Set up picture upload mechanism.

codiki-exposition/src/main/java/org/codiki/exposition/picture/MultipartFileConverter.java

@@ -0,0 +1,28 @@
+package org.codiki.exposition.picture;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.UUID;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Component;
+import org.springframework.web.multipart.MultipartFile;
+
+@Component
+public class MultipartFileConverter {
+    private final String tempPicturesForlderPath;
+
+    public MultipartFileConverter(@Value("${application.pictures.temp-path}") String tempPicturesForlderPath) {
+        this.tempPicturesForlderPath = tempPicturesForlderPath;
+    }
+
+    public File transformToFile(MultipartFile fileContent) {
+        File pictureFile = new File(String.format("%s/%s", tempPicturesForlderPath, UUID.randomUUID()));
+        try {
+            fileContent.transferTo(pictureFile);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+        return pictureFile;
+    }
+}

codiki-exposition/src/main/java/org/codiki/exposition/picture/PictureController.java

@@ -0,0 +1,35 @@
+package org.codiki.exposition.picture;
+
+import java.io.File;
+import java.util.UUID;
+
+import static org.springframework.http.MediaType.MULTIPART_FORM_DATA_VALUE;
+import org.codiki.application.picture.PictureUseCases;
+import org.codiki.domain.picture.model.Picture;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.multipart.MultipartFile;
+
+@RestController
+@RequestMapping("/api/pictures")
+public class PictureController {
+    private final MultipartFileConverter multipartFileConverter;
+    private final PictureUseCases pictureUseCases;
+
+    public PictureController(
+        MultipartFileConverter multipartFileConverter,
+        PictureUseCases pictureUseCases
+    ) {
+        this.multipartFileConverter = multipartFileConverter;
+        this.pictureUseCases = pictureUseCases;
+    }
+
+    @PostMapping(consumes = MULTIPART_FORM_DATA_VALUE)
+    public UUID uploadPicture(@RequestParam("file") MultipartFile fileContent) {
+        File pictureFile = multipartFileConverter.transformToFile(fileContent);
+        Picture newPicture = pictureUseCases.createPicture(pictureFile);
+        return newPicture.id();
+    }
+}