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29 changes: 29 additions & 0 deletions
29
src/main/java/com/hoangtien2k3/shopappbackend/components/MyKafkaListener.java
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| @@ -0,0 +1,29 @@ | ||
| package com.hoangtien2k3.shopappbackend.components; | ||
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| import com.hoangtien2k3.shopappbackend.models.Category; | ||
| import com.hoangtien2k3.shopappbackend.utils.Const; | ||
| import org.springframework.kafka.annotation.KafkaHandler; | ||
| import org.springframework.kafka.annotation.KafkaListener; | ||
| import org.springframework.stereotype.Component; | ||
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| import java.util.List; | ||
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| @Component | ||
| @KafkaListener(id = Const.KAFKA_ID, topics = {Const.KAFKA_TOPIC_INSERT_CATEGORY, Const.KAFKA_TOPIC_GET_ALL_CATEGORY}) | ||
| public class MyKafkaListener { | ||
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| @KafkaListener(topics = Const.KAFKA_TOPIC_INSERT_CATEGORY) | ||
| public void listenerCategory(Category category) { | ||
| System.out.println("Received Category: " + category); | ||
| } | ||
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| @KafkaListener(topics = Const.KAFKA_TOPIC_GET_ALL_CATEGORY) | ||
| public void listenListOfCategory(List<Category> categories) { | ||
| System.out.println("Received list of Category: " + categories); | ||
| } | ||
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| @KafkaHandler(isDefault = true) | ||
| public void unknown(Category category) { | ||
| System.out.println("Received unknown: " + category); | ||
| } | ||
| } |
19 changes: 19 additions & 0 deletions
19
.../java/com/hoangtien2k3/shopappbackend/components/converters/CategoryMessageConverter.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,19 @@ | ||
| package com.hoangtien2k3.shopappbackend.components.converters; | ||
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| import com.hoangtien2k3.shopappbackend.models.Category; | ||
| import org.springframework.kafka.support.converter.JsonMessageConverter; | ||
| import org.springframework.kafka.support.mapping.DefaultJackson2JavaTypeMapper; | ||
| import org.springframework.kafka.support.mapping.Jackson2JavaTypeMapper; | ||
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| import java.util.Collections; | ||
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| public class CategoryMessageConverter extends JsonMessageConverter { | ||
| public CategoryMessageConverter() { | ||
| super(); | ||
| DefaultJackson2JavaTypeMapper typeMapper = new DefaultJackson2JavaTypeMapper(); | ||
| typeMapper.setTypePrecedence(Jackson2JavaTypeMapper.TypePrecedence.TYPE_ID); | ||
| typeMapper.addTrustedPackages("com.hoangtien2k3.shopappbackend"); | ||
| typeMapper.setIdClassMapping(Collections.singletonMap("category", Category.class)); | ||
| this.setTypeMapper(typeMapper); | ||
| } | ||
| } |
34 changes: 34 additions & 0 deletions
34
src/main/java/com/hoangtien2k3/shopappbackend/configurations/KafkaCofiguration.java
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| @@ -0,0 +1,34 @@ | ||
| package com.hoangtien2k3.shopappbackend.configurations; | ||
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| import com.hoangtien2k3.shopappbackend.utils.Const; | ||
| import org.apache.kafka.clients.admin.NewTopic; | ||
| import org.springframework.context.annotation.Bean; | ||
| import org.springframework.context.annotation.Configuration; | ||
| import org.springframework.kafka.annotation.EnableKafka; | ||
| import org.springframework.kafka.core.KafkaOperations; | ||
| import org.springframework.kafka.listener.CommonErrorHandler; | ||
| import org.springframework.kafka.listener.DeadLetterPublishingRecoverer; | ||
| import org.springframework.kafka.listener.DefaultErrorHandler; | ||
| import org.springframework.util.backoff.FixedBackOff; | ||
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| @Configuration | ||
| @EnableKafka | ||
| public class KafkaCofiguration { | ||
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| @Bean | ||
| public CommonErrorHandler errorHandler(KafkaOperations<Object, Object> kafkaOperations) { | ||
| return new DefaultErrorHandler( | ||
| new DeadLetterPublishingRecoverer(kafkaOperations), new FixedBackOff(1000L, 2) | ||
| ); | ||
| } | ||
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| @Bean | ||
| public NewTopic insertACategoryTopic() { | ||
| return new NewTopic(Const.KAFKA_TOPIC_INSERT_CATEGORY, 1, (short) 1); | ||
| } | ||
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| @Bean | ||
| public NewTopic getAllCategoryTopic() { | ||
| return new NewTopic(Const.KAFKA_TOPIC_GET_ALL_CATEGORY, 1, (short) 1); | ||
| } | ||
| } |
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