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

Example 71 with ServiceTracker

use of org.osgi.util.tracker.ServiceTracker in project translationstudio8 by heartsome.

the class Activator method start.

/**
	 * (non-Javadoc)
	 * @see org.osgi.framework.BundleActivator#start(org.osgi.framework.BundleContext)
	 * @param context
	 * @throws Exception
	 */
public void start(BundleContext context) throws Exception {
    plugin = this;
    bundleContext = context;
    // tracker the xml converter service
    String positiveFilter = new AndFilter(new EqFilter(Constants.OBJECTCLASS, Converter.class.getName()), new EqFilter(Converter.ATTR_TYPE, Xml2Xliff.TYPE_VALUE), new EqFilter(Converter.ATTR_DIRECTION, Converter.DIRECTION_POSITIVE)).toString();
    positiveTracker = new ServiceTracker(context, context.createFilter(positiveFilter), new XmlPositiveCustomizer());
    positiveTracker.open();
    String reverseFilter = new AndFilter(new EqFilter(Constants.OBJECTCLASS, Converter.class.getName()), new EqFilter(Converter.ATTR_TYPE, Xliff2Xml.TYPE_VALUE), new EqFilter(Converter.ATTR_DIRECTION, Converter.DIRECTION_REVERSE)).toString();
    reverseTracker = new ServiceTracker(context, context.createFilter(reverseFilter), new XmlReverseCustomize());
    reverseTracker.open();
}

Example 72 with ServiceTracker

use of org.osgi.util.tracker.ServiceTracker in project translationstudio8 by heartsome.

the class Activator method start.

/**
	 * (non-Javadoc)
	 * @see org.osgi.framework.BundleActivator#start(org.osgi.framework.BundleContext)
	 * @param context
	 * @throws Exception
	 */
public void start(BundleContext context) throws Exception {
    plugin = this;
    bundleContext = context;
    // tracker the rtf converter service
    String positiveFilter = new AndFilter(new EqFilter(Constants.OBJECTCLASS, Converter.class.getName()), new EqFilter(Converter.ATTR_TYPE, Rtf2Xliff.TYPE_VALUE), new EqFilter(Converter.ATTR_DIRECTION, Converter.DIRECTION_POSITIVE)).toString();
    positiveTracker = new ServiceTracker(context, context.createFilter(positiveFilter), new RtfPositiveCustomizer());
    positiveTracker.open();
    String reverseFilter = new AndFilter(new EqFilter(Constants.OBJECTCLASS, Converter.class.getName()), new EqFilter(Converter.ATTR_TYPE, Xliff2Rtf.TYPE_VALUE), new EqFilter(Converter.ATTR_DIRECTION, Converter.DIRECTION_REVERSE)).toString();
    reverseTracker = new ServiceTracker(context, context.createFilter(reverseFilter), new RtfReverseCustomize());
    reverseTracker.open();
}

Example 73 with ServiceTracker

use of org.osgi.util.tracker.ServiceTracker in project opennms by OpenNMS.

the class DispatcherWhiteboard method dispatch.

@SuppressWarnings({ "rawtypes", "unchecked" })
@Consume(property = "endpointUri")
public void dispatch(final Object message) throws NoSuchMethodException, SecurityException {
    LOG.debug("dispatch: {}", message);
    if (m_tracker == null) {
        m_tracker = new ServiceTracker(m_context, m_serviceClass, null);
        m_tracker.open();
    }
    if (m_method == null) {
        m_method = m_serviceClass.getMethod(m_methodName, m_messageClass);
    }
    try {
        Object[] services = m_tracker.getServices();
        if (services != null && services.length > 0) {
            for (Object service : m_tracker.getServices()) {
                m_method.invoke(service, message);
            }
        } else {
            // in case there is no dispatcher registered, let the user know.
            LOG.warn("No dispatcher for message found. ServiceClass: {}, ServiceMethod: {}", m_serviceClass, m_methodName);
        }
    } catch (Throwable e) {
        // If anything goes wrong, log an error message
        // TODO: Use a dead-letter channel?
        LOG.warn("Message dispatch failed: " + e.getMessage(), e);
    }
}

Example 74 with ServiceTracker

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

the class KarafTestSupport method getOsgiService.

@SuppressWarnings({ "rawtypes", "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 75 with ServiceTracker

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

the class SecuredCommandProcessorImpl method trackConverters.

private ServiceTracker<Converter, Converter> trackConverters(BundleContext context) {
    return new ServiceTracker<Converter, Converter>(context, Converter.class.getName(), null) {

        @Override
        public Converter addingService(ServiceReference<Converter> reference) {
            Converter converter = super.addingService(reference);
            addConverter(converter);
            return converter;
        }

        @Override
        public void removedService(ServiceReference<Converter> reference, Converter service) {
            removeConverter(service);
            super.removedService(reference, service);
        }
    };
}