bundles/org.simantics.graph.compiler/src/org/simantics/graph/compiler/internal/templates/LoadDataValueTemplate.java

   1 package org.simantics.graph.compiler.internal.templates;
   2
   3 import java.io.IOException;
   4 import java.util.Collection;
   5
   6 import org.simantics.databoard.Bindings;
   7 import org.simantics.databoard.binding.mutable.Variant;
   8 import org.simantics.databoard.serialization.Serializer;
   9 import org.simantics.graph.compiler.ExternalFileLoader;
  10 import org.simantics.graph.compiler.internal.store.LocationStore;
  11 import org.simantics.graph.compiler.internal.store.PreValueStore;
  12 import org.simantics.graph.query.IGraph;
  13 import org.simantics.graph.store.GraphStore;
  14 import org.simantics.ltk.Location;
  15 import org.simantics.ltk.Problem;
  16
  17 public enum LoadDataValueTemplate implements ITemplate {
  18         INSTANCE;
  19
  20         @Override
  21         public void apply(IGraph graph, GraphStore store,
  22                         int[] parameters, ExternalFileLoader fileLoader, Collection<Problem> problems) {
  23                 String fileName = store.getStore(PreValueStore.class).getStringValue(parameters[1]);
  24                 if(fileName == null) {
  25                         Location location = store.getStore(LocationStore.class)
  26                         .getLocation(parameters[1]);
  27                         problems.add(new Problem(
  28                                 location, "Expected a string"));
  29                 }
  30                 try {
  31                     byte[] bytes = fileLoader.load(fileName);
  32                     Serializer variantSerializer = Bindings.getSerializerUnchecked(Bindings.VARIANT);
  33                     Variant value = (Variant)variantSerializer.deserialize(bytes);
  34                         store.values.setValue(parameters[0], value);
  35                 } catch (IOException e) {
  36                         Location location = store.getStore(LocationStore.class)
  37                                 .getLocation(parameters[1]);
  38                         problems.add(new Problem(
  39                                 location, e.getMessage()));
  40                 }
  41         }
  42
  43 }