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EE4J Compatible Implementation for Jakarta Faces API
/*
* Copyright (c) 1997, 2020 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package com.sun.faces.application.applicationimpl;
import static com.sun.faces.util.MessageUtils.ILLEGAL_ATTEMPT_SETTING_APPLICATION_ARTIFACT_ID;
import static com.sun.faces.util.MessageUtils.getExceptionMessageString;
import static com.sun.faces.util.Util.coalesce;
import static com.sun.faces.util.Util.notNull;
import static java.util.logging.Level.FINE;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.Locale;
import java.util.ResourceBundle;
import java.util.logging.Logger;
import com.sun.faces.application.ApplicationAssociate;
import com.sun.faces.util.FacesLogger;
import jakarta.faces.application.Application;
import jakarta.faces.application.NavigationHandler;
import jakarta.faces.application.ResourceHandler;
import jakarta.faces.application.StateManager;
import jakarta.faces.application.ViewHandler;
import jakarta.faces.context.FacesContext;
import jakarta.faces.event.ActionListener;
import jakarta.faces.flow.FlowHandler;
public class Singletons {
private static final Logger LOGGER = FacesLogger.APPLICATION.getLogger();
private static final String CONTEXT = "context";
private final ApplicationAssociate associate;
private volatile ActionListener actionListener;
private volatile NavigationHandler navigationHandler;
private volatile ViewHandler viewHandler;
private volatile ResourceHandler resourceHandler;
private volatile StateManager stateManager;
private volatile ArrayList supportedLocales;
private volatile Locale defaultLocale;
private volatile String messageBundle;
private String defaultRenderKitId;
public Singletons(ApplicationAssociate applicationAssociate) {
associate = applicationAssociate;
}
/*
* @see jakarta.faces.application.Application#getViewHandler()
*/
public ViewHandler getViewHandler() {
return viewHandler;
}
/*
* @see jakarta.faces.application.Application#setViewHandler(jakarta.faces.application.ViewHandler)
*/
public synchronized void setViewHandler(ViewHandler viewHandler) {
notNull("viewHandler", viewHandler);
notRequestServiced("ViewHandler");
this.viewHandler = viewHandler;
if (LOGGER.isLoggable(FINE)) {
LOGGER.log(FINE, MessageFormat.format("set ViewHandler Instance to ''{0}''", viewHandler.getClass().getName()));
}
}
/*
* @see jakarta.faces.application.Application#getResourceHandler()
*/
public ResourceHandler getResourceHandler() {
return resourceHandler;
}
/*
* @see jakarta.faces.application.Application#setResourceHandler(jakarta.faces.application.ResourceHandler)
*/
public synchronized void setResourceHandler(ResourceHandler resourceHandler) {
notNull("resourceHandler", resourceHandler);
notRequestServiced("ResourceHandler");
this.resourceHandler = resourceHandler;
if (LOGGER.isLoggable(FINE)) {
LOGGER.log(FINE, "set ResourceHandler Instance to ''{0}''", resourceHandler.getClass().getName());
}
}
/*
* @see jakarta.faces.application.Application#getStateManager()
*/
public StateManager getStateManager() {
return stateManager;
}
/*
* @see jakarta.faces.application.Application#setStateManager(jakarta.faces.application.StateManager)
*/
public synchronized void setStateManager(StateManager stateManager) {
notNull("stateManager", stateManager);
notRequestServiced("StateManager");
this.stateManager = stateManager;
if (LOGGER.isLoggable(FINE)) {
LOGGER.log(FINE, MessageFormat.format("set StateManager Instance to ''{0}''", stateManager.getClass().getName()));
}
}
/*
* @see jakarta.faces.application.Application#getActionListener()
*/
public ActionListener getActionListener() {
return actionListener;
}
/*
* @see Application#setActionListener(jakarta.faces.event.ActionListener)
*/
public synchronized void setActionListener(ActionListener actionListener) {
notNull("actionListener", actionListener);
this.actionListener = actionListener;
if (LOGGER.isLoggable(FINE)) {
LOGGER.fine(MessageFormat.format("set ActionListener Instance to ''{0}''", actionListener.getClass().getName()));
}
}
/*
* @see jakarta.faces.application.Application#getNavigationHandler()
*/
public NavigationHandler getNavigationHandler() {
return navigationHandler;
}
/*
* @see jakarta.faces.application.Application#setNavigationHandler(jakarta.faces.application.NavigationHandler)
*/
public synchronized void setNavigationHandler(NavigationHandler navigationHandler) {
notNull("navigationHandler", navigationHandler);
this.navigationHandler = navigationHandler;
if (LOGGER.isLoggable(FINE)) {
LOGGER.fine(MessageFormat.format("set NavigationHandler Instance to ''{0}''", navigationHandler.getClass().getName()));
}
}
public FlowHandler getFlowHandler() {
return associate.getFlowHandler();
}
public synchronized void setFlowHandler(FlowHandler flowHandler) {
notNull("flowHandler", flowHandler);
associate.setFlowHandler(flowHandler);
if (LOGGER.isLoggable(FINE)) {
LOGGER.fine(MessageFormat.format("set FlowHandler Instance to ''{0}''", flowHandler.getClass().getName()));
}
}
/*
* @see jakarta.faces.application.Application#getSupportedLocales()
*/
public Iterator getSupportedLocales() {
return coalesce(supportedLocales, Collections.emptyList()).iterator();
}
/*
* @see jakarta.faces.application.Application#setSupportedLocales(java.util.Collection)
*/
public synchronized void setSupportedLocales(Collection newLocales) {
notNull("newLocales", newLocales);
supportedLocales = new ArrayList<>(newLocales);
if (LOGGER.isLoggable(FINE)) {
LOGGER.log(FINE, MessageFormat.format("set Supported Locales ''{0}''", supportedLocales.toString()));
}
}
/*
* @see jakarta.faces.application.Application#getDefaultLocale()
*/
public Locale getDefaultLocale() {
return defaultLocale;
}
/*
* @see jakarta.faces.application.Application#setDefaultLocale(java.util.Locale)
*/
public synchronized void setDefaultLocale(Locale locale) {
notNull("locale", locale);
defaultLocale = locale;
if (LOGGER.isLoggable(FINE)) {
LOGGER.log(FINE, MessageFormat.format("set defaultLocale ''{0}''", defaultLocale.getClass().getName()));
}
}
/*
* @see jakarta.faces.application.Application#setMessageBundle(String)
*/
public synchronized void setMessageBundle(String messageBundle) {
notNull("messageBundle", messageBundle);
this.messageBundle = messageBundle;
if (LOGGER.isLoggable(FINE)) {
LOGGER.log(FINE, MessageFormat.format("set messageBundle ''{0}''", messageBundle));
}
}
/*
* @see jakarta.faces.application.Application#getMessageBundle()
*/
public String getMessageBundle() {
return messageBundle;
}
/*
* @see jakarta.faces.application.Application#getDefaultRenderKitId()
*/
public String getDefaultRenderKitId() {
return defaultRenderKitId;
}
/*
* @see jakarta.faces.application.Application#setDefaultRenderKitId(String)
*/
public void setDefaultRenderKitId(String renderKitId) {
defaultRenderKitId = renderKitId;
}
/*
* @see jakarta.faces.application.Application#getResourceBundle(jakarta.faces.context.FacesContext, String)
*/
public ResourceBundle getResourceBundle(FacesContext context, String var) {
notNull(CONTEXT, context);
notNull("var", var);
return associate.getResourceBundle(context, var);
}
private void notRequestServiced(String artifactId) {
if (associate.hasRequestBeenServiced()) {
throw new IllegalStateException(getExceptionMessageString(ILLEGAL_ATTEMPT_SETTING_APPLICATION_ARTIFACT_ID, artifactId));
}
}
}