Examples of org.osgi.util.tracker.ServiceTracker.open()

Class org.osgi.util.tracker.ServiceTracker

Examples of org.osgi.util.tracker.ServiceTracker.open()

org.osgi.util.tracker.ServiceTracker.open()
Open this {@code ServiceTracker} and begin tracking services.
This implementation calls {@code open(false)}. @throws java.lang.IllegalStateException If the {@code BundleContext} withwhich this {@code ServiceTracker} was created is no longer valid. @see #open(boolean)

            } else {
                flt = "(" + Constants.OBJECTCLASS + "=" + type.getName() + ")";
            }
            Filter osgiFilter = FrameworkUtil.createFilter(flt);
            tracker = new ServiceTracker(bundleContext, osgiFilter, null);
            tracker.open(true);
            // Note that the tracker is not closed to keep the reference
            // This is buggy, as the service reference may change i think
            Object svc = type.cast(tracker.waitForService(timeout));
            if (svc == null) {
                Dictionary dic = bundleContext.getBundle().getHeaders();

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        }
    }


    public Main getMain() {
        ServiceTracker tracker = new ServiceTracker(getFramework().getBundleContext(), Main.class.getName(), null);
        tracker.open();        
        Main geronimoMain = null;
        try {
            return (Main) tracker.waitForService(1000 * 60);
        } catch (InterruptedException e) {            
            // ignore

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    @Override
    public <T> Tracker<T> track(Class<T> type) {
        checkNotNull(type);
        final ServiceTracker tracker =
                new ServiceTracker(context, type.getName(), null);
        tracker.open();
        return new Tracker<T>() {
            @Override @SuppressWarnings("unchecked")
            public List<T> getServices() {
                Object[] services = tracker.getServices();
                return (List<T>) (services != null ? asList(services) : Collections.emptyList());

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            optional = true;
        }
        // Else, find the resolver
        String filter = "(&(" + Constants.OBJECTCLASS + "=" + Resolver.class.getName() + ")(name=" + resolver + "))";
        ServiceTracker tracker = new ServiceTracker(bundleContext, FrameworkUtil.createFilter(filter), null);
        tracker.open();
        try {
            if (optional) {
                Resolver r = (Resolver) tracker.getService();
                if (r != null) {
                    return r.resolve(feature);

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            optional = true;
        }
        // Else, find the resolver
        String filter = "(&(" + Constants.OBJECTCLASS + "=" + Resolver.class.getName() + ")(name=" + resolver + "))";
        ServiceTracker tracker = new ServiceTracker(bundleContext, FrameworkUtil.createFilter(filter), null);
        tracker.open();
        try {
            if (optional) {
                Resolver r = (Resolver) tracker.getService();
                if (r != null) {
                    return r.resolve(feature);

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        ServiceTracker st = new ServiceTracker(bundleContext,
                                               bundleContext.createFilter(filter),
                                               null);
        
        try {
            st.open();
            st.waitForService(timeout);
        } finally {
            st.close();
        }
    }

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            } else {
                flt = "(" + Constants.OBJECTCLASS + "=" + type.getName() + ")";
            }
            Filter osgiFilter = FrameworkUtil.createFilter(flt);
            tracker = new ServiceTracker(bundleContext, osgiFilter, null);
            tracker.open(true);
            // Note that the tracker is not closed to keep the reference
            // This is buggy, as the service reference may change i think
            Object svc = type.cast(tracker.waitForService(timeout));
            if (svc == null) {
                Dictionary dic = bundleContext.getBundle().getHeaders();

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        else {
            String classFilter = "(" + Constants.OBJECTCLASS + "=" + serviceClass.getName() + ")";
            filterString = "(&" + classFilter + filterString + ")";
            serviceTracker = new ServiceTracker(m_bundleContext, m_bundleContext.createFilter(filterString), null);
        }
        serviceTracker.open();
        try {
            serviceInstance = (T) serviceTracker.waitForService(SERVICE_TIMEOUT * 1000);


            if (serviceInstance == null) {
                fail(serviceClass + " service not found.");

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        flt = "(" + Constants.OBJECTCLASS + "=" + type.getName() + ")";
      }
      Filter osgiFilter = FrameworkUtil.createFilter(flt);
      tracker = new ServiceTracker(bc == null ? bundleContext : bc, osgiFilter,
          null);
      tracker.open();
      // Note that the tracker is not closed to keep the reference
      // This is buggy, has the service reference may change i think
      Object svc = type.cast(tracker.waitForService(timeout));
      if (svc == null) {
        throw new RuntimeException("Gave up waiting for service " + flt);

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    private ServiceTracker initServiceTracker(BundleContext context,
        Class<?> type, ServiceTrackerCustomizer custom)
    {
      ServiceTracker t = new ServiceTracker(context, type.getName(), custom);
      t.open();
      return t;
    }


    public void stop(BundleContext context) {
        /*

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