feat: add pointer api

src/main/java/gdsc/pointer/controller/ImageController.java

@@ -2,17 +2,17 @@
 
 import gdsc.pointer.domain.User;
 import gdsc.pointer.dto.request.image.ImageUploadDto;
+import gdsc.pointer.dto.request.image.PointerDto;
 import gdsc.pointer.dto.response.ResultDto;
+import gdsc.pointer.dto.response.image.PointerResponseDto;
 import gdsc.pointer.dto.response.image.PolyResponseDto;
 import gdsc.pointer.service.ImageService;
 
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.multipart.MultipartFile;
 
 import java.util.List;
 
@@ -42,4 +42,10 @@ public ResponseEntity<?> boundingPoly(ImageUploadDto dto) throws Exception {
         PolyResponseDto result = imageService.getImageTextBoundingPoly(dto.getImage());
         return ResponseEntity.ok(ResultDto.res(HttpStatus.OK, "이미지 텍스트 좌표 값 반환", result));
     }
+
+    @PostMapping("pointer")
+    public ResponseEntity<?> pointer(PointerDto dto) throws Exception {
+        PointerResponseDto result = imageService.getWordsWithPointer(dto);
+        return ResponseEntity.ok(ResultDto.res(HttpStatus.OK, "손가락 좌표에 해당하는 단어 반환", result));
+    }
 }

src/main/java/gdsc/pointer/dto/request/image/PointerAIDto.java

@@ -0,0 +1,14 @@
+package gdsc.pointer.dto.request.image;
+
+import lombok.*;
+import org.springframework.web.multipart.MultipartFile;
+
+@Getter
+@Setter
+@NoArgsConstructor()
+@AllArgsConstructor
+public class PointerAIDto {
+    private String imageUrl;
+    private int x;
+    private int y;
+}

src/main/java/gdsc/pointer/dto/request/image/PointerDto.java

@@ -0,0 +1,17 @@
+package gdsc.pointer.dto.request.image;
+
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import org.attoparser.dom.Text;
+import org.springframework.web.multipart.MultipartFile;
+
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@AllArgsConstructor
+public class PointerDto {
+    private MultipartFile file;
+    private int x;
+    private int y;
+}

src/main/java/gdsc/pointer/dto/response/image/PointerResponseDto.java

@@ -0,0 +1,12 @@
+package gdsc.pointer.dto.response.image;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+import java.util.List;
+
+@Getter
+@AllArgsConstructor
+public class PointerResponseDto {
+    private List<String> words;
+}

src/main/java/gdsc/pointer/service/ImageService.java

@@ -4,6 +4,9 @@
 import com.google.cloud.storage.*;
 import com.google.cloud.vision.v1.*;
 import gdsc.pointer.dto.request.image.ImageUrlDto;
+import gdsc.pointer.dto.request.image.PointerAIDto;
+import gdsc.pointer.dto.request.image.PointerDto;
+import gdsc.pointer.dto.response.image.PointerResponseDto;
 import gdsc.pointer.dto.response.image.PolyResponseDto;
 import io.grpc.netty.shaded.io.netty.handler.codec.http.HttpUtil;
 import jakarta.transaction.Transactional;
@@ -14,7 +17,9 @@
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.cloud.gcp.vision.CloudVisionTemplate;
 import org.springframework.context.annotation.PropertySource;
+import org.springframework.core.ParameterizedTypeReference;
 import org.springframework.core.io.UrlResource;
+import org.springframework.http.HttpEntity;
 import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Service;
 import org.springframework.web.client.RestTemplate;
@@ -114,6 +119,44 @@ public PolyResponseDto getImageTextBoundingPoly(MultipartFile file) throws IOExc
         return responseDto.getBody();
     }
 
+    public PointerResponseDto getWordsWithPointer(PointerDto dto) throws IOException {
+
+        // GCS 사진 업로드 후, 공개 이미지 url 반환
+        String image_url = uploadImage(dto.getFile());
+
+        //String image_url = dto.getImageUrl();
+        int x = dto.getX();
+        int y = dto.getY();
+        ResponseEntity<PointerResponseDto> response = postPointer(image_url, x, y);
+        return response.getBody();
+    }
+
+    private ResponseEntity<PointerResponseDto>  postPointer(String url, int x, int y) {
+
+        URI uri = UriComponentsBuilder
+                .fromUriString(aiServerUrl)
+                .path("/image/pointer")
+                .encode()
+                .build()
+                .toUri();
+
+        PointerAIDto pointerAIDto = new PointerAIDto();
+        pointerAIDto.setImageUrl(url);
+        pointerAIDto.setX(x);
+        pointerAIDto.setY(y);
+
+
+        RestTemplate restTemplate = new RestTemplate();
+
+        ResponseEntity<PointerResponseDto> responseEntity = restTemplate.postForEntity(
+                uri, pointerAIDto, PointerResponseDto.class
+        );
+        System.out.println(responseEntity);
+
+        return responseEntity;
+
+    }
+
     private ResponseEntity<PolyResponseDto> postImageBoundingPoly(String url) {
         URI uri = UriComponentsBuilder
                 .fromUriString(aiServerUrl)