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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.taxeditor.editor.view.concept.handler;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.Set;
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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.core.commands.common.NotDefinedException;
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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.IWorkbenchPart;
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import org.eclipse.ui.handlers.HandlerUtil;
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import eu.etaxonomy.cdm.model.taxon.TaxonRelationship;
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import eu.etaxonomy.taxeditor.editor.EditorUtil;
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import eu.etaxonomy.taxeditor.editor.Page;
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import eu.etaxonomy.taxeditor.editor.name.TaxonNameEditor;
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import eu.etaxonomy.taxeditor.editor.view.concept.operation.DeleteConceptRelationOperation;
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import eu.etaxonomy.taxeditor.model.MessagingUtils;
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import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
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import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;
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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 DeleteConceptRelationHandler extends AbstractHandler {
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/* (non-Javadoc)
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* @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
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*/
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@Override
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public Object execute(ExecutionEvent event) throws ExecutionException {
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TaxonNameEditor editor = (TaxonNameEditor) EditorUtil.getActiveEditorPage(
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Page.NAME);
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ISelection selection = HandlerUtil.getActiveSite(event).getSelectionProvider().getSelection();
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Set<TaxonRelationship> relations = new HashSet<TaxonRelationship>();
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if(selection instanceof IStructuredSelection){
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IStructuredSelection structuredSelection = (IStructuredSelection) selection;
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Iterator iterator = structuredSelection.iterator();
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while (iterator.hasNext()){
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Object element = iterator.next();
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if(element instanceof TaxonRelationship){
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relations.add((TaxonRelationship) element);
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}
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}
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}
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IWorkbenchPart activePart = HandlerUtil.getActivePart(event);
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IPostOperationEnabled postOperationEnabled = (activePart instanceof IPostOperationEnabled) ? (IPostOperationEnabled) activePart : null;
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try {
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AbstractPostOperation operation = new DeleteConceptRelationOperation(event.getCommand().getName(),
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editor.getUndoContext(), editor.getTaxon(), relations, postOperationEnabled);
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EditorUtil.executeOperation(operation);
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} catch (NotDefinedException e) {
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MessagingUtils.warn(getClass(), "Command name not set");
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}
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return null;
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}
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}
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