bundles/org.simantics.databoard/src/org/simantics/databoard/binding/factory/TroveBindingsProvider.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2011 Association for Decentralized Information Management in\r
   3  * 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.databoard.binding.factory;\r
  13 \r
  14 import gnu.trove.map.hash.THashMap;\r
  15 import gnu.trove.set.hash.THashSet;\r
  16 \r
  17 import java.util.List;\r
  18 import java.util.Map;\r
  19 import java.util.Set;\r
  20 \r
  21 import org.simantics.databoard.Datatypes;\r
  22 import org.simantics.databoard.binding.Binding;\r
  23 import org.simantics.databoard.binding.error.BindingConstructionException;\r
  24 import org.simantics.databoard.binding.error.BindingException;\r
  25 import org.simantics.databoard.binding.impl.HashMapBinding;\r
  26 import org.simantics.databoard.binding.impl.HashSetBinding;\r
  27 import org.simantics.databoard.binding.reflection.BindingProvider;\r
  28 import org.simantics.databoard.binding.reflection.BindingRequest;\r
  29 import org.simantics.databoard.binding.reflection.ClassBindingFactory;\r
  30 import org.simantics.databoard.type.MapType;\r
  31 \r
  32 public class TroveBindingsProvider implements BindingProvider {\r
  33 \r
  34         @Override\r
  35         public Binding provideBinding(ClassBindingFactory factory, BindingRequest request)\r
  36                         throws BindingConstructionException {\r
  37                 \r
  38         if ( request.getClazz().equals(THashSet.class) ) {\r
  39             MapType type = new MapType();\r
  40             type.valueType = Datatypes.VOID;            \r
  41                 return new THashSetBinding(type, null);\r
  42         }\r
  43                 \r
  44         if ( request.getClazz().equals(THashMap.class) ) {\r
  45             MapType type = new MapType();\r
  46                 return new THashMapBinding(type, null, null);\r
  47         }\r
  48                 \r
  49                 return null;\r
  50         }\r
  51 \r
  52         static class THashMapBinding extends HashMapBinding {\r
  53                 \r
  54                 public THashMapBinding(Binding keyBinding, Binding valueBinding) {\r
  55                         super(keyBinding, valueBinding);\r
  56                 }\r
  57 \r
  58                 public THashMapBinding(MapType mapType, Binding keyBinding,\r
  59                                 Binding valueBinding) {\r
  60                         super(mapType, keyBinding, valueBinding);\r
  61                 }\r
  62 \r
  63                 @Override\r
  64                 public Object create() {                \r
  65                         return new THashMap<Object, Object>();\r
  66                 }\r
  67                 \r
  68                 @Override\r
  69                 public Object create(Object[] keys, Object[] values) {\r
  70                         if (keys.length!=values.length)\r
  71                                 throw new IllegalArgumentException("Equal length arrays expected");\r
  72                         \r
  73                         int len = keys.length;\r
  74                         THashMap<Object, Object> result = new THashMap<Object, Object>(len);\r
  75                         \r
  76                         for (int i=0; i<len; i++) {\r
  77                                 Object key = keys[i];\r
  78                                 key = getComparableKey(result, key);                    \r
  79                                 Object value = values[i];\r
  80                                 result.put(key, value);\r
  81                         }\r
  82                         \r
  83                         return result;\r
  84                 }\r
  85                 \r
  86                 @Override\r
  87                 public Object create(List<Object> keys, List<Object> values) {\r
  88                         if (keys.size()!=values.size())\r
  89                                 throw new IllegalArgumentException("Equal length arrays expected");\r
  90                         \r
  91                         int len = keys.size();\r
  92                         THashMap<Object, Object> result = new THashMap<Object, Object>(len);\r
  93                         \r
  94                         for (int i=0; i<len; i++) {\r
  95                                 Object key = keys.get(i);\r
  96                                 key = getComparableKey(result, key);\r
  97                                 Object value = values.get(i);\r
  98                                 result.put(key, value);\r
  99                         }\r
 100                         \r
 101                         return result;\r
 102                 }\r
 103                 \r
 104                 @Override\r
 105                 public Object create(Map<?, ?> initialMap) throws BindingException {\r
 106                     if (initialMap instanceof THashMap)\r
 107                         return initialMap;\r
 108                     \r
 109                         // Replace with TreeMap. Create comparator from binding.\r
 110                         THashMap<Object, Object> result = new THashMap<Object, Object>();\r
 111                         putAll(result, initialMap);\r
 112                         return result;\r
 113                 }\r
 114                 \r
 115                 @Override\r
 116                 public boolean isInstance(Object obj) {\r
 117                         return obj instanceof THashMap;\r
 118                 }\r
 119                 \r
 120         }\r
 121         \r
 122         static class THashSetBinding extends HashSetBinding {\r
 123                 \r
 124                 public THashSetBinding(Binding elementBinding) {\r
 125                         super(elementBinding);\r
 126                         // TODO Auto-generated constructor stub\r
 127                 }\r
 128 \r
 129                 public THashSetBinding(MapType mapType, Binding elementBinding) {\r
 130                         super(mapType, elementBinding);\r
 131                         // TODO Auto-generated constructor stub\r
 132                 }\r
 133 \r
 134                 @Override\r
 135                 public Object create() throws BindingException {\r
 136                         return new THashSet<Object>();\r
 137                 }\r
 138 \r
 139                 public Object create(Set<?> initialSet) throws BindingException {\r
 140                     if (initialSet instanceof THashSet)\r
 141                         return initialSet;\r
 142                     \r
 143                         return new THashSet<Object>(initialSet);\r
 144                 }\r
 145 \r
 146                 @SuppressWarnings({ "unchecked", "rawtypes" })\r
 147         @Override\r
 148                 public Object create(Map initialMap) throws BindingException {\r
 149                         return new THashSet<Object>(initialMap.keySet());\r
 150                 }\r
 151 \r
 152                 @Override\r
 153                 public Object create(Object[] keys, Object[] values)\r
 154                 throws BindingException {               \r
 155                         THashSet<Object> result = new THashSet<Object>(keys.length);\r
 156                         for (int i=0; i<keys.length; i++)\r
 157                                 result.add(keys[i]);\r
 158                         return result;\r
 159                 }\r
 160                 \r
 161                 @Override\r
 162                 public Object create(List<Object> keys, List<Object> values) {\r
 163                         THashSet<Object> result = new THashSet<Object>(keys.size());\r
 164                         for (int i=0; i<keys.size(); i++)\r
 165                                 result.add(keys.get(i));\r
 166                         return result;\r
 167                 }\r
 168                 \r
 169                 @Override\r
 170                 public boolean isInstance(Object obj) {\r
 171                         return obj instanceof THashSet;\r
 172                 }               \r
 173                 \r
 174         }\r
 175         \r
 176 }\r