Re: How do I *send* JMS messages from an MDB?
Thanks for the feedback! - Romain Le 17 avr. 2012 18:31, "Bjorn Danielsson" a écrit : > Problem solved! > > Thanks AndyG, this did the trick. I compiled a fresh ActiveMQ > snapshot (r1327126) and replaced the files from your list, and > now everything works. Tried with OpenJPA and EclipseLink, both > worked without a glitch. So the bug was in ActiveMQ-5.5.1. > > -- > Björn Danielsson > Cuspy Code AB > > > AndyG wrote: > > These are the required activemq jars: > > > > openejb\lib\activeio-core-3.2-20090713.104929-1.jar > > openejb\lib\activemq-core-5.6-SNAPSHOT.jar > > openejb\lib\activemq-protobuf-1.1.jar > > openejb\lib\activemq-ra-5.6-SNAPSHOT.jar > > openejb\lib\kahadb-5.6-SNAPSHOT.jar > > > > > > -- > > View this message in context: > http://openejb.979440.n4.nabble.com/How-do-I-send-JMS-messages-from-an-MDB-tp4561773p4564896.html > > Sent from the OpenEJB User mailing list archive at Nabble.com. >
Re: How do I *send* JMS messages from an MDB?
Problem solved! Thanks AndyG, this did the trick. I compiled a fresh ActiveMQ snapshot (r1327126) and replaced the files from your list, and now everything works. Tried with OpenJPA and EclipseLink, both worked without a glitch. So the bug was in ActiveMQ-5.5.1. -- Björn Danielsson Cuspy Code AB AndyG wrote: > These are the required activemq jars: > > openejb\lib\activeio-core-3.2-20090713.104929-1.jar > openejb\lib\activemq-core-5.6-SNAPSHOT.jar > openejb\lib\activemq-protobuf-1.1.jar > openejb\lib\activemq-ra-5.6-SNAPSHOT.jar > openejb\lib\kahadb-5.6-SNAPSHOT.jar > > > -- > View this message in context: > http://openejb.979440.n4.nabble.com/How-do-I-send-JMS-messages-from-an-MDB-tp4561773p4564896.html > Sent from the OpenEJB User mailing list archive at Nabble.com.
Re: How do I *send* JMS messages from an MDB?
was more about the integration with openejb. I remember we had some API changes mounths ago. - Romain 2012/4/17 AndyG > > Romain Manni-Bucau wrote > > > > i think pulling activemq-ra should be enough with maven to override the > > version. > > > > @Andy: did you try? > > > > I pull, build and deploy activemq daily snapshot to my local repo, but: > > 5.6-SNAPSHOT > > ...will do the trick. > > > -- > View this message in context: > http://openejb.979440.n4.nabble.com/How-do-I-send-JMS-messages-from-an-MDB-tp4561773p4565102.html > Sent from the OpenEJB User mailing list archive at Nabble.com. >
Re: How do I *send* JMS messages from an MDB?
Romain Manni-Bucau wrote > > i think pulling activemq-ra should be enough with maven to override the > version. > > @Andy: did you try? > I pull, build and deploy activemq daily snapshot to my local repo, but: 5.6-SNAPSHOT ...will do the trick. -- View this message in context: http://openejb.979440.n4.nabble.com/How-do-I-send-JMS-messages-from-an-MDB-tp4561773p4565102.html Sent from the OpenEJB User mailing list archive at Nabble.com.
Re: How do I *send* JMS messages from an MDB?
Bjorn Danielsson wrote
> The EJB then sends out a notification to a JMS topic
>
How is this EJB sending the message?
javax.jms.JMSException: The resource is already being used in transaction
context. - Means exactly that, and it is usually a good sign that there is
some misuse or a concurrency issue at the root.
Access to a shared JMS resource is crossing a transaction/thread boundary
and this will only happen if two or more threads are concurrently accessing
the resource.
Never share a JMS Connection/topic or queue across different threads,
putting them in a Singleton is always a good idea as this allows you to keep
the connection open for the application lifetime. Here is a really dumbed
down example:
@Singleton
SomeClass
private Connection conJms = null;
@Resource(mappedName = "JMSConnectionFactory")
private ConnectionFactory connectionFactory;
@Override
public void sendMessage(final String messge) {
if(null == this.conJms){
this.conJms = getConnectionFactory().createConnection();
//Do some JMS magic, open a queue and or topic etc etc
}
//Send the message here
}
@PreDestroy
public void preDestroy() {
//Cleanup and close this.conJms and any queues and topics etc...
}
Any EJB that wants to send a message must then inject the 'SomeClass'
instance:
@EJB
private SomeClass sc;
this.sc.sendMessage("Hello Tom, Dick and Harry");
--
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Re: How do I *send* JMS messages from an MDB?
i think pulling activemq-ra should be enough with maven to override the version. @Andy: did you try? - Romain 2012/4/17 AndyG > These are the required activemq jars: > > openejb\lib\activeio-core-3.2-20090713.104929-1.jar > openejb\lib\activemq-core-5.6-SNAPSHOT.jar > openejb\lib\activemq-protobuf-1.1.jar > openejb\lib\activemq-ra-5.6-SNAPSHOT.jar > openejb\lib\kahadb-5.6-SNAPSHOT.jar > > > -- > View this message in context: > http://openejb.979440.n4.nabble.com/How-do-I-send-JMS-messages-from-an-MDB-tp4561773p4564896.html > Sent from the OpenEJB User mailing list archive at Nabble.com. >
Re: How do I *send* JMS messages from an MDB?
These are the required activemq jars: openejb\lib\activeio-core-3.2-20090713.104929-1.jar openejb\lib\activemq-core-5.6-SNAPSHOT.jar openejb\lib\activemq-protobuf-1.1.jar openejb\lib\activemq-ra-5.6-SNAPSHOT.jar openejb\lib\kahadb-5.6-SNAPSHOT.jar -- View this message in context: http://openejb.979440.n4.nabble.com/How-do-I-send-JMS-messages-from-an-MDB-tp4561773p4564896.html Sent from the OpenEJB User mailing list archive at Nabble.com.
Re: A resource deployed with an application does not get cleared from naming during undeploy
i'm currently implementing it ;) well, sharing resources accross applications can be a nightmare but sometimes it is what you want. To manage such a case we'll have to find a configuration trick. Probably a system property or property to prevent the undeployment. - Romain 2012/4/17 lazarkirchev > OK, thanks a lot! > But since the resource deployed through the resources.xml is intended to be > container-wide available (and not only locally for an application), then is > it possible that undeploying the resource with the app will break other > application which also uses it (if there is such app)? Or such a scenario > is > unacceptable? Probably that is the reason why currently undeploying the > resource with the app is not implemented? > > Lazar > > -- > View this message in context: > http://openejb.979440.n4.nabble.com/A-resource-deployed-with-an-application-does-not-get-cleared-from-naming-during-undeploy-tp4537630p4564799.html > Sent from the OpenEJB User mailing list archive at Nabble.com. >
Re: A resource deployed with an application does not get cleared from naming during undeploy
OK, thanks a lot! But since the resource deployed through the resources.xml is intended to be container-wide available (and not only locally for an application), then is it possible that undeploying the resource with the app will break other application which also uses it (if there is such app)? Or such a scenario is unacceptable? Probably that is the reason why currently undeploying the resource with the app is not implemented? Lazar -- View this message in context: http://openejb.979440.n4.nabble.com/A-resource-deployed-with-an-application-does-not-get-cleared-from-naming-during-undeploy-tp4537630p4564799.html Sent from the OpenEJB User mailing list archive at Nabble.com.
Re: How do I *send* JMS messages from an MDB?
Hi, i think activemq-ra should be updated too. I don't know if there is API changes between both version but i guess you'll see it soon ;). - Romain 2012/4/17 Bjorn Danielsson > Update > > I can now reproduce the error in a small test program. > All I did was increase the messaging from 2 to 4 messages > and fiddle a bit with the JPA code. The fiddling required > seems to be different depending on whether I use OpenJPA > or EclipseLink. > > I am beginning to suspect that I might be bitten by this > bug, fixed in ActiveMQ 5.6.0: > > https://issues.apache.org/jira/browse/AMQ-3465 > > Now I am itching to try a newer ActiveMQ than the bundled one. > Is this possible? I naively tried replacing the activemq-core > jar but that just gave me "peer did not send his wire format". > > -- > Björn Danielsson > Cuspy Code AB >
Re: How do I *send* JMS messages from an MDB?
Update I can now reproduce the error in a small test program. All I did was increase the messaging from 2 to 4 messages and fiddle a bit with the JPA code. The fiddling required seems to be different depending on whether I use OpenJPA or EclipseLink. I am beginning to suspect that I might be bitten by this bug, fixed in ActiveMQ 5.6.0: https://issues.apache.org/jira/browse/AMQ-3465 Now I am itching to try a newer ActiveMQ than the bundled one. Is this possible? I naively tried replacing the activemq-core jar but that just gave me "peer did not send his wire format". -- Björn Danielsson Cuspy Code AB
Re: A resource deployed with an application does not get cleared from naming during undeploy
Hi, resources.xml or openejb.xml or tomee.xml does the same thing. The difference is the moment when it is done and the classloader used. - Romain 2012/4/17 lazarkirchev > Hi, one more detail here - what is actually the intention of resources.xml? > Does it make the container create the actual physical resources for the > resources described in the xml? Or, does it make the container create > references in the application for the resources specified in the xml file? > > Lazar > > -- > View this message in context: > http://openejb.979440.n4.nabble.com/A-resource-deployed-with-an-application-does-not-get-cleared-from-naming-during-undeploy-tp4537630p4564680.html > Sent from the OpenEJB User mailing list archive at Nabble.com. >
Re: A resource deployed with an application does not get cleared from naming during undeploy
Hi, one more detail here - what is actually the intention of resources.xml? Does it make the container create the actual physical resources for the resources described in the xml? Or, does it make the container create references in the application for the resources specified in the xml file? Lazar -- View this message in context: http://openejb.979440.n4.nabble.com/A-resource-deployed-with-an-application-does-not-get-cleared-from-naming-during-undeploy-tp4537630p4564680.html Sent from the OpenEJB User mailing list archive at Nabble.com.
