[EPE-001] Added a service to get all offers from the database.

build.gradle

@@ -16,6 +16,8 @@ dependencies {
 	implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
 	implementation 'org.springframework.boot:spring-boot-starter-web'
 	runtimeOnly 'com.h2database:h2'
+	compileOnly 'org.projectlombok:lombok'
+	annotationProcessor 'org.projectlombok:lombok'
 	testImplementation('org.springframework.boot:spring-boot-starter-test') {
 		exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
 	}

src/main/java/com/nisum/epe/demo/controller/OfferDemoController.java

+package com.nisum.epe.demo.controller;
+
+
+import com.nisum.epe.demo.model.Offer;
+import com.nisum.epe.demo.service.OfferService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+
+@RestController
+public class OfferDemoController {
+
+    @Autowired
+    private OfferService offerService;
+
+    @GetMapping("/getOffers")
+    public List<Offer> getAllOffers(){
+        return offerService.getAllOffers();
+    }
+}

src/main/java/com/nisum/epe/demo/dao/OfferRepo.java

+package com.nisum.epe.demo.dao;
+
+import com.nisum.epe.demo.model.Offer;
+import org.springframework.data.repository.CrudRepository;
+
+public interface OfferRepo extends CrudRepository<Offer, String> {
+}

src/main/java/com/nisum/epe/demo/model/Offer.java

+package com.nisum.epe.demo.model;
+
+
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import lombok.experimental.FieldDefaults;
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+@FieldDefaults(makeFinal = false,level = AccessLevel.PRIVATE)
+public class Offer {
+
+    String offerId;
+    String offerName;
+    String offerDescription;
+    Integer usageLimit;
+
+}

src/main/java/com/nisum/epe/demo/service/OfferService.java

+package com.nisum.epe.demo.service;
+
+import com.nisum.epe.demo.dao.OfferRepo;
+import com.nisum.epe.demo.model.Offer;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@Service
+public class OfferService {
+
+    @Autowired
+    private OfferRepo offerRepo;
+
+    public List<Offer> getAllOffers() {
+        List<Offer> offers = new ArrayList<>();
+        offerRepo.findAll().forEach(t -> offers.add(t));
+        return offers;
+    }
+}