inconsistency with Time serialization

[colinsurprenant]

Time object will be handled by to_s at https://github.com/guyboertje/jrjackson/blob/master/lib/jrjackson/jrjackson.rb#L45

JrJackson::Json.dump(Time.now)
=> "2014-06-10 23:19:37 -0400"

Time object will be handled by Jackson as a Java::JavaUtil::Date

JrJackson::Json.dump([Time.now])
=> "[\"2014-06-10 23:24:11 EDT\"]"

Time object will be handled by Jackson as a Java::JavaUtil::Date

JrJackson::Raw.generate(Time.now)
=> "\"2014-06-10 23:25:04 EDT\""

Wouldn't it be better to also add Time as a shortcut to JrJackson::Raw.generate at https://github.com/guyboertje/jrjackson/blob/master/lib/jrjackson/jrjackson.rb#L36 ?

[guyboertje]

hmmm - need to check. But there is are many of datetime like objects in the ruby/rails eco system.
Time, DateTime, Date and then the Rails wrappers with time zone.

Also I wonder whether Date or DateTime is consistent in and out of an array.

[colinsurprenant]

JrJackson::Json.dump(Time.now.to_date)
=> "2014-06-11"

JrJackson::Json.dump([Time.now.to_date])
=> "[\"2014-06-11 00:00:00 EDT\"]"

JrJackson::Json.dump(Time.now.to_datetime)
=> "2014-06-11T09:12:16-04:00"

JrJackson::Json.dump([Time.now.to_datetime])
=> "[\"2014-06-11 09:12:22 EDT\"]"

also, as noted, JRuby coerces Time object to Java::JavaUtil::Date

irb(main):033:0> Time.now.to_java
=> #<Java::JavaUtil::Date:0x1042db3e>

but Date and DateTime to OrgJodaTime::DateTime

Time.now.to_datetime.to_java
=> #<DateTime:0x2012e4d @dt=#<Java::OrgJodaTime::DateTime:0x1b86c242>, @sub_millis=0, @of=(-1/6), @sg=2299161>
Time.now.to_date.to_java
=> #<Date:0x2e80f606 @dt=#<Java::OrgJodaTime::DateTime:0x14981bc4>, @sub_millis=0, @of=0, @sg=#<Date::Infinity:0x520a06c6 @d=-1>>

So it looks like Java::JavaUtil::Date and Java::OrgJodaTime::DateTime are also correctly handled by Jackson but JrJackson::Json.dump will apply to_s on Time, Date and DateTime.

[PetrKaleta]

Any update on this issue? Please also have a look on my comments in this issue #12 Its not just a "format" issue, but serialisation of UTC time works wrong

[guyboertje]

I have added some comments to #12 and copied them to a new wiki page. Ruby Time serialisation. @PetrKaleta, I believe that the additions by @colinsurprenant implemented in release 0.2.8 fixes this. Closing.