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// $Id$
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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.api.utility;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Set;
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import org.apache.log4j.Logger;
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import eu.etaxonomy.cdm.model.description.DescriptionBase;
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import eu.etaxonomy.cdm.model.description.DescriptionElementBase;
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import eu.etaxonomy.cdm.model.description.Feature;
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import eu.etaxonomy.cdm.model.description.TaxonDescription;
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import eu.etaxonomy.cdm.model.description.TextData;
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import eu.etaxonomy.cdm.model.media.ImageFile;
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import eu.etaxonomy.cdm.model.media.Media;
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import eu.etaxonomy.cdm.model.media.MediaRepresentation;
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import eu.etaxonomy.cdm.model.media.MediaRepresentationPart;
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import eu.etaxonomy.cdm.model.media.ReferencedMediaBase;
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import eu.etaxonomy.cdm.model.taxon.Taxon;
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/**
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* @author n.hoffmann
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* @created Jan 27, 2010
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* @version 1.0
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*/
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public class ImagesUtility {
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private static final Logger logger = Logger.getLogger(ImagesUtility.class);
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/**
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* Quick and dirty method to get an element's first image file.
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*
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* @param element
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* @return
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* @deprecated not used by EDITor anymore
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*/
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@Deprecated
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public static ImageFile getImage(DescriptionElementBase element) {
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List<Media> medias = element.getMedia();
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for(Media media : medias){
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Set<MediaRepresentation> representations = media.getRepresentations();
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for(MediaRepresentation representation : representations){
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List<MediaRepresentationPart> parts = representation.getParts();
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for (MediaRepresentationPart part : parts){
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if(part instanceof ImageFile){
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return (ImageFile) part;
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}
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}
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}
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}
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return null;
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}
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/**
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* @deprecated not used by EDITor anymore
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*/
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@Deprecated
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public static List<ImageFile> getOrderedImages(DescriptionElementBase element){
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List<ImageFile> imageList = new ArrayList<ImageFile>();
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MediaRepresentation representation = getImageMediaRepresentation(element);
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if (representation != null) {
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for (MediaRepresentationPart part : representation.getParts()){
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if(!(part instanceof ImageFile)){
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throw new RuntimeException("Your database contains media that mix Image Files with non-Image Files.");
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} else {
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imageList.add((ImageFile) part);
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}
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}
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}
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return imageList;
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}
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/**
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* Returns the first Representation with images. If none is found, a
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* Representation for storing images is created and returned.
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*
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* @deprecated not used by EDITor anymore
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* @param element
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* @return
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*/
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@Deprecated
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private static MediaRepresentation getImageMediaRepresentation(DescriptionElementBase element) {
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// Drill down until a representation with images is found
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for(Media media : element.getMedia()){
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Set<MediaRepresentation> representations = media.getRepresentations();
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for(MediaRepresentation representation : representations){
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List<MediaRepresentationPart> parts = representation.getParts();
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for (MediaRepresentationPart part : parts){
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if(part instanceof ImageFile){
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return representation;
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}
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}
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}
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}
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// No representation with images found - create
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MediaRepresentation representation = MediaRepresentation.NewInstance();
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Media media = ReferencedMediaBase.NewInstance();
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element.addMedia(media);
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media.addRepresentation(representation);
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return representation;
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}
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/**
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* @deprecated not used by EDITor anymore
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* @param description
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* @return
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*/
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@Deprecated
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public static Set<ImageFile> getImages(TaxonDescription description){
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Set<ImageFile> images = new HashSet<ImageFile>();
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for (DescriptionElementBase element : description.getElements()){
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Feature feature = element.getFeature();
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if(feature.equals(Feature.IMAGE())){
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List<Media> medias = element.getMedia();
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for(Media media : medias){
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Set<MediaRepresentation> representations = media.getRepresentations();
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for(MediaRepresentation representation : representations){
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List<MediaRepresentationPart> parts = representation.getParts();
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for (MediaRepresentationPart part : parts){
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if(part instanceof ImageFile){
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images.add((ImageFile) part);
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}
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}
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}
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}
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}
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}
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return images;
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}
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/**
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* @deprecated not used by EDITor anymore
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* @param taxon
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* @param imageFile
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*/
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@Deprecated
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public static void addTaxonImage(Taxon taxon, DescriptionBase<?> imageGallery, ImageFile imageFile) {
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imageGallery.addElement(createImageElement(imageFile));
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}
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/**
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* @deprecated not used by EDITor anymore
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* @param imageFile
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* @return
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*/
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@Deprecated
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public static DescriptionElementBase createImageElement(ImageFile imageFile) {
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DescriptionElementBase descriptionElement = TextData.NewInstance(Feature.IMAGE());
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Media media = Media.NewInstance();
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MediaRepresentation representation = MediaRepresentation.NewInstance();
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representation.addRepresentationPart(imageFile);
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media.addRepresentation(representation);
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descriptionElement.addMedia(media);
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return descriptionElement;
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}
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/**
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* Adds a new, empty image file to the end of a description element's
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* ordered list of images.
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*
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* @deprecated not used by EDITor anymore
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* @param element
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* @return
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*/
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@Deprecated
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public static ImageFile addImagePart(DescriptionElementBase element) {
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ImageFile imageFile = ImageFile.NewInstance(null, null);
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getImageMediaRepresentation(element).addRepresentationPart(imageFile);
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return imageFile;
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}
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/**
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* @deprecated not used by EDITor anymore
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* @param taxon
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* @param imageFile
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*/
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@Deprecated
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public static void removeTaxonImage(Taxon taxon, DescriptionBase<?> imageGallery, ImageFile imageFile) {
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Set<DescriptionElementBase> descriptionElementsToRemove = new HashSet<DescriptionElementBase>();
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Set<MediaRepresentationPart> representationPartsToRemove = new HashSet<MediaRepresentationPart>();
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Set<DescriptionElementBase> images = imageGallery.getElements();
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// overmodelling of media in cdmlib makes this a little bit complicated
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for(DescriptionElementBase descriptionElement : images){
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for(Media media : descriptionElement.getMedia()){
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for(MediaRepresentation representation : media.getRepresentations()){
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for(MediaRepresentationPart part : representation.getParts()){
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if(part.equals(imageFile)){
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// because of concurrent modification, we just collect the parts to remove
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representationPartsToRemove.add(part);
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}
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}
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// and then remove the representation parts here
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for (MediaRepresentationPart part : representationPartsToRemove){
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representation.removeRepresentationPart(part);
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}
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// clear set for next run
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representationPartsToRemove.clear();
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// description elements with empty representations should be deleted as well
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if(representation.getParts().size() == 0){
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descriptionElementsToRemove.add(descriptionElement);
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}
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}
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}
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}
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// remove the empty description elements
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for(DescriptionElementBase descriptionElement : descriptionElementsToRemove){
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imageGallery.removeElement(descriptionElement);
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}
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}
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public static final int UP = 1;
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public static final int DOWN = -1;
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/**
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* @deprecated not used by EDITor anymore
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* @param input
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* @param selectedImage
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* @param direction
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*/
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@Deprecated
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public static void moveImage(DescriptionElementBase element, ImageFile image,
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int direction) {
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MediaRepresentation representation = getImageMediaRepresentation(element);
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int index = representation.getParts().indexOf(image);
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if (index == -1) {
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return;
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}
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if (direction == UP && index != 0) {
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Collections.swap(representation.getParts(), index, index - 1);
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}
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if (direction == DOWN && index < representation.getParts().size() - 1) {
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Collections.swap(representation.getParts(), index, index + 1);
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}
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}
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/**
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* @deprecated not used by EDITor anymore
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* @param input
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* @param selectedImage
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*/
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@Deprecated
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public static void removeImage(DescriptionElementBase element, ImageFile image) {
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getImageMediaRepresentation(element).getParts().remove(image);
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}
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/**
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* Iterate through all taxon's image galleries until the descriptive element containing
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* the ImageFile is found.
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*
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* @deprecated not used by EDITor anymore
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* @param image
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* @param taxon
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* @return
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*/
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@Deprecated
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public static DescriptionElementBase findImageElement(ImageFile image, Taxon taxon) {
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if (taxon == null) {
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return null;
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}
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for (TaxonDescription description : taxon.getDescriptions()) {
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if (description.isImageGallery()) {
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for (DescriptionElementBase element : description.getElements()) {
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if (getOrderedImages(element).contains(image)) {
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return element;
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}
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}
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}
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}
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return null;
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}
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/**
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*
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* @param description
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* @param media
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*/
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public static void addMediaToGallery(DescriptionBase description, Media media){
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DescriptionElementBase element = getGalleryElement(description);
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element.addMedia(media);
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}
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/**
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*
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* @param description
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* @param media
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*/
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public static void removeMediaFromGallery(DescriptionBase description, Media media){
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DescriptionElementBase element = getGalleryElement(description);
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element.removeMedia(media);
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}
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/**
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*
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*
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* @param description
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* @return
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*/
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private static DescriptionElementBase getGalleryElement(DescriptionBase description){
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if(! description.isImageGallery()){
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logger.error("Description has to have imageGallery flag set.");
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}
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Set<DescriptionElementBase> elements = description.getElements();
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if(elements.size() != 1){
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logger.error("Image gallery should have only one description");
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}
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return elements.iterator().next();
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}
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}
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