bundles/org.simantics.graph/src/org/simantics/graph/refactoring/TransferableGraphHasher.java

   1 package org.simantics.graph.refactoring;
   2
   3 import java.nio.file.Path;
   4 import java.nio.file.Paths;
   5
   6 import org.simantics.databoard.Bindings;
   7 import org.simantics.databoard.adapter.AdaptException;
   8 import org.simantics.databoard.binding.Binding;
   9 import org.simantics.databoard.binding.error.BindingException;
  10 import org.simantics.databoard.binding.mutable.Variant;
  11 import org.simantics.databoard.container.DataContainer;
  12 import org.simantics.databoard.container.DataContainers;
  13 import org.simantics.graph.representation.Extensions;
  14 import org.simantics.graph.representation.TransferableGraph1;
  15
  16 /**
  17  * @author Tuukka Lehtonen
  18  * @since 1.34.0
  19  */
  20 public class TransferableGraphHasher {
  21
  22         public static int hashTG(TransferableGraph1 tg) throws BindingException {
  23                 return TransferableGraph1.BINDING.hashValue(tg);
  24         }
  25
  26         public static DataContainer addHashToTG(DataContainer tgContainer, TransferableGraph1 tg) throws BindingException {
  27                 Binding tgb = TransferableGraph1.BINDING;
  28                 tgContainer.metadata.put(Extensions.CACHED_HASHCODE, new Variant(Bindings.INTEGER, hashTG(tg)));
  29                 tgContainer.content = new Variant(tgb, tg);
  30                 return tgContainer;
  31         }
  32
  33         public static DataContainer addHashToTG(DataContainer tgContainer) throws BindingException, AdaptException {
  34                 return addHashToTG(tgContainer, (TransferableGraph1) tgContainer.content.getValue(TransferableGraph1.BINDING));
  35         }
  36
  37         public static void hashTG(Path input, Path output) throws Exception {
  38                 System.out.format("Adding cached hash value to transferable graph%n\t" + input.toString() + "%nto%n\t" + output.toString());
  39                 DataContainers.writeFile(output.toFile(),
  40                                 addHashToTG(
  41                                                 DataContainers.readFile(input.toFile(), TransferableGraph1.BINDING) ));
  42         }
  43
  44         public static void main(String[] args) throws Exception {
  45                 if (args.length == 0) {
  46                         System.out.println("Required arguments: <input graph.tg file> [<output .tg file>]");
  47                 } else if (args.length == 1) {
  48                         // In-place hash
  49                         Path p = Paths.get(args[0]);
  50                         hashTG(p, p);
  51                 } else {
  52                         hashTG(Paths.get(args[0]), Paths.get(args[1]));
  53                 }
  54         }
  55
  56 }