/**
* 将旧的 serializedObject converter为 新的 serializedObject,如果expectedContentType 和旧的一致，那么直接返回 只是一个确认操作
*
* @param serializedObject The object to convert
* @param expectedContentType The content type of the SerializedObject to return
* @return a SerializedObject containing data in the expected content type
*/
@SuppressWarnings("unchecked")
protected <S, T> SerializedObject<T> ensureCorrectContentType(
SerializedObject<S> serializedObject, Class<T> expectedContentType) {
if (!expectedContentType.isAssignableFrom(serializedObject.getContentType())) {
ContentTypeConverter<S, T> converter =
converterFactory.getConverter(serializedObject.getContentType(), expectedContentType);
return converter.convert(serializedObject);
}
return (SerializedObject<T>) serializedObject;
}
@SuppressWarnings("unchecked")
@Override
public <R> SerializedObject<R> serializeMetaData(
Serializer serializer, Class<R> expectedRepresentation) {
if (serializer.equals(serializedMetaData.getSerializer())) {
final SerializedObject serializedObject = serializedMetaData.getSerializedObject();
return CONVERTER_FACTORY
.getConverter(serializedObject.getContentType(), expectedRepresentation)
.convert(serializedObject);
}
return serializer.serialize(serializedMetaData.getObject(), expectedRepresentation);
}
