private PackageSource findRequiredSource(String pkgName, KeyedHashSet visited) {
if (requiredBundles == null) return null;
synchronized (requiredSources) {
PackageSource result = (PackageSource) requiredSources.getByKey(pkgName);
if (result != null) return result.isNullSource() ? null : result;
}
if (visited == null) visited = new KeyedHashSet(false);
visited.add(bundle); // always add ourselves so we do not recurse back to ourselves
ArrayList result = new ArrayList(3);
for (int i = 0; i < requiredBundles.length; i++) {
BundleLoader requiredLoader = requiredBundles[i].getBundleLoader();
requiredLoader.addExportedProvidersFor(proxy.getSymbolicName(), pkgName, result, visited);
}
// found some so cache the result for next time and return
PackageSource source;
if (result.size() == 0) {
// did not find it in our required bundles lets record the failure
// so we do not have to do the search again for this package.
source = NullPackageSource.getNullPackageSource(pkgName);
} else if (result.size() == 1) {
// if there is just one source, remember just the single source
source = (PackageSource) result.get(0);
} else {
// if there was more than one source, build a multisource and cache that.
PackageSource[] srcs = (PackageSource[]) result.toArray(new PackageSource[result.size()]);
source = createMultiSource(pkgName, srcs);
}
synchronized (requiredSources) {
requiredSources.add(source);
}
return source.isNullSource() ? null : source;
}
public static void closeBundleLoader(BundleLoaderProxy proxy) {
if (proxy == null) return;
// First close the BundleLoader
BundleLoader loader = proxy.getBasicBundleLoader();
if (loader != null) loader.close();
proxy.setStale();
// if proxy is not null then make sure to unset user object
// associated with the proxy in the state
BundleDescription description = proxy.getBundleDescription();
description.setUserObject(null);
}