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java.lang.IllegalStateException If the {@code BundleContext} withwhich this {@code ServiceTracker} was created is no longer valid.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)

        Assert.assertNotNull(serviceTracker1.waitForService(2000));
        // asserts that test service with custom properties is available
        ServiceTracker serviceTracker2 = new ServiceTracker(bc, FrameworkUtil.createFilter(
                "(&(" + Constants.OBJECTCLASS + "=org.knowhowlab.osgi.testing.it.commons.testbundle.service.Echo)" +
                        "(testkey=testvalue))"), null);
        serviceTracker2.open();
        Assert.assertTrue(serviceTracker2.size() > 0);
        // gets service by class and filter
        Echo echo = (Echo) serviceTracker2.getService();
        // asserts service method call
        Assert.assertEquals("test", echo.echo("test"));

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     *
     * @throws NullPointerException If <code>bc</code> or <code>filter</code> are <code>null</code>
     */
    public static ServiceReference getServiceReference(BundleContext bc, Filter filter) {
        ServiceTracker tracker = new ServiceTracker(bc, filter, null);
        tracker.open();
        try {
            return tracker.getServiceReference();
        } finally {
            tracker.close();
        }

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     */
    public static ServiceReference getServiceReference(BundleContext bc, Filter filter, long timeout, TimeUnit timeUnit) {
        final ReentrantLock lock = new ReentrantLock();
        long timeoutInMillis = timeUnit.toMillis(timeout);
        ServiceTracker tracker = new ServiceTracker(bc, filter, new ServiceTrackerCustomizerWithLock(bc, lock));
        tracker.open();
        try {
            return waitForServiceReference(tracker, timeoutInMillis, lock);
        } catch (InterruptedException e) {
            return null;
        } finally {

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     *
     * @throws NullPointerException If <code>bc</code> or <code>className</code> are <code>null</code>
     */
    public static ServiceReference getServiceReference(BundleContext bc, String className) {
        ServiceTracker tracker = new ServiceTracker(bc, className, null);
        tracker.open();
        try {
            return tracker.getServiceReference();
        } finally {
            tracker.close();
        }

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     */
    public static ServiceReference getServiceReference(BundleContext bc, String className, long timeout, TimeUnit timeUnit) {
        final ReentrantLock lock = new ReentrantLock();
        long timeoutInMillis = timeUnit.toMillis(timeout);
        ServiceTracker tracker = new ServiceTracker(bc, className, new ServiceTrackerCustomizerWithLock(bc, lock));
        tracker.open();
        try {
            return waitForServiceReference(tracker, timeoutInMillis, lock);
        } catch (InterruptedException e) {
            return null;
        } finally {

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     *
     * @throws NullPointerException If <code>bc</code> or <code>clazz</code> are <code>null</code>
     */
    public static ServiceReference getServiceReference(BundleContext bc, Class clazz) {
        ServiceTracker tracker = new ServiceTracker(bc, clazz.getName(), null);
        tracker.open();
        try {
            return tracker.getServiceReference();
        } finally {
            tracker.close();
        }

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     */
    public static ServiceReference getServiceReference(BundleContext bc, Class clazz, long timeout, TimeUnit timeUnit) {
        final ReentrantLock lock = new ReentrantLock();
        long timeoutInMillis = timeUnit.toMillis(timeout);
        ServiceTracker tracker = new ServiceTracker(bc, clazz.getName(), new ServiceTrackerCustomizerWithLock(bc, lock));
        tracker.open();
        try {
            return waitForServiceReference(tracker, timeoutInMillis, lock);
        } catch (InterruptedException e) {
            return null;
        } finally {

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     *
     * @throws NullPointerException If <code>bc</code> or <code>filter</code> are <code>null</code>
     */
    public static Object getService(BundleContext bc, Filter filter) {
        ServiceTracker tracker = new ServiceTracker(bc, filter, null);
        tracker.open();
        try {
            return tracker.getService();
        } finally {
            tracker.close();
        }

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     * @throws NullPointerException     If <code>bc</code>, <code>filter</code> or
     *                                  <code>timeUnit</code> are <code>null</code>
     */
    public static Object getService(BundleContext bc, Filter filter, long timeout, TimeUnit timeUnit) {
        ServiceTracker tracker = new ServiceTracker(bc, filter, null);
        tracker.open();
        try {
            return tracker.waitForService(timeUnit.toMillis(timeout));
        } catch (InterruptedException e) {
            return null;
        } finally {

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     *
     * @throws NullPointerException If <code>bc</code> or <code>className</code> are <code>null</code>
     */
    public static Object getService(BundleContext bc, String className) {
        ServiceTracker tracker = new ServiceTracker(bc, className, null);
        tracker.open();
        try {
            return tracker.getService();
        } finally {
            tracker.close();
        }

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