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package com.sun.faces.config.processor;

import javax.naming.InitialContext;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Set;
import java.util.LinkedHashMap;
import java.util.logging.Level;
import java.util.logging.Logger;

import javax.el.ELResolver;
import javax.faces.application.Application;
import javax.faces.application.ConfigurableNavigationHandler;
import javax.faces.application.NavigationHandler;
import javax.faces.application.ResourceHandler;
import javax.faces.application.StateManager;
import javax.faces.application.ViewHandler;
import javax.faces.context.FacesContext;
import javax.faces.el.PropertyResolver;
import javax.faces.el.VariableResolver;
import javax.faces.event.ActionListener;
import javax.faces.event.SystemEventListener;
import javax.faces.event.SystemEvent;
import javax.faces.event.NamedEvent;
import javax.servlet.ServletContext;

import com.sun.faces.application.ApplicationAssociate;
import com.sun.faces.application.ApplicationResourceBundle;
import com.sun.faces.el.ChainAwareVariableResolver;
import com.sun.faces.el.DummyPropertyResolverImpl;
import com.sun.faces.util.FacesLogger;
import com.sun.faces.util.Util;
import com.sun.faces.config.ConfigurationException;
import com.sun.faces.config.WebConfiguration;
import com.sun.faces.config.DocumentInfo;

import java.util.LinkedHashSet;
import java.util.Map;
import java.util.concurrent.CopyOnWriteArrayList;
import javax.faces.validator.BeanValidator;
import javax.validation.Validator;
import javax.validation.Validation;
import javax.validation.ValidatorFactory;
import static com.sun.faces.config.WebConfiguration.BooleanWebContextInitParameter.DisableFaceletJSFViewHandler;

import javax.naming.Context;
import javax.naming.NamingException;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Document;

/**
 * 

* This ConfigProcessor handles all elements defined under * /faces-config/application. *

*/ public class ApplicationConfigProcessor extends AbstractConfigProcessor { private static final Logger LOGGER = FacesLogger.CONFIG.getLogger(); /** * /faces-config/application */ private static final String APPLICATION = "application"; /** * /faces-config/application/action-listener */ private static final String ACTION_LISTENER = "action-listener"; private List actionListeners; /** * /faces-config/application/default-render-kit-id */ private static final String DEFAULT_RENDERKIT_ID = "default-render-kit-id"; /** * /faces-config/application/default-validators */ private static final String DEFAULT_VALIDATORS = "default-validators"; /** * /faces-config/application/default-validators/validator-id */ private static final String VALIDATOR_ID = "validator-id"; /** * /faces-config/application/message-bundle */ private static final String MESSAGE_BUNDLE = "message-bundle"; /** * /faces-config/application/navigation-handler */ private static final String NAVIGATION_HANDLER = "navigation-handler"; private List navigationHandlers; /** * /faces-config/application/view-handler */ private static final String VIEW_HANDLER = "view-handler"; private List viewHandlers; /** * /faces-config/application/state-manager */ private static final String STATE_MANAGER = "state-manager"; private List stateManagers; /** * /faces-config/application/resource-handler */ private static final String RESOURCE_HANDLER = "resource-handler"; private List resourceHandlers; /** * /faces-config/application/el-resolver */ private static final String EL_RESOLVER = "el-resolver"; private List elResolvers; /** * /faces-config/application/property-resolver */ private static final String PROPERTY_RESOLVER = "property-resolver"; /** * /faces-config/application/variable-resolver */ private static final String VARIABLE_RESOLVER = "variable-resolver"; /** * /faces-config/application/locale-config/default-locale */ private static final String DEFAULT_LOCALE = "default-locale"; /** * /faces-config/application/locale-config/supported-locale */ private static final String SUPPORTED_LOCALE = "supported-locale"; /** * /faces-config/application/resource-bundle */ private static final String RESOURCE_BUNDLE = "resource-bundle"; /** * /faces-config/application/resource-bundle/base-name */ private static final String BASE_NAME = "base-name"; /** * /faces-config/application/resource-bundle/var */ private static final String VAR = "var"; /** * /faces-config/application/resource-bundle/description */ private static final String RES_DESCRIPTIONS = "description"; /** * /faces-config/application/resource-bundle/display-name */ private static final String RES_DISPLAY_NAMES = "display-name"; /** * /faces-config/application/system-event-listener */ private static final String SYSTEM_EVENT_LISTENER = "system-event-listener"; private List systemEventListeners; /** * /faces-config/application/system-event-listener/system-event-listener-class */ private static final String SYSTEM_EVENT_LISTENER_CLASS = "system-event-listener-class"; /** * /faces-config/application/system-event-listener/system-event-class */ private static final String SYSTEM_EVENT_CLASS = "system-event-class"; /** * /faces-config/application/system-event-listener/source-class */ private static final String SOURCE_CLASS = "source-class"; public ApplicationConfigProcessor() { actionListeners = new CopyOnWriteArrayList(); navigationHandlers = new CopyOnWriteArrayList(); viewHandlers = new CopyOnWriteArrayList(); stateManagers = new CopyOnWriteArrayList(); resourceHandlers = new CopyOnWriteArrayList(); elResolvers = new CopyOnWriteArrayList(); systemEventListeners = new CopyOnWriteArrayList(); } // -------------------------------------------- Methods from ConfigProcessor /** * @see ConfigProcessor#process(javax.servlet.ServletContext,com.sun.faces.config.DocumentInfo[]) */ public void process(ServletContext sc, DocumentInfo[] documentInfos) throws Exception { Application app = getApplication(); ApplicationAssociate associate = ApplicationAssociate.getInstance( FacesContext.getCurrentInstance().getExternalContext()); LinkedHashMap viewHandlers = new LinkedHashMap(); LinkedHashSet defaultValidatorIds = null; for (int i = 0; i < documentInfos.length; i++) { if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, MessageFormat.format("Processing application elements for document: ''{0}''", documentInfos[i].getSourceURI())); } Document document = documentInfos[i].getDocument(); String namespace = document.getDocumentElement().getNamespaceURI(); NodeList applicationElements = document.getDocumentElement() .getElementsByTagNameNS(namespace, APPLICATION); if (applicationElements != null && applicationElements.getLength() > 0) { for (int a = 0, asize = applicationElements.getLength(); a < asize; a++) { Node appElement = applicationElements.item(a); NodeList children = ((Element) appElement) .getElementsByTagNameNS(namespace, "*"); if (children != null && children.getLength() > 0) { for (int c = 0, csize = children.getLength(); c < csize; c++) { Node n = children.item(c); if (MESSAGE_BUNDLE.equals(n.getLocalName())) { setMessageBundle(app, n); } else if (DEFAULT_RENDERKIT_ID.equals(n.getLocalName())) { setDefaultRenderKitId(app, n); } else if (ACTION_LISTENER.equals(n.getLocalName())) { addActionListener(sc, app, n); } else if (NAVIGATION_HANDLER.equals(n.getLocalName())) { setNavigationHandler(sc, app, n); } else if (VIEW_HANDLER.equals(n.getLocalName())) { String viewHandler = getNodeText(n); if (viewHandler != null) { viewHandlers.put(viewHandler, n); } } else if (STATE_MANAGER.equals(n.getLocalName())) { setStateManager(sc, app, n); } else if (EL_RESOLVER.equals(n.getLocalName())) { addELResolver(sc, associate, n); } else if (PROPERTY_RESOLVER.equals(n.getLocalName())) { addPropertyResolver(sc, associate, n); } else if (VARIABLE_RESOLVER.equals(n.getLocalName())) { addVariableResolver(sc, associate, n); } else if (DEFAULT_LOCALE.equals(n.getLocalName())) { setDefaultLocale(app, n); } else if (SUPPORTED_LOCALE.equals(n.getLocalName())) { addSupportedLocale(app, n); } else if (RESOURCE_BUNDLE.equals(n.getLocalName())) { addResouceBundle(associate, n); } else if (RESOURCE_HANDLER.equals(n.getLocalName())) { setResourceHandler(sc, app, n); } else if (SYSTEM_EVENT_LISTENER.equals(n.getLocalName())) { addSystemEventListener(sc, app, n); } else if (DEFAULT_VALIDATORS.equals(n.getLocalName())) { if (defaultValidatorIds == null) { defaultValidatorIds = new LinkedHashSet(); } else { defaultValidatorIds.clear(); } } else if (VALIDATOR_ID.equals(n.getLocalName())) { defaultValidatorIds.add(getNodeText(n)); } } } } } } registerDefaultValidatorIds(app, defaultValidatorIds); // perform any special processing for ViewHandlers... processViewHandlers(sc, app, viewHandlers); // process NamedEvent annotations, if any processAnnotations(NamedEvent.class); // continue processing... invokeNext(sc, documentInfos); } @Override public void destroy(ServletContext sc) { destroyInstances(sc, actionListeners); destroyInstances(sc, navigationHandlers); destroyInstances(sc, stateManagers); destroyInstances(sc, viewHandlers); destroyInstances(sc, elResolvers); destroyInstances(sc, resourceHandlers); destroyInstances(sc, systemEventListeners); destroyNext(sc); } private void destroyInstances(ServletContext sc, List instances) { for (Object cur : instances) { destroyInstance(sc, cur.getClass().getName(), cur); } instances.clear(); } // --------------------------------------------------------- Private Methods /** * If defaultValidatorIds is null, then no <default-validators> element appeared in any configuration file. * In that case, add javax.faces.Bean if Bean Validation is available. If the <default-validators> appeared * at least once, don't add the default (and empty <default-validator> element disabled default validators) */ private void registerDefaultValidatorIds(Application application, LinkedHashSet defaultValidatorIds) { if (defaultValidatorIds == null) { defaultValidatorIds = new LinkedHashSet(); if (isBeanValidatorAvailable()) { WebConfiguration webConfig = WebConfiguration.getInstance(); if (!webConfig.isOptionEnabled(WebConfiguration.BooleanWebContextInitParameter.DisableDefaultBeanValidator)) { defaultValidatorIds.add(BeanValidator.VALIDATOR_ID); } } } for (String validatorId : defaultValidatorIds) { if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, MessageFormat.format( "Calling Application.addDefaultValidatorId({0})", validatorId)); } application.addDefaultValidatorId(validatorId); } } static boolean isBeanValidatorAvailable() { boolean result = false; final String beansValidationAvailabilityCacheKey = "javax.faces.BEANS_VALIDATION_AVAILABLE"; Map appMap = FacesContext.getCurrentInstance().getExternalContext().getApplicationMap(); if (appMap.containsKey(beansValidationAvailabilityCacheKey)) { result = (Boolean) appMap.get(beansValidationAvailabilityCacheKey); } else { try { Thread.currentThread().getContextClassLoader().loadClass("javax.validation.MessageInterpolator"); // Check if the Implementation is available. Object cachedObject = appMap.get(BeanValidator.VALIDATOR_FACTORY_KEY); if(cachedObject instanceof ValidatorFactory) { result = true; } else { Context initialContext = null; try { initialContext = new InitialContext(); } catch (NoClassDefFoundError nde) { // on google app engine InitialContext is forbidden to use and GAE throws NoClassDefFoundError if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, nde.toString(), nde); } } catch (NamingException ne) { if (LOGGER.isLoggable(Level.WARNING)) { LOGGER.log(Level.WARNING, ne.toString(), ne); } } try { Object validatorFactory = initialContext.lookup("java:comp/ValidatorFactory"); if (null != validatorFactory) { appMap.put(BeanValidator.VALIDATOR_FACTORY_KEY, validatorFactory); result = true; } } catch (NamingException root) { if (LOGGER.isLoggable(Level.FINE)) { String msg = "Could not build a default Bean Validator factory: " + root.getMessage(); LOGGER.fine(msg); } } if (!result) { try { ValidatorFactory factory = Validation.buildDefaultValidatorFactory(); Validator validator = factory.getValidator(); appMap.put(BeanValidator.VALIDATOR_FACTORY_KEY, factory); result = true; } catch(Throwable throwable) { } } } } catch (Throwable t) { // CNFE or ValidationException or any other if (LOGGER.isLoggable(Level.FINE)) { LOGGER.fine("Unable to load Beans Validation"); } } appMap.put(beansValidationAvailabilityCacheKey, result); } return result; } private void setMessageBundle(Application application, Node messageBundle) { if (messageBundle != null) { String bundle = getNodeText(messageBundle); if (bundle != null) { if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, MessageFormat.format( "Calling Application.setMessageBundle({0})", bundle)); } application.setMessageBundle(bundle); } } } private void setDefaultRenderKitId(Application application, Node defaultId) { if (defaultId != null) { String id = getNodeText(defaultId); if (id != null) { if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, MessageFormat.format( "Calling Application.setDefaultRenderKitId({0})", id)); } application.setDefaultRenderKitId(id); } } } private void addActionListener(ServletContext sc, Application application, Node actionListener) { if (actionListener != null) { String listener = getNodeText(actionListener); if (listener != null) { boolean [] didPerformInjection = { false }; ActionListener instance = (ActionListener) createInstance(sc, listener, ActionListener.class, application.getActionListener(), actionListener, true, didPerformInjection); if (instance != null) { if (didPerformInjection[0]) { actionListeners.add(instance); } if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, MessageFormat.format( "Calling Application.setActionListeners({0})", listener)); } application .setActionListener(instance); } } } } private void setNavigationHandler(ServletContext sc, Application application, Node navigationHandler) { if (navigationHandler != null) { String handler = getNodeText(navigationHandler); if (handler != null) { Class rootType = findRootType(sc, handler, navigationHandler, new Class[] { ConfigurableNavigationHandler.class, NavigationHandler.class }); boolean [] didPerformInjection = { false }; NavigationHandler instance = (NavigationHandler) createInstance(sc, handler, ((rootType != null) ? rootType : NavigationHandler.class), application.getNavigationHandler(), navigationHandler, true, didPerformInjection); if (instance != null) { if (didPerformInjection[0]) { navigationHandlers.add(instance); } if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, MessageFormat.format( "Calling Application.setNavigationHandlers({0})", handler)); } application .setNavigationHandler(instance); } } } } private void setStateManager(ServletContext sc, Application application, Node stateManager) { if (stateManager != null) { String manager = getNodeText(stateManager); if (manager != null) { boolean [] didPerformInjection = { false }; StateManager instance = (StateManager) createInstance(sc, manager, StateManager.class, application.getStateManager(), stateManager, true, didPerformInjection); if (instance != null) { if (didPerformInjection[0]) { stateManagers.add(instance); } if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, MessageFormat.format( "Calling Application.setStateManagers({0})", manager)); } application.setStateManager(instance); } } } } private void setViewHandler(ServletContext sc, Application application, Node viewHandler) { if (viewHandler != null) { String handler = getNodeText(viewHandler); if (handler != null) { boolean [] didPerformInjection = { false }; ViewHandler instance = (ViewHandler) createInstance(sc, handler, ViewHandler.class, application.getViewHandler(), viewHandler, true, didPerformInjection); if (instance != null) { if (didPerformInjection[0]) { viewHandlers.add(instance); } if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, MessageFormat.format( "Calling Application.setViewHandler({0})", handler)); } application.setViewHandler(instance); } } } } private void addELResolver(ServletContext sc, ApplicationAssociate associate, Node elResolver) { if (elResolver != null) { if (associate != null) { List resolvers = associate .getELResolversFromFacesConfig(); if (resolvers == null) { //noinspection CollectionWithoutInitialCapacity resolvers = new ArrayList(); associate.setELResolversFromFacesConfig(resolvers); } String elResolverClass = getNodeText(elResolver); if (elResolverClass != null) { boolean [] didPerformInjection = { false }; ELResolver elRes = (ELResolver) createInstance(sc, elResolverClass, ELResolver.class, null, elResolver, true, didPerformInjection); if (elRes != null) { if (didPerformInjection[0]) { elResolvers.add(elRes); } if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, MessageFormat.format( "Adding ''{0}'' to ELResolver chain", elResolverClass)); } resolvers.add(elRes); } } } } } @SuppressWarnings("deprecation") private void addPropertyResolver(ServletContext sc, ApplicationAssociate associate, Node propertyResolver) { if (propertyResolver != null) { if (associate != null) { Object resolverImpl = associate.getLegacyPRChainHead(); if (resolverImpl == null) { resolverImpl = new DummyPropertyResolverImpl(); } String resolver = getNodeText(propertyResolver); if (resolver != null) { boolean [] didPerformInjection = { false }; resolverImpl = createInstance(sc, resolver, PropertyResolver.class, resolverImpl, propertyResolver, false, didPerformInjection); if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, MessageFormat.format( "Adding ''{0}'' to PropertyResolver chain", resolverImpl)); } } if (resolverImpl != null) { associate .setLegacyPRChainHead((PropertyResolver) resolverImpl); } } } } @SuppressWarnings("deprecation") private void addVariableResolver(ServletContext sc, ApplicationAssociate associate, Node variableResolver) { if (variableResolver != null) { if (associate != null) { Object resolverImpl = associate.getLegacyVRChainHead(); if (resolverImpl == null) { resolverImpl = new ChainAwareVariableResolver(); } String resolver = getNodeText(variableResolver); if (resolver != null) { boolean [] didPerformInjection = { false }; resolverImpl = createInstance(sc, resolver, VariableResolver.class, resolverImpl, variableResolver, false, didPerformInjection); if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, MessageFormat.format( "Adding ''{0}'' to VariableResolver chain", resolverImpl)); } } if (resolverImpl != null) { associate .setLegacyVRChainHead((VariableResolver) resolverImpl); } } } } private void setDefaultLocale(Application application, Node defaultLocale) { if (defaultLocale != null) { String defLocale = getNodeText(defaultLocale); if (defLocale != null) { Locale def = Util.getLocaleFromString(defLocale); if (def != null) { if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, MessageFormat.format( "Setting default Locale to ''{0}''", defLocale)); } application.setDefaultLocale(def); } } } } private void addSupportedLocale(Application application, Node supportedLocale) { if (supportedLocale != null) { Set sLocales = getCurrentLocales(application); String locString = getNodeText(supportedLocale); if (locString != null) { Locale loc = Util.getLocaleFromString(locString); if (loc != null) { if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, MessageFormat.format( "Adding supported Locale ''{0}''", locString)); } sLocales.add(loc); } application.setSupportedLocales(sLocales); } } } private void addResouceBundle(ApplicationAssociate associate, Node resourceBundle) { if (resourceBundle != null) { NodeList children = resourceBundle.getChildNodes(); if (children != null) { String baseName = null; String var = null; List descriptions = null; List displayNames = null; for (int i = 0, size = children.getLength(); i < size; i++) { Node n = children.item(i); if (n.getNodeType() == Node.ELEMENT_NODE) { if (BASE_NAME.equals(n.getLocalName())) { baseName = getNodeText(n); } else if (VAR.equals(n.getLocalName())) { var = getNodeText(n); } else if (RES_DESCRIPTIONS.equals(n.getLocalName())) { if (descriptions == null) { descriptions = new ArrayList(2); } descriptions.add(n); } else if (RES_DISPLAY_NAMES.equals(n.getLocalName())) { if (displayNames == null) { displayNames = new ArrayList(2); } displayNames.add(n); } } } if ((baseName != null) && (var != null)) { associate.addResourceBundle(var, new ApplicationResourceBundle( baseName, getTextMap(displayNames), getTextMap(descriptions))); } } } } private Set getCurrentLocales(Application application) { //noinspection CollectionWithoutInitialCapacity Set supportedLocales = new HashSet(); for (Iterator i = application.getSupportedLocales(); i.hasNext();) { supportedLocales.add(i.next()); } return supportedLocales; } private void setResourceHandler(ServletContext sc, Application application, Node resourceHandler) { if (resourceHandler != null) { String handler = getNodeText(resourceHandler); if (handler != null) { boolean [] didPerformInjection = { false }; ResourceHandler instance = (ResourceHandler) createInstance(sc, handler, ResourceHandler.class, application.getResourceHandler(), resourceHandler, true, didPerformInjection); if (instance != null) { if (didPerformInjection[0]) { resourceHandlers.add(instance); } if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, MessageFormat.format( "Calling Application.setResourceHandler({0})", handler)); } application.setResourceHandler(instance); } } } } private void addSystemEventListener(ServletContext sc, Application application, Node systemEventListener) { NodeList children = systemEventListener.getChildNodes(); String listenerClass = null; String eventClass = null; String sourceClass = null; for (int j = 0, len = children.getLength(); j < len; j++) { Node n = children.item(j); if (n.getNodeType() == Node.ELEMENT_NODE) { if (SYSTEM_EVENT_LISTENER_CLASS.equals(n.getLocalName())) { listenerClass = getNodeText(n); } else if (SYSTEM_EVENT_CLASS.equals(n.getLocalName())) { eventClass = getNodeText(n); } else if (SOURCE_CLASS.equals(n.getLocalName())) { sourceClass = getNodeText(n); } } } if (listenerClass != null) { SystemEventListener selInstance = (SystemEventListener) createInstance(sc, listenerClass, SystemEventListener.class, null, systemEventListener); if (selInstance != null) { systemEventListeners.add(selInstance); try { // If there is an eventClass, use it, otherwise use // SystemEvent.class //noinspection unchecked Class eventClazz; if (eventClass != null) { eventClazz = (Class) loadClass(sc, eventClass, this, null); } else { eventClazz = SystemEvent.class; } // If there is a sourceClass, use it, otherwise use null Class sourceClazz = (sourceClass != null && sourceClass.length() != 0) ? Util.loadClass(sourceClass, this.getClass()) : null; application.subscribeToEvent(eventClazz, sourceClazz, selInstance); if (LOGGER.isLoggable(Level.FINE)) { LOGGER.log(Level.FINE, "Subscribing for event {0} and source {1} using listener {2}", new Object[]{ eventClazz.getName(), ((sourceClazz != null) ? sourceClazz .getName() : "ANY"), selInstance.getClass().getName() }); } } catch (ClassNotFoundException cnfe) { throw new ConfigurationException(cnfe); } } } } private void processViewHandlers(ServletContext sc, Application app, LinkedHashMap viewHandlers) { // take special action on the ViewHandlers that have been // configured for the application. If any of the ViewHandlers // is the FaceletViewHandler, don't install the 2.0 // FaceletViewHandler. Make the application behave as 1.2 // unless they use our ViewHandler WebConfiguration webConfig = WebConfiguration.getInstance(); if (!webConfig.isOptionEnabled(DisableFaceletJSFViewHandler)) { if (viewHandlers.containsKey("com.sun.facelets.FaceletViewHandler")) { if (LOGGER.isLoggable(Level.WARNING)) { LOGGER.log(Level.WARNING, "jsf.application.legacy_facelet_viewhandler_detected", "com.sun.facelets.FaceletViewHandler"); } webConfig.overrideContextInitParameter(DisableFaceletJSFViewHandler, true); } } for (Node n : viewHandlers.values()) { setViewHandler(sc, app, n); } } }