private ModuleClassLoader getModuleClassLoader(boolean logResolveError) {
ResolutionReport report = resolve();
if (logResolveError && !Module.RESOLVED_SET.contains(module.getState())) {
String reportMessage = report.getResolutionReportMessage(module.getCurrentRevision());
equinoxContainer
.getEventPublisher()
.publishFrameworkEvent(
FrameworkEvent.ERROR,
this,
new BundleException(reportMessage, BundleException.RESOLVE_ERROR));
}
return AccessController.doPrivileged(
new PrivilegedAction<ModuleClassLoader>() {
@Override
public ModuleClassLoader run() {
ModuleWiring wiring = getModule().getCurrentRevision().getWiring();
if (wiring != null) {
ModuleLoader moduleLoader = wiring.getModuleLoader();
if (moduleLoader instanceof BundleLoader) {
return ((BundleLoader) moduleLoader).getModuleClassLoader();
}
}
return null;
}
});
}
@Override
public int getState() {
switch (module.getState()) {
case INSTALLED:
return Bundle.INSTALLED;
case RESOLVED:
return Bundle.RESOLVED;
case STARTING:
case LAZY_STARTING:
return Bundle.STARTING;
case ACTIVE:
return Bundle.ACTIVE;
case STOPPING:
return Bundle.STOPPING;
case UNINSTALLED:
return Bundle.UNINSTALLED;
default:
throw new IllegalStateException(
"No valid bundle state for module state: " + module.getState()); // $NON-NLS-1$
}
}
BundleContextImpl createBundleContext(boolean checkPermission) {
if (isFragment()) {
// fragments cannot have contexts
return null;
}
synchronized (this.monitor) {
if (context == null) {
// only create the context if we are starting, active or stopping
// this is so that SCR can get the context for lazy-start bundles
if (Module.ACTIVE_SET.contains(module.getState())) {
context = new BundleContextImpl(this, equinoxContainer);
}
}
return context;
}
}
@Override
public Class<?> loadClass(String name) throws ClassNotFoundException {
try {
equinoxContainer.checkAdminPermission(this, AdminPermission.CLASS);
} catch (SecurityException e) {
throw new ClassNotFoundException(name, e);
}
checkValid();
if (isFragment()) {
throw new ClassNotFoundException(
"Can not load a class from a fragment bundle: " + this); // $NON-NLS-1$
}
try {
ModuleClassLoader classLoader = getModuleClassLoader(true);
if (classLoader != null) {
if (name.length() > 0 && name.charAt(0) == '[')
return Class.forName(name, false, classLoader);
return classLoader.loadClass(name);
}
} catch (ClassNotFoundException e) {
// This is an equinox-ism. Not sure it is worth it to offer an option to disable ...
// On failure attempt to activate lazy activating bundles.
if (State.LAZY_STARTING.equals(module.getState())) {
try {
module.start(StartOptions.LAZY_TRIGGER);
} catch (BundleException e1) {
equinoxContainer
.getLogServices()
.log(EquinoxContainer.NAME, FrameworkLogEntry.WARNING, e.getMessage(), e);
}
}
throw e;
}
throw new ClassNotFoundException(
"No class loader available for the bundle: " + this); // $NON-NLS-1$
}
private final void checkValid() {
if (module.getState().equals(State.UNINSTALLED))
throw new IllegalStateException("Module has been uninstalled."); // $NON-NLS-1$
}
@SuppressWarnings("unchecked")
private <A> A adapt0(Class<A> adapterType) {
if (AccessControlContext.class.equals(adapterType)) {
Generation current = (Generation) module.getCurrentRevision().getRevisionInfo();
ProtectionDomain domain = current.getDomain();
return (A)
(domain == null ? null : new AccessControlContext(new ProtectionDomain[] {domain}));
}
if (BundleContext.class.equals(adapterType)) {
try {
return (A) getBundleContext();
} catch (SecurityException e) {
return null;
}
}
if (BundleRevision.class.equals(adapterType)) {
if (module.getState().equals(State.UNINSTALLED)) {
return null;
}
return (A) module.getCurrentRevision();
}
if (BundleRevisions.class.equals(adapterType)) {
return (A) module.getRevisions();
}
if (BundleStartLevel.class.equals(adapterType)) {
return (A) module;
}
if (BundleWiring.class.equals(adapterType)) {
if (module.getState().equals(State.UNINSTALLED)) {
return null;
}
ModuleRevision revision = module.getCurrentRevision();
if (revision == null) {
return null;
}
return (A) revision.getWiring();
}
if (BundleDTO.class.equals(adapterType)) {
// Unfortunately we need to lock here to make sure the BSN and version
// are consistent in case of updates
readLock();
try {
return (A) DTOBuilder.newBundleDTO(this);
} finally {
readUnlock();
}
}
if (BundleStartLevelDTO.class.equals(adapterType)) {
if (module.getState().equals(State.UNINSTALLED)) {
return null;
}
return (A) DTOBuilder.newBundleStartLevelDTO(this, module);
}
if (BundleRevisionDTO.class.equals(adapterType)) {
if (module.getState().equals(State.UNINSTALLED)) {
return null;
}
return (A) DTOBuilder.newBundleRevisionDTO(module.getCurrentRevision());
}
if (BundleRevisionDTO[].class.equals(adapterType)) {
if (module.getState().equals(State.UNINSTALLED)) {
return null;
}
// No need to lock the database here since the ModuleRevisions object does the
// proper locking for us.
return (A) DTOBuilder.newArrayBundleRevisionDTO(module.getRevisions());
}
if (BundleWiringDTO.class.equals(adapterType)) {
if (module.getState().equals(State.UNINSTALLED)) {
return null;
}
readLock();
try {
return (A) DTOBuilder.newBundleWiringDTO(module.getCurrentRevision());
} finally {
readUnlock();
}
}
if (BundleWiringDTO[].class.equals(adapterType)) {
if (module.getState().equals(State.UNINSTALLED)) {
return null;
}
readLock();
try {
return (A) DTOBuilder.newArrayBundleWiringDTO(module.getRevisions());
} finally {
readUnlock();
}
}
if (ServiceReferenceDTO[].class.equals(adapterType)) {
if (module.getState().equals(State.UNINSTALLED)) {
return null;
}
BundleContextImpl current = getBundleContextImpl();
ServiceReference<?>[] references =
(current == null)
? null
: equinoxContainer.getServiceRegistry().getRegisteredServices(current);
return (A) DTOBuilder.newArrayServiceReferenceDTO(references);
}
if (getBundleId() == 0) {
if (Framework.class.equals(adapterType)) {
return (A) this;
}
if (FrameworkStartLevel.class.equals(adapterType)) {
return (A) equinoxContainer.getStorage().getModuleContainer().getFrameworkStartLevel();
}
if (FrameworkWiring.class.equals(adapterType)) {
return (A) equinoxContainer.getStorage().getModuleContainer().getFrameworkWiring();
}
if (FrameworkDTO.class.equals(adapterType)) {
BundleContextImpl current = getBundleContextImpl();
Map<String, String> configuration = equinoxContainer.getConfiguration().getConfiguration();
readLock();
try {
return (A) DTOBuilder.newFrameworkDTO(current, configuration);
} finally {
readUnlock();
}
}
if (FrameworkStartLevelDTO.class.equals(adapterType)) {
return (A)
DTOBuilder.newFrameworkStartLevelDTO(
equinoxContainer.getStorage().getModuleContainer().getFrameworkStartLevel());
}
}
// Equinox extras
if (Module.class.equals(adapterType)) {
return (A) module;
}
if (ProtectionDomain.class.equals(adapterType)) {
Generation current = (Generation) module.getCurrentRevision().getRevisionInfo();
return (A) current.getDomain();
}
return null;
}
ResolutionReport resolve() {
if (!Module.RESOLVED_SET.contains(module.getState())) {
return module.getContainer().resolve(Arrays.asList(module), true);
}
return null;
}