bundles/org.simantics.db.common/src/org/simantics/db/common/request/MappedPartsAsync.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.db.common.request;\r
  13 \r
  14 import java.util.HashMap;\r
  15 import java.util.Map;\r
  16 \r
  17 import org.simantics.db.AsyncReadGraph;\r
  18 import org.simantics.db.Resource;\r
  19 import org.simantics.db.common.ProcedureBarrier;\r
  20 import org.simantics.db.procedure.AsyncMultiProcedure;\r
  21 import org.simantics.db.procedure.AsyncProcedure;\r
  22 import org.simantics.layer0.Layer0;\r
  23 import org.simantics.operation.Layer0X;\r
  24 \r
  25 public class MappedPartsAsync extends ResourceAsyncRead<Map<Resource, Resource>> {\r
  26 \r
  27     public MappedPartsAsync(Resource realization) {\r
  28         super(realization);\r
  29     }\r
  30     \r
  31     @Override\r
  32     public void perform(AsyncReadGraph graph, final AsyncProcedure<Map<Resource, Resource>> procedure) {\r
  33 \r
  34         final Layer0 L0 = graph.getService(Layer0.class);\r
  35         final Layer0X L0X = graph.getService(Layer0X.class);\r
  36         final HashMap<Resource, Resource> result = new HashMap<Resource, Resource>();\r
  37         final ProcedureBarrier<Map<Resource, Resource>> ready = new ProcedureBarrier<Map<Resource, Resource>>(1);\r
  38         \r
  39         graph.forEachObject(resource, L0.ConsistsOf, new AsyncMultiProcedure<Resource>() {\r
  40 \r
  41                         @Override\r
  42                         public void execute(AsyncReadGraph graph, final Resource object) {\r
  43                                 \r
  44                                 ready.incrementAndGet();\r
  45                                 \r
  46                                 graph.forEachObject(object, L0X.Represents, new AsyncMultiProcedure<Resource>() {\r
  47 \r
  48                                         @Override\r
  49                                         public void execute(AsyncReadGraph graph, Resource mapped) {\r
  50 \r
  51                                                 synchronized(result) {\r
  52                                                         result.put(mapped, object);\r
  53                                                 }\r
  54 \r
  55                                         }\r
  56 \r
  57                                         @Override\r
  58                                         public void finished(AsyncReadGraph graph) {\r
  59 \r
  60                                                 ready.dec(graph, procedure, result);\r
  61 \r
  62                                         }\r
  63 \r
  64                                         @Override\r
  65                                         public void exception(AsyncReadGraph graph, Throwable throwable) {\r
  66 \r
  67                                                 ready.except(throwable);\r
  68                                                 ready.dec(graph, procedure, result);\r
  69 \r
  70                                         }\r
  71 \r
  72                                 });\r
  73                                 \r
  74                         }\r
  75 \r
  76                         @Override\r
  77                         public void finished(AsyncReadGraph graph) {\r
  78                                 \r
  79                                 ready.dec(graph, procedure, result);\r
  80                                 \r
  81                         }\r
  82 \r
  83                         @Override\r
  84                         public void exception(AsyncReadGraph graph, Throwable throwable) {\r
  85                                 \r
  86                                 ready.except(throwable);\r
  87                                 ready.dec(graph, procedure, result);\r
  88                                 \r
  89                         }\r
  90                 \r
  91         });\r
  92         \r
  93     }\r
  94     \r
  95 //    @Override\r
  96 //    public Map<Resource, Resource> perform(ReadGraph graph) throws DatabaseException {\r
  97 //        \r
  98 //        Builtins b = graph.getBuiltins();\r
  99 //        Map<Resource, Resource> result = new HashMap<Resource, Resource>();\r
 100 //        \r
 101 //        for(Resource part : graph.syncRequest(new ObjectsWithType(resource, b.ConsistsOf, resource2))) {\r
 102 //              Resource represents = graph.getPossibleObject(part, b.Represents);\r
 103 //              if(represents != null) result.put(represents, part);\r
 104 //        }\r
 105 //        \r
 106 //        return result;\r
 107 //        \r
 108 //    }\r
 109 \r
 110 }\r