bundles/org.simantics.document.linking.ui/src/org/simantics/document/linking/report/evaluator/Lines.java

   1 package org.simantics.document.linking.report.evaluator;
   2
   3 import java.util.ArrayList;
   4 import java.util.List;
   5 import java.util.Map;
   6
   7 import org.eclipse.jface.resource.ImageDescriptor;
   8 import org.simantics.db.ReadGraph;
   9 import org.simantics.db.exception.DatabaseException;
  10 import org.simantics.db.layer0.variable.Variable;
  11 import org.simantics.document.linking.Activator;
  12 import org.simantics.document.linking.ontology.DocumentLink;
  13 import org.simantics.document.linking.report.DocumentLine;
  14 import org.simantics.objmap.graph.annotations.OrderedSetType;
  15
  16 /**
  17  * Combines child node contents to separate lines.
  18  *
  19  * If all children return null, the return value is null.
  20  *
  21  * @author Marko Luukkainen <marko.luukkainen@vtt.fi>
  22  *
  23  */
  24 @OrderedSetType(DocumentLink.URIs.EvaluatorTree_Lines)
  25 public class Lines extends EvaluatorNode {
  26
  27
  28         @Override
  29         public String getValue(ReadGraph graph, Variable variable, Map<Object, Object> context) throws DatabaseException {
  30                 String s = "";
  31                 for (int i = 0 ; i < children.size(); i++) {
  32                         String s2 = children.get(i).getValue(graph, variable, context);
  33                         if (s2 != null) {
  34                                 s+= s2;
  35                                 if (i < children.size()-1)
  36                                         s+=System.getProperty("line.separator");
  37                         }
  38                 }
  39                 if (s.length() == 0)
  40                         return null;
  41                 return s;
  42         }
  43
  44
  45         @Override
  46         public String toString() {
  47                 return "Lines" ;
  48         }
  49
  50
  51
  52         @Override
  53         public List<DocumentLine> getLines(ReadGraph graph,     Variable variable, Map<Object, Object> context) throws DatabaseException {
  54                 List<DocumentLine> result = new ArrayList<DocumentLine>();
  55                 for (int i = 0 ; i < children.size(); i++) {
  56                         result.addAll(children.get(i).getLines(graph, variable, context));
  57                 }
  58                 return result;
  59         }
  60
  61         @Override
  62         public EvaluatorItem copy() {
  63                 Lines lines = new Lines();
  64                 copyChildren(lines);
  65                 return lines;
  66         }
  67
  68         @Override
  69         public ImageDescriptor getImage() {
  70                 return Activator.imageDescriptorFromPlugin("com.famfamfam.silk", "icons/text_linespacing.png");
  71         }
  72
  73 }