@Test
public void testAttachedFragment() throws Exception {
Bundle hostA = installBundle(getHostA());
assertBundleState(Bundle.INSTALLED, hostA.getState());
Bundle fragA = installBundle(getFragmentA());
assertBundleState(Bundle.INSTALLED, fragA.getState());
hostA.start();
assertBundleState(Bundle.ACTIVE, hostA.getState());
assertBundleState(Bundle.RESOLVED, fragA.getState());
URL entryURL = hostA.getEntry("resource.txt");
assertNull("Entry URL null", entryURL);
URL resourceURL = hostA.getResource("resource.txt");
assertEquals("bundle", resourceURL.getProtocol());
assertEquals("/resource.txt", resourceURL.getPath());
BufferedReader br = new BufferedReader(new InputStreamReader(resourceURL.openStream()));
assertEquals("fragA", br.readLine());
// Load class provided by the fragment
assertLoadClass(hostA, FragBeanA.class.getName());
// Load a private class from host
assertLoadClass(hostA, SubBeanA.class.getName());
// PackageAdmin.getBundleType
PackageAdmin pa = getPackageAdmin();
assertEquals("Bundle type", 0, pa.getBundleType(hostA));
assertEquals("Bundle type", PackageAdmin.BUNDLE_TYPE_FRAGMENT, pa.getBundleType(fragA));
// PackageAdmin.getHosts
Bundle[] hosts = pa.getHosts(hostA);
assertNull("Not a fragment", hosts);
hosts = pa.getHosts(fragA);
assertNotNull("Hosts not null", hosts);
assertEquals("Hosts length", 1, hosts.length);
assertEquals("Hosts equals", hostA, hosts[0]);
// PackageAdmin.getFragments
Bundle[] fragments = pa.getFragments(fragA);
assertNull("Not a host", fragments);
fragments = pa.getFragments(hostA);
assertNotNull("Fragments not null", fragments);
assertEquals("Fragments length", 1, fragments.length);
assertEquals("Fragments equals", fragA, fragments[0]);
hostA.uninstall();
assertBundleState(Bundle.UNINSTALLED, hostA.getState());
assertBundleState(Bundle.RESOLVED, fragA.getState());
fragA.uninstall();
assertBundleState(Bundle.UNINSTALLED, fragA.getState());
}
/** On start, we do two things We register a listener for bundles and we start our JPA server */
public void start(BundleContext context) throws Exception {
Activator.context = context;
String initializer = null;
ServiceReference packageAdminRef =
context.getServiceReference("org.osgi.service.packageadmin.PackageAdmin");
PackageAdmin packageAdmin = (PackageAdmin) context.getService(packageAdminRef);
Bundle[] fragments = packageAdmin.getFragments(context.getBundle());
if (fragments != null) {
for (int i = 0; i < fragments.length; i++) {
Bundle fragment = fragments[i];
initializer = (String) fragment.getHeaders().get("JPA-Initializer");
if (initializer != null) {
AbstractSessionLog.getLog()
.log(
SessionLog.CONFIG,
LoggingLocalization.buildMessage("osgi_initializer", new Object[] {initializer}));
break;
}
}
}
osgiProvider = new PersistenceProvider(initializer);
registerBundleListener();
}
public Bundle[] getFragments(Bundle bundle) {
PackageAdmin packageAdmin = getPackageAdmin();
if (packageAdmin == null) return null;
return packageAdmin.getFragments(bundle);
}