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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.editor.view.concept.handler;
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import org.eclipse.core.commands.AbstractHandler;
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import org.eclipse.core.commands.ExecutionEvent;
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import org.eclipse.core.commands.ExecutionException;
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import org.eclipse.jface.viewers.ISelection;
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import org.eclipse.jface.viewers.IStructuredSelection;
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import org.eclipse.ui.PartInitException;
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import org.eclipse.ui.handlers.HandlerUtil;
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import eu.etaxonomy.cdm.model.taxon.Taxon;
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import eu.etaxonomy.cdm.model.taxon.TaxonBase;
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import eu.etaxonomy.cdm.model.taxon.TaxonRelationship;
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import eu.etaxonomy.taxeditor.bulkeditor.BulkEditor;
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import eu.etaxonomy.taxeditor.editor.EditorUtil;
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import eu.etaxonomy.taxeditor.editor.MultiPageTaxonEditor;
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import eu.etaxonomy.taxeditor.editor.l10n.Messages;
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import eu.etaxonomy.taxeditor.model.AbstractUtility;
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import eu.etaxonomy.taxeditor.model.LineSelection;
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import eu.etaxonomy.taxeditor.model.MessagingUtils;
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/**
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* @author n.hoffmann
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* @created Jan 25, 2011
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* @version 1.0
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*/
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public class OpenRelatedConceptHandler extends AbstractHandler {
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@Override
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public Object execute(ExecutionEvent event) throws ExecutionException {
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ISelection selection = HandlerUtil.getCurrentSelection(event);
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TaxonBase<?> relatedTaxon = null;
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if(selection instanceof IStructuredSelection){
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IStructuredSelection structuredSelection = (IStructuredSelection) selection;
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Object selectedElement = structuredSelection.getFirstElement();
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if(selectedElement instanceof TaxonRelationship){
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Object activeEditor = AbstractUtility.getActiveE4Editor();
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if(activeEditor instanceof MultiPageTaxonEditor){
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relatedTaxon = getRelatedTaxon((TaxonRelationship) selectedElement, ((MultiPageTaxonEditor) activeEditor).getTaxon());
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}
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else if(activeEditor instanceof BulkEditor){
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ISelection bulkSelection = ((BulkEditor)activeEditor).getSelectionProvider().getSelection();
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if(bulkSelection instanceof LineSelection){
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Object firstElement = ((LineSelection)bulkSelection).getFirstElement();
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if(firstElement instanceof Taxon){
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relatedTaxon = getRelatedTaxon((TaxonRelationship) selectedElement, (Taxon) firstElement);
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}
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}
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}
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}
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}
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if(relatedTaxon==null){
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MessagingUtils.messageDialog(Messages.OpenRelatedConceptHandler_COULD_NOT_OPEN, getClass(),
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String.format(Messages.OpenRelatedConceptHandler_COULD_NOT_OPEN_MESSAGE ,relatedTaxon), null);
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}
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else{
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openConcept(relatedTaxon);
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}
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return null;
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}
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/**
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* @param relatedTaxon
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*/
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protected void openConcept(TaxonBase<?> relatedTaxon) {
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try {
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EditorUtil.openTaxonBase(relatedTaxon.getUuid());
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} catch (PartInitException e) {
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MessagingUtils.messageDialog(Messages.OpenRelatedConceptHandler_COULD_NOT_OPEN, getClass(),
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String.format(Messages.OpenRelatedConceptHandler_COULD_NOT_OPEN_MESSAGE ,relatedTaxon), e);
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}
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}
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private Taxon getRelatedTaxon(TaxonRelationship relationship, Taxon taxon){
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if (relationship.getFromTaxon().equals(taxon)){
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return relationship.getToTaxon();
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}
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else if(relationship.getToTaxon().equals(taxon)){
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return relationship.getFromTaxon();
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}
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else{
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return null;
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}
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}
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}
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