Examples of org.atmosphere.cpr.AtmosphereHandler

org.atmosphere.cpr.AtmosphereHandler

Implementation of {@link AtmosphereHandler} allows creation ofevent-driven web applications which are hosted in the browser. An {@link AtmosphereHandler} allows a web application to suspend and resumean http response. An http response can be suspended {@link AtmosphereResource#suspend()}and later resume via {@link AtmosphereResource#resume()}. Messages can also be shared between suspended response and their associated {@link AtmosphereHandler}using a {@link Broadcaster}. Any invocation of {@link Broadcaster#broadcast(java.lang.Object)}will allow a suspended response to write the content of the message {@link AtmosphereHandler#onStateChange(org.atmosphere.cpr.AtmosphereResourceEvent)}.

A class implementing {@link AtmosphereHandler} must be thread safe

For example, a simple Chat based AtmosphereHandler will take the form of

  public AtmosphereResource<HttpServletRequest, HttpServletResponse> onRequest(AtmosphereResource<HttpServletRequest, HttpServletResponse> event) throws IOException { HttpServletRequest req = event.getRequest(); HttpServletResponse res = event.getResponse(); 
 res.setContentType("text/html"); res.addHeader("Cache-Control", "private"); res.addHeader("Pragma", "no-cache"); if (req.getMethod().equalsIgnoreCase("GET")) { event.suspend(); } else if (req.getMethod().equalsIgnoreCase("POST")) { res.setCharacterEncoding("UTF-8"); String action = req.getParameterValues("action")[0]; String name = req.getParameterValues("name")[0]; 
 if ("login".equals(action)) { event.getBroadcaster().broadcast( BEGIN_SCRIPT_TAG + toJsonp("System Message from " + event.getWebServerName(), name + " has joined.") + END_SCRIPT_TAG); res.getWriter().write("success"); res.getWriter().flush(); } else if ("post".equals(action)) { String message = req.getParameterValues("message")[0]; event.getBroadcaster().broadcast(BEGIN_SCRIPT_TAG + toJsonp(name, message) + END_SCRIPT_TAG); res.getWriter().write("success"); res.getWriter().flush(); } else { res.setStatus(422); 
 res.getWriter().write("success"); res.getWriter().flush(); } } } 
 public AtmosphereResource<HttpServletRequest, HttpServletResponse> onStateChange(AtmosphereResource<HttpServletRequest, HttpServletResponse> event) throws IOException { HttpServletRequest req = event.getRequest(); HttpServletResponse res = event.getResponse(); 
 if (event.isResuming() || event.isResumedOnTimedout()) { String script = BEGIN_SCRIPT_TAG + "window.parent.app.listen();\n" + END_SCRIPT_TAG; 
 res.getWriter().write(script); res.getWriter().flush(); } else { res.getWriter().write(event.getMessage().toString()); res.getWriter().flush(); } }

@author Jeanfrancois Arcand

        final CountDownLatch l = new CountDownLatch(1);


        Config config = new Config.Builder()
                .port(port)
                .host("127.0.0.1")
                .resource("/suspend", new AtmosphereHandler() {


                    private final AtomicBoolean b = new AtomicBoolean(false);


                    @Override
                    public void onRequest(AtmosphereResource r) throws IOException {

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    @Test(enabled = true)
    public void serializeFutureGetTest() throws Exception {
        Config config = new Config.Builder()
                .port(port)
                .host("127.0.0.1")
                .resource("/suspend", new AtmosphereHandler() {


                    private final AtomicInteger count = new AtomicInteger(1);


                    @Override
                    public void onRequest(AtmosphereResource r) throws IOException {

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    @Test
    public void ahcCloseTest() throws IOException, InterruptedException {
        Config config = new Config.Builder()
                .port(port)
                .host("127.0.0.1")
                .resource("/suspend", new AtmosphereHandler() {


                    private final AtomicBoolean b = new AtomicBoolean(false);


                    @Override
                    public void onRequest(AtmosphereResource r) throws IOException {

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        final CountDownLatch closedLatch = new CountDownLatch(1);


        Config config = new Config.Builder()
                .port(port)
                .host("127.0.0.1")
                .resource("/suspend", new AtmosphereHandler() {


                    @Override
                    public void onRequest(AtmosphereResource r) throws IOException {
                        r.addEventListener(new AtmosphereResourceEventListenerAdapter() {
                            @Override

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        final CountDownLatch openedLatch = new CountDownLatch(1);


        Config config = new Config.Builder()
                .port(port)
                .host("127.0.0.1")
                .resource("/suspend", new AtmosphereHandler() {


                    @Override
                    public void onRequest(AtmosphereResource r) throws IOException {
                        r.addEventListener(new AtmosphereResourceEventListenerAdapter() {
                            @Override

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    @Test
    public void ahcCloseTest2() throws IOException, InterruptedException {
        Config config = new Config.Builder()
                .port(port)
                .host("127.0.0.1")
                .resource("/suspend", new AtmosphereHandler() {


                    private final AtomicBoolean b = new AtomicBoolean(false);


                    @Override
                    public void onRequest(AtmosphereResource r) throws IOException {

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            Class<?> aClass = annotatedClass;
            PushEndpoint a = aClass.getAnnotation(PushEndpoint.class);
            List<AtmosphereInterceptor> l = new ArrayList<AtmosphereInterceptor>();


            Object c = framework.newClassInstance(Object.class, aClass);
            AtmosphereHandler handler = framework.newClassInstance(PushEndpointHandlerProxy.class, PushEndpointHandlerProxy.class).configure(framework.getAtmosphereConfig(), c);
            l.add(framework.newClassInstance(AtmosphereInterceptor.class, PushEndpointInterceptor.class));


            Class<? extends Broadcaster> b = (Class<? extends Broadcaster>) IOUtils.loadClass(this.getClass(), framework.getDefaultBroadcasterClassName());


            framework.addAtmosphereHandler(a.value(), handler, broadcaster(framework, b, a.value()), l);

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                String mapping = a.path();


                AnnotationUtil.interceptors(framework, a.interceptors(), l);


                if (!a.dispatch()) {
                    AtmosphereHandler proxy = new AtmosphereServletProcessor() {


                        private String method = "GET";


                        @Override
                        public void onRequest(AtmosphereResource resource) throws IOException {

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                l.add(aa);
            }


            framework.sessionSupport(a.supportSession());


            AtmosphereHandler handler = framework.newClassInstance(AtmosphereHandler.class, annotatedClass);
            for (String s : a.properties()) {
                String[] nv = s.split("=");
                IntrospectionUtils.setProperty(handler, nv[0], nv[1]);
                IntrospectionUtils.addProperty(handler, nv[0], nv[1]);
            }

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            if (aa != null) {
                l.add(aa);
            }


            Object c = framework.newClassInstance(Object.class, aClass);
            AtmosphereHandler handler = framework.newClassInstance(ManagedAtmosphereHandler.class,
                    ManagedAtmosphereHandler.class).configure(framework.getAtmosphereConfig(), c);
            // MUST BE ADDED FIRST, ALWAYS!
            l.add(framework.newClassInstance(AtmosphereInterceptor.class, ManagedServiceInterceptor.class));


            framework.filterManipulator(new BroadcasterConfig.FilterManipulator() {

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Related Classes of org.atmosphere.cpr.AtmosphereHandler

org.atmosphere.annotation.AtmosphereHandlerServiceProcessor

org.atmosphere.annotation.AtmosphereServiceProcessor

org.atmosphere.annotation.ManagedServiceProcessor

org.atmosphere.nettosphere.test.NettyAtmosphereTest

org.atmosphere.socketio.cpr.SocketIOAtmosphereInterceptor

org.atmosphere.tests.BaseTest

org.atmosphere.tests.LongPollingTest

org.atmosphere.tests.SSETest

org.atmosphere.tests.TypedTest

org.barjo.atmosgi.internal.AtmosphereHandlerTracker

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