Gatling vs JMeter vs The Grinder

Issue: BAEL-46

testing-modules/load-testing-comparison/src/main/java/com/baeldung/loadtesting/Application.java

@@ -0,0 +1,12 @@
+package com.baeldung.loadtesting;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+}

testing-modules/load-testing-comparison/src/main/java/com/baeldung/loadtesting/RewardsController.java

@@ -0,0 +1,51 @@
+package com.baeldung.loadtesting;
+
+import com.baeldung.loadtesting.model.CustomerRewardsAccount;
+import com.baeldung.loadtesting.model.Transaction;
+import com.baeldung.loadtesting.repository.CustomerRewardsRepository;
+import com.baeldung.loadtesting.repository.TransactionRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.Calendar;
+import java.util.List;
+import java.util.Optional;
+
+@RestController
+public class RewardsController {
+
+    @Autowired
+    private CustomerRewardsRepository customerRewardsRepository;
+
+    @Autowired
+    private TransactionRepository transactionRepository;
+
+    @PostMapping(path="/transactions/add")
+    public @ResponseBody Transaction saveTransactions(@RequestBody Transaction trnsctn){
+        trnsctn.setTransactionDate(Calendar.getInstance().getTime());
+        Transaction result = transactionRepository.save(trnsctn);
+        return result;
+    }
+
+    @GetMapping(path="/transactions/findAll/{rewardId}")
+    public @ResponseBody Iterable<Transaction> getTransactions(@PathVariable Integer rewardId){
+        return transactionRepository.findByCustomerRewardsId(rewardId);
+    }
+
+    @PostMapping(path="/rewards/add")
+    public @ResponseBody CustomerRewardsAccount addRewardsAcount(@RequestBody CustomerRewardsAccount body) {
+        Optional<CustomerRewardsAccount> acct = customerRewardsRepository.findByCustomerId(body.getCustomerId());
+        return !acct.isPresent() ? customerRewardsRepository.save(body) : acct.get();
+    }
+
+    @GetMapping(path="/rewards/find/{customerId}")
+    public @ResponseBody
+    Optional<CustomerRewardsAccount> find(@PathVariable Integer customerId) {
+        return customerRewardsRepository.findByCustomerId(customerId);
+    }
+
+    @GetMapping(path="/rewards/all")
+    public @ResponseBody List<CustomerRewardsAccount> findAll() {
+        return customerRewardsRepository.findAll();
+    }
+}

testing-modules/load-testing-comparison/src/main/java/com/baeldung/loadtesting/TransactionController.java

@@ -0,0 +1,26 @@
+package com.baeldung.loadtesting;
+
+import com.baeldung.loadtesting.model.Transaction;
+import com.baeldung.loadtesting.repository.TransactionRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@Deprecated
+public class TransactionController {
+
+    @Autowired
+    private TransactionRepository transactionRepository;
+
+    @PostMapping(path="/addTransaction")
+    public @ResponseBody
+    String saveTransactions(@RequestBody Transaction trnsctn){
+        transactionRepository.save(trnsctn);
+        return "Saved Transaction.";
+    }
+
+    @GetMapping(path="/findAll/{rewardId}")
+    public @ResponseBody Iterable<Transaction> getTransactions(@RequestParam Integer id){
+        return transactionRepository.findByCustomerRewardsId(id);
+    }
+}

testing-modules/load-testing-comparison/src/main/java/com/baeldung/loadtesting/model/CustomerRewardsAccount.java

@@ -0,0 +1,22 @@
+package com.baeldung.loadtesting.model;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+
+import lombok.Data;
+
+@Entity
+@Data
+public class CustomerRewardsAccount {
+
+    @Id
+    @GeneratedValue(strategy= GenerationType.AUTO)
+    private Integer id;
+    private Integer customerId;
+
+    public Integer getCustomerId(){
+        return this.customerId;
+    }
+}

testing-modules/load-testing-comparison/src/main/java/com/baeldung/loadtesting/model/Transaction.java

@@ -0,0 +1,30 @@
+package com.baeldung.loadtesting.model;
+
+import lombok.Data;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import java.util.Date;
+import java.util.Calendar;
+
+@Entity
+@Data
+public class Transaction {
+
+    @Id
+    @GeneratedValue(strategy= GenerationType.AUTO)
+    private Integer id;
+    private Integer customerRewardsId;
+    private Integer customerId;
+    private Date transactionDate;
+
+    public Transaction(){
+        transactionDate = Calendar.getInstance().getTime();
+    }
+
+    public void setTransactionDate(Date transactionDate){
+        this.transactionDate = transactionDate;
+    }
+}

testing-modules/load-testing-comparison/src/main/java/com/baeldung/loadtesting/repository/CustomerRewardsRepository.java

@@ -0,0 +1,11 @@
+package com.baeldung.loadtesting.repository;
+
+import com.baeldung.loadtesting.model.CustomerRewardsAccount;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.Optional;
+
+public interface CustomerRewardsRepository extends JpaRepository<CustomerRewardsAccount, Integer> {
+
+    Optional<CustomerRewardsAccount> findByCustomerId(Integer customerId);
+}

testing-modules/load-testing-comparison/src/main/java/com/baeldung/loadtesting/repository/TransactionRepository.java

@@ -0,0 +1,11 @@
+package com.baeldung.loadtesting.repository;
+
+import com.baeldung.loadtesting.model.Transaction;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.List;
+
+public interface TransactionRepository extends JpaRepository<Transaction, Integer> {
+
+    List<Transaction> findByCustomerRewardsId(Integer rewardsId);
+}