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.commons.lang.StringUtils;
  17 import org.apache.log4j.Logger;
  18
  19 import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
  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 import eu.etaxonomy.cdm.strategy.cache.common.IIdentifiableEntityCacheStrategy;
  28
  29 public class MediaDefaultCacheStrategy extends StrategyBase implements IIdentifiableEntityCacheStrategy<Media> {
  30     private static final long serialVersionUID = 7246846028810250751L;
  31
  32     protected static final  Logger logger = Logger.getLogger(MediaDefaultCacheStrategy.class);
  33
  34         final static UUID uuid = UUID.fromString("0517ae48-597d-4d6b-9f18-8752d689720d");
  35
  36
  37         public static MediaDefaultCacheStrategy NewInstance() {
  38                 return new MediaDefaultCacheStrategy();
  39         }
  40
  41         @Override
  42         protected UUID getUuid() {
  43                 return uuid;
  44         }
  45
  46
  47         @Override
  48     public String getTitleCache(Media media) {
  49                 media = HibernateProxyHelper.deproxy(media, Media.class);
  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                 //get first image uri
  60                 if (StringUtils.isBlank(result)){
  61                         for (MediaRepresentation mediaRepresentation : media.getRepresentations()){
  62                                 for (MediaRepresentationPart part : mediaRepresentation.getParts()){
  63                                         result = (part == null || part.getUri() == null) ? null : part.getUri().toString();
  64                                         if (StringUtils.isBlank(result)){
  65                                                 continue;
  66                                         }
  67                                         int lastSlashPos = result.lastIndexOf("/");
  68                                         if (lastSlashPos != -1 && lastSlashPos + 1 < result.length()){
  69                                                 result = result.substring(lastSlashPos + 1);
  70                                         }
  71                                         break;
  72                                 }
  73                                 if (! StringUtils.isBlank(result)){
  74                                         break;
  75                                 }
  76                         }
  77                         if (StringUtils.isBlank(result)){
  78                                 result = "- empty media - <" + media.getUuid() + ">";
  79                         }
  80                 }
  81                 return result;
  82         }
  83
  84
  85
  86 }