Store data to Kafka topic

build.gradle

@@ -35,6 +35,7 @@ dependencies {
 	compile (group: 'io.confluent', name: 'kafka-schema-registry', version: '5.4.0'){
 		exclude group:'org.slf4j', module: 'slf4j-log4j12'
 	}
+	compile group: 'org.slf4j', name: 'slf4j-api', version: '1.7.30'
 	compile "org.apache.avro:avro:1.9.1"
 	compile group: 'org.apache.kafka', name: 'kafka-clients', version: '5.4.1-ccs'
 	compileOnly 'org.projectlombok:lombok'

src/main/java/com/safeway/epe/Config/ConfigProps.java

 package com.safeway.epe.Config;
 
 import lombok.Data;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.boot.web.client.RestTemplateBuilder;
+import org.springframework.boot.web.client.RootUriTemplateHandler;
+import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.http.HttpHeaders;
+import org.springframework.web.client.RestTemplate;
+import org.springframework.web.util.UriTemplateHandler;
 
 @Data
 @Configuration
@@ -10,4 +17,22 @@ import org.springframework.context.annotation.Configuration;
 public class ConfigProps {
 
     private String offerTransactionRecordTopic;
+
+    @Value("${schema.api.baseurl}")
+    private String schemaBaseUrl;
+
+    private static final String USER_AGENT = "Producer";
+    private static final String APPLICATION_KAFKA_JSON_VALUE = "application/vnd.kafka.json.v2+json";
+    private static final String ACCEPT_APPLICATION_KAFKA_JSON_VALUE = "application/vnd.kafka.v2+json";
+
+    @Bean
+    RestTemplate restTemplate(RestTemplateBuilder builder) {
+        UriTemplateHandler uriTemplateHandler = new RootUriTemplateHandler(schemaBaseUrl);
+        return builder
+                .uriTemplateHandler(uriTemplateHandler)
+                .defaultHeader(HttpHeaders.USER_AGENT, USER_AGENT)
+                .defaultHeader(HttpHeaders.CONTENT_TYPE, APPLICATION_KAFKA_JSON_VALUE)
+                .defaultHeader(HttpHeaders.ACCEPT, ACCEPT_APPLICATION_KAFKA_JSON_VALUE)
+                .build();
+    }
 }

src/main/java/com/safeway/epe/StoreProducerApplication.java

@@ -10,4 +10,4 @@ public class StoreProducerApplication {
 		SpringApplication.run(StoreProducerApplication.class, args);
 	}
 
-}
+}
\ No newline at end of file

src/main/java/com/safeway/epe/controller/TransactionController.java

 package com.safeway.epe.controller;
 
 import com.safeway.epe.domain.Offsets;
-import com.safeway.epe.domain.TransactionRecorder;
 import com.safeway.epe.service.TransactionService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.ResponseEntity;

src/main/java/com/safeway/epe/repository/TransactionRepository.java

 package com.safeway.epe.repository;
 
 import com.safeway.epe.domain.TransactionRecorder;
-import com.safeway.epe.service.TransactionService;
 import org.springframework.data.repository.CrudRepository;
 import org.springframework.stereotype.Repository;
-
-import java.util.List;
 import java.util.UUID;
 
 @Repository

src/main/java/com/safeway/epe/service/ProducerService.java

 package com.safeway.epe.service;
 
+import com.safeway.epe.domain.ConsumerPayload;
 import com.safeway.epe.domain.Offsets;
 import com.safeway.epe.domain.TransactionPayload;
 import com.safeway.epe.domain.TransactionRecorder;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Component;
-
-import java.util.ArrayList;
+import org.springframework.web.client.RestTemplate;
 import java.util.List;
 
 @Component
-public class ProducerService {
+public class ProducerService
+{
+    private Logger logger = LoggerFactory.getLogger(this.getClass());
+
+    @Autowired
+    private TransactionService transactionService;
 
-    public List<Offsets> produce(TransactionPayload request, String topic, TransactionRecorder transactionRecorder, boolean isReprocesed){
+    @Autowired
+    private RestTemplate restTemplate;
 
-        return new ArrayList<>();
+    public List<Offsets> produce(TransactionPayload request, String topic, TransactionRecorder transactionRecorder, boolean isReprocesed)
+    {
+        String topicUri = "/topics/".concat(topic);
+        ResponseEntity<ConsumerPayload> response = restTemplate.postForEntity(topicUri, request, ConsumerPayload.class);
+        logger.info("response ::response ::" + response);
+
+        if(response != null && (response.getStatusCodeValue() == 200 || response.getStatusCode().is2xxSuccessful()))
+        {
+            logger.info("Data is inserted to topic");
+            return response.getBody().getOffsetsList();
+        }
+        else
+        {
+            transactionService.errorResponse(transactionRecorder, "failed to insert data to topic", false);
+            logger.info("failed to insert data to topic");
+            return response.getBody().getOffsetsList();
+        }
     }
+
 }

src/main/java/com/safeway/epe/service/TransactionService.java

 package com.safeway.epe.service;
 
-import com.safeway.epe.controller.TransactionController;
 import com.safeway.epe.domain.Offsets;
 import com.safeway.epe.domain.TransactionRecorder;
 import org.springframework.http.ResponseEntity;
@@ -9,6 +8,6 @@ import java.util.List;
 
 public interface TransactionService
 {
-
       ResponseEntity<List<Offsets>> produceMessage(String uuid);
+      ResponseEntity<String> errorResponse(TransactionRecorder transactionRecorder, java.lang.String exceptionMessage, boolean isReprocesed);
 }

src/main/java/com/safeway/epe/service/TransactionServiceImpl.java

 package com.safeway.epe.service;
 
 import com.safeway.epe.Config.ConfigProps;
-import com.safeway.epe.controller.TransactionController;
 import com.safeway.epe.domain.Offsets;
 import com.safeway.epe.domain.Record;
 import com.safeway.epe.domain.TransactionPayload;
@@ -9,6 +8,8 @@ import com.safeway.epe.domain.TransactionRecorder;
 import com.safeway.epe.mapper.TransactionPayloadMapper;
 import com.safeway.epe.mapper.TransactionRecordMapper;
 import com.safeway.epe.repository.TransactionRepository;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
@@ -19,6 +20,8 @@ import java.util.*;
 @Service
 public class TransactionServiceImpl implements  TransactionService
 {
+    private Logger logger = LoggerFactory.getLogger(this.getClass());
+
     @Autowired
     TransactionRepository repository;
 
@@ -40,9 +43,15 @@ public class TransactionServiceImpl implements  TransactionService
     private ResponseEntity<List<Offsets>> sendData(TransactionRecorder transactionRecorder, boolean isReprocesed) {
         Record record = TransactionRecordMapper.INSTANCE.recordConvertion(transactionRecorder.getUuid().toString(), transactionRecorder);
         TransactionPayload transactionPayload = TransactionPayloadMapper.INSTANCE.transactionPayloadMapper(record);
-        System.out.println(configProps.getOfferTransactionRecordTopic());
-//        return ResponseEntity.status(HttpStatus.NOT_FOUND).body(Arrays.asList(new Offsets()));
-       return  ResponseEntity.ok(producerService.produce(transactionPayload,configProps.getOfferTransactionRecordTopic(),transactionRecorder,isReprocesed));
+        return  ResponseEntity.ok(producerService.produce(transactionPayload,configProps.getOfferTransactionRecordTopic(),transactionRecorder,isReprocesed));
     }
 
+    public ResponseEntity<String> errorResponse(TransactionRecorder transactionRecorder, String exceptionMessage, boolean isReprocesed) {
+        if(!isReprocesed){
+            logger.error("Error response : "+ exceptionMessage);
+        }
+        return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body("Error");
+    }
+
+
 }

src/main/resources/avro/transactionRecord.avsc

 {
-  "name": "TransactionRecorder1",
+  "name": "TransactionRecorder",
   "type": "record",
   "namespace": "com.safeway.epe.domain",
   "fields": [