Examples with SingleServiceTracker org.apache.karaf.util.tracker.SingleServiceTracker used on opensource projects

Example 1 with SingleServiceTracker

use of org.apache.karaf.util.tracker.SingleServiceTracker in project karaf by apache.

the class Activator method start.

@Override
public void start(final BundleContext context) throws Exception {
    registrations = new ArrayList<>();
    registrations.add(context.registerService(DumpProvider.class, new LogDumpProvider(context), null));
    featuresServiceTracker = new SingleServiceTracker<>(context, FeaturesService.class, (oldFs, newFs) -> {
        if (featuresProviderRegistration != null) {
            featuresProviderRegistration.unregister();
            featuresProviderRegistration = null;
        }
        if (newFs != null) {
            featuresProviderRegistration = context.registerService(DumpProvider.class, new FeaturesDumpProvider(newFs), null);
        }
    });
    featuresServiceTracker.open();
    final DiagnosticDumpMBeanImpl diagnostic = new DiagnosticDumpMBeanImpl();
    diagnostic.setBundleContext(context);
    Hashtable<String, Object> props = new Hashtable<>();
    props.put("jmx.objectname", "org.apache.karaf:type=diagnostic,name=" + System.getProperty("karaf.name"));
    mbeanRegistration = context.registerService(getInterfaceNames(diagnostic), diagnostic, props);
}