cdmlib-model/src/main/java/eu/etaxonomy/cdm/strategy/cache/media/MediaDefaultCacheStrategy.java

   1 /**
   2 * Copyright (C) 2009 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
  10 package eu.etaxonomy.cdm.strategy.cache.media;
  11
  12 import java.util.Arrays;
  13 import java.util.List;
  14 import java.util.UUID;
  15
  16 import org.apache.logging.log4j.LogManager;
  17 import org.apache.logging.log4j.Logger;
  18
  19 import eu.etaxonomy.cdm.model.common.CdmBase;
  20 import eu.etaxonomy.cdm.model.common.Language;
  21 import eu.etaxonomy.cdm.model.common.LanguageString;
  22 import eu.etaxonomy.cdm.model.common.MultilanguageTextHelper;
  23 import eu.etaxonomy.cdm.model.media.Media;
  24 import eu.etaxonomy.cdm.model.media.MediaRepresentation;
  25 import eu.etaxonomy.cdm.model.media.MediaRepresentationPart;
  26 import eu.etaxonomy.cdm.strategy.StrategyBase;
  27
  28 public class MediaDefaultCacheStrategy
  29         extends StrategyBase
  30         implements IMediaCacheStrategy {
  31
  32     private static final long serialVersionUID = 7246846028810250751L;
  33     @SuppressWarnings("unused")
  34     private static final Logger logger = LogManager.getLogger();
  35
  36         final static UUID uuid = UUID.fromString("0517ae48-597d-4d6b-9f18-8752d689720d");
  37
  38         public static MediaDefaultCacheStrategy NewInstance() {
  39                 return new MediaDefaultCacheStrategy();
  40         }
  41
  42         @Override
  43         protected UUID getUuid() {
  44                 return uuid;
  45         }
  46
  47         @Override
  48     public String getTitleCache(Media media) {
  49                 media = CdmBase.deproxy(media);
  50                 return getTitleCacheByLanguage(media, Language.DEFAULT());
  51         }
  52
  53         public String getTitleCacheByLanguage(Media media, Language lang) {
  54                 String result;
  55                 List<Language> languages = Arrays.asList(new Language[]{lang});
  56                 LanguageString languageString = MultilanguageTextHelper.getPreferredLanguageString(media.getAllTitles(), languages);
  57                 result = (languageString != null ? languageString.getText() : "");
  58
  59                 if (isBlank(result) && media.getArtist() != null){
  60                     result = media.getArtist().getTitleCache();
  61                 }
  62
  63                 //get first image uri
  64                 if (isBlank(result)){
  65                         for (MediaRepresentation mediaRepresentation : media.getRepresentations()){
  66                                 for (MediaRepresentationPart part : mediaRepresentation.getParts()){
  67                                         result = (part == null || part.getUri() == null) ? null : part.getUri().toString();
  68                                         if (isBlank(result)){
  69                                                 continue;
  70                                         }
  71                                         @SuppressWarnings("null")
  72                     int lastSlashPos = result.lastIndexOf("/");
  73                                         if (lastSlashPos != -1 && lastSlashPos + 1 < result.length()){
  74                                             int lastDotPos = result.lastIndexOf(".");
  75                                             if (lastDotPos == -1 || lastDotPos < lastSlashPos){
  76                                                 result = result.substring(lastSlashPos + 1);
  77                                             }else{
  78                                                 result = result.substring(lastSlashPos + 1, lastDotPos);
  79                                             }
  80                                         }
  81                                         break;
  82                                 }
  83                                 if (! isBlank(result)){
  84                                         break;
  85                                 }
  86                         }
  87                         if (isBlank(result)){
  88                                 result = "- empty media - <" + media.getUuid() + ">";
  89                         }
  90                 }
  91                 return result;
  92         }
  93
  94
  95
  96 }