|
1 package com.thoughtworks.xstream.converters.extended;
2
3 import com.thoughtworks.xstream.converters.Converter;
4 import com.thoughtworks.xstream.converters.MarshallingContext;
5 import com.thoughtworks.xstream.converters.UnmarshallingContext;
6 import com.thoughtworks.xstream.io.HierarchicalStreamReader;
7 import com.thoughtworks.xstream.io.HierarchicalStreamWriter;
8
9 import java.awt.*;
10 import java.util.HashMap  ;
11 import java.util.Map ;
12
13
19 public class ColorConverter implements Converter {
20
21 public boolean canConvert(Class type) {
22 return type.equals(Color.class);
23 }
24
25 public void marshal(Object source, HierarchicalStreamWriter writer, MarshallingContext context) {
26 Color color = (Color) source;
27 write("red", color.getRed(), writer);
28 write("green", color.getGreen(), writer);
29 write("blue", color.getBlue(), writer);
30 write("alpha", color.getAlpha(), writer);
31 }
32
33 public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) {
34 Map elements = new HashMap ();
35 while (reader.hasMoreChildren()) {
36 reader.moveDown();
37 elements.put(reader.getNodeName(), Integer.valueOf(reader.getValue()));
38 reader.moveUp();
39 }
40 Color color = new Color(((Integer ) elements.get("red")).intValue(),
41 ((Integer ) elements.get("green")).intValue(),
42 ((Integer ) elements.get("blue")).intValue(),
43 ((Integer ) elements.get("alpha")).intValue());
44 return color;
45 }
46
47 private void write(String fieldName, int value, HierarchicalStreamWriter writer) {
48 writer.startNode(fieldName);
49 writer.setValue(String.valueOf(value));
50 writer.endNode();
51 }
52
53 }
54 |
Popular Tags |
Java API By Example, From Geeks To Geeks.