[Feat] Home API가 값을 반환할 때 Picture 값도 반환하도록 변경, Image 관련 코드를 추가

domain/build.gradle

@@ -24,6 +24,8 @@ dependencies {
     implementation 'io.jsonwebtoken:jjwt-api:0.11.5'
     runtimeOnly 'io.jsonwebtoken:jjwt-impl:0.11.5'
     runtimeOnly 'io.jsonwebtoken:jjwt-jackson:0.11.5'
+
+    implementation 'org.xerial.snappy:snappy-java:1.1.10.5'
 }
 
 bootJar {

domain/src/main/java/com/codingland/domain/home/dto/ResponseHomeDto.java

@@ -5,6 +5,7 @@
 public record ResponseHomeDto(
         //{id, character_id, character_type, character_name}
         Long id,
-        ResponseCharacterDto character
+        ResponseCharacterDto character,
+        String userPicture
 ){
 }

domain/src/main/java/com/codingland/domain/home/service/HomeService.java

@@ -48,7 +48,8 @@ public ResponseHomeDto getHome(Long user_id) {
                         .level(foundHome.getCharacter().getLevel())
                         .type(foundHome.getCharacter().getType())
                         .activityPoints(foundHome.getCharacter().getActivityPoints())
-                        .build()
+                        .build(),
+                foundHome.getUser().getPicture()
         );
     }
 
@@ -68,7 +69,8 @@ public ResponseHomeListDto getHomeList() {
                                 .level(home.getCharacter().getLevel())
                                 .type(home.getCharacter().getType())
                                 .activityPoints(home.getCharacter().getActivityPoints())
-                                .build()
+                                .build(),
+                        home.getUser().getPicture()
                 ))
                 .collect(Collectors.toList());
         return new ResponseHomeListDto(homeDtoList);

domain/src/main/java/com/codingland/domain/image/controller/ImageController.java

@@ -0,0 +1,25 @@
+package com.codingland.domain.image.controller;
+
+import com.codingland.domain.image.service.ImageService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/v1/api/image")
+@RequiredArgsConstructor
+public class ImageController {
+    private final ImageService imageService;
+
+    @GetMapping("/{fileName}")
+    public ResponseEntity<byte[]> download(@PathVariable String fileName) {
+        byte[] downloadImage = imageService.downloadImage(fileName);
+        return ResponseEntity.status(HttpStatus.OK).contentType(MediaType.valueOf("image/png"))
+                .body(downloadImage);
+    }
+}

domain/src/main/java/com/codingland/domain/image/entity/Image.java

@@ -0,0 +1,27 @@
+package com.codingland.domain.image.entity;
+
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class Image {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+    private String name;
+    private String type;
+    @Column(columnDefinition = "MEDIUMBLOB")
+    private byte[] imageData;
+
+    @Builder
+    public Image(String name, String type, byte[] imageData) {
+        this.name = name;
+        this.type = type;
+        this.imageData = imageData;
+    }
+}

domain/src/main/java/com/codingland/domain/image/repository/ImageRepository.java

@@ -0,0 +1,10 @@
+package com.codingland.domain.image.repository;
+
+import com.codingland.domain.image.entity.Image;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.Optional;
+
+public interface ImageRepository extends JpaRepository<Image, Long> {
+    Optional<Image> findByName(String fileName);
+}

domain/src/main/java/com/codingland/domain/image/service/ImageService.java

@@ -0,0 +1,19 @@
+package com.codingland.domain.image.service;
+
+import com.codingland.domain.image.entity.Image;
+import com.codingland.domain.image.repository.ImageRepository;
+import com.codingland.domain.image.utils.ImageUtils;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+@Service
+@RequiredArgsConstructor
+public class ImageService {
+    private final ImageRepository imageRepository;
+
+    public byte[] downloadImage(String fileName) {
+        Image foundImage = imageRepository.findByName(fileName)
+                .orElseThrow(() -> new RuntimeException("test"));
+        return ImageUtils.decompressImage(foundImage.getImageData());
+    }
+}

domain/src/main/java/com/codingland/domain/image/utils/ImageUtils.java

@@ -0,0 +1,18 @@
+package com.codingland.domain.image.utils;
+
+import org.xerial.snappy.Snappy;
+
+import java.io.IOException;
+
+public class ImageUtils {
+    public static byte[] compressImage(byte[] data) throws IOException {
+        return Snappy.compress(data);
+    }
+    public static byte[] decompressImage(byte[] data) {
+        try {
+            return Snappy.uncompress(data);
+        } catch (Exception e) {
+            throw new RuntimeException(e.getMessage());
+        }
+    }
+}