Camel-Hibernate Issue with Blueprint

[sarada.ch]

Hi All,

When using camel-hibernate component with Spring DSL it works fine but I want to use Blueprint with JBoss fuse 6.3 I get error

org.osgi.service.blueprint.container.ComponentDefinitionException: Error setting property: PropertyDescriptor <name: sessionFactory, getter: class org.apacheextras.camel.component.hibernate.HibernateComponent.getSessionFactory(), setter: [class org.apacheextras.camel.component.hibernate.HibernateComponent.setSessionFactory(interface org.hibernate.SessionFactory)]

    at org.apache.aries.blueprint.container.BeanRecipe.setProperty(BeanRecipe.java:939)

    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

    at java.lang.Thread.run(Thread.java:745)

Caused by: java.lang.Exception: Unable to convert value org.springframework.orm.hibernate4.LocalSessionFactoryBean@46797063 to type org.hibernate.SessionFactory

    at org.apache.aries.blueprint.container.AggregateConverter.convert(AggregateConverter.java:184)

for more please find at

Camel-Blueprint Unable to convert value org.springframework.orm.hibernate4.LocalSessionFactoryBean to type org.hibernate…

[grgrzybek]

Hello

Answered on SO, but also here for completeness:

Remember one thing. `org.springframework.orm.hibernate4.LocalSessionFactoryBean` is Spring's _factory bean_ which, when used as `<bean>` gives you a kind of indirection - instead of using the class as bean directly, `getObject()` is called and the returned object is your `<bean>`.

Another thing is that Spring automatically calls `afterPropertiesSet()` for all beans (or factory beans) that implement `InitializingBean`.

So instead of:

    <bean class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"

            id="mysessionFactory">

use:

    <bean id="mysessionFactory" factory-ref="mysessionFactoryFactory"

          factory-method="getObject" init-method="afterPropertiesSet" />

    <bean class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"

            id="mysessionFactoryFactory">

    ...

regards
Grzegorz Grzybek

[sarada.ch]

Hi Grzegorz,

I ran into different exception after the above changes:

org.osgi.service.blueprint.container.ComponentDefinitionException: Unable to instantiate components

    at org.apache.aries.blueprint.container.BlueprintContainerImpl.instantiateEagerComponents(BlueprintContainerImpl.java:686)

    at org.apache.aries.blueprint.container.BlueprintContainerImpl.doRun(BlueprintContainerImpl.java:377)

Caused by: java.lang.NullPointerException

    at org.apache.aries.blueprint.container.BeanRecipe.getInitMethod(BeanRecipe.java:619)

Many Thanks,

Sarada

[grgrzybek]

I'm sorry - I wrote from top of my head without running the example - `afterPropertiesSet` is a method of LocalSessionFactoryBean, so add init-method="afterPropertiesSet" on:

  <bean class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"

            id="mysessionFactoryFactory" init-method="afterPropertiesSet">

regards

Grzegorz Grzybek

[sarada.ch]

Thanks a lot for valuable input.

It worked amazing.

It would be great if camel developers can update the same in the camel-hibernate example for blueprint Apache Camel: Hibernate Example

[grgrzybek]

I'm glad it worked

About updating camel example - you can always send PR to https://github.com/camel-extra/camel-extra/tree/master/examples/camel-example-hibernate.

regards

Grzegorz Grzybek