org.simantics.district.network.ui/src/org/simantics/district/network/ui/contributions/JoinVerticesHandler.java

   1 package org.simantics.district.network.ui.contributions;
   2
   3 import java.util.List;
   4
   5 import javax.inject.Named;
   6
   7 import org.eclipse.core.runtime.IProgressMonitor;
   8 import org.eclipse.core.runtime.IStatus;
   9 import org.eclipse.core.runtime.Status;
  10 import org.eclipse.core.runtime.jobs.Job;
  11 import org.eclipse.e4.core.di.annotations.CanExecute;
  12 import org.eclipse.e4.core.di.annotations.Execute;
  13 import org.eclipse.e4.ui.services.IServiceConstants;
  14 import org.eclipse.jface.viewers.ISelection;
  15 import org.simantics.DatabaseJob;
  16 import org.simantics.Simantics;
  17 import org.simantics.db.Resource;
  18 import org.simantics.db.WriteGraph;
  19 import org.simantics.db.common.request.WriteRequest;
  20 import org.simantics.db.exception.DatabaseException;
  21 import org.simantics.db.layer0.SelectionHints;
  22 import org.simantics.district.network.DistrictNetworkUtil;
  23 import org.simantics.district.network.ui.internal.Activator;
  24 import org.simantics.utils.ui.ISelectionUtils;
  25
  26 public class JoinVerticesHandler {
  27
  28     @CanExecute
  29     public boolean canExecute(@Named(IServiceConstants.ACTIVE_SELECTION) ISelection selection) {
  30         List<Resource> vertices = ISelectionUtils.getPossibleKeys(selection, SelectionHints.KEY_MAIN, Resource.class);
  31         return vertices.size() > 1;
  32     }
  33
  34     @Execute
  35     public void execute(@Named(IServiceConstants.ACTIVE_SELECTION) Object selection) {
  36         final List<Resource> vertices = ISelectionUtils.getPossibleKeys(selection, SelectionHints.KEY_MAIN, Resource.class);
  37         if (vertices.size() <= 1)
  38             return;
  39         Job job = new DatabaseJob("Join selected vertices") {
  40
  41             @Override
  42             protected IStatus run(IProgressMonitor monitor) {
  43                 try {
  44                     Simantics.getSession().syncRequest(new WriteRequest() {
  45
  46                         @Override
  47                         public void perform(WriteGraph graph) throws DatabaseException {
  48                             DistrictNetworkUtil.joinVertices(graph, vertices);
  49                         }
  50                     });
  51                 } catch (DatabaseException e) {
  52                     return new Status(IStatus.ERROR, Activator.PLUGIN_ID, getName() + " failed.", e);
  53                 }
  54                 return Status.OK_STATUS;
  55             }
  56         };
  57         job.setUser(true);
  58         job.schedule();
  59     }
  60 }