typeadaptertrial.java

TypeToken<Map<String, String>> mapType = new TypeToken<Map<String, String>>() {
            };
            new TypeAdapterFactory() {

                @Override
                public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
                    if(type.equals(mapType)) {
                        return new TypeAdapter<T>() {
                            @Override
                            public void write(JsonWriter out, T value) throws IOException {

                            }

                            @Override
                            public T read(JsonReader in) throws IOException {
                                if(blah) {
                                    return (T) gson.fromJson(in, new TypeToken<HashMap<String, String>>(){}.getType());
                                }
                                else {
                                    return (T) gson.fromJson(in, new TypeToken<TreeMap<String, String>>(){}.getType());
                                }
                            }
                        };
                    }
                    return null;
                }
            };