Examples with ServiceListener org.osgi.framework.ServiceListener used on opensource projects

Example 16 with ServiceListener

use of org.osgi.framework.ServiceListener in project felix by apache.

the class EventDispatcher method serviceChanged.

/**
 * Method called when a {@link ServiceEvent} is
 * fired by the OSGi framework.
 * According to the event, this method dispatches
 * to interested registered listers from
 * the {@link EventDispatcher#m_listeners} map.
 * @param event the service event
 * @see org.osgi.framework.ServiceListener#serviceChanged(org.osgi.framework.ServiceEvent)
 */
public void serviceChanged(ServiceEvent event) {
    String[] itfs = (String[]) event.getServiceReference().getProperty(Constants.OBJECTCLASS);
    for (int s = 0; s < itfs.length; s++) {
        List list;
        synchronized (this) {
            List stored = (List) m_listeners.get(itfs[s]);
            if (stored == null) {
                // Nothing to do
                return;
            }
            // Creates a new list (stack confinement)
            list = new ArrayList(stored);
        }
        for (int i = 0; i < list.size(); i++) {
            ((ServiceListener) list.get(i)).serviceChanged(event);
        }
    }
}

Example 17 with ServiceListener

use of org.osgi.framework.ServiceListener in project felix by apache.

the class AdapterFilterIndex method addServiceListener.

public void addServiceListener(ServiceListener listener, String filter) {
    FilterData data = getFilterData(null, filter);
    if (data != null) {
        Long sidObject = Long.valueOf(data.m_serviceId);
        synchronized (m_sidToListenersMap) {
            List<ServiceListener> listeners = m_sidToListenersMap.get(sidObject);
            if (listeners == null) {
                listeners = new ArrayList<>();
                m_sidToListenersMap.put(sidObject, listeners);
            }
            listeners.add(listener);
            m_listenerToFilterMap.put(listener, filter);
            Matcher matcher = PATTERN.matcher(filter);
            if (matcher.matches()) {
                String objectClass = matcher.group(1);
                m_listenerToObjectClassMap.put(listener, objectClass);
            } else {
                throw new IllegalArgumentException("Filter string does not match index pattern");
            }
        }
    }
}

Example 18 with ServiceListener

use of org.osgi.framework.ServiceListener in project felix by apache.

the class AdapterFilterIndex method serviceChanged.

public void serviceChanged(ServiceEvent event) {
    ServiceReference reference = event.getServiceReference();
    Long sid = ServiceUtil.getServiceIdObject(reference);
    List<ServiceListener> notificationList = new ArrayList<>();
    synchronized (m_sidToListenersMap) {
        List<ServiceListener> list = m_sidToListenersMap.get(sid);
        if (list != null) {
            Iterator<ServiceListener> iterator = list.iterator();
            while (iterator.hasNext()) {
                ServiceListener listener = (ServiceListener) iterator.next();
                String objectClass = m_listenerToObjectClassMap.get(listener);
                if (referenceMatchesObjectClass(reference, objectClass)) {
                    notificationList.add(listener);
                }
            }
        }
    }
    // notify
    Iterator<ServiceListener> iterator = notificationList.iterator();
    while (iterator.hasNext()) {
        ServiceListener listener = (ServiceListener) iterator.next();
        listener.serviceChanged(event);
    }
}

Example 19 with ServiceListener

use of org.osgi.framework.ServiceListener in project felix by apache.

the class AspectFilterIndex method serviceChanged.

public void serviceChanged(ServiceEvent event) {
    List<ServiceListener> list = new ArrayList<>();
    ServiceReference reference = event.getServiceReference();
    Long sidObject = ServiceUtil.getServiceIdObject(reference);
    int ranking = ServiceUtil.getRanking(reference);
    String[] objectClasses = (String[]) reference.getProperty(Constants.OBJECTCLASS);
    synchronized (m_sidToObjectClassToRankingToListenersMap) {
        for (int i = 0; i < objectClasses.length; i++) {
            // handle each of the object classes separately since aspects only work on one object class at a time
            String objectClass = objectClasses[i];
            Map<String, SortedMap<Integer, List<ServiceListener>>> objectClassToRankingToListenersMap = m_sidToObjectClassToRankingToListenersMap.get(sidObject);
            if (objectClassToRankingToListenersMap != null) {
                SortedMap<Integer, List<ServiceListener>> rankingToListenersMap = objectClassToRankingToListenersMap.get(objectClass);
                if (rankingToListenersMap != null) {
                    Iterator<Entry<Integer, List<ServiceListener>>> iterator = rankingToListenersMap.entrySet().iterator();
                    while (iterator.hasNext()) {
                        Entry<Integer, List<ServiceListener>> entry = iterator.next();
                        if (ranking <= ((Integer) entry.getKey()).intValue()) {
                            list.addAll(entry.getValue());
                        }
                    }
                }
            }
        }
    }
    Iterator<ServiceListener> iterator = list.iterator();
    while (iterator.hasNext()) {
        ServiceListener listener = iterator.next();
        listener.serviceChanged(event);
    }
}

Example 20 with ServiceListener

use of org.osgi.framework.ServiceListener in project felix by apache.

the class FilterIndexBundleContext method serviceChanged.

public void serviceChanged(ServiceEvent event) {
    Entry<ServiceListener, String>[] entries = synchronizeCollection();
    for (int i = 0; i < entries.length; i++) {
        Entry<ServiceListener, String> serviceListenerFilterEntry = entries[i];
        ServiceListener serviceListener = serviceListenerFilterEntry.getKey();
        String filter = serviceListenerFilterEntry.getValue();
        if (filter == null) {
            serviceListener.serviceChanged(event);
        } else {
            // TODO review if we can be smarter here
            try {
                if ("(objectClass=*)".equals(filter)) {
                    serviceListener.serviceChanged(event);
                } else {
                    if (m_context.createFilter(filter).match(event.getServiceReference())) {
                        serviceListener.serviceChanged(event);
                    }
                }
            } catch (InvalidSyntaxException e) {
                e.printStackTrace();
            }
        }
    }
}