import org.osgi.service.http.context.ServletContextHelper; //导入依赖的package包/类
public void start() throws InvalidSyntaxException {
	Filter filter = _bundleContext.createFilter(
		"(&(objectClass=" + ServletContextHelper.class.getName() + ")(" +
			HttpWhiteboardConstants.HTTP_WHITEBOARD_CONTEXT_NAME + "=" + 
			HttpWhiteboardConstants.HTTP_WHITEBOARD_DEFAULT_CONTEXT_NAME +"))");

	_serviceTracker = new ServiceTracker<>(_bundleContext, filter, this);

	_serviceTracker.open();
}
 

import org.osgi.service.http.context.ServletContextHelper; //导入依赖的package包/类
@Override
public Object addingService(
	ServiceReference<ServletContextHelper> reference) {
	
	String contextPath = (String)reference.getProperty(
		HttpWhiteboardConstants.HTTP_WHITEBOARD_CONTEXT_PATH);
	
	CXFNonSpringServlet cxfNonSpringServlet = new CXFNonSpringServlet();

	CXFBusFactory cxfBusFactory =
		(CXFBusFactory) CXFBusFactory.newInstance(
			CXFBusFactory.class.getName());

	Bus bus = cxfBusFactory.createBus();

	Dictionary<String, Object> properties = new Hashtable<>();

	properties.put(
		HttpWhiteboardConstants.HTTP_WHITEBOARD_CONTEXT_SELECT,
		"(" + HttpWhiteboardConstants.HTTP_WHITEBOARD_CONTEXT_NAME + "=" + 
			HttpWhiteboardConstants.HTTP_WHITEBOARD_DEFAULT_CONTEXT_NAME + ")");
	properties.put(
		HttpWhiteboardConstants.HTTP_WHITEBOARD_SERVLET_PATTERN, "/*");
	properties.put(Constants.SERVICE_RANKING, -1);

	cxfNonSpringServlet.setBus(bus);

	_servletServiceRegistration = _bundleContext.registerService(
		Servlet.class, cxfNonSpringServlet, properties);

	properties = new Hashtable<>();

	properties.put(
		HttpWhiteboardConstants.HTTP_WHITEBOARD_CONTEXT_PATH,
		contextPath);

	_busServiceRegistration = _bundleContext.registerService(
		Bus.class, bus, properties);

	return new Object();
}
 

import org.osgi.service.http.context.ServletContextHelper; //导入依赖的package包/类
@Override
public void modifiedService(
	ServiceReference<ServletContextHelper> reference, Object object) {		
}
 

import org.osgi.service.http.context.ServletContextHelper; //导入依赖的package包/类
private static OSGi<ServiceRegistration<Servlet>> registerCXFServletService(
    Bus bus, Map<String, ?> configuration) {

    Map<String, Object> properties = new HashMap<>(configuration);

    properties.putIfAbsent(
        HTTP_WHITEBOARD_TARGET, "(osgi.http.endpoint=*)");

    String address = getApplicationBase(configuration::get);

    if (!address.startsWith("/")) {
        address = "/" + address;
    }

    if (address.endsWith("/")) {
        address = address.substring(0, address.length() - 1);
    }

    String applicationName = getApplicationName(configuration::get);

    HashMap<String, Object> contextProperties = new HashMap<>();

    String contextName;

    if (JAX_RS_DEFAULT_APPLICATION.equals(applicationName)) {
        contextName = HTTP_WHITEBOARD_DEFAULT_CONTEXT_NAME;
    }
    else {
        contextName = "context.for" + applicationName;
    }

    contextProperties.put(HTTP_WHITEBOARD_CONTEXT_NAME, contextName);
    contextProperties.put(HTTP_WHITEBOARD_CONTEXT_PATH, address);

    HashMap<String, Object> servletProperties = new HashMap<>(properties);

    servletProperties.put(
        HTTP_WHITEBOARD_CONTEXT_SELECT,
        format("(%s=%s)", HTTP_WHITEBOARD_CONTEXT_NAME,
            contextProperties.get(HTTP_WHITEBOARD_CONTEXT_NAME)));

    servletProperties.put(
        HTTP_WHITEBOARD_SERVLET_PATTERN, "/*");
    servletProperties.put(
        HTTP_WHITEBOARD_SERVLET_ASYNC_SUPPORTED, true);

    return
        register(
            ServletContextHelper.class,
            new ServletContextHelper() {}, contextProperties).
        then(
        register(Servlet.class, createCXFServlet(bus), servletProperties));
}