bundles/org.simantics.spreadsheet.graph/src/org/simantics/spreadsheet/graph/adapter/StringArrayCells.java

   1 package org.simantics.spreadsheet.graph.adapter;\r
   2 \r
   3 import java.util.ArrayList;\r
   4 import java.util.Collection;\r
   5 import java.util.Collections;\r
   6 \r
   7 import org.simantics.databoard.Bindings;\r
   8 import org.simantics.databoard.binding.Binding;\r
   9 import org.simantics.db.ReadGraph;\r
  10 import org.simantics.db.Resource;\r
  11 import org.simantics.db.exception.DatabaseException;\r
  12 import org.simantics.db.layer0.variable.ConstantChildVariable;\r
  13 import org.simantics.db.layer0.variable.Variable;\r
  14 import org.simantics.db.layer0.variable.VariableFactory;\r
  15 import org.simantics.db.layer0.variable.Variables;\r
  16 import org.simantics.spreadsheet.resource.SpreadsheetResource;\r
  17 import org.simantics.spreadsheet.util.SpreadsheetUtils;\r
  18 \r
  19 public class StringArrayCells implements VariableFactory {\r
  20 \r
  21         private Resource configuration;\r
  22         \r
  23         public StringArrayCells(Resource configuration) {\r
  24                 this.configuration = configuration;\r
  25         }\r
  26 \r
  27         final String[] propertyNames = { Variables.LABEL, "immutable" }; \r
  28         final Binding[] bindings = { Bindings.STRING, Bindings.BOOLEAN };\r
  29         \r
  30         private Collection<Variable> toVariables(ReadGraph graph, Variable variable, String[] data, int width) throws DatabaseException {\r
  31 \r
  32                 SpreadsheetResource sr = SpreadsheetResource.getInstance(graph);\r
  33                 String location = graph.getPossibleRelatedValue(configuration, sr.HasLocation, Bindings.STRING);\r
  34                 if(location == null) return Collections.emptyList();\r
  35                 \r
  36                 int rows = data.length / width;\r
  37                 \r
  38                 ArrayList<Variable> result = new ArrayList<Variable>();\r
  39                 for(int offset=0,i=0;i<rows;i++) {\r
  40                         for(int j=0;j<width;j++) {\r
  41                                 String value = data[offset++];\r
  42                                 String valueLocation = SpreadsheetUtils.offset(location, i, j);\r
  43                                 result.add(new ConstantChildVariable(variable, valueLocation, propertyNames, bindings, new Object[] { value, true }));\r
  44                         }\r
  45                 }\r
  46                 return result;\r
  47 \r
  48         }\r
  49         \r
  50         private Collection<Variable> error(ReadGraph graph, Variable variable, String message) throws DatabaseException {\r
  51 \r
  52                 SpreadsheetResource sr = SpreadsheetResource.getInstance(graph);\r
  53                 String location = graph.getPossibleRelatedValue(configuration, sr.HasLocation, Bindings.STRING);\r
  54                 if(location == null) return Collections.emptyList();\r
  55                 \r
  56                 return Collections.<Variable>singletonList(new ConstantChildVariable(variable, location, propertyNames, bindings, new Object[] { message })); \r
  57 \r
  58         }\r
  59         \r
  60         @Override\r
  61         public Collection<Variable> evaluate(ReadGraph graph, Variable variable) throws DatabaseException {\r
  62                 \r
  63                 SpreadsheetResource sr = SpreadsheetResource.getInstance(graph);\r
  64                 String[] data = graph.getPossibleRelatedValue(configuration, sr.StringArrayCell_HasStringArray, Bindings.STRING_ARRAY);\r
  65                 if(data == null) return error(graph, variable, "No string array data.");\r
  66                 Integer width = graph.getPossibleRelatedValue(configuration, sr.StringArrayCell_HasWidth, Bindings.INTEGER);\r
  67                 if(width == null) return error(graph, variable, "Invalid width for string array.");\r
  68                         \r
  69                 return toVariables(graph, variable, data, width);\r
  70                 \r
  71         }\r
  72         \r
  73 }\r