bundles/org.simantics.diagram/src/org/simantics/diagram/adapter/DefaultConnectionClassFactory.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.diagram.adapter;\r
  13 \r
  14 import org.simantics.db.AsyncReadGraph;\r
  15 import org.simantics.db.Resource;\r
  16 import org.simantics.db.common.procedure.guarded.GuardedAsyncProcedureWrapper;\r
  17 import org.simantics.db.procedure.AsyncProcedure;\r
  18 import org.simantics.diagram.stubs.DiagramResource;\r
  19 import org.simantics.diagram.synchronization.graph.DiagramGraphUtil;\r
  20 import org.simantics.g2d.canvas.ICanvasContext;\r
  21 import org.simantics.g2d.diagram.DiagramHints;\r
  22 import org.simantics.g2d.diagram.IDiagram;\r
  23 import org.simantics.g2d.element.ElementClass;\r
  24 import org.simantics.g2d.element.IElement;\r
  25 import org.simantics.g2d.element.handler.impl.StaticObjectAdapter;\r
  26 import org.simantics.g2d.elementclass.connection.ConnectionClass;\r
  27 import org.simantics.g2d.routing.IRouter2;\r
  28 import org.simantics.structural.stubs.StructuralResource2;\r
  29 \r
  30 /**\r
  31  * An element class for single connection entity elements. A connection entity\r
  32  * consists of connection edge segments and branch points as its children.\r
  33  * \r
  34  * @author Tuukka Lehtonen\r
  35  */\r
  36 public class DefaultConnectionClassFactory extends ElementFactoryAdapter {\r
  37 \r
  38     public static final ElementClass CLASS = ConnectionClass.CLASS;\r
  39 \r
  40     @Override\r
  41     public void create(AsyncReadGraph graph, ICanvasContext canvas, IDiagram diagram, Resource elementType, final AsyncProcedure<ElementClass> procedure) {\r
  42         procedure.execute(graph, ConnectionClass.CLASS.newClassWith(false, new StaticObjectAdapter(elementType)));\r
  43     }\r
  44 \r
  45     @Override\r
  46     protected Resource getElementClassBaseType(AsyncReadGraph graph) {\r
  47         return graph.getService(DiagramResource.class).Connection;\r
  48     }\r
  49 \r
  50     @Override\r
  51     public void load(AsyncReadGraph graph, ICanvasContext canvas, IDiagram diagram, final Resource elementResource,\r
  52             final IElement element, final AsyncProcedure<IElement> procedure) {\r
  53         final GuardedAsyncProcedureWrapper<IElement> guard = new GuardedAsyncProcedureWrapper<IElement>(procedure, 1);\r
  54 \r
  55         // Get custom routing algorithm for connection if necessary.\r
  56         DiagramGraphUtil.getPossibleRouter(graph, elementResource, new AsyncProcedure<IRouter2>() {\r
  57             @Override\r
  58             public void exception(AsyncReadGraph graph, Throwable throwable) {\r
  59                 guard.exception(graph, throwable);\r
  60             }\r
  61             @Override\r
  62             public void execute(AsyncReadGraph graph, IRouter2 router) {\r
  63                 if (router != null) {\r
  64                     element.setHint(DiagramHints.ROUTE_ALGORITHM, router);\r
  65                     procedure.execute(graph, element);\r
  66                 } else {\r
  67                     loadConnectionTypeDefaultRouting(graph, element, elementResource, guard);\r
  68                 }\r
  69             }\r
  70         });\r
  71     }\r
  72 \r
  73     protected void loadConnectionTypeDefaultRouting(AsyncReadGraph graph, final IElement element, Resource elementResource, final AsyncProcedure<IElement> guard) {\r
  74         StructuralResource2 STR = graph.getService(StructuralResource2.class);\r
  75         graph.forPossibleObject(elementResource, STR.HasConnectionType, new AsyncProcedure<Resource>() {\r
  76             @Override\r
  77             public void exception(AsyncReadGraph graph, Throwable throwable) {\r
  78                 guard.exception(graph, throwable);\r
  79             }\r
  80             @Override\r
  81             public void execute(AsyncReadGraph graph, Resource connectionType) {\r
  82                 DiagramResource DIA = graph.getService(DiagramResource.class);\r
  83                 if (connectionType != null) {\r
  84                     graph.forPossibleObject(connectionType, DIA.HasDefaultRouting, new AsyncProcedure<Resource>() {\r
  85                         @Override\r
  86                         public void exception(AsyncReadGraph graph, Throwable throwable) {\r
  87                             guard.exception(graph, throwable);\r
  88                         }\r
  89                         @Override\r
  90                         public void execute(AsyncReadGraph graph, Resource routing) {\r
  91                             if (routing != null) {\r
  92                                 graph.forPossibleAdapted(routing, IRouter2.class, new AsyncProcedure<IRouter2>() {\r
  93                                     @Override\r
  94                                     public void exception(AsyncReadGraph graph, Throwable throwable) {\r
  95                                         guard.exception(graph, throwable);\r
  96                                     }\r
  97                                     @Override\r
  98                                     public void execute(AsyncReadGraph graph, IRouter2 router) {\r
  99                                         if (router != null)\r
 100                                             element.setHint(DiagramHints.ROUTE_ALGORITHM, router);\r
 101                                         guard.execute(graph, element);\r
 102                                     }\r
 103                                 });\r
 104                             } else {\r
 105                                 guard.execute(graph, element);\r
 106                             }\r
 107                         }\r
 108                     });\r
 109                 } else {\r
 110                     guard.execute(graph, element);\r
 111                 }\r
 112             }\r
 113         });\r
 114     }\r
 115 \r
 116 }\r