Examples of org.apache.catalina.Wrapper

org.apache.catalina.Wrapper
A Wrapper is a Container that represents an individual servlet definition from the deployment descriptor of the web application. It provides a convenient mechanism to use Interceptors that see every single request to the servlet represented by this definition.
Implementations of Wrapper are responsible for managing the servlet life cycle for their underlying servlet class, including calling init() and destroy() at appropriate times, as well as respecting the existence of the SingleThreadModel declaration on the servlet class itself.
The parent Container attached to a Wrapper will generally be an implementation of Context, representing the servlet context (and therefore the web application) within which this servlet executes.
Child Containers are not allowed on Wrapper implementations, so the addChild() method should throw an IllegalArgumentException. @author Craig R. McClanahan @version $Revision: 1.4 $ $Date: 2004/02/27 14:58:39 $


        Context ctx = tomcat.addContext("", docBase.getAbsolutePath());


        AsyncStatusServlet asyncStatusServlet =
            new AsyncStatusServlet(HttpServletResponse.SC_BAD_REQUEST);
        Wrapper wrapper =
            Tomcat.addServlet(ctx, "asyncStatusServlet", asyncStatusServlet);
        wrapper.setAsyncSupported(true);
        ctx.addServletMapping("/asyncStatusServlet", "asyncStatusServlet");


        TesterAccessLogValve alv = new TesterAccessLogValve();
        ctx.getPipeline().addValve(alv);

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        Context ctx = tomcat.addContext("", docBase.getAbsolutePath());


        AsyncErrorServlet asyncErrorServlet =
            new AsyncErrorServlet(HttpServletResponse.SC_BAD_REQUEST, threaded);
        Wrapper wrapper =
            Tomcat.addServlet(ctx, "asyncErrorServlet", asyncErrorServlet);
        wrapper.setAsyncSupported(true);
        ctx.addServletMapping("/asyncErrorServlet", "asyncErrorServlet");


        TesterAccessLogValve alv = new TesterAccessLogValve();
        ctx.getPipeline().addValve(alv);

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        // Must have a real docBase - just use temp
        File docBase = new File(System.getProperty("java.io.tmpdir"));


        Context ctx = tomcat.addContext("", docBase.getAbsolutePath());
        Wrapper a = Tomcat.addServlet(ctx, "ServletA", new Bug53337ServletA());
        a.setAsyncSupported(true);
        Wrapper b = Tomcat.addServlet(ctx, "ServletB", new Bug53337ServletB());
        b.setAsyncSupported(true);
        Tomcat.addServlet(ctx, "ServletC", new Bug53337ServletC());
        ctx.addServletMapping("/ServletA", "ServletA");
        ctx.addServletMapping("/ServletB", "ServletB");
        ctx.addServletMapping("/ServletC", "ServletC");

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        // Must have a real docBase - just use temp
        File docBase = new File(System.getProperty("java.io.tmpdir"));


        Context ctx = tomcat.addContext("", docBase.getAbsolutePath());
        Bug53843ServletA servletA = new Bug53843ServletA();
        Wrapper a = Tomcat.addServlet(ctx, "ServletA", servletA);
        a.setAsyncSupported(true);
        Tomcat.addServlet(ctx, "ServletB", new Bug53843ServletB());


        ctx.addServletMapping("/ServletA", "ServletA");
        ctx.addServletMapping("/ServletB", "ServletB");

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        File docBase = new File(System.getProperty("java.io.tmpdir"));


        Context ctx = tomcat.addContext("", docBase.getAbsolutePath());


        TimeoutServlet timeout = new TimeoutServlet(null, null);
        Wrapper w1 = Tomcat.addServlet(ctx, "time", timeout);
        w1.setAsyncSupported(true);
        ctx.addServletMapping("/async", "time");


        NonAsyncServlet nonAsync = new NonAsyncServlet();
        Wrapper w2 = Tomcat.addServlet(ctx, "nonAsync", nonAsync);
        w2.setAsyncSupported(true);
        ctx.addServletMapping("/error/nonasync", "nonAsync");


        AsyncErrorPage asyncErrorPage = new AsyncErrorPage(mode);
        Wrapper w3 = Tomcat.addServlet(ctx, "asyncErrorPage", asyncErrorPage);
        w3.setAsyncSupported(true);
        ctx.addServletMapping("/error/async", "asyncErrorPage");


        if (asyncError != null) {
            ErrorPage ep = new ErrorPage();
            ep.setErrorCode(500);

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        File docBase = new File(System.getProperty("java.io.tmpdir"));


        Context ctx = tomcat.addContext("", docBase.getAbsolutePath());


        Bug54178ServletA bug54178ServletA = new Bug54178ServletA();
        Wrapper wrapper =
            Tomcat.addServlet(ctx, "bug54178ServletA", bug54178ServletA);
        wrapper.setAsyncSupported(true);
        ctx.addServletMapping("/bug54178ServletA", "bug54178ServletA");


        Bug54178ServletB bug54178ServletB = new Bug54178ServletB();
        Tomcat.addServlet(ctx, "bug54178ServletB", bug54178ServletB);
        ctx.addServletMapping("/bug54178ServletB", "bug54178ServletB");

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        File docBase = new File(System.getProperty("java.io.tmpdir"));


        Context ctx = tomcat.addContext("", docBase.getAbsolutePath());


        NonAsyncServlet nonAsyncServlet = new NonAsyncServlet();
        Wrapper wrapper = Tomcat.addServlet(ctx, "nonAsyncServlet",
                nonAsyncServlet);
        wrapper.setAsyncSupported(true);
        ctx.addServletMapping("/target", "nonAsyncServlet");


        DispatchingGenericServlet forbiddenDispatchingServlet = new DispatchingGenericServlet();
        Wrapper wrapper1 = Tomcat.addServlet(ctx,
                "forbiddenDispatchingServlet", forbiddenDispatchingServlet);
        wrapper1.setAsyncSupported(true);
        ctx.addServletMapping("/forbiddenDispatchingServlet",
                "forbiddenDispatchingServlet");


        tomcat.start();

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        File docBase = new File(System.getProperty("java.io.tmpdir"));


        Context ctx = tomcat.addContext(contextPath, docBase.getAbsolutePath());


        DispatchingGenericServlet dispatch = new DispatchingGenericServlet();
        Wrapper wrapper = Tomcat.addServlet(ctx, "dispatch", dispatch);
        wrapper.setAsyncSupported(true);
        ctx.addServletMapping("/dispatch", "dispatch");


        CustomGenericServlet customGeneric = new CustomGenericServlet();
        Wrapper wrapper2 = Tomcat.addServlet(ctx, "customGeneric",
                customGeneric);
        wrapper2.setAsyncSupported(true);
        ctx.addServletMapping("/target", "customGeneric");


        tomcat.start();
    }

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            if (init)
                return;


            Tomcat tomcat = getTomcatInstance();
            context = tomcat.addContext("", TEMP_DIR);
            Wrapper w;
            w = Tomcat.addServlet(context, servletName,
                                  new AbortedUploadServlet());
            // Tomcat.addServlet does not respect annotations, so we have
            // to set our own MultipartConfigElement.
            // Choose upload file size limit.
            if (limited) {
                w.setMultipartConfigElement(new MultipartConfigElement("",
                        limitSize, -1, -1));
            } else {
                w.setMultipartConfigElement(new MultipartConfigElement(""));
            }
            context.addServletMapping(URI, servletName);
            context.setSwallowAbortedUploads(swallow);


            tomcat.start();

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    @Test
    public void testDetection() throws Exception {
        // second, we test the actual effect of the flag on the startup
        StuckingServlet stuckingServlet = new StuckingServlet(6000L);
        Wrapper servlet = Tomcat.addServlet(context, "myservlet",
                stuckingServlet);
        servlet.addMapping("/myservlet");


        StuckThreadDetectionValve valve = new StuckThreadDetectionValve();
        valve.setThreshold(2);
        context.addValve(valve);
        context.setBackgroundProcessorDelay(1);

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