Pascal S. created CAMEL-9177:
--------------------------------
Summary: combination of JPA-Component, loop and wiretap throws
entitymanger cloesd exception
Key: CAMEL-9177
URL: https://issues.apache.org/jira/browse/CAMEL-9177
Project: Camel
Issue Type: Bug
Components: camel-core, camel-jpa
Affects Versions: 2.15.3, 2.15.2
Environment: Camel 2.15.2 with Spring-Boot 1.2.3.RELEASE (with camel
xml dsl)
Reporter: Pascal S.
Hi,
I have a problem regarding a wiretap and the camel-jpa component. I have a
route with an async split through a wiretap. In each route, I use a jpa
producer to persist an entity. The problem is, that the entitymanager was
closed before the async routes can reach the end. The cause is, that the same
entitymanager is used in the async routes. The main route reaches the end and
closes the entitymanager.
E.g. like the following route:
{code}
<route id="mainRoute>
<from uri="direct:restendpoint"/>
...
<to uri="jpa:MyEntity"/>
...
<loop copy="true">
...
<wireTap uri="direct:asyncroute"/>
</loop>
</route>
<route id="asyncRoute">
<from uri="direct:asyncroute"/>
...
<to uri="jpa:MyEntity"/>
...
</route>
{code}
I think a possible fix can be to check that the entitymanager is null or
closed. If null or closed, create a new entitymanager.
{code}
public final class JpaHelper {
...
public static EntityManager getTargetEntityManager(Exchange exchange, ...
...
if (em == null || !em.isOpen()) {
// create a new entity manager
em = entityManagerFactory.createEntityManager();
...
}
}
...
}
{code}
Another solution can be in the wiretap. There where the exchange is copied, the
"CamelEntityManager" property could be removed.
Currently, my quickfix is: At the beginning of the async route I remove the
entitymanager from the exchange.
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