gerrit.simantics Code Review - simantics/platform.git/blob

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.simulation.ui.handlers;
  13
  14 import org.eclipse.core.commands.AbstractHandler;
  15 import org.eclipse.core.commands.ExecutionEvent;
  16 import org.eclipse.core.commands.ExecutionException;
  17 import org.eclipse.jface.viewers.ISelection;
  18 import org.eclipse.ui.handlers.HandlerUtil;
  19 import org.simantics.db.ReadGraph;
  20 import org.simantics.db.Resource;
  21 import org.simantics.db.common.request.ReadRequest;
  22 import org.simantics.db.exception.DatabaseException;
  23 import org.simantics.project.IProject;
  24 import org.simantics.simulation.ontology.SimulationResource;
  25 import org.simantics.simulation.project.IExperimentManager;
  26 import org.simantics.ui.SimanticsUI;
  27 import org.simantics.ui.utils.ResourceAdaptionUtils;
  28 import org.simantics.utils.ui.ErrorLogger;
  29
  30 /**
  31  * A generic command handler for activating an experiment based on the currently
  32  * selected experiment in the UI.
  33  *
  34  * @author Tuukka Lehtonen
  35  *
  36  * @see ActivateExperimentAction
  37  * @see ExperimentActivator
  38  */
  39 public class ActivateExperimentHandler extends AbstractHandler {
  40
  41     @Override
  42     public Object execute(ExecutionEvent event) throws ExecutionException {
  43         ISelection selection = HandlerUtil.getCurrentSelection(event);
  44         final Resource experiment = ResourceAdaptionUtils.toSingleResource(selection);
  45         if (experiment == null)
  46             return null;
  47
  48         final IProject project = SimanticsUI.peekProject();
  49         if (project == null)
  50             return null;
  51
  52         final IExperimentManager experimentManager = project.getHint(IExperimentManager.KEY_EXPERIMENT_MANAGER);
  53         if (experimentManager == null) {
  54             ErrorLogger.defaultLogWarning("Experiment manager not available.", new Exception());
  55             return null;
  56         }
  57
  58         try {
  59             project.getSession().syncRequest(new ReadRequest() {
  60                 @Override
  61                 public void run(ReadGraph graph) throws DatabaseException {
  62                     if (graph.isInstanceOf(experiment, SimulationResource.getInstance(graph).Experiment)) {
  63                         ExperimentActivator.scheduleActivation(graph, project, experimentManager, experiment);
  64                     }
  65                 }
  66             });
  67         } catch (DatabaseException e) {
  68             ErrorLogger.defaultLogError(e);
  69         }
  70
  71         return null;
  72     }
  73
  74 }