bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/modelBrowser/handlers/CreateConnectionPoint.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
   3  * in Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.modeling.ui.modelBrowser.handlers;\r
  13 \r
  14 import java.util.HashSet;\r
  15 import java.util.List;\r
  16 import java.util.Set;\r
  17 \r
  18 import org.eclipse.core.commands.AbstractHandler;\r
  19 import org.eclipse.core.commands.ExecutionEvent;\r
  20 import org.eclipse.core.commands.ExecutionException;\r
  21 import org.eclipse.jface.viewers.ISelection;\r
  22 import org.eclipse.ui.handlers.HandlerUtil;\r
  23 import org.simantics.db.Resource;\r
  24 import org.simantics.db.WriteGraph;\r
  25 import org.simantics.db.common.request.WriteRequest;\r
  26 import org.simantics.db.exception.DatabaseException;\r
  27 import org.simantics.db.layer0.SelectionHints;\r
  28 import org.simantics.modeling.flags.LiftFlag;\r
  29 import org.simantics.ui.SimanticsUI;\r
  30 import org.simantics.utils.ui.ISelectionUtils;\r
  31 \r
  32 /**\r
  33  * See <a href="https://www.simantics.org/wiki/index.php/Modeling_ontology#Creating_connection_points}">Creating connection points</a>\r
  34  * \r
  35  * @author Hannu Niemistö\r
  36  */\r
  37 public class CreateConnectionPoint extends AbstractHandler {\r
  38 \r
  39     private static List<Resource> getFlagResource(ISelection sel) {\r
  40         return ISelectionUtils.getPossibleKeys(sel, SelectionHints.KEY_MAIN, Resource.class);\r
  41     }\r
  42 \r
  43     @Override\r
  44     public Object execute(ExecutionEvent event) throws ExecutionException {\r
  45         ISelection sel = HandlerUtil.getCurrentSelection(event);\r
  46         List<Resource> flags = getFlagResource(sel);\r
  47         if (flags.isEmpty())\r
  48             return null;\r
  49         final Set<Resource> flagSet = new HashSet<Resource>(flags);\r
  50 \r
  51         SimanticsUI.getSession().asyncRequest(new WriteRequest() {\r
  52             @Override\r
  53             public void perform(WriteGraph g) throws DatabaseException {\r
  54                 for (Resource flag : flagSet)\r
  55                     LiftFlag.liftFlag(g, flag);\r
  56             }\r
  57         });\r
  58 \r
  59         return null;\r
  60     }\r
  61     \r
  62 }\r
  63 \r