how do I get a DLQ message ?

[everjava]

I`m using <jms-jca-provider ../> and after to try 3 times for example and the error continue, the message is stored as DLQ message. How could I get the messages stored there ? Has ESB some api to do that ?

A second question, is possible do the redelivery after a defined time ? Eg, after the esb get a message and get an exception in my action pipeline, it will try redelivery because i`m using jms-jca-provider, instead the message be processed after the exception, wait 2 minutes for example, and then try redelivery. I dont know if i was very clear ...

[h.wolffenbuttel]

hi Everson,

Take a look at thread http://community.jboss.org/thread/167952 , it answers your second question.

Regards,

Hans

[scottdawson]

Everson,

Regarding your first question, see this forum thread: http://community.jboss.org/message/517185#517185

John Pount attached a JSP that can retrieve DLQ messages (or other message types) from the message store.

Regards,

Scott

[everjava]

Hi hans and scott, your answers helped me .. thanks

about my second question I saw the thread, but I didn't try yet...

about my first one, it works. But I get some doubt about

1-dlq message stored on database

2-dlq message stored on jboss queue

I would like to access the messages stored on queue/DQL, to try redelivery case necessary

and for auditing(in this case transform the message to an object again. In my message I have an

object like Person)

Since I'm using jms-jca-provider every error in my action pipeline the message

is sent to queue/DLQ on jboss to store a lost message

My first steps to do that were:

QueueConnectionFactory queueConnectionFactory = (QueueConnectionFactory) iniCtx.lookup("ConnectionFactory");

connection = queueConnectionFactory.createQueueConnection();

queue = (Queue) iniCtx.lookup("/queue/DLQ");

...

MessageConsumer consumer =  session.createConsumer(queue);

ObjectMessageProxy omp = (ObjectMessageProxy) consumer.receive(2000);

System.out.println( omp.getMessage());

But the console show me: JBossMessage[21442936538595343]:PERSISTENT

How can I convert it ?

I didn't understand very well where I can use dlq message store on database, like:

<action name="PersistAction" class="org.jboss.soa.esb.actions.MessagePersister">

    <property name="classification" value="DLQ"/>

    <property name="message-store-class"

        value="org.jboss.internal.soa.esb.persistence.format.db.DBMessageStoreImpl"/>

</action>

If I have code like below, the PersistAction always is stored. How can I use PersistAction just when error happen ?

<action name="a1"    class="Action1"">

<action name="a2"    class="Action2">

<action name="a3"    class="Action3">

<action name="PersistAction" class="org.jboss.soa.esb.actions.MessagePersister">

With DLQ message stored on database, I can convert the message to my object:

DBMessageStoreImpl storeImpl = new DBMessageStoreImpl();

Map<URI, Message> map = storeImpl.getAllMessages("DLQ");

Person person = null;

for (org.jboss.soa.esb.message.Message msg : map.values()) {

if (msg.getBody().get() != null){

person = new Person();

person = (Person) msg.getBody().get();// it works

}

I think is more easily do what I want by dlq message stored on database

[everjava]

Well,  can forget the message above ....

I'm using the approach below to save a message using DBMessageStoreImpl,

when I get err save the message as DLQ classification and ok as STORE.

But I saved as RDLVR, and after couple minutes the classification was change to DLQ.

Why did it happen ?

<action name="notify" class="org.jboss.soa.esb.actions.Notifier">

<property name="destinations">

<NotificationList type="err">

<target class="package.MyNotifyClass" ...

<NotificationList type="ok">

<target class="package.MyNotifyClass" ...