chaining servlets

This is done by default as Lift is a Filter.

You can also explicitly mark a Req to not be served by Lift. Please see LiftRules.liftRequest

Br's,
Marius

On Mon, Mar 2, 2009 at 9:51 PM, Meredith Gregory <lgreg.meredith@gmail.com> wrote:

Lifted, scalads and lasses,

Does anybody have a working sample of chaining the lift servlet with a 3rd party servlet? i'm interested in doing this with the Jersey servlet to get some of their request/response rendering support.

Best wishes,

--greg

--
L.G. Meredith
Managing Partner
Biosimilarity LLC
806 55th St NE
Seattle, WA 98105

+1 206.650.3740

http://biosimilarity.blogspot.com

On Mon, Mar 2, 2009 at 8:51 PM, Meredith Gregory <lgreg.meredith@gmail.com> wrote:

Lifted, scalads and lasses,

Does anybody have a working sample of chaining the lift servlet with a 3rd party servlet? i'm interested in doing this with the Jersey servlet to get some of their request/response rendering support.

This is why we made Lift a Filter :)
 

Best wishes,

--greg

--
L.G. Meredith
Managing Partner
Biosimilarity LLC
806 55th St NE
Seattle, WA 98105

+1 206.650.3740

http://biosimilarity.blogspot.com

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Viktor Klang
Senior Systems Analyst

Marius, Viktor,

Many thanks for your prompt responses. You'll have to pardon me as i've not graduated from Web101 ;-). i was really looking for an example. To illustrate, in looking at web.xml in a archetype-generated lift project i see that only filter and filter mapping is defined. How is a servlet then chosen?

Also, i'm sort of interested in wrapping lift's request processing. Here's what i mean. If i've understood what Jersey does correctly (and that's a big if), then it will do Request and Response rendering. So, what i want is

 == HttpRequest ==> (JerseyFilter) == ModifiedRequest ==> (LiftFilter) ==> Response == (JerseyFilter) ==> ModifiedOutboundResponse ==>

It's not clear to me how this is accomplished. There's the dead obvious idea, but i'm leary that this won't work because the "types" are unlikely to line up. 

Best wishes,

--greg

On Mon, Mar 2, 2009 at 1:00 PM, Viktor Klang <viktor.klang@gmail.com> wrote:

On Mon, Mar 2, 2009 at 8:51 PM, Meredith Gregory <lgreg.meredith@gmail.com> wrote:

Lifted, scalads and lasses,

Does anybody have a working sample of chaining the lift servlet with a 3rd party servlet? i'm interested in doing this with the Jersey servlet to get some of their request/response rendering support.

This is why we made Lift a Filter :)
 

Best wishes,

--greg

--
L.G. Meredith
Managing Partner
Biosimilarity LLC
806 55th St NE
Seattle, WA 98105

+1 206.650.3740

http://biosimilarity.blogspot.com

--
Viktor Klang
Senior Systems Analyst

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L.G. Meredith
Managing Partner
Biosimilarity LLC
806 55th St NE
Seattle, WA 98105

+1 206.650.3740

http://biosimilarity.blogspot.com

hehe, no worries, I'm one of your fans. :)

You should be able to accomplish this by having the filter mapping for Jersey in web.xml placed before the Lift filter mapping:

"Recall that a filter chain is one of the objects passed to the doFilter method of a filter. This chain is formed indirectly via filter mappings. The order of the filters in the chain is the same as the order that filter mappings appear in the web application deployment descriptor. "

http://java.sun.com/products/servlet/Filters.html


The Jersey will handle the request first, then pass it thru to Lift, then back.
I of course have not tested this with Jersey and do not know if there are any strange things that can happen.
But I'm sure you'll find out and get back to us ;)


Cheers,
Viktor

On Mon, Mar 2, 2009 at 11:28 PM, Meredith Gregory <lgreg.meredith@gmail.com> wrote:

Marius, Viktor,

Many thanks for your prompt responses. You'll have to pardon me as i've not graduated from Web101 ;-). i was really looking for an example. To illustrate, in looking at web.xml in a archetype-generated lift project i see that only filter and filter mapping is defined. How is a servlet then chosen?

Also, i'm sort of interested in wrapping lift's request processing. Here's what i mean. If i've understood what Jersey does correctly (and that's a big if), then it will do Request and Response rendering. So, what i want is

 == HttpRequest ==> (JerseyFilter) == ModifiedRequest ==> (LiftFilter) ==> Response == (JerseyFilter) ==> ModifiedOutboundResponse ==>

It's not clear to me how this is accomplished. There's the dead obvious idea, but i'm leary that this won't work because the "types" are unlikely to line up. 

Best wishes,

--greg

On Mon, Mar 2, 2009 at 1:00 PM, Viktor Klang <viktor.klang@gmail.com> wrote:

On Mon, Mar 2, 2009 at 8:51 PM, Meredith Gregory <lgreg.meredith@gmail.com> wrote:

Lifted, scalads and lasses,

Does anybody have a working sample of chaining the lift servlet with a 3rd party servlet? i'm interested in doing this with the Jersey servlet to get some of their request/response rendering support.

This is why we made Lift a Filter :)
 

Best wishes,

--greg

--
L.G. Meredith
Managing Partner
Biosimilarity LLC
806 55th St NE
Seattle, WA 98105

+1 206.650.3740

http://biosimilarity.blogspot.com

--
Viktor Klang
Senior Systems Analyst

--
L.G. Meredith
Managing Partner
Biosimilarity LLC
806 55th St NE
Seattle, WA 98105

+1 206.650.3740

http://biosimilarity.blogspot.com

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Viktor Klang
Senior Systems Analyst