/** 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
}
}
}
}
}
public void bundleChanged(BundleEvent event) {
// Only continue if it is a persistence unit bundle
Bundle b = event.getBundle();
debug("Extender - bundle event: ", event);
if (!isPersistenceUnitBundle(b)) return;
// Process each event
int eventType = event.getType();
if (eventType == BundleEvent.INSTALLED) {
tryAssigningPersistenceUnitsInBundle(b);
} else if (eventType == BundleEvent.LAZY_ACTIVATION) {
if (isAssigned(b)) {
lazyBundles.add(b.getBundleId());
registerPersistenceUnitsInBundle(b);
}
} else if (eventType == BundleEvent.STARTING) {
if (!isAssigned(b) && !GeminiSystemProperties.refreshPersistenceBundles()) {
warning(
"Refreshing disabled - Bundle " + b.getSymbolicName(),
" starting - entities may not be woven");
tryAssigningPersistenceUnitsInBundle(b);
}
if (isAssigned(b)) {
if (!isLazy(b)) {
registerPersistenceUnitsInBundle(b);
}
}
} else if (eventType == BundleEvent.STARTED) {
// If not assigned and not in limbo then this must be the fist time we
// have seen it. We need to refresh it to get through our system
if (!isAssigned(b) && !isInLimbo(b.getSymbolicName())) {
if (GeminiSystemProperties.refreshPersistenceBundles()) {
refreshBundle(b);
} else {
warning(
"Refreshing disabled - Bundle " + b.getSymbolicName(),
" started - entities may not be woven");
tryAssigningPersistenceUnitsInBundle(b);
if (isAssigned(b) && !isLazy(b)) {
registerPersistenceUnitsInBundle(b);
}
}
}
} else if (eventType == BundleEvent.STOPPING) {
if (isAssigned(b)) {
// Fix for bug #342996
if (isLazy(b)) {
removeFromLazyBundles(b);
}
unregisterPersistenceUnitsInBundle(b);
}
} else if (eventType == BundleEvent.UNINSTALLED) {
if (isAssigned(b)) {
unassignPersistenceUnitsInBundle(b);
}
} else if (eventType == BundleEvent.UPDATED) {
if (isAssigned(b)) {
unassignPersistenceUnitsInBundle(b);
}
tryAssigningPersistenceUnitsInBundle(b);
} else if (eventType == BundleEvent.UNRESOLVED) {
if (isRefreshing(b)) { // assign refreshing bundles
tryAssigningPersistenceUnitsInBundle(b);
removeFromRefreshingBundles(b);
}
} else { // RESOLVED, STARTED, STOPPED
// Do nothing.
}
}
