eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/operation/RemotingCdmHandler.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.operation;
  11
  12 import org.eclipse.core.commands.AbstractHandler;
  13 import org.eclipse.core.commands.ExecutionEvent;
  14 import org.eclipse.core.commands.ExecutionException;
  15 import org.eclipse.core.commands.operations.AbstractOperation;
  16 import org.eclipse.core.runtime.IStatus;
  17 import org.eclipse.jface.dialogs.ErrorDialog;
  18
  19 import eu.etaxonomy.taxeditor.model.AbstractUtility;
  20 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  21
  22 /**
  23  * @author cmathew
  24  * @date 16 Jun 2015
  25  *
  26  */
  27 public abstract class RemotingCdmHandler extends AbstractHandler {
  28
  29     private final String label;
  30
  31     public RemotingCdmHandler(String label) {
  32         this.label = label;
  33     }
  34
  35     /* (non-Javadoc)
  36      * @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
  37      */
  38     @Override
  39     public Object execute(ExecutionEvent event) throws ExecutionException {
  40         IStatus allowStatus = allowOperations(event);
  41         if(allowStatus.isOK()) {
  42             AbstractOperation op = prepareOperation(event);
  43             if(op != null) {
  44                 AbstractUtility.executeOperation(op, this);
  45             }
  46         } else if(allowStatus.getSeverity() == IStatus.ERROR ||
  47                 allowStatus.getSeverity() == IStatus.WARNING ||
  48                 allowStatus.getSeverity() == IStatus.INFO) {
  49             MessagingUtils.warningDialog("Can not perform " + label, event.getTrigger(), allowStatus);
  50         }
  51         return null;
  52     }
  53
  54     public void postOperation(IStatus status) {
  55
  56         switch(status.getSeverity()) {
  57         case IStatus.WARNING:
  58             ErrorDialog.openError(null, "Operation successful but with warnings", null, status);
  59             break;
  60         case IStatus.ERROR:
  61             ErrorDialog.openError(null, "Error executing operation", null, status);
  62             break;
  63         default:
  64         }
  65
  66         onComplete();
  67     }
  68
  69     public abstract IStatus allowOperations(ExecutionEvent event);
  70
  71     public abstract AbstractOperation prepareOperation(ExecutionEvent event);
  72
  73     public abstract void onComplete();
  74
  75 }