Make height/width nullable; add support for reading svgs; better error handling.

build.gradle

@@ -69,6 +69,12 @@ dependencies {
     // https://mvnrepository.com/artifact/com.twelvemonkeys.imageio/imageio-webp
     runtimeOnly 'com.twelvemonkeys.imageio:imageio-webp:3.12.0'
 
+    // https://mvnrepository.com/artifact/com.twelvemonkeys.imageio/imageio-batik
+    runtimeOnly 'com.twelvemonkeys.imageio:imageio-batik:3.12.0'
+
+    // https://mvnrepository.com/artifact/org.apache.xmlgraphics/batik-all
+    runtimeOnly 'org.apache.xmlgraphics:batik-all:1.19'
+
 	compileOnly 'org.jetbrains:annotations:24.1.0'
 
 	// Custom testing

src/main/java/app/mealsmadeeasy/api/image/Image.java

@@ -16,7 +16,7 @@ public interface Image {
     @Nullable String getCaption();
     User getOwner();
     boolean isPublic();
-    int getHeight();
+    @Nullable Integer getHeight();
-    int getWidth();
+    @Nullable Integer getWidth();
     Set<User> getViewers();
 }

src/main/java/app/mealsmadeeasy/api/image/ImageException.java

@@ -6,7 +6,7 @@ public class ImageException extends Exception {
         INVALID_ID,
         INVALID_USERNAME_OR_FILENAME,
         IMAGE_NOT_FOUND,
-        UNKNOWN_MIME_TYPE
+        UNSUPPORTED_IMAGE_TYPE,
     }
 
     private final Type type;

src/main/java/app/mealsmadeeasy/api/image/S3ImageEntity.java

@@ -35,11 +35,9 @@ public class S3ImageEntity implements Image {
     @Column(nullable = false)
     private String objectName;
 
-    @Column(nullable = false)
+    private Integer height;
-    private int height;
 
-    @Column(nullable = false)
+    private Integer width;
-    private int width;
 
     @ManyToOne(optional = false)
     @JoinColumn(name = "owner_id", nullable = false)
@@ -123,20 +121,20 @@ public class S3ImageEntity implements Image {
     }
 
     @Override
-    public int getHeight() {
+    public @Nullable Integer getHeight() {
         return this.height;
     }
 
-    public void setHeight(int height) {
+    public void setHeight(Integer height) {
         this.height = height;
     }
 
     @Override
-    public int getWidth() {
+    public @Nullable Integer getWidth() {
         return this.width;
     }
 
-    public void setWidth(int width) {
+    public void setWidth(Integer width) {
         this.width = width;
     }
 

src/main/java/app/mealsmadeeasy/api/image/S3ImageService.java

@@ -7,8 +7,6 @@ import app.mealsmadeeasy.api.s3.S3Manager;
 import app.mealsmadeeasy.api.user.User;
 import app.mealsmadeeasy.api.user.UserEntity;
 import org.jetbrains.annotations.Nullable;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.security.access.prepost.PostAuthorize;
 import org.springframework.security.access.prepost.PreAuthorize;
@@ -16,6 +14,8 @@ import org.springframework.stereotype.Service;
 
 import javax.imageio.ImageIO;
 import java.awt.image.BufferedImage;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.time.LocalDateTime;
@@ -27,7 +27,11 @@ import java.util.regex.Pattern;
 public class S3ImageService implements ImageService {
 
     private static final Pattern extensionPattern = Pattern.compile(".+\\.(.+)$");
-    private static final Logger logger = LoggerFactory.getLogger(S3ImageService.class);
+
+    private static final String IMAGE_JPEG =  "image/jpeg";
+    private static final String IMAGE_PNG = "image/png";
+    private static final String IMAGE_SVG = "image/svg+xml";
+    private static final String IMAGE_WEBP = "image/webp";
 
     private final S3Manager s3Manager;
     private final S3ImageRepository imageRepository;
@@ -51,10 +55,10 @@ public class S3ImageService implements ImageService {
         if (m.matches()) {
             final String extension = m.group(1);
             return switch (extension) {
-                case "jpg", "jpeg" -> "image/jpeg";
+                case "jpg", "jpeg" -> IMAGE_JPEG;
-                case "png" -> "image/png";
+                case "png" -> IMAGE_PNG;
-                case "svg" -> "image/svg+xml";
+                case "svg" -> IMAGE_SVG;
-                case "webp" -> "image/webp";
+                case "webp" -> IMAGE_WEBP;
                 default -> throw new IllegalArgumentException("Cannot determine mime type for extension: " + extension);
             };
         } else {
@@ -64,13 +68,13 @@ public class S3ImageService implements ImageService {
 
     private String getExtension(String mimeType) throws ImageException {
         return switch (mimeType) {
-            case "image/jpeg" -> "jpg";
+            case IMAGE_JPEG -> "jpg";
-            case "image/png" -> "png";
+            case IMAGE_PNG -> "png";
-            case "image/svg+xml" -> "svg";
+            case IMAGE_SVG -> "svg";
-            case "image/webp" -> "webp";
+            case IMAGE_WEBP -> "webp";
             default -> throw new ImageException(
-                    ImageException.Type.UNKNOWN_MIME_TYPE,
+                    ImageException.Type.UNSUPPORTED_IMAGE_TYPE,
-                    "Unknown mime type: " + mimeType
+                    "Unsupported mime type: " + mimeType
             );
         };
     }
@@ -101,6 +105,18 @@ public class S3ImageService implements ImageService {
         return didTransfer;
     }
 
+    /**
+     * @apiNote Consumes and closes the {@link java.io.InputStream}.
+     *
+     * @param owner the User owner
+     * @param userFilename the name of the uploaded file from the user
+     * @param inputStream the image content
+     * @param objectSize the size of the image, in bytes
+     * @param createSpec the metadata for the image
+     * @return an {@link app.mealsmadeeasy.api.image.Image} representing the stored image
+     * @throws IOException if there are any errors related to IO while storing the image
+     * @throws ImageException if there are any errors processing the image
+     */
     @Override
     public Image create(
             User owner,
@@ -113,19 +129,29 @@ public class S3ImageService implements ImageService {
         final String uuid = UUID.randomUUID().toString();
         final String extension = this.getExtension(mimeType);
         final String filename = uuid + "." + extension;
+
+        final var baos = new ByteArrayOutputStream();
+        inputStream.transferTo(baos);
+        final InputStream toStore = new ByteArrayInputStream(baos.toByteArray());
+        final InputStream toRead =  new ByteArrayInputStream(baos.toByteArray());
+
         final String objectName = this.s3Manager.store(
-                this.imageBucketName, filename, mimeType, inputStream, objectSize
+                this.imageBucketName, filename, mimeType, toStore, objectSize
         );
 
-        final int height, width;
+        final BufferedImage bufferedImage = ImageIO.read(toRead);
-        try (final InputStream imageContent = this.s3Manager.load(this.imageBucketName, objectName)) {
-            final BufferedImage bufferedImage = ImageIO.read(imageContent);
         if (bufferedImage == null) {
-                logger.error("ImageIO could not read image: {} ({})", userFilename, objectName);
+            throw new ImageException(
-            }
+                    ImageException.Type.UNSUPPORTED_IMAGE_TYPE,
-            height = bufferedImage.getHeight();
+                    "ImageIO could not read image: " + userFilename
-            width = bufferedImage.getWidth();
+            );
         }
+        final int height = bufferedImage.getHeight();
+        final int width = bufferedImage.getWidth();
+
+        toRead.close();
+        toStore.close();
+        inputStream.close();
 
         final S3ImageEntity draft = new S3ImageEntity();
         draft.setOwner((UserEntity) owner);

src/main/java/app/mealsmadeeasy/api/image/view/ImageView.java

@@ -41,8 +41,8 @@ public class ImageView {
     private @Nullable String caption;
     private UserInfoView owner;
     private boolean isPublic;
-    private int height;
+    private @Nullable Integer height;
-    private int width;
+    private @Nullable Integer width;
     private @Nullable Set<UserInfoView> viewers;
 
     public String getUrl() {
@@ -117,19 +117,19 @@ public class ImageView {
         this.isPublic = isPublic;
     }
 
-    public int getHeight() {
+    public @Nullable Integer getHeight() {
         return this.height;
     }
 
-    public void setHeight(int height) {
+    public void setHeight(Integer height) {
         this.height = height;
     }
 
-    public int getWidth() {
+    public @Nullable Integer getWidth() {
         return this.width;
     }
 
-    public void setWidth(int width) {
+    public void setWidth(Integer width) {
         this.width = width;
     }