Re: grails in sailfin converged sip servlet container

> thanks burt - i had a chance to try out your simple suggestion today
> and it worked! i'm so pleased to be able to use grails with sailfin
> now
>
> On Tue, Jun 24, 2008 at 11:23 PM, Burt Beckwith <burt@...> wrote:
>> Services don't (or at least shouldn't) have anything to do with web requests.
>> All you need is a hook into retrieving Spring beans. The docs suggest
>> registering the "consumer" as a Spring bean to enable dependency injection
>> but this is contrived and often impossible if Spring cannot manage the
>> object's lifecycle, so you could instead pull the Spring beans using a helper
>> class like this one:
>>
>> import org.codehaus.groovy.grails.web.context.ServletContextHolder;
>> import org.springframework.context.ApplicationContext;
>> import org.springframework.web.context.support.WebApplicationContextUtils;
>>
>> public class SpringUtils {
>>
>>   /**
>>    * Get a spring bean by name.
>>    */
>>   @SuppressWarnings("unchecked")
>>   public static <T> T getBean(final String name) {
>>      ApplicationContext ctx =
>> (ApplicationContext)ServletContextHolder.getServletContext().getAttribute(
>>            GrailsApplicationAttributes.APPLICATION_CONTEXT);
>>      return (T)ctx.getBean(name);
>>   }
>> }
>>
>> The generics bit is a minor hack that saves you from having to cast the bean
>> to its type, so instead of having
>>
>>   MyService service = (MyService)SpringUtils.getBean("myService");
>>
>> you can just have
>>
>>   MyService service = SpringUtils.getBean("myService");
>>
>> This is entirely optional but pretty convenient.
>>
>> Burt
>>
>> On Tuesday 24 June 2008 11:05:12 pm Gregory Bond wrote:
>>> i'm trying to do something different with Grails that will be great
>>> for Grails and the SIP servlet community if it works out - but a few
>>> words describing the problem context before i get to my problem:
>>>
>>> SIP is a protocol for voice-over IP and SailFin is an open source SIP
>>> servlet container (https://sailfin.dev.java.net/) sponsored by Sun and
>>> Ericsson - the SailFin container effectively combines a SIP servlet
>>> container from Ericsson with Sun's open source GlassFish 2.2 HTTP
>>> servlet container - SailFin is called a 'converged' container because
>>> a deployed application (e.g. a war file) can contain *both* SIP
>>> servlets and HTTP servlets
>>>
>>> because SailFin includes GlassFish, i've been able to run Grails 1.0.3
>>> apps in the SailFin container with no problem but now i'm trying to
>>> "attain convergence" by packaging a SIP servlet app and a Grails app
>>> together in the same war file - what i want to do is have a doXXX()
>>> method invocation in the *SIP servlet* access my Grails app's domain
>>> model (either via a Grails service method or directly)
>>>
>>> what i'm trying to do appears to be a special case of Java (the SIP
>>> servlet doXXX method) accessing Grails (a Grails service method) but
>>> in this case the Grails app hasn't been invoked in response to an HTTP
>>> request - instead, the SIP servlet is being invoked in response to a
>>> SIP message - because there is no HTTP request involved in this
>>> scenario it doesn't appear possible to use the Spring bean approach
>>> described in section 8 of the Grails manual  ("the service layer"
>>> http://grails.org/doc/1.0.x/guide/8.%20The%20Service%20Layer.html)
>>>
>>> so is there some way a service instance can be created outside of the
>>> context of handling an HTTP request? if not, are there any other ways
>>> that the Java code in the SIP servlet could access a Grails service
>>> method or the domain model classes packaged in the same war file?
>>>
>>> i'm thinking that there must be a solution better than the
>>> "stand-alone" GORM approach (http://grails.org/GORM+-+StandAlone+Gorm)
>>> because the SIP servlet and the Grails app are packaged in the same
>>> war file and therefore have access to each other's compiled code
>>>
>>> any help here would be greatly appreciated - this won't just help me -
>>> solving this problem would be a big contribution to the burgeoning
>>> telecom-over-IP community since combining Grails with SIP servlets
>>> would enable developers to put together converged telecom applications
>>> really quickly
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe from this list, please visit:
>>>
>>>     http://xircles.codehaus.org/manage_email
>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe from this list, please visit:
>>
>>    http://xircles.codehaus.org/manage_email
>>
>>
>>
>
> ---------------------------------------------------------------------
> To unsubscribe from this list, please visit:
>
>    http://xircles.codehaus.org/manage_email
>
>
>