changes

build.gradle

@@ -20,7 +20,7 @@ repositories {
 
 dependencies {
 	implementation 'org.springframework.boot:spring-boot-starter-web'
-	compile group: 'org.springframework', name: 'spring-context', version: '5.2.5.RELEASE'
+	//compile group: 'org.springframework', name: 'spring-context', version: '5.2.5.RELEASE'
 	compile group: 'com.google.guava', name: 'guava', version: '28.2-jre'
 	compileOnly 'org.projectlombok:lombok'
 	annotationProcessor 'org.projectlombok:lombok'

src/main/java/com/nisum/offertransactionservice/config/OfferTransactionConfig.java

@@ -2,9 +2,13 @@ package com.nisum.offertransactionservice.config;
 
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.web.client.*;
 
 @Configuration
 public class OfferTransactionConfig {
 
-
+    @Bean
+    public RestTemplate getRestTemplate() {
+        return new RestTemplate();
+    }
 }

src/main/java/com/nisum/offertransactionservice/converter/OfferConverter.java

@@ -7,12 +7,13 @@ import org.springframework.stereotype.Component;
 import java.util.function.Function;
 
 @Component
-public class OfferConverter implements Function<OfferTransactionRequest,PERequest> {
+public class OfferConverter implements Function<OfferTransactionRequest, PERequest> {
 
     @Override
     public PERequest apply(OfferTransactionRequest offerTransactionRequest) {
-
-        //Logic to convert OfferTransactionRequest to PE Request
-        return null;
+        PERequest peRequest = new PERequest();
+        peRequest.setHhid(offerTransactionRequest.getHhid());
+        peRequest.setItemList(offerTransactionRequest.getItemList());
+        return peRequest;
     }
 }

src/main/java/com/nisum/offertransactionservice/converter/PEResponseToOfferTransactionResConverter.java

@@ -8,6 +8,9 @@ import java.util.function.Function;
 public class PEResponseToOfferTransactionResConverter implements Function<PEResponse, OfferTransactionResponse> {
     @Override
     public OfferTransactionResponse apply(PEResponse peResponse) {
-        return null;
+        OfferTransactionResponse offerTransactionResponse = new OfferTransactionResponse();
+        offerTransactionResponse.setDiscountedItemList(peResponse.getDiscountedItemList());
+        offerTransactionResponse.setHhid(peResponse.getHhid());
+        return offerTransactionResponse;
     }
 }

src/main/java/com/nisum/offertransactionservice/dao/OfferDao.java

@@ -4,25 +4,28 @@ import com.nisum.offertransactionservice.model.OfferTransactionRequest;
 import com.nisum.offertransactionservice.model.OfferTransactionResponse;
 import com.nisum.offertransactionservice.model.PERequest;
 import com.nisum.offertransactionservice.model.PEResponse;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
+import org.springframework.http.*;
+import org.springframework.web.client.*;
 
 import java.util.concurrent.CompletableFuture;
 
 @Component
 public class OfferDao {
 
+    @Autowired
+    private RestTemplate restTemplate;
 
+    //TODO add promotionEngine url.
     private static final String promotionEngineUrl = "";
 
     public OfferTransactionResponse convertions(OfferTransactionRequest offerTransactionRequest) {
-
         return null;
     }
 
-    public CompletableFuture<PEResponse> callPE(PERequest peRequest) {
-       /* ResponseEntity<PEResponse> peResponse = restTemplate.exchange(promotionEngineUrl, HttpMethod.POST, HttpEntity.EMPTY,PEResponse.class);
-        return CompletableFuture.completedFuture(peResponse.getBody());*/
-        return null;
-
+    public PEResponse callPE(PERequest peRequest) {
+        ResponseEntity<PEResponse> peResponse = restTemplate.exchange(promotionEngineUrl, HttpMethod.POST, HttpEntity.EMPTY, PEResponse.class);
+        return peResponse.getBody();
     }
 }

src/main/java/com/nisum/offertransactionservice/model/PERequest.java

@@ -19,5 +19,5 @@ public class PERequest {
 
     String hhid;
     List<Item> itemList;
-    List<OfferLookup> eligibleOffers = newArrayList();
+    List<OfferLookup> eligibleOffers;
 }

src/main/java/com/nisum/offertransactionservice/model/PEResponse.java

@@ -6,17 +6,16 @@ import lombok.Data;
 import lombok.NoArgsConstructor;
 import lombok.experimental.FieldDefaults;
 
+import java.util.List;
+
+import static com.google.common.collect.Lists.newArrayList;
+
 @Data
 @NoArgsConstructor
 @AllArgsConstructor
 @FieldDefaults(level = AccessLevel.PRIVATE, makeFinal = false)
 public class PEResponse {
 
-    String offerId;
-    String offerType;
-    String storeId;
-    String terminal;
-    String preCondition;
-    String id;
-    String idType;
+    String hhid;
+    List<Item> discountedItemList = newArrayList();
 }

src/main/java/com/nisum/offertransactionservice/service/OfferCallingPEService.java

@@ -9,9 +9,6 @@ import com.nisum.offertransactionservice.model.PEResponse;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
-import java.util.concurrent.CompletableFuture;
-import java.util.concurrent.ExecutionException;
-
 @Service
 public class OfferCallingPEService {
     @Autowired
@@ -22,18 +19,10 @@ public class OfferCallingPEService {
     @Autowired
     private PEResponseToOfferTransactionResConverter peResponseToOfferTransactionResConverter;
 
-    public OfferTransactionResponse getDiscountedItemList(OfferTransactionRequest offerTransactionRequest){
+    public OfferTransactionResponse getDiscountedItemList(OfferTransactionRequest offerTransactionRequest) {
         OfferTransactionResponse offerTransactionResponse = null;
-        CompletableFuture<PEResponse> peResponseCompletableFuture = offerDao.callPE(offerConverter.apply(offerTransactionRequest));
-        try {
-           PEResponse peResponse = peResponseCompletableFuture.get();
-           offerTransactionResponse = peResponseToOfferTransactionResConverter.apply(peResponse);
-           return offerTransactionResponse;
-        } catch (InterruptedException e) {
-            e.printStackTrace();
-        } catch (ExecutionException e) {
-            e.printStackTrace();
-        }
+        PEResponse peResponse = offerDao.callPE(offerConverter.apply(offerTransactionRequest));
+        offerTransactionResponse = peResponseToOfferTransactionResConverter.apply(peResponse);
         return offerTransactionResponse;
     }
 }

src/test/java/com/nisum/offertransactionservice/OffertransactionserviceApplicationTests.java

-package com.nisum.offertransactionservice;
-
-import org.junit.jupiter.api.Test;
-import org.springframework.boot.test.context.SpringBootTest;
-
-@SpringBootTest
-class OffertransactionserviceApplicationTests {
-
-	@Test
-	void contextLoads() {
-	}
-
-}