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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 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.
*/
/*
* $Id: ManagedBeanELResolver.java,v 1.19.4.6 2010/04/13 19:38:42 rogerk Exp $
*/
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2010 Sun Microsystems, Inc. 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.html
* or glassfish/bootstrap/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 glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [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.el;
import com.sun.faces.application.ApplicationAssociate;
import com.sun.faces.mgbean.BeanBuilder;
import com.sun.faces.mgbean.BeanManager;
import com.sun.faces.util.MessageUtils;
import com.sun.faces.util.Util;
import javax.el.ELContext;
import javax.el.ELException;
import javax.el.ELResolver;
import javax.el.PropertyNotFoundException;
import javax.faces.context.FacesContext;
import java.beans.FeatureDescriptor;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.faces.context.ExternalContext;
public class ManagedBeanELResolver extends ELResolver {
public ManagedBeanELResolver() {
}
public Object getValue(ELContext context, Object base, Object property)
throws ELException {
if (base != null) {
return null;
}
if (property == null) {
String message = MessageUtils.getExceptionMessageString
(MessageUtils.NULL_PARAMETERS_ERROR_MESSAGE_ID, "property");
throw new PropertyNotFoundException(message);
}
return resolveBean(context, property, true);
}
public Class getType(ELContext context, Object base, Object property)
throws ELException {
if (base == null && property == null) {
String message = MessageUtils.getExceptionMessageString
(MessageUtils.NULL_PARAMETERS_ERROR_MESSAGE_ID, "property");
throw new PropertyNotFoundException(message);
}
return null;
}
public void setValue(ELContext context,
Object base,
Object property,
Object val)
throws ELException {
if (base == null && property == null) {
String message = MessageUtils.getExceptionMessageString
(MessageUtils.NULL_PARAMETERS_ERROR_MESSAGE_ID, "base and property");
throw new PropertyNotFoundException(message);
}
if (base == null) {
// create the bean if it doesn't exist. We won't mark the property
// as resolved in this case, since the spec requires us to actually
// wait to set the value until the ScopeAttributeELResolved so that
// implicit scopes with higher priority than this one have a crack
// at resolving the bean first
resolveBean(context, property, false);
}
}
public boolean isReadOnly(ELContext context, Object base, Object property)
throws ELException {
if (base != null) {
return false;
}
if (property == null) {
String message = MessageUtils.getExceptionMessageString
(MessageUtils.NULL_PARAMETERS_ERROR_MESSAGE_ID, "property");
throw new PropertyNotFoundException(message);
}
return false;
}
public Iterator getFeatureDescriptors(ELContext context, Object base) {
if (base != null) {
return null;
}
FacesContext facesContext =
(FacesContext) context.getContext(FacesContext.class);
BeanManager beanManager = getBeanManager();
if (beanManager == null || beanManager.getRegisteredBeans().isEmpty()) {
List l = Collections.emptyList();
return l.iterator();
}
Map beans = beanManager.getRegisteredBeans();
List list =
new ArrayList(beans.size());
// iterate over the list of managed beans
for (Map.Entry bean : beans.entrySet()) {
String beanName = bean.getKey();
BeanBuilder builder = bean.getValue();
String loc = Util.getLocaleFromContextOrSystem(facesContext).toString();
Map descriptions = builder.getDescriptions();
String description = null;
if (descriptions != null) {
description = descriptions.get(loc);
if (description == null) {
description = descriptions.get("DEFAULT");
}
}
list.add(Util.getFeatureDescriptor(beanName,
beanName,
(description == null) ? "" : description,
false,
false,
true,
builder.getBeanClass(),
Boolean.TRUE));
}
return list.iterator();
}
public Class getCommonPropertyType(ELContext context, Object base) {
if (base != null) {
return null;
}
return Object.class;
}
// --------------------------------------------------------- Private Methods
private static BeanManager getBeanManager() {
ApplicationAssociate associate = ApplicationAssociate.getCurrentInstance();
return ((associate != null) ? associate.getBeanManager() : null);
}
private Object resolveBean(ELContext context, Object property, boolean markAsResolvedIfCreated) {
Object result = null;
BeanManager manager = getBeanManager();
if (manager != null) {
String beanName = property.toString();
BeanBuilder builder = manager.getBuilder(beanName);
if (builder != null) {
FacesContext facesContext = (FacesContext)
context.getContext(FacesContext.class);
// JAVASERVERFACES-2989: Make sure to check request, session, and application.
ExternalContext extContext = facesContext.getExternalContext();
if (extContext.getRequestMap().containsKey(beanName)) {
return null;
} else if (null != extContext.getSession(false) &&
extContext.getSessionMap().containsKey(beanName)) {
return null;
} else if (extContext.getApplicationMap().containsKey(beanName)) {
return null;
}
result = manager.getBeanFromScope(beanName, builder, facesContext);
if (result == null) {
result = manager.create(beanName, builder, facesContext);
}
context.setPropertyResolved(markAsResolvedIfCreated && (result != null));
}
}
return result;
}
}