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) $

        // Populate redeploy resources with the WAR file
        deployedApp.redeployResources.put
            (dir.getAbsolutePath(), new Long(dir.lastModified()));


        try {
            Context context = (Context) Class.forName(contextClass).newInstance();
            if (context instanceof Lifecycle) {
                Class clazz = Class.forName(host.getConfigClass());
                LifecycleListener listener =
                    (LifecycleListener) clazz.newInstance();
                ((Lifecycle) context).addLifecycleListener(listener);
            }
            context.setPath(contextPath);
            context.setDocBase(file);
            if (xml.exists()) {
                context.setConfigFile(xml.getAbsolutePath());
                deployedApp.redeployResources.put
                    (xml.getAbsolutePath(), new Long(xml.lastModified()));
            }
            host.addChild(context);
            // If we're unpacking WARs, the docBase will be mutated after
            // starting the context
            if (unpackWARs && (context.getDocBase() != null)) {
                String name = null;
                String path = context.getPath();
                if (path.equals("")) {
                    name = "ROOT";
                } else {
                    if (path.startsWith("/")) {
                        name = path.substring(1);

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        // Deploy the application in this directory
        if( log.isDebugEnabled() ) 
            log.debug(sm.getString("hostConfig.deployDir", file));
        try {
            Context context = (Context) Class.forName(contextClass).newInstance();
            if (context instanceof Lifecycle) {
                Class clazz = Class.forName(host.getConfigClass());
                LifecycleListener listener =
                    (LifecycleListener) clazz.newInstance();
                ((Lifecycle) context).addLifecycleListener(listener);
            }
            context.setPath(contextPath);
            context.setDocBase(file);
            File configFile = new File(dir, Constants.ApplicationContextXml);
            if (deployXML) {
                context.setConfigFile(configFile.getAbsolutePath());
            }
            host.addChild(context);
            deployedApp.redeployResources.put(dir.getAbsolutePath(),
                    new Long(dir.lastModified()));
            if (deployXML) {

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            totalstart = System.currentTimeMillis();
        }
        if (primaryIndicator) {
            createPrimaryIndicator(request) ;
        }
        Context context = request.getContext();
        boolean isCrossContext = context != null
                && context instanceof StandardContext
                && ((StandardContext) context).getCrossContext();
        try {
            if(isCrossContext) {

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        // Notify interested session event listeners
        fireSessionEvent(Session.SESSION_CREATED_EVENT, null);


        // Notify interested application event listeners
        Context context = (Context) manager.getContainer();
        //fix for standalone manager without container
        if (context != null) {
            Object listeners[] = context.getApplicationLifecycleListeners();
            if (listeners != null) {
                HttpSessionEvent event = new HttpSessionEvent(getSession());
                for (int i = 0; i < listeners.length; i++) {
                    if (!(listeners[i] instanceof HttpSessionListener))
                        continue;

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            expiring = true;


            // Notify interested application event listeners
            // FIXME - Assumes we call listeners in reverse order
            Context context = (Context) manager.getContainer();
            //fix for standalone manager without container
            if (context != null) {
                Object listeners[] = context.getApplicationLifecycleListeners();
                if (notify && (listeners != null)) {
                    HttpSessionEvent event = new HttpSessionEvent(getSession());
                    for (int i = 0; i < listeners.length; i++) {
                        int j = (listeners.length - 1) - i;
                        if (!(listeners[j] instanceof HttpSessionListener))

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     */
    public ServletContext getServletContext() {


        if (manager == null)
            return (null);
        Context context = (Context) manager.getContainer();
        if (context == null)
            return (null);
        else
            return (context.getServletContext());


    }

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        //dont notify any listeners
        if (!notify)
            return;


        // Notify interested application event listeners
        Context context = (Context) manager.getContainer();
        //fix for standalone manager without container
        if (context != null) {
            Object listeners[] = context.getApplicationEventListeners();
            if (listeners == null)
                return;
            for (int i = 0; i < listeners.length; i++) {
                if (!(listeners[i] instanceof HttpSessionAttributeListener))
                    continue;

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            } catch (Exception x) {
                log.error(smp.getString("deltaSession.valueUnbound.ex"), x);
            }
        }
        // Notify interested application event listeners
        Context context = (Context) manager.getContainer();
        //fix for standalone manager without container
        if (context != null) {
            Object listeners[] = context.getApplicationEventListeners();
            if (listeners == null)
                return;
            for (int i = 0; i < listeners.length; i++) {
                if (!(listeners[i] instanceof HttpSessionAttributeListener))
                    continue;

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        // Validate the format of the specified argument
        if ((uri == null) || (!uri.startsWith("/")))
            return (null);


        Context child = null;
        try {
            Host host = (Host) context.getParent();
            String mapuri = uri;
            while (true) {
                child = (Context) host.findChild(mapuri);
                if (child != null)
                    break;
                int slash = mapuri.lastIndexOf('/');
                if (slash < 0)
                    break;
                mapuri = mapuri.substring(0, slash);
            }
        } catch (Throwable t) {
            ExceptionUtils.handleThrowable(t);
            return (null);
        }


        if (child == null)
            return (null);


        if (context.getCrossContext()) {
            // If crossContext is enabled, can always return the context
            return child.getServletContext();
        } else if (child == context) {
            // Can still return the current context
            return context.getServletContext();
        } else {
            // Nothing to return

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        final File contextDir = new File(getTemporaryDirectory(), "webappFoo");
        addDeleteOnTearDown(contextDir);
        if (!contextDir.mkdirs() && !contextDir.isDirectory()) {
            fail("Failed to create: [" + contextDir.toString() + "]");
        }
        Context ctx = tomcat.addContext(contextName, contextDir.getAbsolutePath());


        CombinedRealm combinedRealm = new CombinedRealm();
        Realm nullRealm = new NullRealm();
        combinedRealm.addRealm(nullRealm);
        ctx.setRealm(combinedRealm);


        // Disable keep-alive otherwise request processing threads in keep-alive
        // won't shut down fast enough with BIO to de-register the processor
        // triggering a test failure
        tomcat.getConnector().setAttribute("maxKeepAliveRequests", Integer.valueOf(1));

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