bundles/org.simantics.db.common/src/org/simantics/db/common/request/MappedTypedPartsAsync.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 import java.util.Set;\r
  17 \r
  18 import org.simantics.db.AsyncReadGraph;\r
  19 import org.simantics.db.Resource;\r
  20 import org.simantics.db.common.ProcedureBarrier;\r
  21 import org.simantics.db.procedure.AsyncMultiProcedure;\r
  22 import org.simantics.db.procedure.AsyncProcedure;\r
  23 import org.simantics.layer0.Layer0;\r
  24 import org.simantics.operation.Layer0X;\r
  25 \r
  26 public class MappedTypedPartsAsync extends ResourceAsyncRead2<Map<Resource, Resource>> {\r
  27 \r
  28     public MappedTypedPartsAsync(Resource realization, Resource type) {\r
  29         super(realization, type);\r
  30     }\r
  31     \r
  32     @Override\r
  33     public void perform(AsyncReadGraph graph, final AsyncProcedure<Map<Resource, Resource>> procedure) {\r
  34 \r
  35         final Layer0 L0 = graph.getService(Layer0.class);\r
  36         final Layer0X L0X = graph.getService(Layer0X.class);\r
  37         final HashMap<Resource, Resource> result = new HashMap<Resource, Resource>();\r
  38         final ProcedureBarrier<Map<Resource, Resource>> ready = new ProcedureBarrier<Map<Resource, Resource>>(1);\r
  39         \r
  40         graph.forEachObject(resource, L0.ConsistsOf, new AsyncMultiProcedure<Resource>() {\r
  41 \r
  42                         @Override\r
  43                         public void execute(AsyncReadGraph graph, final Resource object) {\r
  44                                 \r
  45                                 ready.incrementAndGet();\r
  46                                 \r
  47                                 graph.forTypes(object, new AsyncProcedure<Set<Resource>>() {\r
  48                                         \r
  49                                         @Override\r
  50                                         public void execute(AsyncReadGraph graph, Set<Resource> types) {\r
  51 \r
  52                                                 if(types.contains(resource2)) {\r
  53                                                         \r
  54                                                         graph.forEachObject(object, L0X.Represents, new AsyncMultiProcedure<Resource>() {\r
  55 \r
  56                                                                 @Override\r
  57                                                                 public void execute(AsyncReadGraph graph, Resource mapped) {\r
  58                                                                         \r
  59                                                                         synchronized(result) {\r
  60                                                                                 result.put(mapped, object);\r
  61                                                                         }\r
  62                                                                         \r
  63                                                                 }\r
  64 \r
  65                                                                 @Override\r
  66                                                                 public void finished(AsyncReadGraph graph) {\r
  67 \r
  68                                                                         ready.dec(graph, procedure, result);\r
  69                                                                         \r
  70                                                                 }\r
  71 \r
  72                                                                 @Override\r
  73                                                                 public void exception(AsyncReadGraph graph, Throwable throwable) {\r
  74                                                                         \r
  75                                                                         ready.except(throwable);\r
  76                                                                         ready.dec(graph, procedure, result);\r
  77                                                                         \r
  78                                                                 }\r
  79                                                                 \r
  80                                                         });\r
  81                                                         \r
  82                                                 } else {\r
  83                                                         \r
  84                                                         ready.dec(graph, procedure, result);\r
  85 \r
  86                                                 }\r
  87                                                 \r
  88                                         }\r
  89                                         \r
  90                                         @Override\r
  91                                         public void exception(AsyncReadGraph graph, Throwable throwable) {\r
  92                                                 \r
  93                                                 ready.except(throwable);\r
  94                                                 ready.dec(graph, procedure, result);\r
  95                                                 \r
  96                                         }\r
  97                                         \r
  98                                 });\r
  99                                 \r
 100                         }\r
 101 \r
 102                         @Override\r
 103                         public void finished(AsyncReadGraph graph) {\r
 104                                 \r
 105                                 ready.dec(graph, procedure, result);\r
 106                                 \r
 107                         }\r
 108 \r
 109                         @Override\r
 110                         public void exception(AsyncReadGraph graph, Throwable throwable) {\r
 111                                 \r
 112                                 ready.except(throwable);\r
 113                                 ready.dec(graph, procedure, result);\r
 114                                 \r
 115                         }\r
 116                 \r
 117         });\r
 118         \r
 119     }\r
 120     \r
 121 //    @Override\r
 122 //    public Map<Resource, Resource> perform(ReadGraph graph) throws DatabaseException {\r
 123 //        \r
 124 //        Builtins b = graph.getBuiltins();\r
 125 //        Map<Resource, Resource> result = new HashMap<Resource, Resource>();\r
 126 //        \r
 127 //        for(Resource part : graph.syncRequest(new ObjectsWithType(resource, b.ConsistsOf, resource2))) {\r
 128 //              Resource represents = graph.getPossibleObject(part, b.Represents);\r
 129 //              if(represents != null) result.put(represents, part);\r
 130 //        }\r
 131 //        \r
 132 //        return result;\r
 133 //        \r
 134 //    }\r
 135 \r
 136 }\r