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1 package org.apache.slide.projector.descriptor;
2
3 import java.util.HashMap  ;
4 import java.util.Iterator ;
5 import java.util.Map ;
6
7 import org.apache.slide.projector.i18n.ParameterMessage;
8 import org.apache.slide.projector.value.MapValue;
9 import org.apache.slide.projector.value.Value;
10 import org.jdom.Element;
11
12 import de.zeigermann.xml.XMLStringWriter;
13 import de.zeigermann.xml.XMLWriter;
14
15 public class MapValueFactory implements ValueFactory {
16 public Class getValueClass() {
17 return MapValue.class;
18 }
19
20 public String getElementName() {
21 return "map";
22 }
23
24 public Value load(Element element) {
25 Map map = new HashMap ();
26 for ( Iterator i = element.getChildren().iterator(); i.hasNext(); ) {
27 Element childElement = (Element)i.next();
28 String key = childElement.getAttributeValue("key");
29 Element entryElement = (Element)childElement.getChildren().iterator().next();
30 map.put(key, ValueFactoryManager.getInstance().loadValue(entryElement));
31 }
32 return new MapValue(map);
33 }
34
35 public void save(Value value, XMLStringWriter writer) {
36 Map map = ((MapValue)value).getMap();
37 writer.writeStartTag(XMLWriter.createStartTag(getElementName()));
38 for ( Iterator i = map.entrySet().iterator(); i.hasNext(); ) {
39 Map.Entry entry = (Map.Entry )i.next();
40 if ( entry.getValue() instanceof Value ) {
41 writer.writeStartTag(XMLWriter.createStartTag("entry", "key", (String )entry.getKey()));
42 ValueFactoryManager.getInstance().saveValue((Value)entry.getValue(), writer);
43 writer.writeEndTag(XMLWriter.createEndTag("entry"));
44 }
45 }
46 writer.writeEndTag(XMLWriter.createEndTag(getElementName()));
47 }
48
49 public ValueDescriptor loadDescriptor(Element element) {
50 MapValueDescriptor valueDescriptor = new MapValueDescriptor();
51 for ( Iterator i = element.getChildren().iterator(); i.hasNext(); ) {
52 Element entry = (Element)i.next();
53 String key = entry.getAttributeValue("key");
54 String description = entry.getAttributeValue("description");
55 Element allowedEntryValueElement = (Element)element.getChildren().iterator().next();
56 ValueDescriptor allowedEntryValue = ValueFactoryManager.getInstance().loadValueDescriptor(allowedEntryValueElement);
57 valueDescriptor.addEntryDescriptor(new ParameterDescriptor(key, new ParameterMessage(description), allowedEntryValue));
58 }
59 return valueDescriptor;
60 }
61 } |
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