Camel-JPA with Hibernate

[scottdawson]

Hello,
I'm unable to get the Camel-JPA component working in ServiceMix 5.x. I'm
using Hibernate with a Postgres database. I get a couple of different errors
depending on the configuration. I'm building ServiceMix 5 using the latest
source from Git.

If I use the Spring HibernateJpaVendorAdapter, I get the following error:
org.apache.aries.blueprint.core - 1.1.0 | Unable to start blueprint
container for bundle ...
org.osgi.service.blueprint.container.ComponentDefinitionException: Error
when instantiating bean hibernateJpaAdapter of class class
org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter
...
Caused by: java.lang.NoClassDefFoundError:
org/hibernate/ejb/HibernatePersistence
        at
org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter.<init>(HibernateJpaVendorAdapter.java:57)

This is perplexing because I'm "wrapping" the Hibernate EntityManager
library and I can see the missing class:
> osgi:install -s wrap:mvn:org.hibernate/hibernate-entitymanager/3.6.0.Final
Bundle ID: 187
> osgi:classes 187
wrap_mvn_org.hibernate_hibernate-entitymanager_3.6.0.Final (187)
...
org/hibernate/ejb/HibernatePersistence.class
...

If I remove the JPA Adapter configuration and add this to the
persistence.xml:
<provider>org.hibernate.ejb.HibernatePersistence</provider>
then I get this error:
org.apache.aries.blueprint.core - 1.1.0 | Unable to start blueprint
container for bundle ...
org.osgi.service.blueprint.container.ComponentDefinitionException: Error
setting property: PropertyDescriptor <name: entityManagerFactory, getter:
class
org.springframework.orm.jpa.JpaTransactionManager.getEntityManagerFactory(),
setter: [class
org.springframework.orm.jpa.JpaTransactionManager.setEntityManagerFactory(interface
javax.persistence.EntityManagerFactory)]
...
Caused by: java.lang.Exception: Unable to convert value
org.springframework.orm.jpa.LocalContainerEn
tityManagerFactoryBean@3f129523 to type
javax.persistence.EntityManagerFactory

Here is my current configuration...
Blueprint.xml:
&lt;blueprint xmlns=&quot;http://www.osgi.org/xmlns/blueprint/v1.0.0&quot;
   xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot;
   xsi:schemaLocation=&quot;http://www.osgi.org/xmlns/blueprint/v1.0.0
                       
http://www.osgi.org/xmlns/blueprint/v1.0.0/blueprint.xsd&quot;>

   <bean id="transactionTemplate"
class="org.springframework.transaction.support.TransactionTemplate">
     <property name="transactionManager">
       <bean class="org.springframework.orm.jpa.JpaTransactionManager">
         <property name="entityManagerFactory" ref="entityManagerFactory"/>
       </bean>
     </property>
   </bean>
 
   <bean id="jpaTemplate" class="org.springframework.orm.jpa.JpaTemplate">
     <property name="entityManagerFactory" ref="entityManagerFactory"/>
   </bean>
 
    <bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> 
      <property name="persistenceXmlLocation"
value="classpath*:META-INF/persistence.xml"/>
      <property name="persistenceUnitName" value="isdms" />
      <property name="jpaVendorAdapter" ref="hibernateJpaAdapter" />
    </bean>

    <bean id="hibernateJpaAdapter"
class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
    <property name="showSql" value="true" />
    </bean>
    
   <camelContext xmlns="http://camel.apache.org/schema/blueprint";>
      <route>
         <from
uri="timer://foo?fixedRate=true&amp;period=5000&amp;repeatCount=10"/>
         <from
uri="jpa:com.acme.MyEntity?persistenceUnit=isdms&amp;consumeDelete=false"/>
         <log message="Message body: ${body}"/>
      </route>
   </camelContext>
</blueprint>

Persistence.xml:
<persistence xmlns="http://java.sun.com/xml/ns/persistence";
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; version="1.0">
   <persistence-unit name="isdms" transaction-type="RESOURCE_LOCAL">
      <provider>org.hibernate.ejb.HibernatePersistence</provider>
      <properties>
         
         <property name="hibernate.dialect"
value="org.hibernate.dialect.PostgreSQL82Dialect"/>
         <property name="hibernate.connection.driver_class"
value="org.postgresql.Driver"/>
         <property name="hibernate.connection.url"
value="jdbc:postgresql://..."/>
         <property name="hibernate.connection.username" value="..."/>
         <property name="hibernate.connection.password" value="..."/>
         
         
      </properties>
   </persistence-unit>
</persistence>

Any help would be appreciated.

Thanks,
Scott Dawson




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