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Re: [Resteasy-developers] Fwd: Problem with Spring and RestEasy integration
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From: Martin A. <sp...@ma...> - 2008-08-22 14:00:41
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Paulo,
One thing that tripped me up was that subresources are never injected
(stated by the spec).
Example:
@Path("/")
public class MyResourceA {
@Resource
Context ctx; // this is injected
@Path("foo")
public MyResourceB produceB() {
return new MyResourceB();
}
}
public class MyResourceB {
@Resource
Context ctx; // this is NOT injected
}
Could that be the problem?
Martin
On 11 Aug 2008, at 16:03, Paulo Siqueira wrote:
> I'm having trouble making the problem easy to reproduce... it
> happens sometimes, but not always.
>
> One thing I noted that is different in your tests from ours is that
> you don't have a method answering a URL directly (without sub-
> resources) and using a spring injected bean, which is our case. I
> changed our local test to use a sub-resource and the problem seemed
> to vanished, although I cannot be 100% sure yet.
>
> I could not make your environment run here, but I'll write down what
> I think could be a test case for my scenario, that could be inserted
> in the SmokeTest.
>
> This is the new block test:
>
> GetMethod method = new GetMethod("http://localhost:8080/spring-integration-test/direct/direct-call
> ");
> int status = client.executeMethod(method);
> Assert.assertEquals(HttpResponseCodes.SC_OK, status);
> Assert.assertEquals("DIRECT OK", method.getResponseBodyAsString());
> method.releaseConnection();
>
> To implement this, we could use the following bean:
>
> @Path("/direct")
> @Service("direct")
> public class DirectBean {
> @GET
> @Path("direct-call")
> public String directCall() {
> return directSpring.getDirectResult();
> }
>
> @Resource(name="directSpring")
> private DirectSpring directSpring;
> }
>
> and the spring bean:
>
> @Service("directSpring")
> public class DirectSpring {
> public String getDirectResult() {
> return "DIRECT OK";
> }
> }
>
> does this make sense? Does it make the problem easier to understand?
>
> PS.: If this really reproduces our problem, you may have to run the
> test some times before the error appears, since it works sometimes.
>
> []s,
>
> On Fri, Aug 8, 2008 at 7:20 PM, Bill Burke <bb...@re...> wrote:
> I cannot reproduce this problem. Do you have resteasy's scanning
> turned on? That would screw things up.
>
> (I sent you the code I tested with. If you didn't get it ping me
> privately).
>
> Paulo Siqueira wrote:
> Sorry, I forgot to check the mailing list address in the CC...
>
> ---------- Forwarded message ----------
> From: *Paulo Siqueira* <pau...@gm... <mailto:pau...@gm...
> >>
> Date: Fri, Aug 8, 2008 at 3:12 PM
> Subject: Re: [Resteasy-developers] Problem with Spring and RestEasy
> integration
> To: Bill Burke <bb...@re... <mailto:bb...@re...>>
>
>
> Hi Bill,
>
> We don't want an instance per request. It doesn't matter at moment
> actually. The problem is that it isn't working even with everything
> singleton (which is the default scope in singleton). Do we have to
> do anything special to flag the RESTful beans as singleton?
>
> The main problem is the a dependency of the RESTful bean is not
> being injected sometimes, although the bean itself is always there,
> thus giving us NullPointers. In the example Fabio sent it would be
> the field "Seci" that would end up being null.
>
> []s,
>
>
> On Fri, Aug 8, 2008 at 12:16 PM, Bill Burke <bb...@re... <mailto:bb...@re...
> >> wrote:
>
> So you want a instance per request model?
>
> I'm not that familiar with spring and the RestEasy code expects a
> singleton model.
>
> I'll try out your code and see if I can figure things out.
>
> Fábio Serra wrote:
> > Hi,
> >
> > We have a problem integrating RestEasy and Spring. It seems
> like when
> > two users access the same resource at the same time, the
> > SpringContextLoaderListener is not injecting after the first
> instance.
> > After that all the resource instances aren't injected by Spring
> causing
> > NullPointerException at the spring injected objects.
> >
> > My web.xml is the same as the examples of this integration.
> >
> > Here is my resource class:
> > @Service("locating")
> > @Path("/")
> > public class LocatingResource {
> > public LocatingResource() {
> > System.out.println("Instanciando....");
> > }
> >
> > @GET
> > @Path("locating")
> > public String getLocating() {
> > System.out.println("Class: "+ this);
> > System.out.println("LOCATING...("+getSpringTest()+")");
> > return getSeci().toString();
> > }
> >
> > @Resource
> > private Seci seci;
> > public void setSeci( Seci seci ) {
> > System.out.println("Classe1: " +this);
> > System.out.println("SACI2: "+ seci);
> > this.seci = seci;
> > }
> > public Seci getSeci() {
> > return this.seci;
> > }
> > }
> >
> > My ApplicationContext.xml :
> > <beans xmlns="http://www.springframework.org/schema/beans"
> > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> > xmlns:context="http://www.springframework.org/schema/context
> "
> > default-autowire="byName"
> > xsi:schemaLocation="http://www.springframework.org/schema/beans
> >
> > http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
> > http://www.springframework.org/schema/context
> >
> > http://www.springframework.org/schema/context/spring-context-2.5.xsd
> "
> >
> > >
> > <context:annotation-config/>
> > <context:spring-configured/>
> > <context:component-scan base-package="padauan"
> > annotation-config="true"/>
> > </bean>
> >
> >
> > Thanks,
> >
> > Fabio Serra
> >
> >
>
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> >
> >
>
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> >
>
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> > https://lists.sourceforge.net/lists/listinfo/resteasy-developers
>
> --
> Bill Burke
> JBoss, a division of Red Hat
> http://bill.burkecentral.com
>
>
>
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> Grand prize is a trip for two to an Open Source event anywhere in
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> _______________________________________________
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> Res...@li...
> <mailto:Res...@li...>
>
> https://lists.sourceforge.net/lists/listinfo/resteasy-developers
>
>
>
>
> --
> Paulo R C Siqueira
> SCJP / SCWCD
> http://www.ipti.org.br
> Contato: (11) 8149-5046
>
>
>
> --
> Paulo R C Siqueira
> SCJP / SCWCD
> http://www.ipti.org.br
> Contato: (11) 8149-5046
>
>
> ------------------------------------------------------------------------
>
> -------------------------------------------------------------------------
> This SF.Net email is sponsored by the Moblin Your Move Developer's
> challenge
> Build the coolest Linux based applications with Moblin SDK & win
> great prizes
> Grand prize is a trip for two to an Open Source event anywhere in
> the world
> http://moblin-contest.org/redirect.php?banner_id=100&url=/
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> Resteasy-developers mailing list
> Res...@li...
> https://lists.sourceforge.net/lists/listinfo/resteasy-developers
>
> --
> Bill Burke
> JBoss, a division of Red Hat
> http://bill.burkecentral.com
>
>
>
>
> --
> Paulo R C Siqueira
> SCJP / SCWCD
> http://www.ipti.org.br
> Contato: (11) 8149-5046
> -------------------------------------------------------------------------
> This SF.Net email is sponsored by the Moblin Your Move Developer's
> challenge
> Build the coolest Linux based applications with Moblin SDK & win
> great prizes
> Grand prize is a trip for two to an Open Source event anywhere in
> the world
> http://moblin-contest.org/redirect.php?banner_id=100&url=/_______________________________________________
> Resteasy-developers mailing list
> Res...@li...
> https://lists.sourceforge.net/lists/listinfo/resteasy-developers
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