I have peculiar issue with CDI. Application deployed on glassFish 3.0.1
The scenario is as below
Maven proj1 :: My jax-rs code has EJB(through interface) injection along with Qualifier
class A_jaxrs{
#Inject #Demo
DemoManager demoManager;
}
Maven proj2 :: All the interface are defined in project2 along with the qualifier
class interface DemoManager{
}
#Qualifier
public #interface Demo{
}
Maven proj3 :: Stateless bean is defined
#Demo
#Stateless
class DemoManagerBean implements DemoManager{
#Override
public void demoString() {
System.out.println("Year 2014");
}
}
Empty beans.xml is included in all the projects
All the projects(as jars) are packaged within the ear
But my ear deployment fails with injection failure.....
Netbeans also reports Unsatisfied dependency error at injection point
Any help ? However the same scenario works with #Ejb("...")
At first, why do you use so old version of Glassfish? It has a lot of bugs. Couldn't you use more recent one? Like 4.0?
Secondly your qualifier annotation is wrong, it should be:
#Qualifier
#Retention(RetentionPolicy.RUNTIME)
#Target({ ElementType.FIELD, ElementType.METHOD, ElementType.PARAMETER })
public #interface Demo{
}
Related
I have an application that works fine runing Omnifaces 2.5.1 Mojarra under Wildfly 10. This application have a multiple WARs but only one uses Omnifaces.
Today I tried to add Omnifaces to use in a second WAR inside the EAR. And I'm getting this exception:
Exception 0 :
org.jboss.weld.exceptions.DeploymentException: WELD-001408: Unsatisfied dependencies for type Long with qualifiers #Param
at injection point [BackedAnnotatedField] #Inject #Param private siscom.web.jsf.controller.PartnerDetailsController.id
at siscom.web.jsf.controller.PartnerDetailsController.id(PartnerDetailsController.java:0)
WELD-001475: The following beans match by type, but none have matching qualifiers:
- Producer Method [Long] with qualifiers [#BatchProperty #Any] declared as [[UnbackedAnnotatedMethod] #Produces #BatchProperty public org.jberet.creation.BatchBeanProducer.getLong(InjectionPoint)]
at org.jboss.weld.bootstrap.Validator.validateInjectionPointForDeploymentProblems(Validator.java:359)
at org.jboss.weld.bootstrap.Validator.validateInjectionPoint(Validator.java:281)
at org.jboss.weld.bootstrap.Validator.validateGeneralBean(Validator.java:134)
at org.jboss.weld.bootstrap.Validator.validateRIBean(Validator.java:155)
at org.jboss.weld.bootstrap.Validator.validateBean(Validator.java:518)
at org.jboss.weld.bootstrap.ConcurrentValidator$1.doWork(ConcurrentValidator.java:68)
at org.jboss.weld.bootstrap.ConcurrentValidator$1.doWork(ConcurrentValidator.java:66)
at org.jboss.weld.executor.IterativeWorkerTaskFactory$1.call(IterativeWorkerTaskFactory.java:63)
at org.jboss.weld.executor.IterativeWorkerTaskFactory$1.call(IterativeWorkerTaskFactory.java:56)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
My controller is:
#ViewScoped #Named
public class PartnerDetailsController implements Serializable {
#Inject
#Param
private Long id;
}
Note: Sometimes work fine, sometimes doesn't. When I restart the application works. If I restart again, not works.
You can't use #Param with multiple WARs containing Omnifaces packaged in an EAR. This is an interaction bug between CDI and OF.
Related blog post: http://balusc.omnifaces.org/2013/10/cdi-behaved-unexpectedly-in-ear-so.html
I have not tested it lately if it works in the latest version.
I want to get bean from producer method in order to read its properties. In some scenarios the bean is a EJB Singleton bean.
I've simplified my code to focus on the problem.
My simple qualifier:
#Qualifier
#Retention(RUNTIME)
#Target({TYPE, METHOD, FIELD, PARAMETER})
public #interface InjectMe {}
Simple producer:
#Dependent
public class SimpleProducer {
#Produces
#InjectMe
public String getInjectMe(InjectionPoint ip) {
// ip.getBean() returns null for some reason
return "ip=" + ip + ", bean=" + ip.getBean();
}
}
EJB (Singleton):
#Singleton
#Startup
public class SimpleSingleton {
#Inject
#InjectMe
private String injectMe;
#PostConstruct
public void init() {
System.out.println(injectMe);
}
}
Console output:
Info: ip=[BackedAnnotatedField] #Inject #InjectMe private com.test.ejb.SimpleSingleton.injectMe, bean=null
When I change Singleton bean to CDI bean everything works fine (ip.getBean() returns not null). It also worked in Java EE 6 even with Singleton bean but it does not in Java EE 7. I am using Glassfish 4 application server.
Is this behavior specified somewhere?
Using
injectionPoint.getMember().getDeclaringClass()
works for me in WildFly 10.1.0 and I also quickly tested it in Payara Server 4.1.1.162 #badassfish (build 116). I also did a test on brand new Payara Server 4.1.1.164 #badassfish (build 28). However,I had to change the scope of the producer bean to #ApplicationScoped. Default scope did not work. In my case, it even makes sense :)
The
injectionPoint.getBean().getBeanClass()
method worked for me in the old Payara, but not in the new WildFly 10.1.0.Final and new Payara Server 4.1.1.164 #badassfish (build 28).
If you have a look at Payara, the current new version 164 contains Weld 2.4.0.Final and WildFly 10.1.0Final uses version 2.3.5.Final. In both versions, the classical code does not work !
The conclusion is, on older CDI implementations (Weld), it works. In some newer Weld (introduced in Payara 161), the behavior changed. I do not know if this is intentional or not.
However, the solution is to use
injectionPoint.getMember().getDeclaringClass()
and annotate the producer bean with
#javax.enterprise.context.ApplicationScoped
annotation.
I've a Groovy project where I use RESTEasy with Weld and deploy to embedded Jetty. What I can't seem to get working is bean validation. RESTEasy documentation says that adding resteasy-validator-provider-11 along with hibernate validator dependencies (hibernate-validator, hibernate-validator-cdi, javax.el-api, javax.el) is enough. But the bean validation is simply ignored by RESTEasy. I curiously also get the following message in the logs:
plugins.validation.ValidatorContextResolver - Unable to find CDI supporting ValidatorFactory. Using default ValidatorFactory
Based on the suggestions on [this][1] post, I tried registering Hibernate InjectingConstraintValidatorFactory in META-INF/validation.xml but it depends on a BeanManager being injected and blows up at runtime.
The code can be found here https://github.com/abhijitsarkar/groovy/tree/master/movie-manager/movie-manager-web
A log gist is here: https://gist.github.com/anonymous/8947319
I've tried everything under the sun without any success. Pls help.
To do this without EE, I believe you'll need to fork the existing InjectingConstraintValidatorFactory but instead of using injection of the bean manager, use the CDI 1.1 class CDI to get a reference to the bean manager, e.g. CDI.current().getBeanManager(). http://docs.jboss.org/cdi/api/1.1/javax/enterprise/inject/spi/CDI.html
You do need to be on CDI 1.1 to do this (so Weld 2+, 2.1.1 is current I believe). Here's an example impl, based on: https://github.com/hibernate/hibernate-validator/blob/master/cdi/src/main/java/org/hibernate/validator/internal/cdi/InjectingConstraintValidatorFactory.java
public class InjectingConstraintValidatorFactory implements ConstraintValidatorFactory {
// TODO look for something with better performance (HF)
private final Map<Object, DestructibleBeanInstance<?>> constraintValidatorMap =
Collections.synchronizedMap( new IdentityHashMap<Object, DestructibleBeanInstance<?>>() );
private final BeanManager beanManager;
public InjectingConstraintValidatorFactory() {
this.beanManager = CDI.current().getBeanManager();
Contracts.assertNotNull( this.beanManager, "The BeanManager cannot be null" );
}
#Override
public <T extends ConstraintValidator<?, ?>> T getInstance(Class<T> key) {
DestructibleBeanInstance<T> destructibleBeanInstance = new DestructibleBeanInstance<T>( beanManager, key );
constraintValidatorMap.put( destructibleBeanInstance.getInstance(), destructibleBeanInstance );
return destructibleBeanInstance.getInstance();
}
#Override
public void releaseInstance(ConstraintValidator<?, ?> instance) {
DestructibleBeanInstance<?> destructibleBeanInstance = constraintValidatorMap.remove( instance );
destructibleBeanInstance.destroy();
}
}
I finally fixed this. Turns out, a validation.xml is not really required, resteasy-cdi module does a fine job of registering the BeanManager. What I was missing and not clearly documented anywhere, is that if an annotation is placed on a method, the validation engine just "decides" what should be validated. I placed a #NotNull on a method and it was validating the return type, not the parameters. One can use validationAppliesTo element in some cases but #NotNull doesn't have it. When I moved it from the method to the parameter, it started working.
Now I ran across what I believe is a Weld bug but I'll post that question separately.
I'm trying to create my first project EJB3 with JSF 2.0 & Eclipse.
My first project is roughly a Hello World Project. I have an EJB interface, a bean that implements the methods and JSF ManagedBean with relative file .xhtml.
My problem is that I can not test the project. All files listed above are under the folder ejbModule, in a package, with the exception of the file. Xhtml which is in the META-INF folder. How can I test it?
I am sure that this configuration is not correct. How can I integrate the two projects EJB and JSF. I have to create them separately and then link them?
package it.test.disco.core;
import javax.ejb.Remote;
#Remote
public interface MusicService {
public String getDisco();
}
Class that implements interface:
package it.test.disco.core;
import javax.ejb.Stateless;
/**
* Session Bean implementation class MusicServiceBean
*/
#Stateless
public class MusicServiceBean implements MusicService {
/**
* Default constructor.
*/
public MusicServiceBean() {}
public String getDisco(){
return "The Knife DISCO DEL MESE";
}
}
Managed Bean JSF 2.0
package it.test.disco.core;
import javax.ejb.EJB;
import javax.faces.bean.ManagedBean;
#ManagedBean
public class DiscoStamp {
#EJB
private MusicService musicService;
public DiscoStamp() {
// TODO Auto-generated constructor stub
}
public String getMessage() {
return musicService.getDisco();
}
and the file .xhtml
<h:outputLabel value="NEWS DEL GIORNO: "/>
<h:outputText value="#{DiscoStamp.message}"/>
Well You need to Create One Enterprice Application using any IDE like netbeans/EClipse
where you can add Your XTML page to pages folder or JSp folder inside WEB-INF.
you can have source Folder where you can add ur EJB classess as well Action/ManagedBean.
And then You can have configure face configuration xml file and also web.xml and then you can use build your ear,
and now you can test/check your first code.
For some reasons, I would like to deploy my application as two separate artifacts: Users-ejb.jar and Users-war.war, not packaged in the same ear (but still, deployed in the same JBoss AS 7.1 instance). In the Users-war.war I have a backing bean (annotated as a JSF managed bean) where I wish to inject an EJB3 packaged in the Users-ejb.jar. The simple #EJB injection that worked when everything was packaged in a single ear no longer works when the Users-ejb.jar and the Users-war.war are deployed seperately.
A narrowed-down simplified example of my setup follows:
EJB3 bean
import javax.ejb.*;
(...)
#Stateless(name="userFacade")
#Local(IUserFacadeLocal.class)
#Remote(IUserFacadeRemote.class)
public class UserFacade extends AbstractFacade<User> implements IUserFacadeLocal, IUserFacadeRemote {
Backing bean
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import javax.ejb.EJB;
import entities.User;
import facades.IUserFacadeRemote;
import facades.IUserFacadeLocal;
#ManagedBean(name="indexBackingBean")
#SessionScoped
public class IndexBackingBean implements Serializable {
#EJB(beanName="userFacade")
private IUserFacadeLocal userFacade;
I've tried various combinations like declaring the type of the EJB3 bean in the backing bean as IUserFacadeRemote (as opposed to IUserFacadeLocal) but they all fail with the same exception when the Users-war.war module is deployed:
Caused by: org.jboss.as.server.deployment.DeploymentUnitProcessingException:
JBAS014543: No EJB found with interface of type 'facades.IUserFacadeLocal' and
name 'userFacade' for binding controllers.IndexBackingBean/userFacade
The Users-ejb.jar is deployed to JBoss AS 7.1 without any complains but when the Users-war.war is deployed, JBoss complains that it can't find the bean he's supposed to inject.
However, I am able to obtain a reference to the EJB3 bean using JNDI using:
String jndiName = "java:global/Users-ejb/userFacade!facades.IUserFacadeRemote";
this.userFacade = (IUserFacadeRemote) new InitialContext().lookup(jndiName);
Despite that, the #EJB injection doesn't seem to work.
UPDATE:
I followed the suggestion give below by Tom Anderson and the injection that does work is the:
#EJB(mappedName = "java:global/Users-ejb/userFacade!facades.IUserFacadeRemote")
which if I understand correctly uses the vendor-specific mappedName attribute. I couldn't get the injection to work in a vendor-independent way.
I wish i understood this area of the EE spec well enough to give you a definitive answer, but i don't.
The JBoss EJB documentation has this to say:
The #EJB annotation also has a mappedName() attribute. The specification leaves this a vendor specific metadata, but JBoss recognizes mappedName() as the global JNDI name of the EJB you are referencing. If you have specified a mappedName(), then all other attributes are ignored and this global JNDI name is used for binding.
If you specify #EJB with no attributes defined [...] Then the following rules apply:
The EJB jar of the referencing bean is searched for an EJB with the interface, used in for #EJB injection. If there are more than one EJB that publishes same business interface, then an exception is thrown. If there is only one bean with that interface then that one is used.
Search the EAR for EJBs that publish that interface. If there are duplicates, then an exception is thrown. Otherwise the matching bean is returned.
Search globally in JBoss for an EJB of that interface. Again, if duplicates, an exception is thrown.
#EJB.beanName() corresponds to . If the beanName() is defined, then use the same algorithm as #EJB with no attributes defined except use the beanName() as a key in the search. An exception to this rule is if you use the ejb-link '#' syntax. The '#' syntax allows you to put a relative path to a jar in the EAR where the EJB you are referencing lives. See spec for more details
The "Search globally in JBoss for an EJB of that interface" certainly suggests that an injection like the one you wrote should work. Indeed, that it should work without the beanName. However, my suspicion is that from the point of view of a component in the WAR, a component in the EJB-JAR is remote, and therefore you will need to use the remote interface.
So, the first thing i'd try is:
#EJB
private IUserFacadeRemote userFacade;
Without a beanName, in case that's making trouble. It sounds like you've tried that, though.
If the normal approach to injection doesn't work, i might fall back to trying an injection via a mappedName, which in JBoss is a global JNDI name. So:
#EJB(mappedName = "java:global/Users-ejb/userFacade!facades.IUserFacadeRemote")
private IUserFacadeRemote userFacade;
This is obviously rather ugly.
Anyway, good luck!
EDIT: Something else you could try is to use a qualified relative beanName which explicitly names the EJB-JAR:
#EJB(beanName = "Users-ejb.jar#userFacade")
private IUserFacadeRemote userFacade;
Because the WAR and EJB-JAR are not packaged in an EAR, this might need to be:
#EJB(beanName = "../Users-ejb.jar#userFacade")
private IUserFacadeRemote userFacade;
But by this point i'm just guessing.
EDIT STRIKES BACK: We may have overlooked something very simple. The lookup attribute of the #EJB annotation lets you specify "A portable lookup string containing the JNDI name for the target EJB component", hence:
#EJB(lookup = "java:global/Users-ejb/userFacade!facades.IUserFacadeRemote")
private IUserFacadeRemote userFacade;
Might work. This is essentially a portable version of the JBoss-specific use of mappedName.
I have been testing this scenario in Wildfly and found that it will work with local interfaces as described above if there is a jboss-deployment-structure.xml inside of the war pointing to the ejb. Otherwise a ClassNotFoundException is thrown as the war above can't really "know" about the ejbs classes due to the modular class loading in JBoss and Wildfly. The content of the file should be:
<jboss-deployment-structure>
<deployment>
<dependencies>
<module name="deployment.Users-ejb.jar" />
</dependencies>
</deployment>
</jboss-deployment-structure>
And then the JSF bean can use:
#EJB(lookup = "java:global/Users-ejb/userFacade!facades.IUserFacadeRemote")
private IUserFacadeLocal userFacade;
As #TomAnderson said, the standard way to achieve cross-artifact lookup is the lookup attribute of the #EJB annotation.
Here's a complete Maven project to illustrate how this works:
https://github.com/mrts/remote-ejb-injection
You don't need to use the name attribute of the EJB class, providing the class name in lookup is sufficient. Quoting from the example above:
// in API JAR
#Remote
public interface HelloService { ... }
// in EJB JAR
#Stateless
public class HelloServiceImpl implements HelloService { ... }
// in WAR
#WebServlet("/hello")
public class HelloServlet extends HttpServlet {
#EJB(lookup = "java:global/service-ear/service-ejb-impl/HelloServiceImpl!" +
"ee.mrts.service.HelloService")
private HelloService helloService;
...
}
(So, using HelloServiceImpl directly in lookup Just Works™.)