bundles/org.simantics.db.common/src/org/simantics/db/common/request/MappedTypedParts.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.common.request;
  13
  14 import java.util.HashMap;
  15 import java.util.Map;
  16
  17 import org.simantics.db.ReadGraph;
  18 import org.simantics.db.Resource;
  19 import org.simantics.db.exception.DatabaseException;
  20 import org.simantics.layer0.Layer0;
  21 import org.simantics.operation.Layer0X;
  22
  23 public class MappedTypedParts extends ResourceRead2<Map<Resource, Resource>> {
  24
  25     public MappedTypedParts(Resource realization, Resource type) {
  26         super(realization, type);
  27     }
  28
  29     @Override
  30     public Map<Resource, Resource> perform(ReadGraph graph) throws DatabaseException {
  31
  32         Layer0 l0 = Layer0.getInstance(graph);
  33         Layer0X L0X = Layer0X.getInstance(graph);
  34         Map<Resource, Resource> result = new HashMap<Resource, Resource>();
  35
  36         for(Resource part : graph.syncRequest(new ObjectsWithType(resource, l0.ConsistsOf, resource2))) {
  37                 Resource represents = graph.getPossibleObject(part, L0X.Represents);
  38                 if(represents != null) result.put(represents, part);
  39         }
  40
  41         return result;
  42
  43     }
  44
  45 }