}\";",
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)
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}
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}

‎casper-status/src/main/kotlin/hs/kr/entrydsm/status/infrastructure/kafka/config/KafkaProducerConfig.kt‎

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package hs.kr.entrydsm.status.infrastructure.kafka.config
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import org.apache.kafka.clients.producer.ProducerConfig
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import org.apache.kafka.common.serialization.StringSerializer
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import org.springframework.context.annotation.Bean
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import org.springframework.context.annotation.Configuration
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import org.springframework.kafka.core.DefaultKafkaProducerFactory
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import org.springframework.kafka.core.KafkaTemplate
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import org.springframework.kafka.core.ProducerFactory
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import org.springframework.kafka.support.serializer.JsonSerializer
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/**
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* 카프카 Producer 관련 설정
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*/
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@Configuration
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class KafkaProducerConfig(
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private val kafkaProperty: KafkaProperty,
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) {
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@Bean
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fun kafkaTemplate(): KafkaTemplate<String, Any> {
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return KafkaTemplate(producerFactory())
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}
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private fun producerFactory(): ProducerFactory<String, Any> {
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return DefaultKafkaProducerFactory(producerConfig())
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}
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private fun producerConfig(): Map<String, Any> {
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return mapOf(
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ProducerConfig.BOOTSTRAP_SERVERS_CONFIG to kafkaProperty.serverAddress,
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ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG to StringSerializer::class.java,
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ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG to JsonSerializer::class.java,
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"security.protocol" to "SASL_PLAINTEXT",
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"sasl.mechanism" to "SCRAM-SHA-512",
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"sasl.jaas.config" to
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"org.apache.kafka.common.security.scram.ScramLoginModule required " +
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"username=\"${kafkaProperty.confluentApiKey}\" " +
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"password=\"${kafkaProperty.confluentApiSecret}\";",
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)
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}
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}

‎casper-status/src/main/kotlin/hs/kr/entrydsm/status/infrastructure/kafka/config/KafkaProperty.kt‎

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package hs.kr.entrydsm.status.infrastructure.kafka.config
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import org.springframework.boot.context.properties.ConfigurationProperties
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import org.springframework.boot.context.properties.ConfigurationPropertiesBinding
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/**
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* 카프카 서버 관련 설정
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*/
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@ConfigurationPropertiesBinding
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@ConfigurationProperties("kafka")
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class KafkaProperty(
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val serverAddress: String,
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val confluentApiKey: String,
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val confluentApiSecret: String,
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)

‎casper-status/src/main/kotlin/hs/kr/entrydsm/status/infrastructure/kafka/config/KafkaTopics.kt‎

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package hs.kr.entrydsm.status.infrastructure.kafka.config
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/**
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* 카프카 토픽을 정의하는 객체
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*/
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object KafkaTopics {
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/**
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* 원서 생성 토픽
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*/
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const val CREATE_APPLICATION = "create-application"
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/**
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* 유저 탈퇴 토픽
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*/
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const val DELETE_USER = "delete-user"
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/**
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* 최종 제출 토픽
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*/
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const val SUBMIT_APPLICATION_FINAL = "submit-application-final"
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}

‎casper-status/src/main/kotlin/hs/kr/entrydsm/status/infrastructure/kafka/consumer/StatusConsumer.kt‎

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package hs.kr.entrydsm.status.infrastructure.kafka.consumer
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import com.fasterxml.jackson.databind.ObjectMapper
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import hs.kr.entrydsm.status.domain.status.application.port.`in`.CreateStatusUseCase
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import hs.kr.entrydsm.status.domain.status.application.port.`in`.DeleteStatusUseCase
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import hs.kr.entrydsm.status.domain.status.application.port.`in`.UpdateStatusUseCase
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import hs.kr.entrydsm.status.infrastructure.kafka.config.KafkaTopics
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import hs.kr.entrydsm.status.infrastructure.kafka.consumer.dto.CreateApplicationEvent
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import org.springframework.kafka.annotation.KafkaListener
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import org.springframework.stereotype.Component
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/**
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* 입학 원서 상태 관련 메시지를 수신하는 Consumer
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*/
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@Component
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class StatusConsumer(
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private val mapper: ObjectMapper,
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private val createStatusUseCase: CreateStatusUseCase,
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private val updateStatusUseCase: UpdateStatusUseCase,
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private val deleteStatusUseCase: DeleteStatusUseCase,
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) {
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/**
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* 원서가 생성되면, 원서 상태를 생성합니다.
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*
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* @param message 원서 생성 이벤트
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*/
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@KafkaListener(
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topics = [KafkaTopics.CREATE_APPLICATION],
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groupId = "create-status",
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containerFactory = "kafkaListenerContainerFactory",
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)
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fun createStatus(message: String) {
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val createApplicationEvent = mapper.readValue(message, CreateApplicationEvent::class.java)
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createStatusUseCase.execute(createApplicationEvent.receiptCode)
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}
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/**
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* 최종 제출된 원서의 상태를 변경합니다.
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*
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* @param message 최종 제출된 원서의 접수 번호
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*/
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@KafkaListener(
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topics = [KafkaTopics.SUBMIT_APPLICATION_FINAL],
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groupId = "update-status",
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containerFactory = "kafkaListenerContainerFactory",
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)
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fun updateStatus(message: String) {
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val receiptCode = mapper.readValue(message, Long::class.java)
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updateStatusUseCase.execute(receiptCode)
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}
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/**
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* 탈퇴한 유저의 원서 상태를 삭제합니다.
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*
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* @param message 탈퇴한 유저의 접수 번호
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*/
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@KafkaListener(
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topics = [KafkaTopics.DELETE_USER],
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groupId = "delete-status",
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containerFactory = "kafkaListenerContainerFactory",
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)
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fun deleteStatus(message: String) {
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val receiptCode = mapper.readValue(message, Long::class.java)
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deleteStatusUseCase.execute(receiptCode)
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}
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}

‎casper-status/src/main/kotlin/hs/kr/entrydsm/status/infrastructure/kafka/consumer/dto/CreateApplicationEvent.kt‎

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package hs.kr.entrydsm.status.infrastructure.kafka.consumer.dto
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import java.util.UUID
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data class CreateApplicationEvent(
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val receiptCode: Long,
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val userId: UUID,
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)

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