Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ package org.apache.myfaces.application; import java.beans.BeanDescriptor; import java.beans.BeanInfo; import java.lang.reflect.Constructor; import java.util.ArrayList; import java.util.Arrays; import java.util.Collection; import java.util.Collections; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Locale; import java.util.Map; import java.util.MissingResourceException; import java.util.TimeZone; import java.util.concurrent.ConcurrentHashMap; import java.util.concurrent.CopyOnWriteArrayList; import java.util.logging.Level; import java.util.logging.Logger; import javax.el.CompositeELResolver; import javax.el.ELContext; import javax.el.ELContextListener; import javax.el.ELException; import javax.el.ELResolver; import javax.el.ExpressionFactory; import javax.el.MethodExpression; import javax.el.ValueExpression; import javax.faces.FacesException; import javax.faces.application.Application; import javax.faces.application.NavigationHandler; import javax.faces.application.ProjectStage; import javax.faces.application.Resource; import javax.faces.application.ResourceDependencies; import javax.faces.application.ResourceDependency; import javax.faces.application.ResourceHandler; import javax.faces.application.StateManager; import javax.faces.application.ViewHandler; import javax.faces.component.UIComponent; import javax.faces.component.UIComponentBase; import javax.faces.component.UINamingContainer; import javax.faces.component.UIOutput; import javax.faces.component.UIViewRoot; import javax.faces.component.behavior.Behavior; import javax.faces.component.behavior.ClientBehaviorBase; import javax.faces.context.FacesContext; import javax.faces.convert.Converter; import javax.faces.convert.DateTimeConverter; import javax.faces.el.MethodBinding; import javax.faces.el.PropertyResolver; import javax.faces.el.ReferenceSyntaxException; import javax.faces.el.ValueBinding; import javax.faces.el.VariableResolver; import javax.faces.event.AbortProcessingException; import javax.faces.event.ActionListener; import javax.faces.event.ComponentSystemEventListener; import javax.faces.event.ListenerFor; import javax.faces.event.ListenersFor; import javax.faces.event.SystemEvent; import javax.faces.event.SystemEventListener; import javax.faces.event.SystemEventListenerHolder; import javax.faces.flow.FlowHandler; import javax.faces.render.ClientBehaviorRenderer; import javax.faces.render.RenderKit; import javax.faces.render.Renderer; import javax.faces.render.RendererWrapper; import javax.faces.validator.Validator; import javax.faces.view.ViewDeclarationLanguage; import javax.naming.Context; import javax.naming.InitialContext; import javax.naming.NamingException; import org.apache.commons.beanutils.BeanUtils; import org.apache.myfaces.application.cdi.ConverterWrapper; import org.apache.myfaces.cdi.util.ExternalArtifactResolver; import org.apache.myfaces.application.cdi.ValidatorWrapper; import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFWebConfigParam; import org.apache.myfaces.config.RuntimeConfig; import org.apache.myfaces.config.element.Property; import org.apache.myfaces.config.element.ResourceBundle; import org.apache.myfaces.context.RequestViewContext; import org.apache.myfaces.context.RequestViewMetadata; import org.apache.myfaces.el.PropertyResolverImpl; import org.apache.myfaces.el.VariableResolverToApplicationELResolverAdapter; import org.apache.myfaces.el.convert.MethodExpressionToMethodBinding; import org.apache.myfaces.el.convert.ValueBindingToValueExpression; import org.apache.myfaces.el.convert.ValueExpressionToValueBinding; import org.apache.myfaces.el.unified.ELResolverBuilder; import org.apache.myfaces.el.unified.ResolverBuilderForFaces; import org.apache.myfaces.el.unified.resolver.FacesCompositeELResolver; import org.apache.myfaces.el.unified.resolver.FacesCompositeELResolver.Scope; import org.apache.myfaces.flow.FlowHandlerImpl; import org.apache.myfaces.lifecycle.LifecycleImpl; import org.apache.myfaces.shared.config.MyfacesConfig; import org.apache.myfaces.shared.util.ClassUtils; import org.apache.myfaces.util.ExternalSpecifications; import org.apache.myfaces.view.facelets.FaceletCompositionContext; import org.apache.myfaces.view.facelets.el.ELText; /** * DOCUMENT ME! * * @author Manfred Geiler (latest modification by $Author: lu4242 $) * @author Anton Koinov * @author Thomas Spiegl * @author Stan Silvert * @version $Revision: 1550609 $ $Date: 2013-12-12 20:18:08 -0500 (Thu, 12 Dec 2013) $ */ @SuppressWarnings("deprecation") public class ApplicationImpl extends Application { //private static final Log log = LogFactory.getLog(ApplicationImpl.class); private static final Logger log = Logger.getLogger(ApplicationImpl.class.getName()); private final static VariableResolver VARIABLERESOLVER = new VariableResolverToApplicationELResolverAdapter(); private final static PropertyResolver PROPERTYRESOLVER = new PropertyResolverImpl(); // the name for the system property which specifies the current ProjectStage (see MYFACES-2545 for details) public final static String PROJECT_STAGE_SYSTEM_PROPERTY_NAME = "faces.PROJECT_STAGE"; // MyFaces specific System Property to set the ProjectStage, if not present via the standard way @Deprecated public final static String MYFACES_PROJECT_STAGE_SYSTEM_PROPERTY_NAME = "org.apache.myfaces.PROJECT_STAGE"; /** * Indicate the stage of the initialized application. */ @JSFWebConfigParam(defaultValue = "Production", expectedValues = "Development, Production, SystemTest, UnitTest", since = "2.0") private static final String PROJECT_STAGE_PARAM_NAME = "javax.faces.PROJECT_STAGE"; /** * Indicate if the classes associated to components, converters, validators or behaviors * should be loaded as soon as they are added to the current application instance or instead * loaded in a lazy way. */ @JSFWebConfigParam(defaultValue = "true", since = "2.0", tags = "performance") private static final String LAZY_LOAD_CONFIG_OBJECTS_PARAM_NAME = "org.apache.myfaces.LAZY_LOAD_CONFIG_OBJECTS"; private static final boolean LAZY_LOAD_CONFIG_OBJECTS_DEFAULT_VALUE = true; private Boolean _lazyLoadConfigObjects = null; /** * Key under UIViewRoot to generated unique ids for components added * by @ResourceDependency effect. */ private static final String RESOURCE_DEPENDENCY_UNIQUE_ID_KEY = "oam.view.resourceDependencyUniqueId"; // ~ Instance fields // -------------------------------------------------------------------------- // -- private Collection<Locale> _supportedLocales = Collections.emptySet(); private Locale _defaultLocale; private String _messageBundle; private ViewHandler _viewHandler; private NavigationHandler _navigationHandler; private ActionListener _actionListener; private String _defaultRenderKitId; private ResourceHandler _resourceHandler; private StateManager _stateManager; private FlowHandler _flowHandler; private ArrayList<ELContextListener> _elContextListeners; // components, converters, and validators can be added at runtime--must // synchronize, uses ConcurrentHashMap to allow concurrent read of map private final Map<String, Object> _converterIdToClassMap = new ConcurrentHashMap<String, Object>(); private final Map<Class<?>, Object> _converterTargetClassToConverterClassMap = new ConcurrentHashMap<Class<?>, Object>(); private final Map<String, Object> _componentClassMap = new ConcurrentHashMap<String, Object>(); private final Map<String, Object> _validatorClassMap = new ConcurrentHashMap<String, Object>(); private final Map<Class<? extends SystemEvent>, SystemListenerEntry> _systemEventListenerClassMap = new ConcurrentHashMap<Class<? extends SystemEvent>, SystemListenerEntry>(); private final Map<String, String> _defaultValidatorsIds = new HashMap<String, String>(); private volatile Map<String, String> _cachedDefaultValidatorsIds = null; private final Map<String, Object> _behaviorClassMap = new ConcurrentHashMap<String, Object>(); private final RuntimeConfig _runtimeConfig; private ELResolver elResolver; private ELResolverBuilder resolverBuilderForFaces; private ProjectStage _projectStage; private volatile boolean _firstRequestProcessed = false; // MYFACES-3442 If HashMap or other non thread-safe structure is used, it is // possible to fall in a infinite loop under heavy load unless a synchronized block // is used to modify it or a ConcurrentHashMap. private final Map<Class<?>, List<ListenerFor>> _classToListenerForMap = new ConcurrentHashMap<Class<?>, List<ListenerFor>>(); private final Map<Class<?>, List<ResourceDependency>> _classToResourceDependencyMap = new ConcurrentHashMap<Class<?>, List<ResourceDependency>>(); private List<Class<? extends Converter>> _noArgConstructorConverterClasses = new CopyOnWriteArrayList<Class<? extends Converter>>(); /** Value of javax.faces.DATETIMECONVERTER_DEFAULT_TIMEZONE_IS_SYSTEM_TIMEZONE parameter */ private boolean _dateTimeConverterDefaultTimeZoneIsSystemTimeZone = false; private final ExternalArtifactResolver _externalArtifactResolver; /** * Represents semantic null in _componentClassMap. */ private static final UIComponent NOTHING = new UIComponentBase() { @Override public String getFamily() { return null; } }; // ~ Constructors // -------------------------------------------------------------------------- // ----- public ApplicationImpl() { this(getRuntimeConfig()); } private static RuntimeConfig getRuntimeConfig() { return RuntimeConfig.getCurrentInstance(FacesContext.getCurrentInstance().getExternalContext()); } ApplicationImpl(final RuntimeConfig runtimeConfig) { if (runtimeConfig == null) { throw new IllegalArgumentException("runtimeConfig must mot be null"); } // set default implementation in constructor // pragmatic approach, no syncronizing will be needed in get methods _viewHandler = new ViewHandlerImpl(); _navigationHandler = new NavigationHandlerImpl(); _actionListener = new ActionListenerImpl(); _defaultRenderKitId = "HTML_BASIC"; _stateManager = new StateManagerImpl(); _elContextListeners = new ArrayList<ELContextListener>(); _resourceHandler = new ResourceHandlerImpl(); _flowHandler = new FlowHandlerImpl(); _runtimeConfig = runtimeConfig; if (log.isLoggable(Level.FINEST)) { log.finest("New Application instance created"); } String configParam = getFaceContext().getExternalContext() .getInitParameter(Converter.DATETIMECONVERTER_DEFAULT_TIMEZONE_IS_SYSTEM_TIMEZONE_PARAM_NAME); if (configParam != null && configParam.toLowerCase().equals("true")) { _dateTimeConverterDefaultTimeZoneIsSystemTimeZone = true; } if (ExternalSpecifications.isCDIAvailable(getFaceContext().getExternalContext())) { _externalArtifactResolver = (ExternalArtifactResolver) ClassUtils .newInstance("org.apache.myfaces.cdi.util.CDIExternalArtifactResolver"); } else { _externalArtifactResolver = null; } } // ~ Methods // -------------------------------------------------------------------------- // ---------- @Override public final void addELResolver(final ELResolver resolver) { if (isFirstRequestProcessed()) { throw new IllegalStateException("It is illegal to add a resolver after the first request is processed"); } if (resolver != null) { _runtimeConfig.addApplicationElResolver(resolver); } } @Override public void addDefaultValidatorId(String validatorId) { if (_validatorClassMap.containsKey(validatorId)) { Class<? extends Validator> validatorClass = getObjectFromClassMap(validatorId, _validatorClassMap); // Ensure atomicity between _defaultValidatorsIds and _cachedDefaultValidatorsIds synchronized (_defaultValidatorsIds) { _defaultValidatorsIds.put(validatorId, validatorClass.getName()); _cachedDefaultValidatorsIds = null; } } } @Override public Map<String, String> getDefaultValidatorInfo() { // cachedMap ensures we will not return null if after the check for null // _cachedDefaultValidatorsIds is set to null. In theory the unmodifiable map // always has a reference to _defaultValidatorsIds, so any instance set // in _cachedDefaultValidatorsIds is always the same. Map<String, String> cachedMap = _cachedDefaultValidatorsIds; if (cachedMap == null) { synchronized (_defaultValidatorsIds) { if (_cachedDefaultValidatorsIds == null) { _cachedDefaultValidatorsIds = Collections.unmodifiableMap(_defaultValidatorsIds); } cachedMap = _cachedDefaultValidatorsIds; } } return cachedMap; } @Override public final ELResolver getELResolver() { // we don't need synchronization here since it is ok to have multiple // instances of the elresolver if (elResolver == null) { elResolver = createFacesResolver(); } return elResolver; } private ELResolver createFacesResolver() { boolean supportJSPAndFacesEL = MyfacesConfig.getCurrentInstance(getFaceContext().getExternalContext()) .isSupportJSPAndFacesEL(); CompositeELResolver resolver; if (supportJSPAndFacesEL) { resolver = new FacesCompositeELResolver(Scope.Faces); } else { resolver = new CompositeELResolver(); } getResolverBuilderForFaces().build(resolver); return resolver; } protected final ELResolverBuilder getResolverBuilderForFaces() { if (resolverBuilderForFaces == null) { resolverBuilderForFaces = new ResolverBuilderForFaces(_runtimeConfig); } return resolverBuilderForFaces; } public final void setResolverBuilderForFaces(final ELResolverBuilder factory) { resolverBuilderForFaces = factory; } @Override public final java.util.ResourceBundle getResourceBundle(final FacesContext facesContext, final String name) throws FacesException, NullPointerException { checkNull(facesContext, "facesContext"); checkNull(name, "name"); final String bundleName = getBundleName(facesContext, name); if (bundleName == null) { return null; } Locale locale = Locale.getDefault(); final UIViewRoot viewRoot = facesContext.getViewRoot(); if (viewRoot != null && viewRoot.getLocale() != null) { locale = viewRoot.getLocale(); } try { return getResourceBundle(bundleName, locale, getClassLoader()); } catch (MissingResourceException e) { try { return getResourceBundle(bundleName, locale, this.getClass().getClassLoader()); } catch (MissingResourceException e1) { throw new FacesException( "Could not load resource bundle for name '" + name + "': " + e.getMessage(), e1); } } } private ClassLoader getClassLoader() { return ClassUtils.getContextClassLoader(); } String getBundleName(final FacesContext facesContext, final String name) { ResourceBundle bundle = getRuntimeConfig(facesContext).getResourceBundle(name); return bundle != null ? bundle.getBaseName() : null; } java.util.ResourceBundle getResourceBundle(final String name, final Locale locale, final ClassLoader loader) throws MissingResourceException { return java.util.ResourceBundle.getBundle(name, locale, loader); } final RuntimeConfig getRuntimeConfig(final FacesContext facesContext) { return RuntimeConfig.getCurrentInstance(facesContext.getExternalContext()); } final FacesContext getFaceContext() { return FacesContext.getCurrentInstance(); } @Override public final UIComponent createComponent(final ValueExpression componentExpression, final FacesContext facesContext, final String componentType) throws FacesException, NullPointerException { /* * Before the component instance is returned, it must be inspected for the presence of a ListenerFor (or * ListenersFor) or ResourceDependency (or ResourceDependencies) annotation. If any of these annotations are * present, the action listed in ListenerFor or ResourceDependency must be taken on the component, * before it is * returned from this method. This variant of createComponent must not inspect the Renderer for the * component to * be returned for any of the afore mentioned annotations. Such inspection is the province of */ checkNull(componentExpression, "componentExpression"); checkNull(facesContext, "facesContext"); checkNull(componentType, "componentType"); ELContext elContext = facesContext.getELContext(); try { Object retVal = componentExpression.getValue(elContext); UIComponent createdComponent; if (retVal instanceof UIComponent) { createdComponent = (UIComponent) retVal; _handleAnnotations(facesContext, createdComponent, createdComponent); } else { createdComponent = createComponent(facesContext, componentType); componentExpression.setValue(elContext, createdComponent); } return createdComponent; } catch (FacesException e) { throw e; } catch (Exception e) { throw new FacesException(e); } } @Override public UIComponent createComponent(ValueExpression componentExpression, FacesContext context, String componentType, String rendererType) { // Like createComponent(ValueExpression, FacesContext, String) UIComponent component = createComponent(componentExpression, context, componentType); if (rendererType != null) { _inspectRenderer(context, component, componentType, rendererType); } return component; } @Override public final ExpressionFactory getExpressionFactory() { return _runtimeConfig.getExpressionFactory(); } @SuppressWarnings("unchecked") @Override public final <T> T evaluateExpressionGet(final FacesContext context, final String expression, final Class<? extends T> expectedType) throws ELException { ELContext elContext = context.getELContext(); ExpressionFactory factory = getExpressionFactory(); return (T) factory.createValueExpression(elContext, expression, expectedType).getValue(elContext); } @Override public final void addELContextListener(final ELContextListener listener) { synchronized (_elContextListeners) { _elContextListeners.add(listener); } } @Override public void publishEvent(FacesContext facesContext, Class<? extends SystemEvent> systemEventClass, Class<?> sourceBaseType, Object source) { checkNull(systemEventClass, "systemEventClass"); checkNull(source, "source"); //Call events only if event processing is enabled. if (!facesContext.isProcessingEvents()) { return; } // spec: If this argument is null the return from source.getClass() must be used as the sourceBaseType. if (sourceBaseType == null) { sourceBaseType = source.getClass(); } try { SystemEvent event = null; if (source instanceof SystemEventListenerHolder) { SystemEventListenerHolder holder = (SystemEventListenerHolder) source; // If the source argument implements SystemEventListenerHolder, call // SystemEventListenerHolder.getListenersForEventClass(java.lang.Class) on it, passing the // systemEventClass // argument. If the list is not empty, perform algorithm traverseListenerList on the list. event = _traverseListenerList(holder.getListenersForEventClass(systemEventClass), systemEventClass, source, event); } UIViewRoot uiViewRoot = facesContext.getViewRoot(); if (uiViewRoot != null) { //Call listeners on view level event = _traverseListenerListWithCopy(uiViewRoot.getViewListenersForEventClass(systemEventClass), systemEventClass, source, event); } SystemListenerEntry systemListenerEntry = _systemEventListenerClassMap.get(systemEventClass); if (systemListenerEntry != null) { systemListenerEntry.publish(systemEventClass, sourceBaseType, source, event); } } catch (AbortProcessingException e) { // If the act of invoking the processListener method causes an AbortProcessingException to be thrown, // processing of the listeners must be aborted, no further processing of the listeners for this event must // take place, and the exception must be logged with Level.SEVERE. log.log(Level.SEVERE, "Event processing was aborted", e); } } @Override public void publishEvent(FacesContext facesContext, Class<? extends SystemEvent> systemEventClass, Object source) { publishEvent(facesContext, systemEventClass, source.getClass(), source); } @Override public final void removeELContextListener(final ELContextListener listener) { synchronized (_elContextListeners) { _elContextListeners.remove(listener); } } @Override public final ELContextListener[] getELContextListeners() { // this gets called on every request, so I can't afford to synchronize // I just have to trust that toArray() with do the right thing if the // list is changing (not likely) return _elContextListeners.toArray(new ELContextListener[_elContextListeners.size()]); } @Override public final void setActionListener(final ActionListener actionListener) { checkNull(actionListener, "actionListener"); _actionListener = actionListener; if (log.isLoggable(Level.FINEST)) { log.finest("set actionListener = " + actionListener.getClass().getName()); } } @Override public final ActionListener getActionListener() { return _actionListener; } @Override public Iterator<String> getBehaviorIds() { return _behaviorClassMap.keySet().iterator(); } @Override public final Iterator<String> getComponentTypes() { return _componentClassMap.keySet().iterator(); } @Override public final Iterator<String> getConverterIds() { return _converterIdToClassMap.keySet().iterator(); } @Override public final Iterator<Class<?>> getConverterTypes() { return _converterTargetClassToConverterClassMap.keySet().iterator(); } @Override public final void setDefaultLocale(final Locale locale) { checkNull(locale, "locale"); _defaultLocale = locale; if (log.isLoggable(Level.FINEST)) { log.finest("set defaultLocale = " + locale.getCountry() + " " + locale.getLanguage()); } } @Override public final Locale getDefaultLocale() { return _defaultLocale; } @Override public final void setMessageBundle(final String messageBundle) { checkNull(messageBundle, "messageBundle"); _messageBundle = messageBundle; if (log.isLoggable(Level.FINEST)) { log.finest("set MessageBundle = " + messageBundle); } } @Override public final String getMessageBundle() { return _messageBundle; } @Override public final void setNavigationHandler(final NavigationHandler navigationHandler) { checkNull(navigationHandler, "navigationHandler"); _navigationHandler = navigationHandler; if (log.isLoggable(Level.FINEST)) { log.finest("set NavigationHandler = " + navigationHandler.getClass().getName()); } } @Override public final NavigationHandler getNavigationHandler() { return _navigationHandler; } /** * @deprecated */ @Deprecated @Override public final void setPropertyResolver(final PropertyResolver propertyResolver) { checkNull(propertyResolver, "propertyResolver"); if (getFaceContext() != null) { throw new IllegalStateException("propertyResolver must be defined before request processing"); } _runtimeConfig.setPropertyResolver(propertyResolver); if (log.isLoggable(Level.FINEST)) { log.finest("set PropertyResolver = " + propertyResolver.getClass().getName()); } } @Override public ProjectStage getProjectStage() { // If the value has already been determined by a previous call to this // method, simply return that value. if (_projectStage == null) { String stageName = null; // try to obtain the ProjectStage from the system property // faces.PROJECT_STAGE as proposed by Ed Burns stageName = System.getProperty(PROJECT_STAGE_SYSTEM_PROPERTY_NAME); if (stageName == null) { // if not found check for the "old" System Property // and print a warning message to the log (just to be // sure that everyone recognizes the change in the name). stageName = System.getProperty(MYFACES_PROJECT_STAGE_SYSTEM_PROPERTY_NAME); if (stageName != null) { log.log(Level.WARNING, "The system property " + MYFACES_PROJECT_STAGE_SYSTEM_PROPERTY_NAME + " has been replaced by " + PROJECT_STAGE_SYSTEM_PROPERTY_NAME + "!" + " Please change your settings."); } } if (stageName == null) { // Look for a JNDI environment entry under the key given by the // value of ProjectStage.PROJECT_STAGE_JNDI_NAME (return type of // java.lang.String). try { Context ctx = new InitialContext(); Object temp = ctx.lookup(ProjectStage.PROJECT_STAGE_JNDI_NAME); if (temp != null) { if (temp instanceof String) { stageName = (String) temp; } else { log.severe("JNDI lookup for key " + ProjectStage.PROJECT_STAGE_JNDI_NAME + " should return a java.lang.String value"); } } } catch (NamingException e) { // no-op } catch (NoClassDefFoundError er) { //On Google App Engine, javax.naming.Context is a restricted class. //In that case, NoClassDefFoundError is thrown. stageName needs to be configured //below by context parameter. //It can be done with changing the order to look first at // context param, but it is defined in the spec. //http://java.sun.com/javaee/6/docs/api/javax/faces/application/Application.html#getProjectStage() //no-op } } /* * If found, continue with the algorithm below, otherwise, look for an entry in the initParamMap of the * ExternalContext from the current FacesContext with the key ProjectStage.PROJECT_STAGE_PARAM_NAME */ if (stageName == null) { FacesContext context = FacesContext.getCurrentInstance(); stageName = context.getExternalContext().getInitParameter(ProjectStage.PROJECT_STAGE_PARAM_NAME); } // If a value is found if (stageName != null) { /* * see if an enum constant can be obtained by calling ProjectStage.valueOf(), passing * the value from the initParamMap. If this succeeds without exception, save the value * and return it. */ try { _projectStage = ProjectStage.valueOf(stageName); return _projectStage; } catch (IllegalArgumentException e) { log.log(Level.INFO, "Couldn't discover the current project stage: " + stageName); } } else { if (log.isLoggable(Level.INFO)) { log.info("Couldn't discover the current project stage, using " + ProjectStage.Production); } } /* * If not found, or any of the previous attempts to discover the enum constant value have failed, log a * descriptive error message, assign the value as ProjectStage.Production and return it. */ _projectStage = ProjectStage.Production; } return _projectStage; } /** * @deprecated */ @Deprecated @Override public final PropertyResolver getPropertyResolver() { return PROPERTYRESOLVER; } @Override public final void setResourceHandler(ResourceHandler resourceHandler) { checkNull(resourceHandler, "resourceHandler"); if (isFirstRequestProcessed()) { throw new IllegalStateException( "setResourceHandler may not be executed after a lifecycle request has been completed"); } _resourceHandler = resourceHandler; } @Override public final ResourceHandler getResourceHandler() { return _resourceHandler; } @Override public final void setSupportedLocales(final Collection<Locale> locales) { checkNull(locales, "locales"); _supportedLocales = locales; if (log.isLoggable(Level.FINEST)) { log.finest("set SupportedLocales"); } } @Override public final Iterator<Locale> getSupportedLocales() { return _supportedLocales.iterator(); } @Override public final Iterator<String> getValidatorIds() { return _validatorClassMap.keySet().iterator(); } /** * @deprecated */ @Deprecated @Override public final void setVariableResolver(final VariableResolver variableResolver) { checkNull(variableResolver, "variableResolver"); if (isFirstRequestProcessed()) { throw new IllegalStateException("variableResolver must be defined before request processing"); } _runtimeConfig.setVariableResolver(variableResolver); if (log.isLoggable(Level.FINEST)) { log.finest("set VariableResolver = " + variableResolver.getClass().getName()); } } /** * @deprecated */ @Deprecated @Override public final VariableResolver getVariableResolver() { return VARIABLERESOLVER; } @Override public final void setViewHandler(final ViewHandler viewHandler) { checkNull(viewHandler, "viewHandler"); if (isFirstRequestProcessed()) { throw new IllegalStateException( "setViewHandler may not be executed after a lifecycle request has been completed"); } _viewHandler = viewHandler; if (log.isLoggable(Level.FINEST)) { log.finest("set ViewHandler = " + viewHandler.getClass().getName()); } } @Override public void subscribeToEvent(Class<? extends SystemEvent> systemEventClass, SystemEventListener listener) { subscribeToEvent(systemEventClass, null, listener); } @Override public void subscribeToEvent(Class<? extends SystemEvent> systemEventClass, Class<?> sourceClass, SystemEventListener listener) { checkNull(systemEventClass, "systemEventClass"); checkNull(listener, "listener"); SystemListenerEntry systemListenerEntry; synchronized (_systemEventListenerClassMap) { systemListenerEntry = _systemEventListenerClassMap.get(systemEventClass); if (systemListenerEntry == null) { systemListenerEntry = new SystemListenerEntry(); _systemEventListenerClassMap.put(systemEventClass, systemListenerEntry); } } systemListenerEntry.addListener(listener, sourceClass); } @Override public void unsubscribeFromEvent(Class<? extends SystemEvent> systemEventClass, SystemEventListener listener) { unsubscribeFromEvent(systemEventClass, null, listener); } @Override public void unsubscribeFromEvent(Class<? extends SystemEvent> systemEventClass, Class<?> sourceClass, SystemEventListener listener) { checkNull(systemEventClass, "systemEventClass"); checkNull(listener, "listener"); SystemListenerEntry systemListenerEntry = _systemEventListenerClassMap.get(systemEventClass); if (systemListenerEntry != null) { systemListenerEntry.removeListener(listener, sourceClass); } } @Override public final ViewHandler getViewHandler() { return _viewHandler; } @Override public void addBehavior(String behaviorId, String behaviorClass) { checkNull(behaviorId, "behaviorId"); checkEmpty(behaviorId, "behaviorId"); checkNull(behaviorClass, "behaviorClass"); checkEmpty(behaviorClass, "behaviorClass"); try { if (isLazyLoadConfigObjects()) { _behaviorClassMap.put(behaviorId, behaviorClass); } else { _behaviorClassMap.put(behaviorId, ClassUtils.simpleClassForName(behaviorClass)); } if (log.isLoggable(Level.FINEST)) { log.finest("add Behavior class = " + behaviorClass + " for id = " + behaviorId); } } catch (Exception e) { log.log(Level.SEVERE, "Behavior class " + behaviorClass + " not found", e); } } @Override public final void addComponent(final String componentType, final String componentClassName) { checkNull(componentType, "componentType"); checkEmpty(componentType, "componentType"); checkNull(componentClassName, "componentClassName"); checkEmpty(componentClassName, "componentClassName"); try { if (isLazyLoadConfigObjects()) { _componentClassMap.put(componentType, componentClassName); } else { _componentClassMap.put(componentType, ClassUtils.simpleClassForName(componentClassName)); } if (log.isLoggable(Level.FINEST)) { log.finest("add Component class = " + componentClassName + " for type = " + componentType); } } catch (Exception e) { log.log(Level.SEVERE, "Component class " + componentClassName + " not found", e); } } @Override public final void addConverter(final String converterId, final String converterClass) { checkNull(converterId, "converterId"); checkEmpty(converterId, "converterId"); checkNull(converterClass, "converterClass"); checkEmpty(converterClass, "converterClass"); try { if (isLazyLoadConfigObjects()) { _converterIdToClassMap.put(converterId, converterClass); } else { _converterIdToClassMap.put(converterId, ClassUtils.simpleClassForName(converterClass)); } if (log.isLoggable(Level.FINEST)) { log.finest("add Converter id = " + converterId + " converterClass = " + converterClass); } } catch (Exception e) { log.log(Level.SEVERE, "Converter class " + converterClass + " not found", e); } } @Override public final void addConverter(final Class<?> targetClass, final String converterClass) { checkNull(targetClass, "targetClass"); checkNull(converterClass, "converterClass"); checkEmpty(converterClass, "converterClass"); try { if (isLazyLoadConfigObjects()) { _converterTargetClassToConverterClassMap.put(targetClass, converterClass); } else { _converterTargetClassToConverterClassMap.put(targetClass, ClassUtils.simpleClassForName(converterClass)); } if (log.isLoggable(Level.FINEST)) { log.finest("add Converter for class = " + targetClass + " converterClass = " + converterClass); } } catch (Exception e) { log.log(Level.SEVERE, "Converter class " + converterClass + " not found", e); } } @Override public final void addValidator(final String validatorId, final String validatorClass) { checkNull(validatorId, "validatorId"); checkEmpty(validatorId, "validatorId"); checkNull(validatorClass, "validatorClass"); checkEmpty(validatorClass, "validatorClass"); try { if (isLazyLoadConfigObjects()) { _validatorClassMap.put(validatorId, validatorClass); } else { _validatorClassMap.put(validatorId, ClassUtils.simpleClassForName(validatorClass)); } if (log.isLoggable(Level.FINEST)) { log.finest("add Validator id = " + validatorId + " class = " + validatorClass); } } catch (Exception e) { log.log(Level.SEVERE, "Validator class " + validatorClass + " not found", e); } } @Override public Behavior createBehavior(String behaviorId) throws FacesException { checkNull(behaviorId, "behaviorId"); checkEmpty(behaviorId, "behaviorId"); final Class<? extends Behavior> behaviorClass = getObjectFromClassMap(behaviorId, _behaviorClassMap); if (behaviorClass == null) { throw new FacesException("Could not find any registered behavior-class for behaviorId : " + behaviorId); } try { Behavior behavior = behaviorClass.newInstance(); FacesContext facesContext = FacesContext.getCurrentInstance(); _handleAttachedResourceDependencyAnnotations(facesContext, behavior); if (behavior instanceof ClientBehaviorBase) { ClientBehaviorBase clientBehavior = (ClientBehaviorBase) behavior; String renderType = clientBehavior.getRendererType(); if (renderType != null) { ClientBehaviorRenderer cbr = facesContext.getRenderKit().getClientBehaviorRenderer(renderType); _handleAttachedResourceDependencyAnnotations(facesContext, cbr); } } return behavior; } catch (Exception e) { log.log(Level.SEVERE, "Could not instantiate behavior " + behaviorClass, e); throw new FacesException("Could not instantiate behavior: " + behaviorClass, e); } } @Override public UIComponent createComponent(FacesContext context, Resource componentResource) { checkNull(context, "context"); checkNull(componentResource, "componentResource"); UIComponent component = null; Resource resource; String fqcn; Class<? extends UIComponent> componentClass = null; /* * Obtain a reference to the ViewDeclarationLanguage for this Application instance by calling * ViewHandler.getViewDeclarationLanguage(javax.faces.context.FacesContext, java.lang.String), passing the * viewId found by calling UIViewRoot.getViewId() on the UIViewRoot in the argument FacesContext. */ UIViewRoot view = context.getViewRoot(); Application application = context.getApplication(); ViewDeclarationLanguage vdl = application.getViewHandler().getViewDeclarationLanguage(context, view.getViewId()); /* * Obtain a reference to the composite component metadata for this composite component by calling * ViewDeclarationLanguage.getComponentMetadata(javax.faces.context.FacesContext, * javax.faces.application.Resource), passing the facesContext and componentResource arguments to this method. * This version of JSF specification uses JavaBeans as the API to the component metadata. */ BeanInfo metadata = vdl.getComponentMetadata(context, componentResource); if (metadata == null) { throw new FacesException("Could not get component metadata for " + componentResource.getResourceName() + ". Did you forget to specify <composite:interface>?"); } /* * Determine if the component author declared a component-type for this component instance by obtaining the * BeanDescriptor from the component metadata and calling its getValue() method, passing * UIComponent.COMPOSITE_COMPONENT_TYPE_KEY as the argument. If non-null, the result must be a ValueExpression * whose value is the component-type of the UIComponent to be created for this Resource component. Call through * to createComponent(java.lang.String) to create the component. */ BeanDescriptor descriptor = metadata.getBeanDescriptor(); ValueExpression componentType = (ValueExpression) descriptor .getValue(UIComponent.COMPOSITE_COMPONENT_TYPE_KEY); boolean annotationsApplied = false; if (componentType != null) { component = application.createComponent((String) componentType.getValue(context.getELContext())); annotationsApplied = true; } else { /* * Otherwise, determine if a script based component for this Resource can be found by calling * ViewDeclarationLanguage.getScriptComponentResource(javax.faces.context.FacesContext, * javax.faces.application.Resource). If the result is non-null, and is a script written in one of the * languages listed in JSF 4.3 of the specification prose document, create a UIComponent instance from the * script resource. */ resource = vdl.getScriptComponentResource(context, componentResource); if (resource != null) { String name = resource.getResourceName(); String className = name.substring(0, name.lastIndexOf('.')); component = (UIComponent) ClassUtils.newInstance(className); } else { /* * Otherwise, let library-name be the return from calling Resource.getLibraryName() on the argument * componentResource and resource-name be the return from calling Resource.getResourceName() on the * argument componentResource. Create a fully qualified Java class name by removing any file extension * from resource-name and let fqcn be library-name + "." + resource-name. If a class with the name of * fqcn cannot be found, take no action and continue to the next step. If any of * InstantiationException, * IllegalAccessException, or ClassCastException are thrown, wrap the exception in a FacesException and * re-throw it. If any other exception is thrown, log the exception and continue to the next step. */ boolean isProduction = FacesContext.getCurrentInstance().isProjectStage(ProjectStage.Production); String name = componentResource.getResourceName(); String className = name.substring(0, name.lastIndexOf('.')); fqcn = componentResource.getLibraryName() + "." + className; if (isProduction) { componentClass = (Class<? extends UIComponent>) _componentClassMap.get(fqcn); } if (componentClass == null) { try { componentClass = ClassUtils.classForName(fqcn); if (isProduction) { _componentClassMap.put(fqcn, componentClass); } } catch (ClassNotFoundException e) { // Remember here that classForName did not find Class if (isProduction) { _componentClassMap.put(fqcn, NOTHING.getClass()); } } } if (componentClass != null && NOTHING.getClass() != componentClass) { try { component = componentClass.newInstance(); } catch (InstantiationException e) { log.log(Level.SEVERE, "Could not instantiate component class name = " + fqcn, e); throw new FacesException("Could not instantiate component class name = " + fqcn, e); } catch (IllegalAccessException e) { log.log(Level.SEVERE, "Could not instantiate component class name = " + fqcn, e); throw new FacesException("Could not instantiate component class name = " + fqcn, e); } catch (Exception e) { log.log(Level.SEVERE, "Could not instantiate component class name = " + fqcn, e); } } /* * If none of the previous steps have yielded a UIComponent instance, call * createComponent(java.lang.String) passing "javax.faces.NamingContainer" as the argument. */ if (component == null) { component = application.createComponent(context, UINamingContainer.COMPONENT_TYPE, null); annotationsApplied = true; } } } /* * Call UIComponent.setRendererType(java.lang.String) on the UIComponent instance, passing * "javax.faces.Composite" as the argument. */ component.setRendererType("javax.faces.Composite"); /* * Store the argument Resource in the attributes Map of the UIComponent under the key, * Resource.COMPONENT_RESOURCE_KEY. */ component.getAttributes().put(Resource.COMPONENT_RESOURCE_KEY, componentResource); /* * Store composite component metadata in the attributes Map of the UIComponent under the key, * UIComponent.BEANINFO_KEY. */ component.getAttributes().put(UIComponent.BEANINFO_KEY, metadata); /* * Before the component instance is returned, it must be inspected for the presence of a * ListenerFor annotation. * If this annotation is present, the action listed in ListenerFor must be taken on the component, * before it is * returned from this method. */ if (!annotationsApplied) { _handleAnnotations(context, component, component); } return component; } @Override public UIComponent createComponent(FacesContext context, String componentType, String rendererType) { checkNull(context, "context"); checkNull(componentType, "componentType"); // Like createComponent(String) UIComponent component = createComponent(context, componentType); // A null value on this field is valid! If that so, no need to do any log // or look on RenderKit map for a inexistent renderer! if (rendererType != null) { _inspectRenderer(context, component, componentType, rendererType); } return component; } /** * This works just like createComponent(String componentType), but without call * FacesContext.getCurrentInstance() * * @param facesContext * @param componentType * @return * @throws FacesException */ private final UIComponent createComponent(FacesContext facesContext, final String componentType) throws FacesException { checkNull(componentType, "componentType"); checkEmpty(componentType, "componentType"); final Class<? extends UIComponent> componentClass = getObjectFromClassMap(componentType, _componentClassMap); if (componentClass == null) { log.log(Level.SEVERE, "Undefined component type " + componentType); throw new FacesException("Undefined component type " + componentType); } try { UIComponent component = componentClass.newInstance(); _handleAnnotations(facesContext, component, component); return component; } catch (Exception e) { log.log(Level.SEVERE, "Could not instantiate component componentType = " + componentType, e); throw new FacesException("Could not instantiate component componentType = " + componentType, e); } } @Override public final UIComponent createComponent(final String componentType) throws FacesException { checkNull(componentType, "componentType"); checkEmpty(componentType, "componentType"); final Class<? extends UIComponent> componentClass = getObjectFromClassMap(componentType, _componentClassMap); if (componentClass == null) { log.log(Level.SEVERE, "Undefined component type " + componentType); throw new FacesException("Undefined component type " + componentType); } try { UIComponent component = componentClass.newInstance(); _handleAnnotations(FacesContext.getCurrentInstance(), component, component); return component; } catch (Exception e) { log.log(Level.SEVERE, "Could not instantiate component componentType = " + componentType, e); throw new FacesException("Could not instantiate component componentType = " + componentType, e); } } /** * @deprecated Use createComponent(ValueExpression, FacesContext, String) instead. */ @Deprecated @Override public final UIComponent createComponent(final ValueBinding valueBinding, final FacesContext facesContext, final String componentType) throws FacesException { checkNull(valueBinding, "valueBinding"); checkNull(facesContext, "facesContext"); checkNull(componentType, "componentType"); checkEmpty(componentType, "componentType"); final ValueExpression valExpression = new ValueBindingToValueExpression(valueBinding); return createComponent(valExpression, facesContext, componentType); } /** * Return an instance of the converter class that has been registered under the specified id. * <p> * Converters are registered via faces-config.xml files, and can also be registered via the addConverter(String id, * Class converterClass) method on this class. Here the the appropriate Class definition is found, then an instance * is created and returned. * <p> * A converter registered via a config file can have any number of nested attribute or property tags. The JSF * specification is very vague about what effect these nested tags have. This method ignores nested attribute * definitions, but for each nested property tag the corresponding setter is invoked on the new Converter instance * passing the property's defaultValuer. Basic typeconversion is done so the target properties on the Converter * instance can be String, int, boolean, etc. Note that: * <ol> * <li>the Sun Mojarra JSF implemenation ignores nested property tags completely, so this behaviour cannot be * relied on across implementations. * <li>there is no equivalent functionality for converter classes registered via the Application.addConverter api * method. * </ol> * <p> * Note that this method is most commonly called from the standard f:attribute tag. As an alternative, most * components provide a "converter" attribute which uses an EL expression to create a Converter instance, in which * case this method is not invoked at all. The converter attribute allows the returned Converter instance to be * configured via normal dependency-injection, and is generally a better choice than using this method. */ @Override public final Converter createConverter(final String converterId) { checkNull(converterId, "converterId"); checkEmpty(converterId, "converterId"); final Class<? extends Converter> converterClass = getObjectFromClassMap(converterId, _converterIdToClassMap); if (converterClass == null) { throw new FacesException( "Could not find any registered converter-class by converterId : " + converterId); } try { final Converter converter = createConverterInstance(converterClass); setConverterProperties(converterClass, converter); _handleAttachedResourceDependencyAnnotations(FacesContext.getCurrentInstance(), converter); return converter; } catch (Exception e) { log.log(Level.SEVERE, "Could not instantiate converter " + converterClass, e); throw new FacesException("Could not instantiate converter: " + converterClass, e); } } private Converter createConverterInstance(Class<? extends Converter> converterClass) throws InstantiationException, IllegalAccessException { Converter result = _externalArtifactResolver != null ? _externalArtifactResolver.resolveManagedConverter(converterClass) : null; if (result == null) { return converterClass.newInstance(); } else { return new ConverterWrapper(result); } } @Override public final Converter createConverter(final Class<?> targetClass) { checkNull(targetClass, "targetClass"); return internalCreateConverter(targetClass); } @SuppressWarnings("unchecked") private Converter internalCreateConverter(final Class<?> targetClass) { // Locate a Converter registered for the target class itself. Object converterClassOrClassName = _converterTargetClassToConverterClassMap.get(targetClass); // Locate a Converter registered for interfaces that are // implemented by the target class (directly or indirectly). // Skip if class is String, for performance reasons // (save 3 additional lookups over a concurrent map per request). if (converterClassOrClassName == null && !String.class.equals(targetClass)) { final Class<?> interfaces[] = targetClass.getInterfaces(); if (interfaces != null) { for (int i = 0, len = interfaces.length; i < len; i++) { // search all superinterfaces for a matching converter, // create it final Converter converter = internalCreateConverter(interfaces[i]); if (converter != null) { return converter; } } } } // Get EnumConverter for enum classes with no special converter, check // here as recursive call with java.lang.Enum will not work if (converterClassOrClassName == null && targetClass.isEnum()) { converterClassOrClassName = _converterTargetClassToConverterClassMap.get(Enum.class); } if (converterClassOrClassName != null) { try { Class<? extends Converter> converterClass = null; if (converterClassOrClassName instanceof Class<?>) { converterClass = (Class<? extends Converter>) converterClassOrClassName; } else if (converterClassOrClassName instanceof String) { converterClass = ClassUtils.simpleClassForName((String) converterClassOrClassName); _converterTargetClassToConverterClassMap.put(targetClass, converterClass); } else { //object stored in the map for this id is an invalid type. remove it and return null _converterTargetClassToConverterClassMap.remove(targetClass); } Converter converter = null; // check cached constructor information if (!_noArgConstructorConverterClasses.contains(converterClass)) { // the converter class either supports the one-arg constructor // or has never been processed before try { // look for a constructor that takes a single Class object // See JSF 1.2 javadoc for Converter Constructor<? extends Converter> constructor = converterClass .getConstructor(new Class[] { Class.class }); converter = constructor.newInstance(new Object[] { targetClass }); } catch (Exception e) { // the constructor does not exist // add the class to the no-arg constructor classes cache _noArgConstructorConverterClasses.add(converterClass); // use no-arg constructor converter = createConverterInstance(converterClass); } } else { // use no-arg constructor converter = createConverterInstance(converterClass); } setConverterProperties(converterClass, converter); return converter; } catch (Exception e) { log.log(Level.SEVERE, "Could not instantiate converter " + converterClassOrClassName.toString(), e); throw new FacesException("Could not instantiate converter: " + converterClassOrClassName.toString(), e); } } // locate converter for primitive types if (targetClass == Long.TYPE) { return internalCreateConverter(Long.class); } else if (targetClass == Boolean.TYPE) { return internalCreateConverter(Boolean.class); } else if (targetClass == Double.TYPE) { return internalCreateConverter(Double.class); } else if (targetClass == Byte.TYPE) { return internalCreateConverter(Byte.class); } else if (targetClass == Short.TYPE) { return internalCreateConverter(Short.class); } else if (targetClass == Integer.TYPE) { return internalCreateConverter(Integer.class); } else if (targetClass == Float.TYPE) { return internalCreateConverter(Float.class); } else if (targetClass == Character.TYPE) { return internalCreateConverter(Character.class); } // Locate a Converter registered for the superclass (if any) of the // target class, // recursively working up the inheritance hierarchy. Class<?> superClazz = targetClass.getSuperclass(); return superClazz != null ? internalCreateConverter(superClazz) : null; } private void setConverterProperties(final Class<?> converterClass, final Converter converter) { final org.apache.myfaces.config.element.Converter converterConfig = _runtimeConfig .getConverterConfiguration(converterClass.getName()); // if the converter is a DataTimeConverter, check the init param for the default timezone (since 2.0) if (converter instanceof DateTimeConverter && _dateTimeConverterDefaultTimeZoneIsSystemTimeZone) { ((DateTimeConverter) converter).setTimeZone(TimeZone.getDefault()); } if (converterConfig != null && converterConfig.getProperties().size() > 0) { for (Property property : converterConfig.getProperties()) { try { BeanUtils.setProperty(converter, property.getPropertyName(), property.getDefaultValue()); } catch (Throwable th) { log.log(Level.SEVERE, "Initializing converter : " + converterClass.getName() + " with property : " + property.getPropertyName() + " and value : " + property.getDefaultValue() + " failed."); } } } } private void _handleAttachedResourceDependencyAnnotations(FacesContext context, Object inspected) { if (inspected == null) { return; } // This and only this method handles @ResourceDependency and @ResourceDependencies annotations // The source of these annotations is Class<?> inspectedClass. // Because Class<?> and its annotations cannot change // during request/response, it is sufficient to process Class<?> only once per view. RequestViewContext rvc = RequestViewContext.getCurrentInstance(context); Class<?> inspectedClass = inspected.getClass(); if (rvc.isClassAlreadyProcessed(inspectedClass)) { return; } boolean classAlreadyProcessed = false; List<ResourceDependency> dependencyList = null; boolean isCachedList = false; if (context.isProjectStage(ProjectStage.Production) && _classToResourceDependencyMap.containsKey(inspectedClass)) { dependencyList = _classToResourceDependencyMap.get(inspectedClass); if (dependencyList == null) { return; //class has been inspected and did not contain any resource dependency annotations } else if (dependencyList.isEmpty()) { return; } isCachedList = true; // else annotations were found in the cache } if (dependencyList == null) //not in production or the class hasn't been inspected yet { ResourceDependency dependency = inspectedClass.getAnnotation(ResourceDependency.class); ResourceDependencies dependencies = inspectedClass.getAnnotation(ResourceDependencies.class); if (dependency != null || dependencies != null) { //resource dependencies were found using one or both annotations, create and build a new list dependencyList = new ArrayList<ResourceDependency>(); if (dependency != null) { dependencyList.add(dependency); } if (dependencies != null) { dependencyList.addAll(Arrays.asList(dependencies.value())); } } else { dependencyList = Collections.emptyList(); } } //resource dependencies were found through inspection or from cache, handle them if (dependencyList != null && !dependencyList.isEmpty()) { for (int i = 0, size = dependencyList.size(); i < size; i++) { ResourceDependency dependency = dependencyList.get(i); if (!rvc.isResourceDependencyAlreadyProcessed(dependency)) { _handleAttachedResourceDependency(context, dependency, inspectedClass); rvc.setResourceDependencyAsProcessed(dependency); } } } //if we're in production and the list is not yet cached, store it if (context.isProjectStage(ProjectStage.Production) && !isCachedList && dependencyList != null) { // Note at this point dependencyList cannot be null, but just let this // as a sanity check. _classToResourceDependencyMap.put(inspectedClass, dependencyList); } if (!classAlreadyProcessed) { rvc.setClassProcessed(inspectedClass); } } /** * If the ResourceDependency component is created under facelets processing, it should receive * an special unique component id. This method check if there is a FaceletCompositionContext * and if that so, set the id. Components added by the effect of ResourceDependency are special, * because they do not have state, but they depends on the view structure, so with PSS, * each time the view is built they are "recalculated", so they work as if they were transient * components that needs to be created at each request, but there are some cases were the * components needs to be saved and restored fully. If a component is created outside facelets * control (render response phase) it is expected to use the default implementation of * createUniqueId(), but in that case, note that this happens after markInitialState() is * called, and the component in this case is saved and restored fully, as expected. * * This code cannot be called from facelets component tag handler, because in cases where a * component subtree is created using binding property, facelets lost control over component * creation and delegates it to the user, but since the binding code is executed each time the * view is created, the effect over ResourceDependency persists and the binding code takes into * account in the recalculation step, even if later the node related to the binding property * is dropped and recreated from the state fully. * * @param facesContext * @param component */ private void setResourceIdOnFaceletsMode(FacesContext facesContext, UIComponent component, Class<?> inspectedClass) { if (component.getId() == null) { FaceletCompositionContext mctx = FaceletCompositionContext.getCurrentInstance(facesContext); if (mctx != null) { UIViewRoot root = facesContext.getViewRoot(); root.getAttributes().put(RESOURCE_DEPENDENCY_UNIQUE_ID_KEY, Boolean.TRUE); try { String uid = root.createUniqueId(facesContext, null); component.setId(uid); } finally { root.getAttributes().put(RESOURCE_DEPENDENCY_UNIQUE_ID_KEY, Boolean.FALSE); } if (!mctx.isUsingPSSOnThisView()) { // Now set the identifier that will help to know which classes has been already inspected. component.getAttributes().put(RequestViewContext.RESOURCE_DEPENDENCY_INSPECTED_CLASS, inspectedClass); } else if (mctx.isRefreshTransientBuildOnPSSPreserveState()) { component.getAttributes().put(RequestViewContext.RESOURCE_DEPENDENCY_INSPECTED_CLASS, inspectedClass); } } else { // This happens when there is a programmatic addition, which means the user has added the // components to the tree on render response phase or earlier but outside facelets control. // In that case we need to save the dependency. component.getAttributes().put(RequestViewContext.RESOURCE_DEPENDENCY_INSPECTED_CLASS, inspectedClass); } } } private void _handleAttachedResourceDependency(FacesContext context, ResourceDependency annotation, Class<?> inspectedClass) { // If this annotation is not present on the class in question, no action must be taken. if (annotation != null) { Application application = context.getApplication(); // Create a UIOutput instance by passing javax.faces.Output. to // Application.createComponent(java.lang.String). UIOutput output = (UIOutput) application.createComponent(context, UIOutput.COMPONENT_TYPE, null); // Get the annotation instance from the class and obtain the values of the name, library, and // target attributes. String name = annotation.name(); if (name != null && name.length() > 0) { name = ELText.parse(getExpressionFactory(), context.getELContext(), name) .toString(context.getELContext()); } // Obtain the renderer-type for the resource name by passing name to // ResourceHandler.getRendererTypeForResourceName(java.lang.String). String rendererType = application.getResourceHandler().getRendererTypeForResourceName(name); // Call setRendererType on the UIOutput instance, passing the renderer-type. output.setRendererType(rendererType); // If the @ResourceDependency was done inside facelets processing, // call setId() and set a proper id from facelets setResourceIdOnFaceletsMode(context, output, inspectedClass); // Obtain the Map of attributes from the UIOutput component by calling UIComponent.getAttributes(). Map<String, Object> attributes = output.getAttributes(); // Store the name into the attributes Map under the key "name". attributes.put("name", name); // If library is the empty string, let library be null. String library = annotation.library(); if (library != null && library.length() > 0) { library = ELText.parse(getExpressionFactory(), context.getELContext(), library) .toString(context.getELContext()); // If library is non-null, store it under the key "library". attributes.put("library", library); } // Identify the resource as created by effect of a @ResourceDependency annotation. output.getAttributes().put(RequestViewMetadata.RESOURCE_DEPENDENCY_KEY, new Object[] { annotation.library(), annotation.name() }); // If target is the empty string, let target be null. String target = annotation.target(); if (target != null && target.length() > 0) { target = ELText.parse(getExpressionFactory(), context.getELContext(), target) .toString(context.getELContext()); // If target is non-null, store it under the key "target". attributes.put("target", target); context.getViewRoot().addComponentResource(context, output, target); } else { // Otherwise, if target is null, call // UIViewRoot.addComponentResource(javax.faces.context.FacesContext, // javax.faces.component.UIComponent), passing the UIOutput instance as the second argument. context.getViewRoot().addComponentResource(context, output); } } } // Note: this method used to be synchronized in the JSF 1.1 version. Why? /** * @deprecated */ @Deprecated @Override public final MethodBinding createMethodBinding(final String reference, Class<?>[] params) throws ReferenceSyntaxException { checkNull(reference, "reference"); checkEmpty(reference, "reference"); // TODO: this check should be performed by the expression factory. It is // a requirement of the TCK if (!(reference.startsWith("#{") && reference.endsWith("}"))) { throw new ReferenceSyntaxException("Invalid method reference: '" + reference + "'"); } if (params == null) { params = new Class[0]; } MethodExpression methodExpression; try { methodExpression = getExpressionFactory().createMethodExpression(threadELContext(), reference, Object.class, params); } catch (ELException e) { throw new ReferenceSyntaxException(e); } return new MethodExpressionToMethodBinding(methodExpression); } @Override public final Validator createValidator(final String validatorId) throws FacesException { checkNull(validatorId, "validatorId"); checkEmpty(validatorId, "validatorId"); Class<? extends Validator> validatorClass = getObjectFromClassMap(validatorId, _validatorClassMap); if (validatorClass == null) { String message = "Unknown validator id '" + validatorId + "'."; log.severe(message); throw new FacesException(message); } try { Validator validator = createValidatorInstance(validatorClass); _handleAttachedResourceDependencyAnnotations(FacesContext.getCurrentInstance(), validator); return validator; } catch (Exception e) { log.log(Level.SEVERE, "Could not instantiate validator " + validatorClass, e); throw new FacesException("Could not instantiate validator: " + validatorClass, e); } } private Validator createValidatorInstance(Class<? extends Validator> validatorClass) throws InstantiationException, IllegalAccessException { Validator result = _externalArtifactResolver != null ? _externalArtifactResolver.resolveManagedValidator(validatorClass) : null; if (result == null) { return validatorClass.newInstance(); } else { return new ValidatorWrapper(result); } } /** * @deprecated */ @Override public final ValueBinding createValueBinding(final String reference) throws ReferenceSyntaxException { checkNull(reference, "reference"); checkEmpty(reference, "reference"); ValueExpression valueExpression; try { valueExpression = getExpressionFactory().createValueExpression(threadELContext(), reference, Object.class); } catch (ELException e) { throw new ReferenceSyntaxException(e); } return new ValueExpressionToValueBinding(valueExpression); } // gets the elContext from the current FacesContext() private final ELContext threadELContext() { return getFaceContext().getELContext(); } @Override public final String getDefaultRenderKitId() { return _defaultRenderKitId; } @Override public final void setDefaultRenderKitId(final String defaultRenderKitId) { _defaultRenderKitId = defaultRenderKitId; } @Override public final StateManager getStateManager() { return _stateManager; } @Override public final void setStateManager(final StateManager stateManager) { checkNull(stateManager, "stateManager"); if (isFirstRequestProcessed()) { throw new IllegalStateException( "setStateManager may not be executed after a lifecycle request has been completed"); } _stateManager = stateManager; } @Override public final void setFlowHandler(FlowHandler flowHandler) { checkNull(flowHandler, "flowHandler"); if (isFirstRequestProcessed()) { throw new IllegalStateException( "setFlowHandler may not be executed after a lifecycle request has been completed"); } _flowHandler = flowHandler; } @Override public final FlowHandler getFlowHandler() { return _flowHandler; } private void checkNull(final Object param, final String paramName) { if (param == null) { throw new NullPointerException(paramName + " cannot be null."); } } private void checkEmpty(final String param, final String paramName) { if (param.length() == 0) { throw new NullPointerException("String " + paramName + " cannot be empty."); } } private static SystemEvent _createEvent(Class<? extends SystemEvent> systemEventClass, Object source, SystemEvent event) { if (event == null) { try { Constructor<?>[] constructors = systemEventClass.getConstructors(); Constructor<? extends SystemEvent> constructor = null; for (Constructor<?> c : constructors) { if (c.getParameterTypes().length == 1) { // Safe cast, since the constructor belongs // to a class of type SystemEvent constructor = (Constructor<? extends SystemEvent>) c; break; } } if (constructor != null) { event = constructor.newInstance(source); } } catch (Exception e) { throw new FacesException("Couldn't instanciate system event of type " + systemEventClass.getName(), e); } } return event; } private void _handleAnnotations(FacesContext context, Object inspected, UIComponent component) { // determine the ProjectStage setting via the given FacesContext // note that a local getProjectStage() could cause problems in wrapped environments boolean isProduction = context.isProjectStage(ProjectStage.Production); Class<?> inspectedClass = inspected.getClass(); _handleListenerForAnnotations(context, inspected, inspectedClass, component, isProduction); _handleResourceDependencyAnnotations(context, inspectedClass, component, isProduction); } private void _handleRendererAnnotations(FacesContext context, Renderer inspected, UIComponent component) { // determine the ProjectStage setting via the given FacesContext // note that a local getProjectStage() could cause problems in wrapped environments boolean isProduction = context.isProjectStage(ProjectStage.Production); Renderer innerRenderer = inspected; while (innerRenderer != null) { if (innerRenderer instanceof RendererWrapper) { Class<?> inspectedClass = innerRenderer.getClass(); _handleListenerForAnnotations(context, innerRenderer, inspectedClass, component, isProduction); _handleResourceDependencyAnnotations(context, inspectedClass, component, isProduction); // get the inner wrapper innerRenderer = ((RendererWrapper) innerRenderer).getWrapped(); } else { Class<?> inspectedClass = innerRenderer.getClass(); _handleListenerForAnnotations(context, innerRenderer, inspectedClass, component, isProduction); _handleResourceDependencyAnnotations(context, inspectedClass, component, isProduction); innerRenderer = null; } } } private void _handleListenerForAnnotations(FacesContext context, Object inspected, Class<?> inspectedClass, UIComponent component, boolean isProduction) { List<ListenerFor> listenerForList = null; boolean isCachedList = false; if (isProduction && _classToListenerForMap.containsKey(inspectedClass)) { listenerForList = _classToListenerForMap.get(inspectedClass); if (listenerForList == null) { return; //class has been inspected and did not contain any listener annotations } else if (listenerForList.isEmpty()) { return; } isCachedList = true; // else annotations were found in the cache } if (listenerForList == null) //not in production or the class hasn't been inspected yet { ListenerFor listener = inspectedClass.getAnnotation(ListenerFor.class); ListenersFor listeners = inspectedClass.getAnnotation(ListenersFor.class); if (listener != null || listeners != null) { //listeners were found using one or both annotations, create and build a new list listenerForList = new ArrayList<ListenerFor>(); if (listener != null) { listenerForList.add(listener); } if (listeners != null) { listenerForList.addAll(Arrays.asList(listeners.value())); } } else { listenerForList = Collections.emptyList(); } } // listeners were found through inspection or from cache, handle them if (listenerForList != null && !listenerForList.isEmpty()) { for (int i = 0, size = listenerForList.size(); i < size; i++) { ListenerFor listenerFor = listenerForList.get(i); _handleListenerFor(context, inspected, component, listenerFor); } } //if we're in production and the list is not yet cached, store it if (isProduction && !isCachedList && listenerForList != null) { // Note at this point listenerForList cannot be null, but just let listenerForList != null // as a sanity check. _classToListenerForMap.put(inspectedClass, listenerForList); } } private void _handleListenerFor(FacesContext context, Object inspected, UIComponent component, ListenerFor annotation) { // If this annotation is not present on the class in question, no action must be taken. if (annotation != null) { // Determine the "target" on which to call subscribeToEvent. // If the class to which this annotation is attached implements ComponentSystemEventListener if (inspected instanceof ComponentSystemEventListener) { // If the class to which this annotation is attached is a UIComponent instance, "target" is the // UIComponent instance. // If the class to which this annotation is attached is a Renderer instance, "target" is the // UIComponent instance. /* * If "target" is a UIComponent call UIComponent.subscribeToEvent(Class, ComponentSystemEventListener) * passing the systemEventClass() of the annotation as the first argument and the instance of the class * to which this annotation is attached (which must implement ComponentSystemEventListener) as the * second argument. */ component.subscribeToEvent(annotation.systemEventClass(), (ComponentSystemEventListener) inspected); } // If the class to which this annotation is attached implements SystemEventListener and does not implement // ComponentSystemEventListener, "target" is the Application instance. else if (component instanceof SystemEventListener) { // use the Application object from the FacesContext (note that a // direct use of subscribeToEvent() could cause problems if the // Application is wrapped) Application application = context.getApplication(); // If "target" is the Application instance, inspect the value of the sourceClass() annotation attribute // value. if (Void.class.equals(annotation.sourceClass())) { /* * If the value is Void.class, call Application.subscribeToEvent(Class, SystemEventListener), * passing the value of systemEventClass() as the first argument and the instance of the class to * which this annotation is attached (which must implement SystemEventListener) as the second * argument. */ application.subscribeToEvent(annotation.systemEventClass(), (SystemEventListener) inspected); } else { /* * Otherwise, call Application.subscribeToEvent(Class, Class, SystemEventListener), passing the * value of systemEventClass() as the first argument, the value of sourceClass() as the second * argument, and the instance of the class to which this annotation is attached (which must * implement SystemEventListener) as the third argument. */ application.subscribeToEvent(annotation.systemEventClass(), annotation.sourceClass(), (SystemEventListener) inspected); } } /* * If the class to which this annotation is attached implements ComponentSystemEventListener and is neither * an instance of Renderer nor UIComponent, the action taken is unspecified. This case must not trigger any * kind of error. */ } } private void _handleResourceDependencyAnnotations(FacesContext context, Class<?> inspectedClass, UIComponent component, boolean isProduction) { // This and only this method handles @ResourceDependency and @ResourceDependencies annotations // The source of these annotations is Class<?> inspectedClass. // Because Class<?> and its annotations cannot change // during request/response, it is sufficient to process Class<?> only once per view. RequestViewContext rvc = RequestViewContext.getCurrentInstance(context); if (rvc.isClassAlreadyProcessed(inspectedClass)) { return; } boolean classAlreadyProcessed = false; List<ResourceDependency> dependencyList = null; boolean isCachedList = false; if (isProduction && _classToResourceDependencyMap.containsKey(inspectedClass)) { dependencyList = _classToResourceDependencyMap.get(inspectedClass); if (dependencyList == null) { return; //class has been inspected and did not contain any resource dependency annotations } else if (dependencyList.isEmpty()) { return; } isCachedList = true; // else annotations were found in the cache } if (dependencyList == null) //not in production or the class hasn't been inspected yet { ResourceDependency dependency = inspectedClass.getAnnotation(ResourceDependency.class); ResourceDependencies dependencies = inspectedClass.getAnnotation(ResourceDependencies.class); if (dependency != null || dependencies != null) { //resource dependencies were found using one or both annotations, create and build a new list dependencyList = new ArrayList<ResourceDependency>(); if (dependency != null) { dependencyList.add(dependency); } if (dependencies != null) { dependencyList.addAll(Arrays.asList(dependencies.value())); } } else { dependencyList = Collections.emptyList(); } } // resource dependencies were found through inspection or from cache, handle them if (dependencyList != null && !dependencyList.isEmpty()) { for (int i = 0, size = dependencyList.size(); i < size; i++) { ResourceDependency dependency = dependencyList.get(i); if (!rvc.isResourceDependencyAlreadyProcessed(dependency)) { _handleResourceDependency(context, component, dependency, inspectedClass); rvc.setResourceDependencyAsProcessed(dependency); } } } //if we're in production and the list is not yet cached, store it if (isProduction && !isCachedList && dependencyList != null) { // Note at this point listenerForList cannot be null, but just let dependencyList != null // as a sanity check. _classToResourceDependencyMap.put(inspectedClass, dependencyList); } if (!classAlreadyProcessed) { rvc.setClassProcessed(inspectedClass); } } private void _handleResourceDependency(FacesContext context, UIComponent component, ResourceDependency annotation, Class<?> inspectedClass) { // If this annotation is not present on the class in question, no action must be taken. if (annotation != null) { // Create a UIOutput instance by passing javax.faces.Output. to // Application.createComponent(java.lang.String). UIOutput output = (UIOutput) createComponent(context, UIOutput.COMPONENT_TYPE, null); // Get the annotation instance from the class and obtain the values of the name, library, and // target attributes. String name = annotation.name(); if (name != null && name.length() > 0) { name = ELText.parse(getExpressionFactory(), context.getELContext(), name) .toString(context.getELContext()); } // Obtain the renderer-type for the resource name by passing name to // ResourceHandler.getRendererTypeForResourceName(java.lang.String). // (note that we can not use this.getResourceHandler(), because the Application might be wrapped) String rendererType = context.getApplication().getResourceHandler() .getRendererTypeForResourceName(name); // Call setRendererType on the UIOutput instance, passing the renderer-type. output.setRendererType(rendererType); // If the @ResourceDependency was done inside facelets processing, // call setId() and set a proper id from facelets setResourceIdOnFaceletsMode(context, output, inspectedClass); // Obtain the Map of attributes from the UIOutput component by calling UIComponent.getAttributes(). Map<String, Object> attributes = output.getAttributes(); // Store the name into the attributes Map under the key "name". attributes.put("name", name); // If library is the empty string, let library be null. String library = annotation.library(); if (library != null && library.length() > 0) { library = ELText.parse(getExpressionFactory(), context.getELContext(), library) .toString(context.getELContext()); // If library is non-null, store it under the key "library". if ("this".equals(library)) { // Special "this" behavior Resource resource = (Resource) component.getAttributes().get(Resource.COMPONENT_RESOURCE_KEY); if (resource != null) { attributes.put("library", resource.getLibraryName()); } } else { attributes.put("library", library); } } // Identify the resource as created by effect of a @ResourceDependency annotation. output.getAttributes().put(RequestViewMetadata.RESOURCE_DEPENDENCY_KEY, new Object[] { annotation.library(), annotation.name() }); // If target is the empty string, let target be null. String target = annotation.target(); if (target != null && target.length() > 0) { target = ELText.parse(getExpressionFactory(), context.getELContext(), target) .toString(context.getELContext()); // If target is non-null, store it under the key "target". attributes.put("target", target); context.getViewRoot().addComponentResource(context, output, target); } else { // Otherwise, if target is null, call UIViewRoot.addComponentResource(javax.faces.context.FacesContext, // javax.faces.component.UIComponent), passing the UIOutput instance as the second argument. context.getViewRoot().addComponentResource(context, output); } } } private void _inspectRenderer(FacesContext context, UIComponent component, String componentType, String rendererType) { /* * The Renderer instance to inspect must be obtained by calling FacesContext.getRenderKit() and calling * RenderKit.getRenderer(java.lang.String, java.lang.String) on the result, passing the argument componentFamily * of the newly created component as the first argument and the argument rendererType as the second argument. */ RenderKit renderKit = context.getRenderKit(); if (renderKit == null) { // If no renderKit is set, it means we are on initialization step, skip this step. return; } Renderer renderer = renderKit.getRenderer(component.getFamily(), rendererType); if (renderer == null) { // If no such Renderer can be found, a message must be logged with a helpful error message. log.severe("renderer cannot be found for component type " + componentType + " and renderer type " + rendererType); } else { // Otherwise, UIComponent.setRendererType(java.lang.String) must be called on the newly created // UIComponent instance, passing the argument rendererType as the argument. component.setRendererType(rendererType); /* * except the Renderer for the component to be returned must be inspected for the annotations mentioned in * createComponent(ValueExpression, FacesContext, String) as specified in the documentation for that method. */ _handleRendererAnnotations(context, renderer, component); } } private static SystemEvent _traverseListenerList(List<? extends SystemEventListener> listeners, Class<? extends SystemEvent> systemEventClass, Object source, SystemEvent event) { if (listeners != null && !listeners.isEmpty()) { // perf: org.apache.myfaces.application.ApplicationImpl. // SystemListenerEntry.getSpecificSourceListenersNotNull(Class<?>) // or javax.faces.component.UIComponent.subscribeToEvent( // Class<? extends SystemEvent>, ComponentSystemEventListener) // creates a ArrayList: for (int i = 0, size = listeners.size(); i < size; i++) { SystemEventListener listener = listeners.get(i); // Call SystemEventListener.isListenerForSource(java.lang.Object), passing the source argument. // If this returns false, take no action on the listener. if (listener.isListenerForSource(source)) { // Otherwise, if the event to be passed to the listener instances has not yet been constructed, // construct the event, passing source as the argument to the one-argument constructor that takes // an Object. This same event instance must be passed to all listener instances. event = _createEvent(systemEventClass, source, event); // Call SystemEvent.isAppropriateListener(javax.faces.event.FacesListener), passing the listener // instance as the argument. If this returns false, take no action on the listener. if (event.isAppropriateListener(listener)) { // Call SystemEvent.processListener(javax.faces.event.FacesListener), passing the listener // instance. event.processListener(listener); } } } } return event; } private static SystemEvent _traverseListenerListWithCopy(List<? extends SystemEventListener> listeners, Class<? extends SystemEvent> systemEventClass, Object source, SystemEvent event) { if (listeners != null && !listeners.isEmpty()) { List<SystemEventListener> listenersCopy = new ArrayList<SystemEventListener>(); int processedListenerIndex = 0; for (int i = 0; i < listeners.size(); i++) { listenersCopy.add(listeners.get(i)); } // If the inner for is succesful, processedListenerIndex == listenersCopy.size() // and the loop will be complete. while (processedListenerIndex < listenersCopy.size()) { for (; processedListenerIndex < listenersCopy.size(); processedListenerIndex++) { SystemEventListener listener = listenersCopy.get(processedListenerIndex); // Call SystemEventListener.isListenerForSource(java.lang.Object), passing the source argument. // If this returns false, take no action on the listener. if (listener.isListenerForSource(source)) { // Otherwise, if the event to be passed to the listener instances has not yet been constructed, // construct the event, passing source as the argument // to the one-argument constructor that takes // an Object. This same event instance must be passed to all listener instances. event = _createEvent(systemEventClass, source, event); // Call SystemEvent.isAppropriateListener(javax.faces.event.FacesListener), passing the listener // instance as the argument. If this returns false, take no action on the listener. if (event.isAppropriateListener(listener)) { // Call SystemEvent.processListener(javax.faces.event.FacesListener), passing the listener // instance. event.processListener(listener); } } } boolean listChanged = false; if (listeners.size() == listenersCopy.size()) { for (int i = 0; i < listenersCopy.size(); i++) { if (listenersCopy.get(i) != listeners.get(i)) { listChanged = true; break; } } } else { listChanged = true; } if (listChanged) { for (int i = 0; i < listeners.size(); i++) { SystemEventListener listener = listeners.get(i); // check if listenersCopy.get(i) is valid if (i < listenersCopy.size()) { // The normal case is a listener was added, // so as heuristic, check first // if we can find it at the same location if (!listener.equals(listenersCopy.get(i)) && !listenersCopy.contains(listener)) { listenersCopy.add(listener); } } else { if (!listenersCopy.contains(listener)) { listenersCopy.add(listener); } } } } } } return event; } /** * Method to handle determining if the first request has * been handled by the associated LifecycleImpl. * @return true if the first request has already been processed, false otherwise */ private boolean isFirstRequestProcessed() { FacesContext context = FacesContext.getCurrentInstance(); //if firstRequestProcessed is not set, check the application map if (!_firstRequestProcessed && context != null && Boolean.TRUE.equals(context.getExternalContext() .getApplicationMap().containsKey(LifecycleImpl.FIRST_REQUEST_PROCESSED_PARAM))) { _firstRequestProcessed = true; } return _firstRequestProcessed; } private static class SystemListenerEntry { private List<SystemEventListener> _lstSystemEventListener; private Map<Class<?>, List<SystemEventListener>> _sourceClassMap; public SystemListenerEntry() { } public void addListener(SystemEventListener listener) { assert listener != null; addListenerNoDuplicate(getAnySourceListenersNotNull(), listener); } public void addListener(SystemEventListener listener, Class<?> source) { assert listener != null; if (source == null) { addListener(listener); } else { addListenerNoDuplicate(getSpecificSourceListenersNotNull(source), listener); } } public void removeListener(SystemEventListener listener) { assert listener != null; if (_lstSystemEventListener != null) { _lstSystemEventListener.remove(listener); } } public void removeListener(SystemEventListener listener, Class<?> sourceClass) { assert listener != null; if (sourceClass == null) { removeListener(listener); } else { if (_sourceClassMap != null) { List<SystemEventListener> listeners = _sourceClassMap.get(sourceClass); if (listeners != null) { listeners.remove(listener); } } } } public void publish(Class<? extends SystemEvent> systemEventClass, Class<?> classSource, Object source, SystemEvent event) { if (source != null && _sourceClassMap != null) { event = _traverseListenerList(_sourceClassMap.get(classSource), systemEventClass, source, event); } _traverseListenerList(_lstSystemEventListener, systemEventClass, source, event); } private void addListenerNoDuplicate(List<SystemEventListener> listeners, SystemEventListener listener) { if (!listeners.contains(listener)) { listeners.add(listener); } } private synchronized List<SystemEventListener> getAnySourceListenersNotNull() { if (_lstSystemEventListener == null) { /* * TODO: Check if modification occurs often or not, might have to use a synchronized list instead. * * Registrations found: */ _lstSystemEventListener = new CopyOnWriteArrayList<SystemEventListener>(); } return _lstSystemEventListener; } private synchronized List<SystemEventListener> getSpecificSourceListenersNotNull(Class<?> sourceClass) { if (_sourceClassMap == null) { _sourceClassMap = new ConcurrentHashMap<Class<?>, List<SystemEventListener>>(); } List<SystemEventListener> list = _sourceClassMap.get(sourceClass); if (list == null) { /* * TODO: Check if modification occurs often or not, might have to use a synchronized list instead. * * Registrations found: */ list = new CopyOnWriteArrayList<SystemEventListener>(); _sourceClassMap.put(sourceClass, list); } return list; } } /* * private method to look for config objects on a classmap. The objects can be either a type string * or a Class<?> object. This is done to facilitate lazy loading of config objects. * @param id * @param classMap * @return */ private <T> Class<? extends T> getObjectFromClassMap(String id, Map<String, Object> classMap) { Object obj = classMap.get(id); if (obj == null) { return null; //object for this id wasn't found on the map } if (obj instanceof Class<?>) { return (Class<? extends T>) obj; } else if (obj instanceof String) { Class<?> clazz = ClassUtils.simpleClassForName((String) obj); classMap.put(id, clazz); return (Class<? extends T>) clazz; } //object stored in the map for this id is an invalid type. remove it and return null classMap.remove(id); return null; } private boolean isLazyLoadConfigObjects() { if (_lazyLoadConfigObjects == null) { String configParam = getFaceContext().getExternalContext() .getInitParameter(LAZY_LOAD_CONFIG_OBJECTS_PARAM_NAME); _lazyLoadConfigObjects = configParam == null ? LAZY_LOAD_CONFIG_OBJECTS_DEFAULT_VALUE : Boolean.parseBoolean(configParam); } return _lazyLoadConfigObjects; } }