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/**
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* Copyright (C) 2017 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.util;
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import java.util.Collection;
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import org.eclipse.jface.viewers.ITreeContentProvider;
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import eu.etaxonomy.cdm.api.service.ITaxonNodeService;
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import eu.etaxonomy.cdm.model.taxon.TaxonNode;
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import eu.etaxonomy.cdm.persistence.dto.TaxonNodeDto;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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/**
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* @author pplitzner
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* @date 05.09.2017
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*/
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public class TaxonTreeNodeContentProvider implements ITreeContentProvider {
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private static final Object[] NO_CHILDREN = new Object[0];
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private ITaxonNodeService taxonNodeService;
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@Override
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public Object[] getElements(Object inputElement) {
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if(inputElement instanceof Collection){
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return ((Collection) inputElement).toArray();
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}
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return this.getChildren(inputElement);
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}
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@Override
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public Object[] getChildren(Object parentElement) {
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if (taxonNodeService == null){
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taxonNodeService = CdmStore.getService(ITaxonNodeService.class);
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}
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Object[] children = null;
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// if(parentElement instanceof Classification){
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// children = taxonNodeService.listChildNodesAsUuidAndTitleCache(((Classification)parentElement).getRootNode()).toArray();
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//// children = ((Classification) parentElement).getChildNodes().toArray();
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// }
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// //taxon node
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// if(parentElement instanceof ITaxonTreeNode){
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// ITaxonTreeNode treeNode = (ITaxonTreeNode) HibernateProxyHelper.deproxy(parentElement);
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// List<TaxonNode> childrenSet = treeNode.getChildNodes();
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// HHH_9751_Util.removeAllNull(childrenSet);
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// children = childrenSet.toArray();
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// }
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if(parentElement instanceof TaxonNode){
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children = taxonNodeService.listChildNodesAsTaxonNodeDto((TaxonNode)parentElement).toArray();
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}else {
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children = taxonNodeService.listChildNodesAsTaxonNodeDto((TaxonNodeDto)parentElement).toArray();
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}
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return children != null ? children : NO_CHILDREN;
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}
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@Override
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public Object getParent(Object element) {
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if (taxonNodeService == null){
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taxonNodeService = CdmStore.getService(ITaxonNodeService.class);
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}
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if(element instanceof TaxonNodeDto){
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if (((TaxonNodeDto) element).getParentUUID() != null){
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TaxonNode parent = taxonNodeService.load(((TaxonNodeDto) element).getParentUUID());
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if (parent != null){
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return new TaxonNodeDto(parent);
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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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@Override
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public boolean hasChildren(Object element) {
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if(element instanceof TaxonNode){
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return ((TaxonNode) element).getCountChildren() > 0;
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}
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if (element instanceof TaxonNodeDto){
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return ((TaxonNodeDto)element).getTaxonomicChildrenCount()>0;
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}
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return this.getChildren(element).length > 0;
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}
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}
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