Hi,
This may be more of a basic Java question, but I’ll ask it anyway because it
relates to “bouncing” and the handling of dynamic behavior.
In my @Activate method, I configure my component. Since the configuration may
be long-running (data is retrieved remotely), I use a Promise. But, the
component is available before it is actually “ready”. So far, this has not been
a problem.
It looks something like this:
@Reference private Store dataStore;
@Activate
void activate() {
configure(dataStore);
}
void configure(Store withDataStore) {
// Configuration is set up via a Promise, using a data store to retrieve the
data
}
However, because there is some bouncing occurring, I think what is happening is
that configure() starts running in a different thread, but in the meantime the
reference to the dataStore is changed. The error log shows that the data store
is in an impossible state. After following a hunch, I could confirm that the
configureData process is running on a data store service that was deactivated
during bouncing.
What would be a good (and simple) strategy to handle this type of long-running
configuration, where the configuration is in a different thread and depends on
services that may come and go?
Note: in the end, the component gets configured and the application runs, but I
would still like to be able to handle this situation properly.
Thanks!
=David
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