Support for java.util.Date in JsonElement is absent in lattest release

[Haghard]

What should i do it mongodb return result map with java.util.Date value but this is unsupported in json conversion.

 

class  JsonElement

.

.

.

56      } else if (obj == null || obj instanceof String || obj instanceof Number || obj instanceof Boolean) {

Commit id

7228719d (purplefox 2014-02-26 10:07:44 +0000 56)

[Paulo Lopes]

This is a feature that has been brought up lots of time, I think that for the next big version there should be some discussions on the json API either allow adding custom encoders do one can add a date encoder that complies to ecmascript spec 404 (json) where dates are converted to: YYYY-MM-DDTHH:mm:ss.sssZ

and it would be nice to have a way to register decoders so one could say:

public <T> T get(String fieldName, Class<T> clazz) {

  return getDecoderFor(clazz).decode(map.get(fieldName);

}

Or any other way that would not be too intrusive to the API...

[Haghard]

Yes, I have found discussion about this issue 

https://bugs.eclipse.org/bugs/show_bug.cgi?id=425613 

Thank you anyway

суббота, 29 марта 2014 г., 12:12:58 UTC+4 пользователь Haghard написал:

[Guilherme Ceschiatti Barbosa Moreira]

You could just convert into an object that Mongo undertands:

def dateToMongoDate(date: java.util.Date): JsonObject = {
  val obj = new JsonObject()
  obj.put("$date", s"${date.toInstant}")
  obj
}

This is Scala code, but almost the same in Java.

[Guilherme Ceschiatti Barbosa Moreira]

And then use it to create your doc:

val doc = new JsonObject()
  .put("symbol", symbol)
  .put("price", price)
  .put("volume", volume)
  .put("trade_time_str", tradeTimeStr) // from cedro
  .put("trade_time", dateToMongoDate(marketDataCalendar.getTime)) // from cedro but converted to db type
  .put("trade_time_dtc", tradeTimeDtc) // dtc format
  .put("insert_time", dateToMongoDate(insertTime))
  .put("bidask", bidask)
  .put("buyer", buyer)
  .put("seller", seller)
  .put("trade_id", tradeId)

Regards,

6qat