Hi, Jerome
We probably also need some undeployment events. I know cmp code needs
to get the undeployment events for dropping tables in v2. Actually now
to think of it, maybe we should just add a CMP Deployer to create/delete
tables? When will adding the Deployer more appropriate than using events
in the current infrastructure?
Thanks,
- Hong
> A number of people have been asking for some new events to be sent
> when deployment is happening
>
> I have added 3 events that will be sent for each deployment
>
> Those events are defined in the
> org.glassfish.internal.deployment.Deployment contract definition
>
> public final EventTypes<ExtendedDeploymentContext> DEPLOYMENT_START
> public final EventTypes<ExtendedDeploymentContext>
> DEPLOYMENT_FAILURE
> public final EventTypes<ApplicationInfo> DEPLOYMENT_SUCCESS
>
> to be able to be notified of any application being deployed, you can
> just do
>
> @Inject
> Events events;
>
>
> ....
>
> events.register(new EventListener() {
>
> public void event(Event e) {
> if (e.is(Deployment.DEPLOYMENT_START)) {
> System.out.println("new deployment detected");
> }
> }
> });
>
> Each even carries the ExtendedDeploymentContext object which has all
> relevant information about what's being deployed which can be
> accessed typed safely like that :
> ExtendedDeploymentContext dc =
> Deployment.DEPLOYMENT_START.getHook(e);
>
> Also some folks have been willing to know what caused a deployment
> operation to happen. For instance there is different between first
> time deployment and loading when server restart. In order to
> disambiguate, each deployment operation has an origin attribute which
> identified what caused the deployment operation.
>
> public enum Origin { load, deploy, unload, undeploy }
>
> so say you want to have code that do something when you are in deploy
> (versus just a server restart), you would do with a DeploymentContext
> (dc)
>
> DeployCommandParameters params =
> dc.getCommandParameters(DeployCommandParameters.class);
> switch(params.origin) {
> case Origin.Deploy :
> System.out.println("This is a first time deployment of
> this operation");
> break;
> case Origin.Load :
> System.out.println("this is a reload after server restart
> or disable/enable");
> break;
> }
>
> Jerome
>
>
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