Examples with ApplicationInfo org.apache.cxf.jaxrs.model.ApplicationInfo used on opensource projects

Example 6 with ApplicationInfo

use of org.apache.cxf.jaxrs.model.ApplicationInfo in project cxf by apache.

the class CXFNonSpringJaxrsServlet method createSingletonInstance.

protected Object createSingletonInstance(Class<?> cls, Map<String, List<String>> props, ServletConfig sc) throws ServletException {
    Constructor<?> c = ResourceUtils.findResourceConstructor(cls, false);
    if (c == null) {
        throw new ServletException("No valid constructor found for " + cls.getName());
    }
    boolean isApplication = Application.class.isAssignableFrom(c.getDeclaringClass());
    try {
        ProviderInfo<? extends Object> provider = null;
        if (c.getParameterTypes().length == 0) {
            if (isApplication) {
                provider = new ApplicationInfo((Application) c.newInstance(), getBus());
            } else {
                provider = new ProviderInfo<Object>(c.newInstance(), getBus(), false, true);
            }
        } else {
            Map<Class<?>, Object> values = new HashMap<>();
            values.put(ServletContext.class, sc.getServletContext());
            values.put(ServletConfig.class, sc);
            provider = ProviderFactory.createProviderFromConstructor(c, values, getBus(), isApplication, true);
        }
        Object instance = provider.getProvider();
        injectProperties(instance, props);
        configureSingleton(instance);
        return isApplication ? provider : instance;
    } catch (InstantiationException ex) {
        ex.printStackTrace();
        throw new ServletException("Resource class " + cls.getName() + " can not be instantiated");
    } catch (IllegalAccessException ex) {
        ex.printStackTrace();
        throw new ServletException("Resource class " + cls.getName() + " can not be instantiated due to IllegalAccessException");
    } catch (InvocationTargetException ex) {
        ex.printStackTrace();
        throw new ServletException("Resource class " + cls.getName() + " can not be instantiated due to InvocationTargetException");
    }
}