eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/derivate/handler/DeleteDerivateHandler.java

   1 // $Id$
   2 /**
   3  * Copyright (C) 2007 EDIT
   4  * European Distributed Institute of Taxonomy
   5  * http://www.e-taxonomy.eu
   6  *
   7  * The contents of this file are subject to the Mozilla Public License Version 1.1
   8  * See LICENSE.TXT at the top of this package for the full license terms.
   9  */
  10
  11 package eu.etaxonomy.taxeditor.editor.view.derivate.handler;
  12
  13 import org.eclipse.core.commands.AbstractHandler;
  14 import org.eclipse.core.commands.ExecutionEvent;
  15 import org.eclipse.core.commands.ExecutionException;
  16 import org.eclipse.core.commands.common.NotDefinedException;
  17 import org.eclipse.core.commands.operations.IUndoContext;
  18 import org.eclipse.jface.viewers.IStructuredSelection;
  19 import org.eclipse.jface.viewers.TreeNode;
  20 import org.eclipse.ui.IWorkbenchPart;
  21 import org.eclipse.ui.handlers.HandlerUtil;
  22
  23 import eu.etaxonomy.cdm.api.conversation.ConversationHolder;
  24 import eu.etaxonomy.cdm.api.conversation.IConversationEnabled;
  25 import eu.etaxonomy.cdm.api.service.config.SpecimenDeleteConfigurator;
  26 import eu.etaxonomy.cdm.model.common.CdmBase;
  27 import eu.etaxonomy.cdm.model.molecular.Sequence;
  28 import eu.etaxonomy.cdm.model.molecular.SingleRead;
  29 import eu.etaxonomy.cdm.model.occurrence.SpecimenOrObservationBase;
  30 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  31 import eu.etaxonomy.taxeditor.editor.view.derivate.operation.DeleteDerivateOperation;
  32 import eu.etaxonomy.taxeditor.model.AbstractUtility;
  33 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  34 import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;
  35 import eu.etaxonomy.taxeditor.view.derivateSearch.DerivateLabelProvider;
  36
  37 /**
  38  *
  39  * @author pplitzner
  40  * @date Oct 21, 2014
  41  *
  42  */
  43 public class DeleteDerivateHandler extends AbstractHandler {
  44
  45     /* (non-Javadoc)
  46      * @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
  47      */
  48     /** {@inheritDoc} */
  49     @Override
  50     public Object execute(ExecutionEvent event) throws ExecutionException {
  51         IStructuredSelection selection = (IStructuredSelection) HandlerUtil.getActiveSite(event).getSelectionProvider().getSelection();
  52
  53         IWorkbenchPart part = HandlerUtil.getActivePart(event);
  54         IPostOperationEnabled postOperationEnabled = (part instanceof IPostOperationEnabled) ? (IPostOperationEnabled) part : null;
  55
  56         try {
  57             String label = event.getCommand().getName();
  58
  59             IUndoContext undoContext = EditorUtil.getUndoContext();
  60
  61             if(selection.size()>0){
  62                 Object object = selection.iterator().next();
  63
  64                 if(object instanceof TreeNode){
  65                     Object value = ((TreeNode) object).getValue();
  66                     if(value instanceof SpecimenOrObservationBase<?> || value instanceof Sequence || value instanceof SingleRead){
  67                         if(postOperationEnabled instanceof IConversationEnabled){
  68                             ConversationHolder conversationHolder = ((IConversationEnabled) postOperationEnabled).getConversationHolder();
  69                             label += " "+DerivateLabelProvider.getDerivateText(value, conversationHolder);
  70                         }
  71                         SpecimenDeleteConfigurator config = new SpecimenDeleteConfigurator();
  72                         config.setDeleteChildren(false);
  73                         DeleteDerivateOperation deleteDerivateOperation = new DeleteDerivateOperation(label, undoContext, (CdmBase) value, postOperationEnabled, config);
  74                         AbstractUtility.executeOperation(deleteDerivateOperation);
  75                     }
  76                 }
  77                 else{
  78                     MessagingUtils.error(getClass(), "Selection is not valid for this delete handler", null);
  79                 }
  80             }
  81
  82         } catch (NotDefinedException e) {
  83             MessagingUtils.warn(getClass(), "Command name not set.");
  84         }
  85         return null;
  86     }
  87 }