From 3524112e8eded4d55c27426d9eaccedea2035a14 Mon Sep 17 00:00:00 2001
From: kabi239 <kavyasharma239@gmail.com>
Date: Sun, 12 Jan 2025 01:09:55 +0530
Subject: [PATCH] Implementing UserDetailsServiceImpl and creating
 UserRepository

---
 .../sb_ecom/repository/UserRepository.java    | 11 ++++++++
 .../services/UserDetailsServiceImpl.java      | 25 +++++++++++++++++++
 2 files changed, 36 insertions(+)
 create mode 100644 src/main/java/com/ecommerce/sb_ecom/repository/UserRepository.java
 create mode 100644 src/main/java/com/ecommerce/sb_ecom/security/services/UserDetailsServiceImpl.java

diff --git a/src/main/java/com/ecommerce/sb_ecom/repository/UserRepository.java b/src/main/java/com/ecommerce/sb_ecom/repository/UserRepository.java
new file mode 100644
index 0000000..edd35ca
--- /dev/null
+++ b/src/main/java/com/ecommerce/sb_ecom/repository/UserRepository.java
@@ -0,0 +1,11 @@
+package com.ecommerce.sb_ecom.repository;
+
+import com.ecommerce.sb_ecom.model.User;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.Optional;
+
+public interface UserRepository extends JpaRepository<User, Long> {
+
+    Optional<User> findByUsername(String username);
+}
diff --git a/src/main/java/com/ecommerce/sb_ecom/security/services/UserDetailsServiceImpl.java b/src/main/java/com/ecommerce/sb_ecom/security/services/UserDetailsServiceImpl.java
new file mode 100644
index 0000000..f6166b5
--- /dev/null
+++ b/src/main/java/com/ecommerce/sb_ecom/security/services/UserDetailsServiceImpl.java
@@ -0,0 +1,25 @@
+package com.ecommerce.sb_ecom.security.services;
+
+import com.ecommerce.sb_ecom.model.User;
+import com.ecommerce.sb_ecom.repository.UserRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.security.core.userdetails.UserDetailsService;
+import org.springframework.security.core.userdetails.UsernameNotFoundException;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+public class UserDetailsServiceImpl implements UserDetailsService {
+
+    @Autowired
+    UserRepository userRepository;
+
+    @Override
+    @Transactional
+    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
+        User user = userRepository.findByUsername(username)
+                .orElseThrow(()->new UsernameNotFoundException("User Not Found With Username : "+ username));
+        return UserDetailsImpl.build(user);
+    }
+}