Sounds to me like you want to create yourself a small helper function
that can map that structure into your own case class, something like:
case class TempReading(node:String, dt:Int, temp:Double)
It should be possible to do this as a layer on top of the json parser.
So you can go from:
Object(
List(
JField(node,JString(00:1D:C9:00:04:9F)),
JField(dt,JInt(1254553581405)),
JField(temp,JDouble(27.5))
)
)
to:
TempReading("00:1D:C9:00:04:9F", 1254553581405, 27.5)
A Map would be an improvement over the raw json, but still is nowhere
near as concise or type-safe as the dedicated structure.
You probably also want to rethink using ints for datetime (I guess
this is what dt represents). Take a look at the scala-time library,
which is a nice wrapper over Java's joda-time.
On Sat, Oct 3, 2009 at 9:46 AM, Peter Robinett <pe...@bubblefoundry.com> wrote:
>
> I guess this is basically a question for Joni, but I figure I'll throw
> it out here for everyone to see.
>
> Would it be possible to have extract() support Mapper instances in
> additional to standard case classes?
>
> After parsing some JSON I get the following JValue: JObject(List(JField
> (node,JString(00:1D:C9:00:04:9F)), JField(dt,JInt(1254553581405)),
> JField(temp,JDouble(27.5)))). I'd like to turn this into a new
> instance of my Packet model and it'd be awesome if extract could do
> that.
>
> I don't know how hard would it be to add this feature, so I don't know
> if this is a reasonable request. This would make making JSON API
> endpoints really easy for me and I hope for other people too.
>
> Peter Robinett
> >
>
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Lift" group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/liftweb?hl=en
-~----------~----~----~----~------~----~------~--~---
