Example usage for javax.servlet UnavailableException UnavailableException

List of usage examples for javax.servlet UnavailableException UnavailableException

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  6. UnavailableException

Introduction

In this page you can find the example usage for javax.servlet UnavailableException UnavailableException.

Prototype


public UnavailableException(String msg)

Source Link

Document

Constructs a new exception with a descriptive message indicating that the servlet is permanently unavailable.

Usage

From source file:com.boylesoftware.web.impl.UserInputControllerMethodArgHandler.java

/**
 * Create new handler.//w ww .  java2s.c om
 *
 * @param validatorFactory Validator factory.
 * @param beanClass User input bean class.
 * @param validationGroups Validation groups to apply during bean
 * validation, or empty array to use the default group.
 *
 * @throws UnavailableException If an error happens.
 */
UserInputControllerMethodArgHandler(final ValidatorFactory validatorFactory, final Class<?> beanClass,
        final Class<?>[] validationGroups) throws UnavailableException {

    this.validatorFactory = validatorFactory;

    this.beanClass = beanClass;
    this.validationGroups = validationGroups;

    try {
        final BeanInfo beanInfo = Introspector.getBeanInfo(this.beanClass);
        final PropertyDescriptor[] propDescs = beanInfo.getPropertyDescriptors();
        final List<FieldDesc> beanFields = new ArrayList<>();
        for (final PropertyDescriptor propDesc : propDescs) {
            final String propName = propDesc.getName();
            final Class<?> propType = propDesc.getPropertyType();
            final Method propGetter = propDesc.getReadMethod();
            final Method propSetter = propDesc.getWriteMethod();

            if ((propGetter == null) || (propSetter == null))
                continue;

            Field propField = null;
            for (Class<?> c = this.beanClass; !c.equals(Object.class); c = c.getSuperclass()) {
                try {
                    propField = c.getDeclaredField(propName);
                    break;
                } catch (final NoSuchFieldException e) {
                    // nothing, continue the loop
                }
            }
            final boolean noTrim = (((propField != null) && propField.isAnnotationPresent(NoTrim.class))
                    || (propGetter.isAnnotationPresent(NoTrim.class)));

            Class<? extends Binder> binderClass = null;
            String format = null;
            String errorMessage = Bind.DEFAULT_MESSAGE;
            Bind bindAnno = null;
            if (propField != null)
                bindAnno = propField.getAnnotation(Bind.class);
            if (bindAnno == null)
                bindAnno = propGetter.getAnnotation(Bind.class);
            if (bindAnno != null) {
                binderClass = bindAnno.binder();
                format = bindAnno.format();
                errorMessage = bindAnno.message();
            }
            if (binderClass == null) {
                if ((String.class).isAssignableFrom(propType))
                    binderClass = StringBinder.class;
                else if ((Boolean.class).isAssignableFrom(propType) || propType.equals(Boolean.TYPE))
                    binderClass = BooleanBinder.class;
                else if ((Integer.class).isAssignableFrom(propType) || propType.equals(Integer.TYPE))
                    binderClass = IntegerBinder.class;
                else if (propType.isEnum())
                    binderClass = EnumBinder.class;
                else // TODO: add more standard binders
                    throw new UnavailableException(
                            "Unsupported user input bean field type " + propType.getName() + ".");
            }

            beanFields.add(new FieldDesc(propDesc, noTrim, binderClass.newInstance(), format, errorMessage));
        }
        this.beanFields = beanFields.toArray(new FieldDesc[beanFields.size()]);
    } catch (final IntrospectionException e) {
        this.log.error("error introspecting user input bean", e);
        throw new UnavailableException("Specified user input bean" + " class could not be introspected.");
    } catch (final IllegalAccessException | InstantiationException e) {
        this.log.error("error instatiating binder", e);
        throw new UnavailableException("Used user input bean field binder" + " could not be instantiated.");
    }

    this.beanPool = new FastPool<>(new PoolableObjectFactory<PoolableUserInput>() {

        @Override
        public PoolableUserInput makeNew(final FastPool<PoolableUserInput> pool, final int pooledObjectId) {

            try {
                return new PoolableUserInput(pool, pooledObjectId, beanClass.newInstance());
            } catch (final InstantiationException | IllegalAccessException e) {
                throw new RuntimeException("Error instatiating user input bean.", e);
            }
        }
    }, "UserInputBeansPool_" + beanClass.getSimpleName());
}

From source file:net.lightbody.bmp.proxy.jetty.jetty.servlet.XMLConfiguration.java

protected void initialize(XmlParser.Node config) throws ClassNotFoundException, UnavailableException {
    Iterator iter = config.iterator();
    XmlParser.Node node = null;/*from w  ww  .j av a  2s .  c o m*/
    while (iter.hasNext()) {
        try {
            Object o = iter.next();
            if (!(o instanceof XmlParser.Node))
                continue;
            node = (XmlParser.Node) o;
            String name = node.getTag();
            initWebXmlElement(name, node);
        } catch (ClassNotFoundException e) {
            throw e;
        } catch (Exception e) {
            log.warn("Configuration problem at " + node, e);
            throw new UnavailableException("Configuration problem");
        }
    }
}

From source file:net.lightbody.bmp.proxy.jetty.jetty.servlet.ServletHolder.java

/** Service a request with this servlet.
 *//*from www.jav  a2  s  .  c o m*/
public void handle(ServletRequest request, ServletResponse response)
        throws ServletException, UnavailableException, IOException {
    if (_class == null)
        throw new UnavailableException("Servlet Not Initialized");

    Servlet servlet = (!_initOnStartup || _servlets != null) ? getServlet() : _servlet;
    if (servlet == null)
        throw new UnavailableException("Could not instantiate " + _class);

    // Service the request
    boolean servlet_error = true;
    Principal user = null;
    HttpRequest http_request = null;
    try {
        // Handle aliased path
        if (_forcedPath != null)
            // TODO complain about poor naming to the Jasper folks
            request.setAttribute("org.apache.catalina.jsp_file", _forcedPath);

        // Handle run as
        if (_runAs != null && _realm != null) {
            http_request = getHttpContext().getHttpConnection().getRequest();
            user = _realm.pushRole(http_request.getUserPrincipal(), _runAs);
            http_request.setUserPrincipal(user);
        }

        servlet.service(request, response);
        servlet_error = false;
    } catch (UnavailableException e) {
        if (_servlets != null && servlet != null)
            stop();
        makeUnavailable(e);
    } finally {
        // pop run-as role
        if (_runAs != null && _realm != null && user != null) {
            user = _realm.popRole(user);
            http_request.setUserPrincipal(user);
        }

        // Handle error params.
        if (servlet_error)
            request.setAttribute("javax.servlet.error.servlet_name", getName());

        // Return to singleThreaded pool
        synchronized (this) {
            if (_servlets != null && servlet != null)
                _servlets.push(servlet);
        }
    }
}

From source file:com.boylesoftware.web.AbstractWebApplication.java

/**
 * Get web-application object for the specified servlet context. The method
 * can be used in custom application components that run outside controllers
 * (controllers can get the application object as a controller method
 * argument), such as JSP views./*from   www  . ja v a 2 s . c  o  m*/
 *
 * @param sc The servlet context.
 *
 * @return The web-application object.
 *
 * @throws UnavailableException If web-application object is not available
 * for the specified servlet context.
 */
public static AbstractWebApplication getApplication(final ServletContext sc) throws UnavailableException {

    final AbstractWebApplication webapp = (AbstractWebApplication) sc.getAttribute(WEBAPP_ATTNAME);
    if (webapp == null)
        throw new UnavailableException("WebApplication listener has not been configured.");

    return webapp;
}

From source file:org.apache.click.extras.spring.SpringClickServlet.java

/**
 * Initialize the SpringClickServlet and the Spring application context
 * bean factory. An Spring <tt>ClassPathXmlApplicationContext</tt> bean
 * factory is used and initialize with the servlet <tt>init-param</tt>
 * named <tt>"spring-path"</tt>.
 *
 * @see ClickServlet#init()//from  w  ww. jav a2 s  .c  om
 *
 * @throws ServletException if the click app could not be initialized
 */
@Override
public void init() throws ServletException {
    super.init();

    ServletContext servletContext = getServletContext();
    applicationContext = WebApplicationContextUtils.getWebApplicationContext(servletContext);

    if (applicationContext == null) {
        String springPath = getInitParameter(SPRING_PATH);
        if (springPath == null) {
            String msg = SPRING_PATH + " servlet init parameter not defined";
            throw new UnavailableException(msg);
        }

        applicationContext = new ClassPathXmlApplicationContext(springPath);
    }

    String injectPageBeans = getInitParameter(INJECT_PAGE_BEANS);
    if ("true".equalsIgnoreCase(injectPageBeans)) {

        // Process page classes looking for setter methods which match beans
        // available in the applicationContext
        List<Class<? extends Page>> pageClassList = getConfigService().getPageClassList();
        for (Class<? extends Page> pageClass : pageClassList) {
            loadSpringBeanSetterMethods(pageClass);
        }
    }
}

From source file:com.boylesoftware.web.AbstractWebApplication.java

/**
 * Get user record handler used by the authentication service. This method
 * is called once during the application initialization.
 *
 * <p>Since there is no generic user record handler implementation, this
 * method, unless overridden, throws an {@link UnavailableException}, so
 * that if the application uses an authentication service that works with
 * persistent user account records, it must override this method and provide
 * an application-specific implementation of the user record handler.
 *
 * @param sc Servlet context./*w w  w .  j  a  va 2 s.  c o  m*/
 * @param config Application configuration.
 *
 * @return User record handler.
 *
 * @throws UnavailableException If user record handler is unavailable.
 * Throwing this exception makes the web-application fail to start.
 */
@SuppressWarnings("unused")
protected UserRecordHandler<?> getUserRecordHandler(final ServletContext sc,
        final ApplicationConfiguration config) throws UnavailableException {

    throw new UnavailableException("Application uses user record"
            + " authentication service implementation, but user record" + " handler is not provided.");
}

From source file:com.adito.core.CoreServlet.java

public void init() throws ServletException {
    pastInitialisation = false;/*from  www . ja va2 s  .com*/

    try {

        ContextHolder.getContext().addContextListener(this);

        if (SystemProperties.get("adito.disableNewSSLEngine", "false").equals("true"))
            SSLTransportFactory.setTransportImpl(SSLTransportImpl.class);

        // Init bouncy castle
        Class c = Class.forName("org.bouncycastle.jce.provider.BouncyCastleProvider");
        Security.insertProviderAt((Provider) c.newInstance(), 0);

        // Start the database
        // TODO this should be configurable
        dbServer = new EmbeddedHSQLDBServer(
                "true".equalsIgnoreCase(SystemProperties.get("adito.hsqldb.tcpipServer", "false")));

        // Load the property classes
        PropertyClassManager.getInstance().registerPropertyClass(new ProfileProperties());
        PropertyClassManager.getInstance().registerPropertyClass(new SystemConfiguration());
        PropertyClassManager.getInstance().registerPropertyClass(new UserAttributes());
        PropertyClassManager.getInstance().registerPropertyClass(new PolicyAttributes());
        PropertyClassManager.getInstance().registerPropertyClass(new RealmProperties());
        PropertyClassManager.getInstance().registerPropertyClass(new ApplicationParameters());
        PropertyClassManager.getInstance().registerPropertyClass(new ResourceAttributes());

        // Load the property database and categories
        // Use the default system database if no other has been registered
        try {
            ProfilesFactory.getInstance().open(this);
        } catch (Exception e) {
            log.error("Failed to initialise property database.", e);
            throw new ServletException("Failed to initialise system database.", e);
        }

        bootProgressMonitor = ContextHolder.getContext().getBootProgressMonitor();

        // Initialise extensions
        bootProgressMonitor.updateMessage("Initialising extensions");
        bootProgressMonitor.updateProgress(10);
        initExtensionStore();

        // Initialise core
        bootProgressMonitor.updateMessage("Initialising core");
        bootProgressMonitor.updateProgress(20);
        initInternal();
        initOther();
        initServlet();

        getServletContext().setAttribute(Globals.ACTION_SERVLET_KEY, this);
        initModuleConfigFactory();
        // Initialize modules as needed
        ModuleConfig moduleConfig = initModuleConfig("", config);
        initCore();

        // Start extensions
        bootProgressMonitor.updateMessage("Starting extensions");
        bootProgressMonitor.updateProgress(30);
        startExtensions();

        // Update module configuration
        bootProgressMonitor.updateMessage("Updating configuration");
        bootProgressMonitor.updateProgress(40);
        initModuleMessageResources(moduleConfig);
        initModuleDataSources(moduleConfig);
        initModulePlugIns(moduleConfig);

        // Start extensions
        bootProgressMonitor.updateMessage("Activating core");
        bootProgressMonitor.updateProgress(45);
        activateCore();

        // do not freeze, we want to be able to dynamically change struts
        // configuration
        // moduleConfig.freeze();

        bootProgressMonitor.updateMessage("Finalising configuration");
        bootProgressMonitor.updateProgress(85);
        Enumeration names = getServletConfig().getInitParameterNames();
        while (names.hasMoreElements()) {
            String name = (String) names.nextElement();
            if (!name.startsWith("moduleConfig/")) {
                continue;
            }
            String prefix = name.substring(6);
            moduleConfig = initModuleConfig(prefix, getServletConfig().getInitParameter(name));
            initModuleMessageResources(moduleConfig);
            initModuleDataSources(moduleConfig);
            initModulePlugIns(moduleConfig);
            // do not freeze, we want to be able to dynamically change
            // struts configuration
            // moduleConfig.freeze();
        }

        this.initModulePrefixes(this.getServletContext());
        this.destroyConfigDigester();

        fireCoreEvent(new CoreEvent(this, CoreEventConstants.SERVER_STARTED, null, null));

    } catch (UnavailableException ex) {
        throw ex;
    } catch (Throwable t) {

        // The follow error message is not retrieved from internal message
        // resources as they may not have been able to have been
        // initialized
        log.error("Failed to initialise core.", t);
        throw new UnavailableException(t.getMessage());
    } finally {
        pastInitialisation = true;
    }
}

From source file:com.sslexplorer.core.CoreServlet.java

public void init() throws ServletException {
    pastInitialisation = false;//from www  . j  a v a  2  s .  c om

    try {

        ContextHolder.getContext().addContextListener(this);

        if (SystemProperties.get("sslexplorer.disableNewSSLEngine", "false").equals("true"))
            SSLTransportFactory.setTransportImpl(SSLTransportImpl.class);

        // Init bouncy castle
        Class c = Class.forName("org.bouncycastle.jce.provider.BouncyCastleProvider");
        Security.insertProviderAt((Provider) c.newInstance(), 0);

        // Start the database
        // TODO this should be configurable
        dbServer = new EmbeddedHSQLDBServer(
                "true".equalsIgnoreCase(SystemProperties.get("sslexplorer.hsqldb.tcpipServer", "false")));

        // Load the property classes
        PropertyClassManager.getInstance().registerPropertyClass(new ProfileProperties());
        PropertyClassManager.getInstance().registerPropertyClass(new SystemConfiguration());
        PropertyClassManager.getInstance().registerPropertyClass(new UserAttributes());
        PropertyClassManager.getInstance().registerPropertyClass(new PolicyAttributes());
        PropertyClassManager.getInstance().registerPropertyClass(new RealmProperties());
        PropertyClassManager.getInstance().registerPropertyClass(new ApplicationParameters());
        PropertyClassManager.getInstance().registerPropertyClass(new ResourceAttributes());

        // Load the property database and categories
        // Use the default system database if no other has been registered
        try {
            ProfilesFactory.getInstance().open(this);
        } catch (Exception e) {
            log.error("Failed to initialise property database.", e);
            throw new ServletException("Failed to initialise system database.", e);
        }

        bootProgressMonitor = ContextHolder.getContext().getBootProgressMonitor();

        // Initialise extensions
        bootProgressMonitor.updateMessage("Initialising extensions");
        bootProgressMonitor.updateProgress(10);
        initExtensionStore();

        // Initialise core
        bootProgressMonitor.updateMessage("Initialising core");
        bootProgressMonitor.updateProgress(20);
        initInternal();
        initOther();
        initServlet();

        getServletContext().setAttribute(Globals.ACTION_SERVLET_KEY, this);
        initModuleConfigFactory();
        // Initialize modules as needed
        ModuleConfig moduleConfig = initModuleConfig("", config);
        initCore();

        // Start extensions
        bootProgressMonitor.updateMessage("Starting extensions");
        bootProgressMonitor.updateProgress(30);
        startExtensions();

        // Update module configuration
        bootProgressMonitor.updateMessage("Updating configuration");
        bootProgressMonitor.updateProgress(40);
        initModuleMessageResources(moduleConfig);
        initModuleDataSources(moduleConfig);
        initModulePlugIns(moduleConfig);

        // Start extensions
        bootProgressMonitor.updateMessage("Activating core");
        bootProgressMonitor.updateProgress(45);
        activateCore();

        // do not freeze, we want to be able to dynamically change struts
        // configuration
        // moduleConfig.freeze();

        bootProgressMonitor.updateMessage("Finalising configuration");
        bootProgressMonitor.updateProgress(85);
        Enumeration names = getServletConfig().getInitParameterNames();
        while (names.hasMoreElements()) {
            String name = (String) names.nextElement();
            if (!name.startsWith("moduleConfig/")) {
                continue;
            }
            String prefix = name.substring(6);
            moduleConfig = initModuleConfig(prefix, getServletConfig().getInitParameter(name));
            initModuleMessageResources(moduleConfig);
            initModuleDataSources(moduleConfig);
            initModulePlugIns(moduleConfig);
            // do not freeze, we want to be able to dynamically change
            // struts configuration
            // moduleConfig.freeze();
        }

        this.initModulePrefixes(this.getServletContext());
        this.destroyConfigDigester();

        fireCoreEvent(new CoreEvent(this, CoreEventConstants.SERVER_STARTED, null, null));

    } catch (UnavailableException ex) {
        throw ex;
    } catch (Throwable t) {

        // The follow error message is not retrieved from internal message
        // resources as they may not have been able to have been
        // initialized
        log.error("Failed to initialise core.", t);
        throw new UnavailableException(t.getMessage());
    } finally {
        pastInitialisation = true;
    }
}

From source file:org.ireland.jnetty.webapp.WebApp.java

/**
 * /*w w  w .  ja v a2  s.  co  m*/
 * ContextURI?FilterChainInvocation
 * 
 * @param contextURI
 * @param filterMapper   DispatcherType?FilterMapper
 * @return
 * @throws ServletException
 */
private FilterChainInvocation createFilterChainInvocation(String contextURI, FilterMapper filterMapper)
        throws ServletException {
    if (debug)
        log.debug("createFilterChainInvocation:" + contextURI);

    FilterChainInvocation fcInvocation = new FilterChainInvocation(this, contextURI);

    try {
        FilterChain chain;

        if (!isEnabled()) //503
        {
            Exception ex = new UnavailableException("'" + getContextPath() + "' is not currently available.");
            chain = new ExceptionFilterChain(ex);
        } else {
            //?Servlet
            chain = _servletMapper.buildServletChain(fcInvocation); // JettyTomcat,?Sevlet??,??Filter

            //?Filter
            chain = filterMapper.buildFilterChain(fcInvocation, chain);
        }

        fcInvocation.setFilterChain(chain);
    } catch (Exception e) {
        log.debug(e.toString(), e);

        FilterChain chain = new ExceptionFilterChain(e);
        fcInvocation.setFilterChain(chain);
    }

    return fcInvocation;
}

From source file:net.wastl.webmail.server.WebMailServer.java

protected void initStorage() throws UnavailableException {
    /* Storage API */
    try {/*ww w  . j a v a 2 s .c om*/
        Class storage_api = Class.forName(config.getProperty("webmail.storage"));

        Class[] tmp = new Class[1];
        tmp[0] = Class.forName("net.wastl.webmail.server.WebMailServer");
        Constructor cons = storage_api.getConstructor(tmp);

        Object[] sargs = new Object[1];
        sargs[0] = this;

        storage = (Storage) cons.newInstance(sargs);

    } catch (InvocationTargetException e) {
        log.fatal("Could not initialize. Exiting now!  Nested exc:", e.getTargetException());
        throw new UnavailableException(e.getMessage());
    } catch (Exception e) {
        log.fatal("Could not initialize. Exiting now!", e);
        throw new UnavailableException(e.getMessage());
    }
}