bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/DefaultTerminalNamingStrategy.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2012 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  *     Semantum Oy - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.modeling.ui.diagramEditor;\r
  13 \r
  14 import org.simantics.db.ReadGraph;\r
  15 import org.simantics.db.Resource;\r
  16 import org.simantics.db.common.request.UnaryRead;\r
  17 import org.simantics.db.common.utils.NameUtils;\r
  18 import org.simantics.db.exception.DatabaseException;\r
  19 import org.simantics.diagram.synchronization.graph.DiagramGraphUtil;\r
  20 import org.simantics.g2d.diagram.participant.pointertool.TerminalUtil.TerminalInfo;\r
  21 import org.simantics.g2d.element.ElementUtils;\r
  22 import org.simantics.layer0.Layer0;\r
  23 import org.simantics.modeling.ModelingResources;\r
  24 import org.simantics.modeling.ui.diagramEditor.TerminalInformer.TerminalNamingStrategy;\r
  25 import org.simantics.structural.stubs.StructuralResource2;\r
  26 import org.simantics.structural2.queries.Terminal;\r
  27 \r
  28 /**\r
  29  * @author Tuukka Lehtonen\r
  30  */\r
  31 public final class DefaultTerminalNamingStrategy implements TerminalNamingStrategy {\r
  32 \r
  33     @Override\r
  34     public String getName(ReadGraph graph, TerminalInfo info) throws DatabaseException {\r
  35         Terminal t = graph.syncRequest(new ResolveTerminal(info));\r
  36         if (t == null)\r
  37             return "Could not resolve component terminal";\r
  38         return graph.syncRequest(new TerminalMessage(t));\r
  39     }\r
  40 \r
  41     public static class ResolveTerminal extends UnaryRead<TerminalInfo, Terminal> {\r
  42 \r
  43         public ResolveTerminal(TerminalInfo parameter) {\r
  44             super(parameter);\r
  45         }\r
  46 \r
  47         @Override\r
  48         public Terminal perform(ReadGraph graph) throws DatabaseException {\r
  49             ModelingResources mr = ModelingResources.getInstance(graph);\r
  50 \r
  51             Object elementObject = ElementUtils.getObject(parameter.e);\r
  52             if (!(elementObject instanceof Resource))\r
  53                 return null;\r
  54             Resource element = (Resource) elementObject;\r
  55 \r
  56             Resource diagramBindingRelation = DiagramGraphUtil.getConnectionPointOfTerminal(graph, parameter.t);\r
  57             if (diagramBindingRelation == null)\r
  58                 return null;\r
  59 \r
  60             Resource component = graph.getPossibleObject(element, mr.ElementToComponent);\r
  61             Resource connectionRelation = graph.getPossibleObject(diagramBindingRelation, mr.DiagramConnectionRelationToConnectionRelation);\r
  62             if (component == null || connectionRelation == null)\r
  63                 return null;\r
  64 \r
  65             return new Terminal(component, connectionRelation);\r
  66         }\r
  67 \r
  68     }\r
  69 \r
  70     static class TerminalMessage extends UnaryRead<Terminal, String> {\r
  71 \r
  72         public TerminalMessage(Terminal terminal) {\r
  73             super(terminal);\r
  74         }\r
  75 \r
  76         @Override\r
  77         public String perform(ReadGraph graph) throws DatabaseException {\r
  78             Layer0 L0 = Layer0.getInstance(graph);\r
  79             StructuralResource2 STR = StructuralResource2.getInstance(graph);\r
  80 \r
  81             String name = getStringPropertyValue(graph, parameter.getRelation(), L0.HasName);\r
  82             String label = getStringPropertyValue(graph, parameter.getRelation(), L0.HasLabel);\r
  83             String componentName = NameUtils.getSafeName(graph, parameter.getComponent());\r
  84             Resource componentType = graph.getPossibleType(parameter.getComponent(), STR.Component);\r
  85             String componentTypeName = componentType != null\r
  86                     ? getStringPropertyValue(graph, componentType, L0.HasLabel)\r
  87                     : null;\r
  88 \r
  89             StringBuilder sb = new StringBuilder();\r
  90             if (name.equals(label)) {\r
  91                 sb.append(name);\r
  92             } else {\r
  93                 sb.append("(").append(name).append(") ").append(label);\r
  94             }\r
  95             sb.append(" [").append(componentName);\r
  96             if (componentTypeName != null)\r
  97                 sb.append(" : ").append(componentTypeName);\r
  98             sb.append("]");\r
  99 \r
 100             return sb.toString();\r
 101         }\r
 102 \r
 103         private String getStringPropertyValue(ReadGraph graph, Resource entity, Resource property) throws DatabaseException {\r
 104             String name = graph.getPossibleRelatedValue2(entity, property);\r
 105             return name != null ? name : NameUtils.getSafeName(graph, entity);\r
 106         }\r
 107 \r
 108     }\r
 109 \r
 110 }\r