eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/operation/e4/RemotingCdmHandlerE4.java

   1 /**
   2 * Copyright (C) 2015 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9 package eu.etaxonomy.taxeditor.operation.e4;
  10
  11 import javax.inject.Named;
  12
  13 import org.eclipse.core.commands.operations.AbstractOperation;
  14 import org.eclipse.core.runtime.IStatus;
  15 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
  16 import org.eclipse.e4.ui.model.application.ui.menu.MHandledMenuItem;
  17 import org.eclipse.e4.ui.services.IServiceConstants;
  18 import org.eclipse.jface.dialogs.ErrorDialog;
  19 import org.eclipse.jface.viewers.TreeSelection;
  20 import org.eclipse.swt.widgets.Shell;
  21
  22 import eu.etaxonomy.taxeditor.model.AbstractUtility;
  23 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  24
  25 /**
  26  * @author cmathew
  27  * @date 16 Jun 2015
  28  *
  29  */
  30 public abstract class RemotingCdmHandlerE4 {
  31
  32     private final String label;
  33
  34     public RemotingCdmHandlerE4(String label) {
  35         this.label = label;
  36     }
  37
  38     public void execute(@Named(IServiceConstants.ACTIVE_SELECTION)TreeSelection selection,
  39             @Named(IServiceConstants.ACTIVE_SHELL)Shell shell,
  40             @Named(IServiceConstants.ACTIVE_PART)MPart activePart,
  41             MHandledMenuItem menuItem) {
  42         IStatus allowStatus = allowOperations(selection, shell, activePart, menuItem);
  43         if(allowStatus.isOK()) {
  44             AbstractOperation op = prepareOperation(selection, shell, activePart, menuItem);
  45             if(op != null) {
  46                 AbstractUtility.executeOperation(op, this);
  47             }
  48         } else if(allowStatus.getSeverity() == IStatus.ERROR ||
  49                 allowStatus.getSeverity() == IStatus.WARNING ||
  50                 allowStatus.getSeverity() == IStatus.INFO) {
  51             MessagingUtils.warningDialog("Can not perform " + label, getTrigger(), allowStatus);
  52         }
  53         return;
  54     }
  55
  56     public void postOperation(IStatus status) {
  57
  58         switch(status.getSeverity()) {
  59         case IStatus.WARNING:
  60             ErrorDialog.openError(null, "Operation successful but with warnings", null, status);
  61             break;
  62         case IStatus.ERROR:
  63             ErrorDialog.openError(null, "Error executing operation", null, status);
  64             break;
  65         default:
  66         }
  67
  68         onComplete();
  69     }
  70
  71     public abstract IStatus allowOperations(TreeSelection selection,
  72             Shell shell,
  73             MPart activePart,
  74             MHandledMenuItem menuItem);
  75
  76     public abstract AbstractOperation prepareOperation(TreeSelection selection,
  77             Shell shell,
  78             MPart activePart,
  79             MHandledMenuItem menuItem);
  80
  81     public abstract void onComplete();
  82
  83     protected abstract Object getTrigger();
  84
  85 }