On Tue, May 21, 2019 at 7:23 PM Uzh Valin <[email protected]> wrote: > > Thanks Tatu, but how do I read it back when I send this as part exception > JSON body? It seems like when if read the body with > HttpStatusCodeException.getResponseBodyAsString(), it contains all sort of > JsonNode data rather than the actual data that I send back from the Rest > producer.
I am not sure I understand -- `JsonNode` is simply node-based representation of JSON, which serializes to textual content like POJOs. There is nothing special about it, it's just one way to manipulate JSON content that may or may not have specific structure. The other side has no idea what kind of in-memory representation server uses: it's just json. -+ Tatu +- > > > On Tuesday, May 21, 2019 at 7:08:22 PM UTC-4, Tatu Saloranta wrote: >> >> On Tue, May 21, 2019 at 3:57 PM Uzh Valin <[email protected]> wrote: >> > >> > Ok, but how does Jackson know which custom mapper to call if we are simply >> > putting obj.getFirstProperty() in the response map? I know need one value >> > and would want the serializer to ignore all other properties regardless >> > whether they have been initialized with default values. >> >> It doesn't, but what I am saying is that your approach will not work as >> shown. >> If you add String values, they will be JSON Strings and must be >> escaped. That's how Strings are handled -- otherwise Jackson would >> have to somehow re-parse String into JSON, and then go back to >> serializing contents, adding significant overhead that is not usually >> needed. Assuming that String was valid JSON; if not it would either >> have throw exception, or quietly determine it has to be used as-is... >> or something. >> >> If you want to apply different rules there are a few ways you could >> achieve that -- custom serializers are one way -- or you could >> serialize-as-String-then-deserialize if you want to apply filtering. >> Perhaps latter is the way to go. >> >> In fact, you could probably use something like: >> >> JsonNode node = mapper.valueToTree(inputValue); >> results.put(key, node); >> >> which would convert from POJO into JsonNode -- and this does use >> serialize() methods, filtering, but with less overhead -- and then add >> JsonNode as value to be serialized by "parent" mapper. >> >> I think this might achieve what you are attempting here? >> >> -+ Tatu +- >> >> > >> > >> > On Tuesday, May 21, 2019 at 2:40:27 PM UTC-4, Tatu Saloranta wrote: >> >> >> >> Just one question: >> >> >> >> >> >>> >> >>> responseBody.put("firstProperty", >> >>> serializeFirstProperty(obj.getFirstProperty())); >> >>> responseBody.put("secondProperty", >> >>> serializeSecondProperty(obj.getSecondProperty())); >> >>> responseBody.put("thirdProperty", >> >>> serializeThirdProperty(obj.getThirdProperty())); >> >> >> >> >> >> Why do you serialize values? That is where "double-escaping" comes: you >> >> are adding JSON String within content to be JSON serialized. Just add >> >> values as is >> >> >> >> responseBody.put("firstProperty", obj.getFirstProperty()); >> >> >> >> and contents would get serialized just once. >> >> >> >> -+ Tatu +- >> >> >> >> >> > -- >> > You received this message because you are subscribed to the Google Groups >> > "jackson-user" group. >> > To unsubscribe from this group and stop receiving emails from it, send an >> > email to [email protected]. >> > To post to this group, send email to [email protected]. >> > To view this discussion on the web visit >> > https://groups.google.com/d/msgid/jackson-user/e9420cec-0ddb-4af4-bfc7-1383bede4920%40googlegroups.com. >> > For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to the Google Groups > "jackson-user" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/jackson-user/ddd137c4-0f74-4976-9a86-64a9f7f1daba%40googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "jackson-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/jackson-user/CAL4a10jKWxW43zvEoRj1TLnq5D%2Be%2BiVJn7b%3DSwT5JtQRX6U%2B9A%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
