/**
* This method is called when a used handler factory disappears. This method is synchronized to
* avoid concurrent calls to method modifying the factory state.
*
* @param reference the leaving service reference.
* @param service the handler factory object.
* @see
* org.apache.felix.ipojo.util.TrackerCustomizer#removedService(org.osgi.framework.ServiceReference,
* java.lang.Object)
*/
public synchronized void removedService(ServiceReference reference, Object service) {
// Look for the implied reference and invalid the handler identifier
for (Object m_requiredHandler : m_requiredHandlers) {
RequiredHandler req = (RequiredHandler) m_requiredHandler;
if (reference.equals(req.getReference())) {
req.unRef(); // This method will unget the service.
computeFactoryState();
return; // The factory can be used only once.
}
}
}
/**
* This method is called when a new handler factory is detected. Test if the factory can be used
* or not. This method need to be synchronized as it accesses to the content of required handlers.
*
* @param reference the new service reference.
* @return <code>true</code> if the given factory reference matches with a required handler.
* @see
* org.apache.felix.ipojo.util.TrackerCustomizer#addingService(org.osgi.framework.ServiceReference)
*/
public synchronized boolean addingService(ServiceReference reference) {
for (int i = 0; i < m_requiredHandlers.size(); i++) {
RequiredHandler req = (RequiredHandler) m_requiredHandlers.get(i);
if (req.getReference() == null && match(req, reference)) {
int oldP = req.getLevel();
req.setReference(reference);
// If the priority has changed, sort the list.
if (oldP != req.getLevel()) {
// Manipulate the list.
Collections.sort(m_requiredHandlers);
}
return true;
}
}
return false;
}