bundles/org.simantics.db.common/src/org/simantics/db/common/request/PropertyMapOfResource.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.common.request;\r
  13 \r
  14 import gnu.trove.map.hash.THashMap;\r
  15 \r
  16 import java.util.Collection;\r
  17 import java.util.Map;\r
  18 \r
  19 import org.simantics.databoard.Bindings;\r
  20 import org.simantics.databoard.util.URIStringUtils;\r
  21 import org.simantics.db.ReadGraph;\r
  22 import org.simantics.db.Resource;\r
  23 import org.simantics.db.exception.DatabaseException;\r
  24 import org.simantics.layer0.Layer0;\r
  25 \r
  26 public class PropertyMapOfResource extends ResourceRead<Map<String, Resource>> {\r
  27 \r
  28         public PropertyMapOfResource(Resource resource) {\r
  29             super(resource);\r
  30         }\r
  31 \r
  32         @Override\r
  33         public Map<String,Resource> perform(ReadGraph graph) throws DatabaseException {\r
  34 \r
  35                 Layer0 L0 = Layer0.getInstance(graph);\r
  36                 Collection<Resource> predicates = graph.getPredicates(resource); \r
  37         THashMap<String, Resource> result = new THashMap<String, Resource>(predicates.size());\r
  38                 for(Resource predicate : predicates) {\r
  39                         if(graph.isSubrelationOf(predicate, L0.HasProperty)) {\r
  40                         String name = graph.getPossibleRelatedValue(predicate, L0.HasName, Bindings.STRING);\r
  41                         if(name != null) {\r
  42                                         String escapedName = URIStringUtils.escape(name); \r
  43                             if (result.put(escapedName, predicate) != null)\r
  44                                 System.err.println(this + ": The database contains siblings with the same name " + name + " (resource=$" + resource.getResourceId() +").");\r
  45                         }\r
  46                         }                               \r
  47                 }\r
  48                 return result;\r
  49                 \r
  50         }\r
  51         \r
  52 }\r