Configure ActiveMQ broker in grails - grails

Question

Using Jms plugin for grails and add dependencies for ActiveMQ worked perfect. No problems.
Now I want to go beyond and perform some customization and fine tuning to make ActiveMQ behaves as I need, so I need to configure the broker instance.
e.g. I want to use JDBC storage.
How is possible to do that with grails and the vm embedded broker?
I've actually followed the reference documentation for the JMS grails plugin ... I add jms plugin and activemq dependencies and place this on resources:
jmsConnectionFactory(SingleConnectionFactory) {
targetConnectionFactory = { ActiveMQConnectionFactory cf ->
//brokerURL = 'vm://localhost'
brokerURL = 'tcp://localhost:61616?jms.useAsyncSend=true'
}
}
As I've said this is fine ... but I need more tuning here, so I've tried to go adding this in the resources, so I can access the broker to fine tuning:
/* Establish the broker */
amq.broker(useJmx: false, persistent: true) {
amq.transportConnectors() {
amq.transportConnector(uri: "tcp://localhost:61616")
}
}
amqConnectionFactory(ActiveMQConnectionFactory) {
brokerURL = "vm://localhost"
}
jmsConnectionFactory(SingleConnectionFactory) {
targetConnectionFactory = ref(amqConnectionFactory)
}
But I start to have dependency problems like:
2015-03-18 13:44:14 - spring.RuntimeSpringConfigUtilities [RuntimeConfiguration] Unable to load beans from resources.groovy
org.springframework.beans.FatalBeanException: NamespaceHandler class [org.apache.xbean.spring.context.v2.XBeanNamespaceHandler] for namespace [http://activemq.apache.org/schema/core] not found; nested exception is java.lang.ClassNotFoundException: org.apache.xbean.spring.context.v2.XBeanNamespaceHandler
So I start adding dependencies:
compile 'org.apache.activemq:activemq-spring:5.7.0'
compile 'org.springframework:spring-beans:4.1.1.RELEASE'
compile 'org.apache.xbean:xbean-spring:4.1'
But still have problems:
java.lang.NoClassDefFoundError: org/springframework/core/OrderComparator$OrderSourceProvider
At this point I get the feeling that I am doing something wrong since I see too much complexity.
Is there a best way to do this?

Answer 1

In order to be able to configure ActiveMQ you'll need:
Dependencies:
compile 'org.apache.activemq:activemq-core:5.7.0'
compile 'org.apache.activemq:activemq-spring:5.7.0'
compile 'org.springframework:spring-beans:4.0.6.RELEASE'
compile 'org.apache.xbean:xbean-spring:4.1'
Resources.groovy:
xmlns amq:"http://activemq.apache.org/schema/core"
...
/* Establish the broker */
amq.broker(useJmx: false, persistent: true) {
amq.transportConnectors() {
amq.transportConnector(uri: "tcp://localhost:61616")
}
//HERE YOU CAN CONFIGURE BROKER
}
amqConnectionFactory(ActiveMQConnectionFactory) {
brokerURL = "vm://localhost"
}
jmsConnectionFactory(SingleConnectionFactory) {
targetConnectionFactory = ref(amqConnectionFactory)
}

Answer 2

The above answer of Rafael is very useful just a small change you need to do if you are working with Grails 3.2.+ it took me few hrs to figure it out.
Depedencies (add them in build.gradle)
compile 'org.grails.plugins:jms:2.0.0.RC2'
compile 'org.apache.activemq:activemq-core:5.7.0'
compile 'org.apache.activemq:activemq-spring:5.14.5'
compile 'org.apache.xbean:xbean-spring:4.1'
Resources.groovy (should look something like)
import org.apache.activemq.ActiveMQConnectionFactory
import org.springframework.jms.connection.SingleConnectionFactory
beans = {
....
xmlns amq:"http://activemq.apache.org/schema/core"
amq.broker(useJmx: false, persistent: true) {
amq.transportConnectors() {
amq.'transportConnector'(uri: "tcp://localhost:61616")
// optional if you want to do something with mqtt
amq.'transportConnector'(uri:'mqtt://0.0.0.0:61612')
}
}
jmsConnectionFactory(SingleConnectionFactory) {
targetConnectionFactory = { ActiveMQConnectionFactory cf ->
brokerURL = 'vm://localhost'
}
}
...
}