org.apache.felix.eventadmin.impl.adapter
Class LogEventAdapter

java.lang.Object
  extended by org.apache.felix.eventadmin.impl.adapter.LogEventAdapter
All Implemented Interfaces:
java.util.EventListener, org.osgi.framework.ServiceListener

public class LogEventAdapter
extends java.lang.Object
implements org.osgi.framework.ServiceListener

This class registers itself as a listener for LogReaderService services with the framework and subsequently, a LogListener callback with any currently available LogReaderService. Any received log event is then posted via the EventAdmin as specified in 113.6.6 OSGi R4 compendium. Note that this class does not create a hard dependency on the org.osgi.service.log packages. The adaption only takes place if it is present or once it becomes available hence, combined with a DynamicImport-Package no hard dependency is needed.

Author:
Felix Project Team

Constructor Summary
LogEventAdapter(org.osgi.framework.BundleContext context, org.osgi.service.event.EventAdmin admin)
          The constructor of the adapter.
 
Method Summary
 void serviceChanged(org.osgi.framework.ServiceEvent event)
          Once a LogReaderService register event is received this method registers a LogListener with the received service that assembles and posts any log event via the EventAdmin as specified in 113.6.6 OSGi R4 compendium.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

LogEventAdapter

public LogEventAdapter(org.osgi.framework.BundleContext context,
                       org.osgi.service.event.EventAdmin admin)
The constructor of the adapter. This will register the adapter with the given context as a listener for LogReaderService services and subsequently, a LogListener callback with any currently available LogReaderService. Any received log event is then posted via the given EventAdmin.

Parameters:
context - The bundle context with which to register as a listener.
admin - The EventAdmin to use for posting events.
Method Detail

serviceChanged

public void serviceChanged(org.osgi.framework.ServiceEvent event)
Once a LogReaderService register event is received this method registers a LogListener with the received service that assembles and posts any log event via the EventAdmin as specified in 113.6.6 OSGi R4 compendium.

Specified by:
serviceChanged in interface org.osgi.framework.ServiceListener
Parameters:
event - The event to adapt.