If you list both of these interceptors in your Interceptor.Classes
init-param in the order you want them to initialize they will initialize in
the specified order. You already list SpringInterceptor there. I think if
you just insert Stripersist before it then you'll be in business. (Once you
do that then you should remove their packages from Extension.Packages to
improve startup speed.)
-Ben
On Wed, May 26, 2010 at 10:25 PM, Nikolaos Giannopoulos <
nikol...@brightminds.org> wrote:
> All,
>
> After a lot of digging I have unfortunately gotten nowhere.
>
> I have found that the lifecycles that Stripersist intercepts are:
> @Intercepts({LifecycleStage.RequestInit, LifecycleStage.RequestComplete})
>
> Whereas the Spring Interceptor intercepts at:
> @Intercepts(LifecycleStage.ActionBeanResolution)
>
> SO if both were initialized at "execution" intercept time then I suspect we
> would not have any issues.
>
> However the NPE tells me that this issue appears due to order of
> "initialization" of Interceptors.
> I have found how to order the "execution" of Interceptors BUT not the
> "initialization" of Interceptors.
>
> Does anyone know how I can get Stripersist to initialize BEFORE Spring
> Interceptor?
> I have the following web.xml snippet and could really use a lot of help...
> PLEASE...
>
> <listener>
>
> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class><!--
> Automatically loads: /WEB-INF/applicationContext.xml -->
> </listener>
>
> <filter>
> <filter-name>StripesFilter</filter-name>
>
> <filter-class>net.sourceforge.stripes.controller.StripesFilter</filter-class>
> ...
> <init-param>
> <param-name>Interceptor.Classes</param-name>
>
> <param-value>net.sourceforge.stripes.integration.spring.SpringInterceptor</param-value>
> </init-param>
> <init-param>
> <param-name>Extension.Packages</param-name>
> <param-value>
> org.lightagents.ui.stripes.extensions,
> org.lightagents.ui.stripes.reload.extensions,
> org.stripesstuff.stripersist,
> net.sourceforge.stripes.integration.spring
> </param-value>
> </init-param>
> ...
>
> Stripersist is an awesome package and we have even built a shard layer on
> top of it... I surely hope there is a solution for it to play nice with
> Spring in this case.
>
> Thanks in Advance!
>
> --Nikolaos
>
>
>
> Nikolaos Giannopoulos wrote:
>
> Still trying to resolve this issue... and I think I have made some progress
> in ZERO'ing in on a reduced version of the issue.
>
> The following code works fine:
>
> public class BaseActionBean implements ActionBean {
> @SpringBean protected ModalityDao modalityDao;
> ...
>
> @Repository("modalityDao")
> public class ModalityDaoImpl extends BaseDaoImpl<Modality, Integer>
> implements ModalityDao {
> public List<Modality> findAll() {
> return (this.load());
> }
>
> However if I add a @PostConstruct on the above DAO as follows I get the
> exception reported previously (see below again):
>
> public class BaseActionBean implements ActionBean {
> @SpringBean protected ModalityDao modalityDao;
> ...
>
> @Repository("modalityDao")
> public class ModalityDaoImpl extends BaseDaoImpl<Modality, Integer>
> implements ModalityDao {
> public List<Modality> findAll() {
> return (this.load());
> }
> @PostConstruct
> private void init() {
> this.findAll();
> }
>
> It would appear that Spring's interceptor is doing its work BEFORE
> Stripersist's interceptor gets its chance to initialize.
>
> Because in digging through the Stripersist code we have:
>
> /**
> * Called by Stripes during initialization.
> */
> public void init(Configuration configuration)
> ...
> URL url =
> Thread.currentThread().getContextClassLoader().getResource("/META-INF/persistence.xml");
> ...
> init(url);
>
> ... and in turn init(url) calls ...
>
> public void init(URL xml)
> ...
> entityManagerFactories = new ConcurrentHashMap<String,
> EntityManagerFactory>();
>
> and that would clearly appear that entityManagerFactories is initialized
> however it is NULL when we run the 2nd code above.
>
> It would APPEAR we want the Stripersist interceptor to initialize BEFORE
> the Spring interceptor.
>
> Anyone know how we can accomplish this besides creating a Spring-Stripes
> extension class that simply calls them in the desired order???
>
> --Nikolaos
>
>
>
>
> Nikolaos Giannopoulos wrote:
>
> Freddy (and Aaron),
>
> Offhand THANK YOU for the help! While it DID help I'm afraid I'm not
> there yet... .
>
> So I added the @PostConstruct annotation (and <context:annotation-config
> /> in the applicationContext.xml to register things) and have the
> following code:
>
> @Service("modalityService")
> public class ModalityServiceImpl implements ModalityService {
>
> @Autowired
> private ModalityDao modalityDao;
>
> private ModalityCache modalityCache;
>
> public ModalityServiceImpl() {
> }
>
> @PostConstruct
> public void initService() {
> List<Modality> modalityList = this.modalityDao.findAll();
> this.modalityCache = new ModalityCache();
> this.modalityCache.init(modalityList);
> }
>
> And the @PostConstruct indeed helped as the initService method is getting
> executed however now I am back to the issue with Stripersist generating a
> NPE in the following method call:
>
> /**
> * Finds the EntityManagerFactory which is associated with the
> specified
> * persistence unit. Normally you shouldn't use this class because
> * Stripersist won't clean up any EntityManagers that you create.
> *
> * @param persistenceUnit the name of the persistence unit
> * @return an EntityManagerFactory or null
> */
> public static EntityManagerFactory getEntityManagerFactory(String
> persistenceUnit)
> {
> return entityManagerFactories.get(persistenceUnit);
> }
>
> Where: entityManagerFactories is NULL!!!!! So it is almost like even
> though the @PostConstruct annotated method gets invoked on bean post
> creation a layer of the onion has been lifted and now the problem appears
> that Stripersist hasn't completed its initialization. I have to think there
> MUST be a way to solve this!!! AHhhhhh???
>
> Full stack trace below....
>
> Many Thanks,
>
> --Nikolaos
>
>
> [#|2010-05-26T14:07:50.795-0400|INFO|glassfishv3.0|javax.enterprise.system.std.com.sun.enterprise.v3.services.impl|_ThreadID=11;_ThreadName=FelixStartLevel;|[14:07:50,774]
> ERROR
> org.springframework.web.context.ContextLoader.initWebApplicationContext -
> Context initialization failed
> org.springframework.beans.factory.BeanCreationException: Error creating
> bean with name 'modalityService': Invocation of init method failed; nested
> exception is java.lang.NullPointerException
> at
> org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:147)
> at
> org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:350)
> at
> org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1331)
> at
> org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473)
> at
> org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
> at java.security.AccessController.doPrivileged(Native Method)
> at
> org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
> at
> org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
> at
> org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
> at
> org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
> at
> org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
> at
> org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
> at
> org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
> at
> org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
> at
> org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
> at
> org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
> at
> org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
> at
> org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
> at
> org.apache.catalina.core.StandardContext.contextListenerStart(StandardContext.java:4591)
> at
> com.sun.enterprise.web.WebModule.contextListenerStart(WebModule.java:535)
> at
> org.apache.catalina.core.StandardContext.start(StandardContext.java:5193)
> at com.sun.enterprise.web.WebModule.start(WebModule.java:499)
> at
> org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:928)
> at
> org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:912)
> at
> org.apache.catalina.core.StandardHost.addChild(StandardHost.java:694)
> at
> com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1933)
> at
> com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1605)
> at com.sun.enterprise.web.WebApplication.start(WebApplication.java:90)
> at org.glassfish.internal.data.EngineRef.start(EngineRef.java:126)
> at org.glassfish.internal.data.ModuleInfo.start(ModuleInfo.java:241)
> at
> org.glassfish.internal.data.ApplicationInfo.start(ApplicationInfo.java:236)
> at
> com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:339)
> at
> com.sun.enterprise.v3.server.ApplicationLoaderService.processApplication(ApplicationLoaderService.java:340)
> at
> com.sun.enterprise.v3.server.ApplicationLoaderService.postConstruct(ApplicationLoaderService.java:163)
> at
> com.sun.hk2.component.AbstractWombImpl.inject(AbstractWombImpl.java:174)
> at com.sun.hk2.component.ConstructorWomb$1.run(ConstructorWomb.java:87)
> at java.security.AccessController.doPrivileged(Native Method)
> at
> com.sun.hk2.component.ConstructorWomb.initialize(ConstructorWomb.java:84)
> at com.sun.hk2.component.AbstractWombImpl.get(AbstractWombImpl.java:77)
> at
> com.sun.hk2.component.SingletonInhabitant.get(SingletonInhabitant.java:58)
> at com.sun.hk2.component.LazyInhabitant.get(LazyInhabitant.java:107)
> at
> com.sun.hk2.component.AbstractInhabitantImpl.get(AbstractInhabitantImpl.java:60)
> at
> com.sun.enterprise.v3.server.AppServerStartup.run(AppServerStartup.java:236)
> at
> com.sun.enterprise.v3.server.AppServerStartup.start(AppServerStartup.java:128)
> at com.sun.enterprise.module.bootstrap.Main.launch(Main.java:457)
> at com.sun.enterprise.module.bootstrap.Main.launch(Main.java:401)
> at org.jvnet.hk2.osgiadapter.HK2Main.start(HK2Main.java:125)
> at
> org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:640)
> at org.apache.felix.framework.Felix.activateBundle(Felix.java:1700)
> at org.apache.felix.framework.Felix.startBundle(Felix.java:1622)
> at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:915)
> at org.jvnet.hk2.osgimain.Main.start(Main.java:140)
> at
> org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:640)
> at org.apache.felix.framework.Felix.activateBundle(Felix.java:1700)
> at org.apache.felix.framework.Felix.startBundle(Felix.java:1622)
> at
> org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1077)
> at
> org.apache.felix.framework.StartLevelImpl.run(StartLevelImpl.java:264)
> at java.lang.Thread.run(Thread.java:637)
> Caused by: java.lang.NullPointerException
> at
> org.stripesstuff.stripersist.Stripersist.getEntityManagerFactory(Stripersist.java:401)
> at
> org.stripesstuff.stripersist.Stripersist.getEntityManager(Stripersist.java:495)
> at
> org.lightagents.ws.dao.impl.stripersist.BaseDaoImpl.load(BaseDaoImpl.java:70)
> at
> org.lightagents.ws.dao.impl.stripersist.ModalityDaoImpl.load(ModalityDaoImpl.java:50001)
> at
> org.lightagents.ws.dao.impl.stripersist.BaseDaoImpl.load(BaseDaoImpl.java:39)
> at
> org.lightagents.ws.dao.impl.stripersist.ModalityDaoImpl.load(ModalityDaoImpl.java:50001)
> at
> org.lightagents.ws.dao.impl.stripersist.ModalityDaoImpl.findAll(ModalityDaoImpl.java:20)
> at
> org.lightagents.ws.service.impl.ModalityServiceImpl.initService(ModalityServiceImpl.java:35)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at
> org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:297)
> at
> org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:250)
> at
> org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:144)
> ... 57 more
> |#]
>
>
> Freddy Daoud wrote:
>
> Hi Nikolaos,
>
>
>
> I guess what I need is a WAY to perform POST initialization on this
> Spring managed Service object. If I was dealing with an ActionBean then
> an @AFTER on a particular life cycle event I imagine would do the trick
> but this is not an Action Bean.
>
>
> You are right, it is a bad idea to do any work in the constructor in
> this case; you need to let Spring finish its wiring.
>
> Indeed there is a standard annotation for doing post-initialization
> work:
> javax.annotation.PostConstruct. Spring recognizes this annotation when
> its
> annotation post processor is registered.[1]
>
> So all you need is something like:
>
> @PostConstruct
> public void init() {
> // do initialization work
> // the name of the method can be something else than 'init'
> }
>
> I use this mechanism a lot and it works well.
> Hope that helps.
>
> Cheers,
> Freddy
>
> [1]:http://static.springsource.org/spring/docs/2.5.x/reference/beans.html#beans-postconstruct-and-predestroy-annotations
>
> ------------------------------
>
>
>
>
> ------------------------------------------------------------------------------
>
>
> _______________________________________________
> Stripes-users mailing list
> Stripes-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/stripes-users
>
>
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