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

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