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             taxonNode = CdmApplicationState.getCurrentAppConfig().getTaxonNodeService().load(taxonNode.getUuid());
  92             if (taxonNode == null){
  93                 MessagingUtils.informationDialog("Node already deleted", "The taxon node was already deleted. Please reopen the taxon navigator to refresh the view.");
  94                 return Status.CANCEL_STATUS;
  95
  96             }
  97             TaxonNodeDeletionConfigurator configNodes = new TaxonNodeDeletionConfigurator();
  98             if (taxonNode instanceof Classification && taxonNode.hasChildNodes()){
  99                 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.")){
 100                     return Status.CANCEL_STATUS;
 101                 }
 102             } else if (taxonNode instanceof Classification && !taxonNode.hasChildNodes()){
 103                 if(!DeleteConfiguratorDialog.openConfirmWithConfigurator(config, HandlerUtil.getActiveShell(event), "Confirm Deletion", "Do you really want to delete the classification?")){
 104                     return Status.CANCEL_STATUS;
 105                 }
 106             } else {
 107
 108                 if (taxonNode.hasChildNodes()){
 109                     DeleteConfiguratorDialog dialog = new DeleteConfiguratorDialog(
 110                             config,
 111                             HandlerUtil.getActiveShell(event),
 112                             "Confirm Deletion",
 113                             null,
 114                             "Do you really want to delete the selected node? It has childnodes, they will be deleted, too.",
 115                             MessageDialog.WARNING, new String[] { "Delete all children",
 116                                 "Move children to parent node", "Skip" }, 0);
 117                     int result = dialog.open();
 118
 119                     if (result == 0){
 120                         //delete all children
 121                         configNodes.setChildHandling(ChildHandling.DELETE);
 122                         config.setTaxonNodeConfig(configNodes);
 123                     } else if (result == 1){
 124                         //move children
 125                         configNodes.setChildHandling(ChildHandling.MOVE_TO_PARENT);
 126                         config.setTaxonNodeConfig(configNodes);
 127                     } else if (result == 2){
 128                         return Status.CANCEL_STATUS;
 129                     }
 130                 } else{
 131                     if(!DeleteConfiguratorDialog.openConfirmWithConfigurator(configNodes, HandlerUtil.getActiveShell(event), "Confirm Deletion", "Do you really want to delete the selected node?")){
 132                         return Status.CANCEL_STATUS;
 133                     }
 134                     config.setTaxonNodeConfig(configNodes);
 135                 }
 136             }
 137         }
 138         return Status.OK_STATUS;
 139     }
 140
 141     /* (non-Javadoc)
 142      * @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#prepareOperation(org.eclipse.core.commands.ExecutionEvent)
 143      */
 144     @Override
 145     public AbstractOperation prepareOperation(ExecutionEvent event) {
 146         return new RemotingDeleteTaxonNodeOperation(event.getTrigger(),
 147                 false,
 148                 treeNodes,
 149                 config);
 150     }
 151
 152     /* (non-Javadoc)
 153      * @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#onComplete()
 154      */
 155     @Override
 156     public void onComplete() {
 157         // TODO Auto-generated method stub
 158
 159     }
 160
 161 }