No Persistence provider for EntityManager named cassandra-pu

[sunrain99]

Hello!
I am using Kundera 2.13 on an dynamic web application to access cassandra database and everything works fine. I created EntityManagerFactory and EntityManager to handle entity bean CRUD.

this.emf = Persistence.createEntityManagerFactory("cassandra-pu");
EntityManager cem=emf.createEntityManager();

However, after I combine separate web components into EAR package, EntityManagerFactory and EntityManager do not work. Each war package inside EAR has its own persistence.xml and EntityManagerFactory, EntityManager Injection. The error message is:

ERROR [com.impetus.kundera.configure.PersistenceUnitConfiguration](default task-5) Unconfigured persistence unit: cassandra-pu please validate with persistence.xml
ERROR [com.impetus.kundera.KunderaPersistence](default task-5) EntityManagerFactory not created, returning null.
ERROR [org.jboss.as.ejb3.invocation](default task-5) JBAS014134: EJB Invocation failed on component TagManagementBean for method public abstract java.util.List com.sial.enotebook.ejb.TagManagementBeanLocal.viewAll(): javax.ejb.EJBException: javax.persistence.PersistenceException: No Persistence provider for EntityManager named cassandra-pu
.....

Please help and any ideas?

Thanks and best regards,

[chhavigangwal]

@sunrain99

Can you share a sample app to help me debug the issue and resolve the same ?

Chhavi

[sunrain99]

@chhavigangwal
Thanks for the taking a look. How can I share with you my app?

[sunrain99]

@chhavigangwal
I create a war project test_1, its persistence.xml is like this. I can deploy test_1.war to jboss server and run the app successfully.
<persistence-unit name="cassandra-pu">
<provider>com.impetus.kundera.KunderaPersistence</provider>
<class>entity.Vendor</class>
<exclude-unlisted-classes>true</exclude-unlisted-classes>
<properties>
<!-- <property name="jboss.as.jpa.managed" value="false" />-->
<property name="kundera.name" value="cassandra" />
<property name="kundera.nodes" value="localhost" />
<property name="kundera.port" value="9160" />
<property name="kundera.keyspace" value="project" />
<property name="kundera.dialect" value="cassandra" />
<property name="kundera.client" value="thrift" />
<property name="kundera.client.lookup.class"
value="com.impetus.client.cassandra.thrift.ThriftClientFactory" />
</properties>
</persistence-unit>

I created another war project test_2, its persistence.xml is like this. I can deploy test_2.war to jboss server and run successfully.
<persistence-unit name="cassandra-pu">
<provider>com.impetus.kundera.KunderaPersistence</provider>
<class>entity.Employee</class>
<class>entity.Project</class>
<exclude-unlisted-classes>true</exclude-unlisted-classes>
<properties>
<!--property name="jboss.as.jpa.managed" value="false" / -->
<property name="kundera.name" value="cassandra" />
<property name="kundera.nodes" value="localhost" />
<property name="kundera.port" value="9160" />
<property name="kundera.keyspace" value="project" />
<property name="kundera.dialect" value="cassandra" />
<property name="kundera.client" value="thrift" />
<property name="kundera.client.lookup.class"
value="com.impetus.client.cassandra.thrift.ThriftClientFactory" />
</properties>
</persistence-unit>

entitymanager is initialized through @CassandraDatabase
@Inject
@CassandraDatabase
EntityManager entityManager;

public KunderaEntityManagerCDI(){
System.out.println("will create the entitymanager factory");
this.emf = Persistence.createEntityManagerFactory("cassandra-pu");
}
@produces @RequestScoped @CassandraDatabase EntityManager getKunderaEntityManager(){

    System.out.println("emf is: " + emf);       
    EntityManager cem=emf.createEntityManager();
    cem.setProperty(CassandraConstants.CQL_VERSION, CassandraConstants.CQL_VERSION_3_0);
    return cem;

}

Then I created EAR project test and include project test_1 and test_2. test.ear can be deployed to jboss server ok but when I open pages, it got the above errors.

[chhavigangwal]

@sunrain99

I am trying to replicate the same scenario at my end, if possible please share your app by creating a repo over github or email it on [email protected]

Chhavi

[sunrain99]

@chhavigangwal
I have send you zipped package to [email protected]. Please check it.
Thanks!

[chhavigangwal]

@sunrain99

Your issue seems to be related to setting classpath in Maifest. Take a look at the relevant thread.

https://groups.google.com/forum/#!msg/kundera-discuss/3-iUJQOShvE/kJihv32IbjYJ

I will have a look into your project and update you on same.

Chhavi

[sunrain99]

@chhavigangwal
Thanks for your suggestion. I tried but still does not work. Can you please advise again? Thank you and appreciate!
What I did is:

1. in pom.xml, add
   <configuration>
   <archive>
   <manifest>
   <addClasspath>true</addClasspath>
   </manifest>
   </archive>
   </configuration>
   so in project1 and project2 war file, manifest list all class path jar files
2. add kundera-core-2.13-SNAPSHOT.jar,kundera-cassandra-2.13-SNAPSHOT.jar,kundera-cassandra-ds-driver-2.13-SNAPSHOT.jar,kundera-cassandra-pelops-2.13-SNAPSHOT.jar,fallback-impl-2.13-SNAPSHOT.jar into project\EarContent\lib folder.

[chhavigangwal]

Mailed you the working version of ear deployment. Please verify and let me know.

Chhavi

[chhavigangwal]

The same deployment works with wildfly 8.1. Closing this one as the same will be resolved with #534 .

Chhavi