Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.graph / src / org / simantics / graph / store / IndexMappingUtils.java

diff --git a/bundles/org.simantics.graph/src/org/simantics/graph/store/IndexMappingUtils.java b/bundles/org.simantics.graph/src/org/simantics/graph/store/IndexMappingUtils.java
new file mode 100644 (file)
index 0000000..29be57c
--- /dev/null
+++ b/bundles/org.simantics.graph/src/org/simantics/graph/store/IndexMappingUtils.java
@@ -0,0 +1,73 @@
+package org.simantics.graph.store;\r
+\r
+import gnu.trove.list.array.TIntArrayList;\r
+import gnu.trove.map.hash.TIntIntHashMap;\r
+import gnu.trove.map.hash.TIntObjectHashMap;\r
+import gnu.trove.map.hash.TObjectIntHashMap;\r
+import gnu.trove.procedure.TIntObjectProcedure;\r
+import gnu.trove.procedure.TIntProcedure;\r
+import gnu.trove.procedure.TObjectIntProcedure;\r
+import gnu.trove.set.hash.TIntHashSet;\r
+\r
+public class IndexMappingUtils {\r
+       \r
+       public static <T> TIntObjectHashMap<T> map(final TIntIntHashMap map, TIntObjectHashMap<T> target,\r
+                       final TIntHashSet collisions) {\r
+               final TIntObjectHashMap<T> newTarget = new TIntObjectHashMap<T>();\r
+               target.forEachEntry(new TIntObjectProcedure<T>() {\r
+                       @Override\r
+                       public boolean execute(int a, T b) {\r
+                               if(map.contains(a))\r
+                                       a = map.get(a);\r
+                               if(newTarget.put(a, b) != null)\r
+                                       collisions.add(a);\r
+                               return true;\r
+                       }\r
+               });\r
+               return newTarget;\r
+       }\r
+       \r
+       public static void map(TIntIntHashMap map, TIntArrayList target) {\r
+               int size = target.size();\r
+               for(int i=0;i<size;++i) {\r
+                       int id = target.getQuick(i);\r
+                       if(map.contains(id))\r
+                               target.setQuick(i, map.get(id));\r
+               }\r
+       }       \r
+       \r
+       public static <T> void map(final TIntIntHashMap map, \r
+                       final TObjectIntHashMap<T> target) {\r
+               target.forEachEntry(new TObjectIntProcedure<T>() {\r
+                       @Override\r
+                       public boolean execute(T a, int b) {\r
+                               if(map.containsKey(b))\r
+                                       target.put(a, map.get(b));\r
+                               return true;\r
+                       }\r
+               });\r
+       }\r
+       \r
+       public static TIntHashSet map(final TIntIntHashMap map, TIntHashSet target) {\r
+               final TIntHashSet newTarget = new TIntHashSet();\r
+               target.forEach(new TIntProcedure() {\r
+                       @Override\r
+                       public boolean execute(int a) {\r
+                               if(map.contains(a))\r
+                                       a = map.get(a);\r
+                               newTarget.add(a);\r
+                               return true;\r
+                       }\r
+               });\r
+               return newTarget;\r
+       }\r
+\r
+       public static void map(TIntIntHashMap map, int[] target) {\r
+               for(int i=0;i<target.length;++i) {\r
+                       int temp = target[i];\r
+                       if(map.containsKey(temp))\r
+                               target[i] = map.get(temp);\r
+               }\r
+       }       \r
+\r
+}\r