bundles/org.simantics.diagram/src/org/simantics/diagram/synchronization/graph/AssociativeCopyAdvisor.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.diagram.synchronization.graph;
  13
  14 import java.util.Map;
  15
  16 import org.simantics.db.Resource;
  17 import org.simantics.db.WriteGraph;
  18 import org.simantics.db.exception.DatabaseException;
  19 import org.simantics.diagram.synchronization.CopyAdvisor;
  20 import org.simantics.diagram.synchronization.ISynchronizationContext;
  21 import org.simantics.layer0.utils.direct.GraphUtils.ResourceTester;
  22
  23 /**
  24  * @author Tuukka Lehtonen
  25  */
  26 public class AssociativeCopyAdvisor extends GraphCopyAdvisor {
  27
  28     Map<ResourceTester, CopyAdvisor> advisors;
  29
  30     public AssociativeCopyAdvisor(Map<ResourceTester, CopyAdvisor> advisors) {
  31         this.advisors = advisors;
  32     }
  33
  34     @Override
  35     public Evaluation canCopy(ISynchronizationContext context, WriteGraph graph, Resource source,
  36             Resource sourceContainer, Resource targetContainer) throws DatabaseException {
  37         for (Map.Entry<ResourceTester, CopyAdvisor> entry : advisors.entrySet()) {
  38             if (!entry.getKey().test(graph, source))
  39                 continue;
  40             Evaluation eval = entry.getValue().canCopy(context, source, sourceContainer, targetContainer);
  41             if (eval == Evaluation.SUPPORTED)
  42                 return eval;
  43         }
  44         return Evaluation.NOT_SUPPORTED;
  45     }
  46
  47     @Override
  48     public Object copy(ISynchronizationContext context, WriteGraph graph, Resource source, Resource sourceContainer,
  49             Resource targetContainer) throws DatabaseException {
  50         for (Map.Entry<ResourceTester, CopyAdvisor> entry : advisors.entrySet()) {
  51             if (!entry.getKey().test(graph, source))
  52                 continue;
  53             Object copy = entry.getValue().copy(context, source, sourceContainer, targetContainer);
  54             if (copy != null)
  55                 return copy;
  56         }
  57         return null;
  58     }
  59
  60     @Override
  61     public Object copy(ISynchronizationContext context, WriteGraph graph, Resource source, Resource sourceContainer,
  62             Resource targetContainer, Map<Object, Object> map) throws DatabaseException {
  63         for (Map.Entry<ResourceTester, CopyAdvisor> entry : advisors.entrySet()) {
  64             if (!entry.getKey().test(graph, source))
  65                 continue;
  66             Object copy = entry.getValue().copy(context, source, sourceContainer, targetContainer, map);
  67             if (copy != null)
  68                 return copy;
  69         }
  70         return null;
  71     }
  72
  73     @Override
  74     public Object cut(ISynchronizationContext context, WriteGraph graph, Resource source, Resource sourceContainer,
  75             Resource targetContainer) throws DatabaseException {
  76         for (Map.Entry<ResourceTester, CopyAdvisor> entry : advisors.entrySet()) {
  77             if (!entry.getKey().test(graph, source))
  78                 continue;
  79             Object cut = entry.getValue().cut(context, source, sourceContainer, targetContainer);
  80             if (cut != null)
  81                 return cut;
  82         }
  83         return null;
  84     }
  85
  86 }