/** Look for persistence unit bundles that were already installed when we came along. */
public void lookForExistingBundles() {
// Look at the bundles that are already installed
Bundle[] installedBundles = mgr.getBundleContext().getBundles();
debug("Extender.lookForExistingBundles: ", installedBundles);
// Check if any are p-unit bundles
for (Bundle b : installedBundles) {
if (isPersistenceUnitBundle(b)) {
// We found a persistence unit bundle.
if (GeminiSystemProperties.refreshPersistenceBundles()) {
// If bundle is active then refresh it and push it through the life cycle again
// so it will go through resolving and we can assign it a provider, etc.
// if ((b.getState() != Bundle.INSTALLED) && (b.getState() != Bundle.UNINSTALLED)) {
if (b.getState() == Bundle.ACTIVE) {
if (isAssigned(b)) {
debug(
"Found existing installed bundle " + b.getSymbolicName(),
" but it was already assigned");
} else {
debug(
"Found active bundle ",
b,
" - refreshing to push it back to resolve for processing");
refreshBundle(b);
}
}
} else {
// Refreshing is disabled - go through assigning and registering process w/o events
if (b.getState() != Bundle.UNINSTALLED) {
// Assign the p-unit
// NOTE: With no refresh, assigning may be happening after the bundle has been resolved
warning(
"Extender - Refreshing disabled - entities in bundle " + b.getSymbolicName(),
" may not be woven");
tryAssigningPersistenceUnitsInBundle(b);
// Now if bundle is starting or active then register the p-units in it
if ((b.getState() == Bundle.STARTING) || (b.getState() == Bundle.ACTIVE)) {
registerPersistenceUnitsInBundle(b);
} // Otherwise just let future events take their course
}
}
}
}
}
/**
* Refresh the persistence bundle. If persistence units have already been registered they should
* have been unregistered before making this refresh call.
*
* @param b the bundle the p-units are in
*/
public void refreshBundle(Bundle b) {
debug("Extender.refreshBundle: ", b);
// Add the list of currently refreshing bundles.
// (It will be removed when the UNRESOLVED event is fired on it)
addToRefreshingBundles(b);
// Call refresh on all of the packages
PackageAdmin admin = getPackageAdmin(mgr.getBundleContext());
admin.refreshPackages(new Bundle[] {b});
/* New 4.3 code to use to refresh bundle */
/*
Bundle systemBundle = mgr.getBundleContext().getBundle(0);
FrameworkWiring fw = systemBundle.adapt(FrameworkWiring.class);
fw.refreshBundles(Arrays.asList(b));
*/
}
/** Stop listening to bundle events. */
public void stopListening() {
debug("Extender.stopListening");
mgr.getBundleContext().removeBundleListener(this);
}
/** Start listening for bundle events to indicate the presence of persistence unit bundles. */
public void startListening() {
debug("Extender.startListening");
mgr.getBundleContext().addBundleListener(this);
}
