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From Quinn Stevenson <qu...@pronoia-solutions.com>
Subject Re: Invoking Dynamic OSGi Blueprint services from a Java RouteBuilder
Date Fri, 05 Feb 2016 21:20:37 GMT
Brad - 

Please feel free to associate the issues - I don’t know exactly how that’s supposed to
be done (I’m a little new to the Apache JIRA process).

- Quinn


> On Feb 5, 2016, at 2:10 PM, Brad Johnson <brad.johnson@mediadriver.com> wrote:
> 
> Quinn,
> 
> If you wouldn't mind putting a reference in there as a "may be related to"
> the other issue that would be great.  There shouldn't be a reason in an
> OSGi environment for any classloaders grabbing concrete implementations
> from other bundles and the current Camel classloader mechanics explicitly
> use that reach around when they can't find what they are looking for. It
> may be a different bug but ultimately that loophole has to be closed.
> 
> Brad
> 
> On Fri, Feb 5, 2016 at 3:01 PM, Quinn Stevenson <quinn@pronoia-solutions.com
>> wrote:
> 
>> OK - I’ve created an new JIRA issue describing what I’m seeing.
>> https://issues.apache.org/jira/browse/CAMEL-9570 <
>> https://issues.apache.org/jira/browse/CAMEL-9570>
>> 
>> I’ll extract some samples from my projects and add them to the ticket
>> shortly.
>> 
>> 
>>> On Feb 3, 2016, at 12:05 AM, Christian Schneider <
>> chris@die-schneider.net> wrote:
>>> 
>>> I would use a new issue that just explains what happens without trying to
>>> interpret. We do not yet know what really happens but I hope we can find
>>> out.
>>> 
>>> Christian
>>> 
>>> 2016-02-03 3:40 GMT+01:00 Quinn Stevenson <quinn@pronoia-solutions.com>:
>>> 
>>>> I would expect the CamelContext to keep trying to run as well, but I
>>>> expected it to hit the call to the OSGi service, block, and then timeout
>>>> and throw a ServiceUnavailableException.  But what I’m seeing is the
>> call
>>>> to the OSGi service is completing (it’s basically and echo service right
>>>> now), and continues to complete.  My test route is driven by a timer,
>> and
>>>> it will continue to log calls to the OSGi service even when the bundle
>>>> providing the service has been stopped.
>>>> 
>>>> I checked and made sure I didn’t have any other bundles providing the
>>>> service.
>>>> 
>>>> The really strange part to me is just injecting what should be the
>> service
>>>> proxy into the RouteBuilder results in a route that isn’t using
>> Blueprint
>>>> service proxies.  I’ve changed the route to use the bean component,
>> which
>>>> works as I’d expect as long as I don’t inject the bean into the route
>>>> builder.
>>>> 
>>>> I was going to put some samples in the JIRA issue that was created for
>>>> this - is that still the right place?  Or do we need a different JIRA
>> issue?
>>>> 
>>>>> On Feb 2, 2016, at 3:15 PM, Christian Schneider <
>> chris@die-schneider.net>
>>>> wrote:
>>>>> 
>>>>> On 02.02.2016 23:08, Quinn Stevenson wrote:
>>>>>> Christian -
>>>>>> 
>>>>>> I don’t know about a class loader issue, but I do know when I run
the
>>>> route configured as you have it below, I’m not getting a proxy to the
>>>> service.  I know this because if I stop the bundle containing the OSGi
>>>> service, the Camel context keeps running - I don’t get a
>>>> ServiceUnavailableException after the timeout.  In fact, it keeps using
>>>> whatever is injected into the RouteBuilder.
>>>>>> 
>>>>>> I think that’s where the class loader thing came from - it appear
to
>> be
>>>> using the implementation of the service directly - not via a Blueprint
>>>> proxy.
>>>>>> 
>>>>>> 
>>>>> It is normal that the camel context keeps running as blueprint uses
>>>> service damping. So the proxy should remain the same when the service
>> goes
>>>> away or changes.
>>>>> I would expect the service call to block and return
>>>> ServiceUnavailableException after the blueprint service timeout though
>> in
>>>> case there is no service.
>>>>> 
>>>>> Sounds quite strange.
>>>>> 
>>>>> Can you check in karaf using the service:list command that there is
>>>> really no Echo service running anymore?
>>>>> 
>>>>> Christian
>>>>> 
>>>>> --
>>>>> Christian Schneider
>>>>> http://www.liquid-reality.de
>>>>> 
>>>>> Open Source Architect
>>>>> http://www.talend.com
>>>>> 
>>>> 
>>>> 
>>> 
>>> 
>>> --
>>> --
>>> Christian Schneider
>>> http://www.liquid-reality.de
>>> <
>> https://owa.talend.com/owa/redir.aspx?C=3aa4083e0c744ae1ba52bd062c5a7e46&URL=http%3a%2f%2fwww.liquid-reality.de
>>> 
>>> 
>>> Open Source Architect
>>> http://www.talend.com
>>> <
>> https://owa.talend.com/owa/redir.aspx?C=3aa4083e0c744ae1ba52bd062c5a7e46&URL=http%3a%2f%2fwww.talend.com
>>> 
>> 
>> 


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