Author: lincolnthree Date: 2010-10-20 16:07:57 -0400 (Wed, 20 Oct 2010) New Revision: 13895 Added: modules/faces/trunk/impl/src/main/java/org/jboss/seam/faces/environment/FacesFlashProducer.java Log: Added JSF standard javax.faces.Flash @Producer Added: modules/faces/trunk/impl/src/main/java/org/jboss/seam/faces/environment/FacesFlashProducer.java =================================================================== --- modules/faces/trunk/impl/src/main/java/org/jboss/seam/faces/environment/FacesFlashProducer.java (rev 0) +++ modules/faces/trunk/impl/src/main/java/org/jboss/seam/faces/environment/FacesFlashProducer.java 2010-10-20 20:07:57 UTC (rev 13895) @@ -0,0 +1,67 @@ +/* + * JBoss, Home of Professional Open Source + * Copyright 2010, Red Hat, Inc., and individual contributors + * by the @authors tag. See the copyright.txt in the distribution for a + * full listing of individual contributors. + * + * This is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as + * published by the Free Software Foundation; either version 2.1 of + * the License, or (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this software; if not, write to the Free + * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA, or see the FSF site: http://www.fsf.org. + */ +package org.jboss.seam.faces.environment; + +import javax.enterprise.context.ContextNotActiveException; +import javax.enterprise.context.RequestScoped; +import javax.enterprise.inject.Produces; +import javax.faces.context.FacesContext; +import javax.faces.context.Flash; + +/** + * <p> + * A producer which retrieves the {@link Flash} for the current request of the JavaServer Faces application by calling + * {@link FacesContext#getCurrentInstance()} and stores the result as a request-scoped bean instance. + * </p> + * + * <p> + * This producer allows the {@link Flash} to be injected: + * </p> + * + * <pre> + * &#064;Inject + * Flash flash; + * </pre> + * + * @author Lincoln Baxter + */ +public class FacesFlashProducer +{ + @Produces + @RequestScoped + public Flash getFlash() + { + FacesContext facesContext = FacesContext.getCurrentInstance(); + if (facesContext == null) + { + throw new ContextNotActiveException("FacesContext is not active"); + } + + Flash ctx = facesContext.getExternalContext().getFlash(); + if (ctx == null) + { + throw new ContextNotActiveException("Flash is not active"); + } + + return ctx; + } +}