Examples of org.osgi.service.wireadmin.WireAdminListener | massapi.com

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Package org.osgi.service.wireadmin

Examples of org.osgi.service.wireadmin.WireAdminListener

org.osgi.service.wireadmin.WireAdminListener
Listener for Wire Admin Events.
{@code WireAdminListener} objects are registered with the Framework serviceregistry and are notified with a {@code WireAdminEvent} object when an eventis broadcast.
{@code WireAdminListener} objects can inspect the received{@code WireAdminEvent} object to determine its type, the {@code Wire} objectwith which it is associated, and the Wire Admin service that broadcasts the event.
{@code WireAdminListener} objects must be registered with a service property{@link WireConstants#WIREADMIN_EVENTS} whose value is a bitwise OR of all theevent types the listener is interested in receiving.
For example:
```
 Integer mask = new Integer(WIRE_TRACE | WIRE_CONNECTED | WIRE_DISCONNECTED); Hashtable ht = new Hashtable(); ht.put(WIREADMIN_EVENTS, mask); context.registerService(WireAdminListener.class.getName(), this, ht); 
```
If a {@code WireAdminListener} object is registered without a serviceproperty {@link WireConstants#WIREADMIN_EVENTS}, then the {@code WireAdminListener} will receive no events.
Security Considerations. Bundles wishing to monitor {@code WireAdminEvent}objects will require {@code ServicePermission[WireAdminListener,REGISTER]} toregister a {@code WireAdminListener} service. Since {@code WireAdminEvent}objects contain {@code Wire} objects, care must be taken in assigningpermission to register a {@code WireAdminListener} service. @see WireAdminEvent @author $Id: 0a0f329f66848f4808f16b57f855dfb54d2bbb7f $

                {
                    Iterator listenerIt = m_wireAdminListeners.keySet().iterator();
                    while(listenerIt.hasNext())
                    {
                        ServiceReference listenerRef = (ServiceReference)listenerIt.next();
                        WireAdminListener listener = (WireAdminListener)m_wireAdminListeners.get(listenerRef);
                        
                        try
                        {
                            Integer evtsInteger = (Integer) listenerRef.getProperty(WireConstants.WIREADMIN_EVENTS);
                            if(evtsInteger != null)
                            {
                                int events = evtsInteger.intValue();
                                if((nextEvent.getType()&events)!=0)
                                {
                                    listener.wireAdminEvent(nextEvent);
                                }                            
                            }
                            else
                            {
                                WireAdminImpl.trace(new Exception("Listener with no WIREADMIN_EVENTS"+listenerRef));

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Related Classes of org.osgi.service.wireadmin.WireAdminListener

org.apache.felix.wireadmin.EventManager$AsyncDispatcher

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