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

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.db.layer0.adapter.impl;
  13
  14 import java.lang.reflect.Array;
  15 import java.util.List;
  16
  17 import org.simantics.databoard.Bindings;
  18 import org.simantics.databoard.binding.Binding;
  19 import org.simantics.databoard.binding.RecordBinding;
  20 import org.simantics.databoard.binding.error.BindingException;
  21 import org.simantics.databoard.parser.repository.DataTypeSyntaxError;
  22 import org.simantics.databoard.parser.repository.DataValueRepository;
  23 import org.simantics.databoard.type.ArrayType;
  24 import org.simantics.databoard.type.Datatype;
  25 import org.simantics.databoard.type.RecordType;
  26 import org.simantics.db.ReadGraph;
  27 import org.simantics.db.Resource;
  28 import org.simantics.db.VirtualGraph;
  29 import org.simantics.db.WriteGraph;
  30 import org.simantics.db.common.request.WriteRequest;
  31 import org.simantics.db.common.utils.NameUtils;
  32 import org.simantics.db.common.utils.OrderedSetUtils;
  33 import org.simantics.db.exception.DatabaseException;
  34 import org.simantics.db.exception.ValidationException;
  35 import org.simantics.db.layer0.adapter.StringIndexModifier;
  36 import org.simantics.db.layer0.adapter.TObjectIntPair;
  37 import org.simantics.db.layer0.util.PrimitiveValueParser;
  38 import org.simantics.db.layer0.util.PrimitiveValueParser.BooleanValidator;
  39 import org.simantics.db.layer0.util.PrimitiveValueParser.ByteValidator;
  40 import org.simantics.db.layer0.util.PrimitiveValueParser.DoubleValidator;
  41 import org.simantics.db.layer0.util.PrimitiveValueParser.FloatValidator;
  42 import org.simantics.db.layer0.util.PrimitiveValueParser.IValidator;
  43 import org.simantics.db.layer0.util.PrimitiveValueParser.IntegerValidator;
  44 import org.simantics.db.layer0.util.PrimitiveValueParser.LongValidator;
  45 import org.simantics.db.service.VirtualGraphSupport;
  46 import org.simantics.layer0.Layer0;
  47
  48 /**
  49  * @author Tuukka Lehtonen
  50  */
  51 public final class StringIndexModifierImpl implements StringIndexModifier {
  52
  53     final Resource resource;
  54     IValidator     validator;
  55
  56     public StringIndexModifierImpl(ReadGraph g, Resource resource) throws DatabaseException {
  57
  58         this.resource = resource;
  59         this.validator = null;
  60
  61         // Resolve validator if any
  62         Layer0 l0 = Layer0.getInstance(g);
  63         if (g.isInstanceOf(resource, l0.DoubleArray)) {
  64             validator = new DoubleValidator();
  65         } else if (g.isInstanceOf(resource, l0.ByteArray)) {
  66             validator = new ByteValidator();
  67         } else if (g.isInstanceOf(resource, l0.BooleanArray)) {
  68             validator = new BooleanValidator();
  69         } else if (g.isInstanceOf(resource, l0.IntegerArray)) {
  70             validator = new IntegerValidator();
  71         } else if (g.isInstanceOf(resource, l0.LongArray)) {
  72             validator = new LongValidator();
  73         } else if (g.isInstanceOf(resource, l0.FloatArray)) {
  74             validator = new FloatValidator();
  75         }
  76
  77     }
  78
  79     @Override
  80     public String getValue() {
  81         throw new UnsupportedOperationException();
  82     }
  83
  84     @Override
  85     public String isValid(TObjectIntPair<String> value) {
  86         return validator == null ? null : validator.isValid(value.first);
  87     }
  88
  89     @Override
  90     public void modify(WriteGraph graph, final TObjectIntPair<String> pair) throws DatabaseException {
  91         VirtualGraphSupport vgs = graph.getService(VirtualGraphSupport.class);
  92         VirtualGraph vg = vgs.getGraph(graph, resource);
  93         if (vg != null) {
  94             graph.syncRequest(new WriteRequest(vg) {
  95                 @Override
  96                 public void perform(WriteGraph graph) throws DatabaseException {
  97                     modify0(graph, pair);
  98                 }
  99             });
 100         } else {
 101             modify0(graph, pair);
 102         }
 103     }
 104
 105     public void modify0(WriteGraph graph, TObjectIntPair<String> pair) throws DatabaseException {
 106         Layer0 l0 = Layer0.getInstance(graph);
 107         String value = pair.first;
 108         int index = pair.second;
 109
 110         try {
 111             if (graph.isInstanceOf(resource, l0.StringArray)) {
 112                 String[] old = graph.getValue(resource);
 113                 old[index] = value;
 114                 graph.claimValue(resource, old);
 115             } else if (graph.isInstanceOf(resource, l0.DoubleArray)) {
 116                 double[] old = graph.getValue(resource);
 117                 old[index] = PrimitiveValueParser.parseDouble(value);
 118                 graph.claimValue(resource, old);
 119             } else if (graph.isInstanceOf(resource, l0.ByteArray)) {
 120                 byte[] old = graph.getValue(resource);
 121                 old[index] = PrimitiveValueParser.parseByte(value);
 122                 graph.claimValue(resource, old);
 123             } else if (graph.isInstanceOf(resource, l0.BooleanArray)) {
 124                 boolean[] old = graph.getValue(resource);
 125                 old[index] = PrimitiveValueParser.parseBoolean(value);
 126                 graph.claimValue(resource, old);
 127             } else if (graph.isInstanceOf(resource, l0.IntegerArray)) {
 128                 int[] old = graph.getValue(resource);
 129                 old[index] = PrimitiveValueParser.parseInt(value);
 130                 graph.claimValue(resource, old);
 131             } else if (graph.isInstanceOf(resource, l0.LongArray)) {
 132                 long[] old = graph.getValue(resource);
 133                 old[index] = PrimitiveValueParser.parseLong(value);
 134                 graph.claimValue(resource, old);
 135             } else if (graph.isInstanceOf(resource, l0.FloatArray)) {
 136                 float[] old = graph.getValue(resource);
 137                 old[index] = PrimitiveValueParser.parseFloat(value);
 138                 graph.claimValue(resource, old);
 139             } else if(graph.isInstanceOf(resource, l0.OrderedSet)) {
 140                 List<Resource> list = OrderedSetUtils.toList(graph, resource);
 141                                 Resource el = graph.newResource();
 142                                 graph.claimValue(el, value);
 143                                 graph.claim(el, l0.InstanceOf, null, l0.String); // FIXME FIXME FIXME
 144                 OrderedSetUtils.replace(graph, resource, list.get(index), el);
 145             } else {
 146                 Datatype dt = graph.getPossibleRelatedValue(resource, l0.HasDataType, Bindings.getBindingUnchecked(Datatype.class));
 147                 if (dt instanceof RecordType) {
 148                     RecordType rt = (RecordType) dt;
 149                     RecordBinding rb = Bindings.getBinding(rt);
 150                     Binding indexBinding = rb.getComponentBinding(index);
 151                     Object parsedValue = indexBinding.parseValue(value, new DataValueRepository());
 152                     Object v = graph.getValue(resource, rb);
 153                     rb.setComponent(v, index, parsedValue);
 154                     graph.claimValue(resource, v, rb);
 155                 } else if (dt instanceof ArrayType) {
 156                     ArrayType at = (ArrayType) dt;
 157                     Binding binding = Bindings.getBinding(at);
 158                     Binding indexBinding = Bindings.getBinding(at.componentType());
 159                     Object parsedValue = indexBinding.parseValue(value, new DataValueRepository());
 160                     Object v = graph.getValue(resource, binding);
 161                     if (v.getClass().isArray()) {
 162                         Array.set(v, index, parsedValue);
 163                         graph.claimValue(resource, v, binding);
 164                     }
 165                 } else {
 166                     throw new ValidationException("Could not modify unrecognized resource '" + NameUtils.getSafeName(graph, resource) + "' with value " + value);
 167                 }
 168             }
 169         } catch(IllegalArgumentException e) {
 170             // value could not be modified
 171         } catch (DataTypeSyntaxError e) {
 172             throw new ValidationException("Could not modify unrecognized resource '" + NameUtils.getSafeName(graph, resource) + "' with value " + value, e);
 173         } catch (BindingException e) {
 174             throw new ValidationException("Could not modify unrecognized resource '" + NameUtils.getSafeName(graph, resource) + "' with value " + value, e);
 175         }
 176     }
 177
 178 }