Examples of org.apache.catalina.Context

org.apache.catalina.Context
A Context is a Container that represents a servlet context, and therefore an individual web application, in the Catalina servlet engine. It is therefore useful in almost every deployment of Catalina (even if a Connector attached to a web server (such as Apache) uses the web server's facilities to identify the appropriate Wrapper to handle this request. It also provides a convenient mechanism to use Interceptors that see every request processed by this particular web application.
The parent Container attached to a Context is generally a Host, but may be some other implementation, or may be omitted if it is not necessary.
The child containers attached to a Context are generally implementations of Wrapper (representing individual servlet definitions).
@author Craig R. McClanahan @version $Revision: 467222 $ $Date: 2006-10-24 05:17:11 +0200 (Tue, 24 Oct 2006) $

        Tomcat tomcat = getTomcatInstance();


        // 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");


        tomcat.start();


        StringBuilder url = new StringBuilder(48);
        url.append("http://localhost:");

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        Tomcat tomcat = getTomcatInstance();


        // Must have a real docBase - just use temp
        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);
            if (asyncError.booleanValue()) {
                ep.setLocation("/error/async");
            } else {
                ep.setLocation("/error/nonasync");
            }


            ctx.addErrorPage(ep);
        }


        ctx.addApplicationListener(TrackingRequestListener.class.getName());


        TesterAccessLogValve alv = new TesterAccessLogValve();
        ctx.getPipeline().addValve(alv);
        TesterAccessLogValve alvGlobal = new TesterAccessLogValve();
        tomcat.getHost().getPipeline().addValve(alvGlobal);


        tomcat.start();
        ByteChunk res = new ByteChunk();

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        Tomcat tomcat = getTomcatInstance();


        // Must have a real docBase - just use temp
        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");


        tomcat.start();


        ByteChunk body = new ByteChunk();
        int rc = -1;

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        Tomcat tomcat = getTomcatInstance();


        // Must have a real docBase - just use temp
        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();


        try {

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        Tomcat tomcat = getTomcatInstance();


        // Must have a real docBase - just use temp
        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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     */
    @Test
    public void testServletContainerInitializer() throws Exception {
        Tomcat tomcat = getTomcatInstance();


        Context context = tomcat.addContext("/",
                System.getProperty("java.io.tmpdir"));


        context.addServletContainerInitializer(new SCI(), null);
        tomcat.start();
        assertTrue(SCL.initialized);
    }

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     */
    @Test
    public void testServletContextListener() throws Exception {
        Tomcat tomcat = getTomcatInstance();


        Context context = tomcat.addContext("/",
                System.getProperty("java.io.tmpdir"));


        // SCL2 pretends to be in web.xml, and tries to install a
        // ServletContainerInitializer.
        context.addApplicationListener(SCL2.class.getName());
        tomcat.start();


        //check that the ServletContainerInitializer wasn't initialized.
        assertFalse(SCL3.initialized);
    }

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    @Test
    public void testSimple() throws Exception {
        Tomcat tomcat = getTomcatInstance();
        // Must have a real docBase - just use temp
        Context ctx = tomcat.addContext("",
                System.getProperty("java.io.tmpdir"));
        ctx.addApplicationListener(new ApplicationListener(
                TesterEchoServer.Config.class.getName(), false));


        Tomcat.addServlet(ctx, "default", new DefaultServlet());
        ctx.addServletMapping("/", "default");


        tomcat.start();


        WebSocketClient client = new WebSocketClient(getPort());

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    @Test
    public void testDetectWrongVersion() throws Exception {
        Tomcat tomcat = getTomcatInstance();
        // Must have a real docBase - just use temp
        Context ctx = tomcat.addContext("",
                System.getProperty("java.io.tmpdir"));
        ctx.addApplicationListener(new ApplicationListener(
                TesterEchoServer.Config.class.getName(), false));


        Tomcat.addServlet(ctx, "default", new DefaultServlet());
        ctx.addServletMapping("/", "default");


        tomcat.start();


        WebSocketClient client= new WebSocketClient(getPort());

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    @Test
    public void testNoConnection() throws Exception {
        Tomcat tomcat = getTomcatInstance();
        // Must have a real docBase - just use temp
        Context ctx = tomcat.addContext("",
                System.getProperty("java.io.tmpdir"));
        ctx.addApplicationListener(new ApplicationListener(
                TesterEchoServer.Config.class.getName(), false));


        Tomcat.addServlet(ctx, "default", new DefaultServlet());
        ctx.addServletMapping("/", "default");


        tomcat.start();


        WebSocketClient client= new WebSocketClient(getPort());

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