private Converter<Object> provide(BeanProperty property, Genson genson) {
// contextual converters must not be retrieved from cache nor stored in cache, by first
// trying to create it and reusing it during the
// call to genson.provideConverter we avoid retrieving it from cache, and by setting
// DO_NOT_CACHE_CONVERTER to true we tell genson not to store
// this converter in cache
@SuppressWarnings("unchecked")
Converter<Object> converter =
(Converter<Object>) contextualConverterFactory.provide(property, genson);
if (converter != null) {
ThreadLocalHolder.store(DO_NOT_CACHE_CONVERTER_KEY, true);
ThreadLocalHolder.store(CONTEXT_KEY, converter);
}
try {
return genson.provideConverter(property.type);
} finally {
if (converter != null) {
ThreadLocalHolder.remove(DO_NOT_CACHE_CONVERTER_KEY, Boolean.class);
ThreadLocalHolder.remove(CONTEXT_KEY, Converter.class);
}
}
}
@Override
public Converter<?> create(Type type, Genson genson) {
Converter<?> converter = ThreadLocalHolder.get(CONTEXT_KEY, Converter.class);
if (converter != null) return converter;
return delegatedFactory.create(type, genson);
}