Thank you for your feedback Justin. I will be more specific in my
descriptions.
- First, the activeMQ application creates an instance of BrokerService
from BrokerFactory.createBroker(), with a activemq-config.xml for its
argument
- Next, the queues themselves are loaded one at a time by locating their
beans. The beans are wired in the classic spring fashion from
eps.broker.xml. The connected are created with ConnectionFactory and
started with start()
- (I'm perfectly happy to update this to the Artemis configuration
file method instead)
If I understand correctly, I need to replace the references to
activemq-broker-initializer with EmbeddedActiveMQ, which comes from
Artemis. Next, I need to use ConnectionFactory and Queue classes from JMS
to add the message queues to the embedded server I created with
EmbeddedActiveMQ. Is that at least heading in the right direction?
Thanks again for your help,
Michael
On Fri, Jan 6, 2023 at 11:16 AM Justin Bertram <jbert...@apache.org> wrote:
> There's just not enough detail in what you've stated to provide any
> concrete help with your migration.
>
> You said, "...it looks like BrokerService is used throughout the
> application," but you've provided no details about _how_ BrokerService is
> used. Most applications using an embedded broker are pretty straightforward
> when it comes to broker configuration. They typically create a broker
> instance, configure it with a few endpoints (e.g. queues, topics, etc.),
> configure a couple of other parameters, start it, use it, and when the
> application is done it shuts the broker down. Does your application follow
> this basic pattern? Does it configure the broker programmatically or does
> it load configuration files? Does it rely on automatic creation of
> endpoints?
>
> In order to replace BrokerService with EmbeddedActiveMQ we need specific
> details about how BrokerService is being used.
>
> Hope that helps!
>
>
> Justin
>
> On Fri, Jan 6, 2023 at 12:21 PM Michael Brennock <mbrenn...@gmail.com>
> wrote:
>
> > Thanks for the quick reply!
> >
> > For a more specific question, it looks like BrokerService is used
> > throughout the application, as well as the active-mq-initializer bean
> from
> > activeMQ.
> > To clarify, I inherited this project from other developers who are long
> > gone. I started working on this because I briefly worked on a message
> queue
> > system before.
> >
> > On Thu, Jan 5, 2023, 8:41 PM Justin Bertram <jbert...@apache.org> wrote:
> >
> > > EmbeddedActiveMQ is the class you want to use for embedding ActiveMQ
> > > Artemis. The BrokerService is a class from ActiveMQ "Classic". It is
> used
> > > in the ActiveMQ Artemis code-base only for testing purposes. You won't
> > use
> > > it at all when migrating.
> > >
> > > For additional help you'll have to ask more specific questions.
> > >
> > >
> > > Justin
> > >
> > > On Thu, Jan 5, 2023 at 4:45 PM Michael Brennock <mbrenn...@gmail.com>
> > > wrote:
> > >
> > > > Good afternoon,
> > > > I've been tasked to migrate an existing application's message broker
> > from
> > > > ActiveMQ to Artemis. I was wondering if I could get some help
> > > > troubleshooting my solution?
> > > >
> > > > We had some initial success replacing our embedded activeMQ broker
> > with a
> > > > standalone broker that runs outside the application and still uses
> the
> > > > original message queues defined in activeMQ. I tried to follow the
> > > > information in this guide for creating either an EmbeddedActiveMQ or
> a
> > > > BrokerService. Something about the intended design path is unclear to
> > me,
> > > > even after reading the manual (1) and scouring the code from the
> github
> > > > page for answers (2)
> > > >
> > > > Can anyone offer advice on how to migrate from embedded ActiveMQ to
> > > > embedded Artemis? I feel like I missed something important in the
> > > migration
> > > > documentation
> > > >
> > > > (1)
> > > >
> > > >
> > >
> >
> https://activemq.apache.org/components/artemis/documentation/latest/embedding-activemq.html
> > > >
> > > >
> > > > (2)
> https://github.com/apache/activemq-artemis/search?q=brokerService
> > > >
> > >
> >
>
