bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/adapter/impl/TrashBinRemover.java

   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.db.layer0.adapter.impl;
  13
  14 import org.simantics.db.Resource;
  15 import org.simantics.db.WriteGraph;
  16 import org.simantics.db.common.utils.NameUtils;
  17 import org.simantics.db.exception.DatabaseException;
  18 import org.simantics.db.layer0.internal.SimanticsInternal;
  19 import org.simantics.db.layer0.util.Layer0Utils;
  20 import org.simantics.layer0.Layer0;
  21
  22 /**
  23  * @author Antti Villberg
  24  */
  25 public class TrashBinRemover extends AbstractRemover {
  26
  27     public TrashBinRemover(Resource resource) {
  28         super(resource);
  29     }
  30
  31     @Override
  32     public void remove(final WriteGraph graph) throws DatabaseException {
  33
  34         Layer0 L0 = Layer0.getInstance(graph);
  35
  36         Resource project = SimanticsInternal.getProject();
  37         Resource parent = graph.getSingleObject(project, L0.PartOf);
  38         Resource trashBin = Layer0Utils.getPossibleChild(graph, parent, "TrashBin");
  39         if(trashBin == null) throw new DatabaseException("TrashBin resource could not be located.");
  40
  41         String oldName = graph.getPossibleRelatedValue2(resource, L0.HasName);
  42         if (oldName != null) {
  43             String newName = NameUtils.findFreshName(graph, oldName, trashBin);
  44             graph.claimLiteral(resource, L0.HasName, newName);
  45         }
  46         graph.deny(resource, L0.PartOf);
  47         graph.claim(trashBin, L0.ConsistsOf, L0.PartOf, resource);
  48     }
  49
  50 }