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From "Gary Tully (JIRA)" <j...@apache.org>
Subject [jira] Created: (AMQ-1895) activemq.xml embedded camel context cannot resolve a broker if port other than default(61616) is used for tcp transport
Date Tue, 19 Aug 2008 10:51:52 GMT
activemq.xml embedded camel context cannot resolve  a broker if port other than default(61616)
is used for tcp transport
------------------------------------------------------------------------------------------------------------------------

                 Key: AMQ-1895
                 URL: https://issues.apache.org/activemq/browse/AMQ-1895
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker
    Affects Versions: 5.1.0
         Environment: all
            Reporter: Gary Tully
            Assignee: Gary Tully
             Fix For: 5.2.0


The camel context defined in acrtivemq.xml  does not specify a camel activeMQComponent (where
a brokerUrl could be specified) and hence false back to the use of the default broker URL
from ActiveMQConnectionFactory. This breaks down when a non default port is specified for
the broker.
The result is the camel context continually retrying to connect to a non existent port.

It may make sense to pull the camel context out of the default activemq.xml altogether but
with it present, it may make sense to have the camel activmqcomponent use a default broker
url that uses the vm transport as the context will always be embedded in a broker.

One issue with the use of vm transport is that the first use of the transport creates an embedded
broker. With the xbean xml, the camel context bean starts before the brokerService so the
result is two brokers.
It would be usefull if the vm transport url allowed an option to wait for a broker to start
so that the camel context can reliably use the vm transport without the possibility of creating
a separate embedded broker.

Something like the following would work:
{code} vm://localhost?waitForStart=10000&create=false {code}
In this way, the camel embedded connection factory would wait up to 10 seconds for the localhost
broker to start and fail with an exception (b/c create=false) in the event that the broker
does not start within that time.
This would be a sensible default url for the activemq camel component in the acrtivemq.xml
such that it is independent of transport options used by the broker.
(The spring depends-on workaround for this ordering dependency only works in a complete spring
context)

{code}
    <bean id="activemq" class="org.apache.activemq.camel.component.ActiveMQComponent" >
        <property name="brokerURL" value="vm://localhost?waitForStart=10000&create=false"
/>
    </bean>
{code}

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