/cdmlib-remote/src/main/java/eu/etaxonomy/cdm/remote/controller/util/MediaToolbox.java - Diff - EDIT - EDIT Project Management

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Revision 8165e2b9

Added by Andreas Kohlbecker almost 4 years ago

ID 8165e2b988fc9f01431fdb81c414308fbfa11c25
Parent 20de2ce5
Child 5ccd238c

ref #9134 no longer storing DefaultMediaTransformations in the db, better exception handling and more documentation

     import org.apache.log4j.Logger;
     import org.springframework.beans.factory.annotation.Autowired;
     import org.springframework.stereotype.Component;
     import com.fasterxml.jackson.core.JsonProcessingException;
     import com.fasterxml.jackson.databind.JsonMappingException;
-...
     import com.fasterxml.jackson.databind.type.CollectionType;
     import eu.etaxonomy.cdm.api.service.IPreferenceService;
     import eu.etaxonomy.cdm.api.service.media.DefaultMediaTransformations;
     import eu.etaxonomy.cdm.api.service.media.MediaUriTransformation;
     import eu.etaxonomy.cdm.api.service.media.MediaUriTransformationProcessor;
     import eu.etaxonomy.cdm.api.service.media.SearchReplace;
     import eu.etaxonomy.cdm.model.media.Media;
     import eu.etaxonomy.cdm.model.media.MediaRepresentation;
     import eu.etaxonomy.cdm.model.media.MediaRepresentationPart;
-...
     import eu.etaxonomy.cdm.model.metadata.PreferenceSubject;
     /**
      * See {@link MediaUriTransformationProcessor} and {@link MediaUriTransformation}
      * Utility service which which creates volatile object which must not be persisted.
      * <p>
      * By now this class provides methods for filtering {@link Media} and  {@link MediaRepresentation}s
      * <p>
      * See also {@link MediaUriTransformationProcessor} and {@link MediaUriTransformation}
+     *
      * @author a.kohlbecker
      * @since Jul 8, 2020
      */
     @Component // not used for component scan, see eu.etaxonomy.cdm.remote.config.CdmRemoteConfiguration
     public class MediaToolbox implements IMediaToolbox {
         private static final String SYS_PROP_MEDIA_REPRESENTATION_TRANSFORMATIONS_RESET = "mediaRepresentationTransformationsReset";
         private static final Logger logger = Logger.getLogger(MediaToolbox.class);
         private List<MediaUriTransformation> transformations = null;
-...
         @Override
         public List<Media> processAndFilterPreferredMediaRepresentations(Class<? extends MediaRepresentationPart> type, String[] mimeTypes,
                 Integer widthOrDuration, Integer height, Integer size, List<Media> galleryMedia) {
                 Integer widthOrDuration, Integer height, Integer size, List<Media> mediaList) {
             MediaUriTransformationProcessor mediaTransformationProcessor = new MediaUriTransformationProcessor();
             mediaTransformationProcessor.addAll(readTransformations());
             for(Media media : galleryMedia) {
             for(Media media : mediaList) {
                 List<MediaRepresentation> newRepr = new ArrayList<>();
                 for(MediaRepresentation repr : media.getRepresentations()) {
                     for(MediaRepresentationPart part : repr.getParts()) {
-...
+                }
                 media.getRepresentations().addAll(newRepr);
+            }
             return filterPreferredMediaRepresentations(type, mimeTypes, widthOrDuration, height, size, galleryMedia);
             return filterPreferredMediaRepresentations(mediaList, type, mimeTypes, widthOrDuration, height, size);
+        }
         @Override
-...
             return MediaUtils.findBestMatchingRepresentation(media, type, size, height, widthOrDuration, mimeTypes,
                     missingValStrategy);
+        }
         @Override
         public List<Media> filterPreferredMediaRepresentations(Class<? extends MediaRepresentationPart> type, String[] mimeTypes,
                 Integer widthOrDuration, Integer height, Integer size, List<Media> galleryMedia) {
         public List<Media> filterPreferredMediaRepresentations(List<Media> mediaList, Class<? extends MediaRepresentationPart> type,
                 String[] mimeTypes, Integer widthOrDuration, Integer height, Integer size) {
             Map<Media, MediaRepresentation> mediaRepresentationMap = MediaUtils.findPreferredMedia(
                     galleryMedia, type, mimeTypes, widthOrDuration, height, size, MediaUtils.MissingValueStrategy.MAX);
             Map<Media, MediaRepresentation> mediaRepresentationMap = MediaUtils.findPreferredMedia(mediaList, type, mimeTypes, widthOrDuration, height, size, MediaUtils.MissingValueStrategy.MAX);
             List<Media> filteredMedia = new ArrayList<>(mediaRepresentationMap.size());
             for (Media media : mediaRepresentationMap.keySet()) {
-...
             return filteredMedia;
+        }
         /**
          * Read the {@link MediaUriTransformation MediaUriTransformations} from the cdm preferences ({@link PreferencePredicate.MediaRepresentationTransformations}
          * or use the default defined in {@link DefaultMediaTransformations#digilib()}
+         *
          */
         private List<MediaUriTransformation> readTransformations() {
             //System.setProperty(SYS_PROP_MEDIA_REPRESENTATION_TRANSFORMATIONS_RESET, "1");
             PrefKey key = CdmPreference.NewKey(PreferenceSubject.NewDatabaseInstance(), PreferencePredicate.MediaRepresentationTransformations);
             CdmPreference pref = preferenceService.find(key);
             if(pref != null && pref.getValue() != null) {
                 if(System.getProperty(SYS_PROP_MEDIA_REPRESENTATION_TRANSFORMATIONS_RESET) == null
                         || mediaRepresentationTransformationsLastHash == null
                         || mediaRepresentationTransformationsLastHash != pref.getValue().hashCode()) {
                 if(mediaRepresentationTransformationsLastHash == null || mediaRepresentationTransformationsLastHash != pref.getValue().hashCode()) {
                     // loaded value is different from last value
                     ObjectMapper mapper = new ObjectMapper();
                     CollectionType javaType = mapper.getTypeFactory()
-...
+                    }
+                }
+            }
             if(transformations == null || System.getProperty(SYS_PROP_MEDIA_REPRESENTATION_TRANSFORMATIONS_RESET) != null) {
                 transformations = new ArrayList<>();
                 MediaUriTransformation tr1 = new MediaUriTransformation();
                 tr1.setPathQueryFragment(new SearchReplace("digilib/Scaler/IIIF/([^\\!]+)\\!([^\\/]+)(.*)", "digilib/Scaler/IIIF/$1!$2/full/!200,200/0/default.jpg"));
                 tr1.setHost(new SearchReplace("pictures.bgbm.org", "pictures.bgbm.org")); // host part only used for matching, no replace!
                 tr1.setMimeType("image/jpeg");
                 tr1.setWidth(200);
                 tr1.setHeight(200);
                 MediaUriTransformation tr2 = new MediaUriTransformation();
                 tr2.setPathQueryFragment(new SearchReplace("digilib/Scaler/IIIF/([^\\!]+)\\!([^\\/]+)(.*)", "digilib/Scaler/IIIF/$1!$2/full/!400,400/0/default.jpg"));
                 tr2.setHost(new SearchReplace("pictures.bgbm.org", "pictures.bgbm.org")); // host part only used for matching, no replace!
                 tr2.setMimeType("image/jpeg");
                 tr2.setWidth(400);
                 tr2.setHeight(400);
                 MediaUriTransformation tr3 = new MediaUriTransformation();
                 tr3.setPathQueryFragment(new SearchReplace("digilib/Scaler/\\?fn=([^\\\\/]+)/(\\w+)(.*)", "digilib/Scaler/IIIF/$1!$2/full/!400,400/0/default.jpg"));
                 tr3.setHost(new SearchReplace("pictures.bgbm.org", "pictures.bgbm.org")); // host part only used for matching, no replace!
                 tr3.setMimeType("image/jpeg");
                 tr3.setWidth(400);
                 tr3.setHeight(400);
                 MediaUriTransformation tr4 = new MediaUriTransformation();
                 tr4.setPathQueryFragment(new SearchReplace("digilib/Scaler/\\?fn=([^\\\\/]+)/(\\w+)(.*)", "digilib/Scaler/IIIF/$1!$2/full/!200,200/0/default.jpg"));
                 tr4.setHost(new SearchReplace("pictures.bgbm.org", "pictures.bgbm.org")); // host part only used for matching, no replace!
                 tr4.setMimeType("image/jpeg");
                 tr4.setWidth(200);
                 tr4.setHeight(200);
                 transformations.add(tr1);
                 transformations.add(tr2);
                 transformations.add(tr3);
                 transformations.add(tr4);
                 ObjectMapper mapper = new ObjectMapper();
                 CollectionType javaType = mapper.getTypeFactory()
                         .constructCollectionType(List.class, MediaUriTransformation.class);
                 try {
                     String json = mapper.writerFor(javaType).writeValueAsString(transformations);
                     pref = CdmPreference.NewDatabaseInstance(PreferencePredicate.MediaRepresentationTransformations, json);
                     preferenceService.set(pref);
                 } catch (JsonProcessingException e) {
                     logger.error(e);
+                }
             if(transformations == null) {
                 transformations = DefaultMediaTransformations.digilib();
+            }
             return transformations;
+        }
         /**
          * @param trans the list of MediaUriTransformation to be serialized
          * @return the JSON string
          * @throws JsonProcessingException
          */
         static protected String transformationsToJson(List<MediaUriTransformation> trans) throws JsonProcessingException {
           ObjectMapper mapper = new ObjectMapper();
           CollectionType javaType = mapper.getTypeFactory()
                   .constructCollectionType(List.class, MediaUriTransformation.class);
           String json = mapper.writerFor(javaType).withDefaultPrettyPrinter().writeValueAsString(trans);
           return json;
+        }
         /**
+         *
          * @param args
          * @throws JsonProcessingException
          */
         public static void main(String[] args) throws JsonProcessingException {
             System.out.println("Default tansformations for digilib");
             System.out.println("========================================");
             System.out.println(transformationsToJson(DefaultMediaTransformations.digilib()));
+        }
+    }

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Revision 8165e2b9

Added by Andreas Kohlbecker almost 4 years ago

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Revision 8165e2b9

Added by Andreas Kohlbecker almost 4 years ago

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