rename project, format

spring-boot-modules/spring-boot-validation/src/main/java/com/baeldung/spring/servicevalidation/SpringServiceLayerValidationApp.java

@@ -0,0 +1,13 @@
+package com.baeldung.spring.servicevalidation;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SpringServiceLayerValidationApp {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SpringServiceLayerValidationApp.class, args);
+    }
+
+}

spring-boot-modules/spring-boot-validation/src/main/java/com/baeldung/spring/servicevalidation/controller/UserAccountController.java

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+package com.baeldung.spring.servicevalidation.controller;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.baeldung.spring.servicevalidation.domain.UserAccount;
+import com.baeldung.spring.servicevalidation.service.UserAccountService;
+
+@RestController
+public class UserAccountController {
+
+    @Autowired
+    private UserAccountService service;
+
+    @PostMapping("/addUserAccount")
+    public Object addUserAccount(@RequestBody UserAccount userAccount) {
+        return service.addUserAccount(userAccount);
+    }
+
+}

spring-boot-modules/spring-boot-validation/src/main/java/com/baeldung/spring/servicevalidation/dao/UserAccountDao.java

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+package com.baeldung.spring.servicevalidation.dao;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.springframework.stereotype.Service;
+
+import com.baeldung.spring.servicevalidation.domain.UserAccount;
+
+@Service
+public class UserAccountDao {
+
+    private Map<String, UserAccount> DB = new HashMap<String, UserAccount>();
+
+    public String addUserAccount(UserAccount useraccount) {
+        DB.put(useraccount.getName(), useraccount);
+        return "success";
+    }
+
+    public Collection<UserAccount> getAllUserAccounts() {
+
+        Collection<UserAccount> list = DB.values();
+        if (list.isEmpty()) {
+            list.addAll(DB.values());
+        }
+        return list;
+
+    }
+
+}

spring-boot-modules/spring-boot-validation/src/main/java/com/baeldung/spring/servicevalidation/domain/UserAccount.java

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+package com.baeldung.spring.servicevalidation.domain;
+
+import javax.validation.Valid;
+import javax.validation.constraints.Min;
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.NotNull;
+import javax.validation.constraints.Size;
+
+public class UserAccount {
+
+    @NotNull(message = "Password must be between 4 to 15 characters")
+    @Size(min = 4, max = 15)
+    private String password;
+
+    @NotBlank(message = "Name must not be blank")
+    private String name;
+
+    @Min(value = 18, message = "Age should not be less than 18")
+    private int age;
+
+    @NotBlank(message = "Phone must not be blank")
+    private String phone;
+
+    @Valid
+    @NotNull(message = "UserAddress must not be blank")
+    private UserAddress useraddress;
+
+    public UserAddress getUseraddress() {
+        return useraddress;
+    }
+
+    public void setUseraddress(UserAddress useraddress) {
+        this.useraddress = useraddress;
+    }
+
+    public UserAccount() {
+
+    }
+
+    public UserAccount(String email, String password, String name, int age) {
+        this.password = password;
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    public int getAge() {
+        return age;
+    }
+
+    public void setAge(int age) {
+        this.age = age;
+    }
+
+    public String getPhone() {
+        return phone;
+    }
+
+    public void setPhone(String phone) {
+        this.phone = phone;
+    }
+
+}

spring-boot-modules/spring-boot-validation/src/main/java/com/baeldung/spring/servicevalidation/domain/UserAddress.java

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+package com.baeldung.spring.servicevalidation.domain;
+
+import javax.validation.constraints.NotBlank;
+
+public class UserAddress {
+
+    @NotBlank
+    private String countryCode;
+
+    public String getCountryCode() {
+        return countryCode;
+    }
+
+    public void setCountryCode(String countryCode) {
+        this.countryCode = countryCode;
+    }
+
+}

spring-boot-modules/spring-boot-validation/src/main/java/com/baeldung/spring/servicevalidation/service/UserAccountService.java

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+package com.baeldung.spring.servicevalidation.service;
+
+import java.util.Set;
+
+import javax.validation.ConstraintViolation;
+import javax.validation.ConstraintViolationException;
+import javax.validation.Validator;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.baeldung.spring.servicevalidation.dao.UserAccountDao;
+import com.baeldung.spring.servicevalidation.domain.UserAccount;
+
+@Service
+public class UserAccountService {
+
+    @Autowired
+    private Validator validator;
+
+    @Autowired
+    private UserAccountDao dao;
+
+    public String addUserAccount(UserAccount useraccount) {
+
+        Set<ConstraintViolation<UserAccount>> violations = validator.validate(useraccount);
+
+        if (!violations.isEmpty()) {
+            StringBuilder sb = new StringBuilder();
+            for (ConstraintViolation<UserAccount> constraintViolation : violations) {
+                sb.append(constraintViolation.getMessage());
+            }
+
+            dao.addUserAccount(useraccount);
+
+            throw new ConstraintViolationException("Error occurred: " + sb.toString(), violations);
+        }
+
+        return "Account for " + useraccount.getName() + " Added!";
+    }
+
+}