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From Felix Meschberger <fmesc...@adobe.com>
Subject Re: No HttpService available
Date Thu, 14 Mar 2013 12:46:30 GMT
Hi

Can you verify the HttpService is available at all in the framework ? (You might try to access
the web console)

If not, you might have an issue to not properly setup the Http Service bridge: This requires
wiring from the servlet which is actually deployed in the servlet container. See [1] and the
linked examples for details.

Regards
Felix

[1] http://felix.apache.org/documentation/subprojects/apache-felix-http-service.html#using-the-servlet-bridge

Am 14.03.2013 um 12:50 schrieb Stephan Schröder:

> Hi,
> 
> i want to write a HelloWorld-Servlet using Felixes HttpServie.
> The setup is to embedd Felix and the HelloWorldServlet in a war-file and deploy this
on Tomcat6.
> 
> The BundleActivator for the HelloWorldServletBundle checks whether a HttpServie is available
a prints out an error message if that's not the case:
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

> 
>     @Override
>     public void start(BundleContext context) throws Exception
>     {
>         ServiceReference sRef = context.getServiceReference(HttpService.class.getName());
>         if (sRef != null)
>         {
>             HttpService service = (HttpService) context.getService(sRef);
>             service.registerServlet(ALIAS, new HelloWorldServlet(), null, null);
>         }else{
>             System.out.println("no HttpService found to register Servlet for "+ALIAS);
>         }
>     }
> <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
> 
> and sadly this is exectly what happens when deploying the war-file on Tomcat6:
> 
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

> Connected to server
> [2013-03-14 12:34:42,775] Artifact felix-bridge:war exploded: Artifact is being deployed,
please wait...
> starting OSGi
> Installing bundle [jndi:/localhost/WEB-INF/systemBundles/org.apache.felix.http.bridge-2.2.0.jar]
> Installing bundle [jndi:/localhost/WEB-INF/systemBundles/org.apache.felix.gogo.runtime_0.10.0.jar]
> Installing bundle [jndi:/localhost/WEB-INF/systemBundles/org.apache.felix.webconsole-3.1.8.jar]
> Installing bundle [jndi:/localhost/WEB-INF/systemBundles/org.apache.felix.http.base-2.2.0.jar]
> Installing bundle [jndi:/localhost/WEB-INF/systemBundles/org.apache.felix.bundlerepository-1.6.6.jar]
> Installing bundle [jndi:/localhost/WEB-INF/systemBundles/org.apache.felix.gogo.shell_0.10.0.jar]
> Installing bundle [jndi:/localhost/WEB-INF/systemBundles/org.apache.felix.http.api-2.2.0.jar]
> Installing bundle [jndi:/localhost/WEB-INF/systemBundles/org.apache.felix.gogo.command_0.12.0.jar]
> Installing bundle [jndi:/localhost/WEB-INF/applicationBundles/HelloWorldServletEmbedded-1.0-SNAPSHOT.jar]
> Starting bundle [org.apache.felix.http.bridge]
> [INFO] Started bridged http service
> Starting bundle [org.apache.felix.gogo.runtime]
> Starting bundle [org.apache.felix.webconsole]
> Starting bundle [org.apache.felix.http.base]
> Starting bundle [org.apache.felix.bundlerepository]
> Starting bundle [org.apache.felix.gogo.shell]
> Starting bundle [org.apache.felix.http.api]
> Starting bundle [org.apache.felix.gogo.command]
> Starting bundle [com.mobenga.HelloWorldServletEmbedded]
> no HttpService found to register Servlet for /hello                    <---no HttpService!
> OSGi startet
> [2013-03-14 12:34:43,176] Artifact felix-bridge:war exploded: Artifact is deployed successfully
> ____________________________
> Welcome to Apache Felix Gogo
> 
> g! Mar 14, 2013 12:34:52 PM org.apache.catalina.startup.HostConfig deployDirectory
> INFO: Deploying web application directory manager
> lb
> START LEVEL 1
>    ID|State      |Level|Name
>     0|Active     |    0|System Bundle (4.0.2)
>     1|Active     |    1|Apache Felix Http Bridge (2.2.0)
>     2|Active     |    1|Apache Felix Gogo Runtime (0.10.0)
>     3|Active     |    1|Apache Felix Web Management Console (3.1.8)
>     4|Active     |    1|Apache Felix Http Base (2.2.0)
>     5|Active     |    1|Apache Felix Bundle Repository (1.6.6)
>     6|Active     |    1|Apache Felix Gogo Shell (0.10.0)
>     7|Active     |    1|Apache Felix Http Api (2.2.0)
>     8|Active     |    1|Apache Felix Gogo Command (0.12.0)
>     9|Active     |    1|HelloWorldServletEmbedded (1.0.0.SNAPSHOT)
> g!
> <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
> 
> Because all bundles are active i assume i forgot some needed bundle or configuration?
> (I assume i don't need an embedded Jetty because this runs on top of Tomcat!?)
> 
> If you need more information here is the whole maven project as a zip:
> https://docs.google.com/file/d/0BwYlZDH_xJugamxJQ2QzaWJULVU/edit?usp=sharing
> 
> Regards,
> Stephan
> 
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> 


--
Felix Meschberger | Principal Scientist | Adobe








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