From 98a1901f3a103d22b1639601beb5dcc216199aa0 Mon Sep 17 00:00:00 2001
From: Kurt92 <chcch1234@gmail.com>
Date: Thu, 11 Dec 2025 17:23:51 +0900
Subject: [PATCH] =?UTF-8?q?feat=20:=20Map=20->=20DTO=20=EC=BB=A8=EB=B2=84?=
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MIME-Version: 1.0
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---
 .../exception/DtoConvertException.java        |  7 +++
 .../java/egovframework/util/DtoConverter.java | 53 +++++++++++++++++++
 2 files changed, 60 insertions(+)
 create mode 100644 src/main/java/egovframework/exception/DtoConvertException.java
 create mode 100644 src/main/java/egovframework/util/DtoConverter.java

diff --git a/src/main/java/egovframework/exception/DtoConvertException.java b/src/main/java/egovframework/exception/DtoConvertException.java
new file mode 100644
index 0000000..9d7a682
--- /dev/null
+++ b/src/main/java/egovframework/exception/DtoConvertException.java
@@ -0,0 +1,7 @@
+package egovframework.exception;
+
+public class DtoConvertException extends RuntimeException {
+    public DtoConvertException(String message, Throwable cause) {
+        super(message, cause);
+    }
+}
diff --git a/src/main/java/egovframework/util/DtoConverter.java b/src/main/java/egovframework/util/DtoConverter.java
new file mode 100644
index 0000000..56fbb88
--- /dev/null
+++ b/src/main/java/egovframework/util/DtoConverter.java
@@ -0,0 +1,53 @@
+package egovframework.util;
+
+import com.fasterxml.jackson.databind.DeserializationFeature;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectReader;
+import egovframework.exception.DtoConvertException;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Component;
+
+import java.io.IOException;
+import java.util.Map;
+
+@Component
+@RequiredArgsConstructor
+public class DtoConverter {
+
+    private final ObjectMapper objectMapper;
+
+    /**
+     * Map<String, Object> → DTO 변환
+     * unknown 필드 허용
+     */
+    public <T> T toDto(Map<String, Object> body, Class<T> clazz) {
+        return toDto(body, clazz, false);
+    }
+
+
+
+
+    /**
+     * strict모드 가독 헬퍼
+     * */
+    public <T> T toStrictDto(Map<String, Object> body, Class<T> clazz) {
+        return toDto(body, clazz, true);
+    }
+
+    /**
+     * Map<String, Object> → DTO 변환
+     * @param strict true > unknown 필드에 대한 예외 발생
+     */
+    public <T> T toDto(Map<String, Object> body, Class<T> clazz, boolean strict) {
+        try {
+            ObjectReader reader = objectMapper.readerFor(clazz);
+            if (strict) {
+                reader = reader.with(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
+            }
+            return reader.readValue(objectMapper.writeValueAsBytes(body));
+        } catch (IOException e) {
+            throw new DtoConvertException("DTO 변환 실패: " + clazz.getSimpleName(), e);
+        }
+    }
+
+}