bundles/org.simantics.diagram/src/org/simantics/diagram/adapter/NodeClassRequest.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.adapter;
  13
  14 import org.simantics.db.AsyncReadGraph;
  15 import org.simantics.db.Resource;
  16 import org.simantics.db.procedure.AsyncProcedure;
  17 import org.simantics.g2d.canvas.ICanvasContext;
  18 import org.simantics.g2d.diagram.IDiagram;
  19 import org.simantics.g2d.element.ElementClass;
  20
  21 public class NodeClassRequest extends BaseRequest2<Resource, ElementClass> {
  22
  23     private final IDiagram diagram;
  24     private final boolean exceptionOnAdaptionFailure;
  25
  26     public NodeClassRequest(ICanvasContext canvas, IDiagram diagram, Resource resource) {
  27         this(canvas, diagram, resource, false);
  28     }
  29
  30     public NodeClassRequest(ICanvasContext canvas, IDiagram diagram, Resource resource, boolean exceptionOnAdaptionFailure) {
  31         super(canvas, resource);
  32         this.diagram = diagram;
  33         this.exceptionOnAdaptionFailure = exceptionOnAdaptionFailure;
  34     }
  35
  36     @Override
  37     public void perform(AsyncReadGraph graph, final AsyncProcedure<ElementClass> procedure) {
  38
  39 //        System.out.println("NodeClassRequest " + data.getResourceId());
  40 //        graph.asyncRequest(new SafeName(data), new Procedure<String>() {
  41 //            @Override
  42 //            public void exception(Throwable t) {
  43 //            }
  44 //            @Override
  45 //            public void execute(String result) {
  46 //                System.out.println("NodeClassRequest "  + result);
  47 //                debug = result;
  48 //            }
  49 //        });
  50
  51         graph.forAdapted(data, ElementFactory.class, new AsyncProcedure<ElementFactory>() {
  52
  53             @Override
  54             public void exception(AsyncReadGraph graph, Throwable throwable) {
  55                 if (exceptionOnAdaptionFailure)
  56                     procedure.exception(graph, throwable);
  57                 else
  58                     procedure.execute(graph, null);
  59             }
  60
  61             @Override
  62             public void execute(AsyncReadGraph graph, final ElementFactory factory) {
  63
  64 //                System.out.println("NodeClassRequest factory " + data.getResourceId() + " = " + factory.getClass().getName());
  65 //                graph.asyncRequest(new SafeName(data), new Procedure<String>() {
  66 //                    @Override
  67 //                    public void exception(Throwable t) {
  68 //                    }
  69 //                    @Override
  70 //                    public void execute(String result) {
  71 //                        System.out.println("NodeClassRequest "  + result + " " + factory.getClass().getName());
  72 //                        debug = result;
  73 //                    }
  74 //                });
  75
  76                 if (factory == null) {
  77                     // Should never happen since we are using forAdapted
  78                     System.out.println("No factory in NodeClassRequest! " + this);
  79                     procedure.execute(graph, null);
  80                     return;
  81                 }
  82
  83                 factory.create(graph, canvas, diagram, data, new AsyncProcedure<ElementClass>() {
  84
  85                     @Override
  86                     public void exception(AsyncReadGraph graph, Throwable throwable) {
  87                         procedure.exception(graph, throwable);
  88                     }
  89
  90                     @Override
  91                     public void execute(AsyncReadGraph graph, ElementClass ec) {
  92 //                        System.out.println("Produced element class " + ec);
  93                         procedure.execute(graph, ec);
  94                     }
  95
  96                 });
  97
  98             }
  99
 100         });
 101
 102     }
 103
 104 }