bundles/org.simantics.db.common/src/org/simantics/db/common/request/SuperTypeString.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 java.util.Set;\r
  15 \r
  16 import org.simantics.databoard.Bindings;\r
  17 import org.simantics.db.ReadGraph;\r
  18 import org.simantics.db.Resource;\r
  19 import org.simantics.db.common.utils.Logger;\r
  20 import org.simantics.db.exception.DatabaseException;\r
  21 import org.simantics.layer0.Layer0;\r
  22 \r
  23 public class SuperTypeString extends BinaryRead<Resource, String, String> {\r
  24 \r
  25     public SuperTypeString(Resource type) {\r
  26         super(type, " ");\r
  27     }\r
  28 \r
  29     public SuperTypeString(Resource type, String separator) {\r
  30         super(type, separator);\r
  31         if (separator == null)\r
  32             throw new NullPointerException("null separator");\r
  33     }\r
  34 \r
  35     @Override\r
  36     public String perform(ReadGraph graph) throws DatabaseException {\r
  37         \r
  38         Layer0 L0 = Layer0.getInstance(graph);\r
  39         Set<Resource> supers = graph.getSupertypes(parameter);\r
  40         final StringBuilder b = new StringBuilder();\r
  41         String name = graph.getPossibleRelatedValue(parameter, L0.HasName, Bindings.STRING);\r
  42         if(name != null) {\r
  43                 b.append(name);\r
  44             for (Resource r : supers) {\r
  45                 name = graph.getPossibleRelatedValue(r, L0.HasName, Bindings.STRING);\r
  46                 if(name != null) {\r
  47                         b.append(parameter2);\r
  48                         b.append(name);\r
  49                 } else {\r
  50                         Logger.defaultLogError(new DatabaseException("No name for type " + r));\r
  51                 }\r
  52             }\r
  53         } else {\r
  54                 Logger.defaultLogError(new DatabaseException("No name for type " + parameter));\r
  55         }\r
  56         \r
  57         return b.toString();\r
  58 \r
  59     }\r
  60 \r
  61 }