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| Re: possible ways in order BIRT should see Java event handlers [message #759490 is a reply to message #758618] |
Mon, 28 November 2011 19:37   |
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If you are using the 3.7 runtime they only need to be in the classpath.
Jason
On 11/23/2011 5:08 PM, Csaba wrote:
> Hello Guys,
>
> We would like to use BIRT reporting in an OSGi/Equinox based
> application. Report bundles/plugins will come and go at runtime
> dynamically. Reports will use Java event handlers.
> What can I do in order BIRT should see the reports' Java event handlers
> during report generation?
> What is the best way to do this?
> Or what possible ways do I have here?
>
> I know about the solution that sets the jar file on the Resources tab.
>
> Is there any other (dynamic/flexible) solution?
>
> Many thanks,
> Csaba
>
>
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| Re: possible ways in order BIRT should see Java event handlers [message #759697 is a reply to message #759511] |
Tue, 29 November 2011 16:37 |
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This could be a bit tricky. If you are using the 3.7 pojo runtime and
add an event handler to the cp it will be there for the life of the
runtime. If you decide to use the report engine plugins from your
plugin you will need to figure a way of to add the event handler jars to
your plugins cp dynamically. For some tips on this you may want to look
at the 2.6.2 source specifically the ExecutionContext.java class in the
org.eclipse.birt.report.engine.executor package. it has a method called
getApplicationClassLoader that is used to dynamically get at a class
that is added later. The only issue with this approach is that once
added it will be there for the life of the runtime.
Jason
On 11/28/2011 3:44 PM, Csaba wrote:
> Hello Jason,
>
> ok, but the Java event handlers of reports would be contained by bundles
> that may come and go at runtime in our OSGi application (one bundle per
> report).
>
> So the names of those JARs (the bundles themselves actually) wouldn't be
> known in advance, so how can I put such JARs onto BIRT's classpath?
>
> To put it in another way, I need to extend BIRT's classpath dynamically
> or at runtime.
>
> Many thanks, Csaba.
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