eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/operation/RemotingCdmHandler.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;
  10
  11 import org.eclipse.core.commands.AbstractHandler;
  12 import org.eclipse.core.commands.ExecutionEvent;
  13 import org.eclipse.core.commands.ExecutionException;
  14 import org.eclipse.core.commands.operations.AbstractOperation;
  15 import org.eclipse.core.runtime.IStatus;
  16 import org.eclipse.jface.dialogs.ErrorDialog;
  17
  18 import eu.etaxonomy.taxeditor.model.AbstractUtility;
  19 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  20
  21 /**
  22  * @author cmathew
  23  * @date 16 Jun 2015
  24  *
  25  */
  26 public abstract class RemotingCdmHandler extends AbstractHandler {
  27
  28     private final String label;
  29
  30     public RemotingCdmHandler(String label) {
  31         this.label = label;
  32     }
  33
  34     /* (non-Javadoc)
  35      * @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
  36      */
  37     @Override
  38     public Object execute(ExecutionEvent event) throws ExecutionException {
  39         IStatus allowStatus = allowOperations(event);
  40         if(allowStatus.isOK()) {
  41             AbstractOperation op = prepareOperation(event);
  42             if(op != null) {
  43                 AbstractUtility.executeOperation(op, this);
  44             }
  45         } else if(allowStatus.getSeverity() == IStatus.ERROR ||
  46                 allowStatus.getSeverity() == IStatus.WARNING ||
  47                 allowStatus.getSeverity() == IStatus.INFO) {
  48             MessagingUtils.warningDialog("Can not perform " + label, event.getTrigger(), allowStatus);
  49         }
  50         return null;
  51     }
  52
  53     public void postOperation(IStatus status) {
  54
  55         switch(status.getSeverity()) {
  56         case IStatus.WARNING:
  57             ErrorDialog.openError(null, "Operation successful but with warnings", null, status);
  58             break;
  59         case IStatus.ERROR:
  60             ErrorDialog.openError(null, "Error executing operation", null, status);
  61             break;
  62         default:
  63         }
  64
  65         onComplete();
  66     }
  67
  68     public abstract IStatus allowOperations(ExecutionEvent event);
  69
  70     public abstract AbstractOperation prepareOperation(ExecutionEvent event);
  71
  72     public abstract void onComplete();
  73
  74 }