/**
* Remove a bundle listener. The listener is removed from the context bundle's list of listeners.
* See {@link #getBundle() getBundle()} for a definition of context bundle.
*
* <p>If this method is called with a listener which is not registered, then this method does
* nothing.
*
* @param listener The bundle listener to remove.
* @exception java.lang.IllegalStateException If the bundle context has stopped.
*/
public void removeBundleListener(BundleListener listener) {
checkValid();
if (listener == null) {
throw new IllegalArgumentException();
}
if (Debug.DEBUG_EVENTS) {
String listenerName =
listener.getClass().getName()
+ "@"
+ Integer.toHexString(System.identityHashCode(listener)); // $NON-NLS-1$
Debug.println(
"removeBundleListener["
+ bundle
+ "]("
+ listenerName
+ ")"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
framework.removeBundleListener(listener, this);
}
/**
* Bottom level event dispatcher for the BundleContext.
*
* @param originalListener listener object registered under.
* @param l listener to call (may be filtered).
* @param action Event class type
* @param object Event object
*/
public void dispatchEvent(Object originalListener, Object l, int action, Object object) {
// save the bundle ref to a local variable
// to avoid interference from another thread closing this context
AbstractBundle tmpBundle = bundle;
Object previousTCCL = setContextFinder();
try {
if (isValid()) /* if context still valid */ {
switch (action) {
case Framework.BUNDLEEVENT:
case Framework.BUNDLEEVENTSYNC:
{
BundleListener listener = (BundleListener) l;
if (Debug.DEBUG_EVENTS) {
String listenerName =
listener.getClass().getName()
+ "@"
+ Integer.toHexString(System.identityHashCode(listener)); // $NON-NLS-1$
Debug.println(
"dispatchBundleEvent["
+ tmpBundle
+ "]("
+ listenerName
+ ")"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
BundleEvent event = (BundleEvent) object;
switch (event.getType()) {
case Framework.BATCHEVENT_BEGIN:
{
if (listener instanceof BatchBundleListener)
((BatchBundleListener) listener).batchBegin();
break;
}
case Framework.BATCHEVENT_END:
{
if (listener instanceof BatchBundleListener)
((BatchBundleListener) listener).batchEnd();
break;
}
default:
{
listener.bundleChanged((BundleEvent) object);
}
}
break;
}
case ServiceRegistry.SERVICEEVENT:
{
ServiceEvent event = (ServiceEvent) object;
ServiceListener listener = (ServiceListener) l;
if (Debug.DEBUG_EVENTS) {
String listenerName =
listener.getClass().getName()
+ "@"
+ Integer.toHexString(System.identityHashCode(listener)); // $NON-NLS-1$
Debug.println(
"dispatchServiceEvent["
+ tmpBundle
+ "]("
+ listenerName
+ ")"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
listener.serviceChanged(event);
break;
}
case Framework.FRAMEWORKEVENT:
{
FrameworkListener listener = (FrameworkListener) l;
if (Debug.DEBUG_EVENTS) {
String listenerName =
listener.getClass().getName()
+ "@"
+ Integer.toHexString(System.identityHashCode(listener)); // $NON-NLS-1$
Debug.println(
"dispatchFrameworkEvent["
+ tmpBundle
+ "]("
+ listenerName
+ ")"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
listener.frameworkEvent((FrameworkEvent) object);
break;
}
default:
{
throw new InternalError();
}
}
}
} catch (Throwable t) {
if (Debug.DEBUG_GENERAL) {
Debug.println(
"Exception in bottom level event dispatcher: " + t.getMessage()); // $NON-NLS-1$
Debug.printStackTrace(t);
}
// allow the adaptor to handle this unexpected error
framework.adaptor.handleRuntimeError(t);
publisherror:
{
if (action == Framework.FRAMEWORKEVENT) {
FrameworkEvent event = (FrameworkEvent) object;
if (event.getType() == FrameworkEvent.ERROR) {
break publisherror; // avoid infinite loop
}
}
framework.publishFrameworkEvent(FrameworkEvent.ERROR, tmpBundle, t);
}
} finally {
if (previousTCCL != Boolean.FALSE)
Thread.currentThread().setContextClassLoader((ClassLoader) previousTCCL);
}
}