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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.taxeditor.featuretree;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.UUID;
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import org.eclipse.jface.viewers.ITreeContentProvider;
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import org.eclipse.jface.viewers.Viewer;
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import eu.etaxonomy.cdm.model.term.DefinedTermBase;
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import eu.etaxonomy.cdm.model.term.TermNode;
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import eu.etaxonomy.cdm.model.term.TermTree;
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import eu.etaxonomy.cdm.persistence.dto.TermNodeDto;
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import eu.etaxonomy.cdm.persistence.dto.TermTreeDto;
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/**
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* <p>TermTreeContentProvider class.</p>
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*
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* @author n.hoffmann
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* @created Aug 5, 2010
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* @version 1.0
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*/
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public class TermTreeContentProvider<T extends DefinedTermBase> implements ITreeContentProvider {
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Viewer viewer;
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TermNodeDto oldInput;
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TermNodeDto newInput;
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Map<UUID, TermNodeDto> uuidTermMap = new HashMap<>();
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/* (non-Javadoc)
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* @see org.eclipse.jface.viewers.IContentProvider#dispose()
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*/
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/** {@inheritDoc} */
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@Override
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public void dispose() {
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}
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/* (non-Javadoc)
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* @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
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*/
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/** {@inheritDoc} */
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@Override
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public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
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this.viewer = viewer;
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if (oldInput instanceof TermNodeDto){
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this.oldInput = (TermNodeDto)oldInput;
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}
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if (newInput instanceof TermNodeDto){
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this.newInput = (TermNodeDto)newInput;
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}
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if (oldInput instanceof TermTreeDto){
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this.oldInput = ((TermTreeDto)oldInput).getRoot();
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}
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if (newInput instanceof TermTreeDto){
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this.newInput = ((TermTreeDto)newInput).getRoot();
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}
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}
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/** {@inheritDoc} */
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@Override
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public Object[] getElements(Object inputElement) {
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return this.getChildren(inputElement);
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}
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/** {@inheritDoc} */
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@Override
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public Object[] getChildren(Object parentElement) {
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if(parentElement instanceof TermTree){
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List<TermNode> children = ((TermTree) parentElement).getRootChildren();
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return children.toArray();
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}else if(parentElement instanceof TermNode){
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List<TermNode> children = ((TermNode) parentElement).getChildNodes();
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return children.toArray();
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}
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if(parentElement instanceof TermTreeDto){
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if (((TermTreeDto) parentElement).getRoot() != null){
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List<TermNodeDto> children = ((TermTreeDto) parentElement).getRoot().getChildren();
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return children.toArray();
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}
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return new Object[]{};
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}else if(parentElement instanceof TermNodeDto){
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List<TermNodeDto> children = ((TermNodeDto) parentElement).getChildren();
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return children.toArray();
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}else if(parentElement instanceof List){
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return ((List<TermNodeDto>) parentElement).toArray();
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}else{
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return new Object[]{};
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}
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}
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/** {@inheritDoc} */
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@Override
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public Object getParent(Object element) {
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if(element instanceof TermNode){
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return ((TermNode) element).getParent();
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}
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if(element instanceof TermNodeDto){
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TermNodeDto parent = uuidTermMap.get(((TermNodeDto) element).getParentUuid());
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return parent;
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}
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return null;
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}
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public Map<UUID, TermNodeDto> getUuidTermMap() {
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return uuidTermMap;
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}
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public void setUuidTermMap(Map<UUID, TermNodeDto> uuidTermMap) {
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this.uuidTermMap = uuidTermMap;
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}
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/** {@inheritDoc} */
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@Override
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public boolean hasChildren(Object element) {
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return getChildren(element).length != 0;
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}
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}
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