The Json class can automatically serialize to/from POJOs, OrderedMap, Array, String, Float, and Boolean. It doesn't know ArrayMap, so will treat it like a POJO, which isn't quite what you want. In this case you'll need to write a serializer that knows how to read/write ArrayMaps:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
| static public void main (String[] args) throws Exception {
Json json = new Json();
json.setSerializer(ArrayMap.class, new Json.Serializer<ArrayMap>() {
public void write (Json json, ArrayMap map, Class knownType) {
Object[] keys = map.keys;
Object[] values = map.values;
json.writeObjectStart();
for (int i = 0, n = map.size; i < n; i++)
json.writeValue(keys[i].toString(), values[i]);
json.writeObjectEnd();
}
public ArrayMap read (Json json, Object jsonData, Class type) {
ArrayMap map = new ArrayMap();
for (Entry entry : ((OrderedMap<?, ?>)jsonData).entries())
map.put(entry.key, entry.value);
return map;
}
});
json.addClassTag("map", ArrayMap.class);
ArrayMap map = new ArrayMap();
map.put("3", "Once upon a time, there are 3 bees");
map.put("4", "One of them was so ugly, so the other two died");
map.put("5", "Left alone, the ugly bee suicided");
map.put("6", "THE END");
String text = json.toJson(map);
System.out.println(json.prettyPrint(text));
ArrayMap map2 = json.fromJson(ArrayMap.class, text);
System.out.println(map2);
} |
If your "text" fields was an OrderedMap instead of ArrayMap, you wouldn't have to do this (but of course these two map implementations are quite different).
