com.sun.faces.flow.FlowCDIExtension Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jsf-impl Show documentation
Show all versions of jsf-impl Show documentation
This is the master POM file for Oracle's Implementation of the JSF 2.2 Specification.
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.faces.flow;
import com.sun.faces.util.FacesLogger;
import com.sun.faces.util.Util;
import com.sun.faces.util.cdi11.CDIUtil;
import java.util.Map;
import java.util.ServiceLoader;
import java.util.concurrent.ConcurrentHashMap;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.enterprise.context.spi.Contextual;
import javax.enterprise.event.Observes;
import javax.enterprise.inject.spi.AfterBeanDiscovery;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.BeanManager;
import javax.enterprise.inject.spi.BeforeBeanDiscovery;
import javax.enterprise.inject.spi.Extension;
import javax.enterprise.inject.spi.ProcessBean;
import javax.faces.flow.FlowScoped;
public class FlowCDIExtension implements Extension {
private Map, FlowCDIContext.FlowBeanInfo> flowScopedBeanFlowIds;
private boolean isCdiOneOneOrGreater = false;
private CDIUtil cdiUtil = null;
private static final Logger LOGGER = FacesLogger.FLOW.getLogger();
public FlowCDIExtension() {
flowScopedBeanFlowIds = new ConcurrentHashMap, FlowCDIContext.FlowBeanInfo>();
isCdiOneOneOrGreater = Util.isCdiOneOneOrGreater();
}
public void processBean(@Observes ProcessBean event) {
FlowScoped flowScoped = event.getAnnotated().getAnnotation(FlowScoped.class);
if (null != flowScoped) {
FlowCDIContext.FlowBeanInfo fbi = new FlowCDIContext.FlowBeanInfo();
fbi.definingDocumentId = flowScoped.definingDocumentId();
fbi.id = flowScoped.value();
flowScopedBeanFlowIds.put(event.getBean(), fbi);
}
}
public void beforeBeanDiscovery(@Observes final BeforeBeanDiscovery event, BeanManager beanManager) {
event.addScope(FlowScoped.class, true, true);
}
void afterBeanDiscovery(@Observes final AfterBeanDiscovery event, BeanManager beanManager) {
event.addContext(new FlowCDIContext(flowScopedBeanFlowIds));
flowScopedBeanFlowIds.clear();
if (isCdiOneOneOrGreater) {
Class clazz = null;
try {
clazz = Class.forName("com.sun.faces.flow.FlowCDIEventFireHelperImpl");
} catch (ClassNotFoundException ex) {
if (LOGGER.isLoggable(Level.SEVERE)) {
LOGGER.log(Level.SEVERE, "CDI 1.1 events not enabled", ex);
}
return;
}
if (null == cdiUtil){
ServiceLoader oneCdiUtil = ServiceLoader.load(CDIUtil.class);
for (CDIUtil oneAndOnly : oneCdiUtil) {
if (null != cdiUtil) {
String message = "Must only have one implementation of CDIUtil available";
if (LOGGER.isLoggable(Level.SEVERE)) {
LOGGER.log(Level.SEVERE, message);
}
throw new IllegalStateException(message);
}
cdiUtil = oneAndOnly;
}
}
if (null != cdiUtil) {
Bean bean = cdiUtil.createHelperBean(beanManager, clazz);
event.addBean(bean);
} else if (LOGGER.isLoggable(Level.SEVERE)) {
LOGGER.log(Level.SEVERE, "Unable to obtain CDI 1.1 utilities for Mojarra");
}
}
}
}