deserialize and back java objects send via URLConnection

[iannos]

Greetings

I have a situation where I need to deserialize from Lift arbitrary
java objects (the modelObject in the following example) send via a
URLConnection from a java applet. The old implementation used a
servlet (gamesservlet1) to accept the applet request and deserialize
the object.

Basically I want to be able to deserialize java objects send this way
and also serialize and send back with a LiftResponse java objects back
to the applet.

Calling code example from the applet:

String servletURL = webServerStr2;
URL gamesservlet1 = new URL( servletURL);
URLConnection servletConnection1 = gamesservlet1.openConnection();

servletConnection1.setDoInput(true);
servletConnection1.setDoOutput(true);
servletConnection1.setUseCaches (false);
servletConnection1.setRequestProperty ("Content-Type", "application/
octet-stream");
sendModelToServlet1(servletConnection1, modelObject);
inputFromServlet = new
ObjectInputStream(servletConnection1.getInputStream());
...


Thanks in advance

Jack Dimas
Athens, Hellas

[David Pollak]

You can send an Array[Byte] as a response using InMemoryResponse see http://exploring.liftweb.net/master/index-9.html

To respond to a specific URL, Lift's REST Helper will help you.  See http://stable.simply.liftweb.net/#toc-Chapter-5

--
You received this message because you are subscribed to the Google Groups "Lift" group.
To post to this group, send email to lif...@googlegroups.com.
To unsubscribe from this group, send email to liftweb+u...@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/liftweb?hl=en.

--
Lift, the simply functional web framework http://liftweb.net

Simply Lift http://simply.liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Blog: http://goodstuff.im

[iannos]

Thanks a lot David, I'll give it a try later today.

On Mar 18, 12:55 am, David Pollak <feeder.of.the.be...@gmail.com>
wrote:
> You can send an Array[Byte] as a response using InMemoryResponse seehttp://exploring.liftweb.net/master/index-9.html
>
> To respond to a specific URL, Lift's REST Helper will help you.  Seehttp://stable.simply.liftweb.net/#toc-Chapter-5

> Beginning Scalahttp://www.apress.com/book/view/1430219890

[iannos]

Guys ... I love you! David many thanks for pointing to the right
direction. Just for the record:

in boot.scala:
// stateful dispatch
LiftRules.dispatch.append {
// simulate legacy app servlets
LegacyServletInterceptor
}

in RestHelper object:
object LegacyServletInterceptor extends RestHelper
{
serve {
case "webprog" :: "PlayServletStoreVect" :: _ Post req => {
var inputFromApplet: ObjectInputStream = null
var wireObject: WireObject = null
req.body match {
case Full(bytes: Array[Byte]) => {
inputFromApplet = new ObjectInputStream(new
ByteArrayInputStream(bytes))
wireObject =
inputFromApplet.readObject().asInstanceOf[WireObject]
println("WireObject get something "+ wireObject.getMethod() )
inputFromApplet.close()
storeToDB(wireObject)
}
case _ => println("empty request!")
}

// now respond back to applet a dummy object
val baos = new ByteArrayOutputStream()
val oos = new ObjectOutputStream(baos)
oos.writeObject(DummyWireObject)
oos.close()
Full(InMemoryResponse(baos.toByteArray,
("Content-Type" -> "application/octet-stream") :: Nil,
Nil,
200))

}
}
...
...
@serializable object DummyWireObject

Please excuse my code style, I'm just converting from classic ASP to
Scala-Lift so it is quite a shock.

Jack Dimas
Athens, Greece