bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/adapter/impl/StringIndexModifierImpl.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
   3  * in 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.db.layer0.adapter.impl;\r
  13 \r
  14 import java.lang.reflect.Array;\r
  15 import java.util.List;\r
  16 \r
  17 import org.simantics.databoard.Bindings;\r
  18 import org.simantics.databoard.binding.Binding;\r
  19 import org.simantics.databoard.binding.error.BindingException;\r
  20 import org.simantics.databoard.parser.repository.DataTypeSyntaxError;\r
  21 import org.simantics.databoard.parser.repository.DataValueRepository;\r
  22 import org.simantics.databoard.type.ArrayType;\r
  23 import org.simantics.databoard.type.Datatype;\r
  24 import org.simantics.db.ReadGraph;\r
  25 import org.simantics.db.Resource;\r
  26 import org.simantics.db.VirtualGraph;\r
  27 import org.simantics.db.WriteGraph;\r
  28 import org.simantics.db.common.request.WriteRequest;\r
  29 import org.simantics.db.common.utils.NameUtils;\r
  30 import org.simantics.db.common.utils.OrderedSetUtils;\r
  31 import org.simantics.db.exception.DatabaseException;\r
  32 import org.simantics.db.exception.ValidationException;\r
  33 import org.simantics.db.layer0.adapter.StringIndexModifier;\r
  34 import org.simantics.db.layer0.adapter.TObjectIntPair;\r
  35 import org.simantics.db.layer0.util.PrimitiveValueParser;\r
  36 import org.simantics.db.layer0.util.PrimitiveValueParser.BooleanValidator;\r
  37 import org.simantics.db.layer0.util.PrimitiveValueParser.ByteValidator;\r
  38 import org.simantics.db.layer0.util.PrimitiveValueParser.DoubleValidator;\r
  39 import org.simantics.db.layer0.util.PrimitiveValueParser.FloatValidator;\r
  40 import org.simantics.db.layer0.util.PrimitiveValueParser.IValidator;\r
  41 import org.simantics.db.layer0.util.PrimitiveValueParser.IntegerValidator;\r
  42 import org.simantics.db.layer0.util.PrimitiveValueParser.LongValidator;\r
  43 import org.simantics.db.service.VirtualGraphSupport;\r
  44 import org.simantics.layer0.Layer0;\r
  45 \r
  46 /**\r
  47  * @author Tuukka Lehtonen\r
  48  */\r
  49 public final class StringIndexModifierImpl implements StringIndexModifier {\r
  50 \r
  51     final Resource resource;\r
  52     IValidator     validator;\r
  53 \r
  54     public StringIndexModifierImpl(ReadGraph g, Resource resource) throws DatabaseException {\r
  55         \r
  56         this.resource = resource;\r
  57         this.validator = null;\r
  58 \r
  59         // Resolve validator if any\r
  60         Layer0 l0 = Layer0.getInstance(g);\r
  61         if (g.isInstanceOf(resource, l0.DoubleArray)) {\r
  62             validator = new DoubleValidator();\r
  63         } else if (g.isInstanceOf(resource, l0.ByteArray)) {\r
  64             validator = new ByteValidator();\r
  65         } else if (g.isInstanceOf(resource, l0.BooleanArray)) {\r
  66             validator = new BooleanValidator();\r
  67         } else if (g.isInstanceOf(resource, l0.IntegerArray)) {\r
  68             validator = new IntegerValidator();\r
  69         } else if (g.isInstanceOf(resource, l0.LongArray)) {\r
  70             validator = new LongValidator();\r
  71         } else if (g.isInstanceOf(resource, l0.FloatArray)) {\r
  72             validator = new FloatValidator();\r
  73         }\r
  74         \r
  75     }\r
  76 \r
  77     @Override\r
  78     public String getValue() {\r
  79         throw new UnsupportedOperationException();\r
  80     }\r
  81     \r
  82     @Override\r
  83     public String isValid(TObjectIntPair<String> value) {\r
  84         return validator == null ? null : validator.isValid(value.first);\r
  85     }\r
  86 \r
  87     @Override\r
  88     public void modify(WriteGraph graph, final TObjectIntPair<String> pair) throws DatabaseException {\r
  89         VirtualGraphSupport vgs = graph.getService(VirtualGraphSupport.class);\r
  90         VirtualGraph vg = vgs.getGraph(graph, resource);\r
  91         if (vg != null) {\r
  92             graph.syncRequest(new WriteRequest(vg) {\r
  93                 @Override\r
  94                 public void perform(WriteGraph graph) throws DatabaseException {\r
  95                     modify0(graph, pair);\r
  96                 }\r
  97             });\r
  98         } else {\r
  99             modify0(graph, pair);\r
 100         }\r
 101     }\r
 102 \r
 103     public void modify0(WriteGraph graph, TObjectIntPair<String> pair) throws DatabaseException {\r
 104         Layer0 l0 = Layer0.getInstance(graph);\r
 105         String value = pair.first;\r
 106         int index = pair.second;\r
 107 \r
 108         try {\r
 109             if (graph.isInstanceOf(resource, l0.StringArray)) {\r
 110                 String[] old = graph.getValue(resource);\r
 111                 old[index] = value;\r
 112                 graph.claimValue(resource, old);\r
 113             } else if (graph.isInstanceOf(resource, l0.DoubleArray)) {\r
 114                 double[] old = graph.getValue(resource);\r
 115                 old[index] = PrimitiveValueParser.parseDouble(value);\r
 116                 graph.claimValue(resource, old);\r
 117             } else if (graph.isInstanceOf(resource, l0.ByteArray)) {\r
 118                 byte[] old = graph.getValue(resource);\r
 119                 old[index] = PrimitiveValueParser.parseByte(value);\r
 120                 graph.claimValue(resource, old);\r
 121             } else if (graph.isInstanceOf(resource, l0.BooleanArray)) {\r
 122                 boolean[] old = graph.getValue(resource);\r
 123                 old[index] = PrimitiveValueParser.parseBoolean(value);\r
 124                 graph.claimValue(resource, old);\r
 125             } else if (graph.isInstanceOf(resource, l0.IntegerArray)) {\r
 126                 int[] old = graph.getValue(resource);\r
 127                 old[index] = PrimitiveValueParser.parseInt(value);\r
 128                 graph.claimValue(resource, old);\r
 129             } else if (graph.isInstanceOf(resource, l0.LongArray)) {\r
 130                 long[] old = graph.getValue(resource);\r
 131                 old[index] = PrimitiveValueParser.parseLong(value);\r
 132                 graph.claimValue(resource, old);\r
 133             } else if (graph.isInstanceOf(resource, l0.FloatArray)) {\r
 134                 float[] old = graph.getValue(resource);\r
 135                 old[index] = PrimitiveValueParser.parseFloat(value);\r
 136                 graph.claimValue(resource, old);\r
 137             } else if(graph.isInstanceOf(resource, l0.OrderedSet)) {\r
 138                 List<Resource> list = OrderedSetUtils.toList(graph, resource);\r
 139                                 Resource el = graph.newResource();\r
 140                                 graph.claimValue(el, value);\r
 141                                 graph.claim(el, l0.InstanceOf, null, l0.String); // FIXME FIXME FIXME\r
 142                 OrderedSetUtils.replace(graph, resource, list.get(index), el);\r
 143             } else {\r
 144                 Datatype dt = graph.getPossibleRelatedValue(resource, l0.HasDataType, Bindings.getBindingUnchecked(Datatype.class));\r
 145                 if (dt instanceof ArrayType) {\r
 146                     ArrayType at = (ArrayType) dt;\r
 147                     Binding binding = Bindings.getBinding(at);\r
 148                     Binding indexBinding = Bindings.getBinding(at.componentType());\r
 149                     Object parsedValue = indexBinding.parseValue(value, new DataValueRepository());\r
 150                     Object v = graph.getValue(resource, binding);\r
 151                     if (v.getClass().isArray()) {\r
 152                         Array.set(v, index, parsedValue);\r
 153                         graph.claimValue(resource, v, binding);\r
 154                     }\r
 155                 } else {\r
 156                     throw new ValidationException("Could not modify unrecognized resource '" + NameUtils.getSafeName(graph, resource) + "' with value " + value);\r
 157                 }\r
 158             }\r
 159         } catch(IllegalArgumentException e) {\r
 160             // value could not be modified\r
 161         } catch (DataTypeSyntaxError e) {\r
 162             throw new ValidationException("Could not modify unrecognized resource '" + NameUtils.getSafeName(graph, resource) + "' with value " + value, e);\r
 163         } catch (BindingException e) {\r
 164             throw new ValidationException("Could not modify unrecognized resource '" + NameUtils.getSafeName(graph, resource) + "' with value " + value, e);\r
 165         }\r
 166     }\r
 167 \r
 168 }\r