On 9/24/13 16:06 , Fulvio Risso wrote:
I'm currently embedding Jetty in the felix framework, using the
examples provided on the felix website:
http://felix.apache.org/site/apache-felix-framework-launching-and-embedding.html
and
http://felix.apache.org/documentation/subprojects/apache-felix-http-service.html
Basically, I create my own application that embeds Felix (using the
code provided by the first example), then I launch the Jetty bundle
and I try to access to that web server (using the code provided by the
second example).
The Jetty bundle starts correctly, then I get this very strange error
at runtime (java.lang.ClassCastException: ...cannot be cast to) when I
try to use the context to get the HttpService:
===============================================================
BundleContext context= m_fwk.getBundleContext();
ServiceReference sRef = context.getServiceReference(
HttpService.class.getName());
if (sRef != null)
{
HttpService service = (HttpService) context.getService(sRef);
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
HttpContext myHttpContext = new MyHttpContext());
service.registerResources("/static", "/etc/www", myHttpContext);
}
================================================================
When this line is executed, I get this exception:
----------------------------------------------------------------
java.lang.ClassCastException:
org.apache.felix.http.base.internal.service.HttpServiceImpl
cannot be cast to org.osgi.service.http.HttpService
at main.HostApplication.main(HostApplication.java:197)
----------------------------------------------------------------
What I am doing wrong?
fulvio
PS I use javac to compile, and java to execute (no Eclipse, no maven,
etc).
Libraries (both to compile and to exec):
- org.apache.felix.main-4.2.1
- org.apache.felix.http.jetty-2.2.0
OSGI bundles:
- org.apache.felix.http.jetty-2.2.0
- org.apache.felix.gogo.shell-0.10.0
- org.apache.felix.gogo.runtime-0.10.0
- org.apache.felix.gogo.command-0.12.0
You cannot just put the http.jetty bundle on the outside and on the
inside. The framework will get its copy of HttpService from the class
path while the bundle will get it from itself.
You could possibly put the http service package on the outside and have
the system bundle export it. If the http bundle also imports the http
service package, then it will likely get it from the system bundle
rather than itself, then all will be good.
This is described in the examples above, I'm pretty sure. Check out
section "Using Services Provided by Bundles"...
-> richard
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