refactor: 예외 응답 함수 추출

Author: nayonsoso

src/main/java/com/example/solidconnection/config/security/JwtAuthenticationEntryPoint.java

@@ -12,7 +12,6 @@
 
 import java.io.IOException;
 
-import static com.example.solidconnection.custom.exception.ErrorCode.ACCESS_TOKEN_EXPIRED;
 import static com.example.solidconnection.custom.exception.ErrorCode.AUTHENTICATION_FAILED;
 
 @Component
@@ -25,24 +24,15 @@ public class JwtAuthenticationEntryPoint implements AuthenticationEntryPoint {
     public void commence(HttpServletRequest request, HttpServletResponse response,
                          AuthenticationException authException) throws IOException {
         ErrorResponse errorResponse = new ErrorResponse(AUTHENTICATION_FAILED, authException.getMessage());
-        response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
-        response.setContentType("application/json");
-        response.setCharacterEncoding("UTF-8");
-        response.getWriter().write(objectMapper.writeValueAsString(errorResponse));
+        writeResponse(response, errorResponse);
     }
 
-    public void expiredCommence(HttpServletRequest request, HttpServletResponse response,
-                                AuthenticationException authException) throws IOException {
-        ErrorResponse errorResponse = new ErrorResponse(new CustomException(ACCESS_TOKEN_EXPIRED));
-        response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
-        response.setContentType("application/json");
-        response.setCharacterEncoding("UTF-8");
-        response.getWriter().write(objectMapper.writeValueAsString(errorResponse));
+    public void customCommence(HttpServletResponse response, CustomException customException) throws IOException {
+        ErrorResponse errorResponse = new ErrorResponse(customException);
+        writeResponse(response, errorResponse);
     }
 
-    public void customCommence(HttpServletRequest request, HttpServletResponse response,
-                               CustomException customException) throws IOException {
-        ErrorResponse errorResponse = new ErrorResponse(customException);
+    private void writeResponse(HttpServletResponse response, ErrorResponse errorResponse) throws IOException {
         response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
         response.setContentType("application/json");
         response.setCharacterEncoding("UTF-8");

src/main/java/com/example/solidconnection/config/security/JwtAuthenticationFilter.java

@@ -68,14 +68,14 @@ protected void doFilterInternal(HttpServletRequest request, HttpServletResponse
             }
         } catch (JwtExpiredTokenException e) {
             SecurityContextHolder.clearContext();
-            jwtAuthenticationEntryPoint.expiredCommence(request, response, e);
+            jwtAuthenticationEntryPoint.commence(request, response, e);
             return;
         } catch (AuthenticationException e) {
             SecurityContextHolder.clearContext();
             jwtAuthenticationEntryPoint.commence(request, response, e);
             return;
         } catch (CustomException e) {
-            jwtAuthenticationEntryPoint.customCommence(request, response, e);
+            jwtAuthenticationEntryPoint.customCommence(response, e);
             return;
         }
         filterChain.doFilter(request, response); // 다음 필터로 요청과 응답 전달