+
+
+ private static JsonSerializer serializer()
+ {
+ return new JsonSerializer().noTypeInfo();
+ }
+
+ private JsonDeserializer<TestOutputWord> keyDeserializer()
+ {
+ return deserializer(true);
+ }
+
+ private static JsonDeserializer<TestOutputWordCounter> valueDeserializer()
+ {
+ return deserializer(false);
+ }
+
+ private static <T> JsonDeserializer<T> deserializer(boolean isKey)
+ {
+ JsonDeserializer<T> deserializer = new JsonDeserializer<>();
+ deserializer.configure(
+ Map.of(JsonDeserializer.TYPE_MAPPINGS, typeMappingsConfig()),
+ isKey);
+ return deserializer;
+ }
+
+ private static String typeMappingsConfig()
+ {
+ return typeMappings()
+ .entrySet()
+ .stream()
+ .map(entry -> entry.getKey() + ":" + entry.getValue().getName())
+ .collect(Collectors.joining(","));
+ }
+
+ private static Map<String, Class> typeMappings()
+ {
+ return Map.of(
+ "word", TestOutputWord.class,
+ "counter", TestOutputWordCounter.class);
+ }