bundles/org.simantics.diagram/src/org/simantics/diagram/adapter/NodeClassRequest.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.procedure.AsyncProcedure;\r
  17 import org.simantics.g2d.canvas.ICanvasContext;\r
  18 import org.simantics.g2d.diagram.IDiagram;\r
  19 import org.simantics.g2d.element.ElementClass;\r
  20 \r
  21 public class NodeClassRequest extends BaseRequest2<Resource, ElementClass> {\r
  22 \r
  23     private final IDiagram diagram;\r
  24     private final boolean exceptionOnAdaptionFailure;\r
  25 \r
  26     public NodeClassRequest(ICanvasContext canvas, IDiagram diagram, Resource resource) {\r
  27         this(canvas, diagram, resource, false);\r
  28     }\r
  29 \r
  30     public NodeClassRequest(ICanvasContext canvas, IDiagram diagram, Resource resource, boolean exceptionOnAdaptionFailure) {\r
  31         super(canvas, resource);\r
  32         this.diagram = diagram;\r
  33         this.exceptionOnAdaptionFailure = exceptionOnAdaptionFailure;\r
  34     }\r
  35 \r
  36     @Override\r
  37     public void perform(AsyncReadGraph graph, final AsyncProcedure<ElementClass> procedure) {\r
  38 \r
  39 //        System.out.println("NodeClassRequest " + data.getResourceId());\r
  40 //        graph.asyncRequest(new SafeName(data), new Procedure<String>() {\r
  41 //            @Override\r
  42 //            public void exception(Throwable t) {\r
  43 //            }\r
  44 //            @Override\r
  45 //            public void execute(String result) {\r
  46 //                System.out.println("NodeClassRequest "  + result);\r
  47 //                debug = result;\r
  48 //            }\r
  49 //        });\r
  50 \r
  51         graph.forAdapted(data, ElementFactory.class, new AsyncProcedure<ElementFactory>() {\r
  52 \r
  53             @Override\r
  54             public void exception(AsyncReadGraph graph, Throwable throwable) {\r
  55                 if (exceptionOnAdaptionFailure)\r
  56                     procedure.exception(graph, throwable);\r
  57                 else\r
  58                     procedure.execute(graph, null);\r
  59             }\r
  60 \r
  61             @Override\r
  62             public void execute(AsyncReadGraph graph, final ElementFactory factory) {\r
  63 \r
  64 //                System.out.println("NodeClassRequest factory " + data.getResourceId() + " = " + factory.getClass().getName());\r
  65 //                graph.asyncRequest(new SafeName(data), new Procedure<String>() {\r
  66 //                    @Override\r
  67 //                    public void exception(Throwable t) {\r
  68 //                    }\r
  69 //                    @Override\r
  70 //                    public void execute(String result) {\r
  71 //                        System.out.println("NodeClassRequest "  + result + " " + factory.getClass().getName());\r
  72 //                        debug = result;\r
  73 //                    }\r
  74 //                });\r
  75 \r
  76                 if (factory == null) {\r
  77                     // Should never happen since we are using forAdapted\r
  78                     System.out.println("No factory in NodeClassRequest! " + this);\r
  79                     procedure.execute(graph, null);\r
  80                     return;\r
  81                 }\r
  82 \r
  83                 factory.create(graph, canvas, diagram, data, new AsyncProcedure<ElementClass>() {\r
  84 \r
  85                     @Override\r
  86                     public void exception(AsyncReadGraph graph, Throwable throwable) {\r
  87                         procedure.exception(graph, throwable);\r
  88                     }\r
  89 \r
  90                     @Override\r
  91                     public void execute(AsyncReadGraph graph, ElementClass ec) {\r
  92 //                        System.out.println("Produced element class " + ec);\r
  93                         procedure.execute(graph, ec);\r
  94                     }\r
  95 \r
  96                 });\r
  97 \r
  98             }\r
  99 \r
 100         });\r
 101 \r
 102     }\r
 103 \r
 104 }\r