Untitled

Deserialising a generic with unknown compile time type where a field indicates the type
public class MsgWrapper<T> {
@Expose
private T Message;
@Expose
private String Type;
private String uri;
}

Type typeToken = new TypeToken<MsgWrapper<Notice>>(){}.getType();
gson.toJson(message,typeToken);

MsgWrapper<Notice> or MsgWrapper<Alert>

public MsgWrapper deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
        JsonObject object = json.getAsJsonObject();
        if(object.has("Type"))
        {
            MsgWrapper msgWrapper=new MsgWrapper();
            msgWrapper.setType(object.get("Type").getAsString());
            if(msgWrapper.getType().equalsIgnoreCase("Notice"))
            {
             msgWrapper.setMessage(context.deserialize(object.get("Message"), Notice.class));
            }
            else if(msgWrapper.getType().equalsIgnoreCase("Alert"))
            {
             msgWrapper.setMessage(context.deserialize(object.get("Message"), Alert.class));
            }
            return msgWrapper;
        }
        else
        {
            throw new JsonParseException("something is wrong...");
        }
    }
}