bundles/org.simantics.modeling/src/org/simantics/modeling/typicals/AvailableSynchronizationRules.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2012 Association for Decentralized Information Management in\r
   3  * 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.modeling.typicals;\r
  13 \r
  14 import java.util.ArrayList;\r
  15 import java.util.Collection;\r
  16 import java.util.HashSet;\r
  17 import java.util.Set;\r
  18 \r
  19 import org.simantics.db.ReadGraph;\r
  20 import org.simantics.db.Resource;\r
  21 import org.simantics.db.common.NamedResource;\r
  22 import org.simantics.db.common.request.ObjectsWithType;\r
  23 import org.simantics.db.common.request.ResourceRead;\r
  24 import org.simantics.db.common.utils.NameUtils;\r
  25 import org.simantics.db.exception.DatabaseException;\r
  26 import org.simantics.diagram.stubs.DiagramResource;\r
  27 import org.simantics.layer0.Layer0;\r
  28 import org.simantics.modeling.ModelingResources;\r
  29 \r
  30 public class AvailableSynchronizationRules extends ResourceRead<Collection<NamedResource>> {\r
  31 \r
  32         public AvailableSynchronizationRules(Resource resource) {\r
  33                 super(resource);\r
  34         }\r
  35 \r
  36         @Override\r
  37         public Collection<NamedResource> perform(ReadGraph graph)\r
  38                         throws DatabaseException {\r
  39 \r
  40                 Layer0 L0 = Layer0.getInstance(graph);\r
  41                 DiagramResource DIA = DiagramResource.getInstance(graph);\r
  42 \r
  43                 Set<Resource> rules = new HashSet<Resource>();\r
  44                 tryAddRules(graph, resource, rules);\r
  45                 for (Resource element : graph.syncRequest(new ObjectsWithType(resource, L0.ConsistsOf, DIA.Element))) {\r
  46                         tryAddRules(graph, element, rules);\r
  47                 }\r
  48 \r
  49                 Collection<NamedResource> result = new ArrayList<>();\r
  50                 for(Resource rule : rules) {\r
  51                         String name = NameUtils.getSafeLabel(graph, rule);\r
  52                         result.add(new NamedResource(name, rule));\r
  53                 }\r
  54 \r
  55                 return result;\r
  56         }\r
  57 \r
  58         private int tryAddRules(ReadGraph graph, Resource r, Set<Resource> rules) throws DatabaseException {\r
  59                 ModelingResources MOD = ModelingResources.getInstance(graph);\r
  60                 int count = 0;\r
  61                 for (Resource ruleResource : graph.getObjects(r, MOD.HasTypicalSynchronizationRule)) {\r
  62                         ITypicalSynchronizationRule rule = graph.getPossibleAdapter(ruleResource, ITypicalSynchronizationRule.class);\r
  63                         if (rule != null && rules.add(ruleResource))\r
  64                                 ++count;\r
  65                 }\r
  66                 return count;\r
  67         }\r
  68 \r
  69 }