eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/derivate/operation/MoveDerivateOperation.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2014 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 package eu.etaxonomy.taxeditor.editor.view.derivate.operation;
  11
  12 import org.eclipse.core.commands.ExecutionException;
  13 import org.eclipse.core.commands.operations.IUndoContext;
  14 import org.eclipse.core.runtime.IAdaptable;
  15 import org.eclipse.core.runtime.IProgressMonitor;
  16 import org.eclipse.core.runtime.IStatus;
  17 import org.eclipse.core.runtime.NullProgressMonitor;
  18 import org.eclipse.core.runtime.Status;
  19 import org.eclipse.jface.util.LocalSelectionTransfer;
  20 import org.eclipse.jface.viewers.TreeNode;
  21
  22 import eu.etaxonomy.cdm.api.service.IOccurrenceService;
  23 import eu.etaxonomy.cdm.api.service.molecular.ISequenceService;
  24 import eu.etaxonomy.cdm.model.common.CdmBase;
  25 import eu.etaxonomy.cdm.model.molecular.DnaSample;
  26 import eu.etaxonomy.cdm.model.molecular.Sequence;
  27 import eu.etaxonomy.cdm.model.molecular.SingleRead;
  28 import eu.etaxonomy.cdm.model.occurrence.DerivedUnit;
  29 import eu.etaxonomy.cdm.model.occurrence.SpecimenOrObservationBase;
  30 import eu.etaxonomy.cdm.model.occurrence.SpecimenOrObservationType;
  31 import eu.etaxonomy.taxeditor.editor.Messages;
  32 import eu.etaxonomy.taxeditor.editor.internal.TaxeditorEditorPlugin;
  33 import eu.etaxonomy.taxeditor.editor.view.derivate.DerivateView;
  34 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  35 import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
  36 import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;
  37 import eu.etaxonomy.taxeditor.store.CdmStore;
  38
  39 /**
  40  * @author pplitzner
  41  * @date Nov 18, 2014
  42  *
  43  */
  44 public class MoveDerivateOperation extends AbstractPostOperation<CdmBase>  {
  45
  46     private final TreeNode draggedNode;
  47     private TreeNode fromNode;
  48     private TreeNode targetNode;
  49
  50     public MoveDerivateOperation(String label, IUndoContext undoContext,
  51             IPostOperationEnabled postOperationEnabled, TreeNode draggedNode, TreeNode targetNode) {
  52             super(label, undoContext, null, postOperationEnabled);
  53         this.draggedNode = draggedNode;
  54         this.targetNode = targetNode;
  55     }
  56
  57     @Override
  58     public IStatus execute(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
  59         DerivateView derivateView = null;
  60         if(getPostOperationEnabled() instanceof DerivateView){
  61             derivateView = (DerivateView) getPostOperationEnabled();
  62         }
  63         if(derivateView==null){
  64             MessagingUtils.operationDialog(this, new NullPointerException("Derivative Editor was null"), TaxeditorEditorPlugin.PLUGIN_ID, this.getLabel(), getLabel()); //$NON-NLS-1$
  65             return Status.CANCEL_STATUS;
  66         }
  67         if(derivateView.isDirty()){
  68             MessagingUtils.warningDialog(DerivateView.VIEW_HAS_UNSAVED_CHANGES, this, DerivateView.YOU_NEED_TO_SAVE_BEFORE_PERFORMING_THIS_ACTION);
  69             return Status.CANCEL_STATUS;
  70         }
  71
  72         fromNode = draggedNode.getParent();
  73         if(moveTreeNode(draggedNode, fromNode, targetNode)){
  74             //update DerivateView
  75             derivateView.getConversationHolder().commit();
  76             LocalSelectionTransfer.getTransfer().setSelection(null);
  77             return postExecute(null);
  78         }
  79         else{
  80             MessagingUtils.warningDialog(Messages.MoveDerivateOperation_MOVE_NOT_POSSIBLE, derivateView, String.format(Messages.MoveDerivateOperation_MOVE_TO_NOT_POSSIBLE, derivateView.getLabelProvider().getDerivateText(draggedNode), derivateView.getLabelProvider().getDerivateText(targetNode)));
  81         }
  82         return Status.CANCEL_STATUS;
  83     }
  84
  85     private boolean moveTreeNode(TreeNode draggedNode, TreeNode fromNode, TreeNode targetNode) {
  86         Object draggedNodeValue = draggedNode.getValue();
  87         Object targetNodeValue = targetNode.getValue();
  88         Object fromParentSpecimen = null;
  89         if(fromNode!=null){
  90             fromParentSpecimen = fromNode.getValue();
  91         }
  92
  93         // drag'n'drop for SpecimenOrObservationBase
  94         IOccurrenceService occurrenceService = CdmStore.getService(IOccurrenceService.class);
  95         if(draggedNodeValue instanceof DerivedUnit && targetNodeValue instanceof SpecimenOrObservationBase<?>){
  96             DerivedUnit draggedSpecimen = (DerivedUnit) draggedNodeValue;
  97             SpecimenOrObservationBase<?> targetSpecimen = (SpecimenOrObservationBase<?>) targetNodeValue;
  98             //check if type is a sub derivate type
  99             if(fromParentSpecimen instanceof SpecimenOrObservationBase<?>
 100             && fromNode!=null
 101             && !fromNode.equals(targetNode)){//don't drag on direct parent node)
 102                 return occurrenceService.moveDerivate((SpecimenOrObservationBase<?>)fromParentSpecimen, targetSpecimen, draggedSpecimen);
 103             }
 104         }
 105
 106         // drag'n'drop for SingleRead
 107         else if(draggedNodeValue instanceof SingleRead && targetNodeValue instanceof Sequence){
 108             SingleRead singleRead = (SingleRead) draggedNodeValue;
 109             if(fromParentSpecimen instanceof Sequence){
 110                 return CdmStore.getService(ISequenceService.class).moveSingleRead((Sequence)fromParentSpecimen, (Sequence)targetNodeValue, singleRead).isOk();
 111             }
 112         }
 113
 114         // drag'n'drop for Sequence
 115         else if(draggedNodeValue instanceof Sequence && targetNodeValue instanceof DnaSample && ((SpecimenOrObservationBase<?>) targetNodeValue).getRecordBasis()==SpecimenOrObservationType.DnaSample){
 116             Sequence sequence = (Sequence)draggedNodeValue;
 117             if(fromParentSpecimen instanceof DnaSample && ((SpecimenOrObservationBase<?>) targetNodeValue).getRecordBasis()==SpecimenOrObservationType.DnaSample){
 118                 return occurrenceService.moveSequence((DnaSample)fromParentSpecimen, (DnaSample)targetNodeValue, sequence).isOk();
 119             }
 120         }
 121         return false;
 122     }
 123
 124     @Override
 125     public IStatus redo(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
 126         //swap fromNode and targetNode
 127         this.targetNode = this.fromNode;
 128         return execute(new NullProgressMonitor(), null);
 129     }
 130
 131     @Override
 132     public IStatus undo(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
 133         //swap fromNode and targetNode
 134         this.targetNode = this.fromNode;
 135         return execute(new NullProgressMonitor(), null);
 136     }
 137
 138 }