|
1 package org.apache.slide.projector.descriptor;
2
3 import java.io.IOException  ;
4 import java.util.Iterator ;
5 import java.util.List ;
6 import java.util.logging.Level ;
7 import java.util.logging.Logger ;
8
9 import org.apache.slide.projector.value.ElementValue;
10 import org.apache.slide.projector.value.Value;
11 import org.jdom.Element;
12 import org.jdom.output.Format;
13 import org.jdom.output.XMLOutputter;
14
15 import de.zeigermann.xml.XMLStringWriter;
16 import de.zeigermann.xml.XMLWriter;
17
18 public class XMLValueFactory implements ValueFactory {
19 private final static XMLOutputter xmlOutputter = new XMLOutputter(Format.getPrettyFormat());
20 private final static Logger logger = Logger.getLogger(XMLValueFactory.class.getName());
21
22 public Class getValueClass() {
23 return ElementValue.class;
24 }
25
26 public String getElementName() {
27 return "xml";
28 }
29
30 public ValueDescriptor loadDescriptor(Element element) {
31 AnyValueDescriptor valueDescriptor = new AnyValueDescriptor();
32 List allowedValueElements = element.getChildren("allowed-content-type");
33 for ( Iterator i = allowedValueElements.iterator(); i.hasNext(); ) {
34 Element allowedValueElement = (Element)i.next();
35 String allowedValue = allowedValueElement.getTextTrim();
36 valueDescriptor.addAllowedContentType(allowedValue);
37 }
38 return valueDescriptor;
39 }
40
41 public Value load(Element element) {
42 Iterator iterator = element.getChildren().iterator();
43 if ( iterator.hasNext() ) {
44 return new ElementValue((Element)iterator.next());
45 }
46 return new ElementValue(element);
47 }
48
49 public void save(Value value, XMLStringWriter writer) {
50 ElementValue elementValue = (ElementValue)value;
51 try {
52 xmlOutputter.output(elementValue.getRootElement(), writer);
53 } catch (IOException e) {
54 logger.log(Level.SEVERE, "Could not persist ElementValue", e);
55 }
56 writer.writeEndTag(XMLWriter.createEndTag(getElementName()));
57 }
58 } |
Popular Tags |
Java API By Example, From Geeks To Geeks.