/*
* Demoiselle Framework
* Copyright (C) 2010 SERPRO
* ----------------------------------------------------------------------------
* This file is part of Demoiselle Framework.
*
* Demoiselle Framework is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License version 3
* as published by the Free Software Foundation.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License version 3
* along with this program; if not, see <http://www.gnu.org/licenses/>
* or write to the Free Software Foundation, Inc., 51 Franklin Street,
* Fifth Floor, Boston, MA 02110-1301, USA.
* ----------------------------------------------------------------------------
* Este arquivo é parte do Framework Demoiselle.
*
* O Framework Demoiselle é um software livre; você pode redistribuí-lo e/ou
* modificá-lo dentro dos termos da GNU LGPL versão 3 como publicada pela Fundação
* do Software Livre (FSF).
*
* Este programa é distribuído na esperança que possa ser útil, mas SEM NENHUMA
* GARANTIA; sem uma garantia implícita de ADEQUAÇÃO a qualquer MERCADO ou
* APLICAÇÃO EM PARTICULAR. Veja a Licença Pública Geral GNU/LGPL em português
* para maiores detalhes.
*
* Você deve ter recebido uma cópia da GNU LGPL versão 3, sob o título
* "LICENCA.txt", junto com esse programa. Se não, acesse <http://www.gnu.org/licenses/>
* ou escreva para a Fundação do Software Livre (FSF) Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02111-1301, USA.
*/
/*
* Demoiselle Framework Copyright (c) 2010 Serpro and other contributors as indicated by the @author tag. See the
* copyright.txt in the distribution for a full listing of contributors. Demoiselle Framework is an open source Java EE
* library designed to accelerate the development of transactional database Web applications. Demoiselle Framework is
* released under the terms of the LGPL license 3 http://www.gnu.org/licenses/lgpl.html LGPL License 3 This file is part
* of Demoiselle Framework. Demoiselle Framework is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License 3 as published by the Free Software Foundation. Demoiselle Framework
* 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 Demoiselle Framework. If not, see
* <http://www.gnu.org/licenses/>.
*/
package br.gov.frameworkdemoiselle.internal.context;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import javax.annotation.PreDestroy;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.inject.Produces;
import javax.enterprise.inject.spi.AfterBeanDiscovery;
import javax.enterprise.inject.spi.InjectionPoint;
import org.slf4j.Logger;
import br.gov.frameworkdemoiselle.context.ConversationContext;
import br.gov.frameworkdemoiselle.context.CustomContext;
import br.gov.frameworkdemoiselle.context.RequestContext;
import br.gov.frameworkdemoiselle.context.SessionContext;
import br.gov.frameworkdemoiselle.context.StaticContext;
import br.gov.frameworkdemoiselle.context.ViewContext;
import br.gov.frameworkdemoiselle.internal.bootstrap.CustomContextBootstrap;
import br.gov.frameworkdemoiselle.internal.implementation.StrategySelector;
import br.gov.frameworkdemoiselle.internal.producer.LoggerProducer;
import br.gov.frameworkdemoiselle.util.Beans;
import br.gov.frameworkdemoiselle.util.ResourceBundle;
/**
* Produces instances of {@link CustomContext} to control contexts not activated
* by the container
*
* @author serpro
*
*/
@ApplicationScoped
public class CustomContextProducer {
private Logger logger;
private transient ResourceBundle bundle;
/**
* <p>Store a context into this producer. The context must have
* been registered into CDI (unsing {@link AfterBeanDiscovery#addContext(javax.enterprise.context.spi.Context context)}) by a portable extension,
* this method will not do this.</p>
*
* <p>This producer can only produce contexts registered through this method.</p>
*
*/
public void addRegisteredContext(CustomContext context){
Logger logger = getLogger();
ResourceBundle bundle = getBundle();
if (!getContexts().contains(context)){
getContexts().add(context);
logger.debug( bundle.getString("bootstrap-context-added", context.getClass().getCanonicalName() , context.getScope().getSimpleName() ) );
}
else{
logger.warn( bundle.getString("bootstrap-context-already-managed", context.getClass().getCanonicalName() , context.getScope().getSimpleName() ) );
}
}
/**
* Deactivates all registered contexts and clear the context collection
*/
@PreDestroy
public void closeContexts(){
//Desativa todos os contextos registrados.
for (CustomContext context : getContexts()){
context.deactivate();
}
getContexts().clear();
}
private List<CustomContext> getContexts(){
/* The demoiselle-core CustomContextBootstrap class creates default contexts for the main
* scopes of an application (request, session and conversation) and some custom contexts
* (view and static). This method injects a reference to the CustomContextBootstrap to obtain those
* contexts. Also any context registered after application start-up will be obtained by this method. */
CustomContextBootstrap contextBootstrap = Beans.getReference(CustomContextBootstrap.class);
return contextBootstrap.getCustomContexts();
}
/////////////PRODUCERS///////////////////
@Produces
public RequestContext getRequestContext(InjectionPoint ip){
if (ip!=null){
return getContext(ip);
}
else{
return getContext(RequestContext.class);
}
}
@Produces
public SessionContext getSessionContext(InjectionPoint ip){
if (ip!=null){
return getContext(ip);
}
else{
return getContext(SessionContext.class);
}
}
@Produces
public ViewContext getViewContext(InjectionPoint ip){
if (ip!=null){
return getContext(ip);
}
else{
return getContext(ViewContext.class);
}
}
@Produces
public StaticContext getStaticContext(InjectionPoint ip){
if (ip!=null){
return getContext(ip);
}
else{
return getContext(StaticContext.class);
}
}
@Produces
public ConversationContext getConversationContext(InjectionPoint ip){
if (ip!=null){
return getContext(ip);
}
else{
return getContext(ConversationContext.class);
}
}
/////////////END OF PRODUCERS///////////////////
@SuppressWarnings("unchecked")
private <T extends CustomContext> T getContext(InjectionPoint ip){
T producedContext = null;
if (ip!=null){
Class<T> beanClass = (Class<T>) ip.getType();
producedContext = (T) getContext(beanClass);
}
if (producedContext!=null){
getLogger().debug( getBundle().getString("custom-context-selected" , producedContext.getClass().getCanonicalName()) );
}
return producedContext;
}
@SuppressWarnings("unchecked")
private <T extends CustomContext> T getContext(Class<T> contextClass){
CustomContext producedContext = null;
ArrayList<CustomContext> selectableContexts = new ArrayList<CustomContext>();
for (CustomContext context : getContexts()){
if ( contextClass.isAssignableFrom( context.getClass() ) ){
if (context.isActive()){
producedContext = context;
break;
}
else{
selectableContexts.add(context);
}
}
}
if (producedContext==null && !selectableContexts.isEmpty()){
producedContext = StrategySelector.selectInstance(CustomContext.class, selectableContexts);
}
return (T) producedContext;
}
private Logger getLogger() {
if (this.logger == null) {
this.logger = LoggerProducer.create(this.getClass());
}
return this.logger;
}
private ResourceBundle getBundle() {
if (bundle == null) {
bundle = new ResourceBundle("demoiselle-core-bundle", Locale.getDefault());
}
return bundle;
}
}