org.simantics.xml.sax.base/src/org/simantics/xml/sax/base/ValueElementWriter.java

   1 package org.simantics.xml.sax.base;\r
   2 \r
   3 import java.util.Collection;\r
   4 import java.util.Set;\r
   5 \r
   6 import javax.xml.stream.XMLStreamException;\r
   7 import javax.xml.stream.XMLStreamWriter;\r
   8 \r
   9 import org.simantics.databoard.binding.Binding;\r
  10 import org.simantics.db.ReadGraph;\r
  11 import org.simantics.db.Resource;\r
  12 import org.simantics.db.Statement;\r
  13 import org.simantics.db.exception.DatabaseException;\r
  14 \r
  15 public abstract class ValueElementWriter implements XMLElementWriter{\r
  16         \r
  17         String name;\r
  18         Binding binding;\r
  19         String typeURI;\r
  20         \r
  21         public ValueElementWriter(String name, String typeURI,Binding binding) {\r
  22                 this.name = name;\r
  23                 this.typeURI = typeURI;\r
  24                 this.binding = binding;\r
  25         }\r
  26         \r
  27         @Override\r
  28         public String getElementId() {\r
  29                 return name;\r
  30         }\r
  31         \r
  32         @Override\r
  33         public Resource getType(ReadGraph graph) throws DatabaseException {\r
  34                 return graph.getResource(typeURI);\r
  35         }\r
  36         \r
  37         @Override\r
  38         public void start(ReadGraph graph, WriterElement instance, XMLStreamWriter writer)\r
  39                         throws XMLStreamException, DatabaseException {\r
  40                 writer.writeStartElement(getElementId());\r
  41         }\r
  42         \r
  43         @Override\r
  44         public void children(ReadGraph graph, WriterElement instance, Set<Resource> sorted)\r
  45                         throws XMLStreamException, DatabaseException {\r
  46                 \r
  47         }\r
  48         \r
  49         @Override\r
  50         public void end(ReadGraph graph, WriterElement instance, XMLStreamWriter writer)\r
  51                         throws XMLStreamException, DatabaseException {\r
  52                 writer.writeEndElement();\r
  53         }\r
  54         \r
  55         @Override\r
  56         public void attributes(ReadGraph graph, WriterElement instance, Collection<Statement> attributes,\r
  57                         XMLStreamWriter writer) throws XMLStreamException, DatabaseException {\r
  58                 \r
  59         }\r
  60         \r
  61         public abstract String decode(Object value);\r
  62         \r
  63         @Override\r
  64         public void characters(ReadGraph graph, WriterElement instance, XMLStreamWriter writer)\r
  65                         throws XMLStreamException, DatabaseException {\r
  66                 Object value = graph.getValue(instance.getResource(), binding);\r
  67                 writer.writeCharacters(decode(value));\r
  68         }\r
  69 \r
  70 }\r