bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/migration/OntologiesFromLibrary.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012 Association for Decentralized Information Management in
   3  * 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.migration;
  13
  14 import java.util.ArrayList;
  15 import java.util.List;
  16
  17 import org.simantics.db.ReadGraph;
  18 import org.simantics.db.Resource;
  19 import org.simantics.db.common.request.ObjectsWithType;
  20 import org.simantics.db.common.request.ResourceRead;
  21 import org.simantics.db.exception.DatabaseException;
  22 import org.simantics.db.request.RequestFlags;
  23 import org.simantics.layer0.Layer0;
  24
  25 public class OntologiesFromLibrary extends ResourceRead<List<Resource>> {
  26
  27     public OntologiesFromLibrary(Resource library) {
  28         super(library);
  29     }
  30
  31     @Override
  32     public List<Resource> perform(ReadGraph graph) throws DatabaseException {
  33         Layer0 L0 = Layer0.getInstance(graph);
  34         ArrayList<Resource> result = new ArrayList<Resource>();
  35         for(Resource r : graph.syncRequest(new ObjectsWithType(resource, L0.ConsistsOf, L0.Library))) {
  36             if(graph.isInstanceOf(r, L0.IndexRoot)) {
  37                 if(graph.isInstanceOf(r, L0.Ontology)) {
  38                     result.add(r);
  39                 }
  40             } else {
  41                 result.addAll(graph.syncRequest(new OntologiesFromLibrary(r)));
  42             }
  43         }
  44         return result;
  45     }
  46
  47     @Override
  48     public int getType() {
  49         return RequestFlags.IMMEDIATE_UPDATE;
  50     }
  51
  52 }