Examples with ServiceTracker org.osgi.util.tracker.ServiceTracker used on opensource projects

Example 21 with ServiceTracker

use of org.osgi.util.tracker.ServiceTracker in project camel by apache.

the class CamelKarafTestSupport method getOsgiService.

@SuppressWarnings("unchecked")
protected <T> T getOsgiService(Class<T> type, String filter, long timeout) {
    ServiceTracker tracker = null;
    try {
        String flt;
        if (filter != null) {
            if (filter.startsWith("(")) {
                flt = "(&(" + Constants.OBJECTCLASS + "=" + type.getName() + ")" + filter + ")";
            } else {
                flt = "(&(" + Constants.OBJECTCLASS + "=" + type.getName() + ")(" + filter + "))";
            }
        } 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();
            System.err.println("Test bundle headers: " + explode(dic));
            for (ServiceReference ref : asCollection(bundleContext.getAllServiceReferences(null, null))) {
                System.err.println("ServiceReference: " + ref);
            }
            for (ServiceReference ref : asCollection(bundleContext.getAllServiceReferences(null, flt))) {
                System.err.println("Filtered ServiceReference: " + ref);
            }
            throw new RuntimeException("Gave up waiting for service " + flt);
        }
        return type.cast(svc);
    } catch (InvalidSyntaxException e) {
        throw new IllegalArgumentException("Invalid filter", e);
    } catch (InterruptedException e) {
        throw new RuntimeException(e);
    }
}

Example 22 with ServiceTracker

use of org.osgi.util.tracker.ServiceTracker in project felix by apache.

the class Activator method createCommandProcessorTracker.

private ServiceTracker createCommandProcessorTracker() {
    return new ServiceTracker(context, CommandProcessor.class.getName(), null) {

        @Override
        public Object addingService(ServiceReference reference) {
            CommandProcessor processor = (CommandProcessor) super.addingService(reference);
            startShell(context, processor);
            return processor;
        }

        @Override
        public void removedService(ServiceReference reference, Object service) {
            stopShell();
            super.removedService(reference, service);
        }
    };
}

Example 23 with ServiceTracker

use of org.osgi.util.tracker.ServiceTracker in project felix by apache.

the class FileInstall method start.

public void start(BundleContext context) throws Exception {
    this.context = context;
    lock.writeLock().lock();
    try {
        Hashtable<String, Object> props = new Hashtable<String, Object>();
        props.put("url.handler.protocol", JarDirUrlHandler.PROTOCOL);
        urlHandlerRegistration = context.registerService(org.osgi.service.url.URLStreamHandlerService.class.getName(), new JarDirUrlHandler(), props);
        String flt = "(|(" + Constants.OBJECTCLASS + "=" + ArtifactInstaller.class.getName() + ")" + "(" + Constants.OBJECTCLASS + "=" + ArtifactTransformer.class.getName() + ")" + "(" + Constants.OBJECTCLASS + "=" + ArtifactUrlTransformer.class.getName() + "))";
        listenersTracker = new ServiceTracker(context, FrameworkUtil.createFilter(flt), this);
        listenersTracker.open();
        try {
            cmSupport = new ConfigAdminSupport(context, this);
        } catch (NoClassDefFoundError e) {
            Util.log(context, Logger.LOG_DEBUG, "ConfigAdmin is not available, some features will be disabled", e);
        }
        // Created the initial configuration
        Hashtable<String, String> ht = new Hashtable<String, String>();
        set(ht, DirectoryWatcher.POLL);
        set(ht, DirectoryWatcher.DIR);
        set(ht, DirectoryWatcher.LOG_LEVEL);
        set(ht, DirectoryWatcher.LOG_DEFAULT);
        set(ht, DirectoryWatcher.FILTER);
        set(ht, DirectoryWatcher.TMPDIR);
        set(ht, DirectoryWatcher.START_NEW_BUNDLES);
        set(ht, DirectoryWatcher.USE_START_TRANSIENT);
        set(ht, DirectoryWatcher.USE_START_ACTIVATION_POLICY);
        set(ht, DirectoryWatcher.NO_INITIAL_DELAY);
        set(ht, DirectoryWatcher.DISABLE_CONFIG_SAVE);
        set(ht, DirectoryWatcher.ENABLE_CONFIG_SAVE);
        set(ht, DirectoryWatcher.CONFIG_ENCODING);
        set(ht, DirectoryWatcher.START_LEVEL);
        set(ht, DirectoryWatcher.ACTIVE_LEVEL);
        set(ht, DirectoryWatcher.UPDATE_WITH_LISTENERS);
        set(ht, DirectoryWatcher.OPTIONAL_SCOPE);
        set(ht, DirectoryWatcher.FRAGMENT_SCOPE);
        set(ht, DirectoryWatcher.DISABLE_NIO2);
        set(ht, DirectoryWatcher.SUBDIR_MODE);
        // check if dir is an array of dirs
        String dirs = ht.get(DirectoryWatcher.DIR);
        if (dirs != null && dirs.indexOf(',') != -1) {
            StringTokenizer st = new StringTokenizer(dirs, ",");
            int index = 0;
            while (st.hasMoreTokens()) {
                final String dir = st.nextToken().trim();
                ht.put(DirectoryWatcher.DIR, dir);
                String name = "initial";
                if (index > 0)
                    name = name + index;
                updated(name, new Hashtable<String, String>(ht));
                index++;
            }
        } else {
            updated("initial", ht);
        }
    } finally {
        // now notify all the directory watchers to proceed
        // We need this to avoid race conditions observed in FELIX-2791
        lock.writeLock().unlock();
    }
}

Example 24 with ServiceTracker

use of org.osgi.util.tracker.ServiceTracker in project felix by apache.

the class Activator method start.

public void start(BundleContext context) throws Exception {
    m_context = context;
    m_tracker = new ServiceTracker(context, TestService.class.getName(), this);
    m_tracker.open();
}

Example 25 with ServiceTracker

use of org.osgi.util.tracker.ServiceTracker in project felix by apache.

the class BaseIntegrationTest method awaitService.

protected <T> T awaitService(String serviceName) throws Exception {
    ServiceTracker tracker = new ServiceTracker(m_context, serviceName, null);
    tracker.open();
    T result;
    try {
        result = (T) tracker.waitForService(DEFAULT_TIMEOUT);
    } finally {
        tracker.close();
    }
    return result;
}