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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.model.media;
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import java.net.URI;
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import java.util.HashMap;
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import java.util.Map;
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import javax.persistence.Column;
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import javax.persistence.Entity;
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import javax.persistence.FetchType;
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import javax.persistence.MapKeyJoinColumn;
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import javax.persistence.OneToMany;
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import javax.validation.constraints.NotNull;
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import javax.xml.bind.annotation.XmlAccessType;
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import javax.xml.bind.annotation.XmlAccessorType;
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import javax.xml.bind.annotation.XmlAttribute;
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import javax.xml.bind.annotation.XmlElement;
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import javax.xml.bind.annotation.XmlRootElement;
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import javax.xml.bind.annotation.XmlType;
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import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
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import org.apache.log4j.Logger;
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import org.hibernate.annotations.Cascade;
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import org.hibernate.annotations.CascadeType;
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import org.hibernate.annotations.Type;
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import org.hibernate.envers.Audited;
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import eu.etaxonomy.cdm.jaxb.MultilanguageTextAdapter;
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import eu.etaxonomy.cdm.model.common.Language;
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import eu.etaxonomy.cdm.model.common.LanguageString;
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import eu.etaxonomy.cdm.model.common.MultilanguageText;
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import eu.etaxonomy.cdm.model.common.VersionableEntity;
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/**
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* Class that represents a link to any web resource.
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* It represents a URL and a semantic description of this URL.
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*
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* TODO: may become annotatable in future
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*
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* @author a.mueller
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* @date 09.06.2017
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*
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*/
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@XmlAccessorType(XmlAccessType.FIELD)
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@XmlType(name = "ImageFile", propOrder = {
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"uri",
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"size",
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"description"
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})
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@XmlRootElement(name = "ExternalLink")
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@Entity
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@Audited
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public class ExternalLink extends VersionableEntity implements Cloneable{
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private static final long serialVersionUID = -5008959652949778843L;
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private static final Logger logger = Logger.getLogger(ExternalLink.class);
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/**
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* The {@link ExternalLinkType type} of this link.
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*/
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@XmlAttribute(name ="ExternalLinkType")
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@Column(name="linkType", length=10)
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@NotNull
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@Type(type = "eu.etaxonomy.cdm.hibernate.EnumUserType",
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parameters = {@org.hibernate.annotations.Parameter(name = "enumClass", value = "eu.etaxonomy.cdm.model.media.ExternalLinkType")}
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)
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@Audited
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private ExternalLinkType linkType = ExternalLinkType.Unknown;
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// the URI to link to
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@XmlElement(name = "URI")
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@Type(type="uriUserType")
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private URI uri;
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@XmlElement(name = "Description")
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@XmlJavaTypeAdapter(MultilanguageTextAdapter.class)
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@OneToMany(fetch = FetchType.LAZY, orphanRemoval=true)
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@MapKeyJoinColumn(name="description_mapkey_id")
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@Cascade({CascadeType.SAVE_UPDATE,CascadeType.MERGE, CascadeType.DELETE })
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// @JoinTable(name = "ExternalLink_LanguageString")
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private Map<Language,LanguageString> description = new HashMap<>();
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// the exptected size, mostly relevant for Files, can be null
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@XmlElement(name = "Size")
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private Integer size;
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// *********************************** FACTORY ******************************/
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public static ExternalLink NewInstance(ExternalLinkType type, URI uri){
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return NewInstance(type, uri, null, null);
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}
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public static ExternalLink NewInstance(ExternalLinkType type, URI uri, Map<Language,LanguageString> description){
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return NewInstance(type, uri, description, null);
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}
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public static ExternalLink NewInstance(ExternalLinkType type, URI uri, Map<Language,LanguageString> description, Integer size){
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return new ExternalLink(type, uri, description, size);
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}
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public static ExternalLink NewWebSiteInstance(URI uri){
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return NewInstance(ExternalLinkType.WebSite, uri, null, null);
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}
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public static ExternalLink NewWebSiteInstance(URI uri, Map<Language,LanguageString> description, Integer size){
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return NewInstance(ExternalLinkType.WebSite, uri, description, size);
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}
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// *********************************** CONSTRUCTOR ******************************/
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protected ExternalLink(){
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super();
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}
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protected ExternalLink(ExternalLinkType type, URI uri, Map<Language,LanguageString> description, Integer size){
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super();
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if (type == null){
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throw new NullPointerException("ExternalLinkType must not be null");
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}
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this.linkType = type;
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this.uri = uri;
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this.description = description;
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this.size = size;
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}
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// ******************************* GETTER / SETTER ********************************/
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public ExternalLinkType getLinkType() {
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return this.linkType;
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}
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public void setLinkType(ExternalLinkType linkType) {
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this.linkType = linkType;
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}
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/**
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* The URI of the external link
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*/
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public URI getUri() {
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return this.uri;
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}
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public void setUri(URI uri) {
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this.uri = uri;
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}
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/**
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* The download size of the external link. Mostly relevant for files.
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*/
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public Integer getSize() {
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return this.size;
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}
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public void setSize(Integer size) {
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this.size = size;
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}
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/**
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* Returns the {@link MultilanguageText multilanguage text} used to describe
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* <i>this</i> individuals association. The different {@link LanguageString language strings}
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* contained in the multilanguage text should all have the same meaning.
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*/
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public Map<Language,LanguageString> getDescription(){
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return this.description;
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}
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/**
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* Adds a translated {@link LanguageString text in a particular language}
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* to the {@link MultilanguageText multilanguage text} used to describe
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* <i>this</i> individuals association.
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*
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* @param description the language string describing the individuals association
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* in a particular language
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* @see #getDescription()
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* @see #putDescription(Language, String)
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*
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*/
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public void putDescription(LanguageString description){
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this.description.put(description.getLanguage(),description);
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}
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/**
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* Creates a {@link LanguageString language string} based on the given text string
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* and the given {@link Language language} and adds it to the {@link MultilanguageText multilanguage text}
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* used to describe <i>this</i> individuals association.
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*
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* @param text the string describing the individuals association
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* in a particular language
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* @param language the language in which the text string is formulated
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* @see #getDescription()
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* @see #putDescription(LanguageString)
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*/
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public void putDescription(Language language, String text){
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this.description.put(language, LanguageString.NewInstance(text, language));
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}
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/**
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* Removes from the {@link MultilanguageText multilanguage text} used to describe
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* <i>this</i> individuals association the one {@link LanguageString language string}
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* with the given {@link Language language}.
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*
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* @param language the language in which the language string to be removed
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* has been formulated
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* @see #getDescription()
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*/
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public void removeDescription(Language language){
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this.description.remove(language);
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}
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//*********************************** CLONE *****************************************/
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/**
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* Clones <i>this</i> external link. This is a shortcut that enables to create
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* a new instance that differs only slightly from <i>this</i> external link by
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* modifying only some of the attributes.
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*
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* @see eu.etaxonomy.cdm.model.description.DescriptionElementBase#clone()
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* @see java.lang.Object#clone()
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*/
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@Override
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public Object clone() {
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try {
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ExternalLink result = (ExternalLink)super.clone();
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//description
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result.description = cloneLanguageString(getDescription());
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return result;
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//TODO do we need to clone URI?
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//no changes to: URI, size
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} catch (CloneNotSupportedException e) {
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logger.warn("Object does not implement cloneable");
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e.printStackTrace();
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return null;
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}
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}
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}
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