cdmlib-services/src/main/java/eu/etaxonomy/cdm/api/service/media/MediaInfoFactory.java

   1 /**
   2 * Copyright (C) 2021 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9 package eu.etaxonomy.cdm.api.service.media;
  10
  11 import java.io.IOException;
  12 import java.util.ArrayList;
  13 import java.util.List;
  14
  15 import org.apache.http.HttpException;
  16 import org.springframework.stereotype.Component;
  17
  18 import eu.etaxonomy.cdm.common.URI;
  19 import eu.etaxonomy.cdm.common.media.CdmImageInfo;
  20
  21 /**
  22  * @author a.kohlbecker
  23  * @since May 5, 2021
  24  */
  25 @Component
  26 public class MediaInfoFactory implements IMediaInfoFactory {
  27
  28     /**
  29      * TODO needs to be managed in CDM PREFERENCES
  30      */
  31     private List<MediaUriTransformation> uriTransformations = new ArrayList<>();
  32
  33
  34     public MediaInfoFactory() {
  35         uriTransformations.add(DefaultMediaTransformations.bgbmMediaMetadataService());
  36     }
  37
  38     /**
  39      * This method only exists due to performance issues for cases when
  40      * the {@link MediaMetadataFileReader} to reduce the overhead imposed by reading
  41      * the image metadata from the file itself.
  42      *
  43      *
  44      * @param imageUri
  45      * @return
  46      * @throws IOException
  47      * @throws HttpException
  48      */
  49     public CdmImageInfo cdmImageInfoWithMetaData(eu.etaxonomy.cdm.common.URI imageUri) throws IOException, HttpException {
  50         return cdmImageInfoWithMetaData(imageUri.getJavaUri());
  51     }
  52
  53     /**
  54      * This method only exists due to performance issues for cases when
  55      * the {@link MediaMetadataFileReader} to reduce the overhead imposed by reading
  56      * the image metadata from the file itself.
  57      *
  58      *
  59      * @param imageUri
  60      * @return
  61      * @throws IOException
  62      * @throws HttpException
  63      */
  64     public CdmImageInfo cdmImageInfoWithMetaData(URI imageUri) throws IOException, HttpException {
  65
  66         // :-) Hooray, we can get the metadata from the web service, this is going to be snappy
  67         MediaUriTransformationProcessor processor = new MediaUriTransformationProcessor();
  68         processor.addAll(uriTransformations);
  69         processor.applyTo(imageUri);
  70
  71         // :-( need to use the files reader
  72         return new MediaMetadataFileReader(imageUri)
  73                .readBaseInfo()
  74                .readMetaData()
  75                .getCdmImageInfo();
  76
  77     }
  78
  79     public CdmImageInfo cdmImageInfo(eu.etaxonomy.cdm.common.URI imageUri) throws IOException, HttpException {
  80         return cdmImageInfo(imageUri.getJavaUri());
  81     }
  82
  83     public CdmImageInfo cdmImageInfo(URI imageUri) throws IOException, HttpException {
  84
  85         // :-) Hooray, we can get the metadata from the web service, this is going to be snappy
  86
  87         // :-( need to use the files reader
  88         return new MediaMetadataFileReader(imageUri)
  89                .readBaseInfo()
  90                .getCdmImageInfo();
  91     }
  92
  93
  94
  95
  96
  97 }