How to use

AbstractJsonParsableRegistry

in

org.eclipse.ditto.signals.base

private T fromJson(final String jsonString, final DittoHeaders dittoHeaders) {
  final JsonObject jsonObject = JsonFactory.newObject(jsonString);
  return fromJson(jsonObject, dittoHeaders);
}

private T fromJson(final JsonObject jsonObject, final DittoHeaders dittoHeaders) {
  final String type = resolveType(jsonObject);
  final JsonParsable<T> jsonObjectParsable = parseStrategies.get(type);
  if (null != jsonObjectParsable) {
    try {
      return jsonObjectParsable.parse(jsonObject, dittoHeaders);
    } catch (final JsonRuntimeException jre) {
      final JsonExceptionBuilder builder = JsonRuntimeException.newBuilder(jre.getErrorCode())
          .message("Error when parsing Json type '" + type + "': " + jre.getMessage())
          .cause(jre.getCause());
      jre.getDescription().ifPresent(builder::description);
      jre.getHref().ifPresent(builder::href);
      // rethrow after enhancing the exception with the type which failed to parse
      throw (JsonRuntimeException) builder.build();
    }
  } else {
    throw JsonTypeNotParsableException.newBuilder(type, getClass().getSimpleName())
        .dittoHeaders(dittoHeaders)
        .build();
  }
}

private T fromJson(final JsonObject jsonObject, final DittoHeaders dittoHeaders) {
  final String type = resolveType(jsonObject);
  final JsonParsable<T> jsonObjectParsable = parseStrategies.get(type);
  if (null != jsonObjectParsable) {
    try {
      return jsonObjectParsable.parse(jsonObject, dittoHeaders);
    } catch (final JsonRuntimeException jre) {
      final JsonExceptionBuilder builder = JsonRuntimeException.newBuilder(jre.getErrorCode())
          .message("Error when parsing Json type '" + type + "': " + jre.getMessage())
          .cause(jre.getCause());
      jre.getDescription().ifPresent(builder::description);
      jre.getHref().ifPresent(builder::href);
      // rethrow after enhancing the exception with the type which failed to parse
      throw (JsonRuntimeException) builder.build();
    }
  } else {
    throw JsonTypeNotParsableException.newBuilder(type, getClass().getSimpleName())
        .dittoHeaders(dittoHeaders)
        .build();
  }
}

private T fromJson(final String jsonString, final DittoHeaders dittoHeaders) {
  final JsonObject jsonObject = JsonFactory.newObject(jsonString);
  return fromJson(jsonObject, dittoHeaders);
}