topic Re: Problem with HP SDN workshop written by Tomas Kubica in Software Defined Networking

Problem with HP SDN workshop written by Tomas Kubica

sbotkine — Wed, 26 Feb 2014 15:37:06 GMT

Hello,

I've just received the "HP SDN developer workshop" document and have a problem:

I've first generate the sceleton application with:

$ ./gen-sdn-app /Users/admin/Documents/DataSerge/DEVELOPEMENT/HP/sdn-apps/myfirstsdnapp myfirst unil MyFirst "Example HP" "unil-ci" "ma premiere application" myfirst

Then I've import the project to eclispe:

$ mvn eclipse:eclipse

Then I've add the following into the MyFirstManager class:

@Activate

void activate() {

logger.info("MYFIRST: Hey, seems like our app is being activated !");

}

Then I've compile the project (mvn clean install) and installed it on the HP VAN controler without any problem.

After the deployement of the application, I've examinated (like mentioned into the tuto) the Virgo log file to see if my log will be present:

tail -f /opt/sdn/virgo/serviceability/logs/log.log | grep MYFIRST

I have

"[2014-02-26 16:11:28.198] INFO start-signalling-9 org.eclipse.virgo.medic.eventlog.default DE0005I Started plan 'Example HP' version '1.0.0.SNAPSHOT'. "

but no message that looks like (as mentioned in the document):

[2013-12-18 01:36:35.053] WARN t Resolve Thread (Bundle 81) com.hpworkshop.myfirst.impl.MyFirstManager DE0005I MYFIRST: Hey, seems like our app is being activated !

It seams that the methode "activate" is note executed ?

In the GUI of Virgo, I can see my application deployed.

I've continued the tuto but I've never see message in relation with the following instruction :

logger.warn("MYFIRST: Binding controller service");

logger.warn("MYFIRST: DataPath event " + event.toString());

Do you see the problem ?

Re: Problem with HP SDN workshop written by Tomas Kubica

sbotkine — Thu, 27 Feb 2014 07:21:54 GMT

After some investigation, I know now that my acticate methode works, thanks to my alertService.

Here is my code:

@Activate

void activate() {

logger.info("MYFIRST: Hey, seems like our app is being activated !");

alertService.post(Severity.INFO, alertTopic, "MYFIRST", "SERGE: ACTIVATE EXECUTE");

}

alertServie.post works: I have a message into the controler ALERT GUI.

logger.info doesn't works: I have no message into "/opt/sdn/virgo/serviceability/logs/log.log".

An idea ?

Re: Problem with HP SDN workshop written by Tomas Kubica

Tomas_Kubica — Thu, 27 Feb 2014 07:34:57 GMT

Hi,

I am glad you have decided to learn programming for HP VAN SDN Controller !

Please note that document you are refering to is not public one and has been designed for one specific workshop. There are official learning materials including ExpertONE training that are better. Feel free to post questions here, just bear in mind others do not look into the same text :)

Now - not sure why logging does not work for you. I would suggest to check whether your import include logger from

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

since there might be more implementations with the same name.

You might also try to get reference to logger globally in main class:

private final Logger logger = LoggerFactory.getLogger(yourappname.class);

Good luck with developing apps for HP controller !

Tomas

Re: Problem with HP SDN workshop written by Tomas Kubica

sdnindia — Fri, 07 Mar 2014 10:12:38 GMT

Hello sbotkine,

We hope the response from Tomas answers your query.

Please feel free to reply incase you have more questions around the same topic or open a new thread if new topic.

If you feel your query is resolved please let us know my marking the post as an “accepted solution”

Thanks

HP SDN Team