eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/view/datasource/handler/ChangeConnectionHandler.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 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
  11 package eu.etaxonomy.taxeditor.view.datasource.handler;
  12
  13 import org.eclipse.core.commands.AbstractHandler;
  14 import org.eclipse.core.commands.ExecutionEvent;
  15 import org.eclipse.jface.viewers.ISelection;
  16 import org.eclipse.jface.viewers.IStructuredSelection;
  17 import org.eclipse.ui.handlers.HandlerUtil;
  18
  19 import eu.etaxonomy.taxeditor.Messages;
  20 import eu.etaxonomy.taxeditor.datasource.CdmDataSourceRepository;
  21 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  22 import eu.etaxonomy.taxeditor.store.CdmStore;
  23 import eu.etaxonomy.taxeditor.view.datasource.CdmMetaDataAwareDataSourceContainer;
  24
  25 /**
  26  * @author n.hoffmann
  27  * @created 15.04.2009
  28  * @version 1.0
  29  */
  30 public class ChangeConnectionHandler extends AbstractHandler {
  31
  32         /** {@inheritDoc} */
  33         @Override
  34     public Object execute(ExecutionEvent event) {
  35                 ISelection selection = HandlerUtil.getCurrentSelection(event);
  36
  37                 if(selection != null && selection instanceof IStructuredSelection){
  38                         CdmMetaDataAwareDataSourceContainer container = (CdmMetaDataAwareDataSourceContainer) ((IStructuredSelection) selection).getFirstElement();
  39
  40                         if(CdmStore.isConnecting()){
  41                                 MessagingUtils.warningDialog(Messages.ChangeConnectionHandler_ALREADY_CONNECTING, this, Messages.ChangeConnectionHandler_CURRENTLY_CONNECTING_ALREADY);
  42                                 return null;
  43                         }
  44
  45                         try {
  46                                 container.getCdmSource().checkConnection();
  47                                 boolean confirmed = MessagingUtils.confirmDialog(Messages.ChangeConnectionHandler_CONFIRM_DATASOURCE, Messages.ChangeConnectionHandler_REALLY_WANT_TO_CONNECT
  48                                                 + container.getCdmSource().getName());
  49
  50                                 if(confirmed){
  51                                         CdmDataSourceRepository.changeDataSource(container.getCdmSource());
  52                                 }
  53                         } catch (Exception e) {
  54                                 MessagingUtils.warningDialog(Messages.ChangeConnectionHandler_DATASOURCE_NOT_AVAILABLE, this, Messages.ChangeConnectionHandler_NOT_AVAILABLE_REASONS);
  55                                 MessagingUtils.warn(getClass(), e);
  56                                 return null;
  57                         }
  58                 }
  59
  60                 return null;
  61         }
  62 }