bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/widgets/VariableStringPropertyFactory.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2012 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.browsing.ui.swt.widgets;\r
  13 \r
  14 import java.util.Arrays;\r
  15 import java.util.Collection;\r
  16 import java.util.Collections;\r
  17 \r
  18 import org.simantics.browsing.ui.swt.widgets.impl.ReadFactoryImpl;\r
  19 import org.simantics.db.ReadGraph;\r
  20 import org.simantics.db.exception.DatabaseException;\r
  21 import org.simantics.db.layer0.variable.Variable;\r
  22 import org.simantics.db.layer0.variable.Variables;\r
  23 import org.simantics.utils.datastructures.Quad;\r
  24 \r
  25 \r
  26 public class VariableStringPropertyFactory extends ReadFactoryImpl<Variable, String> {\r
  27 \r
  28         final private String format;\r
  29         final private Collection<String> properties;\r
  30         \r
  31         public VariableStringPropertyFactory(String property) {\r
  32                 this.properties = Collections.singleton(property);\r
  33                 this.format = "%1";\r
  34         }\r
  35 \r
  36         public VariableStringPropertyFactory(String format, String ... properties) {\r
  37                 this.properties = Arrays.asList(properties);\r
  38                 this.format = format;\r
  39         }\r
  40 \r
  41         @Override\r
  42         public Object getIdentity(Object inputContents) {\r
  43                 return new Quad<Variable, String, Collection<String>, Object>((Variable)inputContents, format, properties, getClass());\r
  44         }\r
  45 \r
  46         public String toString(ReadGraph graph, Variable variable, String property, Object value) throws DatabaseException {\r
  47 //              System.out.println("toString " + value);\r
  48                 if(value == null) {\r
  49                         return "VariableStringPropertyFactory: no value for " + property + " in variable " + variable;//variable.getURI(graph);\r
  50                 } else if(value instanceof Variable) {\r
  51                         String result = ((Variable)value).getPossiblePropertyValue(graph, Variables.NAME);\r
  52 //                      System.out.println("toString[Variable] = " + result);\r
  53                         return result;\r
  54                 } else {\r
  55                         return value.toString();\r
  56                 }\r
  57         }\r
  58         \r
  59         public String toPossibleString(ReadGraph graph, Variable variable, String property, Object value) throws DatabaseException {\r
  60                 if(value == null) return "";\r
  61                 return toString(graph, variable, property, value);\r
  62         }\r
  63 \r
  64         @Override\r
  65         public String perform(ReadGraph graph, Variable variable) throws DatabaseException {\r
  66 \r
  67                 if(variable == null) return "<Error: variable was null>";\r
  68                 \r
  69                 int index = 1;\r
  70                 String result = format;\r
  71                 for(String property : properties) {\r
  72 //                      System.out.println("variablestringpropertyfactory " + property);\r
  73                         Variable target = variable.browsePossible(graph, property);\r
  74                         Object targetValue = target != null ? target.getValue(graph) : null;\r
  75                         String possibleTargetString = toPossibleString(graph, variable, property, targetValue);\r
  76                         result = result.replace("?%" + (index), possibleTargetString);\r
  77                         String targetString = toString(graph, variable, property, targetValue);\r
  78                         result = result.replace("%" + (index), targetString);\r
  79                         index++;\r
  80                 }\r
  81                 return result;\r
  82                 \r
  83         }\r
  84         \r
  85 }\r