Mobicents + SpringFramework

[David Salvador]

Hi guys,

I'm having some problems with Mobicents and spring... and maybe you guys can help me. 

Ok here is the problem: 

I'm integrating Kurento Media Server (i need video support, and MMS still does not have video support) with my Mobicents AS, and i need some "bean injection" in order to get access to their api.  

I know this is not a direct problem of Mobicents, but maybe you guys can help me with Spring

If i do this in a standalone project, it works fine: 

final ClassPathXmlApplicationContext  mediaContext = new ClassPathXmlApplicationContext("kmf-media-config.xml");

MediaPipelineFactory mediaPipelineFactory = mediaContext.getBean(MediaPipelineFactory.class);

but when i run it inside an SBB, like as follows: 

public void setSbbContext(SbbContext context) { 

this.sbbContext = (SbbContextExt) context;

if(tracer==null)

{

tracer = sbbContext.getTracer(KurentoSbb.class.getSimpleName());

}

try {

final Context ctx = (Context) new InitialContext().lookup("java:comp/env");

sipActivityContextInterfaceFactory = (SipActivityContextInterfaceFactory) ctx.lookup("slee/resources/jainsip/1.2/acifactory");

sipProvider = (SleeSipProvider) ctx.lookup("slee/resources/jainsip/1.2/provider");

headerFactory = sipProvider.getHeaderFactory();

messageFactory = sipProvider.getMessageFactory();

addressFactory = sipProvider.getAddressFactory();

final ClassPathXmlApplicationContext  mediaContext = new ClassPathXmlApplicationContext("kmf-media-config.xml");

mediaPipelineFactory = mediaContext.getBean(MediaPipelineFactory.class);;

} catch (Throwable e) {

tracer.severe(e.getMessage());

}

}

i got the following error: 

2014-03-28 14:33:49,701 ERROR [javax.slee.SbbNotification[service=ServiceID[name=adverstisement-service,vendor=org.wit.software,version=1.0],sbb=SbbID[name=KurentoSbb,vendor=org.wit.software,version=1.0]].KurentoSbb] (Timer-24) deu erro

javax.naming.NameNotFoundException: resources not bound

        at org.jnp.server.NamingServer.getBinding(NamingServer.java:771)

        at org.jnp.server.NamingServer.getBinding(NamingServer.java:779)

        at org.jnp.server.NamingServer.getObject(NamingServer.java:785)

        at org.jnp.server.NamingServer.lookup(NamingServer.java:396)

        at org.jnp.server.NamingServer.lookup(NamingServer.java:399)

        at org.jnp.server.NamingServer.lookup(NamingServer.java:399)

        at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:726)

        at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:686)

        at org.wit.software.KurentoSbb.setSbbContext(KurentoSbb.java:57)

        at org.mobicents.slee.runtime.sbb.SbbObjectImpl.<init>(SbbObjectImpl.java:124)

        at org.mobicents.slee.runtime.sbb.SbbObjectPoolFactory.makeObject(SbbObjectPoolFactory.java:146)

        at org.apache.commons.pool.impl.GenericObjectPool.addObject(GenericObjectPool.java:1276)

        at org.apache.commons.pool.impl.GenericObjectPool.ensureMinIdle(GenericObjectPool.java:1254)

        at org.apache.commons.pool.impl.GenericObjectPool.access$100(GenericObjectPool.java:179)

        at org.apache.commons.pool.impl.GenericObjectPool$Evictor.run(GenericObjectPool.java:1346)

        at java.util.TimerThread.mainLoop(Timer.java:534)

        at java.util.TimerThread.run(Timer.java:484)

I have all the dependencies in the pom file... Not really sure what I'm doing wrong. 

Cheers,

David 

[David Salvador]

Soz... i printed here the wrong error: 

The correct error i get is : 

java.lang.NoClassDefFoundError: org/springframework/context/support/ClassPathXmlApplicationContext

        at org.wit.software.KurentoSbb.onServiceStartedEvent(KurentoSbb.java:52)

        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

        at java.lang.reflect.Method.invoke(Method.java:616)

        at org.mobicents.slee.runtime.sbbentity.SbbEntityImpl.invokeEventHandler(SbbEntityImpl.java:481)

        at org.mobicents.slee.runtime.eventrouter.routingtask.EventRoutingTaskImpl.routeQueuedEvent(EventRoutingTaskImpl.java:379)

        at org.mobicents.slee.runtime.eventrouter.routingtask.EventRoutingTaskImpl.run(EventRoutingTaskImpl.java:126)

        at org.mobicents.slee.runtime.eventrouter.EventRouterExecutorImpl$EventRoutingTaskStatsCollector.run(EventRouterExecutorImpl.java:73)

        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)

        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)

        at java.lang.Thread.run(Thread.java:679)

Caused by: java.lang.ClassNotFoundException: org.springframework.context.support.ClassPathXmlApplicationContext

        at java.net.URLClassLoader$1.run(URLClassLoader.java:217)

        at java.security.AccessController.doPrivileged(Native Method)

        at java.net.URLClassLoader.findClass(URLClassLoader.java:205)

        at org.mobicents.slee.container.component.deployment.classloading.URLClassLoaderDomainImpl.findClassLocallyLocked(URLClassLoaderDomainImpl.java:215)

        at org.mobicents.slee.container.component.deployment.classloading.URLClassLoaderDomainImpl.findClass(URLClassLoaderDomainImpl.java:184)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:321)

        at org.mobicents.slee.container.component.deployment.classloading.URLClassLoaderDomainImpl.loadClass(URLClassLoaderDomainImpl.java:154)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:266)

        ... 12 more

Any help would be much apreciated,

David 

[Oliver Jowett]

On 28 March 2014 16:21, David Salvador <djcsa...@gmail.com> wrote:

java.lang.NoClassDefFoundError: org/springframework/context/support/ClassPathXmlApplicationContext

You have a packaging problem - you must make the Spring classes available to your SBB somehow (package it with your SBB, or add a dependency on a library jar that has it, etc)

Once you have that fixed, you may need to explicitly set the classloader that ClassPathXmlApplicationContext uses.

see e.g. https://developer.opencloud.com/forum/posts/list/1182.page#4853 (which is about a slightly different problem, but shows how to use ClassPathXmlApplicationContext with a specified classloader)

Oliver

[Abdul Gafar]

Hi

It's no goad for handle performance (high transaction in  TPS)

//Gafar

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[Jean Deruelle]

If your intention is just to use SIP and HTTP. SIP Servlets may be a better fit and Spring integration will be probably much easier as it uses the standard war packaging

Jean

[David Salvador]

Hi guys,

Jean, yeah i would prefer to use Servlets, but is one of the requirements of my work is to use Jain Slee. 

Olive: 

You have a packaging problem - you must make the Spring classes available to your SBB somehow (package it with your SBB, or add a dependency on a library jar that has it, etc)

I add the dependencies for Kurento, and they have the dependencies for springframework (and they are downloaded when i make mvn clean install), thats why i don't know why i get this error.

Tnks,

David 

[Oliver Jowett]

On 31 March 2014 10:47, David Salvador <djcsa...@gmail.com> wrote:

 

Olive: 

You have a packaging problem - you must make the Spring classes available to your SBB somehow (package it with your SBB, or add a dependency on a library jar that has it, etc)

I add the dependencies for Kurento, and they have the dependencies for springframework (and they are downloaded when i make mvn clean install), thats why i don't know why i get this error.

Merely having the dependencies available at compile/build time doesn't mean that they're packaged correctly for deployment. The NoClassDefFoundError means that they're not available at runtime, for whatever reason.

Are you packaging the Spring framework with your SBB jar, or are you including it via a library-jar reference? Have you confirmed that the classes are actually present in the DU in the place you expect them to be in?

(I do not know how much of this you are delegating to the Maven build - perhaps the transitive dependencies are not being packaged as you expect?)

Oliver

[David Salvador]

Well... to be honest, i did not understood everything you said, (kind of noob in maven and all this technologies)... I'll try to do my best to explain:

the only thing i have is, in the SBB pom.xml:

    <dependency>

      <groupId>com.kurento.kmf</groupId>

      <artifactId>kmf-media-api</artifactId>

      <version>4.1.0</version>

    </dependency>

from the dependency hierarchy at eclipse i can see that this dependency has inside the Spring framework jars... however, i've also tried to add the dependencies to spring myself:

<dependency>

      <groupId>org.springframework</groupId>

      <artifactId>spring-core</artifactId>

      <version>4.0.2.RELEASE</version>

      <scope>compile</scope>

    </dependency>

...

Isn't this supposed to package the Spring Framework with the jar ? 

"Have you confirmed that the classes are actually present in the DU in the place you expect them to be in?" - This is the part i did not understood very well, soz

David

[Oliver Jowett]

The output of the build process will be a deployable unit (DU) jar that you will deploy into the SLEE.

Within that deployable unit is a SBB jar that contains your classes and a deployment descriptor describing the SBB, its events, etc.

That SBB jar also needs to contain any (transitive) dependencies that your classes have, except for things that are provided by the SLEE itself or provided by a dependency declared in your SBB's deployment descriptor.

I'm not familiar enough with Maven to specifically help you with how to achieve that, but it is probably a combination of the right maven packaging plugin plus the right <scope> settings on your dependencies.

(compile scope is probably not sufficient)

Oliver

[David Salvador]

Tnks for the help... I'll try a few things to see if i'm "lucky" 

David