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