Package javax.servlet

Examples of javax.servlet.Servlet


        PrintStream out = System.out;
        if (swallowOutput) {
            SystemLogHandler.startCapture();
        }

        Servlet servlet;
        try {
            long t1=System.currentTimeMillis();
            // If this "servlet" is really a JSP file, get the right class.
            // HOLD YOUR NOSE - this is a kludge that avoids having to do special
            // case Catalina-specific code in Jasper - it also requires that the
            // servlet path be replaced by the <jsp-file> element content in
            // order to be completely effective
            String actualClass = servletClass;
            if ((actualClass == null) && (jspFile != null)) {
                Wrapper jspWrapper = (Wrapper)
                    ((Context) getParent()).findChild(Constants.JSP_SERVLET_NAME);
                if (jspWrapper != null) {
                    actualClass = jspWrapper.getServletClass();
                    // Merge init parameters
                    String paramNames[] = jspWrapper.findInitParameters();
                    for (int i = 0; i < paramNames.length; i++) {
                        if (parameters.get(paramNames[i]) == null) {
                            parameters.put
                                (paramNames[i],
                                 jspWrapper.findInitParameter(paramNames[i]));
                        }
                    }
                }
            }

            // Complain if no servlet class has been specified
            if (actualClass == null) {
                unavailable(null);
                throw new ServletException
                    (sm.getString("standardWrapper.notClass", getName()));
            }

            // Acquire an instance of the class loader to be used
            Loader loader = getLoader();
            if (loader == null) {
                unavailable(null);
                throw new ServletException
                    (sm.getString("standardWrapper.missingLoader", getName()));
            }

            ClassLoader classLoader = loader.getClassLoader();

            // Special case class loader for a container provided servlet
            // 
            if (isContainerProvidedServlet(actualClass) &&
                    ! ((Context)getParent()).getPrivileged() ) {
                // If it is a priviledged context - using its own
                // class loader will work, since it's a child of the container
                // loader
                classLoader = this.getClass().getClassLoader();
            }

            // Load the specified servlet class from the appropriate class loader
            Class classClass = null;
            try {
                if (SecurityUtil.isPackageProtectionEnabled()){
                    final ClassLoader fclassLoader = classLoader;
                    final String factualClass = actualClass;
                    try{
                        classClass = (Class)AccessController.doPrivileged(
                                new PrivilegedExceptionAction(){
                                    public Object run() throws Exception{
                                        if (fclassLoader != null) {
                                            return fclassLoader.loadClass(factualClass);
                                        } else {
                                            return Class.forName(factualClass);
                                        }
                                    }
                        });
                    } catch(PrivilegedActionException pax){
                        Exception ex = pax.getException();
                        if (ex instanceof ClassNotFoundException){
                            throw (ClassNotFoundException)ex;
                        } else {
                            getServletContext().log( "Error loading "
                                + fclassLoader + " " + factualClass, ex );
                        }
                    }
                } else {
                    if (classLoader != null) {
                        classClass = classLoader.loadClass(actualClass);
                    } else {
                        classClass = Class.forName(actualClass);
                    }
                }
            } catch (ClassNotFoundException e) {
                unavailable(null);
                getServletContext().log( "Error loading " + classLoader + " " + actualClass, e );
                throw new ServletException
                    (sm.getString("standardWrapper.missingClass", actualClass),
                     e);
            }

            if (classClass == null) {
                unavailable(null);
                throw new ServletException
                    (sm.getString("standardWrapper.missingClass", actualClass));
            }

            // Instantiate and initialize an instance of the servlet class itself
            try {
                servlet = (Servlet) classClass.newInstance();
                // Annotation processing
                if (!((Context) getParent()).getIgnoreAnnotations()) {
                    if (getParent() instanceof StandardContext) {
                       ((StandardContext)getParent()).getAnnotationProcessor().processAnnotations(servlet);
                       ((StandardContext)getParent()).getAnnotationProcessor().postConstruct(servlet);
                    }
                }
            } catch (ClassCastException e) {
                unavailable(null);
                // Restore the context ClassLoader
                throw new ServletException
                    (sm.getString("standardWrapper.notServlet", actualClass), e);
            } catch (Throwable e) {
                unavailable(null);
             
                // Added extra log statement for Bugzilla 36630:
                // http://issues.apache.org/bugzilla/show_bug.cgi?id=36630
                if(log.isDebugEnabled()) {
                    log.debug(sm.getString("standardWrapper.instantiate", actualClass), e);
                }

                // Restore the context ClassLoader
                throw new ServletException
                    (sm.getString("standardWrapper.instantiate", actualClass), e);
            }

            // Check if loading the servlet in this web application should be
            // allowed
            if (!isServletAllowed(servlet)) {
                throw new SecurityException
                    (sm.getString("standardWrapper.privilegedServlet",
                                  actualClass));
            }

            // Special handling for ContainerServlet instances
            if ((servlet instanceof ContainerServlet) &&
                  (isContainerProvidedServlet(actualClass) ||
                    ((Context)getParent()).getPrivileged() )) {
                ((ContainerServlet) servlet).setWrapper(this);
            }

            classLoadTime=(int) (System.currentTimeMillis() -t1);
            // Call the initialization method of this servlet
            try {
                instanceSupport.fireInstanceEvent(InstanceEvent.BEFORE_INIT_EVENT,
                                                  servlet);

                if( Globals.IS_SECURITY_ENABLED) {

                    Object[] args = new Object[]{((ServletConfig)facade)};
                    SecurityUtil.doAsPrivilege("init",
                                               servlet,
                                               classType,
                                               args);
                    args = null;
                } else {
                    servlet.init(facade);
                }

                // Invoke jspInit on JSP pages
                if ((loadOnStartup >= 0) && (jspFile != null)) {
                    // Invoking jspInit
                    DummyRequest req = new DummyRequest();
                    req.setServletPath(jspFile);
                    req.setQueryString(Constants.PRECOMPILE + "=true");
                    DummyResponse res = new DummyResponse();

                    if( Globals.IS_SECURITY_ENABLED) {
                        Object[] args = new Object[]{req, res};
                        SecurityUtil.doAsPrivilege("service",
                                                   servlet,
                                                   classTypeUsedInService,
                                                   args);
                        args = null;
                    } else {
                        servlet.service(req, res);
                    }
                }
                instanceSupport.fireInstanceEvent(InstanceEvent.AFTER_INIT_EVENT,
                                                  servlet);
            } catch (UnavailableException f) {
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        instance = null;

        if (singleThreadModel && (instancePool != null)) {
            try {
                while (!instancePool.isEmpty()) {
                    Servlet s = (Servlet) instancePool.pop();
                    if (Globals.IS_SECURITY_ENABLED) {
                        SecurityUtil.doAsPrivilege("destroy", s);
                        SecurityUtil.remove(instance);                          
                    } else {
                        s.destroy();
                    }
                    // Annotation processing
                    if (!((Context) getParent()).getIgnoreAnnotations()) {
                       ((StandardContext)getParent()).getAnnotationProcessor().preDestroy(s);
                    }
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        if (application != null) {
            return;
        }

        // Get the invokers for the supported operations
        Servlet servlet = null;
        Invoker bindingInvoker = bindingChain.getHeadInvoker();
        bindingListenerServlet = new RESTBindingListenerServlet(binding, bindingInvoker, messageFactory);
        for (InvocationChain invocationChain : endpoint.getInvocationChains()) {

            Operation operation = invocationChain.getTargetOperation();
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            return null;
        }

        // Remove the Servlet mapping for the given Servlet
        ServletHandler servletHandler = port.getServletHandler();
        Servlet servlet = null;
        List<ServletMapping> mappings =
            new ArrayList<ServletMapping>(Arrays.asList(servletHandler.getServletMappings()));
        String path = uri.getPath();

        if (!path.startsWith("/")) {
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            return null;
        }

        // Remove the Servlet mapping for the given Servlet
        ServletHandler servletHandler = port.getServletHandler();
        Servlet removedServlet = null;
        List<ServletMapping> mappings =
            new ArrayList<ServletMapping>(Arrays.asList(servletHandler.getServletMappings()));
        String path = uri.getPath();

        if (!path.startsWith("/")) {
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            suri = contextPath + suri;
        }

        // In a webapp just use the given path and ignore the host and port
        // as they are fixed by the Web container
        Servlet servlet = servlets.remove(suri);
        /*
        if (servlet != null) {
            servlet.destroy();
        }
        */
 
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        if (!suri.startsWith(contextPath)) {
            suri = contextPath + suri;
        }

        // Get the Servlet mapped to the given path
        Servlet servlet = servlets.get(suri);
        return servlet;
    }
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        if (contextPath != null && contextPath.length() > 0 && !"/".equals(contextPath)) {
            suri = contextPath + suri;
        }

        // Get the Servlet mapped to the given path
        Servlet servlet = servlets.get(suri);
        if (servlet != null) {
            return new WebAppRequestDispatcher(suri, servlet);
        }

        for (Map.Entry<String, Servlet> entry : servlets.entrySet()) {
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            oldCCL = null;
        }

        // Initialize local variables we may need
        HttpServletResponse hresponse = (HttpServletResponse) response;
        Servlet servlet = null;
        IOException ioException = null;
        ServletException servletException = null;
        RuntimeException runtimeException = null;
        boolean unavailable = false;
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        PrintStream out = System.out;
        if (swallowOutput) {
            SystemLogHandler.startCapture();
        }

        Servlet servlet;
        try {
            long t1=System.currentTimeMillis();
            // If this "servlet" is really a JSP file, get the right class.
            // HOLD YOUR NOSE - this is a kludge that avoids having to do special
            // case Catalina-specific code in Jasper - it also requires that the
            // servlet path be replaced by the <jsp-file> element content in
            // order to be completely effective
            String actualClass = servletClass;
            if ((actualClass == null) && (jspFile != null)) {
                Wrapper jspWrapper = (Wrapper)
                    ((Context) getParent()).findChild(Constants.JSP_SERVLET_NAME);
                if (jspWrapper != null)
                    actualClass = jspWrapper.getServletClass();
            }

            // Complain if no servlet class has been specified
            if (actualClass == null) {
                unavailable(null);
                throw new ServletException
                    (sm.getString("standardWrapper.notClass", getName()));
            }

            // Acquire an instance of the class loader to be used
            Loader loader = getLoader();
            if (loader == null) {
                unavailable(null);
                throw new ServletException
                    (sm.getString("standardWrapper.missingLoader", getName()));
            }

            ClassLoader classLoader = loader.getClassLoader();

            // Special case class loader for a container provided servlet
            // 
            if (isContainerProvidedServlet(actualClass) &&
                    ! ((Context)getParent()).getPrivileged() ) {
                // If it is a priviledged context - using its own
                // class loader will work, since it's a child of the container
                // loader
                classLoader = this.getClass().getClassLoader();
            }

            // Load the specified servlet class from the appropriate class loader
            Class classClass = null;
            try {
                if (System.getSecurityManager() != null){
                    final ClassLoader fclassLoader = classLoader;
                    final String factualClass = actualClass;
                    try{
                        classClass = (Class)AccessController.doPrivileged(
                                new PrivilegedExceptionAction(){
                                    public Object run() throws Exception{
                                        if (fclassLoader != null) {
                                            return fclassLoader.loadClass(factualClass);
                                        } else {
                                            return Class.forName(factualClass);
                                        }
                                    }
                        });
                    } catch(PrivilegedActionException pax){
                        Exception ex = pax.getException();
                        if (ex instanceof ClassNotFoundException){
                            throw (ClassNotFoundException)ex;
                        } else {
                            getServletContext().log( "Error loading "
                                + fclassLoader + " " + factualClass, ex );
                        }
                    }
                } else {
                    if (classLoader != null) {
                        classClass = classLoader.loadClass(actualClass);
                    } else {
                        classClass = Class.forName(actualClass);
                    }
                }
            } catch (ClassNotFoundException e) {
                unavailable(null);


                getServletContext().log( "Error loading " + classLoader + " " + actualClass, e );
                throw new ServletException
                    (sm.getString("standardWrapper.missingClass", actualClass),
                     e);
            }

            if (classClass == null) {
                unavailable(null);
                throw new ServletException
                    (sm.getString("standardWrapper.missingClass", actualClass));
            }

            // Instantiate and initialize an instance of the servlet class itself
            try {
                servlet = (Servlet) classClass.newInstance();
            } catch (ClassCastException e) {
                unavailable(null);
                // Restore the context ClassLoader
                throw new ServletException
                    (sm.getString("standardWrapper.notServlet", actualClass), e);
            } catch (Throwable e) {
                unavailable(null);
                // Restore the context ClassLoader
                throw new ServletException
                    (sm.getString("standardWrapper.instantiate", actualClass), e);
            }

            // Check if loading the servlet in this web application should be
            // allowed
            if (!isServletAllowed(servlet)) {
                throw new SecurityException
                    (sm.getString("standardWrapper.privilegedServlet",
                                  actualClass));
            }

            // Special handling for ContainerServlet instances
            if ((servlet instanceof ContainerServlet) &&
                  (isContainerProvidedServlet(actualClass) ||
                    ((Context)getParent()).getPrivileged() )) {
                ((ContainerServlet) servlet).setWrapper(this);
            }

            classLoadTime=(int) (System.currentTimeMillis() -t1);
            // Call the initialization method of this servlet
            try {
                instanceSupport.fireInstanceEvent(InstanceEvent.BEFORE_INIT_EVENT,
                                                  servlet);

                if( System.getSecurityManager() != null) {
                    Class[] classType = new Class[]{ServletConfig.class};
                    Object[] args = new Object[]{((ServletConfig)facade)};
                    SecurityUtil.doAsPrivilege("init",
                                               servlet,
                                               classType,
                                               args);
                } else {
                    servlet.init(facade);
                }

                // Invoke jspInit on JSP pages
                if ((loadOnStartup >= 0) && (jspFile != null)) {
                    // Invoking jspInit
                    DummyRequest req = new DummyRequest();
                    req.setServletPath(jspFile);
                    req.setQueryString("jsp_precompile=true");
                    DummyResponse res = new DummyResponse();

                    if( System.getSecurityManager() != null) {
                        Class[] classType = new Class[]{ServletRequest.class,
                                                        ServletResponse.class};
                        Object[] args = new Object[]{req, res};
                        SecurityUtil.doAsPrivilege("service",
                                                   servlet,
                                                   classType,
                                                   args);
                    } else {
                        servlet.service(req, res);
                    }
                }
                instanceSupport.fireInstanceEvent(InstanceEvent.AFTER_INIT_EVENT,
                                                  servlet);
            } catch (UnavailableException f) {
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Related Classes of javax.servlet.Servlet

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