bundles/org.simantics.graph.compiler/src/org/simantics/graph/compiler/internal/procedures/Compactify.java

   1 package org.simantics.graph.compiler.internal.procedures;\r
   2 \r
   3 import gnu.trove.map.hash.TIntIntHashMap;\r
   4 \r
   5 import org.simantics.graph.store.GraphStore;\r
   6 \r
   7 public class Compactify implements Runnable {\r
   8         GraphStore store;\r
   9 \r
  10         public Compactify(GraphStore store) {\r
  11                 this.store = store;\r
  12         }\r
  13 \r
  14         @Override\r
  15         public void run() {\r
  16                 // Mark all used resources\r
  17                 int resourceCount = store.identities.getResourceCount();\r
  18                 final boolean[] temp = new boolean[resourceCount];\r
  19                 store.collectReferences(temp);\r
  20                 \r
  21                 // Create a map\r
  22                 int newResourceCount = 0;\r
  23                 TIntIntHashMap map = new TIntIntHashMap(resourceCount);\r
  24                 for(int i=0;i<resourceCount;++i)\r
  25                         if(temp[i])\r
  26                                 map.put(i, newResourceCount++);\r
  27                 if(newResourceCount < resourceCount) {\r
  28                         store.map(map);\r
  29                         store.identities.setResourceCount(newResourceCount);\r
  30                 }\r
  31         }\r
  32 }\r