Feat/met 5756 implement new media processor subclass

metis-media-service/src/main/java/eu/europeana/metis/mediaprocessing/extraction/Media3dProcessor.java

@@ -0,0 +1,52 @@
+package eu.europeana.metis.mediaprocessing.extraction;
+
+import eu.europeana.metis.mediaprocessing.exception.MediaExtractionException;
+import eu.europeana.metis.mediaprocessing.model.Resource;
+import eu.europeana.metis.mediaprocessing.model.ResourceExtractionResult;
+import eu.europeana.metis.mediaprocessing.model.ResourceExtractionResultImpl;
+import eu.europeana.metis.mediaprocessing.model.Media3dResourceMetadata;
+import java.io.IOException;
+
+class Media3dProcessor implements MediaProcessor{
+
+  @Override
+  public ResourceExtractionResult extractMetadata(Resource resource, String detectedMimeType, boolean mainThumbnailAvailable)
+      throws MediaExtractionException {
+
+    // Sanity check
+    try {
+      if (!resource.hasContent()) {
+        throw new MediaExtractionException("File does not exist or does not have content.");
+      }
+    } catch (IOException e) {
+      throw new MediaExtractionException("Could not determine whether resource has content.", e);
+    }
+
+    // Get the size of the resource
+    final Long contentSize;
+    try {
+      contentSize = nullIfNegative(resource.getContentSize());
+    } catch (IOException e) {
+      throw new MediaExtractionException(
+          "Could not determine the size of the resource " + resource.getResourceUrl(), e);
+    }
+
+    // Set the metadata in the web resource.
+    final Media3dResourceMetadata resourceMetadata;
+    resourceMetadata = new Media3dResourceMetadata(detectedMimeType, resource.getResourceUrl(), contentSize);
+
+    // Done.
+    return new ResourceExtractionResultImpl(resourceMetadata, null);
+  }
+
+  @Override
+  public ResourceExtractionResult copyMetadata(Resource resource, String detectedMimeType) throws MediaExtractionException {
+    return new ResourceExtractionResultImpl(new Media3dResourceMetadata(detectedMimeType,
+        resource.getResourceUrl(), resource.getProvidedFileSize()));
+  }
+
+  @Override
+  public boolean downloadResourceForFullProcessing() {
+    return true;
+  }
+}

metis-media-service/src/main/java/eu/europeana/metis/mediaprocessing/model/Media3dResourceMetadata.java

@@ -0,0 +1,27 @@
+package eu.europeana.metis.mediaprocessing.model;
+
+import java.util.List;
+
+public class Media3dResourceMetadata extends AbstractResourceMetadata{
+
+  /**
+   * Constructor.
+   *
+   * @param mimeType The resource mime type.
+   * @param resourceUrl The resource URL.
+   * @param contentSize The file content size.
+   * @param thumbnails The thumbnails generated for this text resource.
+   */
+  public Media3dResourceMetadata(String mimeType, String resourceUrl, Long contentSize,
+      List<? extends Thumbnail> thumbnails) {
+    super(mimeType, resourceUrl, contentSize, thumbnails);
+  }
+
+  public Media3dResourceMetadata(String mimeType, String resourceUrl, Long contentSize) {
+    super(mimeType, resourceUrl, contentSize, null);
+  }
+  @Override
+  protected ResourceMetadata prepareForSerialization() {
+    return new ResourceMetadata(this);
+  }
+}

metis-media-service/src/main/java/eu/europeana/metis/mediaprocessing/model/ResourceMetadata.java

@@ -17,6 +17,7 @@ public class ResourceMetadata implements IResourceMetadata {
   private ImageResourceMetadata imageResourceMetadata;
   private TextResourceMetadata textResourceMetadata;
   private VideoResourceMetadata videoResourceMetadata;
+  private Media3dResourceMetadata threeDResourceMetadata;
 
   /**
    * Constructor for audio resources.
@@ -66,6 +67,18 @@ public ResourceMetadata(VideoResourceMetadata videoResourceMetadata) {
     this.videoResourceMetadata = videoResourceMetadata;
   }
 
+  /**
+   * Constructor for 3D resources.
+   *
+   * @param threeDResourceMetadata The resource metadata.
+   */
+  public ResourceMetadata(Media3dResourceMetadata threeDResourceMetadata) {
+    if (threeDResourceMetadata == null) {
+      throw new IllegalArgumentException();
+    }
+    this.threeDResourceMetadata = threeDResourceMetadata;
+  }
+
   /**
    * Constructor. Don't use this: it's required for deserialization.
    */
@@ -82,6 +95,8 @@ AbstractResourceMetadata getMetaData() {
       result = textResourceMetadata;
     } else if (videoResourceMetadata != null) {
       result = videoResourceMetadata;
+    } else if (threeDResourceMetadata != null){
+      result = threeDResourceMetadata;
     } else {
       throw new IllegalStateException();
     }