eu.etaxonomy.taxeditor.navigation/src/main/java/eu/etaxonomy/taxeditor/navigation/navigator/handler/RemotingDeleteTaxonNodeHandler.java

   1 // $Id$
   2 /**
   3  * Copyright (C) 2015 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.navigation.navigator.handler;
  11
  12 import java.util.HashSet;
  13 import java.util.Iterator;
  14 import java.util.Set;
  15
  16 import org.eclipse.core.commands.ExecutionEvent;
  17 import org.eclipse.core.commands.operations.AbstractOperation;
  18 import org.eclipse.core.runtime.IStatus;
  19 import org.eclipse.core.runtime.Status;
  20 import org.eclipse.jface.dialogs.MessageDialog;
  21 import org.eclipse.jface.viewers.TreeSelection;
  22 import org.eclipse.ui.IWorkbenchPage;
  23 import org.eclipse.ui.handlers.HandlerUtil;
  24
  25 import eu.etaxonomy.cdm.api.application.CdmApplicationState;
  26 import eu.etaxonomy.cdm.api.service.config.TaxonDeletionConfigurator;
  27 import eu.etaxonomy.cdm.api.service.config.TaxonNodeDeletionConfigurator;
  28 import eu.etaxonomy.cdm.api.service.config.NodeDeletionConfigurator.ChildHandling;
  29 import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
  30 import eu.etaxonomy.cdm.model.taxon.Classification;
  31 import eu.etaxonomy.cdm.model.taxon.ITaxonTreeNode;
  32 import eu.etaxonomy.cdm.model.taxon.TaxonNode;
  33 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  34 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  35 import eu.etaxonomy.taxeditor.navigation.navigator.TaxonNavigatorLabels;
  36 import eu.etaxonomy.taxeditor.navigation.navigator.operation.RemotingDeleteTaxonNodeOperation;
  37 import eu.etaxonomy.taxeditor.operation.RemotingCdmHandler;
  38 import eu.etaxonomy.taxeditor.ui.dialog.deleteConfigurator.DeleteConfiguratorDialog;
  39
  40 /**
  41  * @author cmathew
  42  * @date 22 Jun 2015
  43  *
  44  */
  45 public class RemotingDeleteTaxonNodeHandler extends RemotingCdmHandler {
  46
  47     private TaxonDeletionConfigurator config;
  48     private Set<ITaxonTreeNode> treeNodes;
  49
  50     /**
  51      * @param label
  52      */
  53     public RemotingDeleteTaxonNodeHandler() {
  54         super(TaxonNavigatorLabels.DELETE_TAXON_NODE_LABEL);
  55     }
  56
  57     /* (non-Javadoc)
  58      * @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#allowOperations(org.eclipse.core.commands.ExecutionEvent)
  59      */
  60     @Override
  61     public IStatus allowOperations(ExecutionEvent event) {
  62         TreeSelection selection = (TreeSelection) HandlerUtil.getCurrentSelection(event);
  63
  64         Iterator selectionIterator = selection.iterator();
  65         treeNodes = new HashSet<ITaxonTreeNode>();
  66
  67         while (selectionIterator.hasNext()){
  68             Object object = selectionIterator.next();
  69             if(object instanceof ITaxonTreeNode) {
  70                 treeNodes.add((ITaxonTreeNode) object);
  71             }
  72         }
  73         boolean allEditorsClosed = true;
  74         IWorkbenchPage activePage = HandlerUtil.getActiveWorkbenchWindow(event).getActivePage();
  75         for (ITaxonTreeNode treeNode : treeNodes) {
  76             if(treeNode instanceof TaxonNode) {
  77                 allEditorsClosed &= EditorUtil.closeObsoleteEditor((TaxonNode) treeNode, activePage);
  78             }
  79         }
  80         if(!allEditorsClosed) {
  81             return new Status(IStatus.WARNING,
  82                     "unknown",
  83                     TaxonNavigatorLabels.RELATED_EDITOR_NOT_CLOSED_MESSAGE);
  84         }
  85
  86         config = new TaxonDeletionConfigurator();
  87
  88         if (treeNodes.size() == 1 ){
  89                 ITaxonTreeNode treeNode = treeNodes.iterator().next();
  90             ITaxonTreeNode taxonNode = treeNode;
  91             if (taxonNode instanceof Classification){
  92                 taxonNode = CdmApplicationState.getCurrentAppConfig().getClassificationService().load(taxonNode.getUuid());
  93             }else{
  94                 taxonNode = CdmApplicationState.getCurrentAppConfig().getTaxonNodeService().load(taxonNode.getUuid());
  95             }
  96             if (taxonNode == null){
  97                 MessagingUtils.informationDialog("Node already deleted", "The taxon node was already deleted. Please reopen the taxon navigator to refresh the view.");
  98                 return Status.CANCEL_STATUS;
  99
 100             }
 101             TaxonNodeDeletionConfigurator configNodes = new TaxonNodeDeletionConfigurator();
 102             if (taxonNode instanceof Classification && taxonNode.hasChildNodes()){
 103                 if(!DeleteConfiguratorDialog.openConfirmWithConfigurator(config, HandlerUtil.getActiveShell(event), "Confirm Deletion", "Do you really want to delete the classification? The tree has children, they will be deleted, too.")){
 104                     return Status.CANCEL_STATUS;
 105                 }
 106             } else if (taxonNode instanceof Classification && !taxonNode.hasChildNodes()){
 107                 if(!DeleteConfiguratorDialog.openConfirmWithConfigurator(config, HandlerUtil.getActiveShell(event), "Confirm Deletion", "Do you really want to delete the classification?")){
 108                     return Status.CANCEL_STATUS;
 109                 }
 110             } else {
 111
 112                 if (taxonNode.hasChildNodes()){
 113                     DeleteConfiguratorDialog dialog = new DeleteConfiguratorDialog(
 114                             config,
 115                             HandlerUtil.getActiveShell(event),
 116                             "Confirm Deletion",
 117                             null,
 118                             "Do you really want to delete the selected node? It has childnodes, they will be deleted, too.",
 119                             MessageDialog.WARNING, new String[] { "Delete all children",
 120                                 "Move children to parent node", "Skip" }, 0);
 121                     int result = dialog.open();
 122
 123                     if (result == 0){
 124                         //delete all children
 125                         configNodes.setChildHandling(ChildHandling.DELETE);
 126                         config.setTaxonNodeConfig(configNodes);
 127                     } else if (result == 1){
 128                         //move children
 129                         configNodes.setChildHandling(ChildHandling.MOVE_TO_PARENT);
 130                         config.setTaxonNodeConfig(configNodes);
 131                     } else if (result == 2){
 132                         return Status.CANCEL_STATUS;
 133                     }
 134                 } else{
 135                     if(!DeleteConfiguratorDialog.openConfirmWithConfigurator(configNodes, HandlerUtil.getActiveShell(event), "Confirm Deletion", "Do you really want to delete the selected node?")){
 136                         return Status.CANCEL_STATUS;
 137                     }
 138                     config.setTaxonNodeConfig(configNodes);
 139                 }
 140             }
 141         }
 142         return Status.OK_STATUS;
 143     }
 144
 145     /* (non-Javadoc)
 146      * @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#prepareOperation(org.eclipse.core.commands.ExecutionEvent)
 147      */
 148     @Override
 149     public AbstractOperation prepareOperation(ExecutionEvent event) {
 150         return new RemotingDeleteTaxonNodeOperation(event.getTrigger(),
 151                 false,
 152                 treeNodes,
 153                 config);
 154     }
 155
 156     /* (non-Javadoc)
 157      * @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#onComplete()
 158      */
 159     @Override
 160     public void onComplete() {
 161         // TODO Auto-generated method stub
 162
 163     }
 164
 165 }