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/*
* $Id: PropertyResolverChainWrapper.java,v 1.15 2007/04/27 22:00:58 ofung Exp $
*/
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2007 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]
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*
* 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]
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* 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
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*/
package com.sun.faces.el;
import javax.el.ELContext;
import javax.el.ELException;
import javax.el.ELResolver;
import javax.faces.context.FacesContext;
import javax.faces.el.EvaluationException;
import javax.faces.el.PropertyResolver;
import java.beans.FeatureDescriptor;
import java.util.Iterator;
import java.util.List;
public class PropertyResolverChainWrapper extends ELResolver {
@SuppressWarnings("deprecation")
private PropertyResolver legacyPR = null;
@SuppressWarnings("deprecation")
public PropertyResolverChainWrapper(PropertyResolver propertyResolver) {
this.legacyPR = propertyResolver;
}
@Override
@SuppressWarnings("deprecation")
public Object getValue(ELContext context, Object base, Object property)
throws ELException {
if (base == null || property == null) {
return null;
}
Object result;
context.setPropertyResolved(true);
FacesContext facesContext = (FacesContext)
context.getContext(FacesContext.class);
ELContext jsfEL = facesContext.getELContext();
jsfEL.setPropertyResolved(true);
if (base instanceof List || base.getClass().isArray()) {
Object indexObj = facesContext.getApplication().getExpressionFactory().
coerceToType(property, Integer.class);
int index = ((Integer)indexObj).intValue();
try {
result = legacyPR.getValue(base, index);
} catch (EvaluationException ex) {
context.setPropertyResolved(false);
throw new ELException(ex);
}
} else {
try {
result = legacyPR.getValue(base, property);
} catch (EvaluationException ex) {
context.setPropertyResolved(false);
throw new ELException(ex);
}
}
context.setPropertyResolved(jsfEL.isPropertyResolved());
return result;
}
@Override
@SuppressWarnings("deprecation")
public Class getType(ELContext context, Object base, Object property)
throws ELException {
if (base == null || property == null) {
return null;
}
Class result;
context.setPropertyResolved(true);
FacesContext facesContext = (FacesContext)
context.getContext(FacesContext.class);
ELContext jsfEL = facesContext.getELContext();
jsfEL.setPropertyResolved(true);
if (base instanceof List || base.getClass().isArray()) {
Object indexObj = facesContext.getApplication().getExpressionFactory().
coerceToType(property, Integer.class);
int index = ((Integer)indexObj).intValue();
try {
result = legacyPR.getType(base, index);
} catch (EvaluationException ex) {
context.setPropertyResolved(false);
throw new ELException(ex);
}
} else {
try {
result = legacyPR.getType(base, property);
} catch (EvaluationException ex) {
context.setPropertyResolved(false);
throw new ELException(ex);
}
}
context.setPropertyResolved(jsfEL.isPropertyResolved());
return result;
}
@Override
@SuppressWarnings("deprecation")
public void setValue(ELContext context, Object base, Object property,
Object val) throws ELException {
if (base == null || property == null) {
return;
}
context.setPropertyResolved(true);
FacesContext facesContext = (FacesContext)
context.getContext(FacesContext.class);
ELContext jsfEL = facesContext.getELContext();
jsfEL.setPropertyResolved(true);
if (base instanceof List || base.getClass().isArray()) {
Object indexObj = facesContext.getApplication().getExpressionFactory().
coerceToType(property, Integer.class);
int index = ((Integer)indexObj).intValue();
try {
legacyPR.setValue(base, index, val);
} catch (EvaluationException ex) {
context.setPropertyResolved(false);
throw new ELException(ex);
}
} else {
try {
legacyPR.setValue(base, property, val);
} catch (EvaluationException ex) {
context.setPropertyResolved(false);
throw new ELException(ex);
}
}
context.setPropertyResolved(jsfEL.isPropertyResolved());
}
@Override
@SuppressWarnings("deprecation")
public boolean isReadOnly(ELContext context, Object base, Object property)
throws ELException {
if (base == null || property == null) {
return false;
}
boolean result;
context.setPropertyResolved(true);
FacesContext facesContext = (FacesContext)
context.getContext(FacesContext.class);
ELContext jsfEL = facesContext.getELContext();
jsfEL.setPropertyResolved(true);
if (base instanceof List || base.getClass().isArray()) {
Object indexObj = facesContext.getApplication().getExpressionFactory().
coerceToType(property, Integer.class);
int index = ((Integer)indexObj).intValue();
try {
result = legacyPR.isReadOnly(base, index);
} catch (EvaluationException ex) {
context.setPropertyResolved(false);
throw new ELException(ex);
}
} else {
try {
result = legacyPR.isReadOnly(base, property);
} catch (EvaluationException ex) {
context.setPropertyResolved(false);
throw new ELException(ex);
}
}
context.setPropertyResolved(jsfEL.isPropertyResolved());
return result;
}
@Override
public Iterator getFeatureDescriptors(ELContext context,
Object base) {
return null;
}
@Override
public Class getCommonPropertyType(ELContext context, Object base) {
if ( base == null ) {
return Object.class;
}
return null;
}
}
