Checking JBoss connection

[abdelaziz marzouk, modifié il y a 9 années.]

Hi,

I have listener which is triggered whenever a a war file is put in the deployment folder of liferay, I do a check on the deployed element and I check something in the deployment, I have a listener also when I undeploy, the undeployment does something in a db table in Liferay, when JBoss is shutting down, I lose the db connection but the undeployment listener is still working, I want to check if there is a JDBC connection or not before I execute the undeployment, is that possible?

Thanks

[Patrick Wolf, modifié il y a 9 années.]

I assume you are using the JBoss/Liferay bundle, aren't you?

[David H Nebinger, modifié il y a 9 années.]

If you're shutting down does it really matter if the DB is there or not? Best you can hope for is intercepting the exception and discarding anyways.

I think you have to question what you're doing, however. At shutdown nothing is really getting undeployed (just like at startup the existing apps aren't being deployed). If you're treating them the same as an actual deploy/undeploy, you're going to find that you're mixing in a whole lot of invalid crap into your table.

[abdelaziz marzouk, modifié il y a 9 années.]

The problem is that this method has two use cases:
1- When I undeploy a war file while the server is up and running , I have some logic to execute
2- When I am shutting down it is also executed but I want to catch the exception and never show in the log files

I am using JBoss server, and I need to know for the second case, if I can ask Liferay API are you shutting down, then I could catch the exception, but the first case, I would leave it because I need to know if my business logic was correctly executed.

Thanks

[Patrick Wolf, modifié il y a 9 années.]

Does this help?
Intercepting JBoss shutdown

[abdelaziz marzouk, modifié il y a 9 années.]

I prefere to check liferay API first

[David H Nebinger, modifié il y a 9 années.]

Liferay typically does not know that the server is shutting down. Liferay has a shutdown button in the control panel but I don't think anyone uses it like ever.

[abdelaziz marzouk, modifié il y a 9 années.]

Thanks