Examples of javax.servlet.AsyncContext.createListener()

javax.servlet.AsyncContext.createListener()
Instantiates the given {@link AsyncListener} class.
The returned AsyncListener instance may be further customized before it is registered with this AsyncContext via a call to one of the addListener methods.
The given AsyncListener class must define a zero argument constructor, which is used to instantiate it.
This method supports resource injection if the given clazz represents a Managed Bean. See the Java EE platform and JSR 299 specifications for additional details about Managed Beans and resource injection.
This method supports any annotations applicable to AsyncListener. @param clazz the AsyncListener class to instantiate @return the new AsyncListener instance @throws ServletException if the given clazz fails to beinstantiated

public class AsyncFooServlet extends HttpServlet {


    @Override
    protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        final AsyncContext actx = req.startAsync();
        actx.addListener(actx.createListener(QuxAsyncListener.class), req, resp);
        Executors.newSingleThreadExecutor().execute(new Runnable() {
            @Override
            public void run() {
                try {
                    Timer.startNew(100l);

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            return;
        }


        SimpleAsyncListener.reset();
        final AsyncContext actx = req.startAsync();
        actx.addListener(actx.createListener(SimpleAsyncListener.class));
        resp.setContentType("text/plain");


        if (TEST_TIMEOUT.equals(test)) {
            actx.setTimeout(TIMEOUT);
        } else if (TEST_COMPLETE.equals(test)) {

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            return;
        }


        SimpleAsyncListener.reset();
        final AsyncContext actx = req.startAsync();
        actx.addListener(actx.createListener(SimpleAsyncListener.class));
        resp.setContentType("text/plain");


        if (TEST_TIMEOUT.equals(test)) {
            actx.setTimeout(TIMEOUT);
        } else if (TEST_COMPLETE.equals(test)) {

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    protected void doPost(HttpServletRequest req, HttpServletResponse resp)
    throws ServletException, IOException 
    {
        AsyncContext asyncContext = req.startAsync();
        MyAsyncListener listener = asyncContext.createListener(MyAsyncListener.class);


        PrintWriter writer = resp.getWriter();
        writer.println( "<html>");
        writer.println("<HEAD><link rel=\"stylesheet\" type=\"text/css\"  href=\"../stylesheet.css\"/></HEAD>");
        writer.println( "<body>");

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            return;
        }


        statusBean.reset();
        final AsyncContext actx = req.startAsync();
        actx.addListener(actx.createListener(SimpleAsyncListener.class));
        resp.setContentType("text/plain");


        if (TEST_TIMEOUT.equals(test)) {
            actx.setTimeout(TIMEOUT);
        } else if (TEST_COMPLETE.equals(test)) {

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public class AsyncFooServlet extends HttpServlet {


    @Override
    protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        final AsyncContext actx = req.startAsync();
        actx.addListener(actx.createListener(QuxAsyncListener.class), req, resp);
        Executors.newSingleThreadExecutor().execute(new Runnable() {
            @Override
            public void run() {
                try {
                    Thread.sleep(100l);

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            return;
        }


        statusBean.reset();
        final AsyncContext actx = req.startAsync();
        actx.addListener(actx.createListener(SimpleAsyncListener.class));
        resp.setContentType("text/plain");


        if (TEST_TIMEOUT.equals(test)) {
            actx.setTimeout(TIMEOUT);
        } else if (TEST_COMPLETE.equals(test)) {

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            return;
        }


        statusBean.reset();
        final AsyncContext actx = req.startAsync();
        actx.addListener(actx.createListener(SimpleAsyncListener.class));
        resp.setContentType("text/plain");


        if (TEST_TIMEOUT.equals(test)) {
            actx.setTimeout(TIMEOUT);
        } else if (TEST_COMPLETE.equals(test)) {

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        String param = req.getParameter("action");
        String cid = req.getParameter("cid");


        statusBean.reset();
        final AsyncContext actx = req.startAsync();
        actx.addListener(actx.createListener(QuxAsyncListener.class));
        resp.setContentType("text/plain");


        if (TIMEOUT.equals(param)) {
            actx.setTimeout(150l);
        } else if (COMPLETE.equals(param)) {

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            return;
        }


        SimpleAsyncListener.reset();
        final AsyncContext actx = req.startAsync();
        actx.addListener(actx.createListener(SimpleAsyncListener.class));
        resp.setContentType("text/plain");


        if (TEST_TIMEOUT.equals(test)) {
            actx.setTimeout(TIMEOUT);
        } else if (TEST_COMPLETE.equals(test)) {

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